46b8a053d3fb869e9cec4a74900217a2ae4d46d1
[openwrt/openwrt.git] / target / linux / ar71xx / files / arch / mips / ath79 / mach-rb2011.c
1 /*
2 * MikroTik RouterBOARD 2011 support
3 *
4 * Copyright (C) 2012 Stijn Tintel <stijn@linux-ipv6.be>
5 * Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published
9 * by the Free Software Foundation.
10 */
11
12 #define pr_fmt(fmt) "rb2011: " fmt
13
14 #include <linux/phy.h>
15 #include <linux/delay.h>
16 #include <linux/platform_device.h>
17 #include <linux/ath9k_platform.h>
18 #include <linux/ar8216_platform.h>
19 #include <linux/mtd/mtd.h>
20 #include <linux/mtd/nand.h>
21 #include <linux/mtd/partitions.h>
22 #include <linux/spi/spi.h>
23 #include <linux/spi/flash.h>
24 #include <linux/rle.h>
25 #include <linux/routerboot.h>
26 #include <linux/gpio.h>
27
28 #include <asm/mach-ath79/ath79.h>
29 #include <asm/mach-ath79/ar71xx_regs.h>
30
31 #include "common.h"
32 #include "dev-eth.h"
33 #include "dev-m25p80.h"
34 #include "dev-nfc.h"
35 #include "dev-wmac.h"
36 #include "machtypes.h"
37 #include "routerboot.h"
38
39 #define RB2011_GPIO_NAND_NCE 14
40
41 #define RB_ROUTERBOOT_OFFSET 0x0000
42 #define RB_ROUTERBOOT_MIN_SIZE 0xb000
43 #define RB_HARD_CFG_SIZE 0x1000
44 #define RB_BIOS_OFFSET 0xd000
45 #define RB_BIOS_SIZE 0x1000
46 #define RB_SOFT_CFG_OFFSET 0xf000
47 #define RB_SOFT_CFG_SIZE 0x1000
48
49 #define RB_ART_SIZE 0x10000
50
51 static struct mtd_partition rb2011_spi_partitions[] = {
52 {
53 .name = "routerboot",
54 .offset = RB_ROUTERBOOT_OFFSET,
55 .mask_flags = MTD_WRITEABLE,
56 }, {
57 .name = "hard_config",
58 .size = RB_HARD_CFG_SIZE,
59 .mask_flags = MTD_WRITEABLE,
60 }, {
61 .name = "bios",
62 .offset = RB_BIOS_OFFSET,
63 .size = RB_BIOS_SIZE,
64 .mask_flags = MTD_WRITEABLE,
65 }, {
66 .name = "soft_config",
67 .size = RB_SOFT_CFG_SIZE,
68 }
69 };
70
71
72 static void __init rb2011_init_partitions(void)
73 {
74 u8 *addr = (u8 *) KSEG1ADDR(0x1f000000);
75 u32 next = RB_ROUTERBOOT_MIN_SIZE;
76
77 if (routerboot_find_magic(addr, 0x10000, &next, true))
78 printk(KERN_ERR "Warning: could not find a valid RouterBOOT hard config\n");
79 rb2011_spi_partitions[0].size = next;
80 rb2011_spi_partitions[1].offset = next;
81
82 next = RB_BIOS_OFFSET + RB_BIOS_SIZE;
83 if (routerboot_find_magic(addr, 0x10000, &next, false))
84 printk(KERN_ERR "Warning: could not find a valid RouterBOOT soft config\n");
85
86 rb2011_spi_partitions[3].offset = next;
87 }
88
89
90 static struct mtd_partition rb2011_nand_partitions[] = {
91 {
92 .name = "booter",
93 .offset = 0,
94 .size = (256 * 1024),
95 .mask_flags = MTD_WRITEABLE,
96 },
97 {
98 .name = "kernel",
99 .offset = (256 * 1024),
100 .size = (4 * 1024 * 1024) - (256 * 1024),
101 },
102 {
103 .name = "rootfs",
104 .offset = MTDPART_OFS_NXTBLK,
105 .size = MTDPART_SIZ_FULL,
106 },
107 };
108
109 static struct flash_platform_data rb2011_spi_flash_data = {
110 .parts = rb2011_spi_partitions,
111 .nr_parts = ARRAY_SIZE(rb2011_spi_partitions),
112 };
113
114 static struct ar8327_pad_cfg rb2011_ar8327_pad0_cfg = {
115 .mode = AR8327_PAD_MAC_RGMII,
116 .txclk_delay_en = true,
117 .rxclk_delay_en = true,
118 .txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
119 .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
120 };
121
122 static struct ar8327_platform_data rb2011_ar8327_data = {
123 .pad0_cfg = &rb2011_ar8327_pad0_cfg,
124 .port0_cfg = {
125 .force_link = 1,
126 .speed = AR8327_PORT_SPEED_1000,
127 .duplex = 1,
128 .txpause = 1,
129 .rxpause = 1,
130 }
131 };
132
133 static struct mdio_board_info rb2011_mdio0_info[] = {
134 {
135 .bus_id = "ag71xx-mdio.0",
136 .phy_addr = 0,
137 .platform_data = &rb2011_ar8327_data,
138 },
139 };
140
141 static void __init rb2011_wlan_init(void)
142 {
143 u8 *hard_cfg = (u8 *) KSEG1ADDR(0x1f000000);
144 u16 tag_len;
145 u8 *tag;
146 char *art_buf;
147 u8 wlan_mac[ETH_ALEN];
148 int err;
149
150 hard_cfg += rb2011_spi_partitions[1].offset;
151 err = routerboot_find_tag(hard_cfg, RB_HARD_CFG_SIZE, RB_ID_WLAN_DATA,
152 &tag, &tag_len);
153 if (err) {
154 pr_err("no calibration data found\n");
155 return;
156 }
157
158 art_buf = kmalloc(RB_ART_SIZE, GFP_KERNEL);
159 if (art_buf == NULL) {
160 pr_err("no memory for calibration data\n");
161 return;
162 }
163
164 err = rle_decode((char *) tag, tag_len, art_buf, RB_ART_SIZE,
165 NULL, NULL);
166 if (err) {
167 pr_err("unable to decode calibration data\n");
168 goto free;
169 }
170
171 ath79_init_mac(wlan_mac, ath79_mac_base, 11);
172 ath79_register_wmac(art_buf + 0x1000, wlan_mac);
173
174 free:
175 kfree(art_buf);
176 }
177
178 static void rb2011_nand_select_chip(int chip_no)
179 {
180 switch (chip_no) {
181 case 0:
182 gpio_set_value(RB2011_GPIO_NAND_NCE, 0);
183 break;
184 default:
185 gpio_set_value(RB2011_GPIO_NAND_NCE, 1);
186 break;
187 }
188 ndelay(500);
189 }
190
191 static struct nand_ecclayout rb2011_nand_ecclayout = {
192 .eccbytes = 6,
193 .eccpos = { 8, 9, 10, 13, 14, 15 },
194 .oobavail = 9,
195 .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
196 };
197
198 static int rb2011_nand_scan_fixup(struct mtd_info *mtd)
199 {
200 struct nand_chip *chip = mtd->priv;
201
202 if (mtd->writesize == 512) {
203 /*
204 * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
205 * will not be able to find the kernel that we load.
206 */
207 chip->ecc.layout = &rb2011_nand_ecclayout;
208 }
209
210 return 0;
211 }
212
213 static void __init rb2011_nand_init(void)
214 {
215 ath79_nfc_set_scan_fixup(rb2011_nand_scan_fixup);
216 ath79_nfc_set_parts(rb2011_nand_partitions,
217 ARRAY_SIZE(rb2011_nand_partitions));
218 ath79_nfc_set_select_chip(rb2011_nand_select_chip);
219 ath79_nfc_set_swap_dma(true);
220 ath79_register_nfc();
221 }
222
223 static void __init rb2011_gpio_init(void)
224 {
225 gpio_request_one(RB2011_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
226 }
227
228 static void __init rb2011_setup(void)
229 {
230 rb2011_init_partitions();
231 rb2011_gpio_init();
232
233 ath79_register_m25p80(&rb2011_spi_flash_data);
234 rb2011_nand_init();
235
236 ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
237 AR934X_ETH_CFG_SW_ONLY_MODE);
238
239 ath79_register_mdio(1, 0x0);
240 ath79_register_mdio(0, 0x0);
241
242 mdiobus_register_board_info(rb2011_mdio0_info,
243 ARRAY_SIZE(rb2011_mdio0_info));
244
245 /* GMAC0 is connected to an ar8327 switch */
246 ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
247 ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
248 ath79_eth0_data.phy_mask = BIT(0);
249 ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
250 ath79_eth0_pll_data.pll_1000 = 0x06000000;
251
252 ath79_register_eth(0);
253
254 /* GMAC1 is connected to the internal switch */
255 ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 5);
256 ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
257 ath79_eth1_data.speed = SPEED_1000;
258 ath79_eth1_data.duplex = DUPLEX_FULL;
259
260 ath79_register_eth(1);
261 }
262
263 MIPS_MACHINE(ATH79_MACH_RB_2011L, "2011L", "MikroTik RouterBOARD 2011L",
264 rb2011_setup);
265
266 static void __init rb2011g_setup(void)
267 {
268 rb2011_setup();
269 rb2011_wlan_init();
270 }
271
272 MIPS_MACHINE(ATH79_MACH_RB_2011G, "2011G", "MikroTik RouterBOARD 2011UAS-2HnD",
273 rb2011g_setup);