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 #include <asm/mach-ar71xx/platform.h>
  24
  25 #define RB4XX_GPIO_USER_LED     4
  26 #define RB4XX_GPIO_RESET_SWITCH 7
  27
  28 #define RB4XX_BUTTONS_POLL_INTERVAL     20
  29
  30 static struct gpio_led rb4xx_leds_gpio[] __initdata = {
  31         {
  32                 .name           = "rb4xx:yellow:user",
  33                 .gpio           = RB4XX_GPIO_USER_LED,
  34                 .active_low     = 0,
  35         },
  36 };
  37
  38 static struct gpio_button rb4xx_gpio_buttons[] __initdata = {
  39         {
  40                 .desc           = "reset_switch",
  41                 .type           = EV_KEY,
  42                 .code           = BTN_0,
  43                 .threshold      = 5,
  44                 .gpio           = RB4XX_GPIO_RESET_SWITCH,
  45                 .active_low     = 1,
  46         }
  47 };
  48
  49 static struct platform_device rb4xx_nand_device = {
  50         .name   = "rb4xx-nand",
  51         .id     = -1,
  52 };
  53
  54 static struct ar71xx_pci_irq rb4xx_pci_irqs[] __initdata = {
  55         {
  56                 .slot   = 1,
  57                 .pin    = 1,
  58                 .irq    = AR71XX_PCI_IRQ_DEV0,
  59         }, {
  60                 .slot   = 1,
  61                 .pin    = 2,
  62                 .irq    = AR71XX_PCI_IRQ_DEV1,
  63         }, {
  64                 .slot   = 2,
  65                 .pin    = 1,
  66                 .irq    = AR71XX_PCI_IRQ_DEV1,
  67         }, {
  68                 .slot   = 3,
  69                 .pin    = 1,
  70                 .irq    = AR71XX_PCI_IRQ_DEV2,
  71         }
  72 };
  73
  74 #if 0
  75 /*
  76  * SPI device support is experimental
  77  */
  78 static struct flash_platform_data rb4xx_flash_data = {
  79         .type   = "pm25lv512",
  80 };
  81
  82 static struct spi_board_info rb4xx_spi_info[] = {
  83         {
  84                 .bus_num        = 0,
  85                 .chip_select    = 0,
  86                 .max_speed_hz   = 25000000,
  87                 .modalias       = "m25p80",
  88                 .platform_data  = &rb4xx_flash_data,
  89         }
  90 };
  91
  92 static struct mmc_spi_platform_data rb433_mmc_data = {
  93         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
  94 };
  95
  96 static struct spi_board_info rb433_spi_info[] = {
  97         {
  98                 .bus_num        = 0,
  99                 .chip_select    = 0,
 100                 .max_speed_hz   = 25000000,
 101                 .modalias       = "m25p80",
 102                 .platform_data  = &rb433_flash_data,
 103         }, {
 104                 .bus_num        = 0,
 105                 .chip_select    = 2,
 106                 .max_speed_hz   = 25000000,
 107                 .modalias       = "mmc_spi",
 108                 .platform_data  = &rb433_mmc_data,
 109         }
 110 };
 111
 112 static u32 rb433_spi_get_ioc_base(u8 chip_select, int cs_high, int is_on)
 113 {
 114         u32 ret;
 115
 116         if (is_on == AR71XX_SPI_CS_INACTIVE) {
 117                 ret = SPI_IOC_CS0 | SPI_IOC_CS1;
 118         } else {
 119                 if (cs_high) {
 120                         ret = SPI_IOC_CS0 | SPI_IOC_CS1;
 121                 } else {
 122                         if ((chip_select ^ 2) == 0)
 123                                 ret = SPI_IOC_CS1 ^ (SPI_IOC_CS0 | SPI_IOC_CS1);
 124                         else
 125                                 ret = SPI_IOC_CS0 ^ (SPI_IOC_CS0 | SPI_IOC_CS1);
 126                 }
 127         }
 128
 129         return ret;
 130 }
 131
 132 struct ar71xx_spi_platform_data rb433_spi_data = {
 133         .bus_num                = 0,
 134         .num_chipselect         = 3,
 135         .get_ioc_base           = rb433_spi_get_ioc_base,
 136 };
 137
 138 static void rb4xx_add_device_spi(void)
 139 {
 140         ar71xx_add_device_spi(NULL, rb4xx_spi_info, ARRAY_SIZE(rb4xx_spi_info));
 141 }
 142
 143 static void rb433_add_device_spi(void)
 144 {
 145         ar71xx_add_device_spi(&rb433_spi_data, rb433_spi_info,
 146                                 ARRAY_SIZE(rb433_spi_info));
 147 }
 148 #else
 149 static inline void rb4xx_add_device_spi(void) {}
 150 static inline void rb433_add_device_spi(void) {}
 151 #endif
 152
 153 static void __init rb411_setup(void)
 154 {
 155         rb4xx_add_device_spi();
 156
 157         ar71xx_add_device_mdio(0xfffffffe);
 158         ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
 159
 160         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
 161                                         rb4xx_leds_gpio);
 162
 163         ar71xx_add_device_gpio_buttons(-1, RB4XX_BUTTONS_POLL_INTERVAL,
 164                                         ARRAY_SIZE(rb4xx_gpio_buttons),
 165                                         rb4xx_gpio_buttons);
 166
 167         platform_device_register(&rb4xx_nand_device);
 168
 169         ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
 170 }
 171
 172 MIPS_MACHINE(MACH_AR71XX_RB_411, "MikroTik RouterBOARD 411/A/AH", rb411_setup);
 173
 174 static void __init rb433_setup(void)
 175 {
 176         rb433_add_device_spi();
 177
 178         ar71xx_add_device_mdio(0xffffffec);
 179         ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0x00000010);
 180         ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000003);
 181
 182         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
 183                                         rb4xx_leds_gpio);
 184
 185         ar71xx_add_device_gpio_buttons(-1, RB4XX_BUTTONS_POLL_INTERVAL,
 186                                         ARRAY_SIZE(rb4xx_gpio_buttons),
 187                                         rb4xx_gpio_buttons);
 188
 189         platform_device_register(&rb4xx_nand_device);
 190
 191         ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
 192 }
 193
 194 MIPS_MACHINE(MACH_AR71XX_RB_433, "MikroTik RouterBOARD 433/AH", rb433_setup);
 195
 196 static void __init rb450_setup(void)
 197 {
 198         rb4xx_add_device_spi();
 199
 200         ar71xx_add_device_mdio(0xffffffe0);
 201         ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0x00000010);
 202         ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x0000000f);
 203
 204         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
 205                                         rb4xx_leds_gpio);
 206
 207         ar71xx_add_device_gpio_buttons(-1, RB4XX_BUTTONS_POLL_INTERVAL,
 208                                         ARRAY_SIZE(rb4xx_gpio_buttons),
 209                                         rb4xx_gpio_buttons);
 210
 211         platform_device_register(&rb4xx_nand_device);
 212 }
 213
 214 MIPS_MACHINE(MACH_AR71XX_RB_450, "MikroTik RouterBOARD 450", rb450_setup);