| 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_SIZE 0xb000 |
| 43 | #define RB_HARD_CFG_OFFSET 0xb000 |
| 44 | #define RB_HARD_CFG_SIZE 0x1000 |
| 45 | #define RB_BIOS_OFFSET 0xd000 |
| 46 | #define RB_BIOS_SIZE 0x2000 |
| 47 | #define RB_SOFT_CFG_OFFSET 0xf000 |
| 48 | #define RB_SOFT_CFG_SIZE 0x1000 |
| 49 | |
| 50 | #define RB_ART_SIZE 0x10000 |
| 51 | |
| 52 | static struct mtd_partition rb2011_spi_partitions[] = { |
| 53 | { |
| 54 | .name = "routerboot", |
| 55 | .offset = RB_ROUTERBOOT_OFFSET, |
| 56 | .size = RB_ROUTERBOOT_SIZE, |
| 57 | .mask_flags = MTD_WRITEABLE, |
| 58 | }, { |
| 59 | .name = "hard_config", |
| 60 | .offset = RB_HARD_CFG_OFFSET, |
| 61 | .size = RB_HARD_CFG_SIZE, |
| 62 | .mask_flags = MTD_WRITEABLE, |
| 63 | }, { |
| 64 | .name = "bios", |
| 65 | .offset = RB_BIOS_OFFSET, |
| 66 | .size = RB_BIOS_SIZE, |
| 67 | .mask_flags = MTD_WRITEABLE, |
| 68 | }, { |
| 69 | .name = "soft_config", |
| 70 | .offset = RB_SOFT_CFG_OFFSET, |
| 71 | .size = RB_SOFT_CFG_SIZE, |
| 72 | } |
| 73 | }; |
| 74 | |
| 75 | static struct mtd_partition rb2011_nand_partitions[] = { |
| 76 | { |
| 77 | .name = "booter", |
| 78 | .offset = 0, |
| 79 | .size = (256 * 1024), |
| 80 | .mask_flags = MTD_WRITEABLE, |
| 81 | }, |
| 82 | { |
| 83 | .name = "kernel", |
| 84 | .offset = (256 * 1024), |
| 85 | .size = (4 * 1024 * 1024) - (256 * 1024), |
| 86 | }, |
| 87 | { |
| 88 | .name = "rootfs", |
| 89 | .offset = MTDPART_OFS_NXTBLK, |
| 90 | .size = MTDPART_SIZ_FULL, |
| 91 | }, |
| 92 | }; |
| 93 | |
| 94 | static struct flash_platform_data rb2011_spi_flash_data = { |
| 95 | .parts = rb2011_spi_partitions, |
| 96 | .nr_parts = ARRAY_SIZE(rb2011_spi_partitions), |
| 97 | }; |
| 98 | |
| 99 | static struct ar8327_pad_cfg rb2011_ar8327_pad0_cfg = { |
| 100 | .mode = AR8327_PAD_MAC_RGMII, |
| 101 | .txclk_delay_en = true, |
| 102 | .rxclk_delay_en = true, |
| 103 | .txclk_delay_sel = AR8327_CLK_DELAY_SEL1, |
| 104 | .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2, |
| 105 | }; |
| 106 | |
| 107 | static struct ar8327_platform_data rb2011_ar8327_data = { |
| 108 | .pad0_cfg = &rb2011_ar8327_pad0_cfg, |
| 109 | .port0_cfg = { |
| 110 | .force_link = 1, |
| 111 | .speed = AR8327_PORT_SPEED_1000, |
| 112 | .duplex = 1, |
| 113 | .txpause = 1, |
| 114 | .rxpause = 1, |
| 115 | } |
| 116 | }; |
| 117 | |
| 118 | static struct mdio_board_info rb2011_mdio0_info[] = { |
| 119 | { |
| 120 | .bus_id = "ag71xx-mdio.0", |
| 121 | .phy_addr = 0, |
| 122 | .platform_data = &rb2011_ar8327_data, |
| 123 | }, |
| 124 | }; |
| 125 | |
| 126 | static void __init rb2011_wlan_init(void) |
| 127 | { |
| 128 | u8 *hard_cfg = (u8 *) KSEG1ADDR(0x1f000000 + RB_HARD_CFG_OFFSET); |
| 129 | u16 tag_len; |
| 130 | u8 *tag; |
| 131 | char *art_buf; |
| 132 | u8 wlan_mac[ETH_ALEN]; |
| 133 | int err; |
| 134 | |
| 135 | err = routerboot_find_tag(hard_cfg, RB_HARD_CFG_SIZE, RB_ID_WLAN_DATA, |
| 136 | &tag, &tag_len); |
| 137 | if (err) { |
| 138 | pr_err("no calibration data found\n"); |
| 139 | return; |
| 140 | } |
| 141 | |
| 142 | art_buf = kmalloc(RB_ART_SIZE, GFP_KERNEL); |
| 143 | if (art_buf == NULL) { |
| 144 | pr_err("no memory for calibration data\n"); |
| 145 | return; |
| 146 | } |
| 147 | |
| 148 | err = rle_decode((char *) tag, tag_len, art_buf, RB_ART_SIZE, |
| 149 | NULL, NULL); |
| 150 | if (err) { |
| 151 | pr_err("unable to decode calibration data\n"); |
| 152 | goto free; |
| 153 | } |
| 154 | |
| 155 | ath79_init_mac(wlan_mac, ath79_mac_base, 11); |
| 156 | ath79_register_wmac(art_buf + 0x1000, wlan_mac); |
| 157 | |
| 158 | free: |
| 159 | kfree(art_buf); |
| 160 | } |
| 161 | |
| 162 | static void rb2011_nand_select_chip(int chip_no) |
| 163 | { |
| 164 | switch (chip_no) { |
| 165 | case 0: |
| 166 | gpio_set_value(RB2011_GPIO_NAND_NCE, 0); |
| 167 | break; |
| 168 | default: |
| 169 | gpio_set_value(RB2011_GPIO_NAND_NCE, 1); |
| 170 | break; |
| 171 | } |
| 172 | ndelay(500); |
| 173 | } |
| 174 | |
| 175 | static struct nand_ecclayout rb2011_nand_ecclayout = { |
| 176 | .eccbytes = 6, |
| 177 | .eccpos = { 8, 9, 10, 13, 14, 15 }, |
| 178 | .oobavail = 9, |
| 179 | .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } |
| 180 | }; |
| 181 | |
| 182 | static int rb2011_nand_scan_fixup(struct mtd_info *mtd) |
| 183 | { |
| 184 | struct nand_chip *chip = mtd->priv; |
| 185 | |
| 186 | if (mtd->writesize == 512) { |
| 187 | /* |
| 188 | * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot |
| 189 | * will not be able to find the kernel that we load. |
| 190 | */ |
| 191 | chip->ecc.layout = &rb2011_nand_ecclayout; |
| 192 | } |
| 193 | |
| 194 | return 0; |
| 195 | } |
| 196 | |
| 197 | static void __init rb2011_nand_init(void) |
| 198 | { |
| 199 | ath79_nfc_set_scan_fixup(rb2011_nand_scan_fixup); |
| 200 | ath79_nfc_set_parts(rb2011_nand_partitions, |
| 201 | ARRAY_SIZE(rb2011_nand_partitions)); |
| 202 | ath79_nfc_set_select_chip(rb2011_nand_select_chip); |
| 203 | ath79_nfc_set_swap_dma(true); |
| 204 | ath79_register_nfc(); |
| 205 | } |
| 206 | |
| 207 | static void __init rb2011_gpio_init(void) |
| 208 | { |
| 209 | gpio_request_one(RB2011_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE"); |
| 210 | } |
| 211 | |
| 212 | static void __init rb2011_setup(void) |
| 213 | { |
| 214 | rb2011_gpio_init(); |
| 215 | |
| 216 | ath79_register_m25p80(&rb2011_spi_flash_data); |
| 217 | rb2011_nand_init(); |
| 218 | |
| 219 | ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 | |
| 220 | AR934X_ETH_CFG_SW_ONLY_MODE); |
| 221 | |
| 222 | ath79_register_mdio(1, 0x0); |
| 223 | ath79_register_mdio(0, 0x0); |
| 224 | |
| 225 | mdiobus_register_board_info(rb2011_mdio0_info, |
| 226 | ARRAY_SIZE(rb2011_mdio0_info)); |
| 227 | |
| 228 | /* GMAC0 is connected to an ar8327 switch */ |
| 229 | ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0); |
| 230 | ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII; |
| 231 | ath79_eth0_data.phy_mask = BIT(0); |
| 232 | ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev; |
| 233 | ath79_eth0_pll_data.pll_1000 = 0x06000000; |
| 234 | |
| 235 | ath79_register_eth(0); |
| 236 | |
| 237 | /* GMAC1 is connected to the internal switch */ |
| 238 | ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 5); |
| 239 | ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII; |
| 240 | ath79_eth1_data.speed = SPEED_1000; |
| 241 | ath79_eth1_data.duplex = DUPLEX_FULL; |
| 242 | |
| 243 | ath79_register_eth(1); |
| 244 | } |
| 245 | |
| 246 | MIPS_MACHINE(ATH79_MACH_RB_2011L, "2011L", "MikroTik RouterBOARD 2011L", |
| 247 | rb2011_setup); |
| 248 | |
| 249 | static void __init rb2011g_setup(void) |
| 250 | { |
| 251 | rb2011_setup(); |
| 252 | rb2011_wlan_init(); |
| 253 | } |
| 254 | |
| 255 | MIPS_MACHINE(ATH79_MACH_RB_2011G, "2011G", "MikroTik RouterBOARD 2011UAS-2HnD", |
| 256 | rb2011g_setup); |
| 257 | |
