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         gpio_request_one(RB2011_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
 216
 217         ath79_nfc_set_scan_fixup(rb2011_nand_scan_fixup);
 218         ath79_nfc_set_parts(rb2011_nand_partitions,
 219                             ARRAY_SIZE(rb2011_nand_partitions));
 220         ath79_nfc_set_select_chip(rb2011_nand_select_chip);
 221         ath79_nfc_set_swap_dma(true);
 222         ath79_register_nfc();
 223 }
 224
 225 static void __init rb2011_setup(void)
 226 {
 227         rb2011_init_partitions();
 228
 229         ath79_register_m25p80(&rb2011_spi_flash_data);
 230         rb2011_nand_init();
 231
 232         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
 233                                    AR934X_ETH_CFG_SW_ONLY_MODE);
 234
 235         ath79_register_mdio(1, 0x0);
 236         ath79_register_mdio(0, 0x0);
 237
 238         mdiobus_register_board_info(rb2011_mdio0_info,
 239                                     ARRAY_SIZE(rb2011_mdio0_info));
 240
 241         /* GMAC0 is connected to an ar8327 switch */
 242         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 243         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 244         ath79_eth0_data.phy_mask = BIT(0);
 245         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 246         ath79_eth0_pll_data.pll_1000 = 0x06000000;
 247
 248         ath79_register_eth(0);
 249
 250         /* GMAC1 is connected to the internal switch */
 251         ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 5);
 252         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 253         ath79_eth1_data.speed = SPEED_1000;
 254         ath79_eth1_data.duplex = DUPLEX_FULL;
 255
 256         ath79_register_eth(1);
 257 }
 258
 259 MIPS_MACHINE(ATH79_MACH_RB_2011L, "2011L", "MikroTik RouterBOARD 2011L",
 260              rb2011_setup);
 261
 262 static void __init rb2011us_setup(void)
 263 {
 264         rb2011_setup();
 265 }
 266
 267 MIPS_MACHINE(ATH79_MACH_RB_2011US, "2011US", "MikroTik RouterBOARD 2011UAS",
 268              rb2011us_setup);
 269
 270 static void __init rb2011g_setup(void)
 271 {
 272         rb2011_setup();
 273         rb2011_wlan_init();
 274 }
 275
 276 MIPS_MACHINE(ATH79_MACH_RB_2011G, "2011G", "MikroTik RouterBOARD 2011UAS-2HnD",
 277              rb2011g_setup);