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/leds.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
  27 static struct gpio_led rb4xx_leds_gpio[] = {
  28         {
  29                 .name           = "rb4xx:yellow:user",
  30                 .gpio           = RB4XX_GPIO_USER_LED,
  31                 .active_low     = 0,
  32         },
  33 };
  34
  35 static struct gpio_led_platform_data rb4xx_leds_gpio_data = {
  36         .leds           = rb4xx_leds_gpio,
  37         .num_leds       = ARRAY_SIZE(rb4xx_leds_gpio),
  38 };
  39
  40 static struct platform_device rb4xx_leds_gpio_device = {
  41         .name   = "leds-gpio",
  42         .id     = -1,
  43         .dev = {
  44                 .platform_data = &rb4xx_leds_gpio_data,
  45         }
  46 };
  47
  48 static struct platform_device rb4xx_nand_device = {
  49         .name   = "rb4xx-nand",
  50         .id     = -1,
  51 };
  52
  53 static struct ar71xx_pci_irq rb4xx_pci_irqs[] __initdata = {
  54         {
  55                 .slot   = 1,
  56                 .pin    = 1,
  57                 .irq    = AR71XX_PCI_IRQ_DEV0,
  58         }, {
  59                 .slot   = 1,
  60                 .pin    = 2,
  61                 .irq    = AR71XX_PCI_IRQ_DEV1,
  62         }, {
  63                 .slot   = 2,
  64                 .pin    = 1,
  65                 .irq    = AR71XX_PCI_IRQ_DEV1,
  66         }, {
  67                 .slot   = 3,
  68                 .pin    = 1,
  69                 .irq    = AR71XX_PCI_IRQ_DEV2,
  70         }
  71 };
  72
  73 #if 0
  74 /*
  75  * SPI device support is experimental
  76  */
  77 static struct flash_platform_data rb4xx_flash_data = {
  78         .type   = "pm25lv512",
  79 };
  80
  81 static struct spi_board_info rb4xx_spi_info[] = {
  82         {
  83                 .bus_num        = 0,
  84                 .chip_select    = 0,
  85                 .max_speed_hz   = 25000000,
  86                 .modalias       = "m25p80",
  87                 .platform_data  = &rb4xx_flash_data,
  88         }
  89 };
  90
  91 static struct mmc_spi_platform_data rb433_mmc_data = {
  92         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
  93 };
  94
  95 static struct spi_board_info rb433_spi_info[] = {
  96         {
  97                 .bus_num        = 0,
  98                 .chip_select    = 0,
  99                 .max_speed_hz   = 25000000,
 100                 .modalias       = "m25p80",
 101                 .platform_data  = &rb433_flash_data,
 102         }, {
 103                 .bus_num        = 0,
 104                 .chip_select    = 2,
 105                 .max_speed_hz   = 25000000,
 106                 .modalias       = "mmc_spi",
 107                 .platform_data  = &rb433_mmc_data,
 108         }
 109 };
 110
 111 static u32 rb433_spi_get_ioc_base(u8 chip_select, int cs_high, int is_on)
 112 {
 113         u32 ret;
 114
 115         if (is_on == AR71XX_SPI_CS_INACTIVE) {
 116                 ret = SPI_IOC_CS0 | SPI_IOC_CS1;
 117         } else {
 118                 if (cs_high) {
 119                         ret = SPI_IOC_CS0 | SPI_IOC_CS1;
 120                 } else {
 121                         if ((chip_select ^ 2) == 0)
 122                                 ret = SPI_IOC_CS1 ^ (SPI_IOC_CS0 | SPI_IOC_CS1);
 123                         else
 124                                 ret = SPI_IOC_CS0 ^ (SPI_IOC_CS0 | SPI_IOC_CS1);
 125                 }
 126         }
 127
 128         return ret;
 129 }
 130
 131 struct ar71xx_spi_platform_data rb433_spi_data = {
 132         .bus_num                = 0,
 133         .num_chipselect         = 3,
 134         .get_ioc_base           = rb433_spi_get_ioc_base,
 135 };
 136
 137 static void rb4xx_add_device_spi(void)
 138 {
 139         ar71xx_add_device_spi(NULL, rb4xx_spi_info, ARRAY_SIZE(rb4xx_spi_info));
 140 }
 141
 142 static void rb433_add_device_spi(void)
 143 {
 144         ar71xx_add_device_spi(&rb433_spi_data, rb433_spi_info,
 145                                 ARRAY_SIZE(rb433_spi_info));
 146 }
 147 #else
 148 static inline void rb4xx_add_device_spi(void) {}
 149 static inline void rb433_add_device_spi(void) {}
 150 #endif
 151
 152 static void __init rb411_setup(void)
 153 {
 154         rb4xx_add_device_spi();
 155
 156         ar71xx_add_device_mdio(0xfffffffe);
 157         ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
 158
 159         platform_device_register(&rb4xx_leds_gpio_device);
 160         platform_device_register(&rb4xx_nand_device);
 161
 162         ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
 163 }
 164
 165 MIPS_MACHINE(MACH_AR71XX_RB_411, "MikroTik RouterBOARD 411/A/AH", rb411_setup);
 166
 167 static void __init rb433_setup(void)
 168 {
 169         rb433_add_device_spi();
 170
 171         ar71xx_add_device_mdio(0xffffffec);
 172         ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0x00000010);
 173         ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000003);
 174
 175         platform_device_register(&rb4xx_leds_gpio_device);
 176         platform_device_register(&rb4xx_nand_device);
 177
 178         ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
 179 }
 180
 181 MIPS_MACHINE(MACH_AR71XX_RB_433, "MikroTik RouterBOARD 433/AH", rb433_setup);
 182
 183 static void __init rb450_setup(void)
 184 {
 185         rb4xx_add_device_spi();
 186
 187         ar71xx_add_device_mdio(0xffffffe0);
 188         ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0x00000010);
 189         ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x0000000f);
 190
 191         platform_device_register(&rb4xx_leds_gpio_device);
 192         platform_device_register(&rb4xx_nand_device);
 193 }
 194
 195 MIPS_MACHINE(MACH_AR71XX_RB_450, "MikroTik RouterBOARD 450", rb450_setup);