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ramips: mt7620: eMMC: fix compiler warnings in non-debug mode
[openwrt/openwrt.git] / target / linux / ramips / patches-4.9 / 0046-mmc-MIPS-ralink-add-sdhci-for-mt7620a-SoC.patch
1 From 23147af14531cbdada194b94120ef8774f46292d Mon Sep 17 00:00:00 2001
2 From: John Crispin <blogic@openwrt.org>
3 Date: Thu, 13 Nov 2014 19:08:40 +0100
4 Subject: [PATCH 46/53] mmc: MIPS: ralink: add sdhci for mt7620a SoC
5
6 Signed-off-by: John Crispin <blogic@openwrt.org>
7 ---
8 drivers/mmc/host/Kconfig | 2 +
9 drivers/mmc/host/Makefile | 1 +
10 drivers/mmc/host/mtk-mmc/Kconfig | 16 +
11 drivers/mmc/host/mtk-mmc/Makefile | 42 +
12 drivers/mmc/host/mtk-mmc/board.h | 137 ++
13 drivers/mmc/host/mtk-mmc/dbg.c | 347 ++++
14 drivers/mmc/host/mtk-mmc/dbg.h | 156 ++
15 drivers/mmc/host/mtk-mmc/mt6575_sd.h | 1001 +++++++++++
16 drivers/mmc/host/mtk-mmc/sd.c | 3060 ++++++++++++++++++++++++++++++++++
17 9 files changed, 4762 insertions(+)
18 create mode 100644 drivers/mmc/host/mtk-mmc/Kconfig
19 create mode 100644 drivers/mmc/host/mtk-mmc/Makefile
20 create mode 100644 drivers/mmc/host/mtk-mmc/board.h
21 create mode 100644 drivers/mmc/host/mtk-mmc/dbg.c
22 create mode 100644 drivers/mmc/host/mtk-mmc/dbg.h
23 create mode 100644 drivers/mmc/host/mtk-mmc/mt6575_sd.h
24 create mode 100644 drivers/mmc/host/mtk-mmc/sd.c
25
26 --- a/drivers/mmc/host/Kconfig
27 +++ b/drivers/mmc/host/Kconfig
28 @@ -798,3 +798,6 @@ config MMC_SDHCI_BRCMSTB
29 Broadcom STB SoCs.
30
31 If unsure, say Y.
32 +
33 +source "drivers/mmc/host/mtk-mmc/Kconfig"
34 +
35 --- a/drivers/mmc/host/Makefile
36 +++ b/drivers/mmc/host/Makefile
37 @@ -2,6 +2,7 @@
38 # Makefile for MMC/SD host controller drivers
39 #
40
41 +obj-$(CONFIG_MTK_MMC) += mtk-mmc/
42 obj-$(CONFIG_MMC_ARMMMCI) += mmci.o
43 obj-$(CONFIG_MMC_QCOM_DML) += mmci_qcom_dml.o
44 obj-$(CONFIG_MMC_PXA) += pxamci.o
45 --- /dev/null
46 +++ b/drivers/mmc/host/mtk-mmc/Kconfig
47 @@ -0,0 +1,16 @@
48 +config MTK_MMC
49 + tristate "MTK SD/MMC"
50 + depends on !MTD_NAND_RALINK
51 +
52 +config MTK_AEE_KDUMP
53 + bool "MTK AEE KDUMP"
54 + depends on MTK_MMC
55 +
56 +config MTK_MMC_CD_POLL
57 + bool "Card Detect with Polling"
58 + depends on MTK_MMC
59 +
60 +config MTK_MMC_EMMC_8BIT
61 + bool "eMMC 8-bit support"
62 + depends on MTK_MMC && RALINK_MT7628
63 +
64 --- /dev/null
65 +++ b/drivers/mmc/host/mtk-mmc/Makefile
66 @@ -0,0 +1,42 @@
67 +# Copyright Statement:
68 +#
69 +# This software/firmware and related documentation ("MediaTek Software") are
70 +# protected under relevant copyright laws. The information contained herein
71 +# is confidential and proprietary to MediaTek Inc. and/or its licensors.
72 +# Without the prior written permission of MediaTek inc. and/or its licensors,
73 +# any reproduction, modification, use or disclosure of MediaTek Software,
74 +# and information contained herein, in whole or in part, shall be strictly prohibited.
75 +#
76 +# MediaTek Inc. (C) 2010. All rights reserved.
77 +#
78 +# BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
79 +# THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
80 +# RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
81 +# AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
82 +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
83 +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
84 +# NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
85 +# SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
86 +# SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
87 +# THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
88 +# THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
89 +# CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
90 +# SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
91 +# STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
92 +# CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
93 +# AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
94 +# OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
95 +# MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
96 +#
97 +# The following software/firmware and/or related documentation ("MediaTek Software")
98 +# have been modified by MediaTek Inc. All revisions are subject to any receiver's
99 +# applicable license agreements with MediaTek Inc.
100 +
101 +obj-$(CONFIG_MTK_MMC) += mtk_sd.o
102 +mtk_sd-objs := sd.o dbg.o
103 +ifeq ($(CONFIG_MTK_AEE_KDUMP),y)
104 +EXTRA_CFLAGS += -DMT6575_SD_DEBUG
105 +endif
106 +
107 +clean:
108 + @rm -f *.o modules.order .*.cmd
109 --- /dev/null
110 +++ b/drivers/mmc/host/mtk-mmc/board.h
111 @@ -0,0 +1,137 @@
112 +/* Copyright Statement:
113 + *
114 + * This software/firmware and related documentation ("MediaTek Software") are
115 + * protected under relevant copyright laws. The information contained herein
116 + * is confidential and proprietary to MediaTek Inc. and/or its licensors.
117 + * Without the prior written permission of MediaTek inc. and/or its licensors,
118 + * any reproduction, modification, use or disclosure of MediaTek Software,
119 + * and information contained herein, in whole or in part, shall be strictly prohibited.
120 + */
121 +/* MediaTek Inc. (C) 2010. All rights reserved.
122 + *
123 + * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
124 + * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
125 + * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
126 + * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
127 + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
128 + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
129 + * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
130 + * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
131 + * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
132 + * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
133 + * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
134 + * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
135 + * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
136 + * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
137 + * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
138 + * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
139 + * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
140 + * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
141 + *
142 + * The following software/firmware and/or related documentation ("MediaTek Software")
143 + * have been modified by MediaTek Inc. All revisions are subject to any receiver's
144 + * applicable license agreements with MediaTek Inc.
145 + */
146 +
147 +#ifndef __ARCH_ARM_MACH_BOARD_H
148 +#define __ARCH_ARM_MACH_BOARD_H
149 +
150 +#include <generated/autoconf.h>
151 +#include <linux/pm.h>
152 +/* --- chhung */
153 +// #include <mach/mt6575.h>
154 +// #include <board-custom.h>
155 +/* end of chhung */
156 +
157 +typedef void (*sdio_irq_handler_t)(void*); /* external irq handler */
158 +typedef void (*pm_callback_t)(pm_message_t state, void *data);
159 +
160 +#define MSDC_CD_PIN_EN (1 << 0) /* card detection pin is wired */
161 +#define MSDC_WP_PIN_EN (1 << 1) /* write protection pin is wired */
162 +#define MSDC_RST_PIN_EN (1 << 2) /* emmc reset pin is wired */
163 +#define MSDC_SDIO_IRQ (1 << 3) /* use internal sdio irq (bus) */
164 +#define MSDC_EXT_SDIO_IRQ (1 << 4) /* use external sdio irq */
165 +#define MSDC_REMOVABLE (1 << 5) /* removable slot */
166 +#define MSDC_SYS_SUSPEND (1 << 6) /* suspended by system */
167 +#define MSDC_HIGHSPEED (1 << 7) /* high-speed mode support */
168 +#define MSDC_UHS1 (1 << 8) /* uhs-1 mode support */
169 +#define MSDC_DDR (1 << 9) /* ddr mode support */
170 +
171 +
172 +#define MSDC_SMPL_RISING (0)
173 +#define MSDC_SMPL_FALLING (1)
174 +
175 +#define MSDC_CMD_PIN (0)
176 +#define MSDC_DAT_PIN (1)
177 +#define MSDC_CD_PIN (2)
178 +#define MSDC_WP_PIN (3)
179 +#define MSDC_RST_PIN (4)
180 +
181 +enum {
182 + MSDC_CLKSRC_48MHZ = 0,
183 +// MSDC_CLKSRC_26MHZ = 0,
184 +// MSDC_CLKSRC_197MHZ = 1,
185 +// MSDC_CLKSRC_208MHZ = 2
186 +};
187 +
188 +struct msdc_hw {
189 + unsigned char clk_src; /* host clock source */
190 + unsigned char cmd_edge; /* command latch edge */
191 + unsigned char data_edge; /* data latch edge */
192 + unsigned char clk_drv; /* clock pad driving */
193 + unsigned char cmd_drv; /* command pad driving */
194 + unsigned char dat_drv; /* data pad driving */
195 + unsigned long flags; /* hardware capability flags */
196 + unsigned long data_pins; /* data pins */
197 + unsigned long data_offset; /* data address offset */
198 +
199 + /* config gpio pull mode */
200 + void (*config_gpio_pin)(int type, int pull);
201 +
202 + /* external power control for card */
203 + void (*ext_power_on)(void);
204 + void (*ext_power_off)(void);
205 +
206 + /* external sdio irq operations */
207 + void (*request_sdio_eirq)(sdio_irq_handler_t sdio_irq_handler, void *data);
208 + void (*enable_sdio_eirq)(void);
209 + void (*disable_sdio_eirq)(void);
210 +
211 + /* external cd irq operations */
212 + void (*request_cd_eirq)(sdio_irq_handler_t cd_irq_handler, void *data);
213 + void (*enable_cd_eirq)(void);
214 + void (*disable_cd_eirq)(void);
215 + int (*get_cd_status)(void);
216 +
217 + /* power management callback for external module */
218 + void (*register_pm)(pm_callback_t pm_cb, void *data);
219 +};
220 +
221 +extern struct msdc_hw msdc0_hw;
222 +extern struct msdc_hw msdc1_hw;
223 +extern struct msdc_hw msdc2_hw;
224 +extern struct msdc_hw msdc3_hw;
225 +
226 +/*GPS driver*/
227 +#define GPS_FLAG_FORCE_OFF 0x0001
228 +struct mt3326_gps_hardware {
229 + int (*ext_power_on)(int);
230 + int (*ext_power_off)(int);
231 +};
232 +extern struct mt3326_gps_hardware mt3326_gps_hw;
233 +
234 +/* NAND driver */
235 +struct mt6575_nand_host_hw {
236 + unsigned int nfi_bus_width; /* NFI_BUS_WIDTH */
237 + unsigned int nfi_access_timing; /* NFI_ACCESS_TIMING */
238 + unsigned int nfi_cs_num; /* NFI_CS_NUM */
239 + unsigned int nand_sec_size; /* NAND_SECTOR_SIZE */
240 + unsigned int nand_sec_shift; /* NAND_SECTOR_SHIFT */
241 + unsigned int nand_ecc_size;
242 + unsigned int nand_ecc_bytes;
243 + unsigned int nand_ecc_mode;
244 +};
245 +extern struct mt6575_nand_host_hw mt6575_nand_hw;
246 +
247 +#endif /* __ARCH_ARM_MACH_BOARD_H */
248 +
249 --- /dev/null
250 +++ b/drivers/mmc/host/mtk-mmc/dbg.c
251 @@ -0,0 +1,348 @@
252 +/* Copyright Statement:
253 + *
254 + * This software/firmware and related documentation ("MediaTek Software") are
255 + * protected under relevant copyright laws. The information contained herein
256 + * is confidential and proprietary to MediaTek Inc. and/or its licensors.
257 + * Without the prior written permission of MediaTek inc. and/or its licensors,
258 + * any reproduction, modification, use or disclosure of MediaTek Software,
259 + * and information contained herein, in whole or in part, shall be strictly prohibited.
260 + *
261 + * MediaTek Inc. (C) 2010. All rights reserved.
262 + *
263 + * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
264 + * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
265 + * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
266 + * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
267 + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
268 + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
269 + * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
270 + * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
271 + * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
272 + * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
273 + * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
274 + * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
275 + * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
276 + * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
277 + * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
278 + * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
279 + * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
280 + * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
281 + *
282 + * The following software/firmware and/or related documentation ("MediaTek Software")
283 + * have been modified by MediaTek Inc. All revisions are subject to any receiver's
284 + * applicable license agreements with MediaTek Inc.
285 + */
286 +
287 +#include <linux/version.h>
288 +#include <linux/kernel.h>
289 +#include <linux/sched.h>
290 +#include <linux/kthread.h>
291 +#include <linux/delay.h>
292 +#include <linux/module.h>
293 +#include <linux/init.h>
294 +#include <linux/proc_fs.h>
295 +#include <linux/string.h>
296 +#include <linux/uaccess.h>
297 +// #include <mach/mt6575_gpt.h> /* --- by chhung */
298 +#include "dbg.h"
299 +#include "mt6575_sd.h"
300 +#include <linux/seq_file.h>
301 +
302 +/* mode select */
303 +u32 dma_size[4]={
304 + 512,
305 + 512,
306 + 512,
307 + 512
308 +};
309 +msdc_mode drv_mode[4]={
310 + MODE_SIZE_DEP, /* using DMA or not depend on the size */
311 + MODE_SIZE_DEP,
312 + MODE_SIZE_DEP,
313 + MODE_SIZE_DEP
314 +};
315 +
316 +#if defined (MT6575_SD_DEBUG)
317 +static char cmd_buf[256];
318 +
319 +/* for debug zone */
320 +static unsigned int sd_debug_zone[4]={
321 + 0,
322 + 0,
323 + 0,
324 + 0
325 +};
326 +
327 +
328 +/* for driver profile */
329 +#define TICKS_ONE_MS (13000)
330 +u32 gpt_enable = 0;
331 +u32 sdio_pro_enable = 0; /* make sure gpt is enabled */
332 +u32 sdio_pro_time = 0; /* no more than 30s */
333 +struct sdio_profile sdio_perfomance = {0};
334 +
335 +#if 0 /* --- chhung */
336 +void msdc_init_gpt(void)
337 +{
338 + GPT_CONFIG config;
339 +
340 + config.num = GPT6;
341 + config.mode = GPT_FREE_RUN;
342 + config.clkSrc = GPT_CLK_SRC_SYS;
343 + config.clkDiv = GPT_CLK_DIV_1; /* 13MHz GPT6 */
344 +
345 + if (GPT_Config(config) == FALSE )
346 + return;
347 +
348 + GPT_Start(GPT6);
349 +}
350 +#endif /* end of --- */
351 +
352 +u32 msdc_time_calc(u32 old_L32, u32 old_H32, u32 new_L32, u32 new_H32)
353 +{
354 + u32 ret = 0;
355 +
356 + if (new_H32 == old_H32) {
357 + ret = new_L32 - old_L32;
358 + } else if(new_H32 == (old_H32 + 1)) {
359 + if (new_L32 > old_L32) {
360 + printk("msdc old_L<0x%x> new_L<0x%x>\n", old_L32, new_L32);
361 + }
362 + ret = (0xffffffff - old_L32);
363 + ret += new_L32;
364 + } else {
365 + printk("msdc old_H<0x%x> new_H<0x%x>\n", old_H32, new_H32);
366 + }
367 +
368 + return ret;
369 +}
370 +
371 +void msdc_sdio_profile(struct sdio_profile* result)
372 +{
373 + struct cmd_profile* cmd;
374 + u32 i;
375 +
376 + printk("sdio === performance dump ===\n");
377 + printk("sdio === total execute tick<%d> time<%dms> Tx<%dB> Rx<%dB>\n",
378 + result->total_tc, result->total_tc / TICKS_ONE_MS,
379 + result->total_tx_bytes, result->total_rx_bytes);
380 +
381 + /* CMD52 Dump */
382 + cmd = &result->cmd52_rx;
383 + printk("sdio === CMD52 Rx <%d>times tick<%d> Max<%d> Min<%d> Aver<%d>\n", cmd->count, cmd->tot_tc,
384 + cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count);
385 + cmd = &result->cmd52_tx;
386 + printk("sdio === CMD52 Tx <%d>times tick<%d> Max<%d> Min<%d> Aver<%d>\n", cmd->count, cmd->tot_tc,
387 + cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count);
388 +
389 + /* CMD53 Rx bytes + block mode */
390 + for (i=0; i<512; i++) {
391 + cmd = &result->cmd53_rx_byte[i];
392 + if (cmd->count) {
393 + printk("sdio<%6d><%3dB>_Rx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
394 + cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count,
395 + cmd->tot_bytes, (cmd->tot_bytes/10)*13 / (cmd->tot_tc/10));
396 + }
397 + }
398 + for (i=0; i<100; i++) {
399 + cmd = &result->cmd53_rx_blk[i];
400 + if (cmd->count) {
401 + printk("sdio<%6d><%3d>B_Rx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
402 + cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count,
403 + cmd->tot_bytes, (cmd->tot_bytes/10)*13 / (cmd->tot_tc/10));
404 + }
405 + }
406 +
407 + /* CMD53 Tx bytes + block mode */
408 + for (i=0; i<512; i++) {
409 + cmd = &result->cmd53_tx_byte[i];
410 + if (cmd->count) {
411 + printk("sdio<%6d><%3dB>_Tx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
412 + cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count,
413 + cmd->tot_bytes, (cmd->tot_bytes/10)*13 / (cmd->tot_tc/10));
414 + }
415 + }
416 + for (i=0; i<100; i++) {
417 + cmd = &result->cmd53_tx_blk[i];
418 + if (cmd->count) {
419 + printk("sdio<%6d><%3d>B_Tx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
420 + cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count,
421 + cmd->tot_bytes, (cmd->tot_bytes/10)*13 / (cmd->tot_tc/10));
422 + }
423 + }
424 +
425 + printk("sdio === performance dump done ===\n");
426 +}
427 +
428 +//========= sdio command table ===========
429 +void msdc_performance(u32 opcode, u32 sizes, u32 bRx, u32 ticks)
430 +{
431 + struct sdio_profile* result = &sdio_perfomance;
432 + struct cmd_profile* cmd;
433 + u32 block;
434 +
435 + if (sdio_pro_enable == 0) {
436 + return;
437 + }
438 +
439 + if (opcode == 52) {
440 + cmd = bRx ? &result->cmd52_rx : &result->cmd52_tx;
441 + } else if (opcode == 53) {
442 + if (sizes < 512) {
443 + cmd = bRx ? &result->cmd53_rx_byte[sizes] : &result->cmd53_tx_byte[sizes];
444 + } else {
445 + block = sizes / 512;
446 + if (block >= 99) {
447 + printk("cmd53 error blocks\n");
448 + while(1);
449 + }
450 + cmd = bRx ? &result->cmd53_rx_blk[block] : &result->cmd53_tx_blk[block];
451 + }
452 + } else {
453 + return;
454 + }
455 +
456 + /* update the members */
457 + if (ticks > cmd->max_tc){
458 + cmd->max_tc = ticks;
459 + }
460 + if (cmd->min_tc == 0 || ticks < cmd->min_tc) {
461 + cmd->min_tc = ticks;
462 + }
463 + cmd->tot_tc += ticks;
464 + cmd->tot_bytes += sizes;
465 + cmd->count ++;
466 +
467 + if (bRx) {
468 + result->total_rx_bytes += sizes;
469 + } else {
470 + result->total_tx_bytes += sizes;
471 + }
472 + result->total_tc += ticks;
473 +
474 + /* dump when total_tc > 30s */
475 + if (result->total_tc >= sdio_pro_time * TICKS_ONE_MS * 1000) {
476 + msdc_sdio_profile(result);
477 + memset(result, 0 , sizeof(struct sdio_profile));
478 + }
479 +}
480 +
481 +//========== driver proc interface ===========
482 +static int msdc_debug_proc_read(struct seq_file *s, void *p)
483 +{
484 + seq_printf(s, "\n=========================================\n");
485 + seq_printf(s, "Index<0> + Id + Zone\n");
486 + seq_printf(s, "-> PWR<9> WRN<8> | FIO<7> OPS<6> FUN<5> CFG<4> | INT<3> RSP<2> CMD<1> DMA<0>\n");
487 + seq_printf(s, "-> echo 0 3 0x3ff >msdc_bebug -> host[3] debug zone set to 0x3ff\n");
488 + seq_printf(s, "-> MSDC[0] Zone: 0x%.8x\n", sd_debug_zone[0]);
489 + seq_printf(s, "-> MSDC[1] Zone: 0x%.8x\n", sd_debug_zone[1]);
490 + seq_printf(s, "-> MSDC[2] Zone: 0x%.8x\n", sd_debug_zone[2]);
491 + seq_printf(s, "-> MSDC[3] Zone: 0x%.8x\n", sd_debug_zone[3]);
492 +
493 + seq_printf(s, "Index<1> + ID:4|Mode:4 + DMA_SIZE\n");
494 + seq_printf(s, "-> 0)PIO 1)DMA 2)SIZE\n");
495 + seq_printf(s, "-> echo 1 22 0x200 >msdc_bebug -> host[2] size mode, dma when >= 512\n");
496 + seq_printf(s, "-> MSDC[0] mode<%d> size<%d>\n", drv_mode[0], dma_size[0]);
497 + seq_printf(s, "-> MSDC[1] mode<%d> size<%d>\n", drv_mode[1], dma_size[1]);
498 + seq_printf(s, "-> MSDC[2] mode<%d> size<%d>\n", drv_mode[2], dma_size[2]);
499 + seq_printf(s, "-> MSDC[3] mode<%d> size<%d>\n", drv_mode[3], dma_size[3]);
500 +
501 + seq_printf(s, "Index<3> + SDIO_PROFILE + TIME\n");
502 + seq_printf(s, "-> echo 3 1 0x1E >msdc_bebug -> enable sdio_profile, 30s\n");
503 + seq_printf(s, "-> SDIO_PROFILE<%d> TIME<%ds>\n", sdio_pro_enable, sdio_pro_time);
504 + seq_printf(s, "=========================================\n\n");
505 +
506 + return 0;
507 +}
508 +
509 +static ssize_t msdc_debug_proc_write(struct file *file,
510 + const char __user *buf, size_t count, loff_t *data)
511 +{
512 + int ret;
513 +
514 + int cmd, p1, p2;
515 + int id, zone;
516 + int mode, size;
517 +
518 + if (count == 0)return -1;
519 + if(count > 255)count = 255;
520 +
521 + ret = copy_from_user(cmd_buf, buf, count);
522 + if (ret < 0)return -1;
523 +
524 + cmd_buf[count] = '\0';
525 + printk("msdc Write %s\n", cmd_buf);
526 +
527 + sscanf(cmd_buf, "%x %x %x", &cmd, &p1, &p2);
528 +
529 + if(cmd == SD_TOOL_ZONE) {
530 + id = p1; zone = p2; zone &= 0x3ff;
531 + printk("msdc host_id<%d> zone<0x%.8x>\n", id, zone);
532 + if(id >=0 && id<=3){
533 + sd_debug_zone[id] = zone;
534 + }
535 + else if(id == 4){
536 + sd_debug_zone[0] = sd_debug_zone[1] = zone;
537 + sd_debug_zone[2] = sd_debug_zone[3] = zone;
538 + }
539 + else{
540 + printk("msdc host_id error when set debug zone\n");
541 + }
542 + } else if (cmd == SD_TOOL_DMA_SIZE) {
543 + id = p1>>4; mode = (p1&0xf); size = p2;
544 + if(id >=0 && id<=3){
545 + drv_mode[id] = mode;
546 + dma_size[id] = p2;
547 + }
548 + else if(id == 4){
549 + drv_mode[0] = drv_mode[1] = mode;
550 + drv_mode[2] = drv_mode[3] = mode;
551 + dma_size[0] = dma_size[1] = p2;
552 + dma_size[2] = dma_size[3] = p2;
553 + }
554 + else{
555 + printk("msdc host_id error when select mode\n");
556 + }
557 + } else if (cmd == SD_TOOL_SDIO_PROFILE) {
558 + if (p1 == 1) { /* enable profile */
559 + if (gpt_enable == 0) {
560 + // msdc_init_gpt(); /* --- by chhung */
561 + gpt_enable = 1;
562 + }
563 + sdio_pro_enable = 1;
564 + if (p2 == 0) p2 = 1; if (p2 >= 30) p2 = 30;
565 + sdio_pro_time = p2 ;
566 + } else if (p1 == 0) {
567 + /* todo */
568 + sdio_pro_enable = 0;
569 + }
570 + }
571 +
572 + return count;
573 +}
574 +
575 +static int msdc_debug_show(struct inode *inode, struct file *file)
576 +{
577 + return single_open(file, msdc_debug_proc_read, NULL);
578 +}
579 +
580 +static const struct file_operations msdc_debug_fops = {
581 + .owner = THIS_MODULE,
582 + .open = msdc_debug_show,
583 + .read = seq_read,
584 + .write = msdc_debug_proc_write,
585 + .llseek = seq_lseek,
586 + .release = single_release,
587 +};
588 +
589 +int msdc_debug_proc_init(void)
590 +{
591 + struct proc_dir_entry *de = proc_create("msdc_debug", 0667, NULL, &msdc_debug_fops);
592 +
593 + if (!de || IS_ERR(de))
594 + printk("!! Create MSDC debug PROC fail !!\n");
595 +
596 + return 0 ;
597 +}
598 +EXPORT_SYMBOL_GPL(msdc_debug_proc_init);
599 +#endif
600 --- /dev/null
601 +++ b/drivers/mmc/host/mtk-mmc/dbg.h
602 @@ -0,0 +1,156 @@
603 +/* Copyright Statement:
604 + *
605 + * This software/firmware and related documentation ("MediaTek Software") are
606 + * protected under relevant copyright laws. The information contained herein
607 + * is confidential and proprietary to MediaTek Inc. and/or its licensors.
608 + * Without the prior written permission of MediaTek inc. and/or its licensors,
609 + * any reproduction, modification, use or disclosure of MediaTek Software,
610 + * and information contained herein, in whole or in part, shall be strictly prohibited.
611 + *
612 + * MediaTek Inc. (C) 2010. All rights reserved.
613 + *
614 + * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
615 + * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
616 + * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
617 + * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
618 + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
619 + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
620 + * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
621 + * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
622 + * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
623 + * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
624 + * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
625 + * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
626 + * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
627 + * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
628 + * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
629 + * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
630 + * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
631 + * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
632 + *
633 + * The following software/firmware and/or related documentation ("MediaTek Software")
634 + * have been modified by MediaTek Inc. All revisions are subject to any receiver's
635 + * applicable license agreements with MediaTek Inc.
636 + */
637 +#ifndef __MT_MSDC_DEUBG__
638 +#define __MT_MSDC_DEUBG__
639 +
640 +//==========================
641 +extern u32 sdio_pro_enable;
642 +/* for a type command, e.g. CMD53, 2 blocks */
643 +struct cmd_profile {
644 + u32 max_tc; /* Max tick count */
645 + u32 min_tc;
646 + u32 tot_tc; /* total tick count */
647 + u32 tot_bytes;
648 + u32 count; /* the counts of the command */
649 +};
650 +
651 +/* dump when total_tc and total_bytes */
652 +struct sdio_profile {
653 + u32 total_tc; /* total tick count of CMD52 and CMD53 */
654 + u32 total_tx_bytes; /* total bytes of CMD53 Tx */
655 + u32 total_rx_bytes; /* total bytes of CMD53 Rx */
656 +
657 + /*CMD52*/
658 + struct cmd_profile cmd52_tx;
659 + struct cmd_profile cmd52_rx;
660 +
661 + /*CMD53 in byte unit */
662 + struct cmd_profile cmd53_tx_byte[512];
663 + struct cmd_profile cmd53_rx_byte[512];
664 +
665 + /*CMD53 in block unit */
666 + struct cmd_profile cmd53_tx_blk[100];
667 + struct cmd_profile cmd53_rx_blk[100];
668 +};
669 +
670 +//==========================
671 +typedef enum {
672 + SD_TOOL_ZONE = 0,
673 + SD_TOOL_DMA_SIZE = 1,
674 + SD_TOOL_PM_ENABLE = 2,
675 + SD_TOOL_SDIO_PROFILE = 3,
676 +} msdc_dbg;
677 +
678 +typedef enum {
679 + MODE_PIO = 0,
680 + MODE_DMA = 1,
681 + MODE_SIZE_DEP = 2,
682 +} msdc_mode;
683 +extern msdc_mode drv_mode[4];
684 +extern u32 dma_size[4];
685 +
686 +/* Debug message event */
687 +#define DBG_EVT_NONE (0) /* No event */
688 +#define DBG_EVT_DMA (1 << 0) /* DMA related event */
689 +#define DBG_EVT_CMD (1 << 1) /* MSDC CMD related event */
690 +#define DBG_EVT_RSP (1 << 2) /* MSDC CMD RSP related event */
691 +#define DBG_EVT_INT (1 << 3) /* MSDC INT event */
692 +#define DBG_EVT_CFG (1 << 4) /* MSDC CFG event */
693 +#define DBG_EVT_FUC (1 << 5) /* Function event */
694 +#define DBG_EVT_OPS (1 << 6) /* Read/Write operation event */
695 +#define DBG_EVT_FIO (1 << 7) /* FIFO operation event */
696 +#define DBG_EVT_WRN (1 << 8) /* Warning event */
697 +#define DBG_EVT_PWR (1 << 9) /* Power event */
698 +#define DBG_EVT_ALL (0xffffffff)
699 +
700 +#define DBG_EVT_MASK (DBG_EVT_ALL)
701 +
702 +extern unsigned int sd_debug_zone[4];
703 +#define TAG "msdc"
704 +#if 0 /* +++ chhung */
705 +#define BUG_ON(x) \
706 +do { \
707 + if (x) { \
708 + printk("[BUG] %s LINE:%d FILE:%s\n", #x, __LINE__, __FILE__); \
709 + while(1); \
710 + } \
711 +}while(0)
712 +#endif /* end of +++ */
713 +
714 +#define N_MSG(evt, fmt, args...)
715 +/*
716 +do { \
717 + if ((DBG_EVT_##evt) & sd_debug_zone[host->id]) { \
718 + printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d> PID<%s><0x%x>\n", \
719 + host->id, ##args , __FUNCTION__, __LINE__, current->comm, current->pid); \
720 + } \
721 +} while(0)
722 +*/
723 +
724 +#define ERR_MSG(fmt, args...) \
725 +do { \
726 + printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d> PID<%s><0x%x>\n", \
727 + host->id, ##args , __FUNCTION__, __LINE__, current->comm, current->pid); \
728 +} while(0);
729 +
730 +#if 1
731 +//defined CONFIG_MTK_MMC_CD_POLL
732 +#define INIT_MSG(fmt, args...)
733 +#define IRQ_MSG(fmt, args...)
734 +#else
735 +#define INIT_MSG(fmt, args...) \
736 +do { \
737 + printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d> PID<%s><0x%x>\n", \
738 + host->id, ##args , __FUNCTION__, __LINE__, current->comm, current->pid); \
739 +} while(0);
740 +
741 +/* PID in ISR in not corrent */
742 +#define IRQ_MSG(fmt, args...) \
743 +do { \
744 + printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d>\n", \
745 + host->id, ##args , __FUNCTION__, __LINE__); \
746 +} while(0);
747 +#endif
748 +
749 +int msdc_debug_proc_init(void);
750 +
751 +#if 0 /* --- chhung */
752 +void msdc_init_gpt(void);
753 +extern void GPT_GetCounter64(UINT32 *cntL32, UINT32 *cntH32);
754 +#endif /* end of --- */
755 +u32 msdc_time_calc(u32 old_L32, u32 old_H32, u32 new_L32, u32 new_H32);
756 +void msdc_performance(u32 opcode, u32 sizes, u32 bRx, u32 ticks);
757 +
758 +#endif
759 --- /dev/null
760 +++ b/drivers/mmc/host/mtk-mmc/mt6575_sd.h
761 @@ -0,0 +1,1001 @@
762 +/* Copyright Statement:
763 + *
764 + * This software/firmware and related documentation ("MediaTek Software") are
765 + * protected under relevant copyright laws. The information contained herein
766 + * is confidential and proprietary to MediaTek Inc. and/or its licensors.
767 + * Without the prior written permission of MediaTek inc. and/or its licensors,
768 + * any reproduction, modification, use or disclosure of MediaTek Software,
769 + * and information contained herein, in whole or in part, shall be strictly prohibited.
770 + */
771 +/* MediaTek Inc. (C) 2010. All rights reserved.
772 + *
773 + * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
774 + * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
775 + * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
776 + * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
777 + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
778 + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
779 + * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
780 + * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
781 + * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
782 + * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
783 + * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
784 + * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
785 + * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
786 + * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
787 + * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
788 + * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
789 + * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
790 + * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
791 + *
792 + * The following software/firmware and/or related documentation ("MediaTek Software")
793 + * have been modified by MediaTek Inc. All revisions are subject to any receiver's
794 + * applicable license agreements with MediaTek Inc.
795 + */
796 +
797 +#ifndef MT6575_SD_H
798 +#define MT6575_SD_H
799 +
800 +#include <linux/bitops.h>
801 +#include <linux/mmc/host.h>
802 +
803 +// #include <mach/mt6575_reg_base.h> /* --- by chhung */
804 +
805 +/*--------------------------------------------------------------------------*/
806 +/* Common Macro */
807 +/*--------------------------------------------------------------------------*/
808 +#define REG_ADDR(x) ((volatile u32*)(base + OFFSET_##x))
809 +
810 +/*--------------------------------------------------------------------------*/
811 +/* Common Definition */
812 +/*--------------------------------------------------------------------------*/
813 +#define MSDC_FIFO_SZ (128)
814 +#define MSDC_FIFO_THD (64) // (128)
815 +#define MSDC_NUM (4)
816 +
817 +#define MSDC_MS (0)
818 +#define MSDC_SDMMC (1)
819 +
820 +#define MSDC_MODE_UNKNOWN (0)
821 +#define MSDC_MODE_PIO (1)
822 +#define MSDC_MODE_DMA_BASIC (2)
823 +#define MSDC_MODE_DMA_DESC (3)
824 +#define MSDC_MODE_DMA_ENHANCED (4)
825 +#define MSDC_MODE_MMC_STREAM (5)
826 +
827 +#define MSDC_BUS_1BITS (0)
828 +#define MSDC_BUS_4BITS (1)
829 +#define MSDC_BUS_8BITS (2)
830 +
831 +#define MSDC_BRUST_8B (3)
832 +#define MSDC_BRUST_16B (4)
833 +#define MSDC_BRUST_32B (5)
834 +#define MSDC_BRUST_64B (6)
835 +
836 +#define MSDC_PIN_PULL_NONE (0)
837 +#define MSDC_PIN_PULL_DOWN (1)
838 +#define MSDC_PIN_PULL_UP (2)
839 +#define MSDC_PIN_KEEP (3)
840 +
841 +#define MSDC_MAX_SCLK (48000000) /* +/- by chhung */
842 +#define MSDC_MIN_SCLK (260000)
843 +
844 +#define MSDC_AUTOCMD12 (0x0001)
845 +#define MSDC_AUTOCMD23 (0x0002)
846 +#define MSDC_AUTOCMD19 (0x0003)
847 +
848 +#define MSDC_EMMC_BOOTMODE0 (0) /* Pull low CMD mode */
849 +#define MSDC_EMMC_BOOTMODE1 (1) /* Reset CMD mode */
850 +
851 +enum {
852 + RESP_NONE = 0,
853 + RESP_R1,
854 + RESP_R2,
855 + RESP_R3,
856 + RESP_R4,
857 + RESP_R5,
858 + RESP_R6,
859 + RESP_R7,
860 + RESP_R1B
861 +};
862 +
863 +/*--------------------------------------------------------------------------*/
864 +/* Register Offset */
865 +/*--------------------------------------------------------------------------*/
866 +#define OFFSET_MSDC_CFG (0x0)
867 +#define OFFSET_MSDC_IOCON (0x04)
868 +#define OFFSET_MSDC_PS (0x08)
869 +#define OFFSET_MSDC_INT (0x0c)
870 +#define OFFSET_MSDC_INTEN (0x10)
871 +#define OFFSET_MSDC_FIFOCS (0x14)
872 +#define OFFSET_MSDC_TXDATA (0x18)
873 +#define OFFSET_MSDC_RXDATA (0x1c)
874 +#define OFFSET_SDC_CFG (0x30)
875 +#define OFFSET_SDC_CMD (0x34)
876 +#define OFFSET_SDC_ARG (0x38)
877 +#define OFFSET_SDC_STS (0x3c)
878 +#define OFFSET_SDC_RESP0 (0x40)
879 +#define OFFSET_SDC_RESP1 (0x44)
880 +#define OFFSET_SDC_RESP2 (0x48)
881 +#define OFFSET_SDC_RESP3 (0x4c)
882 +#define OFFSET_SDC_BLK_NUM (0x50)
883 +#define OFFSET_SDC_CSTS (0x58)
884 +#define OFFSET_SDC_CSTS_EN (0x5c)
885 +#define OFFSET_SDC_DCRC_STS (0x60)
886 +#define OFFSET_EMMC_CFG0 (0x70)
887 +#define OFFSET_EMMC_CFG1 (0x74)
888 +#define OFFSET_EMMC_STS (0x78)
889 +#define OFFSET_EMMC_IOCON (0x7c)
890 +#define OFFSET_SDC_ACMD_RESP (0x80)
891 +#define OFFSET_SDC_ACMD19_TRG (0x84)
892 +#define OFFSET_SDC_ACMD19_STS (0x88)
893 +#define OFFSET_MSDC_DMA_SA (0x90)
894 +#define OFFSET_MSDC_DMA_CA (0x94)
895 +#define OFFSET_MSDC_DMA_CTRL (0x98)
896 +#define OFFSET_MSDC_DMA_CFG (0x9c)
897 +#define OFFSET_MSDC_DBG_SEL (0xa0)
898 +#define OFFSET_MSDC_DBG_OUT (0xa4)
899 +#define OFFSET_MSDC_PATCH_BIT (0xb0)
900 +#define OFFSET_MSDC_PATCH_BIT1 (0xb4)
901 +#define OFFSET_MSDC_PAD_CTL0 (0xe0)
902 +#define OFFSET_MSDC_PAD_CTL1 (0xe4)
903 +#define OFFSET_MSDC_PAD_CTL2 (0xe8)
904 +#define OFFSET_MSDC_PAD_TUNE (0xec)
905 +#define OFFSET_MSDC_DAT_RDDLY0 (0xf0)
906 +#define OFFSET_MSDC_DAT_RDDLY1 (0xf4)
907 +#define OFFSET_MSDC_HW_DBG (0xf8)
908 +#define OFFSET_MSDC_VERSION (0x100)
909 +#define OFFSET_MSDC_ECO_VER (0x104)
910 +
911 +/*--------------------------------------------------------------------------*/
912 +/* Register Address */
913 +/*--------------------------------------------------------------------------*/
914 +
915 +/* common register */
916 +#define MSDC_CFG REG_ADDR(MSDC_CFG)
917 +#define MSDC_IOCON REG_ADDR(MSDC_IOCON)
918 +#define MSDC_PS REG_ADDR(MSDC_PS)
919 +#define MSDC_INT REG_ADDR(MSDC_INT)
920 +#define MSDC_INTEN REG_ADDR(MSDC_INTEN)
921 +#define MSDC_FIFOCS REG_ADDR(MSDC_FIFOCS)
922 +#define MSDC_TXDATA REG_ADDR(MSDC_TXDATA)
923 +#define MSDC_RXDATA REG_ADDR(MSDC_RXDATA)
924 +#define MSDC_PATCH_BIT0 REG_ADDR(MSDC_PATCH_BIT)
925 +
926 +/* sdmmc register */
927 +#define SDC_CFG REG_ADDR(SDC_CFG)
928 +#define SDC_CMD REG_ADDR(SDC_CMD)
929 +#define SDC_ARG REG_ADDR(SDC_ARG)
930 +#define SDC_STS REG_ADDR(SDC_STS)
931 +#define SDC_RESP0 REG_ADDR(SDC_RESP0)
932 +#define SDC_RESP1 REG_ADDR(SDC_RESP1)
933 +#define SDC_RESP2 REG_ADDR(SDC_RESP2)
934 +#define SDC_RESP3 REG_ADDR(SDC_RESP3)
935 +#define SDC_BLK_NUM REG_ADDR(SDC_BLK_NUM)
936 +#define SDC_CSTS REG_ADDR(SDC_CSTS)
937 +#define SDC_CSTS_EN REG_ADDR(SDC_CSTS_EN)
938 +#define SDC_DCRC_STS REG_ADDR(SDC_DCRC_STS)
939 +
940 +/* emmc register*/
941 +#define EMMC_CFG0 REG_ADDR(EMMC_CFG0)
942 +#define EMMC_CFG1 REG_ADDR(EMMC_CFG1)
943 +#define EMMC_STS REG_ADDR(EMMC_STS)
944 +#define EMMC_IOCON REG_ADDR(EMMC_IOCON)
945 +
946 +/* auto command register */
947 +#define SDC_ACMD_RESP REG_ADDR(SDC_ACMD_RESP)
948 +#define SDC_ACMD19_TRG REG_ADDR(SDC_ACMD19_TRG)
949 +#define SDC_ACMD19_STS REG_ADDR(SDC_ACMD19_STS)
950 +
951 +/* dma register */
952 +#define MSDC_DMA_SA REG_ADDR(MSDC_DMA_SA)
953 +#define MSDC_DMA_CA REG_ADDR(MSDC_DMA_CA)
954 +#define MSDC_DMA_CTRL REG_ADDR(MSDC_DMA_CTRL)
955 +#define MSDC_DMA_CFG REG_ADDR(MSDC_DMA_CFG)
956 +
957 +/* pad ctrl register */
958 +#define MSDC_PAD_CTL0 REG_ADDR(MSDC_PAD_CTL0)
959 +#define MSDC_PAD_CTL1 REG_ADDR(MSDC_PAD_CTL1)
960 +#define MSDC_PAD_CTL2 REG_ADDR(MSDC_PAD_CTL2)
961 +
962 +/* data read delay */
963 +#define MSDC_DAT_RDDLY0 REG_ADDR(MSDC_DAT_RDDLY0)
964 +#define MSDC_DAT_RDDLY1 REG_ADDR(MSDC_DAT_RDDLY1)
965 +
966 +/* debug register */
967 +#define MSDC_DBG_SEL REG_ADDR(MSDC_DBG_SEL)
968 +#define MSDC_DBG_OUT REG_ADDR(MSDC_DBG_OUT)
969 +
970 +/* misc register */
971 +#define MSDC_PATCH_BIT REG_ADDR(MSDC_PATCH_BIT)
972 +#define MSDC_PATCH_BIT1 REG_ADDR(MSDC_PATCH_BIT1)
973 +#define MSDC_PAD_TUNE REG_ADDR(MSDC_PAD_TUNE)
974 +#define MSDC_HW_DBG REG_ADDR(MSDC_HW_DBG)
975 +#define MSDC_VERSION REG_ADDR(MSDC_VERSION)
976 +#define MSDC_ECO_VER REG_ADDR(MSDC_ECO_VER) /* ECO Version */
977 +
978 +/*--------------------------------------------------------------------------*/
979 +/* Register Mask */
980 +/*--------------------------------------------------------------------------*/
981 +
982 +/* MSDC_CFG mask */
983 +#define MSDC_CFG_MODE (0x1 << 0) /* RW */
984 +#define MSDC_CFG_CKPDN (0x1 << 1) /* RW */
985 +#define MSDC_CFG_RST (0x1 << 2) /* RW */
986 +#define MSDC_CFG_PIO (0x1 << 3) /* RW */
987 +#define MSDC_CFG_CKDRVEN (0x1 << 4) /* RW */
988 +#define MSDC_CFG_BV18SDT (0x1 << 5) /* RW */
989 +#define MSDC_CFG_BV18PSS (0x1 << 6) /* R */
990 +#define MSDC_CFG_CKSTB (0x1 << 7) /* R */
991 +#define MSDC_CFG_CKDIV (0xff << 8) /* RW */
992 +#define MSDC_CFG_CKMOD (0x3 << 16) /* RW */
993 +
994 +/* MSDC_IOCON mask */
995 +#define MSDC_IOCON_SDR104CKS (0x1 << 0) /* RW */
996 +#define MSDC_IOCON_RSPL (0x1 << 1) /* RW */
997 +#define MSDC_IOCON_DSPL (0x1 << 2) /* RW */
998 +#define MSDC_IOCON_DDLSEL (0x1 << 3) /* RW */
999 +#define MSDC_IOCON_DDR50CKD (0x1 << 4) /* RW */
1000 +#define MSDC_IOCON_DSPLSEL (0x1 << 5) /* RW */
1001 +#define MSDC_IOCON_D0SPL (0x1 << 16) /* RW */
1002 +#define MSDC_IOCON_D1SPL (0x1 << 17) /* RW */
1003 +#define MSDC_IOCON_D2SPL (0x1 << 18) /* RW */
1004 +#define MSDC_IOCON_D3SPL (0x1 << 19) /* RW */
1005 +#define MSDC_IOCON_D4SPL (0x1 << 20) /* RW */
1006 +#define MSDC_IOCON_D5SPL (0x1 << 21) /* RW */
1007 +#define MSDC_IOCON_D6SPL (0x1 << 22) /* RW */
1008 +#define MSDC_IOCON_D7SPL (0x1 << 23) /* RW */
1009 +#define MSDC_IOCON_RISCSZ (0x3 << 24) /* RW */
1010 +
1011 +/* MSDC_PS mask */
1012 +#define MSDC_PS_CDEN (0x1 << 0) /* RW */
1013 +#define MSDC_PS_CDSTS (0x1 << 1) /* R */
1014 +#define MSDC_PS_CDDEBOUNCE (0xf << 12) /* RW */
1015 +#define MSDC_PS_DAT (0xff << 16) /* R */
1016 +#define MSDC_PS_CMD (0x1 << 24) /* R */
1017 +#define MSDC_PS_WP (0x1UL<< 31) /* R */
1018 +
1019 +/* MSDC_INT mask */
1020 +#define MSDC_INT_MMCIRQ (0x1 << 0) /* W1C */
1021 +#define MSDC_INT_CDSC (0x1 << 1) /* W1C */
1022 +#define MSDC_INT_ACMDRDY (0x1 << 3) /* W1C */
1023 +#define MSDC_INT_ACMDTMO (0x1 << 4) /* W1C */
1024 +#define MSDC_INT_ACMDCRCERR (0x1 << 5) /* W1C */
1025 +#define MSDC_INT_DMAQ_EMPTY (0x1 << 6) /* W1C */
1026 +#define MSDC_INT_SDIOIRQ (0x1 << 7) /* W1C */
1027 +#define MSDC_INT_CMDRDY (0x1 << 8) /* W1C */
1028 +#define MSDC_INT_CMDTMO (0x1 << 9) /* W1C */
1029 +#define MSDC_INT_RSPCRCERR (0x1 << 10) /* W1C */
1030 +#define MSDC_INT_CSTA (0x1 << 11) /* R */
1031 +#define MSDC_INT_XFER_COMPL (0x1 << 12) /* W1C */
1032 +#define MSDC_INT_DXFER_DONE (0x1 << 13) /* W1C */
1033 +#define MSDC_INT_DATTMO (0x1 << 14) /* W1C */
1034 +#define MSDC_INT_DATCRCERR (0x1 << 15) /* W1C */
1035 +#define MSDC_INT_ACMD19_DONE (0x1 << 16) /* W1C */
1036 +
1037 +/* MSDC_INTEN mask */
1038 +#define MSDC_INTEN_MMCIRQ (0x1 << 0) /* RW */
1039 +#define MSDC_INTEN_CDSC (0x1 << 1) /* RW */
1040 +#define MSDC_INTEN_ACMDRDY (0x1 << 3) /* RW */
1041 +#define MSDC_INTEN_ACMDTMO (0x1 << 4) /* RW */
1042 +#define MSDC_INTEN_ACMDCRCERR (0x1 << 5) /* RW */
1043 +#define MSDC_INTEN_DMAQ_EMPTY (0x1 << 6) /* RW */
1044 +#define MSDC_INTEN_SDIOIRQ (0x1 << 7) /* RW */
1045 +#define MSDC_INTEN_CMDRDY (0x1 << 8) /* RW */
1046 +#define MSDC_INTEN_CMDTMO (0x1 << 9) /* RW */
1047 +#define MSDC_INTEN_RSPCRCERR (0x1 << 10) /* RW */
1048 +#define MSDC_INTEN_CSTA (0x1 << 11) /* RW */
1049 +#define MSDC_INTEN_XFER_COMPL (0x1 << 12) /* RW */
1050 +#define MSDC_INTEN_DXFER_DONE (0x1 << 13) /* RW */
1051 +#define MSDC_INTEN_DATTMO (0x1 << 14) /* RW */
1052 +#define MSDC_INTEN_DATCRCERR (0x1 << 15) /* RW */
1053 +#define MSDC_INTEN_ACMD19_DONE (0x1 << 16) /* RW */
1054 +
1055 +/* MSDC_FIFOCS mask */
1056 +#define MSDC_FIFOCS_RXCNT (0xff << 0) /* R */
1057 +#define MSDC_FIFOCS_TXCNT (0xff << 16) /* R */
1058 +#define MSDC_FIFOCS_CLR (0x1UL<< 31) /* RW */
1059 +
1060 +/* SDC_CFG mask */
1061 +#define SDC_CFG_SDIOINTWKUP (0x1 << 0) /* RW */
1062 +#define SDC_CFG_INSWKUP (0x1 << 1) /* RW */
1063 +#define SDC_CFG_BUSWIDTH (0x3 << 16) /* RW */
1064 +#define SDC_CFG_SDIO (0x1 << 19) /* RW */
1065 +#define SDC_CFG_SDIOIDE (0x1 << 20) /* RW */
1066 +#define SDC_CFG_INTATGAP (0x1 << 21) /* RW */
1067 +#define SDC_CFG_DTOC (0xffUL << 24) /* RW */
1068 +
1069 +/* SDC_CMD mask */
1070 +#define SDC_CMD_OPC (0x3f << 0) /* RW */
1071 +#define SDC_CMD_BRK (0x1 << 6) /* RW */
1072 +#define SDC_CMD_RSPTYP (0x7 << 7) /* RW */
1073 +#define SDC_CMD_DTYP (0x3 << 11) /* RW */
1074 +#define SDC_CMD_DTYP (0x3 << 11) /* RW */
1075 +#define SDC_CMD_RW (0x1 << 13) /* RW */
1076 +#define SDC_CMD_STOP (0x1 << 14) /* RW */
1077 +#define SDC_CMD_GOIRQ (0x1 << 15) /* RW */
1078 +#define SDC_CMD_BLKLEN (0xfff<< 16) /* RW */
1079 +#define SDC_CMD_AUTOCMD (0x3 << 28) /* RW */
1080 +#define SDC_CMD_VOLSWTH (0x1 << 30) /* RW */
1081 +
1082 +/* SDC_STS mask */
1083 +#define SDC_STS_SDCBUSY (0x1 << 0) /* RW */
1084 +#define SDC_STS_CMDBUSY (0x1 << 1) /* RW */
1085 +#define SDC_STS_SWR_COMPL (0x1 << 31) /* RW */
1086 +
1087 +/* SDC_DCRC_STS mask */
1088 +#define SDC_DCRC_STS_NEG (0xf << 8) /* RO */
1089 +#define SDC_DCRC_STS_POS (0xff << 0) /* RO */
1090 +
1091 +/* EMMC_CFG0 mask */
1092 +#define EMMC_CFG0_BOOTSTART (0x1 << 0) /* W */
1093 +#define EMMC_CFG0_BOOTSTOP (0x1 << 1) /* W */
1094 +#define EMMC_CFG0_BOOTMODE (0x1 << 2) /* RW */
1095 +#define EMMC_CFG0_BOOTACKDIS (0x1 << 3) /* RW */
1096 +#define EMMC_CFG0_BOOTWDLY (0x7 << 12) /* RW */
1097 +#define EMMC_CFG0_BOOTSUPP (0x1 << 15) /* RW */
1098 +
1099 +/* EMMC_CFG1 mask */
1100 +#define EMMC_CFG1_BOOTDATTMC (0xfffff << 0) /* RW */
1101 +#define EMMC_CFG1_BOOTACKTMC (0xfffUL << 20) /* RW */
1102 +
1103 +/* EMMC_STS mask */
1104 +#define EMMC_STS_BOOTCRCERR (0x1 << 0) /* W1C */
1105 +#define EMMC_STS_BOOTACKERR (0x1 << 1) /* W1C */
1106 +#define EMMC_STS_BOOTDATTMO (0x1 << 2) /* W1C */
1107 +#define EMMC_STS_BOOTACKTMO (0x1 << 3) /* W1C */
1108 +#define EMMC_STS_BOOTUPSTATE (0x1 << 4) /* R */
1109 +#define EMMC_STS_BOOTACKRCV (0x1 << 5) /* W1C */
1110 +#define EMMC_STS_BOOTDATRCV (0x1 << 6) /* R */
1111 +
1112 +/* EMMC_IOCON mask */
1113 +#define EMMC_IOCON_BOOTRST (0x1 << 0) /* RW */
1114 +
1115 +/* SDC_ACMD19_TRG mask */
1116 +#define SDC_ACMD19_TRG_TUNESEL (0xf << 0) /* RW */
1117 +
1118 +/* MSDC_DMA_CTRL mask */
1119 +#define MSDC_DMA_CTRL_START (0x1 << 0) /* W */
1120 +#define MSDC_DMA_CTRL_STOP (0x1 << 1) /* W */
1121 +#define MSDC_DMA_CTRL_RESUME (0x1 << 2) /* W */
1122 +#define MSDC_DMA_CTRL_MODE (0x1 << 8) /* RW */
1123 +#define MSDC_DMA_CTRL_LASTBUF (0x1 << 10) /* RW */
1124 +#define MSDC_DMA_CTRL_BRUSTSZ (0x7 << 12) /* RW */
1125 +#define MSDC_DMA_CTRL_XFERSZ (0xffffUL << 16)/* RW */
1126 +
1127 +/* MSDC_DMA_CFG mask */
1128 +#define MSDC_DMA_CFG_STS (0x1 << 0) /* R */
1129 +#define MSDC_DMA_CFG_DECSEN (0x1 << 1) /* RW */
1130 +#define MSDC_DMA_CFG_BDCSERR (0x1 << 4) /* R */
1131 +#define MSDC_DMA_CFG_GPDCSERR (0x1 << 5) /* R */
1132 +
1133 +/* MSDC_PATCH_BIT mask */
1134 +#define MSDC_PATCH_BIT_WFLSMODE (0x1 << 0) /* RW */
1135 +#define MSDC_PATCH_BIT_ODDSUPP (0x1 << 1) /* RW */
1136 +#define MSDC_PATCH_BIT_CKGEN_CK (0x1 << 6) /* E2: Fixed to 1 */
1137 +#define MSDC_PATCH_BIT_IODSSEL (0x1 << 16) /* RW */
1138 +#define MSDC_PATCH_BIT_IOINTSEL (0x1 << 17) /* RW */
1139 +#define MSDC_PATCH_BIT_BUSYDLY (0xf << 18) /* RW */
1140 +#define MSDC_PATCH_BIT_WDOD (0xf << 22) /* RW */
1141 +#define MSDC_PATCH_BIT_IDRTSEL (0x1 << 26) /* RW */
1142 +#define MSDC_PATCH_BIT_CMDFSEL (0x1 << 27) /* RW */
1143 +#define MSDC_PATCH_BIT_INTDLSEL (0x1 << 28) /* RW */
1144 +#define MSDC_PATCH_BIT_SPCPUSH (0x1 << 29) /* RW */
1145 +#define MSDC_PATCH_BIT_DECRCTMO (0x1 << 30) /* RW */
1146 +
1147 +/* MSDC_PATCH_BIT1 mask */
1148 +#define MSDC_PATCH_BIT1_WRDAT_CRCS (0x7 << 3)
1149 +#define MSDC_PATCH_BIT1_CMD_RSP (0x7 << 0)
1150 +
1151 +/* MSDC_PAD_CTL0 mask */
1152 +#define MSDC_PAD_CTL0_CLKDRVN (0x7 << 0) /* RW */
1153 +#define MSDC_PAD_CTL0_CLKDRVP (0x7 << 4) /* RW */
1154 +#define MSDC_PAD_CTL0_CLKSR (0x1 << 8) /* RW */
1155 +#define MSDC_PAD_CTL0_CLKPD (0x1 << 16) /* RW */
1156 +#define MSDC_PAD_CTL0_CLKPU (0x1 << 17) /* RW */
1157 +#define MSDC_PAD_CTL0_CLKSMT (0x1 << 18) /* RW */
1158 +#define MSDC_PAD_CTL0_CLKIES (0x1 << 19) /* RW */
1159 +#define MSDC_PAD_CTL0_CLKTDSEL (0xf << 20) /* RW */
1160 +#define MSDC_PAD_CTL0_CLKRDSEL (0xffUL<< 24) /* RW */
1161 +
1162 +/* MSDC_PAD_CTL1 mask */
1163 +#define MSDC_PAD_CTL1_CMDDRVN (0x7 << 0) /* RW */
1164 +#define MSDC_PAD_CTL1_CMDDRVP (0x7 << 4) /* RW */
1165 +#define MSDC_PAD_CTL1_CMDSR (0x1 << 8) /* RW */
1166 +#define MSDC_PAD_CTL1_CMDPD (0x1 << 16) /* RW */
1167 +#define MSDC_PAD_CTL1_CMDPU (0x1 << 17) /* RW */
1168 +#define MSDC_PAD_CTL1_CMDSMT (0x1 << 18) /* RW */
1169 +#define MSDC_PAD_CTL1_CMDIES (0x1 << 19) /* RW */
1170 +#define MSDC_PAD_CTL1_CMDTDSEL (0xf << 20) /* RW */
1171 +#define MSDC_PAD_CTL1_CMDRDSEL (0xffUL<< 24) /* RW */
1172 +
1173 +/* MSDC_PAD_CTL2 mask */
1174 +#define MSDC_PAD_CTL2_DATDRVN (0x7 << 0) /* RW */
1175 +#define MSDC_PAD_CTL2_DATDRVP (0x7 << 4) /* RW */
1176 +#define MSDC_PAD_CTL2_DATSR (0x1 << 8) /* RW */
1177 +#define MSDC_PAD_CTL2_DATPD (0x1 << 16) /* RW */
1178 +#define MSDC_PAD_CTL2_DATPU (0x1 << 17) /* RW */
1179 +#define MSDC_PAD_CTL2_DATIES (0x1 << 19) /* RW */
1180 +#define MSDC_PAD_CTL2_DATSMT (0x1 << 18) /* RW */
1181 +#define MSDC_PAD_CTL2_DATTDSEL (0xf << 20) /* RW */
1182 +#define MSDC_PAD_CTL2_DATRDSEL (0xffUL<< 24) /* RW */
1183 +
1184 +/* MSDC_PAD_TUNE mask */
1185 +#define MSDC_PAD_TUNE_DATWRDLY (0x1F << 0) /* RW */
1186 +#define MSDC_PAD_TUNE_DATRRDLY (0x1F << 8) /* RW */
1187 +#define MSDC_PAD_TUNE_CMDRDLY (0x1F << 16) /* RW */
1188 +#define MSDC_PAD_TUNE_CMDRRDLY (0x1FUL << 22) /* RW */
1189 +#define MSDC_PAD_TUNE_CLKTXDLY (0x1FUL << 27) /* RW */
1190 +
1191 +/* MSDC_DAT_RDDLY0/1 mask */
1192 +#define MSDC_DAT_RDDLY0_D0 (0x1F << 0) /* RW */
1193 +#define MSDC_DAT_RDDLY0_D1 (0x1F << 8) /* RW */
1194 +#define MSDC_DAT_RDDLY0_D2 (0x1F << 16) /* RW */
1195 +#define MSDC_DAT_RDDLY0_D3 (0x1F << 24) /* RW */
1196 +
1197 +#define MSDC_DAT_RDDLY1_D4 (0x1F << 0) /* RW */
1198 +#define MSDC_DAT_RDDLY1_D5 (0x1F << 8) /* RW */
1199 +#define MSDC_DAT_RDDLY1_D6 (0x1F << 16) /* RW */
1200 +#define MSDC_DAT_RDDLY1_D7 (0x1F << 24) /* RW */
1201 +
1202 +#define MSDC_CKGEN_MSDC_DLY_SEL (0x1F<<10)
1203 +#define MSDC_INT_DAT_LATCH_CK_SEL (0x7<<7)
1204 +#define MSDC_CKGEN_MSDC_CK_SEL (0x1<<6)
1205 +#define CARD_READY_FOR_DATA (1<<8)
1206 +#define CARD_CURRENT_STATE(x) ((x&0x00001E00)>>9)
1207 +
1208 +/*--------------------------------------------------------------------------*/
1209 +/* Descriptor Structure */
1210 +/*--------------------------------------------------------------------------*/
1211 +typedef struct {
1212 + u32 hwo:1; /* could be changed by hw */
1213 + u32 bdp:1;
1214 + u32 rsv0:6;
1215 + u32 chksum:8;
1216 + u32 intr:1;
1217 + u32 rsv1:15;
1218 + void *next;
1219 + void *ptr;
1220 + u32 buflen:16;
1221 + u32 extlen:8;
1222 + u32 rsv2:8;
1223 + u32 arg;
1224 + u32 blknum;
1225 + u32 cmd;
1226 +} gpd_t;
1227 +
1228 +typedef struct {
1229 + u32 eol:1;
1230 + u32 rsv0:7;
1231 + u32 chksum:8;
1232 + u32 rsv1:1;
1233 + u32 blkpad:1;
1234 + u32 dwpad:1;
1235 + u32 rsv2:13;
1236 + void *next;
1237 + void *ptr;
1238 + u32 buflen:16;
1239 + u32 rsv3:16;
1240 +} bd_t;
1241 +
1242 +/*--------------------------------------------------------------------------*/
1243 +/* Register Debugging Structure */
1244 +/*--------------------------------------------------------------------------*/
1245 +
1246 +typedef struct {
1247 + u32 msdc:1;
1248 + u32 ckpwn:1;
1249 + u32 rst:1;
1250 + u32 pio:1;
1251 + u32 ckdrven:1;
1252 + u32 start18v:1;
1253 + u32 pass18v:1;
1254 + u32 ckstb:1;
1255 + u32 ckdiv:8;
1256 + u32 ckmod:2;
1257 + u32 pad:14;
1258 +} msdc_cfg_reg;
1259 +typedef struct {
1260 + u32 sdr104cksel:1;
1261 + u32 rsmpl:1;
1262 + u32 dsmpl:1;
1263 + u32 ddlysel:1;
1264 + u32 ddr50ckd:1;
1265 + u32 dsplsel:1;
1266 + u32 pad1:10;
1267 + u32 d0spl:1;
1268 + u32 d1spl:1;
1269 + u32 d2spl:1;
1270 + u32 d3spl:1;
1271 + u32 d4spl:1;
1272 + u32 d5spl:1;
1273 + u32 d6spl:1;
1274 + u32 d7spl:1;
1275 + u32 riscsz:1;
1276 + u32 pad2:7;
1277 +} msdc_iocon_reg;
1278 +typedef struct {
1279 + u32 cden:1;
1280 + u32 cdsts:1;
1281 + u32 pad1:10;
1282 + u32 cddebounce:4;
1283 + u32 dat:8;
1284 + u32 cmd:1;
1285 + u32 pad2:6;
1286 + u32 wp:1;
1287 +} msdc_ps_reg;
1288 +typedef struct {
1289 + u32 mmcirq:1;
1290 + u32 cdsc:1;
1291 + u32 pad1:1;
1292 + u32 atocmdrdy:1;
1293 + u32 atocmdtmo:1;
1294 + u32 atocmdcrc:1;
1295 + u32 dmaqempty:1;
1296 + u32 sdioirq:1;
1297 + u32 cmdrdy:1;
1298 + u32 cmdtmo:1;
1299 + u32 rspcrc:1;
1300 + u32 csta:1;
1301 + u32 xfercomp:1;
1302 + u32 dxferdone:1;
1303 + u32 dattmo:1;
1304 + u32 datcrc:1;
1305 + u32 atocmd19done:1;
1306 + u32 pad2:15;
1307 +} msdc_int_reg;
1308 +typedef struct {
1309 + u32 mmcirq:1;
1310 + u32 cdsc:1;
1311 + u32 pad1:1;
1312 + u32 atocmdrdy:1;
1313 + u32 atocmdtmo:1;
1314 + u32 atocmdcrc:1;
1315 + u32 dmaqempty:1;
1316 + u32 sdioirq:1;
1317 + u32 cmdrdy:1;
1318 + u32 cmdtmo:1;
1319 + u32 rspcrc:1;
1320 + u32 csta:1;
1321 + u32 xfercomp:1;
1322 + u32 dxferdone:1;
1323 + u32 dattmo:1;
1324 + u32 datcrc:1;
1325 + u32 atocmd19done:1;
1326 + u32 pad2:15;
1327 +} msdc_inten_reg;
1328 +typedef struct {
1329 + u32 rxcnt:8;
1330 + u32 pad1:8;
1331 + u32 txcnt:8;
1332 + u32 pad2:7;
1333 + u32 clr:1;
1334 +} msdc_fifocs_reg;
1335 +typedef struct {
1336 + u32 val;
1337 +} msdc_txdat_reg;
1338 +typedef struct {
1339 + u32 val;
1340 +} msdc_rxdat_reg;
1341 +typedef struct {
1342 + u32 sdiowkup:1;
1343 + u32 inswkup:1;
1344 + u32 pad1:14;
1345 + u32 buswidth:2;
1346 + u32 pad2:1;
1347 + u32 sdio:1;
1348 + u32 sdioide:1;
1349 + u32 intblkgap:1;
1350 + u32 pad4:2;
1351 + u32 dtoc:8;
1352 +} sdc_cfg_reg;
1353 +typedef struct {
1354 + u32 cmd:6;
1355 + u32 brk:1;
1356 + u32 rsptyp:3;
1357 + u32 pad1:1;
1358 + u32 dtype:2;
1359 + u32 rw:1;
1360 + u32 stop:1;
1361 + u32 goirq:1;
1362 + u32 blklen:12;
1363 + u32 atocmd:2;
1364 + u32 volswth:1;
1365 + u32 pad2:1;
1366 +} sdc_cmd_reg;
1367 +typedef struct {
1368 + u32 arg;
1369 +} sdc_arg_reg;
1370 +typedef struct {
1371 + u32 sdcbusy:1;
1372 + u32 cmdbusy:1;
1373 + u32 pad:29;
1374 + u32 swrcmpl:1;
1375 +} sdc_sts_reg;
1376 +typedef struct {
1377 + u32 val;
1378 +} sdc_resp0_reg;
1379 +typedef struct {
1380 + u32 val;
1381 +} sdc_resp1_reg;
1382 +typedef struct {
1383 + u32 val;
1384 +} sdc_resp2_reg;
1385 +typedef struct {
1386 + u32 val;
1387 +} sdc_resp3_reg;
1388 +typedef struct {
1389 + u32 num;
1390 +} sdc_blknum_reg;
1391 +typedef struct {
1392 + u32 sts;
1393 +} sdc_csts_reg;
1394 +typedef struct {
1395 + u32 sts;
1396 +} sdc_cstsen_reg;
1397 +typedef struct {
1398 + u32 datcrcsts:8;
1399 + u32 ddrcrcsts:4;
1400 + u32 pad:20;
1401 +} sdc_datcrcsts_reg;
1402 +typedef struct {
1403 + u32 bootstart:1;
1404 + u32 bootstop:1;
1405 + u32 bootmode:1;
1406 + u32 pad1:9;
1407 + u32 bootwaidly:3;
1408 + u32 bootsupp:1;
1409 + u32 pad2:16;
1410 +} emmc_cfg0_reg;
1411 +typedef struct {
1412 + u32 bootcrctmc:16;
1413 + u32 pad:4;
1414 + u32 bootacktmc:12;
1415 +} emmc_cfg1_reg;
1416 +typedef struct {
1417 + u32 bootcrcerr:1;
1418 + u32 bootackerr:1;
1419 + u32 bootdattmo:1;
1420 + u32 bootacktmo:1;
1421 + u32 bootupstate:1;
1422 + u32 bootackrcv:1;
1423 + u32 bootdatrcv:1;
1424 + u32 pad:25;
1425 +} emmc_sts_reg;
1426 +typedef struct {
1427 + u32 bootrst:1;
1428 + u32 pad:31;
1429 +} emmc_iocon_reg;
1430 +typedef struct {
1431 + u32 val;
1432 +} msdc_acmd_resp_reg;
1433 +typedef struct {
1434 + u32 tunesel:4;
1435 + u32 pad:28;
1436 +} msdc_acmd19_trg_reg;
1437 +typedef struct {
1438 + u32 val;
1439 +} msdc_acmd19_sts_reg;
1440 +typedef struct {
1441 + u32 addr;
1442 +} msdc_dma_sa_reg;
1443 +typedef struct {
1444 + u32 addr;
1445 +} msdc_dma_ca_reg;
1446 +typedef struct {
1447 + u32 start:1;
1448 + u32 stop:1;
1449 + u32 resume:1;
1450 + u32 pad1:5;
1451 + u32 mode:1;
1452 + u32 pad2:1;
1453 + u32 lastbuf:1;
1454 + u32 pad3:1;
1455 + u32 brustsz:3;
1456 + u32 pad4:1;
1457 + u32 xfersz:16;
1458 +} msdc_dma_ctrl_reg;
1459 +typedef struct {
1460 + u32 status:1;
1461 + u32 decsen:1;
1462 + u32 pad1:2;
1463 + u32 bdcsen:1;
1464 + u32 gpdcsen:1;
1465 + u32 pad2:26;
1466 +} msdc_dma_cfg_reg;
1467 +typedef struct {
1468 + u32 sel:16;
1469 + u32 pad2:16;
1470 +} msdc_dbg_sel_reg;
1471 +typedef struct {
1472 + u32 val;
1473 +} msdc_dbg_out_reg;
1474 +typedef struct {
1475 + u32 clkdrvn:3;
1476 + u32 rsv0:1;
1477 + u32 clkdrvp:3;
1478 + u32 rsv1:1;
1479 + u32 clksr:1;
1480 + u32 rsv2:7;
1481 + u32 clkpd:1;
1482 + u32 clkpu:1;
1483 + u32 clksmt:1;
1484 + u32 clkies:1;
1485 + u32 clktdsel:4;
1486 + u32 clkrdsel:8;
1487 +} msdc_pad_ctl0_reg;
1488 +typedef struct {
1489 + u32 cmddrvn:3;
1490 + u32 rsv0:1;
1491 + u32 cmddrvp:3;
1492 + u32 rsv1:1;
1493 + u32 cmdsr:1;
1494 + u32 rsv2:7;
1495 + u32 cmdpd:1;
1496 + u32 cmdpu:1;
1497 + u32 cmdsmt:1;
1498 + u32 cmdies:1;
1499 + u32 cmdtdsel:4;
1500 + u32 cmdrdsel:8;
1501 +} msdc_pad_ctl1_reg;
1502 +typedef struct {
1503 + u32 datdrvn:3;
1504 + u32 rsv0:1;
1505 + u32 datdrvp:3;
1506 + u32 rsv1:1;
1507 + u32 datsr:1;
1508 + u32 rsv2:7;
1509 + u32 datpd:1;
1510 + u32 datpu:1;
1511 + u32 datsmt:1;
1512 + u32 daties:1;
1513 + u32 dattdsel:4;
1514 + u32 datrdsel:8;
1515 +} msdc_pad_ctl2_reg;
1516 +typedef struct {
1517 + u32 wrrxdly:3;
1518 + u32 pad1:5;
1519 + u32 rdrxdly:8;
1520 + u32 pad2:16;
1521 +} msdc_pad_tune_reg;
1522 +typedef struct {
1523 + u32 dat0:5;
1524 + u32 rsv0:3;
1525 + u32 dat1:5;
1526 + u32 rsv1:3;
1527 + u32 dat2:5;
1528 + u32 rsv2:3;
1529 + u32 dat3:5;
1530 + u32 rsv3:3;
1531 +} msdc_dat_rddly0;
1532 +typedef struct {
1533 + u32 dat4:5;
1534 + u32 rsv4:3;
1535 + u32 dat5:5;
1536 + u32 rsv5:3;
1537 + u32 dat6:5;
1538 + u32 rsv6:3;
1539 + u32 dat7:5;
1540 + u32 rsv7:3;
1541 +} msdc_dat_rddly1;
1542 +typedef struct {
1543 + u32 dbg0sel:8;
1544 + u32 dbg1sel:6;
1545 + u32 pad1:2;
1546 + u32 dbg2sel:6;
1547 + u32 pad2:2;
1548 + u32 dbg3sel:6;
1549 + u32 pad3:2;
1550 +} msdc_hw_dbg_reg;
1551 +typedef struct {
1552 + u32 val;
1553 +} msdc_version_reg;
1554 +typedef struct {
1555 + u32 val;
1556 +} msdc_eco_ver_reg;
1557 +
1558 +struct msdc_regs {
1559 + msdc_cfg_reg msdc_cfg; /* base+0x00h */
1560 + msdc_iocon_reg msdc_iocon; /* base+0x04h */
1561 + msdc_ps_reg msdc_ps; /* base+0x08h */
1562 + msdc_int_reg msdc_int; /* base+0x0ch */
1563 + msdc_inten_reg msdc_inten; /* base+0x10h */
1564 + msdc_fifocs_reg msdc_fifocs; /* base+0x14h */
1565 + msdc_txdat_reg msdc_txdat; /* base+0x18h */
1566 + msdc_rxdat_reg msdc_rxdat; /* base+0x1ch */
1567 + u32 rsv1[4];
1568 + sdc_cfg_reg sdc_cfg; /* base+0x30h */
1569 + sdc_cmd_reg sdc_cmd; /* base+0x34h */
1570 + sdc_arg_reg sdc_arg; /* base+0x38h */
1571 + sdc_sts_reg sdc_sts; /* base+0x3ch */
1572 + sdc_resp0_reg sdc_resp0; /* base+0x40h */
1573 + sdc_resp1_reg sdc_resp1; /* base+0x44h */
1574 + sdc_resp2_reg sdc_resp2; /* base+0x48h */
1575 + sdc_resp3_reg sdc_resp3; /* base+0x4ch */
1576 + sdc_blknum_reg sdc_blknum; /* base+0x50h */
1577 + u32 rsv2[1];
1578 + sdc_csts_reg sdc_csts; /* base+0x58h */
1579 + sdc_cstsen_reg sdc_cstsen; /* base+0x5ch */
1580 + sdc_datcrcsts_reg sdc_dcrcsta; /* base+0x60h */
1581 + u32 rsv3[3];
1582 + emmc_cfg0_reg emmc_cfg0; /* base+0x70h */
1583 + emmc_cfg1_reg emmc_cfg1; /* base+0x74h */
1584 + emmc_sts_reg emmc_sts; /* base+0x78h */
1585 + emmc_iocon_reg emmc_iocon; /* base+0x7ch */
1586 + msdc_acmd_resp_reg acmd_resp; /* base+0x80h */
1587 + msdc_acmd19_trg_reg acmd19_trg; /* base+0x84h */
1588 + msdc_acmd19_sts_reg acmd19_sts; /* base+0x88h */
1589 + u32 rsv4[1];
1590 + msdc_dma_sa_reg dma_sa; /* base+0x90h */
1591 + msdc_dma_ca_reg dma_ca; /* base+0x94h */
1592 + msdc_dma_ctrl_reg dma_ctrl; /* base+0x98h */
1593 + msdc_dma_cfg_reg dma_cfg; /* base+0x9ch */
1594 + msdc_dbg_sel_reg dbg_sel; /* base+0xa0h */
1595 + msdc_dbg_out_reg dbg_out; /* base+0xa4h */
1596 + u32 rsv5[2];
1597 + u32 patch0; /* base+0xb0h */
1598 + u32 patch1; /* base+0xb4h */
1599 + u32 rsv6[10];
1600 + msdc_pad_ctl0_reg pad_ctl0; /* base+0xe0h */
1601 + msdc_pad_ctl1_reg pad_ctl1; /* base+0xe4h */
1602 + msdc_pad_ctl2_reg pad_ctl2; /* base+0xe8h */
1603 + msdc_pad_tune_reg pad_tune; /* base+0xech */
1604 + msdc_dat_rddly0 dat_rddly0; /* base+0xf0h */
1605 + msdc_dat_rddly1 dat_rddly1; /* base+0xf4h */
1606 + msdc_hw_dbg_reg hw_dbg; /* base+0xf8h */
1607 + u32 rsv7[1];
1608 + msdc_version_reg version; /* base+0x100h */
1609 + msdc_eco_ver_reg eco_ver; /* base+0x104h */
1610 +};
1611 +
1612 +struct scatterlist_ex {
1613 + u32 cmd;
1614 + u32 arg;
1615 + u32 sglen;
1616 + struct scatterlist *sg;
1617 +};
1618 +
1619 +#define DMA_FLAG_NONE (0x00000000)
1620 +#define DMA_FLAG_EN_CHKSUM (0x00000001)
1621 +#define DMA_FLAG_PAD_BLOCK (0x00000002)
1622 +#define DMA_FLAG_PAD_DWORD (0x00000004)
1623 +
1624 +struct msdc_dma {
1625 + u32 flags; /* flags */
1626 + u32 xfersz; /* xfer size in bytes */
1627 + u32 sglen; /* size of scatter list */
1628 + u32 blklen; /* block size */
1629 + struct scatterlist *sg; /* I/O scatter list */
1630 + struct scatterlist_ex *esg; /* extended I/O scatter list */
1631 + u8 mode; /* dma mode */
1632 + u8 burstsz; /* burst size */
1633 + u8 intr; /* dma done interrupt */
1634 + u8 padding; /* padding */
1635 + u32 cmd; /* enhanced mode command */
1636 + u32 arg; /* enhanced mode arg */
1637 + u32 rsp; /* enhanced mode command response */
1638 + u32 autorsp; /* auto command response */
1639 +
1640 + gpd_t *gpd; /* pointer to gpd array */
1641 + bd_t *bd; /* pointer to bd array */
1642 + dma_addr_t gpd_addr; /* the physical address of gpd array */
1643 + dma_addr_t bd_addr; /* the physical address of bd array */
1644 + u32 used_gpd; /* the number of used gpd elements */
1645 + u32 used_bd; /* the number of used bd elements */
1646 +};
1647 +
1648 +struct msdc_host
1649 +{
1650 + struct msdc_hw *hw;
1651 +
1652 + struct mmc_host *mmc; /* mmc structure */
1653 + struct mmc_command *cmd;
1654 + struct mmc_data *data;
1655 + struct mmc_request *mrq;
1656 + int cmd_rsp;
1657 + int cmd_rsp_done;
1658 + int cmd_r1b_done;
1659 +
1660 + int error;
1661 + spinlock_t lock; /* mutex */
1662 + struct semaphore sem;
1663 +
1664 + u32 blksz; /* host block size */
1665 + u32 base; /* host base address */
1666 + int id; /* host id */
1667 + int pwr_ref; /* core power reference count */
1668 +
1669 + u32 xfer_size; /* total transferred size */
1670 +
1671 + struct msdc_dma dma; /* dma channel */
1672 + u32 dma_addr; /* dma transfer address */
1673 + u32 dma_left_size; /* dma transfer left size */
1674 + u32 dma_xfer_size; /* dma transfer size in bytes */
1675 + int dma_xfer; /* dma transfer mode */
1676 +
1677 + u32 timeout_ns; /* data timeout ns */
1678 + u32 timeout_clks; /* data timeout clks */
1679 +
1680 + atomic_t abort; /* abort transfer */
1681 +
1682 + int irq; /* host interrupt */
1683 +
1684 + struct tasklet_struct card_tasklet;
1685 +#if 0
1686 + struct work_struct card_workqueue;
1687 +#else
1688 + struct delayed_work card_delaywork;
1689 +#endif
1690 +
1691 + struct completion cmd_done;
1692 + struct completion xfer_done;
1693 + struct pm_message pm_state;
1694 +
1695 + u32 mclk; /* mmc subsystem clock */
1696 + u32 hclk; /* host clock speed */
1697 + u32 sclk; /* SD/MS clock speed */
1698 + u8 core_clkon; /* Host core clock on ? */
1699 + u8 card_clkon; /* Card clock on ? */
1700 + u8 core_power; /* core power */
1701 + u8 power_mode; /* host power mode */
1702 + u8 card_inserted; /* card inserted ? */
1703 + u8 suspend; /* host suspended ? */
1704 + u8 reserved;
1705 + u8 app_cmd; /* for app command */
1706 + u32 app_cmd_arg;
1707 + u64 starttime;
1708 +};
1709 +
1710 +static inline unsigned int uffs(unsigned int x)
1711 +{
1712 + unsigned int r = 1;
1713 +
1714 + if (!x)
1715 + return 0;
1716 + if (!(x & 0xffff)) {
1717 + x >>= 16;
1718 + r += 16;
1719 + }
1720 + if (!(x & 0xff)) {
1721 + x >>= 8;
1722 + r += 8;
1723 + }
1724 + if (!(x & 0xf)) {
1725 + x >>= 4;
1726 + r += 4;
1727 + }
1728 + if (!(x & 3)) {
1729 + x >>= 2;
1730 + r += 2;
1731 + }
1732 + if (!(x & 1)) {
1733 + x >>= 1;
1734 + r += 1;
1735 + }
1736 + return r;
1737 +}
1738 +#define sdr_read8(reg) __raw_readb(reg)
1739 +#define sdr_read16(reg) __raw_readw(reg)
1740 +#define sdr_read32(reg) __raw_readl(reg)
1741 +#define sdr_write8(reg,val) __raw_writeb(val,reg)
1742 +#define sdr_write16(reg,val) __raw_writew(val,reg)
1743 +#define sdr_write32(reg,val) __raw_writel(val,reg)
1744 +
1745 +#define sdr_set_bits(reg,bs) ((*(volatile u32*)(reg)) |= (u32)(bs))
1746 +#define sdr_clr_bits(reg,bs) ((*(volatile u32*)(reg)) &= ~((u32)(bs)))
1747 +
1748 +#define sdr_set_field(reg,field,val) \
1749 + do { \
1750 + volatile unsigned int tv = sdr_read32(reg); \
1751 + tv &= ~(field); \
1752 + tv |= ((val) << (uffs((unsigned int)field) - 1)); \
1753 + sdr_write32(reg,tv); \
1754 + } while(0)
1755 +#define sdr_get_field(reg,field,val) \
1756 + do { \
1757 + volatile unsigned int tv = sdr_read32(reg); \
1758 + val = ((tv & (field)) >> (uffs((unsigned int)field) - 1)); \
1759 + } while(0)
1760 +
1761 +#endif
1762 +
1763 --- /dev/null
1764 +++ b/drivers/mmc/host/mtk-mmc/sd.c
1765 @@ -0,0 +1,3057 @@
1766 +/* Copyright Statement:
1767 + *
1768 + * This software/firmware and related documentation ("MediaTek Software") are
1769 + * protected under relevant copyright laws. The information contained herein
1770 + * is confidential and proprietary to MediaTek Inc. and/or its licensors.
1771 + * Without the prior written permission of MediaTek inc. and/or its licensors,
1772 + * any reproduction, modification, use or disclosure of MediaTek Software,
1773 + * and information contained herein, in whole or in part, shall be strictly prohibited.
1774 + *
1775 + * MediaTek Inc. (C) 2010. All rights reserved.
1776 + *
1777 + * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
1778 + * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
1779 + * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
1780 + * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
1781 + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
1782 + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
1783 + * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
1784 + * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
1785 + * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
1786 + * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
1787 + * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
1788 + * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
1789 + * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
1790 + * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
1791 + * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
1792 + * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
1793 + * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
1794 + * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
1795 + *
1796 + * The following software/firmware and/or related documentation ("MediaTek Software")
1797 + * have been modified by MediaTek Inc. All revisions are subject to any receiver's
1798 + * applicable license agreements with MediaTek Inc.
1799 + */
1800 +
1801 +#include <linux/module.h>
1802 +#include <linux/moduleparam.h>
1803 +#include <linux/init.h>
1804 +#include <linux/spinlock.h>
1805 +#include <linux/timer.h>
1806 +#include <linux/ioport.h>
1807 +#include <linux/device.h>
1808 +#include <linux/platform_device.h>
1809 +#include <linux/interrupt.h>
1810 +#include <linux/delay.h>
1811 +#include <linux/blkdev.h>
1812 +#include <linux/slab.h>
1813 +#include <linux/mmc/host.h>
1814 +#include <linux/mmc/card.h>
1815 +#include <linux/mmc/core.h>
1816 +#include <linux/mmc/mmc.h>
1817 +#include <linux/mmc/sd.h>
1818 +#include <linux/mmc/sdio.h>
1819 +#include <linux/dma-mapping.h>
1820 +
1821 +/* +++ by chhung */
1822 +#include <linux/types.h>
1823 +#include <linux/kernel.h>
1824 +#include <linux/version.h>
1825 +#include <linux/pm.h>
1826 +#include <linux/of.h>
1827 +
1828 +#define MSDC_SMPL_FALLING (1)
1829 +#define MSDC_CD_PIN_EN (1 << 0) /* card detection pin is wired */
1830 +#define MSDC_WP_PIN_EN (1 << 1) /* write protection pin is wired */
1831 +#define MSDC_REMOVABLE (1 << 5) /* removable slot */
1832 +#define MSDC_SYS_SUSPEND (1 << 6) /* suspended by system */
1833 +#define MSDC_HIGHSPEED (1 << 7)
1834 +
1835 +//#define IRQ_SDC 14 //MT7620 /*FIXME*/
1836 +#ifdef CONFIG_SOC_MT7621
1837 +#define RALINK_SYSCTL_BASE 0xbe000000
1838 +#define RALINK_MSDC_BASE 0xbe130000
1839 +#else
1840 +#define RALINK_SYSCTL_BASE 0xb0000000
1841 +#define RALINK_MSDC_BASE 0xb0130000
1842 +#endif
1843 +#define IRQ_SDC 22 /*FIXME*/
1844 +
1845 +#include <asm/dma.h>
1846 +/* end of +++ */
1847 +
1848 +
1849 +#include <asm/mach-ralink/ralink_regs.h>
1850 +
1851 +#if 0 /* --- by chhung */
1852 +#include <mach/board.h>
1853 +#include <mach/mt6575_devs.h>
1854 +#include <mach/mt6575_typedefs.h>
1855 +#include <mach/mt6575_clock_manager.h>
1856 +#include <mach/mt6575_pm_ldo.h>
1857 +//#include <mach/mt6575_pll.h>
1858 +//#include <mach/mt6575_gpio.h>
1859 +//#include <mach/mt6575_gpt_sw.h>
1860 +#include <asm/tcm.h>
1861 +// #include <mach/mt6575_gpt.h>
1862 +#endif /* end of --- */
1863 +
1864 +#include "mt6575_sd.h"
1865 +#include "dbg.h"
1866 +
1867 +/* +++ by chhung */
1868 +#include "board.h"
1869 +/* end of +++ */
1870 +
1871 +#if 0 /* --- by chhung */
1872 +#define isb() __asm__ __volatile__ ("" : : : "memory")
1873 +#define dsb() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 4" \
1874 + : : "r" (0) : "memory")
1875 +#define dmb() __asm__ __volatile__ ("" : : : "memory")
1876 +#endif /* end of --- */
1877 +
1878 +#define DRV_NAME "mtk-sd"
1879 +
1880 +#define HOST_MAX_NUM (1) /* +/- by chhung */
1881 +
1882 +#if defined (CONFIG_SOC_MT7620)
1883 +#define HOST_MAX_MCLK (48000000) /* +/- by chhung */
1884 +#elif defined (CONFIG_SOC_MT7621)
1885 +#define HOST_MAX_MCLK (50000000) /* +/- by chhung */
1886 +#endif
1887 +#define HOST_MIN_MCLK (260000)
1888 +
1889 +#define HOST_MAX_BLKSZ (2048)
1890 +
1891 +#define MSDC_OCR_AVAIL (MMC_VDD_28_29 | MMC_VDD_29_30 | MMC_VDD_30_31 | MMC_VDD_31_32 | MMC_VDD_32_33)
1892 +
1893 +#define GPIO_PULL_DOWN (0)
1894 +#define GPIO_PULL_UP (1)
1895 +
1896 +#if 0 /* --- by chhung */
1897 +#define MSDC_CLKSRC_REG (0xf100000C)
1898 +#define PDN_REG (0xF1000010)
1899 +#endif /* end of --- */
1900 +
1901 +#define DEFAULT_DEBOUNCE (8) /* 8 cycles */
1902 +#define DEFAULT_DTOC (40) /* data timeout counter. 65536x40 sclk. */
1903 +
1904 +#define CMD_TIMEOUT (HZ/10) /* 100ms */
1905 +#define DAT_TIMEOUT (HZ/2 * 5) /* 500ms x5 */
1906 +
1907 +#define MAX_DMA_CNT (64 * 1024 - 512) /* a single transaction for WIFI may be 50K*/
1908 +
1909 +#define MAX_GPD_NUM (1 + 1) /* one null gpd */
1910 +#define MAX_BD_NUM (1024)
1911 +#define MAX_BD_PER_GPD (MAX_BD_NUM)
1912 +
1913 +#define MAX_HW_SGMTS (MAX_BD_NUM)
1914 +#define MAX_PHY_SGMTS (MAX_BD_NUM)
1915 +#define MAX_SGMT_SZ (MAX_DMA_CNT)
1916 +#define MAX_REQ_SZ (MAX_SGMT_SZ * 8)
1917 +
1918 +static int mtk_sw_poll;
1919 +
1920 +static int cd_active_low = 1;
1921 +
1922 +//=================================
1923 +#define PERI_MSDC0_PDN (15)
1924 +//#define PERI_MSDC1_PDN (16)
1925 +//#define PERI_MSDC2_PDN (17)
1926 +//#define PERI_MSDC3_PDN (18)
1927 +
1928 +#if 0 /* --- by chhung */
1929 +/* gate means clock power down */
1930 +static int g_clk_gate = 0;
1931 +#define msdc_gate_clock(id) \
1932 + do { \
1933 + g_clk_gate &= ~(1 << ((id) + PERI_MSDC0_PDN)); \
1934 + } while(0)
1935 +/* not like power down register. 1 means clock on. */
1936 +#define msdc_ungate_clock(id) \
1937 + do { \
1938 + g_clk_gate |= 1 << ((id) + PERI_MSDC0_PDN); \
1939 + } while(0)
1940 +
1941 +// do we need sync object or not
1942 +void msdc_clk_status(int * status)
1943 +{
1944 + *status = g_clk_gate;
1945 +}
1946 +#endif /* end of --- */
1947 +
1948 +/* +++ by chhung */
1949 +struct msdc_hw msdc0_hw = {
1950 + .clk_src = 0,
1951 + .cmd_edge = MSDC_SMPL_FALLING,
1952 + .data_edge = MSDC_SMPL_FALLING,
1953 + .clk_drv = 4,
1954 + .cmd_drv = 4,
1955 + .dat_drv = 4,
1956 + .data_pins = 4,
1957 + .data_offset = 0,
1958 + .flags = MSDC_SYS_SUSPEND | MSDC_CD_PIN_EN | MSDC_REMOVABLE | MSDC_HIGHSPEED,
1959 +// .flags = MSDC_SYS_SUSPEND | MSDC_WP_PIN_EN | MSDC_CD_PIN_EN | MSDC_REMOVABLE,
1960 +};
1961 +
1962 +static struct resource mtk_sd_resources[] = {
1963 + [0] = {
1964 + .start = RALINK_MSDC_BASE,
1965 + .end = RALINK_MSDC_BASE+0x3fff,
1966 + .flags = IORESOURCE_MEM,
1967 + },
1968 + [1] = {
1969 + .start = IRQ_SDC, /*FIXME*/
1970 + .end = IRQ_SDC, /*FIXME*/
1971 + .flags = IORESOURCE_IRQ,
1972 + },
1973 +};
1974 +
1975 +static struct platform_device mtk_sd_device = {
1976 + .name = "mtk-sd",
1977 + .id = 0,
1978 + .num_resources = ARRAY_SIZE(mtk_sd_resources),
1979 + .resource = mtk_sd_resources,
1980 +};
1981 +/* end of +++ */
1982 +
1983 +static int msdc_rsp[] = {
1984 + 0, /* RESP_NONE */
1985 + 1, /* RESP_R1 */
1986 + 2, /* RESP_R2 */
1987 + 3, /* RESP_R3 */
1988 + 4, /* RESP_R4 */
1989 + 1, /* RESP_R5 */
1990 + 1, /* RESP_R6 */
1991 + 1, /* RESP_R7 */
1992 + 7, /* RESP_R1b */
1993 +};
1994 +
1995 +/* For Inhanced DMA */
1996 +#define msdc_init_gpd_ex(gpd,extlen,cmd,arg,blknum) \
1997 + do { \
1998 + ((gpd_t*)gpd)->extlen = extlen; \
1999 + ((gpd_t*)gpd)->cmd = cmd; \
2000 + ((gpd_t*)gpd)->arg = arg; \
2001 + ((gpd_t*)gpd)->blknum = blknum; \
2002 + }while(0)
2003 +
2004 +#define msdc_init_bd(bd, blkpad, dwpad, dptr, dlen) \
2005 + do { \
2006 + BUG_ON(dlen > 0xFFFFUL); \
2007 + ((bd_t*)bd)->blkpad = blkpad; \
2008 + ((bd_t*)bd)->dwpad = dwpad; \
2009 + ((bd_t*)bd)->ptr = (void*)dptr; \
2010 + ((bd_t*)bd)->buflen = dlen; \
2011 + }while(0)
2012 +
2013 +#define msdc_txfifocnt() ((sdr_read32(MSDC_FIFOCS) & MSDC_FIFOCS_TXCNT) >> 16)
2014 +#define msdc_rxfifocnt() ((sdr_read32(MSDC_FIFOCS) & MSDC_FIFOCS_RXCNT) >> 0)
2015 +#define msdc_fifo_write32(v) sdr_write32(MSDC_TXDATA, (v))
2016 +#define msdc_fifo_write8(v) sdr_write8(MSDC_TXDATA, (v))
2017 +#define msdc_fifo_read32() sdr_read32(MSDC_RXDATA)
2018 +#define msdc_fifo_read8() sdr_read8(MSDC_RXDATA)
2019 +
2020 +
2021 +#define msdc_dma_on() sdr_clr_bits(MSDC_CFG, MSDC_CFG_PIO)
2022 +#define msdc_dma_off() sdr_set_bits(MSDC_CFG, MSDC_CFG_PIO)
2023 +
2024 +#define msdc_retry(expr,retry,cnt) \
2025 + do { \
2026 + int backup = cnt; \
2027 + while (retry) { \
2028 + if (!(expr)) break; \
2029 + if (cnt-- == 0) { \
2030 + retry--; mdelay(1); cnt = backup; \
2031 + } \
2032 + } \
2033 + WARN_ON(retry == 0); \
2034 + } while(0)
2035 +
2036 +#if 0 /* --- by chhung */
2037 +#define msdc_reset() \
2038 + do { \
2039 + int retry = 3, cnt = 1000; \
2040 + sdr_set_bits(MSDC_CFG, MSDC_CFG_RST); \
2041 + dsb(); \
2042 + msdc_retry(sdr_read32(MSDC_CFG) & MSDC_CFG_RST, retry, cnt); \
2043 + } while(0)
2044 +#else
2045 +#define msdc_reset() \
2046 + do { \
2047 + int retry = 3, cnt = 1000; \
2048 + sdr_set_bits(MSDC_CFG, MSDC_CFG_RST); \
2049 + msdc_retry(sdr_read32(MSDC_CFG) & MSDC_CFG_RST, retry, cnt); \
2050 + } while(0)
2051 +#endif /* end of +/- */
2052 +
2053 +#define msdc_clr_int() \
2054 + do { \
2055 + volatile u32 val = sdr_read32(MSDC_INT); \
2056 + sdr_write32(MSDC_INT, val); \
2057 + } while(0)
2058 +
2059 +#define msdc_clr_fifo() \
2060 + do { \
2061 + int retry = 3, cnt = 1000; \
2062 + sdr_set_bits(MSDC_FIFOCS, MSDC_FIFOCS_CLR); \
2063 + msdc_retry(sdr_read32(MSDC_FIFOCS) & MSDC_FIFOCS_CLR, retry, cnt); \
2064 + } while(0)
2065 +
2066 +#define msdc_irq_save(val) \
2067 + do { \
2068 + val = sdr_read32(MSDC_INTEN); \
2069 + sdr_clr_bits(MSDC_INTEN, val); \
2070 + } while(0)
2071 +
2072 +#define msdc_irq_restore(val) \
2073 + do { \
2074 + sdr_set_bits(MSDC_INTEN, val); \
2075 + } while(0)
2076 +
2077 +/* clock source for host: global */
2078 +#if defined (CONFIG_SOC_MT7620)
2079 +static u32 hclks[] = {48000000}; /* +/- by chhung */
2080 +#elif defined (CONFIG_SOC_MT7621)
2081 +static u32 hclks[] = {50000000}; /* +/- by chhung */
2082 +#endif
2083 +
2084 +//============================================
2085 +// the power for msdc host controller: global
2086 +// always keep the VMC on.
2087 +//============================================
2088 +#define msdc_vcore_on(host) \
2089 + do { \
2090 + INIT_MSG("[+]VMC ref. count<%d>", ++host->pwr_ref); \
2091 + (void)hwPowerOn(MT65XX_POWER_LDO_VMC, VOL_3300, "SD"); \
2092 + } while (0)
2093 +#define msdc_vcore_off(host) \
2094 + do { \
2095 + INIT_MSG("[-]VMC ref. count<%d>", --host->pwr_ref); \
2096 + (void)hwPowerDown(MT65XX_POWER_LDO_VMC, "SD"); \
2097 + } while (0)
2098 +
2099 +//====================================
2100 +// the vdd output for card: global
2101 +// always keep the VMCH on.
2102 +//====================================
2103 +#define msdc_vdd_on(host) \
2104 + do { \
2105 + (void)hwPowerOn(MT65XX_POWER_LDO_VMCH, VOL_3300, "SD"); \
2106 + } while (0)
2107 +#define msdc_vdd_off(host) \
2108 + do { \
2109 + (void)hwPowerDown(MT65XX_POWER_LDO_VMCH, "SD"); \
2110 + } while (0)
2111 +
2112 +#define sdc_is_busy() (sdr_read32(SDC_STS) & SDC_STS_SDCBUSY)
2113 +#define sdc_is_cmd_busy() (sdr_read32(SDC_STS) & SDC_STS_CMDBUSY)
2114 +
2115 +#define sdc_send_cmd(cmd,arg) \
2116 + do { \
2117 + sdr_write32(SDC_ARG, (arg)); \
2118 + sdr_write32(SDC_CMD, (cmd)); \
2119 + } while(0)
2120 +
2121 +// can modify to read h/w register.
2122 +//#define is_card_present(h) ((sdr_read32(MSDC_PS) & MSDC_PS_CDSTS) ? 0 : 1);
2123 +#define is_card_present(h) (((struct msdc_host*)(h))->card_inserted)
2124 +
2125 +/* +++ by chhung */
2126 +#ifndef __ASSEMBLY__
2127 +#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff)
2128 +#else
2129 +#define PHYSADDR(a) ((a) & 0x1fffffff)
2130 +#endif
2131 +/* end of +++ */
2132 +static unsigned int msdc_do_command(struct msdc_host *host,
2133 + struct mmc_command *cmd,
2134 + int tune,
2135 + unsigned long timeout);
2136 +
2137 +static int msdc_tune_cmdrsp(struct msdc_host*host,struct mmc_command *cmd);
2138 +
2139 +#ifdef MT6575_SD_DEBUG
2140 +static void msdc_dump_card_status(struct msdc_host *host, u32 status)
2141 +{
2142 + static char *state[] = {
2143 + "Idle", /* 0 */
2144 + "Ready", /* 1 */
2145 + "Ident", /* 2 */
2146 + "Stby", /* 3 */
2147 + "Tran", /* 4 */
2148 + "Data", /* 5 */
2149 + "Rcv", /* 6 */
2150 + "Prg", /* 7 */
2151 + "Dis", /* 8 */
2152 + "Reserved", /* 9 */
2153 + "Reserved", /* 10 */
2154 + "Reserved", /* 11 */
2155 + "Reserved", /* 12 */
2156 + "Reserved", /* 13 */
2157 + "Reserved", /* 14 */
2158 + "I/O mode", /* 15 */
2159 + };
2160 + if (status & R1_OUT_OF_RANGE)
2161 + N_MSG(RSP, "[CARD_STATUS] Out of Range");
2162 + if (status & R1_ADDRESS_ERROR)
2163 + N_MSG(RSP, "[CARD_STATUS] Address Error");
2164 + if (status & R1_BLOCK_LEN_ERROR)
2165 + N_MSG(RSP, "[CARD_STATUS] Block Len Error");
2166 + if (status & R1_ERASE_SEQ_ERROR)
2167 + N_MSG(RSP, "[CARD_STATUS] Erase Seq Error");
2168 + if (status & R1_ERASE_PARAM)
2169 + N_MSG(RSP, "[CARD_STATUS] Erase Param");
2170 + if (status & R1_WP_VIOLATION)
2171 + N_MSG(RSP, "[CARD_STATUS] WP Violation");
2172 + if (status & R1_CARD_IS_LOCKED)
2173 + N_MSG(RSP, "[CARD_STATUS] Card is Locked");
2174 + if (status & R1_LOCK_UNLOCK_FAILED)
2175 + N_MSG(RSP, "[CARD_STATUS] Lock/Unlock Failed");
2176 + if (status & R1_COM_CRC_ERROR)
2177 + N_MSG(RSP, "[CARD_STATUS] Command CRC Error");
2178 + if (status & R1_ILLEGAL_COMMAND)
2179 + N_MSG(RSP, "[CARD_STATUS] Illegal Command");
2180 + if (status & R1_CARD_ECC_FAILED)
2181 + N_MSG(RSP, "[CARD_STATUS] Card ECC Failed");
2182 + if (status & R1_CC_ERROR)
2183 + N_MSG(RSP, "[CARD_STATUS] CC Error");
2184 + if (status & R1_ERROR)
2185 + N_MSG(RSP, "[CARD_STATUS] Error");
2186 + if (status & R1_UNDERRUN)
2187 + N_MSG(RSP, "[CARD_STATUS] Underrun");
2188 + if (status & R1_OVERRUN)
2189 + N_MSG(RSP, "[CARD_STATUS] Overrun");
2190 + if (status & R1_CID_CSD_OVERWRITE)
2191 + N_MSG(RSP, "[CARD_STATUS] CID/CSD Overwrite");
2192 + if (status & R1_WP_ERASE_SKIP)
2193 + N_MSG(RSP, "[CARD_STATUS] WP Eraser Skip");
2194 + if (status & R1_CARD_ECC_DISABLED)
2195 + N_MSG(RSP, "[CARD_STATUS] Card ECC Disabled");
2196 + if (status & R1_ERASE_RESET)
2197 + N_MSG(RSP, "[CARD_STATUS] Erase Reset");
2198 + if (status & R1_READY_FOR_DATA)
2199 + N_MSG(RSP, "[CARD_STATUS] Ready for Data");
2200 + if (status & R1_SWITCH_ERROR)
2201 + N_MSG(RSP, "[CARD_STATUS] Switch error");
2202 + if (status & R1_APP_CMD)
2203 + N_MSG(RSP, "[CARD_STATUS] App Command");
2204 +
2205 + N_MSG(RSP, "[CARD_STATUS] '%s' State", state[R1_CURRENT_STATE(status)]);
2206 +}
2207 +
2208 +static void msdc_dump_ocr_reg(struct msdc_host *host, u32 resp)
2209 +{
2210 + if (resp & (1 << 7))
2211 + N_MSG(RSP, "[OCR] Low Voltage Range");
2212 + if (resp & (1 << 15))
2213 + N_MSG(RSP, "[OCR] 2.7-2.8 volt");
2214 + if (resp & (1 << 16))
2215 + N_MSG(RSP, "[OCR] 2.8-2.9 volt");
2216 + if (resp & (1 << 17))
2217 + N_MSG(RSP, "[OCR] 2.9-3.0 volt");
2218 + if (resp & (1 << 18))
2219 + N_MSG(RSP, "[OCR] 3.0-3.1 volt");
2220 + if (resp & (1 << 19))
2221 + N_MSG(RSP, "[OCR] 3.1-3.2 volt");
2222 + if (resp & (1 << 20))
2223 + N_MSG(RSP, "[OCR] 3.2-3.3 volt");
2224 + if (resp & (1 << 21))
2225 + N_MSG(RSP, "[OCR] 3.3-3.4 volt");
2226 + if (resp & (1 << 22))
2227 + N_MSG(RSP, "[OCR] 3.4-3.5 volt");
2228 + if (resp & (1 << 23))
2229 + N_MSG(RSP, "[OCR] 3.5-3.6 volt");
2230 + if (resp & (1 << 24))
2231 + N_MSG(RSP, "[OCR] Switching to 1.8V Accepted (S18A)");
2232 + if (resp & (1 << 30))
2233 + N_MSG(RSP, "[OCR] Card Capacity Status (CCS)");
2234 + if (resp & (1 << 31))
2235 + N_MSG(RSP, "[OCR] Card Power Up Status (Idle)");
2236 + else
2237 + N_MSG(RSP, "[OCR] Card Power Up Status (Busy)");
2238 +}
2239 +
2240 +static void msdc_dump_rca_resp(struct msdc_host *host, u32 resp)
2241 +{
2242 + u32 status = (((resp >> 15) & 0x1) << 23) |
2243 + (((resp >> 14) & 0x1) << 22) |
2244 + (((resp >> 13) & 0x1) << 19) |
2245 + (resp & 0x1fff);
2246 +
2247 + N_MSG(RSP, "[RCA] 0x%.4x", resp >> 16);
2248 + msdc_dump_card_status(host, status);
2249 +}
2250 +
2251 +static void msdc_dump_io_resp(struct msdc_host *host, u32 resp)
2252 +{
2253 + u32 flags = (resp >> 8) & 0xFF;
2254 + char *state[] = {"DIS", "CMD", "TRN", "RFU"};
2255 +
2256 + if (flags & (1 << 7))
2257 + N_MSG(RSP, "[IO] COM_CRC_ERR");
2258 + if (flags & (1 << 6))
2259 + N_MSG(RSP, "[IO] Illgal command");
2260 + if (flags & (1 << 3))
2261 + N_MSG(RSP, "[IO] Error");
2262 + if (flags & (1 << 2))
2263 + N_MSG(RSP, "[IO] RFU");
2264 + if (flags & (1 << 1))
2265 + N_MSG(RSP, "[IO] Function number error");
2266 + if (flags & (1 << 0))
2267 + N_MSG(RSP, "[IO] Out of range");
2268 +
2269 + N_MSG(RSP, "[IO] State: %s, Data:0x%x", state[(resp >> 12) & 0x3], resp & 0xFF);
2270 +}
2271 +#endif
2272 +
2273 +static void msdc_set_timeout(struct msdc_host *host, u32 ns, u32 clks)
2274 +{
2275 + u32 base = host->base;
2276 + u32 timeout, clk_ns;
2277 +
2278 + host->timeout_ns = ns;
2279 + host->timeout_clks = clks;
2280 +
2281 + clk_ns = 1000000000UL / host->sclk;
2282 + timeout = ns / clk_ns + clks;
2283 + timeout = timeout >> 16; /* in 65536 sclk cycle unit */
2284 + timeout = timeout > 1 ? timeout - 1 : 0;
2285 + timeout = timeout > 255 ? 255 : timeout;
2286 +
2287 + sdr_set_field(SDC_CFG, SDC_CFG_DTOC, timeout);
2288 +
2289 + N_MSG(OPS, "Set read data timeout: %dns %dclks -> %d x 65536 cycles",
2290 + ns, clks, timeout + 1);
2291 +}
2292 +
2293 +/* msdc_eirq_sdio() will be called when EIRQ(for WIFI) */
2294 +static void msdc_eirq_sdio(void *data)
2295 +{
2296 + struct msdc_host *host = (struct msdc_host *)data;
2297 +
2298 + N_MSG(INT, "SDIO EINT");
2299 +
2300 + mmc_signal_sdio_irq(host->mmc);
2301 +}
2302 +
2303 +/* msdc_eirq_cd will not be used! We not using EINT for card detection. */
2304 +static void msdc_eirq_cd(void *data)
2305 +{
2306 + struct msdc_host *host = (struct msdc_host *)data;
2307 +
2308 + N_MSG(INT, "CD EINT");
2309 +
2310 +#if 0
2311 + tasklet_hi_schedule(&host->card_tasklet);
2312 +#else
2313 + schedule_delayed_work(&host->card_delaywork, HZ);
2314 +#endif
2315 +}
2316 +
2317 +#if 0
2318 +static void msdc_tasklet_card(unsigned long arg)
2319 +{
2320 + struct msdc_host *host = (struct msdc_host *)arg;
2321 +#else
2322 +static void msdc_tasklet_card(struct work_struct *work)
2323 +{
2324 + struct msdc_host *host = (struct msdc_host *)container_of(work,
2325 + struct msdc_host, card_delaywork.work);
2326 +#endif
2327 + struct msdc_hw *hw = host->hw;
2328 + u32 base = host->base;
2329 + u32 inserted;
2330 + u32 status = 0;
2331 + //u32 change = 0;
2332 +
2333 + spin_lock(&host->lock);
2334 +
2335 + if (hw->get_cd_status) { // NULL
2336 + inserted = hw->get_cd_status();
2337 + } else {
2338 + status = sdr_read32(MSDC_PS);
2339 + if (cd_active_low)
2340 + inserted = (status & MSDC_PS_CDSTS) ? 0 : 1;
2341 + else
2342 + inserted = (status & MSDC_PS_CDSTS) ? 1 : 0;
2343 + }
2344 + if (host->mmc->caps & MMC_CAP_NEEDS_POLL)
2345 + inserted = 1;
2346 +
2347 +#if 0
2348 + change = host->card_inserted ^ inserted;
2349 + host->card_inserted = inserted;
2350 +
2351 + if (change && !host->suspend) {
2352 + if (inserted) {
2353 + host->mmc->f_max = HOST_MAX_MCLK; // work around
2354 + }
2355 + mmc_detect_change(host->mmc, msecs_to_jiffies(20));
2356 + }
2357 +#else /* Make sure: handle the last interrupt */
2358 + host->card_inserted = inserted;
2359 +
2360 + if (!host->suspend) {
2361 + host->mmc->f_max = HOST_MAX_MCLK;
2362 + mmc_detect_change(host->mmc, msecs_to_jiffies(20));
2363 + }
2364 +
2365 + IRQ_MSG("card found<%s>", inserted ? "inserted" : "removed");
2366 +#endif
2367 +
2368 + spin_unlock(&host->lock);
2369 +}
2370 +
2371 +#if 0 /* --- by chhung */
2372 +/* For E2 only */
2373 +static u8 clk_src_bit[4] = {
2374 + 0, 3, 5, 7
2375 +};
2376 +
2377 +static void msdc_select_clksrc(struct msdc_host* host, unsigned char clksrc)
2378 +{
2379 + u32 val;
2380 + u32 base = host->base;
2381 +
2382 + BUG_ON(clksrc > 3);
2383 + INIT_MSG("set clock source to <%d>", clksrc);
2384 +
2385 + val = sdr_read32(MSDC_CLKSRC_REG);
2386 + if (sdr_read32(MSDC_ECO_VER) >= 4) {
2387 + val &= ~(0x3 << clk_src_bit[host->id]);
2388 + val |= clksrc << clk_src_bit[host->id];
2389 + } else {
2390 + val &= ~0x3; val |= clksrc;
2391 + }
2392 + sdr_write32(MSDC_CLKSRC_REG, val);
2393 +
2394 + host->hclk = hclks[clksrc];
2395 + host->hw->clk_src = clksrc;
2396 +}
2397 +#endif /* end of --- */
2398 +
2399 +static void msdc_set_mclk(struct msdc_host *host, int ddr, unsigned int hz)
2400 +{
2401 + //struct msdc_hw *hw = host->hw;
2402 + u32 base = host->base;
2403 + u32 mode;
2404 + u32 flags;
2405 + u32 div;
2406 + u32 sclk;
2407 + u32 hclk = host->hclk;
2408 + //u8 clksrc = hw->clk_src;
2409 +
2410 + if (!hz) { // set mmc system clock to 0 ?
2411 + //ERR_MSG("set mclk to 0!!!");
2412 + msdc_reset();
2413 + return;
2414 + }
2415 +
2416 + msdc_irq_save(flags);
2417 +
2418 +#if defined (CONFIG_MT7621_FPGA) || defined (CONFIG_MT7628_FPGA)
2419 + mode = 0x0; /* use divisor */
2420 + if (hz >= (hclk >> 1)) {
2421 + div = 0; /* mean div = 1/2 */
2422 + sclk = hclk >> 1; /* sclk = clk / 2 */
2423 + } else {
2424 + div = (hclk + ((hz << 2) - 1)) / (hz << 2);
2425 + sclk = (hclk >> 2) / div;
2426 + }
2427 +#else
2428 + if (ddr) {
2429 + mode = 0x2; /* ddr mode and use divisor */
2430 + if (hz >= (hclk >> 2)) {
2431 + div = 1; /* mean div = 1/4 */
2432 + sclk = hclk >> 2; /* sclk = clk / 4 */
2433 + } else {
2434 + div = (hclk + ((hz << 2) - 1)) / (hz << 2);
2435 + sclk = (hclk >> 2) / div;
2436 + }
2437 + } else if (hz >= hclk) { /* bug fix */
2438 + mode = 0x1; /* no divisor and divisor is ignored */
2439 + div = 0;
2440 + sclk = hclk;
2441 + } else {
2442 + mode = 0x0; /* use divisor */
2443 + if (hz >= (hclk >> 1)) {
2444 + div = 0; /* mean div = 1/2 */
2445 + sclk = hclk >> 1; /* sclk = clk / 2 */
2446 + } else {
2447 + div = (hclk + ((hz << 2) - 1)) / (hz << 2);
2448 + sclk = (hclk >> 2) / div;
2449 + }
2450 + }
2451 +#endif
2452 + /* set clock mode and divisor */
2453 + sdr_set_field(MSDC_CFG, MSDC_CFG_CKMOD, mode);
2454 + sdr_set_field(MSDC_CFG, MSDC_CFG_CKDIV, div);
2455 +
2456 + /* wait clock stable */
2457 + while (!(sdr_read32(MSDC_CFG) & MSDC_CFG_CKSTB));
2458 +
2459 + host->sclk = sclk;
2460 + host->mclk = hz;
2461 + msdc_set_timeout(host, host->timeout_ns, host->timeout_clks); // need?
2462 +
2463 + INIT_MSG("================");
2464 + INIT_MSG("!!! Set<%dKHz> Source<%dKHz> -> sclk<%dKHz>", hz/1000, hclk/1000, sclk/1000);
2465 + INIT_MSG("================");
2466 +
2467 + msdc_irq_restore(flags);
2468 +}
2469 +
2470 +/* Fix me. when need to abort */
2471 +static void msdc_abort_data(struct msdc_host *host)
2472 +{
2473 + u32 base = host->base;
2474 + struct mmc_command *stop = host->mrq->stop;
2475 +
2476 + ERR_MSG("Need to Abort. dma<%d>", host->dma_xfer);
2477 +
2478 + msdc_reset();
2479 + msdc_clr_fifo();
2480 + msdc_clr_int();
2481 +
2482 + // need to check FIFO count 0 ?
2483 +
2484 + if (stop) { /* try to stop, but may not success */
2485 + ERR_MSG("stop when abort CMD<%d>", stop->opcode);
2486 + (void)msdc_do_command(host, stop, 0, CMD_TIMEOUT);
2487 + }
2488 +
2489 + //if (host->mclk >= 25000000) {
2490 + // msdc_set_mclk(host, 0, host->mclk >> 1);
2491 + //}
2492 +}
2493 +
2494 +#if 0 /* --- by chhung */
2495 +static void msdc_pin_config(struct msdc_host *host, int mode)
2496 +{
2497 + struct msdc_hw *hw = host->hw;
2498 + u32 base = host->base;
2499 + int pull = (mode == MSDC_PIN_PULL_UP) ? GPIO_PULL_UP : GPIO_PULL_DOWN;
2500 +
2501 + /* Config WP pin */
2502 + if (hw->flags & MSDC_WP_PIN_EN) {
2503 + if (hw->config_gpio_pin) /* NULL */
2504 + hw->config_gpio_pin(MSDC_WP_PIN, pull);
2505 + }
2506 +
2507 + switch (mode) {
2508 + case MSDC_PIN_PULL_UP:
2509 + //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPU, 1); /* Check & FIXME */
2510 + //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPD, 0); /* Check & FIXME */
2511 + sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPU, 1);
2512 + sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPD, 0);
2513 + sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPU, 1);
2514 + sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPD, 0);
2515 + break;
2516 + case MSDC_PIN_PULL_DOWN:
2517 + //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPU, 0); /* Check & FIXME */
2518 + //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPD, 1); /* Check & FIXME */
2519 + sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPU, 0);
2520 + sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPD, 1);
2521 + sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPU, 0);
2522 + sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPD, 1);
2523 + break;
2524 + case MSDC_PIN_PULL_NONE:
2525 + default:
2526 + //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPU, 0); /* Check & FIXME */
2527 + //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPD, 0); /* Check & FIXME */
2528 + sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPU, 0);
2529 + sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPD, 0);
2530 + sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPU, 0);
2531 + sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPD, 0);
2532 + break;
2533 + }
2534 +
2535 + N_MSG(CFG, "Pins mode(%d), down(%d), up(%d)",
2536 + mode, MSDC_PIN_PULL_DOWN, MSDC_PIN_PULL_UP);
2537 +}
2538 +
2539 +void msdc_pin_reset(struct msdc_host *host, int mode)
2540 +{
2541 + struct msdc_hw *hw = (struct msdc_hw *)host->hw;
2542 + u32 base = host->base;
2543 + int pull = (mode == MSDC_PIN_PULL_UP) ? GPIO_PULL_UP : GPIO_PULL_DOWN;
2544 +
2545 + /* Config reset pin */
2546 + if (hw->flags & MSDC_RST_PIN_EN) {
2547 + if (hw->config_gpio_pin) /* NULL */
2548 + hw->config_gpio_pin(MSDC_RST_PIN, pull);
2549 +
2550 + if (mode == MSDC_PIN_PULL_UP) {
2551 + sdr_clr_bits(EMMC_IOCON, EMMC_IOCON_BOOTRST);
2552 + } else {
2553 + sdr_set_bits(EMMC_IOCON, EMMC_IOCON_BOOTRST);
2554 + }
2555 + }
2556 +}
2557 +
2558 +static void msdc_core_power(struct msdc_host *host, int on)
2559 +{
2560 + N_MSG(CFG, "Turn %s %s power (copower: %d -> %d)",
2561 + on ? "on" : "off", "core", host->core_power, on);
2562 +
2563 + if (on && host->core_power == 0) {
2564 + msdc_vcore_on(host);
2565 + host->core_power = 1;
2566 + msleep(1);
2567 + } else if (!on && host->core_power == 1) {
2568 + msdc_vcore_off(host);
2569 + host->core_power = 0;
2570 + msleep(1);
2571 + }
2572 +}
2573 +
2574 +static void msdc_host_power(struct msdc_host *host, int on)
2575 +{
2576 + N_MSG(CFG, "Turn %s %s power ", on ? "on" : "off", "host");
2577 +
2578 + if (on) {
2579 + //msdc_core_power(host, 1); // need do card detection.
2580 + msdc_pin_reset(host, MSDC_PIN_PULL_UP);
2581 + } else {
2582 + msdc_pin_reset(host, MSDC_PIN_PULL_DOWN);
2583 + //msdc_core_power(host, 0);
2584 + }
2585 +}
2586 +
2587 +static void msdc_card_power(struct msdc_host *host, int on)
2588 +{
2589 + N_MSG(CFG, "Turn %s %s power ", on ? "on" : "off", "card");
2590 +
2591 + if (on) {
2592 + msdc_pin_config(host, MSDC_PIN_PULL_UP);
2593 + if (host->hw->ext_power_on) {
2594 + host->hw->ext_power_on();
2595 + } else {
2596 + //msdc_vdd_on(host); // need todo card detection.
2597 + }
2598 + msleep(1);
2599 + } else {
2600 + if (host->hw->ext_power_off) {
2601 + host->hw->ext_power_off();
2602 + } else {
2603 + //msdc_vdd_off(host);
2604 + }
2605 + msdc_pin_config(host, MSDC_PIN_PULL_DOWN);
2606 + msleep(1);
2607 + }
2608 +}
2609 +
2610 +static void msdc_set_power_mode(struct msdc_host *host, u8 mode)
2611 +{
2612 + N_MSG(CFG, "Set power mode(%d)", mode);
2613 +
2614 + if (host->power_mode == MMC_POWER_OFF && mode != MMC_POWER_OFF) {
2615 + msdc_host_power(host, 1);
2616 + msdc_card_power(host, 1);
2617 + } else if (host->power_mode != MMC_POWER_OFF && mode == MMC_POWER_OFF) {
2618 + msdc_card_power(host, 0);
2619 + msdc_host_power(host, 0);
2620 + }
2621 + host->power_mode = mode;
2622 +}
2623 +#endif /* end of --- */
2624 +
2625 +#ifdef CONFIG_PM
2626 +/*
2627 + register as callback function of WIFI(combo_sdio_register_pm) .
2628 + can called by msdc_drv_suspend/resume too.
2629 +*/
2630 +static void msdc_pm(pm_message_t state, void *data)
2631 +{
2632 + struct msdc_host *host = (struct msdc_host *)data;
2633 + int evt = state.event;
2634 +
2635 + if (evt == PM_EVENT_USER_RESUME || evt == PM_EVENT_USER_SUSPEND) {
2636 + INIT_MSG("USR_%s: suspend<%d> power<%d>",
2637 + evt == PM_EVENT_USER_RESUME ? "EVENT_USER_RESUME" : "EVENT_USER_SUSPEND",
2638 + host->suspend, host->power_mode);
2639 + }
2640 +
2641 + if (evt == PM_EVENT_SUSPEND || evt == PM_EVENT_USER_SUSPEND) {
2642 + if (host->suspend) /* already suspend */ /* default 0*/
2643 + return;
2644 +
2645 + /* for memory card. already power off by mmc */
2646 + if (evt == PM_EVENT_SUSPEND && host->power_mode == MMC_POWER_OFF)
2647 + return;
2648 +
2649 + host->suspend = 1;
2650 + host->pm_state = state; /* default PMSG_RESUME */
2651 +
2652 + INIT_MSG("%s Suspend", evt == PM_EVENT_SUSPEND ? "PM" : "USR");
2653 + if(host->hw->flags & MSDC_SYS_SUSPEND) /* set for card */
2654 + (void)mmc_suspend_host(host->mmc);
2655 + else {
2656 + // host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY; /* just for double confirm */ /* --- by chhung */
2657 + mmc_remove_host(host->mmc);
2658 + }
2659 + } else if (evt == PM_EVENT_RESUME || evt == PM_EVENT_USER_RESUME) {
2660 + if (!host->suspend){
2661 + //ERR_MSG("warning: already resume");
2662 + return;
2663 + }
2664 +
2665 + /* No PM resume when USR suspend */
2666 + if (evt == PM_EVENT_RESUME && host->pm_state.event == PM_EVENT_USER_SUSPEND) {
2667 + ERR_MSG("PM Resume when in USR Suspend"); /* won't happen. */
2668 + return;
2669 + }
2670 +
2671 + host->suspend = 0;
2672 + host->pm_state = state;
2673 +
2674 + INIT_MSG("%s Resume", evt == PM_EVENT_RESUME ? "PM" : "USR");
2675 + if(host->hw->flags & MSDC_SYS_SUSPEND) { /* will not set for WIFI */
2676 + (void)mmc_resume_host(host->mmc);
2677 + }
2678 + else {
2679 + // host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY; /* --- by chhung */
2680 + mmc_add_host(host->mmc);
2681 + }
2682 + }
2683 +}
2684 +#endif
2685 +
2686 +/*--------------------------------------------------------------------------*/
2687 +/* mmc_host_ops members */
2688 +/*--------------------------------------------------------------------------*/
2689 +static unsigned int msdc_command_start(struct msdc_host *host,
2690 + struct mmc_command *cmd,
2691 + int tune, /* not used */
2692 + unsigned long timeout)
2693 +{
2694 + u32 base = host->base;
2695 + u32 opcode = cmd->opcode;
2696 + u32 rawcmd;
2697 + u32 wints = MSDC_INT_CMDRDY | MSDC_INT_RSPCRCERR | MSDC_INT_CMDTMO |
2698 + MSDC_INT_ACMDRDY | MSDC_INT_ACMDCRCERR | MSDC_INT_ACMDTMO |
2699 + MSDC_INT_ACMD19_DONE;
2700 +
2701 + u32 resp;
2702 + unsigned long tmo;
2703 +
2704 + /* Protocol layer does not provide response type, but our hardware needs
2705 + * to know exact type, not just size!
2706 + */
2707 + if (opcode == MMC_SEND_OP_COND || opcode == SD_APP_OP_COND)
2708 + resp = RESP_R3;
2709 + else if (opcode == MMC_SET_RELATIVE_ADDR || opcode == SD_SEND_RELATIVE_ADDR)
2710 + resp = (mmc_cmd_type(cmd) == MMC_CMD_BCR) ? RESP_R6 : RESP_R1;
2711 + else if (opcode == MMC_FAST_IO)
2712 + resp = RESP_R4;
2713 + else if (opcode == MMC_GO_IRQ_STATE)
2714 + resp = RESP_R5;
2715 + else if (opcode == MMC_SELECT_CARD)
2716 + resp = (cmd->arg != 0) ? RESP_R1B : RESP_NONE;
2717 + else if (opcode == SD_IO_RW_DIRECT || opcode == SD_IO_RW_EXTENDED)
2718 + resp = RESP_R1; /* SDIO workaround. */
2719 + else if (opcode == SD_SEND_IF_COND && (mmc_cmd_type(cmd) == MMC_CMD_BCR))
2720 + resp = RESP_R1;
2721 + else {
2722 + switch (mmc_resp_type(cmd)) {
2723 + case MMC_RSP_R1:
2724 + resp = RESP_R1;
2725 + break;
2726 + case MMC_RSP_R1B:
2727 + resp = RESP_R1B;
2728 + break;
2729 + case MMC_RSP_R2:
2730 + resp = RESP_R2;
2731 + break;
2732 + case MMC_RSP_R3:
2733 + resp = RESP_R3;
2734 + break;
2735 + case MMC_RSP_NONE:
2736 + default:
2737 + resp = RESP_NONE;
2738 + break;
2739 + }
2740 + }
2741 +
2742 + cmd->error = 0;
2743 + /* rawcmd :
2744 + * vol_swt << 30 | auto_cmd << 28 | blklen << 16 | go_irq << 15 |
2745 + * stop << 14 | rw << 13 | dtype << 11 | rsptyp << 7 | brk << 6 | opcode
2746 + */
2747 + rawcmd = opcode | msdc_rsp[resp] << 7 | host->blksz << 16;
2748 +
2749 + if (opcode == MMC_READ_MULTIPLE_BLOCK) {
2750 + rawcmd |= (2 << 11);
2751 + } else if (opcode == MMC_READ_SINGLE_BLOCK) {
2752 + rawcmd |= (1 << 11);
2753 + } else if (opcode == MMC_WRITE_MULTIPLE_BLOCK) {
2754 + rawcmd |= ((2 << 11) | (1 << 13));
2755 + } else if (opcode == MMC_WRITE_BLOCK) {
2756 + rawcmd |= ((1 << 11) | (1 << 13));
2757 + } else if (opcode == SD_IO_RW_EXTENDED) {
2758 + if (cmd->data->flags & MMC_DATA_WRITE)
2759 + rawcmd |= (1 << 13);
2760 + if (cmd->data->blocks > 1)
2761 + rawcmd |= (2 << 11);
2762 + else
2763 + rawcmd |= (1 << 11);
2764 + } else if (opcode == SD_IO_RW_DIRECT && cmd->flags == (unsigned int)-1) {
2765 + rawcmd |= (1 << 14);
2766 + } else if ((opcode == SD_APP_SEND_SCR) ||
2767 + (opcode == SD_APP_SEND_NUM_WR_BLKS) ||
2768 + (opcode == SD_SWITCH && (mmc_cmd_type(cmd) == MMC_CMD_ADTC)) ||
2769 + (opcode == SD_APP_SD_STATUS && (mmc_cmd_type(cmd) == MMC_CMD_ADTC)) ||
2770 + (opcode == MMC_SEND_EXT_CSD && (mmc_cmd_type(cmd) == MMC_CMD_ADTC))) {
2771 + rawcmd |= (1 << 11);
2772 + } else if (opcode == MMC_STOP_TRANSMISSION) {
2773 + rawcmd |= (1 << 14);
2774 + rawcmd &= ~(0x0FFF << 16);
2775 + }
2776 +
2777 + N_MSG(CMD, "CMD<%d><0x%.8x> Arg<0x%.8x>", opcode , rawcmd, cmd->arg);
2778 +
2779 + tmo = jiffies + timeout;
2780 +
2781 + if (opcode == MMC_SEND_STATUS) {
2782 + for (;;) {
2783 + if (!sdc_is_cmd_busy())
2784 + break;
2785 +
2786 + if (time_after(jiffies, tmo)) {
2787 + ERR_MSG("XXX cmd_busy timeout: before CMD<%d>", opcode);
2788 + cmd->error = (unsigned int)-ETIMEDOUT;
2789 + msdc_reset();
2790 + goto end;
2791 + }
2792 + }
2793 + }else {
2794 + for (;;) {
2795 + if (!sdc_is_busy())
2796 + break;
2797 + if (time_after(jiffies, tmo)) {
2798 + ERR_MSG("XXX sdc_busy timeout: before CMD<%d>", opcode);
2799 + cmd->error = (unsigned int)-ETIMEDOUT;
2800 + msdc_reset();
2801 + goto end;
2802 + }
2803 + }
2804 + }
2805 +
2806 + //BUG_ON(in_interrupt());
2807 + host->cmd = cmd;
2808 + host->cmd_rsp = resp;
2809 +
2810 + init_completion(&host->cmd_done);
2811 +
2812 + sdr_set_bits(MSDC_INTEN, wints);
2813 + sdc_send_cmd(rawcmd, cmd->arg);
2814 +
2815 +end:
2816 + return cmd->error;
2817 +}
2818 +
2819 +static unsigned int msdc_command_resp(struct msdc_host *host,
2820 + struct mmc_command *cmd,
2821 + int tune,
2822 + unsigned long timeout)
2823 +{
2824 + u32 base = host->base;
2825 + u32 opcode = cmd->opcode;
2826 + //u32 rawcmd;
2827 + u32 resp;
2828 + u32 wints = MSDC_INT_CMDRDY | MSDC_INT_RSPCRCERR | MSDC_INT_CMDTMO |
2829 + MSDC_INT_ACMDRDY | MSDC_INT_ACMDCRCERR | MSDC_INT_ACMDTMO |
2830 + MSDC_INT_ACMD19_DONE;
2831 +
2832 + resp = host->cmd_rsp;
2833 +
2834 + BUG_ON(in_interrupt());
2835 + //init_completion(&host->cmd_done);
2836 + //sdr_set_bits(MSDC_INTEN, wints);
2837 +
2838 + spin_unlock(&host->lock);
2839 + if(!wait_for_completion_timeout(&host->cmd_done, 10*timeout)){
2840 + ERR_MSG("XXX CMD<%d> wait_for_completion timeout ARG<0x%.8x>", opcode, cmd->arg);
2841 + cmd->error = (unsigned int)-ETIMEDOUT;
2842 + msdc_reset();
2843 + }
2844 + spin_lock(&host->lock);
2845 +
2846 + sdr_clr_bits(MSDC_INTEN, wints);
2847 + host->cmd = NULL;
2848 +
2849 +//end:
2850 +#ifdef MT6575_SD_DEBUG
2851 + switch (resp) {
2852 + case RESP_NONE:
2853 + N_MSG(RSP, "CMD_RSP(%d): %d RSP(%d)", opcode, cmd->error, resp);
2854 + break;
2855 + case RESP_R2:
2856 + N_MSG(RSP, "CMD_RSP(%d): %d RSP(%d)= %.8x %.8x %.8x %.8x",
2857 + opcode, cmd->error, resp, cmd->resp[0], cmd->resp[1],
2858 + cmd->resp[2], cmd->resp[3]);
2859 + break;
2860 + default: /* Response types 1, 3, 4, 5, 6, 7(1b) */
2861 + N_MSG(RSP, "CMD_RSP(%d): %d RSP(%d)= 0x%.8x",
2862 + opcode, cmd->error, resp, cmd->resp[0]);
2863 + if (cmd->error == 0) {
2864 + switch (resp) {
2865 + case RESP_R1:
2866 + case RESP_R1B:
2867 + msdc_dump_card_status(host, cmd->resp[0]);
2868 + break;
2869 + case RESP_R3:
2870 + msdc_dump_ocr_reg(host, cmd->resp[0]);
2871 + break;
2872 + case RESP_R5:
2873 + msdc_dump_io_resp(host, cmd->resp[0]);
2874 + break;
2875 + case RESP_R6:
2876 + msdc_dump_rca_resp(host, cmd->resp[0]);
2877 + break;
2878 + }
2879 + }
2880 + break;
2881 + }
2882 +#endif
2883 +
2884 + /* do we need to save card's RCA when SD_SEND_RELATIVE_ADDR */
2885 +
2886 + if (!tune) {
2887 + return cmd->error;
2888 + }
2889 +
2890 + /* memory card CRC */
2891 + if(host->hw->flags & MSDC_REMOVABLE && cmd->error == (unsigned int)(-EIO) ) {
2892 + if (sdr_read32(SDC_CMD) & 0x1800) { /* check if has data phase */
2893 + msdc_abort_data(host);
2894 + } else {
2895 + /* do basic: reset*/
2896 + msdc_reset();
2897 + msdc_clr_fifo();
2898 + msdc_clr_int();
2899 + }
2900 + cmd->error = msdc_tune_cmdrsp(host,cmd);
2901 + }
2902 +
2903 + // check DAT0
2904 + /* if (resp == RESP_R1B) {
2905 + while ((sdr_read32(MSDC_PS) & 0x10000) != 0x10000);
2906 + } */
2907 + /* CMD12 Error Handle */
2908 +
2909 + return cmd->error;
2910 +}
2911 +
2912 +static unsigned int msdc_do_command(struct msdc_host *host,
2913 + struct mmc_command *cmd,
2914 + int tune,
2915 + unsigned long timeout)
2916 +{
2917 + if (msdc_command_start(host, cmd, tune, timeout))
2918 + goto end;
2919 +
2920 + if (msdc_command_resp(host, cmd, tune, timeout))
2921 + goto end;
2922 +
2923 +end:
2924 +
2925 + N_MSG(CMD, " return<%d> resp<0x%.8x>", cmd->error, cmd->resp[0]);
2926 + return cmd->error;
2927 +}
2928 +
2929 +/* The abort condition when PIO read/write
2930 + tmo:
2931 +*/
2932 +static int msdc_pio_abort(struct msdc_host *host, struct mmc_data *data, unsigned long tmo)
2933 +{
2934 + int ret = 0;
2935 + u32 base = host->base;
2936 +
2937 + if (atomic_read(&host->abort)) {
2938 + ret = 1;
2939 + }
2940 +
2941 + if (time_after(jiffies, tmo)) {
2942 + data->error = (unsigned int)-ETIMEDOUT;
2943 + ERR_MSG("XXX PIO Data Timeout: CMD<%d>", host->mrq->cmd->opcode);
2944 + ret = 1;
2945 + }
2946 +
2947 + if(ret) {
2948 + msdc_reset();
2949 + msdc_clr_fifo();
2950 + msdc_clr_int();
2951 + ERR_MSG("msdc pio find abort");
2952 + }
2953 + return ret;
2954 +}
2955 +
2956 +/*
2957 + Need to add a timeout, or WDT timeout, system reboot.
2958 +*/
2959 +// pio mode data read/write
2960 +static int msdc_pio_read(struct msdc_host *host, struct mmc_data *data)
2961 +{
2962 + struct scatterlist *sg = data->sg;
2963 + u32 base = host->base;
2964 + u32 num = data->sg_len;
2965 + u32 *ptr;
2966 + u8 *u8ptr;
2967 + u32 left = 0;
2968 + u32 count, size = 0;
2969 + u32 wints = MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR ;
2970 + unsigned long tmo = jiffies + DAT_TIMEOUT;
2971 +
2972 + sdr_set_bits(MSDC_INTEN, wints);
2973 + while (num) {
2974 + left = sg_dma_len(sg);
2975 + ptr = sg_virt(sg);
2976 + while (left) {
2977 + if ((left >= MSDC_FIFO_THD) && (msdc_rxfifocnt() >= MSDC_FIFO_THD)) {
2978 + count = MSDC_FIFO_THD >> 2;
2979 + do {
2980 + *ptr++ = msdc_fifo_read32();
2981 + } while (--count);
2982 + left -= MSDC_FIFO_THD;
2983 + } else if ((left < MSDC_FIFO_THD) && msdc_rxfifocnt() >= left) {
2984 + while (left > 3) {
2985 + *ptr++ = msdc_fifo_read32();
2986 + left -= 4;
2987 + }
2988 +
2989 + u8ptr = (u8 *)ptr;
2990 + while(left) {
2991 + * u8ptr++ = msdc_fifo_read8();
2992 + left--;
2993 + }
2994 + }
2995 +
2996 + if (msdc_pio_abort(host, data, tmo)) {
2997 + goto end;
2998 + }
2999 + }
3000 + size += sg_dma_len(sg);
3001 + sg = sg_next(sg); num--;
3002 + }
3003 +end:
3004 + data->bytes_xfered += size;
3005 + N_MSG(FIO, " PIO Read<%d>bytes", size);
3006 +
3007 + sdr_clr_bits(MSDC_INTEN, wints);
3008 + if(data->error) ERR_MSG("read pio data->error<%d> left<%d> size<%d>", data->error, left, size);
3009 + return data->error;
3010 +}
3011 +
3012 +/* please make sure won't using PIO when size >= 512
3013 + which means, memory card block read/write won't using pio
3014 + then don't need to handle the CMD12 when data error.
3015 +*/
3016 +static int msdc_pio_write(struct msdc_host* host, struct mmc_data *data)
3017 +{
3018 + u32 base = host->base;
3019 + struct scatterlist *sg = data->sg;
3020 + u32 num = data->sg_len;
3021 + u32 *ptr;
3022 + u8 *u8ptr;
3023 + u32 left;
3024 + u32 count, size = 0;
3025 + u32 wints = MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR ;
3026 + unsigned long tmo = jiffies + DAT_TIMEOUT;
3027 +
3028 + sdr_set_bits(MSDC_INTEN, wints);
3029 + while (num) {
3030 + left = sg_dma_len(sg);
3031 + ptr = sg_virt(sg);
3032 +
3033 + while (left) {
3034 + if (left >= MSDC_FIFO_SZ && msdc_txfifocnt() == 0) {
3035 + count = MSDC_FIFO_SZ >> 2;
3036 + do {
3037 + msdc_fifo_write32(*ptr); ptr++;
3038 + } while (--count);
3039 + left -= MSDC_FIFO_SZ;
3040 + } else if (left < MSDC_FIFO_SZ && msdc_txfifocnt() == 0) {
3041 + while (left > 3) {
3042 + msdc_fifo_write32(*ptr); ptr++;
3043 + left -= 4;
3044 + }
3045 +
3046 + u8ptr = (u8*)ptr;
3047 + while(left){
3048 + msdc_fifo_write8(*u8ptr); u8ptr++;
3049 + left--;
3050 + }
3051 + }
3052 +
3053 + if (msdc_pio_abort(host, data, tmo)) {
3054 + goto end;
3055 + }
3056 + }
3057 + size += sg_dma_len(sg);
3058 + sg = sg_next(sg); num--;
3059 + }
3060 +end:
3061 + data->bytes_xfered += size;
3062 + N_MSG(FIO, " PIO Write<%d>bytes", size);
3063 + if(data->error) ERR_MSG("write pio data->error<%d>", data->error);
3064 +
3065 + sdr_clr_bits(MSDC_INTEN, wints);
3066 + return data->error;
3067 +}
3068 +
3069 +#if 0 /* --- by chhung */
3070 +// DMA resume / start / stop
3071 +static void msdc_dma_resume(struct msdc_host *host)
3072 +{
3073 + u32 base = host->base;
3074 +
3075 + sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_RESUME, 1);
3076 +
3077 + N_MSG(DMA, "DMA resume");
3078 +}
3079 +#endif /* end of --- */
3080 +
3081 +static void msdc_dma_start(struct msdc_host *host)
3082 +{
3083 + u32 base = host->base;
3084 + u32 wints = MSDC_INTEN_XFER_COMPL | MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR ;
3085 +
3086 + sdr_set_bits(MSDC_INTEN, wints);
3087 + //dsb(); /* --- by chhung */
3088 + sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_START, 1);
3089 +
3090 + N_MSG(DMA, "DMA start");
3091 +}
3092 +
3093 +static void msdc_dma_stop(struct msdc_host *host)
3094 +{
3095 + u32 base = host->base;
3096 + //u32 retries=500;
3097 + u32 wints = MSDC_INTEN_XFER_COMPL | MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR ;
3098 +
3099 + N_MSG(DMA, "DMA status: 0x%.8x",sdr_read32(MSDC_DMA_CFG));
3100 + //while (sdr_read32(MSDC_DMA_CFG) & MSDC_DMA_CFG_STS);
3101 +
3102 + sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_STOP, 1);
3103 + while (sdr_read32(MSDC_DMA_CFG) & MSDC_DMA_CFG_STS);
3104 +
3105 + //dsb(); /* --- by chhung */
3106 + sdr_clr_bits(MSDC_INTEN, wints); /* Not just xfer_comp */
3107 +
3108 + N_MSG(DMA, "DMA stop");
3109 +}
3110 +
3111 +#if 0 /* --- by chhung */
3112 +/* dump a gpd list */
3113 +static void msdc_dma_dump(struct msdc_host *host, struct msdc_dma *dma)
3114 +{
3115 + gpd_t *gpd = dma->gpd;
3116 + bd_t *bd = dma->bd;
3117 + bd_t *ptr;
3118 + int i = 0;
3119 + int p_to_v;
3120 +
3121 + if (dma->mode != MSDC_MODE_DMA_DESC) {
3122 + return;
3123 + }
3124 +
3125 + ERR_MSG("try to dump gpd and bd");
3126 +
3127 + /* dump gpd */
3128 + ERR_MSG(".gpd<0x%.8x> gpd_phy<0x%.8x>", (int)gpd, (int)dma->gpd_addr);
3129 + ERR_MSG("...hwo <%d>", gpd->hwo );
3130 + ERR_MSG("...bdp <%d>", gpd->bdp );
3131 + ERR_MSG("...chksum<0x%.8x>", gpd->chksum );
3132 + //ERR_MSG("...intr <0x%.8x>", gpd->intr );
3133 + ERR_MSG("...next <0x%.8x>", (int)gpd->next );
3134 + ERR_MSG("...ptr <0x%.8x>", (int)gpd->ptr );
3135 + ERR_MSG("...buflen<0x%.8x>", gpd->buflen );
3136 + //ERR_MSG("...extlen<0x%.8x>", gpd->extlen );
3137 + //ERR_MSG("...arg <0x%.8x>", gpd->arg );
3138 + //ERR_MSG("...blknum<0x%.8x>", gpd->blknum );
3139 + //ERR_MSG("...cmd <0x%.8x>", gpd->cmd );
3140 +
3141 + /* dump bd */
3142 + ERR_MSG(".bd<0x%.8x> bd_phy<0x%.8x> gpd_ptr<0x%.8x>", (int)bd, (int)dma->bd_addr, (int)gpd->ptr);
3143 + ptr = bd;
3144 + p_to_v = ((u32)bd - (u32)dma->bd_addr);
3145 + while (1) {
3146 + ERR_MSG(".bd[%d]", i); i++;
3147 + ERR_MSG("...eol <%d>", ptr->eol );
3148 + ERR_MSG("...chksum<0x%.8x>", ptr->chksum );
3149 + //ERR_MSG("...blkpad<0x%.8x>", ptr->blkpad );
3150 + //ERR_MSG("...dwpad <0x%.8x>", ptr->dwpad );
3151 + ERR_MSG("...next <0x%.8x>", (int)ptr->next );
3152 + ERR_MSG("...ptr <0x%.8x>", (int)ptr->ptr );
3153 + ERR_MSG("...buflen<0x%.8x>", (int)ptr->buflen );
3154 +
3155 + if (ptr->eol == 1) {
3156 + break;
3157 + }
3158 +
3159 + /* find the next bd, virtual address of ptr->next */
3160 + /* don't need to enable when use malloc */
3161 + //BUG_ON( (ptr->next + p_to_v)!=(ptr+1) );
3162 + //ERR_MSG(".next bd<0x%.8x><0x%.8x>", (ptr->next + p_to_v), (ptr+1));
3163 + ptr++;
3164 + }
3165 +
3166 + ERR_MSG("dump gpd and bd finished");
3167 +}
3168 +#endif /* end of --- */
3169 +
3170 +/* calc checksum */
3171 +static u8 msdc_dma_calcs(u8 *buf, u32 len)
3172 +{
3173 + u32 i, sum = 0;
3174 + for (i = 0; i < len; i++) {
3175 + sum += buf[i];
3176 + }
3177 + return 0xFF - (u8)sum;
3178 +}
3179 +
3180 +/* gpd bd setup + dma registers */
3181 +static int msdc_dma_config(struct msdc_host *host, struct msdc_dma *dma)
3182 +{
3183 + u32 base = host->base;
3184 + u32 sglen = dma->sglen;
3185 + //u32 i, j, num, bdlen, arg, xfersz;
3186 + u32 j, num, bdlen;
3187 + u8 blkpad, dwpad, chksum;
3188 + struct scatterlist *sg = dma->sg;
3189 + gpd_t *gpd;
3190 + bd_t *bd;
3191 +
3192 + switch (dma->mode) {
3193 + case MSDC_MODE_DMA_BASIC:
3194 + BUG_ON(dma->xfersz > 65535);
3195 + BUG_ON(dma->sglen != 1);
3196 + sdr_write32(MSDC_DMA_SA, PHYSADDR(sg_dma_address(sg)));
3197 + sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_LASTBUF, 1);
3198 +//#if defined (CONFIG_RALINK_MT7620)
3199 + if (ralink_soc == MT762X_SOC_MT7620A)
3200 + sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_XFERSZ, sg_dma_len(sg));
3201 +//#elif defined (CONFIG_RALINK_MT7621) || defined (CONFIG_RALINK_MT7628)
3202 + else
3203 + sdr_write32((volatile u32*)(RALINK_MSDC_BASE+0xa8), sg_dma_len(sg));
3204 +//#endif
3205 + sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_BRUSTSZ, dma->burstsz);
3206 + sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_MODE, 0);
3207 + break;
3208 + case MSDC_MODE_DMA_DESC:
3209 + blkpad = (dma->flags & DMA_FLAG_PAD_BLOCK) ? 1 : 0;
3210 + dwpad = (dma->flags & DMA_FLAG_PAD_DWORD) ? 1 : 0;
3211 + chksum = (dma->flags & DMA_FLAG_EN_CHKSUM) ? 1 : 0;
3212 +
3213 + /* calculate the required number of gpd */
3214 + num = (sglen + MAX_BD_PER_GPD - 1) / MAX_BD_PER_GPD;
3215 + BUG_ON(num !=1 );
3216 +
3217 + gpd = dma->gpd;
3218 + bd = dma->bd;
3219 + bdlen = sglen;
3220 +
3221 + /* modify gpd*/
3222 + //gpd->intr = 0;
3223 + gpd->hwo = 1; /* hw will clear it */
3224 + gpd->bdp = 1;
3225 + gpd->chksum = 0; /* need to clear first. */
3226 + gpd->chksum = (chksum ? msdc_dma_calcs((u8 *)gpd, 16) : 0);
3227 +
3228 + /* modify bd*/
3229 + for (j = 0; j < bdlen; j++) {
3230 + msdc_init_bd(&bd[j], blkpad, dwpad, sg_dma_address(sg), sg_dma_len(sg));
3231 + if(j == bdlen - 1) {
3232 + bd[j].eol = 1; /* the last bd */
3233 + } else {
3234 + bd[j].eol = 0;
3235 + }
3236 + bd[j].chksum = 0; /* checksume need to clear first */
3237 + bd[j].chksum = (chksum ? msdc_dma_calcs((u8 *)(&bd[j]), 16) : 0);
3238 + sg++;
3239 + }
3240 +
3241 + dma->used_gpd += 2;
3242 + dma->used_bd += bdlen;
3243 +
3244 + sdr_set_field(MSDC_DMA_CFG, MSDC_DMA_CFG_DECSEN, chksum);
3245 + sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_BRUSTSZ, dma->burstsz);
3246 + sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_MODE, 1);
3247 +
3248 + sdr_write32(MSDC_DMA_SA, PHYSADDR((u32)dma->gpd_addr));
3249 + break;
3250 +
3251 + default:
3252 + break;
3253 + }
3254 +
3255 + N_MSG(DMA, "DMA_CTRL = 0x%x", sdr_read32(MSDC_DMA_CTRL));
3256 + N_MSG(DMA, "DMA_CFG = 0x%x", sdr_read32(MSDC_DMA_CFG));
3257 + N_MSG(DMA, "DMA_SA = 0x%x", sdr_read32(MSDC_DMA_SA));
3258 +
3259 + return 0;
3260 +}
3261 +
3262 +static void msdc_dma_setup(struct msdc_host *host, struct msdc_dma *dma,
3263 + struct scatterlist *sg, unsigned int sglen)
3264 +{
3265 + BUG_ON(sglen > MAX_BD_NUM); /* not support currently */
3266 +
3267 + dma->sg = sg;
3268 + dma->flags = DMA_FLAG_EN_CHKSUM;
3269 + //dma->flags = DMA_FLAG_NONE; /* CHECKME */
3270 + dma->sglen = sglen;
3271 + dma->xfersz = host->xfer_size;
3272 + dma->burstsz = MSDC_BRUST_64B;
3273 +
3274 + if (sglen == 1 && sg_dma_len(sg) <= MAX_DMA_CNT)
3275 + dma->mode = MSDC_MODE_DMA_BASIC;
3276 + else
3277 + dma->mode = MSDC_MODE_DMA_DESC;
3278 +
3279 + N_MSG(DMA, "DMA mode<%d> sglen<%d> xfersz<%d>", dma->mode, dma->sglen, dma->xfersz);
3280 +
3281 + msdc_dma_config(host, dma);
3282 +
3283 + /*if (dma->mode == MSDC_MODE_DMA_DESC) {
3284 + //msdc_dma_dump(host, dma);
3285 + } */
3286 +}
3287 +
3288 +/* set block number before send command */
3289 +static void msdc_set_blknum(struct msdc_host *host, u32 blknum)
3290 +{
3291 + u32 base = host->base;
3292 +
3293 + sdr_write32(SDC_BLK_NUM, blknum);
3294 +}
3295 +
3296 +static int msdc_do_request(struct mmc_host*mmc, struct mmc_request*mrq)
3297 +{
3298 + struct msdc_host *host = mmc_priv(mmc);
3299 + struct mmc_command *cmd;
3300 + struct mmc_data *data;
3301 + u32 base = host->base;
3302 + //u32 intsts = 0;
3303 + unsigned int left=0;
3304 + int dma = 0, read = 1, dir = DMA_FROM_DEVICE, send_type=0;
3305 +
3306 + #define SND_DAT 0
3307 + #define SND_CMD 1
3308 +
3309 + BUG_ON(mmc == NULL);
3310 + BUG_ON(mrq == NULL);
3311 +
3312 + host->error = 0;
3313 + atomic_set(&host->abort, 0);
3314 +
3315 + cmd = mrq->cmd;
3316 + data = mrq->cmd->data;
3317 +
3318 +#if 0 /* --- by chhung */
3319 + //if(host->id ==1){
3320 + N_MSG(OPS, "enable clock!");
3321 + msdc_ungate_clock(host->id);
3322 + //}
3323 +#endif /* end of --- */
3324 +
3325 + if (!data) {
3326 + send_type=SND_CMD;
3327 + if (msdc_do_command(host, cmd, 1, CMD_TIMEOUT) != 0) {
3328 + goto done;
3329 + }
3330 + } else {
3331 + BUG_ON(data->blksz > HOST_MAX_BLKSZ);
3332 + send_type=SND_DAT;
3333 +
3334 + data->error = 0;
3335 + read = data->flags & MMC_DATA_READ ? 1 : 0;
3336 + host->data = data;
3337 + host->xfer_size = data->blocks * data->blksz;
3338 + host->blksz = data->blksz;
3339 +
3340 + /* deside the transfer mode */
3341 + if (drv_mode[host->id] == MODE_PIO) {
3342 + host->dma_xfer = dma = 0;
3343 + } else if (drv_mode[host->id] == MODE_DMA) {
3344 + host->dma_xfer = dma = 1;
3345 + } else if (drv_mode[host->id] == MODE_SIZE_DEP) {
3346 + host->dma_xfer = dma = ((host->xfer_size >= dma_size[host->id]) ? 1 : 0);
3347 + }
3348 +
3349 + if (read) {
3350 + if ((host->timeout_ns != data->timeout_ns) ||
3351 + (host->timeout_clks != data->timeout_clks)) {
3352 + msdc_set_timeout(host, data->timeout_ns, data->timeout_clks);
3353 + }
3354 + }
3355 +
3356 + msdc_set_blknum(host, data->blocks);
3357 + //msdc_clr_fifo(); /* no need */
3358 +
3359 + if (dma) {
3360 + msdc_dma_on(); /* enable DMA mode first!! */
3361 + init_completion(&host->xfer_done);
3362 +
3363 + /* start the command first*/
3364 + if (msdc_command_start(host, cmd, 1, CMD_TIMEOUT) != 0)
3365 + goto done;
3366 +
3367 + dir = read ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
3368 + (void)dma_map_sg(mmc_dev(mmc), data->sg, data->sg_len, dir);
3369 + msdc_dma_setup(host, &host->dma, data->sg, data->sg_len);
3370 +
3371 + /* then wait command done */
3372 + if (msdc_command_resp(host, cmd, 1, CMD_TIMEOUT) != 0)
3373 + goto done;
3374 +
3375 + /* for read, the data coming too fast, then CRC error
3376 + start DMA no business with CRC. */
3377 + //init_completion(&host->xfer_done);
3378 + msdc_dma_start(host);
3379 +
3380 + spin_unlock(&host->lock);
3381 + if(!wait_for_completion_timeout(&host->xfer_done, DAT_TIMEOUT)){
3382 + ERR_MSG("XXX CMD<%d> wait xfer_done<%d> timeout!!", cmd->opcode, data->blocks * data->blksz);
3383 + ERR_MSG(" DMA_SA = 0x%x", sdr_read32(MSDC_DMA_SA));
3384 + ERR_MSG(" DMA_CA = 0x%x", sdr_read32(MSDC_DMA_CA));
3385 + ERR_MSG(" DMA_CTRL = 0x%x", sdr_read32(MSDC_DMA_CTRL));
3386 + ERR_MSG(" DMA_CFG = 0x%x", sdr_read32(MSDC_DMA_CFG));
3387 + data->error = (unsigned int)-ETIMEDOUT;
3388 +
3389 + msdc_reset();
3390 + msdc_clr_fifo();
3391 + msdc_clr_int();
3392 + }
3393 + spin_lock(&host->lock);
3394 + msdc_dma_stop(host);
3395 + } else {
3396 + /* Firstly: send command */
3397 + if (msdc_do_command(host, cmd, 1, CMD_TIMEOUT) != 0) {
3398 + goto done;
3399 + }
3400 +
3401 + /* Secondly: pio data phase */
3402 + if (read) {
3403 + if (msdc_pio_read(host, data)){
3404 + goto done;
3405 + }
3406 + } else {
3407 + if (msdc_pio_write(host, data)) {
3408 + goto done;
3409 + }
3410 + }
3411 +
3412 + /* For write case: make sure contents in fifo flushed to device */
3413 + if (!read) {
3414 + while (1) {
3415 + left=msdc_txfifocnt();
3416 + if (left == 0) {
3417 + break;
3418 + }
3419 + if (msdc_pio_abort(host, data, jiffies + DAT_TIMEOUT)) {
3420 + break;
3421 + /* Fix me: what about if data error, when stop ? how to? */
3422 + }
3423 + }
3424 + } else {
3425 + /* Fix me: read case: need to check CRC error */
3426 + }
3427 +
3428 + /* For write case: SDCBUSY and Xfer_Comp will assert when DAT0 not busy.
3429 + For read case : SDCBUSY and Xfer_Comp will assert when last byte read out from FIFO.
3430 + */
3431 +
3432 + /* try not to wait xfer_comp interrupt.
3433 + the next command will check SDC_BUSY.
3434 + SDC_BUSY means xfer_comp assert
3435 + */
3436 +
3437 + } // PIO mode
3438 +
3439 + /* Last: stop transfer */
3440 + if (data->stop){
3441 + if (msdc_do_command(host, data->stop, 0, CMD_TIMEOUT) != 0) {
3442 + goto done;
3443 + }
3444 + }
3445 + }
3446 +
3447 +done:
3448 + if (data != NULL) {
3449 + host->data = NULL;
3450 + host->dma_xfer = 0;
3451 + if (dma != 0) {
3452 + msdc_dma_off();
3453 + host->dma.used_bd = 0;
3454 + host->dma.used_gpd = 0;
3455 + dma_unmap_sg(mmc_dev(mmc), data->sg, data->sg_len, dir);
3456 + }
3457 + host->blksz = 0;
3458 +
3459 +#if 0 // don't stop twice!
3460 + if(host->hw->flags & MSDC_REMOVABLE && data->error) {
3461 + msdc_abort_data(host);
3462 + /* reset in IRQ, stop command has issued. -> No need */
3463 + }
3464 +#endif
3465 +
3466 + N_MSG(OPS, "CMD<%d> data<%s %s> blksz<%d> block<%d> error<%d>",cmd->opcode, (dma? "dma":"pio"),
3467 + (read ? "read ":"write") ,data->blksz, data->blocks, data->error);
3468 + }
3469 +
3470 +#if 0 /* --- by chhung */
3471 +#if 1
3472 + //if(host->id==1) {
3473 + if(send_type==SND_CMD) {
3474 + if(cmd->opcode == MMC_SEND_STATUS) {
3475 + if((cmd->resp[0] & CARD_READY_FOR_DATA) ||(CARD_CURRENT_STATE(cmd->resp[0]) != 7)){
3476 + N_MSG(OPS,"disable clock, CMD13 IDLE");
3477 + msdc_gate_clock(host->id);
3478 + }
3479 + } else {
3480 + N_MSG(OPS,"disable clock, CMD<%d>", cmd->opcode);
3481 + msdc_gate_clock(host->id);
3482 + }
3483 + } else {
3484 + if(read) {
3485 + N_MSG(OPS,"disable clock!!! Read CMD<%d>",cmd->opcode);
3486 + msdc_gate_clock(host->id);
3487 + }
3488 + }
3489 + //}
3490 +#else
3491 + msdc_gate_clock(host->id);
3492 +#endif
3493 +#endif /* end of --- */
3494 +
3495 + if (mrq->cmd->error) host->error = 0x001;
3496 + if (mrq->data && mrq->data->error) host->error |= 0x010;
3497 + if (mrq->stop && mrq->stop->error) host->error |= 0x100;
3498 +
3499 + //if (host->error) ERR_MSG("host->error<%d>", host->error);
3500 +
3501 + return host->error;
3502 +}
3503 +
3504 +static int msdc_app_cmd(struct mmc_host *mmc, struct msdc_host *host)
3505 +{
3506 + struct mmc_command cmd;
3507 + struct mmc_request mrq;
3508 + u32 err;
3509 +
3510 + memset(&cmd, 0, sizeof(struct mmc_command));
3511 + cmd.opcode = MMC_APP_CMD;
3512 +#if 0 /* bug: we meet mmc->card is null when ACMD6 */
3513 + cmd.arg = mmc->card->rca << 16;
3514 +#else
3515 + cmd.arg = host->app_cmd_arg;
3516 +#endif
3517 + cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC;
3518 +
3519 + memset(&mrq, 0, sizeof(struct mmc_request));
3520 + mrq.cmd = &cmd; cmd.mrq = &mrq;
3521 + cmd.data = NULL;
3522 +
3523 + err = msdc_do_command(host, &cmd, 0, CMD_TIMEOUT);
3524 + return err;
3525 +}
3526 +
3527 +static int msdc_tune_cmdrsp(struct msdc_host*host, struct mmc_command *cmd)
3528 +{
3529 + int result = -1;
3530 + u32 base = host->base;
3531 + u32 rsmpl, cur_rsmpl, orig_rsmpl;
3532 + u32 rrdly, cur_rrdly = 0xffffffff, orig_rrdly;
3533 + u32 skip = 1;
3534 +
3535 + /* ==== don't support 3.0 now ====
3536 + 1: R_SMPL[1]
3537 + 2: PAD_CMD_RESP_RXDLY[26:22]
3538 + ==========================*/
3539 +
3540 + // save the previous tune result
3541 + sdr_get_field(MSDC_IOCON, MSDC_IOCON_RSPL, orig_rsmpl);
3542 + sdr_get_field(MSDC_PAD_TUNE, MSDC_PAD_TUNE_CMDRRDLY, orig_rrdly);
3543 +
3544 + rrdly = 0;
3545 + do {
3546 + for (rsmpl = 0; rsmpl < 2; rsmpl++) {
3547 + /* Lv1: R_SMPL[1] */
3548 + cur_rsmpl = (orig_rsmpl + rsmpl) % 2;
3549 + if (skip == 1) {
3550 + skip = 0;
3551 + continue;
3552 + }
3553 + sdr_set_field(MSDC_IOCON, MSDC_IOCON_RSPL, cur_rsmpl);
3554 +
3555 + if (host->app_cmd) {
3556 + result = msdc_app_cmd(host->mmc, host);
3557 + if (result) {
3558 + ERR_MSG("TUNE_CMD app_cmd<%d> failed: RESP_RXDLY<%d>,R_SMPL<%d>",
3559 + host->mrq->cmd->opcode, cur_rrdly, cur_rsmpl);
3560 + continue;
3561 + }
3562 + }
3563 + result = msdc_do_command(host, cmd, 0, CMD_TIMEOUT); // not tune.
3564 + ERR_MSG("TUNE_CMD<%d> %s PAD_CMD_RESP_RXDLY[26:22]<%d> R_SMPL[1]<%d>", cmd->opcode,
3565 + (result == 0) ? "PASS" : "FAIL", cur_rrdly, cur_rsmpl);
3566 +
3567 + if (result == 0) {
3568 + return 0;
3569 + }
3570 + if (result != (unsigned int)(-EIO)) {
3571 + ERR_MSG("TUNE_CMD<%d> Error<%d> not -EIO", cmd->opcode, result);
3572 + return result;
3573 + }
3574 +
3575 + /* should be EIO */
3576 + if (sdr_read32(SDC_CMD) & 0x1800) { /* check if has data phase */
3577 + msdc_abort_data(host);
3578 + }
3579 + }
3580 +
3581 + /* Lv2: PAD_CMD_RESP_RXDLY[26:22] */
3582 + cur_rrdly = (orig_rrdly + rrdly + 1) % 32;
3583 + sdr_set_field(MSDC_PAD_TUNE, MSDC_PAD_TUNE_CMDRRDLY, cur_rrdly);
3584 + }while (++rrdly < 32);
3585 +
3586 + return result;
3587 +}
3588 +
3589 +/* Support SD2.0 Only */
3590 +static int msdc_tune_bread(struct mmc_host *mmc, struct mmc_request *mrq)
3591 +{
3592 + struct msdc_host *host = mmc_priv(mmc);
3593 + u32 base = host->base;
3594 + u32 ddr=0;
3595 + u32 dcrc=0;
3596 + u32 rxdly, cur_rxdly0, cur_rxdly1;
3597 + u32 dsmpl, cur_dsmpl, orig_dsmpl;
3598 + u32 cur_dat0, cur_dat1, cur_dat2, cur_dat3;
3599 + u32 cur_dat4, cur_dat5, cur_dat6, cur_dat7;
3600 + u32 orig_dat0, orig_dat1, orig_dat2, orig_dat3;
3601 + u32 orig_dat4, orig_dat5, orig_dat6, orig_dat7;
3602 + int result = -1;
3603 + u32 skip = 1;
3604 +
3605 + sdr_get_field(MSDC_IOCON, MSDC_IOCON_DSPL, orig_dsmpl);
3606 +
3607 + /* Tune Method 2. */
3608 + sdr_set_field(MSDC_IOCON, MSDC_IOCON_DDLSEL, 1);
3609 +
3610 + rxdly = 0;
3611 + do {
3612 + for (dsmpl = 0; dsmpl < 2; dsmpl++) {
3613 + cur_dsmpl = (orig_dsmpl + dsmpl) % 2;
3614 + if (skip == 1) {
3615 + skip = 0;
3616 + continue;
3617 + }
3618 + sdr_set_field(MSDC_IOCON, MSDC_IOCON_DSPL, cur_dsmpl);
3619 +
3620 + if (host->app_cmd) {
3621 + result = msdc_app_cmd(host->mmc, host);
3622 + if (result) {
3623 + ERR_MSG("TUNE_BREAD app_cmd<%d> failed", host->mrq->cmd->opcode);
3624 + continue;
3625 + }
3626 + }
3627 + result = msdc_do_request(mmc,mrq);
3628 +
3629 + sdr_get_field(SDC_DCRC_STS, SDC_DCRC_STS_POS|SDC_DCRC_STS_NEG, dcrc); /* RO */
3630 + if (!ddr) dcrc &= ~SDC_DCRC_STS_NEG;
3631 + ERR_MSG("TUNE_BREAD<%s> dcrc<0x%x> DATRDDLY0/1<0x%x><0x%x> dsmpl<0x%x>",
3632 + (result == 0 && dcrc == 0) ? "PASS" : "FAIL", dcrc,
3633 + sdr_read32(MSDC_DAT_RDDLY0), sdr_read32(MSDC_DAT_RDDLY1), cur_dsmpl);
3634 +
3635 + /* Fix me: result is 0, but dcrc is still exist */
3636 + if (result == 0 && dcrc == 0) {
3637 + goto done;
3638 + } else {
3639 + /* there is a case: command timeout, and data phase not processed */
3640 + if (mrq->data->error != 0 && mrq->data->error != (unsigned int)(-EIO)) {
3641 + ERR_MSG("TUNE_READ: result<0x%x> cmd_error<%d> data_error<%d>",
3642 + result, mrq->cmd->error, mrq->data->error);
3643 + goto done;
3644 + }
3645 + }
3646 + }
3647 +
3648 + cur_rxdly0 = sdr_read32(MSDC_DAT_RDDLY0);
3649 + cur_rxdly1 = sdr_read32(MSDC_DAT_RDDLY1);
3650 +
3651 + /* E1 ECO. YD: Reverse */
3652 + if (sdr_read32(MSDC_ECO_VER) >= 4) {
3653 + orig_dat0 = (cur_rxdly0 >> 24) & 0x1F;
3654 + orig_dat1 = (cur_rxdly0 >> 16) & 0x1F;
3655 + orig_dat2 = (cur_rxdly0 >> 8) & 0x1F;
3656 + orig_dat3 = (cur_rxdly0 >> 0) & 0x1F;
3657 + orig_dat4 = (cur_rxdly1 >> 24) & 0x1F;
3658 + orig_dat5 = (cur_rxdly1 >> 16) & 0x1F;
3659 + orig_dat6 = (cur_rxdly1 >> 8) & 0x1F;
3660 + orig_dat7 = (cur_rxdly1 >> 0) & 0x1F;
3661 + } else {
3662 + orig_dat0 = (cur_rxdly0 >> 0) & 0x1F;
3663 + orig_dat1 = (cur_rxdly0 >> 8) & 0x1F;
3664 + orig_dat2 = (cur_rxdly0 >> 16) & 0x1F;
3665 + orig_dat3 = (cur_rxdly0 >> 24) & 0x1F;
3666 + orig_dat4 = (cur_rxdly1 >> 0) & 0x1F;
3667 + orig_dat5 = (cur_rxdly1 >> 8) & 0x1F;
3668 + orig_dat6 = (cur_rxdly1 >> 16) & 0x1F;
3669 + orig_dat7 = (cur_rxdly1 >> 24) & 0x1F;
3670 + }
3671 +
3672 + if (ddr) {
3673 + cur_dat0 = (dcrc & (1 << 0) || dcrc & (1 << 8)) ? ((orig_dat0 + 1) % 32) : orig_dat0;
3674 + cur_dat1 = (dcrc & (1 << 1) || dcrc & (1 << 9)) ? ((orig_dat1 + 1) % 32) : orig_dat1;
3675 + cur_dat2 = (dcrc & (1 << 2) || dcrc & (1 << 10)) ? ((orig_dat2 + 1) % 32) : orig_dat2;
3676 + cur_dat3 = (dcrc & (1 << 3) || dcrc & (1 << 11)) ? ((orig_dat3 + 1) % 32) : orig_dat3;
3677 + } else {
3678 + cur_dat0 = (dcrc & (1 << 0)) ? ((orig_dat0 + 1) % 32) : orig_dat0;
3679 + cur_dat1 = (dcrc & (1 << 1)) ? ((orig_dat1 + 1) % 32) : orig_dat1;
3680 + cur_dat2 = (dcrc & (1 << 2)) ? ((orig_dat2 + 1) % 32) : orig_dat2;
3681 + cur_dat3 = (dcrc & (1 << 3)) ? ((orig_dat3 + 1) % 32) : orig_dat3;
3682 + }
3683 + cur_dat4 = (dcrc & (1 << 4)) ? ((orig_dat4 + 1) % 32) : orig_dat4;
3684 + cur_dat5 = (dcrc & (1 << 5)) ? ((orig_dat5 + 1) % 32) : orig_dat5;
3685 + cur_dat6 = (dcrc & (1 << 6)) ? ((orig_dat6 + 1) % 32) : orig_dat6;
3686 + cur_dat7 = (dcrc & (1 << 7)) ? ((orig_dat7 + 1) % 32) : orig_dat7;
3687 +
3688 + cur_rxdly0 = (cur_dat0 << 24) | (cur_dat1 << 16) | (cur_dat2 << 8) | (cur_dat3 << 0);
3689 + cur_rxdly1 = (cur_dat4 << 24) | (cur_dat5 << 16) | (cur_dat6 << 8) | (cur_dat7 << 0);
3690 +
3691 + sdr_write32(MSDC_DAT_RDDLY0, cur_rxdly0);
3692 + sdr_write32(MSDC_DAT_RDDLY1, cur_rxdly1);
3693 +
3694 + } while (++rxdly < 32);
3695 +
3696 +done:
3697 + return result;
3698 +}
3699 +
3700 +static int msdc_tune_bwrite(struct mmc_host *mmc,struct mmc_request *mrq)
3701 +{
3702 + struct msdc_host *host = mmc_priv(mmc);
3703 + u32 base = host->base;
3704 +
3705 + u32 wrrdly, cur_wrrdly = 0xffffffff, orig_wrrdly;
3706 + u32 dsmpl, cur_dsmpl, orig_dsmpl;
3707 + u32 rxdly, cur_rxdly0;
3708 + u32 orig_dat0, orig_dat1, orig_dat2, orig_dat3;
3709 + u32 cur_dat0, cur_dat1, cur_dat2, cur_dat3;
3710 + int result = -1;
3711 + u32 skip = 1;
3712 +
3713 + // MSDC_IOCON_DDR50CKD need to check. [Fix me]
3714 +
3715 + sdr_get_field(MSDC_PAD_TUNE, MSDC_PAD_TUNE_DATWRDLY, orig_wrrdly);
3716 + sdr_get_field(MSDC_IOCON, MSDC_IOCON_DSPL, orig_dsmpl );
3717 +
3718 + /* Tune Method 2. just DAT0 */
3719 + sdr_set_field(MSDC_IOCON, MSDC_IOCON_DDLSEL, 1);
3720 + cur_rxdly0 = sdr_read32(MSDC_DAT_RDDLY0);
3721 +
3722 + /* E1 ECO. YD: Reverse */
3723 + if (sdr_read32(MSDC_ECO_VER) >= 4) {
3724 + orig_dat0 = (cur_rxdly0 >> 24) & 0x1F;
3725 + orig_dat1 = (cur_rxdly0 >> 16) & 0x1F;
3726 + orig_dat2 = (cur_rxdly0 >> 8) & 0x1F;
3727 + orig_dat3 = (cur_rxdly0 >> 0) & 0x1F;
3728 + } else {
3729 + orig_dat0 = (cur_rxdly0 >> 0) & 0x1F;
3730 + orig_dat1 = (cur_rxdly0 >> 8) & 0x1F;
3731 + orig_dat2 = (cur_rxdly0 >> 16) & 0x1F;
3732 + orig_dat3 = (cur_rxdly0 >> 24) & 0x1F;
3733 + }
3734 +
3735 + rxdly = 0;
3736 + do {
3737 + wrrdly = 0;
3738 + do {
3739 + for (dsmpl = 0; dsmpl < 2; dsmpl++) {
3740 + cur_dsmpl = (orig_dsmpl + dsmpl) % 2;
3741 + if (skip == 1) {
3742 + skip = 0;
3743 + continue;
3744 + }
3745 + sdr_set_field(MSDC_IOCON, MSDC_IOCON_DSPL, cur_dsmpl);
3746 +
3747 + if (host->app_cmd) {
3748 + result = msdc_app_cmd(host->mmc, host);
3749 + if (result) {
3750 + ERR_MSG("TUNE_BWRITE app_cmd<%d> failed", host->mrq->cmd->opcode);
3751 + continue;
3752 + }
3753 + }
3754 + result = msdc_do_request(mmc,mrq);
3755 +
3756 + ERR_MSG("TUNE_BWRITE<%s> DSPL<%d> DATWRDLY<%d> MSDC_DAT_RDDLY0<0x%x>",
3757 + result == 0 ? "PASS" : "FAIL",
3758 + cur_dsmpl, cur_wrrdly, cur_rxdly0);
3759 +
3760 + if (result == 0) {
3761 + goto done;
3762 + }
3763 + else {
3764 + /* there is a case: command timeout, and data phase not processed */
3765 + if (mrq->data->error != (unsigned int)(-EIO)) {
3766 + ERR_MSG("TUNE_READ: result<0x%x> cmd_error<%d> data_error<%d>",
3767 + result, mrq->cmd->error, mrq->data->error);
3768 + goto done;
3769 + }
3770 + }
3771 + }
3772 + cur_wrrdly = (orig_wrrdly + wrrdly + 1) % 32;
3773 + sdr_set_field(MSDC_PAD_TUNE, MSDC_PAD_TUNE_DATWRDLY, cur_wrrdly);
3774 + } while (++wrrdly < 32);
3775 +
3776 + cur_dat0 = (orig_dat0 + rxdly) % 32; /* only adjust bit-1 for crc */
3777 + cur_dat1 = orig_dat1;
3778 + cur_dat2 = orig_dat2;
3779 + cur_dat3 = orig_dat3;
3780 +
3781 + cur_rxdly0 = (cur_dat0 << 24) | (cur_dat1 << 16) | (cur_dat2 << 8) | (cur_dat3 << 0);
3782 + sdr_write32(MSDC_DAT_RDDLY0, cur_rxdly0);
3783 + } while (++rxdly < 32);
3784 +
3785 +done:
3786 + return result;
3787 +}
3788 +
3789 +static int msdc_get_card_status(struct mmc_host *mmc, struct msdc_host *host, u32 *status)
3790 +{
3791 + struct mmc_command cmd;
3792 + struct mmc_request mrq;
3793 + u32 err;
3794 +
3795 + memset(&cmd, 0, sizeof(struct mmc_command));
3796 + cmd.opcode = MMC_SEND_STATUS;
3797 + if (mmc->card) {
3798 + cmd.arg = mmc->card->rca << 16;
3799 + } else {
3800 + ERR_MSG("cmd13 mmc card is null");
3801 + cmd.arg = host->app_cmd_arg;
3802 + }
3803 + cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
3804 +
3805 + memset(&mrq, 0, sizeof(struct mmc_request));
3806 + mrq.cmd = &cmd; cmd.mrq = &mrq;
3807 + cmd.data = NULL;
3808 +
3809 + err = msdc_do_command(host, &cmd, 1, CMD_TIMEOUT);
3810 +
3811 + if (status) {
3812 + *status = cmd.resp[0];
3813 + }
3814 +
3815 + return err;
3816 +}
3817 +
3818 +static int msdc_check_busy(struct mmc_host *mmc, struct msdc_host *host)
3819 +{
3820 + u32 err = 0;
3821 + u32 status = 0;
3822 +
3823 + do {
3824 + err = msdc_get_card_status(mmc, host, &status);
3825 + if (err) return err;
3826 + /* need cmd12? */
3827 + ERR_MSG("cmd<13> resp<0x%x>", status);
3828 + } while (R1_CURRENT_STATE(status) == 7);
3829 +
3830 + return err;
3831 +}
3832 +
3833 +/* failed when msdc_do_request */
3834 +static int msdc_tune_request(struct mmc_host *mmc, struct mmc_request *mrq)
3835 +{
3836 + struct msdc_host *host = mmc_priv(mmc);
3837 + struct mmc_command *cmd;
3838 + struct mmc_data *data;
3839 + //u32 base = host->base;
3840 + int ret=0, read;
3841 +
3842 + cmd = mrq->cmd;
3843 + data = mrq->cmd->data;
3844 +
3845 + read = data->flags & MMC_DATA_READ ? 1 : 0;
3846 +
3847 + if (read) {
3848 + if (data->error == (unsigned int)(-EIO)) {
3849 + ret = msdc_tune_bread(mmc,mrq);
3850 + }
3851 + } else {
3852 + ret = msdc_check_busy(mmc, host);
3853 + if (ret){
3854 + ERR_MSG("XXX cmd13 wait program done failed");
3855 + return ret;
3856 + }
3857 + /* CRC and TO */
3858 + /* Fix me: don't care card status? */
3859 + ret = msdc_tune_bwrite(mmc,mrq);
3860 + }
3861 +
3862 + return ret;
3863 +}
3864 +
3865 +/* ops.request */
3866 +static void msdc_ops_request(struct mmc_host *mmc,struct mmc_request *mrq)
3867 +{
3868 + struct msdc_host *host = mmc_priv(mmc);
3869 +
3870 + //=== for sdio profile ===
3871 +#if 0 /* --- by chhung */
3872 + u32 old_H32, old_L32, new_H32, new_L32;
3873 + u32 ticks = 0, opcode = 0, sizes = 0, bRx = 0;
3874 +#endif /* end of --- */
3875 +
3876 + if(host->mrq){
3877 + ERR_MSG("XXX host->mrq<0x%.8x>", (int)host->mrq);
3878 + BUG();
3879 + }
3880 +
3881 + if (!is_card_present(host) || host->power_mode == MMC_POWER_OFF) {
3882 + ERR_MSG("cmd<%d> card<%d> power<%d>", mrq->cmd->opcode, is_card_present(host), host->power_mode);
3883 + mrq->cmd->error = (unsigned int)-ENOMEDIUM;
3884 +
3885 +#if 1
3886 + mrq->done(mrq); // call done directly.
3887 +#else
3888 + mrq->cmd->retries = 0; // please don't retry.
3889 + mmc_request_done(mmc, mrq);
3890 +#endif
3891 +
3892 + return;
3893 + }
3894 +
3895 + /* start to process */
3896 + spin_lock(&host->lock);
3897 +#if 0 /* --- by chhung */
3898 + if (sdio_pro_enable) { //=== for sdio profile ===
3899 + if (mrq->cmd->opcode == 52 || mrq->cmd->opcode == 53) {
3900 + GPT_GetCounter64(&old_L32, &old_H32);
3901 + }
3902 + }
3903 +#endif /* end of --- */
3904 +
3905 + host->mrq = mrq;
3906 +
3907 + if (msdc_do_request(mmc,mrq)) {
3908 + if(host->hw->flags & MSDC_REMOVABLE && ralink_soc == MT762X_SOC_MT7621AT && mrq->data && mrq->data->error) {
3909 + msdc_tune_request(mmc,mrq);
3910 + }
3911 + }
3912 +
3913 + /* ==== when request done, check if app_cmd ==== */
3914 + if (mrq->cmd->opcode == MMC_APP_CMD) {
3915 + host->app_cmd = 1;
3916 + host->app_cmd_arg = mrq->cmd->arg; /* save the RCA */
3917 + } else {
3918 + host->app_cmd = 0;
3919 + //host->app_cmd_arg = 0;
3920 + }
3921 +
3922 + host->mrq = NULL;
3923 +
3924 +#if 0 /* --- by chhung */
3925 + //=== for sdio profile ===
3926 + if (sdio_pro_enable) {
3927 + if (mrq->cmd->opcode == 52 || mrq->cmd->opcode == 53) {
3928 + GPT_GetCounter64(&new_L32, &new_H32);
3929 + ticks = msdc_time_calc(old_L32, old_H32, new_L32, new_H32);
3930 +
3931 + opcode = mrq->cmd->opcode;
3932 + if (mrq->cmd->data) {
3933 + sizes = mrq->cmd->data->blocks * mrq->cmd->data->blksz;
3934 + bRx = mrq->cmd->data->flags & MMC_DATA_READ ? 1 : 0 ;
3935 + } else {
3936 + bRx = mrq->cmd->arg & 0x80000000 ? 1 : 0;
3937 + }
3938 +
3939 + if (!mrq->cmd->error) {
3940 + msdc_performance(opcode, sizes, bRx, ticks);
3941 + }
3942 + }
3943 + }
3944 +#endif /* end of --- */
3945 + spin_unlock(&host->lock);
3946 +
3947 + mmc_request_done(mmc, mrq);
3948 +
3949 + return;
3950 +}
3951 +
3952 +/* called by ops.set_ios */
3953 +static void msdc_set_buswidth(struct msdc_host *host, u32 width)
3954 +{
3955 + u32 base = host->base;
3956 + u32 val = sdr_read32(SDC_CFG);
3957 +
3958 + val &= ~SDC_CFG_BUSWIDTH;
3959 +
3960 + switch (width) {
3961 + default:
3962 + case MMC_BUS_WIDTH_1:
3963 + width = 1;
3964 + val |= (MSDC_BUS_1BITS << 16);
3965 + break;
3966 + case MMC_BUS_WIDTH_4:
3967 + val |= (MSDC_BUS_4BITS << 16);
3968 + break;
3969 + case MMC_BUS_WIDTH_8:
3970 + val |= (MSDC_BUS_8BITS << 16);
3971 + break;
3972 + }
3973 +
3974 + sdr_write32(SDC_CFG, val);
3975 +
3976 + N_MSG(CFG, "Bus Width = %d", width);
3977 +}
3978 +
3979 +/* ops.set_ios */
3980 +static void msdc_ops_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
3981 +{
3982 + struct msdc_host *host = mmc_priv(mmc);
3983 + struct msdc_hw *hw=host->hw;
3984 + u32 base = host->base;
3985 + u32 ddr = 0;
3986 +
3987 +#ifdef MT6575_SD_DEBUG
3988 + static char *vdd[] = {
3989 + "1.50v", "1.55v", "1.60v", "1.65v", "1.70v", "1.80v", "1.90v",
3990 + "2.00v", "2.10v", "2.20v", "2.30v", "2.40v", "2.50v", "2.60v",
3991 + "2.70v", "2.80v", "2.90v", "3.00v", "3.10v", "3.20v", "3.30v",
3992 + "3.40v", "3.50v", "3.60v"
3993 + };
3994 + static char *power_mode[] = {
3995 + "OFF", "UP", "ON"
3996 + };
3997 + static char *bus_mode[] = {
3998 + "UNKNOWN", "OPENDRAIN", "PUSHPULL"
3999 + };
4000 + static char *timing[] = {
4001 + "LEGACY", "MMC_HS", "SD_HS"
4002 + };
4003 +
4004 + printk("SET_IOS: CLK(%dkHz), BUS(%s), BW(%u), PWR(%s), VDD(%s), TIMING(%s)",
4005 + ios->clock / 1000, bus_mode[ios->bus_mode],
4006 + (ios->bus_width == MMC_BUS_WIDTH_4) ? 4 : 1,
4007 + power_mode[ios->power_mode], vdd[ios->vdd], timing[ios->timing]);
4008 +#endif
4009 +
4010 + msdc_set_buswidth(host, ios->bus_width);
4011 +
4012 + /* Power control ??? */
4013 + switch (ios->power_mode) {
4014 + case MMC_POWER_OFF:
4015 + case MMC_POWER_UP:
4016 + // msdc_set_power_mode(host, ios->power_mode); /* --- by chhung */
4017 + break;
4018 + case MMC_POWER_ON:
4019 + host->power_mode = MMC_POWER_ON;
4020 + break;
4021 + default:
4022 + break;
4023 + }
4024 +
4025 + /* Clock control */
4026 + if (host->mclk != ios->clock) {
4027 + if(ios->clock > 25000000) {
4028 + //if (!(host->hw->flags & MSDC_REMOVABLE)) {
4029 + INIT_MSG("SD data latch edge<%d>", hw->data_edge);
4030 + sdr_set_field(MSDC_IOCON, MSDC_IOCON_RSPL, hw->cmd_edge);
4031 + sdr_set_field(MSDC_IOCON, MSDC_IOCON_DSPL, hw->data_edge);
4032 + //} /* for tuning debug */
4033 + } else { /* default value */
4034 + sdr_write32(MSDC_IOCON, 0x00000000);
4035 + // sdr_write32(MSDC_DAT_RDDLY0, 0x00000000);
4036 + sdr_write32(MSDC_DAT_RDDLY0, 0x10101010); // for MT7620 E2 and afterward
4037 + sdr_write32(MSDC_DAT_RDDLY1, 0x00000000);
4038 + // sdr_write32(MSDC_PAD_TUNE, 0x00000000);
4039 + sdr_write32(MSDC_PAD_TUNE, 0x84101010); // for MT7620 E2 and afterward
4040 + }
4041 + msdc_set_mclk(host, ddr, ios->clock);
4042 + }
4043 +}
4044 +
4045 +/* ops.get_ro */
4046 +static int msdc_ops_get_ro(struct mmc_host *mmc)
4047 +{
4048 + struct msdc_host *host = mmc_priv(mmc);
4049 + u32 base = host->base;
4050 + unsigned long flags;
4051 + int ro = 0;
4052 +
4053 + if (host->hw->flags & MSDC_WP_PIN_EN) { /* set for card */
4054 + spin_lock_irqsave(&host->lock, flags);
4055 + ro = (sdr_read32(MSDC_PS) >> 31);
4056 + spin_unlock_irqrestore(&host->lock, flags);
4057 + }
4058 + return ro;
4059 +}
4060 +
4061 +/* ops.get_cd */
4062 +static int msdc_ops_get_cd(struct mmc_host *mmc)
4063 +{
4064 + struct msdc_host *host = mmc_priv(mmc);
4065 + u32 base = host->base;
4066 + unsigned long flags;
4067 + int present = 1;
4068 +
4069 + /* for sdio, MSDC_REMOVABLE not set, always return 1 */
4070 + if (!(host->hw->flags & MSDC_REMOVABLE)) {
4071 + /* For sdio, read H/W always get<1>, but may timeout some times */
4072 +#if 1
4073 + host->card_inserted = 1;
4074 + return 1;
4075 +#else
4076 + host->card_inserted = (host->pm_state.event == PM_EVENT_USER_RESUME) ? 1 : 0;
4077 + INIT_MSG("sdio ops_get_cd<%d>", host->card_inserted);
4078 + return host->card_inserted;
4079 +#endif
4080 + }
4081 +
4082 + /* MSDC_CD_PIN_EN set for card */
4083 + if (host->hw->flags & MSDC_CD_PIN_EN) {
4084 + spin_lock_irqsave(&host->lock, flags);
4085 +#if 0
4086 + present = host->card_inserted; /* why not read from H/W: Fix me*/
4087 +#else
4088 + // CD
4089 + if (cd_active_low)
4090 + present = (sdr_read32(MSDC_PS) & MSDC_PS_CDSTS) ? 0 : 1;
4091 + else
4092 + present = (sdr_read32(MSDC_PS) & MSDC_PS_CDSTS) ? 1 : 0;
4093 + if (host->mmc->caps & MMC_CAP_NEEDS_POLL)
4094 + present = 1;
4095 + host->card_inserted = present;
4096 +#endif
4097 + spin_unlock_irqrestore(&host->lock, flags);
4098 + } else {
4099 + present = 0; /* TODO? Check DAT3 pins for card detection */
4100 + }
4101 +
4102 + INIT_MSG("ops_get_cd return<%d>", present);
4103 + return present;
4104 +}
4105 +
4106 +/* ops.enable_sdio_irq */
4107 +static void msdc_ops_enable_sdio_irq(struct mmc_host *mmc, int enable)
4108 +{
4109 + struct msdc_host *host = mmc_priv(mmc);
4110 + struct msdc_hw *hw = host->hw;
4111 + u32 base = host->base;
4112 + u32 tmp;
4113 +
4114 + if (hw->flags & MSDC_EXT_SDIO_IRQ) { /* yes for sdio */
4115 + if (enable) {
4116 + hw->enable_sdio_eirq(); /* combo_sdio_enable_eirq */
4117 + } else {
4118 + hw->disable_sdio_eirq(); /* combo_sdio_disable_eirq */
4119 + }
4120 + } else {
4121 + ERR_MSG("XXX "); /* so never enter here */
4122 + tmp = sdr_read32(SDC_CFG);
4123 + /* FIXME. Need to interrupt gap detection */
4124 + if (enable) {
4125 + tmp |= (SDC_CFG_SDIOIDE | SDC_CFG_SDIOINTWKUP);
4126 + } else {
4127 + tmp &= ~(SDC_CFG_SDIOIDE | SDC_CFG_SDIOINTWKUP);
4128 + }
4129 + sdr_write32(SDC_CFG, tmp);
4130 + }
4131 +}
4132 +
4133 +static struct mmc_host_ops mt_msdc_ops = {
4134 + .request = msdc_ops_request,
4135 + .set_ios = msdc_ops_set_ios,
4136 + .get_ro = msdc_ops_get_ro,
4137 + .get_cd = msdc_ops_get_cd,
4138 + .enable_sdio_irq = msdc_ops_enable_sdio_irq,
4139 +};
4140 +
4141 +/*--------------------------------------------------------------------------*/
4142 +/* interrupt handler */
4143 +/*--------------------------------------------------------------------------*/
4144 +static irqreturn_t msdc_irq(int irq, void *dev_id)
4145 +{
4146 + struct msdc_host *host = (struct msdc_host *)dev_id;
4147 + struct mmc_data *data = host->data;
4148 + struct mmc_command *cmd = host->cmd;
4149 + u32 base = host->base;
4150 +
4151 + u32 cmdsts = MSDC_INT_RSPCRCERR | MSDC_INT_CMDTMO | MSDC_INT_CMDRDY |
4152 + MSDC_INT_ACMDCRCERR | MSDC_INT_ACMDTMO | MSDC_INT_ACMDRDY |
4153 + MSDC_INT_ACMD19_DONE;
4154 + u32 datsts = MSDC_INT_DATCRCERR |MSDC_INT_DATTMO;
4155 +
4156 + u32 intsts = sdr_read32(MSDC_INT);
4157 + u32 inten = sdr_read32(MSDC_INTEN); inten &= intsts;
4158 +
4159 + sdr_write32(MSDC_INT, intsts); /* clear interrupts */
4160 + /* MSG will cause fatal error */
4161 +
4162 + /* card change interrupt */
4163 + if (intsts & MSDC_INT_CDSC){
4164 + if (mtk_sw_poll)
4165 + return IRQ_HANDLED;
4166 + IRQ_MSG("MSDC_INT_CDSC irq<0x%.8x>", intsts);
4167 +#if 0 /* ---/+++ by chhung: fix slot mechanical bounce issue */
4168 + tasklet_hi_schedule(&host->card_tasklet);
4169 +#else
4170 + schedule_delayed_work(&host->card_delaywork, HZ);
4171 +#endif
4172 + /* tuning when plug card ? */
4173 + }
4174 +
4175 + /* sdio interrupt */
4176 + if (intsts & MSDC_INT_SDIOIRQ){
4177 + IRQ_MSG("XXX MSDC_INT_SDIOIRQ"); /* seems not sdio irq */
4178 + //mmc_signal_sdio_irq(host->mmc);
4179 + }
4180 +
4181 + /* transfer complete interrupt */
4182 + if (data != NULL) {
4183 + if (inten & MSDC_INT_XFER_COMPL) {
4184 + data->bytes_xfered = host->dma.xfersz;
4185 + complete(&host->xfer_done);
4186 + }
4187 +
4188 + if (intsts & datsts) {
4189 + /* do basic reset, or stop command will sdc_busy */
4190 + msdc_reset();
4191 + msdc_clr_fifo();
4192 + msdc_clr_int();
4193 + atomic_set(&host->abort, 1); /* For PIO mode exit */
4194 +
4195 + if (intsts & MSDC_INT_DATTMO){
4196 + IRQ_MSG("XXX CMD<%d> MSDC_INT_DATTMO", host->mrq->cmd->opcode);
4197 + data->error = (unsigned int)-ETIMEDOUT;
4198 + }
4199 + else if (intsts & MSDC_INT_DATCRCERR){
4200 + IRQ_MSG("XXX CMD<%d> MSDC_INT_DATCRCERR, SDC_DCRC_STS<0x%x>", host->mrq->cmd->opcode, sdr_read32(SDC_DCRC_STS));
4201 + data->error = (unsigned int)-EIO;
4202 + }
4203 +
4204 + //if(sdr_read32(MSDC_INTEN) & MSDC_INT_XFER_COMPL) {
4205 + if (host->dma_xfer) {
4206 + complete(&host->xfer_done); /* Read CRC come fast, XFER_COMPL not enabled */
4207 + } /* PIO mode can't do complete, because not init */
4208 + }
4209 + }
4210 +
4211 + /* command interrupts */
4212 + if ((cmd != NULL) && (intsts & cmdsts)) {
4213 + if ((intsts & MSDC_INT_CMDRDY) || (intsts & MSDC_INT_ACMDRDY) ||
4214 + (intsts & MSDC_INT_ACMD19_DONE)) {
4215 + u32 *rsp = &cmd->resp[0];
4216 +
4217 + switch (host->cmd_rsp) {
4218 + case RESP_NONE:
4219 + break;
4220 + case RESP_R2:
4221 + *rsp++ = sdr_read32(SDC_RESP3); *rsp++ = sdr_read32(SDC_RESP2);
4222 + *rsp++ = sdr_read32(SDC_RESP1); *rsp++ = sdr_read32(SDC_RESP0);
4223 + break;
4224 + default: /* Response types 1, 3, 4, 5, 6, 7(1b) */
4225 + if ((intsts & MSDC_INT_ACMDRDY) || (intsts & MSDC_INT_ACMD19_DONE)) {
4226 + *rsp = sdr_read32(SDC_ACMD_RESP);
4227 + } else {
4228 + *rsp = sdr_read32(SDC_RESP0);
4229 + }
4230 + break;
4231 + }
4232 + } else if ((intsts & MSDC_INT_RSPCRCERR) || (intsts & MSDC_INT_ACMDCRCERR)) {
4233 + if(intsts & MSDC_INT_ACMDCRCERR){
4234 + IRQ_MSG("XXX CMD<%d> MSDC_INT_ACMDCRCERR",cmd->opcode);
4235 + }
4236 + else {
4237 + IRQ_MSG("XXX CMD<%d> MSDC_INT_RSPCRCERR",cmd->opcode);
4238 + }
4239 + cmd->error = (unsigned int)-EIO;
4240 + } else if ((intsts & MSDC_INT_CMDTMO) || (intsts & MSDC_INT_ACMDTMO)) {
4241 + if(intsts & MSDC_INT_ACMDTMO){
4242 + IRQ_MSG("XXX CMD<%d> MSDC_INT_ACMDTMO",cmd->opcode);
4243 + }
4244 + else {
4245 + IRQ_MSG("XXX CMD<%d> MSDC_INT_CMDTMO",cmd->opcode);
4246 + }
4247 + cmd->error = (unsigned int)-ETIMEDOUT;
4248 + msdc_reset();
4249 + msdc_clr_fifo();
4250 + msdc_clr_int();
4251 + }
4252 + complete(&host->cmd_done);
4253 + }
4254 +
4255 + /* mmc irq interrupts */
4256 + if (intsts & MSDC_INT_MMCIRQ) {
4257 + printk(KERN_INFO "msdc[%d] MMCIRQ: SDC_CSTS=0x%.8x\r\n", host->id, sdr_read32(SDC_CSTS));
4258 + }
4259 +
4260 +#ifdef MT6575_SD_DEBUG
4261 + {
4262 + msdc_int_reg *int_reg = (msdc_int_reg*)&intsts;
4263 + N_MSG(INT, "IRQ_EVT(0x%x): MMCIRQ(%d) CDSC(%d), ACRDY(%d), ACTMO(%d), ACCRE(%d) AC19DN(%d)",
4264 + intsts,
4265 + int_reg->mmcirq,
4266 + int_reg->cdsc,
4267 + int_reg->atocmdrdy,
4268 + int_reg->atocmdtmo,
4269 + int_reg->atocmdcrc,
4270 + int_reg->atocmd19done);
4271 + N_MSG(INT, "IRQ_EVT(0x%x): SDIO(%d) CMDRDY(%d), CMDTMO(%d), RSPCRC(%d), CSTA(%d)",
4272 + intsts,
4273 + int_reg->sdioirq,
4274 + int_reg->cmdrdy,
4275 + int_reg->cmdtmo,
4276 + int_reg->rspcrc,
4277 + int_reg->csta);
4278 + N_MSG(INT, "IRQ_EVT(0x%x): XFCMP(%d) DXDONE(%d), DATTMO(%d), DATCRC(%d), DMAEMP(%d)",
4279 + intsts,
4280 + int_reg->xfercomp,
4281 + int_reg->dxferdone,
4282 + int_reg->dattmo,
4283 + int_reg->datcrc,
4284 + int_reg->dmaqempty);
4285 +
4286 + }
4287 +#endif
4288 +
4289 + return IRQ_HANDLED;
4290 +}
4291 +
4292 +/*--------------------------------------------------------------------------*/
4293 +/* platform_driver members */
4294 +/*--------------------------------------------------------------------------*/
4295 +/* called by msdc_drv_probe/remove */
4296 +static void msdc_enable_cd_irq(struct msdc_host *host, int enable)
4297 +{
4298 + struct msdc_hw *hw = host->hw;
4299 + u32 base = host->base;
4300 +
4301 + /* for sdio, not set */
4302 + if ((hw->flags & MSDC_CD_PIN_EN) == 0) {
4303 + /* Pull down card detection pin since it is not avaiable */
4304 + /*
4305 + if (hw->config_gpio_pin)
4306 + hw->config_gpio_pin(MSDC_CD_PIN, GPIO_PULL_DOWN);
4307 + */
4308 + sdr_clr_bits(MSDC_PS, MSDC_PS_CDEN);
4309 + sdr_clr_bits(MSDC_INTEN, MSDC_INTEN_CDSC);
4310 + sdr_clr_bits(SDC_CFG, SDC_CFG_INSWKUP);
4311 + return;
4312 + }
4313 +
4314 + N_MSG(CFG, "CD IRQ Eanable(%d)", enable);
4315 +
4316 + if (enable) {
4317 + if (hw->enable_cd_eirq) { /* not set, never enter */
4318 + hw->enable_cd_eirq();
4319 + } else {
4320 + /* card detection circuit relies on the core power so that the core power
4321 + * shouldn't be turned off. Here adds a reference count to keep
4322 + * the core power alive.
4323 + */
4324 + //msdc_vcore_on(host); //did in msdc_init_hw()
4325 +
4326 + if (hw->config_gpio_pin) /* NULL */
4327 + hw->config_gpio_pin(MSDC_CD_PIN, GPIO_PULL_UP);
4328 +
4329 + sdr_set_field(MSDC_PS, MSDC_PS_CDDEBOUNCE, DEFAULT_DEBOUNCE);
4330 + sdr_set_bits(MSDC_PS, MSDC_PS_CDEN);
4331 + sdr_set_bits(MSDC_INTEN, MSDC_INTEN_CDSC);
4332 + sdr_set_bits(SDC_CFG, SDC_CFG_INSWKUP); /* not in document! Fix me */
4333 + }
4334 + } else {
4335 + if (hw->disable_cd_eirq) {
4336 + hw->disable_cd_eirq();
4337 + } else {
4338 + if (hw->config_gpio_pin) /* NULL */
4339 + hw->config_gpio_pin(MSDC_CD_PIN, GPIO_PULL_DOWN);
4340 +
4341 + sdr_clr_bits(SDC_CFG, SDC_CFG_INSWKUP);
4342 + sdr_clr_bits(MSDC_PS, MSDC_PS_CDEN);
4343 + sdr_clr_bits(MSDC_INTEN, MSDC_INTEN_CDSC);
4344 +
4345 + /* Here decreases a reference count to core power since card
4346 + * detection circuit is shutdown.
4347 + */
4348 + //msdc_vcore_off(host);
4349 + }
4350 + }
4351 +}
4352 +
4353 +/* called by msdc_drv_probe */
4354 +static void msdc_init_hw(struct msdc_host *host)
4355 +{
4356 + u32 base = host->base;
4357 + struct msdc_hw *hw = host->hw;
4358 +
4359 + /* Power on */
4360 +#if 0 /* --- by chhung */
4361 + msdc_vcore_on(host);
4362 + msdc_pin_reset(host, MSDC_PIN_PULL_UP);
4363 + msdc_select_clksrc(host, hw->clk_src);
4364 + enable_clock(PERI_MSDC0_PDN + host->id, "SD");
4365 + msdc_vdd_on(host);
4366 +#endif /* end of --- */
4367 + /* Configure to MMC/SD mode */
4368 + sdr_set_field(MSDC_CFG, MSDC_CFG_MODE, MSDC_SDMMC);
4369 +
4370 + /* Reset */
4371 + msdc_reset();
4372 + msdc_clr_fifo();
4373 +
4374 + /* Disable card detection */
4375 + sdr_clr_bits(MSDC_PS, MSDC_PS_CDEN);
4376 +
4377 + /* Disable and clear all interrupts */
4378 + sdr_clr_bits(MSDC_INTEN, sdr_read32(MSDC_INTEN));
4379 + sdr_write32(MSDC_INT, sdr_read32(MSDC_INT));
4380 +
4381 +#if 1
4382 + /* reset tuning parameter */
4383 + sdr_write32(MSDC_PAD_CTL0, 0x00090000);
4384 + sdr_write32(MSDC_PAD_CTL1, 0x000A0000);
4385 + sdr_write32(MSDC_PAD_CTL2, 0x000A0000);
4386 + // sdr_write32(MSDC_PAD_TUNE, 0x00000000);
4387 + sdr_write32(MSDC_PAD_TUNE, 0x84101010); // for MT7620 E2 and afterward
4388 + // sdr_write32(MSDC_DAT_RDDLY0, 0x00000000);
4389 + sdr_write32(MSDC_DAT_RDDLY0, 0x10101010); // for MT7620 E2 and afterward
4390 + sdr_write32(MSDC_DAT_RDDLY1, 0x00000000);
4391 + sdr_write32(MSDC_IOCON, 0x00000000);
4392 +#if 0 // use MT7620 default value: 0x403c004f
4393 + sdr_write32(MSDC_PATCH_BIT0, 0x003C000F); /* bit0 modified: Rx Data Clock Source: 1 -> 2.0*/
4394 +#endif
4395 +
4396 + if (sdr_read32(MSDC_ECO_VER) >= 4) {
4397 + if (host->id == 1) {
4398 + sdr_set_field(MSDC_PATCH_BIT1, MSDC_PATCH_BIT1_WRDAT_CRCS, 1);
4399 + sdr_set_field(MSDC_PATCH_BIT1, MSDC_PATCH_BIT1_CMD_RSP, 1);
4400 +
4401 + /* internal clock: latch read data */
4402 + sdr_set_bits(MSDC_PATCH_BIT0, MSDC_PATCH_BIT_CKGEN_CK);
4403 + }
4404 + }
4405 +#endif
4406 +
4407 + /* for safety, should clear SDC_CFG.SDIO_INT_DET_EN & set SDC_CFG.SDIO in
4408 + pre-loader,uboot,kernel drivers. and SDC_CFG.SDIO_INT_DET_EN will be only
4409 + set when kernel driver wants to use SDIO bus interrupt */
4410 + /* Configure to enable SDIO mode. it's must otherwise sdio cmd5 failed */
4411 + sdr_set_bits(SDC_CFG, SDC_CFG_SDIO);
4412 +
4413 + /* disable detect SDIO device interupt function */
4414 + sdr_clr_bits(SDC_CFG, SDC_CFG_SDIOIDE);
4415 +
4416 + /* eneable SMT for glitch filter */
4417 + sdr_set_bits(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKSMT);
4418 + sdr_set_bits(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDSMT);
4419 + sdr_set_bits(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATSMT);
4420 +
4421 +#if 1
4422 + /* set clk, cmd, dat pad driving */
4423 + sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVN, hw->clk_drv);
4424 + sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVP, hw->clk_drv);
4425 + sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVN, hw->cmd_drv);
4426 + sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVP, hw->cmd_drv);
4427 + sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVN, hw->dat_drv);
4428 + sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVP, hw->dat_drv);
4429 +#else
4430 + sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVN, 0);
4431 + sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVP, 0);
4432 + sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVN, 0);
4433 + sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVP, 0);
4434 + sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVN, 0);
4435 + sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVP, 0);
4436 +#endif
4437 +
4438 + /* set sampling edge */
4439 +
4440 + /* write crc timeout detection */
4441 + sdr_set_field(MSDC_PATCH_BIT0, 1 << 30, 1);
4442 +
4443 + /* Configure to default data timeout */
4444 + sdr_set_field(SDC_CFG, SDC_CFG_DTOC, DEFAULT_DTOC);
4445 +
4446 + msdc_set_buswidth(host, MMC_BUS_WIDTH_1);
4447 +
4448 + N_MSG(FUC, "init hardware done!");
4449 +}
4450 +
4451 +/* called by msdc_drv_remove */
4452 +static void msdc_deinit_hw(struct msdc_host *host)
4453 +{
4454 + u32 base = host->base;
4455 +
4456 + /* Disable and clear all interrupts */
4457 + sdr_clr_bits(MSDC_INTEN, sdr_read32(MSDC_INTEN));
4458 + sdr_write32(MSDC_INT, sdr_read32(MSDC_INT));
4459 +
4460 + /* Disable card detection */
4461 + msdc_enable_cd_irq(host, 0);
4462 + // msdc_set_power_mode(host, MMC_POWER_OFF); /* make sure power down */ /* --- by chhung */
4463 +}
4464 +
4465 +/* init gpd and bd list in msdc_drv_probe */
4466 +static void msdc_init_gpd_bd(struct msdc_host *host, struct msdc_dma *dma)
4467 +{
4468 + gpd_t *gpd = dma->gpd;
4469 + bd_t *bd = dma->bd;
4470 + bd_t *ptr, *prev;
4471 +
4472 + /* we just support one gpd */
4473 + int bdlen = MAX_BD_PER_GPD;
4474 +
4475 + /* init the 2 gpd */
4476 + memset(gpd, 0, sizeof(gpd_t) * 2);
4477 + //gpd->next = (void *)virt_to_phys(gpd + 1); /* pointer to a null gpd, bug! kmalloc <-> virt_to_phys */
4478 + //gpd->next = (dma->gpd_addr + 1); /* bug */
4479 + gpd->next = (void *)((u32)dma->gpd_addr + sizeof(gpd_t));
4480 +
4481 + //gpd->intr = 0;
4482 + gpd->bdp = 1; /* hwo, cs, bd pointer */
4483 + //gpd->ptr = (void*)virt_to_phys(bd);
4484 + gpd->ptr = (void *)dma->bd_addr; /* physical address */
4485 +
4486 + memset(bd, 0, sizeof(bd_t) * bdlen);
4487 + ptr = bd + bdlen - 1;
4488 + //ptr->eol = 1; /* 0 or 1 [Fix me]*/
4489 + //ptr->next = 0;
4490 +
4491 + while (ptr != bd) {
4492 + prev = ptr - 1;
4493 + prev->next = (void *)(dma->bd_addr + sizeof(bd_t) *(ptr - bd));
4494 + ptr = prev;
4495 + }
4496 +}
4497 +
4498 +static int msdc_drv_probe(struct platform_device *pdev)
4499 +{
4500 + struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
4501 + __iomem void *base;
4502 + struct mmc_host *mmc;
4503 + struct resource *mem;
4504 + struct msdc_host *host;
4505 + struct msdc_hw *hw;
4506 + int ret, irq;
4507 +
4508 + pdev->dev.platform_data = &msdc0_hw;
4509 +
4510 + if (of_property_read_bool(pdev->dev.of_node, "mtk,wp-en"))
4511 + msdc0_hw.flags |= MSDC_WP_PIN_EN;
4512 +
4513 + /* Allocate MMC host for this device */
4514 + mmc = mmc_alloc_host(sizeof(struct msdc_host), &pdev->dev);
4515 + if (!mmc) return -ENOMEM;
4516 +
4517 + hw = (struct msdc_hw*)pdev->dev.platform_data;
4518 + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
4519 + irq = platform_get_irq(pdev, 0);
4520 +
4521 + //BUG_ON((!hw) || (!mem) || (irq < 0)); /* --- by chhung */
4522 +
4523 + base = devm_ioremap_resource(&pdev->dev, res);
4524 + if (IS_ERR(base))
4525 + return PTR_ERR(base);
4526 +
4527 + /* Set host parameters to mmc */
4528 + mmc->ops = &mt_msdc_ops;
4529 + mmc->f_min = HOST_MIN_MCLK;
4530 + mmc->f_max = HOST_MAX_MCLK;
4531 + mmc->ocr_avail = MSDC_OCR_AVAIL;
4532 +
4533 + /* For sd card: MSDC_SYS_SUSPEND | MSDC_WP_PIN_EN | MSDC_CD_PIN_EN | MSDC_REMOVABLE | MSDC_HIGHSPEED,
4534 + For sdio : MSDC_EXT_SDIO_IRQ | MSDC_HIGHSPEED */
4535 + if (hw->flags & MSDC_HIGHSPEED) {
4536 + mmc->caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;
4537 + }
4538 + if (hw->data_pins == 4) { /* current data_pins are all 4*/
4539 + mmc->caps |= MMC_CAP_4_BIT_DATA;
4540 + } else if (hw->data_pins == 8) {
4541 + mmc->caps |= MMC_CAP_8_BIT_DATA;
4542 + }
4543 + if ((hw->flags & MSDC_SDIO_IRQ) || (hw->flags & MSDC_EXT_SDIO_IRQ))
4544 + mmc->caps |= MMC_CAP_SDIO_IRQ; /* yes for sdio */
4545 +
4546 + cd_active_low = !of_property_read_bool(pdev->dev.of_node, "mediatek,cd-high");
4547 + mtk_sw_poll = of_property_read_bool(pdev->dev.of_node, "mediatek,cd-poll");
4548 +
4549 + if (mtk_sw_poll)
4550 + mmc->caps |= MMC_CAP_NEEDS_POLL;
4551 +
4552 + /* MMC core transfer sizes tunable parameters */
4553 +#if LINUX_VERSION_CODE > KERNEL_VERSION(3,10,0)
4554 + mmc->max_segs = MAX_HW_SGMTS;
4555 +#else
4556 + mmc->max_hw_segs = MAX_HW_SGMTS;
4557 + mmc->max_phys_segs = MAX_PHY_SGMTS;
4558 +#endif
4559 + mmc->max_seg_size = MAX_SGMT_SZ;
4560 + mmc->max_blk_size = HOST_MAX_BLKSZ;
4561 + mmc->max_req_size = MAX_REQ_SZ;
4562 + mmc->max_blk_count = mmc->max_req_size;
4563 +
4564 + host = mmc_priv(mmc);
4565 + host->hw = hw;
4566 + host->mmc = mmc;
4567 + BUG_ON(pdev->id < -1);
4568 + BUG_ON(pdev->id >= ARRAY_SIZE(drv_mode));
4569 + host->id = (pdev->id == -1) ? 0 : pdev->id;
4570 + host->error = 0;
4571 + host->irq = irq;
4572 + host->base = (unsigned long) base;
4573 + host->mclk = 0; /* mclk: the request clock of mmc sub-system */
4574 + host->hclk = hclks[hw->clk_src]; /* hclk: clock of clock source to msdc controller */
4575 + host->sclk = 0; /* sclk: the really clock after divition */
4576 + host->pm_state = PMSG_RESUME;
4577 + host->suspend = 0;
4578 + host->core_clkon = 0;
4579 + host->card_clkon = 0;
4580 + host->core_power = 0;
4581 + host->power_mode = MMC_POWER_OFF;
4582 +// host->card_inserted = hw->flags & MSDC_REMOVABLE ? 0 : 1;
4583 + host->timeout_ns = 0;
4584 + host->timeout_clks = DEFAULT_DTOC * 65536;
4585 +
4586 + host->mrq = NULL;
4587 + //init_MUTEX(&host->sem); /* we don't need to support multiple threads access */
4588 +
4589 + host->dma.used_gpd = 0;
4590 + host->dma.used_bd = 0;
4591 +
4592 + /* using dma_alloc_coherent*/ /* todo: using 1, for all 4 slots */
4593 + host->dma.gpd = dma_alloc_coherent(NULL, MAX_GPD_NUM * sizeof(gpd_t), &host->dma.gpd_addr, GFP_KERNEL);
4594 + host->dma.bd = dma_alloc_coherent(NULL, MAX_BD_NUM * sizeof(bd_t), &host->dma.bd_addr, GFP_KERNEL);
4595 + BUG_ON((!host->dma.gpd) || (!host->dma.bd));
4596 + msdc_init_gpd_bd(host, &host->dma);
4597 +
4598 +#if 0
4599 + tasklet_init(&host->card_tasklet, msdc_tasklet_card, (ulong)host);
4600 +#else
4601 + INIT_DELAYED_WORK(&host->card_delaywork, msdc_tasklet_card);
4602 +#endif
4603 + spin_lock_init(&host->lock);
4604 + msdc_init_hw(host);
4605 +
4606 + if (ralink_soc == MT762X_SOC_MT7621AT)
4607 + ret = request_irq((unsigned int)irq, msdc_irq, 0, dev_name(&pdev->dev), host);
4608 + else
4609 + ret = request_irq((unsigned int)irq, msdc_irq, IRQF_TRIGGER_LOW, dev_name(&pdev->dev), host);
4610 +
4611 + if (ret) goto release;
4612 + // mt65xx_irq_unmask(irq); /* --- by chhung */
4613 +
4614 + if (hw->flags & MSDC_CD_PIN_EN) { /* not set for sdio */
4615 + if (hw->request_cd_eirq) { /* not set for MT6575 */
4616 + hw->request_cd_eirq(msdc_eirq_cd, (void*)host); /* msdc_eirq_cd will not be used! */
4617 + }
4618 + }
4619 +
4620 + if (hw->request_sdio_eirq) /* set to combo_sdio_request_eirq() for WIFI */
4621 + hw->request_sdio_eirq(msdc_eirq_sdio, (void*)host); /* msdc_eirq_sdio() will be called when EIRQ */
4622 +
4623 + if (hw->register_pm) {/* yes for sdio */
4624 +#ifdef CONFIG_PM
4625 + hw->register_pm(msdc_pm, (void*)host); /* combo_sdio_register_pm() */
4626 +#endif
4627 + if(hw->flags & MSDC_SYS_SUSPEND) { /* will not set for WIFI */
4628 + ERR_MSG("MSDC_SYS_SUSPEND and register_pm both set");
4629 + }
4630 + //mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY; /* pm not controlled by system but by client. */ /* --- by chhung */
4631 + }
4632 +
4633 + platform_set_drvdata(pdev, mmc);
4634 +
4635 + ret = mmc_add_host(mmc);
4636 + if (ret) goto free_irq;
4637 +
4638 + /* Config card detection pin and enable interrupts */
4639 + if (hw->flags & MSDC_CD_PIN_EN) { /* set for card */
4640 + msdc_enable_cd_irq(host, 1);
4641 + } else {
4642 + msdc_enable_cd_irq(host, 0);
4643 + }
4644 +
4645 + return 0;
4646 +
4647 +free_irq:
4648 + free_irq(irq, host);
4649 +release:
4650 + platform_set_drvdata(pdev, NULL);
4651 + msdc_deinit_hw(host);
4652 +
4653 +#if 0
4654 + tasklet_kill(&host->card_tasklet);
4655 +#else
4656 + cancel_delayed_work_sync(&host->card_delaywork);
4657 +#endif
4658 +
4659 + if (mem)
4660 + release_mem_region(mem->start, mem->end - mem->start + 1);
4661 +
4662 + mmc_free_host(mmc);
4663 +
4664 + return ret;
4665 +}
4666 +
4667 +/* 4 device share one driver, using "drvdata" to show difference */
4668 +static int msdc_drv_remove(struct platform_device *pdev)
4669 +{
4670 + struct mmc_host *mmc;
4671 + struct msdc_host *host;
4672 + struct resource *mem;
4673 +
4674 + mmc = platform_get_drvdata(pdev);
4675 + BUG_ON(!mmc);
4676 +
4677 + host = mmc_priv(mmc);
4678 + BUG_ON(!host);
4679 +
4680 + ERR_MSG("removed !!!");
4681 +
4682 + platform_set_drvdata(pdev, NULL);
4683 + mmc_remove_host(host->mmc);
4684 + msdc_deinit_hw(host);
4685 +
4686 +#if 0
4687 + tasklet_kill(&host->card_tasklet);
4688 +#else
4689 + cancel_delayed_work_sync(&host->card_delaywork);
4690 +#endif
4691 + free_irq(host->irq, host);
4692 +
4693 + dma_free_coherent(NULL, MAX_GPD_NUM * sizeof(gpd_t), host->dma.gpd, host->dma.gpd_addr);
4694 + dma_free_coherent(NULL, MAX_BD_NUM * sizeof(bd_t), host->dma.bd, host->dma.bd_addr);
4695 +
4696 + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
4697 +
4698 + if (mem)
4699 + release_mem_region(mem->start, mem->end - mem->start + 1);
4700 +
4701 + mmc_free_host(host->mmc);
4702 +
4703 + return 0;
4704 +}
4705 +
4706 +/* Fix me: Power Flow */
4707 +#ifdef CONFIG_PM
4708 +static int msdc_drv_suspend(struct platform_device *pdev, pm_message_t state)
4709 +{
4710 + int ret = 0;
4711 + struct mmc_host *mmc = platform_get_drvdata(pdev);
4712 + struct msdc_host *host = mmc_priv(mmc);
4713 +
4714 + if (mmc && state.event == PM_EVENT_SUSPEND && (host->hw->flags & MSDC_SYS_SUSPEND)) { /* will set for card */
4715 + msdc_pm(state, (void*)host);
4716 + }
4717 +
4718 + return ret;
4719 +}
4720 +
4721 +static int msdc_drv_resume(struct platform_device *pdev)
4722 +{
4723 + int ret = 0;
4724 + struct mmc_host *mmc = platform_get_drvdata(pdev);
4725 + struct msdc_host *host = mmc_priv(mmc);
4726 + struct pm_message state;
4727 +
4728 + state.event = PM_EVENT_RESUME;
4729 + if (mmc && (host->hw->flags & MSDC_SYS_SUSPEND)) {/* will set for card */
4730 + msdc_pm(state, (void*)host);
4731 + }
4732 +
4733 + /* This mean WIFI not controller by PM */
4734 +
4735 + return ret;
4736 +}
4737 +#endif
4738 +
4739 +static const struct of_device_id mt7620_sdhci_match[] = {
4740 + { .compatible = "ralink,mt7620-sdhci" },
4741 + {},
4742 +};
4743 +MODULE_DEVICE_TABLE(of, mt7620_sdhci_match);
4744 +
4745 +static struct platform_driver mt_msdc_driver = {
4746 + .probe = msdc_drv_probe,
4747 + .remove = msdc_drv_remove,
4748 +#ifdef CONFIG_PM
4749 + .suspend = msdc_drv_suspend,
4750 + .resume = msdc_drv_resume,
4751 +#endif
4752 + .driver = {
4753 + .name = DRV_NAME,
4754 + .of_match_table = mt7620_sdhci_match,
4755 + },
4756 +};
4757 +
4758 +/*--------------------------------------------------------------------------*/
4759 +/* module init/exit */
4760 +/*--------------------------------------------------------------------------*/
4761 +static int __init mt_msdc_init(void)
4762 +{
4763 + int ret;
4764 +/* +++ by chhung */
4765 + u32 reg;
4766 +
4767 +#if defined (CONFIG_MTD_ANY_RALINK)
4768 + extern int ra_check_flash_type(void);
4769 + if(ra_check_flash_type() == 2) { /* NAND */
4770 + printk("%s: !!!!! SDXC Module Initialize Fail !!!!!", __func__);
4771 + return 0;
4772 + }
4773 +#endif
4774 + printk("MTK MSDC device init.\n");
4775 + mtk_sd_device.dev.platform_data = &msdc0_hw;
4776 +if (ralink_soc == MT762X_SOC_MT7620A || ralink_soc == MT762X_SOC_MT7621AT) {
4777 +//#if defined (CONFIG_RALINK_MT7620) || defined (CONFIG_RALINK_MT7621)
4778 + reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60)) & ~(0x3<<18);
4779 +//#if defined (CONFIG_RALINK_MT7620)
4780 + if (ralink_soc == MT762X_SOC_MT7620A)
4781 + reg |= 0x1<<18;
4782 +//#endif
4783 +} else {
4784 +//#elif defined (CONFIG_RALINK_MT7628)
4785 + /* TODO: maybe omitted when RAether already toggle AGPIO_CFG */
4786 + reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x3c));
4787 + reg |= 0x1e << 16;
4788 + sdr_write32((volatile u32*)(RALINK_SYSCTL_BASE + 0x3c), reg);
4789 +
4790 + reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60)) & ~(0x3<<10);
4791 +#if defined (CONFIG_MTK_MMC_EMMC_8BIT)
4792 + reg |= 0x3<<26 | 0x3<<28 | 0x3<<30;
4793 + msdc0_hw.data_pins = 8,
4794 +#endif
4795 +//#endif
4796 +}
4797 + sdr_write32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60), reg);
4798 + //platform_device_register(&mtk_sd_device);
4799 +/* end of +++ */
4800 +
4801 + ret = platform_driver_register(&mt_msdc_driver);
4802 + if (ret) {
4803 + printk(KERN_ERR DRV_NAME ": Can't register driver");
4804 + return ret;
4805 + }
4806 + printk(KERN_INFO DRV_NAME ": MediaTek MT6575 MSDC Driver\n");
4807 +
4808 +#if defined (MT6575_SD_DEBUG)
4809 + msdc_debug_proc_init();
4810 +#endif
4811 + return 0;
4812 +}
4813 +
4814 +static void __exit mt_msdc_exit(void)
4815 +{
4816 +// platform_device_unregister(&mtk_sd_device);
4817 + platform_driver_unregister(&mt_msdc_driver);
4818 +}
4819 +
4820 +module_init(mt_msdc_init);
4821 +module_exit(mt_msdc_exit);
4822 +MODULE_LICENSE("GPL");
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