target/linux/ramips/files/arch/mips/ralink/rt305x/mach-rt-g32-revb.c

   1 /*
   2  *  Asus RT-G32 rev B board support
   3  *
   4  *  Copyright (C) 2011 Sergiy <piratfm@gmail.com>
   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 #include <linux/init.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/spi/spi.h>
  14 #include <linux/spi/flash.h>
  15 #include <linux/mtd/mtd.h>
  16 #include <linux/mtd/partitions.h>
  17
  18 #include <asm/mach-ralink/machine.h>
  19 #include <asm/mach-ralink/dev-gpio-buttons.h>
  20 #include <asm/mach-ralink/rt305x.h>
  21 #include <asm/mach-ralink/rt305x_regs.h>
  22
  23 #include "devices.h"
  24
  25 #define RT_G32B_GPIO_BUTTON_WPS         0       /* active low */
  26 #define RT_G32B_GPIO_BUTTON_RESET       10      /* active low */
  27
  28 #define RT_G32B_BUTTONS_POLL_INTERVAL   20
  29
  30 #ifdef CONFIG_MTD_PARTITIONS
  31 static struct mtd_partition rt_g32b_partitions[] = {
  32         {
  33                 .name   = "u-boot",
  34                 .offset = 0,
  35                 .size   = 0x030000,
  36                 .mask_flags = MTD_WRITEABLE,
  37         }, {
  38                 .name   = "devdata",
  39                 .offset = 0x030000,
  40                 .size   = 0x010000,
  41                 .mask_flags = MTD_WRITEABLE,
  42         }, {
  43                 .name   = "devconf",
  44                 .offset = 0x040000,
  45                 .size   = 0x010000,
  46                 .mask_flags = MTD_WRITEABLE,
  47         }, {
  48                 .name   = "kernel",
  49                 .offset = 0x050000,
  50                 .size   = 0x0d0000,
  51         }, {
  52                 .name   = "rootfs",
  53                 .offset = 0x120000,
  54                 .size   = 0x2e0000,
  55         }, {
  56                 .name   = "firmware",
  57                 .offset = 0x050000,
  58                 .size   = 0x3b0000,
  59         }
  60 };
  61 #endif /* CONFIG_MTD_PARTITIONS */
  62
  63 const struct flash_platform_data rt_g32b_flash = {
  64         .type           = "mx25l3205d",
  65 #ifdef CONFIG_MTD_PARTITIONS
  66         .parts          = rt_g32b_partitions,
  67         .nr_parts       = ARRAY_SIZE(rt_g32b_partitions),
  68 #endif
  69 };
  70
  71 struct spi_board_info __initdata rt_g32b_spi_slave_info[] = {
  72         {
  73                 .modalias       = "m25p80",
  74                 .platform_data  = &rt_g32b_flash,
  75                 .irq            = -1,
  76                 .max_speed_hz   = 10000000,
  77                 .bus_num        = 0,
  78                 .chip_select    = 0,
  79         },
  80 };
  81
  82 static struct gpio_button rt_g32b_gpio_buttons[] __initdata = {
  83         {
  84                 .desc           = "reset",
  85                 .type           = EV_KEY,
  86                 .code           = KEY_RESTART,
  87                 .threshold      = 3,
  88                 .gpio           = RT_G32B_GPIO_BUTTON_RESET,
  89                 .active_low     = 1,
  90         }, {
  91                 .desc           = "wps",
  92                 .type           = EV_KEY,
  93                 .code           = KEY_WPS_BUTTON,
  94                 .threshold      = 3,
  95                 .gpio           = RT_G32B_GPIO_BUTTON_WPS,
  96                 .active_low     = 1,
  97         }
  98 };
  99
 100 static void __init rt_g32b_init(void)
 101 {
 102         rt305x_gpio_init(RT305X_GPIO_MODE_GPIO << RT305X_GPIO_MODE_UART0_SHIFT);
 103         rt305x_register_spi(rt_g32b_spi_slave_info,
 104                             ARRAY_SIZE(rt_g32b_spi_slave_info));
 105
 106         rt305x_register_ethernet();
 107         ramips_register_gpio_buttons(-1, RT_G32B_BUTTONS_POLL_INTERVAL,
 108                                      ARRAY_SIZE(rt_g32b_gpio_buttons),
 109                                      rt_g32b_gpio_buttons);
 110         rt305x_register_wifi();
 111         rt305x_register_wdt();
 112 }
 113
 114 MIPS_MACHINE(RAMIPS_MACH_RT_G32_B1, "RT-G32-B1", "Asus RT-G32 B1",
 115              rt_g32b_init);