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
  19 #include <asm/mips_machine.h>
  20 #include <asm/mach-ar71xx/ar71xx.h>
  21 #include <asm/mach-ar71xx/pci.h>
  22 #include <asm/mach-ar71xx/platform.h>
  23
  24 #define RB4XX_GPIO_USER_LED     4
  25
  26 static struct gpio_led rb4xx_leds_gpio[] __initdata = {
  27         {
  28                 .name           = "rb4xx:yellow:user",
  29                 .gpio           = RB4XX_GPIO_USER_LED,
  30                 .active_low     = 0,
  31         },
  32 };
  33
  34 static struct platform_device rb4xx_nand_device = {
  35         .name   = "rb4xx-nand",
  36         .id     = -1,
  37 };
  38
  39 static struct ar71xx_pci_irq rb4xx_pci_irqs[] __initdata = {
  40         {
  41                 .slot   = 1,
  42                 .pin    = 1,
  43                 .irq    = AR71XX_PCI_IRQ_DEV0,
  44         }, {
  45                 .slot   = 1,
  46                 .pin    = 2,
  47                 .irq    = AR71XX_PCI_IRQ_DEV1,
  48         }, {
  49                 .slot   = 2,
  50                 .pin    = 1,
  51                 .irq    = AR71XX_PCI_IRQ_DEV1,
  52         }, {
  53                 .slot   = 3,
  54                 .pin    = 1,
  55                 .irq    = AR71XX_PCI_IRQ_DEV2,
  56         }
  57 };
  58
  59 #if 0
  60 /*
  61  * SPI device support is experimental
  62  */
  63 static struct flash_platform_data rb4xx_flash_data = {
  64         .type   = "pm25lv512",
  65 };
  66
  67 static struct spi_board_info rb4xx_spi_info[] = {
  68         {
  69                 .bus_num        = 0,
  70                 .chip_select    = 0,
  71                 .max_speed_hz   = 25000000,
  72                 .modalias       = "m25p80",
  73                 .platform_data  = &rb4xx_flash_data,
  74         }
  75 };
  76
  77 static struct mmc_spi_platform_data rb433_mmc_data = {
  78         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
  79 };
  80
  81 static struct spi_board_info rb433_spi_info[] = {
  82         {
  83                 .bus_num        = 0,
  84                 .chip_select    = 0,
  85                 .max_speed_hz   = 25000000,
  86                 .modalias       = "m25p80",
  87                 .platform_data  = &rb433_flash_data,
  88         }, {
  89                 .bus_num        = 0,
  90                 .chip_select    = 2,
  91                 .max_speed_hz   = 25000000,
  92                 .modalias       = "mmc_spi",
  93                 .platform_data  = &rb433_mmc_data,
  94         }
  95 };
  96
  97 static u32 rb433_spi_get_ioc_base(u8 chip_select, int cs_high, int is_on)
  98 {
  99         u32 ret;
 100
 101         if (is_on == AR71XX_SPI_CS_INACTIVE) {
 102                 ret = SPI_IOC_CS0 | SPI_IOC_CS1;
 103         } else {
 104                 if (cs_high) {
 105                         ret = SPI_IOC_CS0 | SPI_IOC_CS1;
 106                 } else {
 107                         if ((chip_select ^ 2) == 0)
 108                                 ret = SPI_IOC_CS1 ^ (SPI_IOC_CS0 | SPI_IOC_CS1);
 109                         else
 110                                 ret = SPI_IOC_CS0 ^ (SPI_IOC_CS0 | SPI_IOC_CS1);
 111                 }
 112         }
 113
 114         return ret;
 115 }
 116
 117 struct ar71xx_spi_platform_data rb433_spi_data = {
 118         .bus_num                = 0,
 119         .num_chipselect         = 3,
 120         .get_ioc_base           = rb433_spi_get_ioc_base,
 121 };
 122
 123 static void rb4xx_add_device_spi(void)
 124 {
 125         ar71xx_add_device_spi(NULL, rb4xx_spi_info, ARRAY_SIZE(rb4xx_spi_info));
 126 }
 127
 128 static void rb433_add_device_spi(void)
 129 {
 130         ar71xx_add_device_spi(&rb433_spi_data, rb433_spi_info,
 131                                 ARRAY_SIZE(rb433_spi_info));
 132 }
 133 #else
 134 static inline void rb4xx_add_device_spi(void) {}
 135 static inline void rb433_add_device_spi(void) {}
 136 #endif
 137
 138 static void __init rb411_setup(void)
 139 {
 140         rb4xx_add_device_spi();
 141
 142         ar71xx_add_device_mdio(0xfffffffe);
 143         ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
 144
 145         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
 146                                         rb4xx_leds_gpio);
 147
 148         platform_device_register(&rb4xx_nand_device);
 149
 150         ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
 151 }
 152
 153 MIPS_MACHINE(MACH_AR71XX_RB_411, "MikroTik RouterBOARD 411/A/AH", rb411_setup);
 154
 155 static void __init rb433_setup(void)
 156 {
 157         rb433_add_device_spi();
 158
 159         ar71xx_add_device_mdio(0xffffffec);
 160         ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0x00000010);
 161         ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000003);
 162
 163         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
 164                                         rb4xx_leds_gpio);
 165
 166         platform_device_register(&rb4xx_nand_device);
 167
 168         ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
 169 }
 170
 171 MIPS_MACHINE(MACH_AR71XX_RB_433, "MikroTik RouterBOARD 433/AH", rb433_setup);
 172
 173 static void __init rb450_setup(void)
 174 {
 175         rb4xx_add_device_spi();
 176
 177         ar71xx_add_device_mdio(0xffffffe0);
 178         ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0x00000010);
 179         ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x0000000f);
 180
 181         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
 182                                         rb4xx_leds_gpio);
 183
 184         platform_device_register(&rb4xx_nand_device);
 185 }
 186
 187 MIPS_MACHINE(MACH_AR71XX_RB_450, "MikroTik RouterBOARD 450", rb450_setup);