[ar71xx] fix GPIO function select bit definitions (based on a patch by Jonas <jmajau...
[openwrt/svn-archive/archive.git] / target / linux / ar71xx / files / arch / mips / ar71xx / platform.c
1 /*
2 * Atheros AR71xx SoC platform devices
3 *
4 * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
6 *
7 * Parts of this file are based on Atheros' 2.6.15 BSP
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License version 2 as published
11 * by the Free Software Foundation.
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
17 #include <linux/dma-mapping.h>
18 #include <linux/platform_device.h>
19 #include <linux/serial_8250.h>
20
21 #include <asm/mach-ar71xx/ar71xx.h>
22 #include <asm/mach-ar71xx/platform.h>
23
24 static u8 ar71xx_mac_base[ETH_ALEN] __initdata;
25
26 /*
27 * OHCI (USB full speed host controller)
28 */
29 static struct resource ar71xx_ohci_resources[] = {
30 [0] = {
31 .start = AR71XX_OHCI_BASE,
32 .end = AR71XX_OHCI_BASE + AR71XX_OHCI_SIZE - 1,
33 .flags = IORESOURCE_MEM,
34 },
35 [1] = {
36 .start = AR71XX_MISC_IRQ_OHCI,
37 .end = AR71XX_MISC_IRQ_OHCI,
38 .flags = IORESOURCE_IRQ,
39 },
40 };
41
42 static u64 ar71xx_ohci_dmamask = DMA_BIT_MASK(32);
43 static struct platform_device ar71xx_ohci_device = {
44 .name = "ar71xx-ohci",
45 .id = -1,
46 .resource = ar71xx_ohci_resources,
47 .num_resources = ARRAY_SIZE(ar71xx_ohci_resources),
48 .dev = {
49 .dma_mask = &ar71xx_ohci_dmamask,
50 .coherent_dma_mask = DMA_BIT_MASK(32),
51 },
52 };
53
54 /*
55 * EHCI (USB full speed host controller)
56 */
57 static struct resource ar71xx_ehci_resources[] = {
58 [0] = {
59 .start = AR71XX_EHCI_BASE,
60 .end = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1,
61 .flags = IORESOURCE_MEM,
62 },
63 [1] = {
64 .start = AR71XX_CPU_IRQ_USB,
65 .end = AR71XX_CPU_IRQ_USB,
66 .flags = IORESOURCE_IRQ,
67 },
68 };
69
70
71 static u64 ar71xx_ehci_dmamask = DMA_BIT_MASK(32);
72 static struct ar71xx_ehci_platform_data ar71xx_ehci_data;
73
74 static struct platform_device ar71xx_ehci_device = {
75 .name = "ar71xx-ehci",
76 .id = -1,
77 .resource = ar71xx_ehci_resources,
78 .num_resources = ARRAY_SIZE(ar71xx_ehci_resources),
79 .dev = {
80 .dma_mask = &ar71xx_ehci_dmamask,
81 .coherent_dma_mask = DMA_BIT_MASK(32),
82 .platform_data = &ar71xx_ehci_data,
83 },
84 };
85
86 #define AR71XX_USB_RESET_MASK \
87 (RESET_MODULE_USB_HOST | RESET_MODULE_USB_PHY \
88 | RESET_MODULE_USB_OHCI_DLL)
89
90 static void ar71xx_usb_setup(void)
91 {
92 ar71xx_device_stop(AR71XX_USB_RESET_MASK);
93 mdelay(1000);
94 ar71xx_device_start(AR71XX_USB_RESET_MASK);
95
96 /* Turning on the Buff and Desc swap bits */
97 ar71xx_usb_ctrl_wr(USB_CTRL_REG_CONFIG, 0xf0000);
98
99 /* WAR for HW bug. Here it adjusts the duration between two SOFS */
100 ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x20c00);
101
102 mdelay(900);
103 }
104
105 static void ar91xx_usb_setup(void)
106 {
107 ar71xx_device_stop(RESET_MODULE_USBSUS_OVERRIDE);
108 mdelay(10);
109
110 ar71xx_device_start(RESET_MODULE_USB_HOST);
111 mdelay(10);
112
113 ar71xx_device_start(RESET_MODULE_USB_PHY);
114 mdelay(10);
115 }
116
117 void __init ar71xx_add_device_usb(void)
118 {
119 switch (ar71xx_soc) {
120 case AR71XX_SOC_AR7130:
121 case AR71XX_SOC_AR7141:
122 case AR71XX_SOC_AR7161:
123 ar71xx_usb_setup();
124 platform_device_register(&ar71xx_ohci_device);
125 platform_device_register(&ar71xx_ehci_device);
126 break;
127
128 case AR71XX_SOC_AR9130:
129 case AR71XX_SOC_AR9132:
130 ar91xx_usb_setup();
131 ar71xx_ehci_data.is_ar91xx = 1;
132 platform_device_register(&ar71xx_ehci_device);
133 break;
134
135 default:
136 BUG();
137 }
138 }
139
140 #ifndef CONFIG_AR71XX_EARLY_SERIAL
141 static struct resource ar71xx_uart_resources[] = {
142 {
143 .start = AR71XX_UART_BASE,
144 .end = AR71XX_UART_BASE + AR71XX_UART_SIZE - 1,
145 .flags = IORESOURCE_MEM,
146 },
147 };
148
149 #define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
150 static struct plat_serial8250_port ar71xx_uart_data[] = {
151 {
152 .mapbase = AR71XX_UART_BASE,
153 .irq = AR71XX_MISC_IRQ_UART,
154 .flags = AR71XX_UART_FLAGS,
155 .iotype = UPIO_MEM32,
156 .regshift = 2,
157 }, {
158 /* terminating entry */
159 }
160 };
161
162 static struct platform_device ar71xx_uart_device = {
163 .name = "serial8250",
164 .id = PLAT8250_DEV_PLATFORM,
165 .resource = ar71xx_uart_resources,
166 .num_resources = ARRAY_SIZE(ar71xx_uart_resources),
167 .dev = {
168 .platform_data = ar71xx_uart_data
169 },
170 };
171
172 void __init ar71xx_add_device_uart(void)
173 {
174 ar71xx_uart_data[0].uartclk = ar71xx_ahb_freq;
175 platform_device_register(&ar71xx_uart_device);
176 }
177 #endif /* CONFIG_AR71XX_EARLY_SERIAL */
178
179 static struct resource ar71xx_mdio_resources[] = {
180 {
181 .name = "mdio_base",
182 .flags = IORESOURCE_MEM,
183 .start = AR71XX_GE0_BASE + 0x20,
184 .end = AR71XX_GE0_BASE + 0x38 - 1,
185 }
186 };
187
188 static struct ag71xx_mdio_platform_data ar71xx_mdio_data = {
189 .phy_mask = 0xffffffff,
190 };
191
192 static struct platform_device ar71xx_mdio_device = {
193 .name = "ag71xx-mdio",
194 .id = -1,
195 .resource = ar71xx_mdio_resources,
196 .num_resources = ARRAY_SIZE(ar71xx_mdio_resources),
197 .dev = {
198 .platform_data = &ar71xx_mdio_data,
199 },
200 };
201
202 void __init ar71xx_add_device_mdio(u32 phy_mask)
203 {
204 ar71xx_mdio_data.phy_mask = phy_mask;
205 platform_device_register(&ar71xx_mdio_device);
206 }
207
208 static void ar71xx_set_pll(u32 cfg_reg, u32 pll_reg, u32 pll_val, u32 shift)
209 {
210 void __iomem *base;
211 u32 t;
212
213 base = ioremap_nocache(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
214
215 t = __raw_readl(base + cfg_reg);
216 t &= ~(3 << shift);
217 t |= (2 << shift);
218 __raw_writel(t, base + cfg_reg);
219 udelay(100);
220
221 __raw_writel(pll_val, base + pll_reg);
222
223 t |= (3 << shift);
224 __raw_writel(t, base + cfg_reg);
225 udelay(100);
226
227 t &= ~(3 << shift);
228 __raw_writel(t, base + cfg_reg);
229 udelay(100);
230
231 printk(KERN_DEBUG "ar71xx: pll_reg %#x: %#x\n",
232 (unsigned int)(base + pll_reg), __raw_readl(base + pll_reg));
233
234 iounmap(base);
235 }
236
237 static void ar71xx_set_pll_ge0(u32 val)
238 {
239 ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH0_INT_CLOCK,
240 val, AR71XX_ETH0_PLL_SHIFT);
241 }
242
243 static void ar71xx_set_pll_ge1(u32 val)
244 {
245 ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH1_INT_CLOCK,
246 val, AR71XX_ETH1_PLL_SHIFT);
247 }
248
249 static void ar91xx_set_pll_ge0(u32 val)
250 {
251 ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH0_INT_CLOCK,
252 val, AR91XX_ETH0_PLL_SHIFT);
253 }
254
255 static void ar91xx_set_pll_ge1(u32 val)
256 {
257 ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH1_INT_CLOCK,
258 val, AR91XX_ETH1_PLL_SHIFT);
259 }
260
261 static void ar71xx_ddr_flush_ge0(void)
262 {
263 ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_GE0);
264 }
265
266 static void ar71xx_ddr_flush_ge1(void)
267 {
268 ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_GE1);
269 }
270
271 static void ar91xx_ddr_flush_ge0(void)
272 {
273 ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_GE0);
274 }
275
276 static void ar91xx_ddr_flush_ge1(void)
277 {
278 ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_GE1);
279 }
280
281 static struct resource ar71xx_eth0_resources[] = {
282 {
283 .name = "mac_base",
284 .flags = IORESOURCE_MEM,
285 .start = AR71XX_GE0_BASE,
286 .end = AR71XX_GE0_BASE + 0x20 - 1,
287 }, {
288 .name = "mac_base2",
289 .flags = IORESOURCE_MEM,
290 .start = AR71XX_GE0_BASE + 0x38,
291 .end = AR71XX_GE0_BASE + 0x200 - 1,
292 }, {
293 .name = "mii_ctrl",
294 .flags = IORESOURCE_MEM,
295 .start = AR71XX_MII_BASE + MII_REG_MII0_CTRL,
296 .end = AR71XX_MII_BASE + MII_REG_MII0_CTRL + 3,
297 }, {
298 .name = "mac_irq",
299 .flags = IORESOURCE_IRQ,
300 .start = AR71XX_CPU_IRQ_GE0,
301 .end = AR71XX_CPU_IRQ_GE0,
302 },
303 };
304
305 struct ag71xx_platform_data ar71xx_eth0_data = {
306 .reset_bit = RESET_MODULE_GE0_MAC,
307 };
308
309 static struct platform_device ar71xx_eth0_device = {
310 .name = "ag71xx",
311 .id = 0,
312 .resource = ar71xx_eth0_resources,
313 .num_resources = ARRAY_SIZE(ar71xx_eth0_resources),
314 .dev = {
315 .platform_data = &ar71xx_eth0_data,
316 },
317 };
318
319 static struct resource ar71xx_eth1_resources[] = {
320 {
321 .name = "mac_base",
322 .flags = IORESOURCE_MEM,
323 .start = AR71XX_GE1_BASE,
324 .end = AR71XX_GE1_BASE + 0x20 - 1,
325 }, {
326 .name = "mac_base2",
327 .flags = IORESOURCE_MEM,
328 .start = AR71XX_GE1_BASE + 0x38,
329 .end = AR71XX_GE1_BASE + 0x200 - 1,
330 }, {
331 .name = "mii_ctrl",
332 .flags = IORESOURCE_MEM,
333 .start = AR71XX_MII_BASE + MII_REG_MII1_CTRL,
334 .end = AR71XX_MII_BASE + MII_REG_MII1_CTRL + 3,
335 }, {
336 .name = "mac_irq",
337 .flags = IORESOURCE_IRQ,
338 .start = AR71XX_CPU_IRQ_GE1,
339 .end = AR71XX_CPU_IRQ_GE1,
340 },
341 };
342
343 struct ag71xx_platform_data ar71xx_eth1_data = {
344 .reset_bit = RESET_MODULE_GE1_MAC,
345 };
346
347 static struct platform_device ar71xx_eth1_device = {
348 .name = "ag71xx",
349 .id = 1,
350 .resource = ar71xx_eth1_resources,
351 .num_resources = ARRAY_SIZE(ar71xx_eth1_resources),
352 .dev = {
353 .platform_data = &ar71xx_eth1_data,
354 },
355 };
356
357 static int ar71xx_eth_instance __initdata;
358 void __init ar71xx_add_device_eth(unsigned int id)
359 {
360 struct platform_device *pdev;
361 struct ag71xx_platform_data *pdata;
362
363 switch (id) {
364 case 0:
365 switch (ar71xx_eth0_data.phy_if_mode) {
366 case PHY_INTERFACE_MODE_MII:
367 ar71xx_eth0_data.mii_if = MII0_CTRL_IF_MII;
368 break;
369 case PHY_INTERFACE_MODE_GMII:
370 ar71xx_eth0_data.mii_if = MII0_CTRL_IF_GMII;
371 break;
372 case PHY_INTERFACE_MODE_RGMII:
373 ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RGMII;
374 break;
375 case PHY_INTERFACE_MODE_RMII:
376 ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RMII;
377 break;
378 default:
379 printk(KERN_ERR "ar71xx: invalid PHY interface mode "
380 "for eth0\n");
381 return;
382 }
383 pdev = &ar71xx_eth0_device;
384 break;
385 case 1:
386 switch (ar71xx_eth1_data.phy_if_mode) {
387 case PHY_INTERFACE_MODE_RMII:
388 ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RMII;
389 break;
390 case PHY_INTERFACE_MODE_RGMII:
391 ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RGMII;
392 break;
393 default:
394 printk(KERN_ERR "ar71xx: invalid PHY interface mode "
395 "for eth1\n");
396 return;
397 }
398 pdev = &ar71xx_eth1_device;
399 break;
400 default:
401 printk(KERN_ERR "ar71xx: invalid ethernet id %d\n", id);
402 return;
403 }
404
405 pdata = pdev->dev.platform_data;
406
407 switch (ar71xx_soc) {
408 case AR71XX_SOC_AR7130:
409 pdata->ddr_flush = id ? ar71xx_ddr_flush_ge1
410 : ar71xx_ddr_flush_ge0;
411 pdata->set_pll = id ? ar71xx_set_pll_ge1
412 : ar71xx_set_pll_ge0;
413 break;
414
415 case AR71XX_SOC_AR7141:
416 case AR71XX_SOC_AR7161:
417 pdata->ddr_flush = id ? ar71xx_ddr_flush_ge1
418 : ar71xx_ddr_flush_ge0;
419 pdata->set_pll = id ? ar71xx_set_pll_ge1
420 : ar71xx_set_pll_ge0;
421 pdata->has_gbit = 1;
422 break;
423
424 case AR71XX_SOC_AR9130:
425 pdata->ddr_flush = id ? ar91xx_ddr_flush_ge1
426 : ar91xx_ddr_flush_ge0;
427 pdata->set_pll = id ? ar91xx_set_pll_ge1
428 : ar91xx_set_pll_ge0;
429 pdata->is_ar91xx = 1;
430 break;
431
432 case AR71XX_SOC_AR9132:
433 pdata->ddr_flush = id ? ar91xx_ddr_flush_ge1
434 : ar91xx_ddr_flush_ge0;
435 pdata->set_pll = id ? ar91xx_set_pll_ge1
436 : ar91xx_set_pll_ge0;
437 pdata->is_ar91xx = 1;
438 pdata->has_gbit = 1;
439 break;
440
441 default:
442 BUG();
443 }
444
445 switch (pdata->phy_if_mode) {
446 case PHY_INTERFACE_MODE_GMII:
447 case PHY_INTERFACE_MODE_RGMII:
448 if (!pdata->has_gbit) {
449 printk(KERN_ERR "ar71xx: no gbit available on eth%d\n",
450 id);
451 return;
452 }
453 /* fallthrough */
454 default:
455 break;
456 }
457
458 memcpy(pdata->mac_addr, ar71xx_mac_base, ETH_ALEN);
459 pdata->mac_addr[5] += ar71xx_eth_instance;
460
461 platform_device_register(pdev);
462 ar71xx_eth_instance++;
463 }
464
465 static struct resource ar71xx_spi_resources[] = {
466 [0] = {
467 .start = AR71XX_SPI_BASE,
468 .end = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
469 .flags = IORESOURCE_MEM,
470 },
471 };
472
473 static struct platform_device ar71xx_spi_device = {
474 .name = "ar71xx-spi",
475 .id = -1,
476 .resource = ar71xx_spi_resources,
477 .num_resources = ARRAY_SIZE(ar71xx_spi_resources),
478 };
479
480 void __init ar71xx_add_device_spi(struct ar71xx_spi_platform_data *pdata,
481 struct spi_board_info const *info,
482 unsigned n)
483 {
484 spi_register_board_info(info, n);
485 ar71xx_spi_device.dev.platform_data = pdata;
486 platform_device_register(&ar71xx_spi_device);
487 }
488
489 void __init ar71xx_add_device_leds_gpio(int id, unsigned num_leds,
490 struct gpio_led *leds)
491 {
492 struct platform_device *pdev;
493 struct gpio_led_platform_data pdata;
494 struct gpio_led *p;
495 int err;
496
497 p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
498 if (!p)
499 return;
500
501 memcpy(p, leds, num_leds * sizeof(*p));
502
503 pdev = platform_device_alloc("leds-gpio", id);
504 if (!pdev)
505 goto err_free_leds;
506
507 memset(&pdata, 0, sizeof(pdata));
508 pdata.num_leds = num_leds;
509 pdata.leds = leds;
510
511 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
512 if (err)
513 goto err_put_pdev;
514
515 err = platform_device_add(pdev);
516 if (err)
517 goto err_put_pdev;
518
519 return;
520
521 err_put_pdev:
522 platform_device_put(pdev);
523
524 err_free_leds:
525 kfree(p);
526 }
527
528 void __init ar71xx_add_device_gpio_buttons(int id,
529 unsigned poll_interval,
530 unsigned nbuttons,
531 struct gpio_button *buttons)
532 {
533 struct platform_device *pdev;
534 struct gpio_buttons_platform_data pdata;
535 struct gpio_button *p;
536 int err;
537
538 p = kmalloc(nbuttons * sizeof(*p), GFP_KERNEL);
539 if (!p)
540 return;
541
542 memcpy(p, buttons, nbuttons * sizeof(*p));
543
544 pdev = platform_device_alloc("gpio-buttons", id);
545 if (!pdev)
546 goto err_free_buttons;
547
548 memset(&pdata, 0, sizeof(pdata));
549 pdata.poll_interval = poll_interval;
550 pdata.nbuttons = nbuttons;
551 pdata.buttons = p;
552
553 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
554 if (err)
555 goto err_put_pdev;
556
557
558 err = platform_device_add(pdev);
559 if (err)
560 goto err_put_pdev;
561
562 return;
563
564 err_put_pdev:
565 platform_device_put(pdev);
566
567 err_free_buttons:
568 kfree(p);
569 }
570
571 void __init ar71xx_add_device_wdt(void)
572 {
573 platform_device_register_simple("ar71xx-wdt", -1, NULL, 0);
574 }
575
576 void __init ar71xx_set_mac_base(unsigned char *mac)
577 {
578 memcpy(ar71xx_mac_base, mac, ETH_ALEN);
579 }
580
581 void __init ar71xx_parse_mac_addr(char *mac_str)
582 {
583 u8 tmp[ETH_ALEN];
584 int t;
585
586 t = sscanf(mac_str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
587 &tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
588
589 if (t == ETH_ALEN)
590 ar71xx_set_mac_base(tmp);
591 else
592 printk(KERN_DEBUG "ar71xx: failed to parse mac address "
593 "\"%s\"\n", mac_str);
594 }