target/linux/ar71xx/files/arch/mips/ath79/mach-rb91x.c

   1 /*
   2  *  MikroTik RouterBOARD 91X support
   3  *
   4  *  Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License version 2 as published
   8  *  by the Free Software Foundation.
   9  */
  10
  11 #define pr_fmt(fmt) "rb91x: " fmt
  12
  13 #include <linux/version.h>
  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/mtd/mtd.h>
  19 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
  20 #include <linux/mtd/nand.h>
  21 #else
  22 #include <linux/mtd/rawnand.h>
  23 #endif
  24 #include <linux/mtd/partitions.h>
  25 #include <linux/spi/spi.h>
  26 #include <linux/spi/74x164.h>
  27 #include <linux/spi/flash.h>
  28 #include <linux/routerboot.h>
  29 #include <linux/gpio.h>
  30 #include <linux/platform_data/gpio-latch.h>
  31 #include <linux/platform_data/rb91x_nand.h>
  32 #include <linux/platform_data/phy-at803x.h>
  33
  34 #include <asm/prom.h>
  35 #include <asm/mach-ath79/ath79.h>
  36 #include <asm/mach-ath79/ath79_spi_platform.h>
  37 #include <asm/mach-ath79/ar71xx_regs.h>
  38
  39 #include "common.h"
  40 #include "dev-eth.h"
  41 #include "dev-leds-gpio.h"
  42 #include "dev-nfc.h"
  43 #include "dev-usb.h"
  44 #include "dev-spi.h"
  45 #include "dev-wmac.h"
  46 #include "machtypes.h"
  47 #include "pci.h"
  48 #include "routerboot.h"
  49
  50 #define RB_ROUTERBOOT_OFFSET    0x0000
  51 #define RB_ROUTERBOOT_MIN_SIZE  0xb000
  52 #define RB_HARD_CFG_SIZE        0x1000
  53 #define RB_BIOS_OFFSET          0xd000
  54 #define RB_BIOS_SIZE            0x1000
  55 #define RB_SOFT_CFG_OFFSET      0xf000
  56 #define RB_SOFT_CFG_SIZE        0x1000
  57
  58 #define RB91X_FLAG_USB          BIT(0)
  59 #define RB91X_FLAG_PCIE         BIT(1)
  60
  61 #define RB91X_LATCH_GPIO_BASE   32
  62 #define RB91X_LATCH_GPIO(_x)    (RB91X_LATCH_GPIO_BASE + (_x))
  63
  64 #define RB91X_SSR_GPIO_BASE     (RB91X_LATCH_GPIO_BASE + AR934X_GPIO_COUNT)
  65 #define RB91X_SSR_GPIO(_x)      (RB91X_SSR_GPIO_BASE + (_x))
  66
  67 #define RB91X_SSR_BIT_LED1              0
  68 #define RB91X_SSR_BIT_LED2              1
  69 #define RB91X_SSR_BIT_LED3              2
  70 #define RB91X_SSR_BIT_LED4              3
  71 #define RB91X_SSR_BIT_LED5              4
  72 #define RB91X_SSR_BIT_5                 5
  73 #define RB91X_SSR_BIT_USB_POWER         6
  74 #define RB91X_SSR_BIT_PCIE_POWER        7
  75
  76 #define RB91X_GPIO_SSR_STROBE   RB91X_LATCH_GPIO(0)
  77 #define RB91X_GPIO_LED_POWER    RB91X_LATCH_GPIO(1)
  78 #define RB91X_GPIO_LED_USER     RB91X_LATCH_GPIO(2)
  79 #define RB91X_GPIO_NAND_READ    RB91X_LATCH_GPIO(3)
  80 #define RB91X_GPIO_NAND_RDY     RB91X_LATCH_GPIO(4)
  81 #define RB91X_GPIO_NLE          RB91X_LATCH_GPIO(11)
  82 #define RB91X_GPIO_NAND_NRW     RB91X_LATCH_GPIO(12)
  83 #define RB91X_GPIO_NAND_NCE     RB91X_LATCH_GPIO(13)
  84 #define RB91X_GPIO_NAND_CLE     RB91X_LATCH_GPIO(14)
  85 #define RB91X_GPIO_NAND_ALE     RB91X_LATCH_GPIO(15)
  86
  87 #define RB91X_GPIO_LED_1        RB91X_SSR_GPIO(RB91X_SSR_BIT_LED1)
  88 #define RB91X_GPIO_LED_2        RB91X_SSR_GPIO(RB91X_SSR_BIT_LED2)
  89 #define RB91X_GPIO_LED_3        RB91X_SSR_GPIO(RB91X_SSR_BIT_LED3)
  90 #define RB91X_GPIO_LED_4        RB91X_SSR_GPIO(RB91X_SSR_BIT_LED4)
  91 #define RB91X_GPIO_LED_5        RB91X_SSR_GPIO(RB91X_SSR_BIT_LED5)
  92 #define RB91X_GPIO_USB_POWER    RB91X_SSR_GPIO(RB91X_SSR_BIT_USB_POWER)
  93 #define RB91X_GPIO_PCIE_POWER   RB91X_SSR_GPIO(RB91X_SSR_BIT_PCIE_POWER)
  94
  95 struct rb_board_info {
  96         const char *name;
  97         u32 flags;
  98 };
  99
 100 static struct mtd_partition rb711gr100_spi_partitions[] = {
 101         {
 102                 .name           = "routerboot",
 103                 .offset         = RB_ROUTERBOOT_OFFSET,
 104                 .mask_flags     = MTD_WRITEABLE,
 105         }, {
 106                 .name           = "hard_config",
 107                 .size           = RB_HARD_CFG_SIZE,
 108                 .mask_flags     = MTD_WRITEABLE,
 109         }, {
 110                 .name           = "bios",
 111                 .offset         = RB_BIOS_OFFSET,
 112                 .size           = RB_BIOS_SIZE,
 113                 .mask_flags     = MTD_WRITEABLE,
 114         }, {
 115                 .name           = "soft_config",
 116                 .size           = RB_SOFT_CFG_SIZE,
 117         }
 118 };
 119
 120 static struct flash_platform_data rb711gr100_spi_flash_data = {
 121         .parts          = rb711gr100_spi_partitions,
 122         .nr_parts       = ARRAY_SIZE(rb711gr100_spi_partitions),
 123 };
 124
 125 static int rb711gr100_gpio_latch_gpios[AR934X_GPIO_COUNT] __initdata = {
 126         0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
 127         12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22
 128 };
 129
 130 static struct gpio_latch_platform_data rb711gr100_gpio_latch_data __initdata = {
 131         .base = RB91X_LATCH_GPIO_BASE,
 132         .num_gpios = ARRAY_SIZE(rb711gr100_gpio_latch_gpios),
 133         .gpios = rb711gr100_gpio_latch_gpios,
 134         .le_gpio_index = 11,
 135         .le_active_low = true,
 136 };
 137
 138 static struct rb91x_nand_platform_data rb711gr100_nand_data __initdata = {
 139         .gpio_nce = RB91X_GPIO_NAND_NCE,
 140         .gpio_ale = RB91X_GPIO_NAND_ALE,
 141         .gpio_cle = RB91X_GPIO_NAND_CLE,
 142         .gpio_rdy = RB91X_GPIO_NAND_RDY,
 143         .gpio_read = RB91X_GPIO_NAND_READ,
 144         .gpio_nrw = RB91X_GPIO_NAND_NRW,
 145         .gpio_nle = RB91X_GPIO_NLE,
 146 };
 147
 148 static u8 rb711gr100_ssr_initdata[] = {
 149         BIT(RB91X_SSR_BIT_PCIE_POWER) |
 150         BIT(RB91X_SSR_BIT_USB_POWER) |
 151         BIT(RB91X_SSR_BIT_5)
 152 };
 153
 154 static struct gen_74x164_chip_platform_data rb711gr100_ssr_data = {
 155         .base = RB91X_SSR_GPIO_BASE,
 156         .num_registers = ARRAY_SIZE(rb711gr100_ssr_initdata),
 157         .init_data = rb711gr100_ssr_initdata,
 158 };
 159
 160 static struct spi_board_info rb711gr100_spi_info[] = {
 161         {
 162                 .bus_num        = 0,
 163                 .chip_select    = 0,
 164                 .max_speed_hz   = 25000000,
 165                 .modalias       = "m25p80",
 166                 .platform_data  = &rb711gr100_spi_flash_data,
 167         }, {
 168                 .bus_num        = 0,
 169                 .chip_select    = 1,
 170                 .max_speed_hz   = 10000000,
 171                 .modalias       = "74x164",
 172                 .platform_data  = &rb711gr100_ssr_data,
 173         }
 174 };
 175
 176 static int rb711gr100_spi_cs_gpios[2] = {
 177         -ENOENT,
 178         RB91X_GPIO_SSR_STROBE,
 179 };
 180
 181 static struct ath79_spi_platform_data rb711gr100_spi_data __initdata = {
 182         .bus_num = 0,
 183         .num_chipselect = 2,
 184         .cs_gpios = rb711gr100_spi_cs_gpios,
 185 };
 186
 187 static struct gpio_led rb711gr100_leds[] __initdata = {
 188         {
 189                 .name           = "rb:green:led1",
 190                 .gpio           = RB91X_GPIO_LED_1,
 191                 .active_low     = 0,
 192         },
 193         {
 194                 .name           = "rb:green:led2",
 195                 .gpio           = RB91X_GPIO_LED_2,
 196                 .active_low     = 0,
 197         },
 198         {
 199                 .name           = "rb:green:led3",
 200                 .gpio           = RB91X_GPIO_LED_3,
 201                 .active_low     = 0,
 202         },
 203         {
 204                 .name           = "rb:green:led4",
 205                 .gpio           = RB91X_GPIO_LED_4,
 206                 .active_low     = 0,
 207         },
 208         {
 209                 .name           = "rb:green:led5",
 210                 .gpio           = RB91X_GPIO_LED_5,
 211                 .active_low     = 0,
 212         },
 213         {
 214                 .name           = "rb:green:user",
 215                 .gpio           = RB91X_GPIO_LED_USER,
 216                 .active_low     = 0,
 217         },
 218         {
 219                 .name           = "rb:green:power",
 220                 .gpio           = RB91X_GPIO_LED_POWER,
 221                 .active_low     = 0,
 222                 .default_state  = LEDS_GPIO_DEFSTATE_ON,
 223         },
 224 };
 225
 226 static struct at803x_platform_data rb91x_at803x_data = {
 227         .disable_smarteee = 1,
 228         .enable_rgmii_rx_delay = 1,
 229         .enable_rgmii_tx_delay = 1,
 230 };
 231
 232 static struct mdio_board_info rb91x_mdio0_info[] = {
 233         {
 234                 .bus_id = "ag71xx-mdio.0",
 235                 .mdio_addr = 0,
 236                 .platform_data = &rb91x_at803x_data,
 237         },
 238 };
 239
 240 static void __init rb711gr100_init_partitions(const struct rb_info *info)
 241 {
 242         rb711gr100_spi_partitions[0].size = info->hard_cfg_offs;
 243         rb711gr100_spi_partitions[1].offset = info->hard_cfg_offs;
 244
 245         rb711gr100_spi_partitions[3].offset = info->soft_cfg_offs;
 246 }
 247
 248 void __init rb711gr100_wlan_init(void)
 249 {
 250         char *caldata;
 251         u8 wlan_mac[ETH_ALEN];
 252
 253         caldata = rb_get_wlan_data();
 254         if (caldata == NULL)
 255                 return;
 256
 257         ath79_init_mac(wlan_mac, ath79_mac_base, 1);
 258         ath79_register_wmac(caldata + 0x1000, wlan_mac);
 259
 260         kfree(caldata);
 261 }
 262
 263 #define RB_BOARD_INFO(_name, _flags)    \
 264         {                               \
 265                 .name = (_name),        \
 266                 .flags = (_flags),      \
 267         }
 268
 269 static const struct rb_board_info rb711gr100_boards[] __initconst = {
 270         RB_BOARD_INFO("911G-2HPnD", 0),
 271         RB_BOARD_INFO("911G-5HPnD", 0),
 272         RB_BOARD_INFO("912UAG-2HPnD", RB91X_FLAG_USB | RB91X_FLAG_PCIE),
 273         RB_BOARD_INFO("912UAG-5HPnD", RB91X_FLAG_USB | RB91X_FLAG_PCIE),
 274 };
 275
 276 static u32 rb711gr100_get_flags(const struct rb_info *info)
 277 {
 278         int i;
 279
 280         for (i = 0; i < ARRAY_SIZE(rb711gr100_boards); i++) {
 281                 const struct rb_board_info *bi;
 282
 283                 bi = &rb711gr100_boards[i];
 284                 if (strcmp(info->board_name, bi->name) == 0)
 285                         return bi->flags;
 286         }
 287
 288         return 0;
 289 }
 290
 291 static void __init rb711gr100_setup(void)
 292 {
 293         const struct rb_info *info;
 294         char buf[64];
 295         u32 flags;
 296
 297         info = rb_init_info((void *) KSEG1ADDR(0x1f000000), 0x10000);
 298         if (!info)
 299                 return;
 300
 301         scnprintf(buf, sizeof(buf), "Mikrotik RouterBOARD %s",
 302                   (info->board_name) ? info->board_name : "");
 303         mips_set_machine_name(buf);
 304
 305         rb711gr100_init_partitions(info);
 306         ath79_register_spi(&rb711gr100_spi_data, rb711gr100_spi_info,
 307                            ARRAY_SIZE(rb711gr100_spi_info));
 308
 309         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
 310                                    AR934X_ETH_CFG_RXD_DELAY |
 311                                    AR934X_ETH_CFG_SW_ONLY_MODE);
 312
 313         ath79_register_mdio(0, 0x0);
 314
 315         mdiobus_register_board_info(rb91x_mdio0_info,
 316                                     ARRAY_SIZE(rb91x_mdio0_info));
 317
 318         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 319         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 320         ath79_eth0_data.phy_mask = BIT(0);
 321         ath79_eth0_pll_data.pll_1000 = 0x02000000;
 322
 323         ath79_register_eth(0);
 324
 325         rb711gr100_wlan_init();
 326
 327         platform_device_register_data(NULL, "rb91x-nand", -1,
 328                                       &rb711gr100_nand_data,
 329                                       sizeof(rb711gr100_nand_data));
 330
 331         platform_device_register_data(NULL, "gpio-latch", -1,
 332                                       &rb711gr100_gpio_latch_data,
 333                                       sizeof(rb711gr100_gpio_latch_data));
 334
 335         ath79_register_leds_gpio(-1, ARRAY_SIZE(rb711gr100_leds),
 336                                  rb711gr100_leds);
 337
 338         flags = rb711gr100_get_flags(info);
 339
 340         if (flags & RB91X_FLAG_USB)
 341                 ath79_register_usb();
 342
 343         if (flags & RB91X_FLAG_PCIE)
 344                 ath79_register_pci();
 345
 346 }
 347
 348 MIPS_MACHINE_NONAME(ATH79_MACH_RB_711GR100, "711Gr100", rb711gr100_setup);