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