target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c

   1 /*
   2  *  MikroTik RouterBOARD 4xx series support
   3  *
   4  *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
   5  *  Copyright (C) 2008 Imre Kaloz <kaloz@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 #include <linux/platform_device.h>
  13 #include <linux/irq.h>
  14 #include <linux/mmc/host.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/spi/flash.h>
  17 #include <linux/spi/mmc_spi.h>
  18 #include <linux/input.h>
  19
  20 #include <asm/mips_machine.h>
  21 #include <asm/mach-ar71xx/ar71xx.h>
  22 #include <asm/mach-ar71xx/pci.h>
  23
  24 #include "devices.h"
  25
  26 #define RB4XX_GPIO_USER_LED     4
  27 #define RB4XX_GPIO_RESET_SWITCH 7
  28
  29 #define RB4XX_BUTTONS_POLL_INTERVAL     20
  30
  31 static struct gpio_led rb4xx_leds_gpio[] __initdata = {
  32         {
  33                 .name           = "rb4xx:yellow:user",
  34                 .gpio           = RB4XX_GPIO_USER_LED,
  35                 .active_low     = 0,
  36         },
  37 };
  38
  39 static struct gpio_button rb4xx_gpio_buttons[] __initdata = {
  40         {
  41                 .desc           = "reset_switch",
  42                 .type           = EV_KEY,
  43                 .code           = BTN_0,
  44                 .threshold      = 5,
  45                 .gpio           = RB4XX_GPIO_RESET_SWITCH,
  46                 .active_low     = 1,
  47         }
  48 };
  49
  50 static struct platform_device rb4xx_nand_device = {
  51         .name   = "rb4xx-nand",
  52         .id     = -1,
  53 };
  54
  55 static struct ar71xx_pci_irq rb4xx_pci_irqs[] __initdata = {
  56         {
  57                 .slot   = 1,
  58                 .pin    = 1,
  59                 .irq    = AR71XX_PCI_IRQ_DEV0,
  60         }, {
  61                 .slot   = 1,
  62                 .pin    = 2,
  63                 .irq    = AR71XX_PCI_IRQ_DEV1,
  64         }, {
  65                 .slot   = 2,
  66                 .pin    = 1,
  67                 .irq    = AR71XX_PCI_IRQ_DEV1,
  68         }, {
  69                 .slot   = 3,
  70                 .pin    = 1,
  71                 .irq    = AR71XX_PCI_IRQ_DEV2,
  72         }
  73 };
  74
  75 #if 0
  76 /*
  77  * SPI device support is experimental
  78  */
  79 static struct flash_platform_data rb4xx_flash_data = {
  80         .type   = "pm25lv512",
  81 };
  82
  83 static struct spi_board_info rb4xx_spi_info[] = {
  84         {
  85                 .bus_num        = 0,
  86                 .chip_select    = 0,
  87                 .max_speed_hz   = 25000000,
  88                 .modalias       = "m25p80",
  89                 .platform_data  = &rb4xx_flash_data,
  90         }
  91 };
  92
  93 static struct mmc_spi_platform_data rb433_mmc_data = {
  94         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
  95 };
  96
  97 static struct spi_board_info rb433_spi_info[] = {
  98         {
  99                 .bus_num        = 0,
 100                 .chip_select    = 0,
 101                 .max_speed_hz   = 25000000,
 102                 .modalias       = "m25p80",
 103                 .platform_data  = &rb433_flash_data,
 104         }, {
 105                 .bus_num        = 0,
 106                 .chip_select    = 2,
 107                 .max_speed_hz   = 25000000,
 108                 .modalias       = "mmc_spi",
 109                 .platform_data  = &rb433_mmc_data,
 110         }
 111 };
 112
 113 static u32 rb433_spi_get_ioc_base(u8 chip_select, int cs_high, int is_on)
 114 {
 115         u32 ret;
 116
 117         if (is_on == AR71XX_SPI_CS_INACTIVE) {
 118                 ret = SPI_IOC_CS0 | SPI_IOC_CS1;
 119         } else {
 120                 if (cs_high) {
 121                         ret = SPI_IOC_CS0 | SPI_IOC_CS1;
 122                 } else {
 123                         if ((chip_select ^ 2) == 0)
 124                                 ret = SPI_IOC_CS1 ^ (SPI_IOC_CS0 | SPI_IOC_CS1);
 125                         else
 126                                 ret = SPI_IOC_CS0 ^ (SPI_IOC_CS0 | SPI_IOC_CS1);
 127                 }
 128         }
 129
 130         return ret;
 131 }
 132
 133 struct ar71xx_spi_platform_data rb433_spi_data = {
 134         .bus_num                = 0,
 135         .num_chipselect         = 3,
 136         .get_ioc_base           = rb433_spi_get_ioc_base,
 137 };
 138
 139 static void rb4xx_add_device_spi(void)
 140 {
 141         ar71xx_add_device_spi(NULL, rb4xx_spi_info, ARRAY_SIZE(rb4xx_spi_info));
 142 }
 143
 144 static void rb433_add_device_spi(void)
 145 {
 146         ar71xx_add_device_spi(&rb433_spi_data, rb433_spi_info,
 147                                 ARRAY_SIZE(rb433_spi_info));
 148 }
 149 #else
 150 static inline void rb4xx_add_device_spi(void) {}
 151 static inline void rb433_add_device_spi(void) {}
 152 #endif
 153
 154 static void __init rb4xx_generic_setup(void)
 155 {
 156         ar71xx_gpio_function_enable(GPIO_FUNC_SPI_CS1_EN |
 157                                     GPIO_FUNC_SPI_CS2_EN);
 158
 159         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
 160                                         rb4xx_leds_gpio);
 161
 162         ar71xx_add_device_gpio_buttons(-1, RB4XX_BUTTONS_POLL_INTERVAL,
 163                                         ARRAY_SIZE(rb4xx_gpio_buttons),
 164                                         rb4xx_gpio_buttons);
 165
 166         platform_device_register(&rb4xx_nand_device);
 167 }
 168
 169 static void __init rb411_setup(void)
 170 {
 171         rb4xx_generic_setup();
 172         rb4xx_add_device_spi();
 173
 174         ar71xx_add_device_mdio(0xfffffffe);
 175
 176         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 177         ar71xx_eth0_data.phy_mask = 0x00000001;
 178
 179         ar71xx_add_device_eth(0);
 180
 181         ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
 182 }
 183
 184 MIPS_MACHINE(AR71XX_MACH_RB_411, "MikroTik RouterBOARD 411/A/AH", rb411_setup);
 185
 186 static void __init rb433_setup(void)
 187 {
 188         rb4xx_generic_setup();
 189         rb433_add_device_spi();
 190
 191         ar71xx_add_device_mdio(0xffffffe9);
 192
 193         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 194         ar71xx_eth0_data.phy_mask = 0x00000006;
 195         ar71xx_eth0_data.speed = SPEED_100;
 196         ar71xx_eth0_data.duplex = DUPLEX_FULL;
 197
 198         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
 199         ar71xx_eth1_data.phy_mask = 0x00000010;
 200
 201         ar71xx_add_device_eth(1);
 202         ar71xx_add_device_eth(0);
 203
 204         ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
 205 }
 206
 207 MIPS_MACHINE(AR71XX_MACH_RB_433, "MikroTik RouterBOARD 433/AH", rb433_setup);
 208
 209 static void __init rb450_setup(void)
 210 {
 211         rb4xx_generic_setup();
 212         rb4xx_add_device_spi();
 213
 214         ar71xx_add_device_mdio(0xffffffe0);
 215
 216         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 217         ar71xx_eth0_data.phy_mask = 0x0000000f;
 218         ar71xx_eth0_data.speed = SPEED_100;
 219         ar71xx_eth0_data.duplex = DUPLEX_FULL;
 220
 221         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
 222         ar71xx_eth1_data.phy_mask = 0x00000010;
 223
 224         ar71xx_add_device_eth(1);
 225         ar71xx_add_device_eth(0);
 226 }
 227
 228 MIPS_MACHINE(AR71XX_MACH_RB_450, "MikroTik RouterBOARD 450", rb450_setup);
 229
 230 static void __init rb493_setup(void)
 231 {
 232         rb4xx_generic_setup();
 233         rb4xx_add_device_spi();
 234
 235         ar71xx_add_device_mdio(0x3fffff00);
 236
 237         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 238         ar71xx_eth0_data.phy_mask = 0;
 239         ar71xx_eth0_data.speed = SPEED_100;
 240         ar71xx_eth0_data.duplex = DUPLEX_FULL;
 241
 242         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
 243         ar71xx_eth1_data.phy_mask = 0x00000001;
 244
 245         ar71xx_add_device_eth(0);
 246         ar71xx_add_device_eth(1);
 247
 248         ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
 249 }
 250
 251 MIPS_MACHINE(AR71XX_MACH_RB_493, "MikroTik RouterBOARD 493/AH", rb493_setup);