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/phy.h>
  14 #include <linux/delay.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/ath9k_platform.h>
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/nand.h>
  19 #include <linux/mtd/partitions.h>
  20 #include <linux/spi/spi.h>
  21 #include <linux/spi/74x164.h>
  22 #include <linux/spi/flash.h>
  23 #include <linux/routerboot.h>
  24 #include <linux/gpio.h>
  25 #include <linux/platform_data/gpio-latch.h>
  26 #include <linux/platform_data/rb91x_nand.h>
  27
  28 #include <asm/prom.h>
  29 #include <asm/mach-ath79/ath79.h>
  30 #include <asm/mach-ath79/ath79_spi_platform.h>
  31 #include <asm/mach-ath79/ar71xx_regs.h>
  32
  33 #include "common.h"
  34 #include "dev-eth.h"
  35 #include "dev-leds-gpio.h"
  36 #include "dev-m25p80.h"
  37 #include "dev-nfc.h"
  38 #include "dev-usb.h"
  39 #include "dev-wmac.h"
  40 #include "machtypes.h"
  41 #include "pci.h"
  42 #include "routerboot.h"
  43
  44 #define RB_ROUTERBOOT_OFFSET    0x0000
  45 #define RB_ROUTERBOOT_MIN_SIZE  0xb000
  46 #define RB_HARD_CFG_SIZE        0x1000
  47 #define RB_BIOS_OFFSET          0xd000
  48 #define RB_BIOS_SIZE            0x1000
  49 #define RB_SOFT_CFG_OFFSET      0xf000
  50 #define RB_SOFT_CFG_SIZE        0x1000
  51
  52 #define RB91X_FLAG_USB          BIT(0)
  53 #define RB91X_FLAG_PCIE         BIT(1)
  54
  55 #define RB91X_LATCH_GPIO_BASE   AR934X_GPIO_COUNT
  56 #define RB91X_LATCH_GPIO(_x)    (RB91X_LATCH_GPIO_BASE + (_x))
  57
  58 #define RB91X_GPIO_NAND_READ    RB91X_LATCH_GPIO(3)
  59 #define RB91X_GPIO_NAND_RDY     RB91X_LATCH_GPIO(4)
  60 #define RB91X_GPIO_NLE          RB91X_LATCH_GPIO(11)
  61 #define RB91X_GPIO_NAND_NRW     RB91X_LATCH_GPIO(12)
  62 #define RB91X_GPIO_NAND_NCE     RB91X_LATCH_GPIO(13)
  63 #define RB91X_GPIO_NAND_CLE     RB91X_LATCH_GPIO(14)
  64 #define RB91X_GPIO_NAND_ALE     RB91X_LATCH_GPIO(15)
  65
  66 struct rb_board_info {
  67         const char *name;
  68         u32 flags;
  69 };
  70
  71 static struct mtd_partition rb711gr100_spi_partitions[] = {
  72         {
  73                 .name           = "routerboot",
  74                 .offset         = RB_ROUTERBOOT_OFFSET,
  75                 .mask_flags     = MTD_WRITEABLE,
  76         }, {
  77                 .name           = "hard_config",
  78                 .size           = RB_HARD_CFG_SIZE,
  79                 .mask_flags     = MTD_WRITEABLE,
  80         }, {
  81                 .name           = "bios",
  82                 .offset         = RB_BIOS_OFFSET,
  83                 .size           = RB_BIOS_SIZE,
  84                 .mask_flags     = MTD_WRITEABLE,
  85         }, {
  86                 .name           = "soft_config",
  87                 .size           = RB_SOFT_CFG_SIZE,
  88         }
  89 };
  90
  91 static struct flash_platform_data rb711gr100_spi_flash_data = {
  92         .parts          = rb711gr100_spi_partitions,
  93         .nr_parts       = ARRAY_SIZE(rb711gr100_spi_partitions),
  94 };
  95
  96 static int rb711gr100_gpio_latch_gpios[AR934X_GPIO_COUNT] __initdata = {
  97         0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
  98         12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22
  99 };
 100
 101 static struct gpio_latch_platform_data rb711gr100_gpio_latch_data __initdata = {
 102         .base = RB91X_LATCH_GPIO_BASE,
 103         .num_gpios = ARRAY_SIZE(rb711gr100_gpio_latch_gpios),
 104         .gpios = rb711gr100_gpio_latch_gpios,
 105         .le_gpio_index = 11,
 106         .le_active_low = true,
 107 };
 108
 109 static struct rb91x_nand_platform_data rb711gr100_nand_data __initdata = {
 110         .gpio_nce = RB91X_GPIO_NAND_NCE,
 111         .gpio_ale = RB91X_GPIO_NAND_ALE,
 112         .gpio_cle = RB91X_GPIO_NAND_CLE,
 113         .gpio_rdy = RB91X_GPIO_NAND_RDY,
 114         .gpio_read = RB91X_GPIO_NAND_READ,
 115         .gpio_nrw = RB91X_GPIO_NAND_NRW,
 116         .gpio_nle = RB91X_GPIO_NLE,
 117 };
 118
 119 static void __init rb711gr100_init_partitions(const struct rb_info *info)
 120 {
 121         rb711gr100_spi_partitions[0].size = info->hard_cfg_offs;
 122         rb711gr100_spi_partitions[1].offset = info->hard_cfg_offs;
 123
 124         rb711gr100_spi_partitions[3].offset = info->soft_cfg_offs;
 125 }
 126
 127 void __init rb711gr100_wlan_init(void)
 128 {
 129         char *caldata;
 130         u8 wlan_mac[ETH_ALEN];
 131
 132         caldata = rb_get_wlan_data();
 133         if (caldata == NULL)
 134                 return;
 135
 136         ath79_init_mac(wlan_mac, ath79_mac_base, 1);
 137         ath79_register_wmac(caldata + 0x1000, wlan_mac);
 138
 139         kfree(caldata);
 140 }
 141
 142 #define RB_BOARD_INFO(_name, _flags)    \
 143         {                               \
 144                 .name = (_name),        \
 145                 .flags = (_flags),      \
 146         }
 147
 148 static const struct rb_board_info rb711gr100_boards[] __initconst = {
 149         RB_BOARD_INFO("911G-2HPnD", 0),
 150         RB_BOARD_INFO("911G-5HPnD", 0),
 151         RB_BOARD_INFO("912UAG-2HPnD", RB91X_FLAG_USB | RB91X_FLAG_PCIE),
 152         RB_BOARD_INFO("912UAG-5HPnD", RB91X_FLAG_USB | RB91X_FLAG_PCIE),
 153 };
 154
 155 static u32 rb711gr100_get_flags(const struct rb_info *info)
 156 {
 157         int i;
 158
 159         for (i = 0; i < ARRAY_SIZE(rb711gr100_boards); i++) {
 160                 const struct rb_board_info *bi;
 161
 162                 bi = &rb711gr100_boards[i];
 163                 if (strcmp(info->board_name, bi->name) == 0)
 164                         return bi->flags;
 165         }
 166
 167         return 0;
 168 }
 169
 170 static void __init rb711gr100_setup(void)
 171 {
 172         const struct rb_info *info;
 173         char buf[64];
 174         u32 flags;
 175
 176         info = rb_init_info((void *) KSEG1ADDR(0x1f000000), 0x10000);
 177         if (!info)
 178                 return;
 179
 180         scnprintf(buf, sizeof(buf), "Mikrotik RouterBOARD %s",
 181                   (info->board_name) ? info->board_name : "");
 182         mips_set_machine_name(buf);
 183
 184         rb711gr100_init_partitions(info);
 185         ath79_register_m25p80(&rb711gr100_spi_flash_data);
 186
 187         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
 188                                    AR934X_ETH_CFG_SW_ONLY_MODE);
 189
 190         ath79_register_mdio(0, 0x0);
 191
 192         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 193         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 194         ath79_eth0_data.phy_mask = BIT(0);
 195         ath79_eth0_pll_data.pll_1000 = 0x02000000;
 196
 197         ath79_register_eth(0);
 198
 199         rb711gr100_wlan_init();
 200
 201         platform_device_register_data(NULL, "rb91x-nand", -1,
 202                                       &rb711gr100_nand_data,
 203                                       sizeof(rb711gr100_nand_data));
 204
 205         platform_device_register_data(NULL, "gpio-latch", -1,
 206                                       &rb711gr100_gpio_latch_data,
 207                                       sizeof(rb711gr100_gpio_latch_data));
 208
 209         flags = rb711gr100_get_flags(info);
 210
 211         if (flags & RB91X_FLAG_USB)
 212                 ath79_register_usb();
 213
 214         if (flags & RB91X_FLAG_PCIE)
 215                 ath79_register_pci();
 216
 217 }
 218
 219 MIPS_MACHINE_NONAME(ATH79_MACH_RB_711GR100, "711Gr100", rb711gr100_setup);