arch/arm/mach-omap2/board-2430sdp.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-2430sdp.c
   3  *
   4  * Copyright (C) 2006 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-generic.c
   7  *
   8  * Initial Code : Based on a patch from Komal Shah and Richard Woodruff
   9  * Updated the Code for 2430 SDP : Syed Mohammed Khasim
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/mtd/mtd.h>
  20 #include <linux/mtd/partitions.h>
  21 #include <linux/delay.h>
  22 #include <linux/i2c/twl.h>
  23 #include <linux/err.h>
  24 #include <linux/clk.h>
  25 #include <linux/io.h>
  26
  27 #include <mach/hardware.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31 #include <asm/mach/flash.h>
  32
  33 #include <mach/gpio.h>
  34 #include <plat/mux.h>
  35 #include <plat/board.h>
  36 #include <plat/common.h>
  37 #include <plat/gpmc.h>
  38 #include <plat/usb.h>
  39 #include <plat/gpmc-smc91x.h>
  40
  41 #include "mmc-twl4030.h"
  42
  43 #define SDP2430_CS0_BASE        0x04000000
  44 #define SECONDARY_LCD_GPIO              147
  45
  46 static struct mtd_partition sdp2430_partitions[] = {
  47         /* bootloader (U-Boot, etc) in first sector */
  48         {
  49                 .name           = "bootloader",
  50                 .offset         = 0,
  51                 .size           = SZ_256K,
  52                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  53          },
  54         /* bootloader params in the next sector */
  55         {
  56                 .name           = "params",
  57                 .offset         = MTDPART_OFS_APPEND,
  58                 .size           = SZ_128K,
  59                 .mask_flags     = 0,
  60          },
  61         /* kernel */
  62         {
  63                 .name           = "kernel",
  64                 .offset         = MTDPART_OFS_APPEND,
  65                 .size           = SZ_2M,
  66                 .mask_flags     = 0
  67         },
  68         /* file system */
  69         {
  70                 .name           = "filesystem",
  71                 .offset         = MTDPART_OFS_APPEND,
  72                 .size           = MTDPART_SIZ_FULL,
  73                 .mask_flags     = 0
  74         }
  75 };
  76
  77 static struct flash_platform_data sdp2430_flash_data = {
  78         .map_name       = "cfi_probe",
  79         .width          = 2,
  80         .parts          = sdp2430_partitions,
  81         .nr_parts       = ARRAY_SIZE(sdp2430_partitions),
  82 };
  83
  84 static struct resource sdp2430_flash_resource = {
  85         .start          = SDP2430_CS0_BASE,
  86         .end            = SDP2430_CS0_BASE + SZ_64M - 1,
  87         .flags          = IORESOURCE_MEM,
  88 };
  89
  90 static struct platform_device sdp2430_flash_device = {
  91         .name           = "omapflash",
  92         .id             = 0,
  93         .dev = {
  94                 .platform_data  = &sdp2430_flash_data,
  95         },
  96         .num_resources  = 1,
  97         .resource       = &sdp2430_flash_resource,
  98 };
  99
 100 static struct platform_device sdp2430_lcd_device = {
 101         .name           = "sdp2430_lcd",
 102         .id             = -1,
 103 };
 104
 105 static struct platform_device *sdp2430_devices[] __initdata = {
 106         &sdp2430_flash_device,
 107         &sdp2430_lcd_device,
 108 };
 109
 110 static struct omap_lcd_config sdp2430_lcd_config __initdata = {
 111         .ctrl_name      = "internal",
 112 };
 113
 114 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91x_MODULE)
 115
 116 static struct omap_smc91x_platform_data board_smc91x_data = {
 117         .cs             = 5,
 118         .gpio_irq       = 149,
 119         .flags          = GPMC_MUX_ADD_DATA | GPMC_TIMINGS_SMC91C96 |
 120                                 IORESOURCE_IRQ_LOWLEVEL,
 121
 122 };
 123
 124 static void __init board_smc91x_init(void)
 125 {
 126         if (omap_rev() > OMAP3430_REV_ES1_0)
 127                 board_smc91x_data.gpio_irq = 6;
 128         else
 129                 board_smc91x_data.gpio_irq = 29;
 130
 131         gpmc_smc91x_init(&board_smc91x_data);
 132 }
 133
 134 #else
 135
 136 static inline void board_smc91x_init(void)
 137 {
 138 }
 139
 140 #endif
 141
 142 static struct omap_board_config_kernel sdp2430_config[] = {
 143         {OMAP_TAG_LCD, &sdp2430_lcd_config},
 144 };
 145
 146 static void __init omap_2430sdp_init_irq(void)
 147 {
 148         omap_board_config = sdp2430_config;
 149         omap_board_config_size = ARRAY_SIZE(sdp2430_config);
 150         omap2_init_common_hw(NULL, NULL);
 151         omap_init_irq();
 152         omap_gpio_init();
 153 }
 154
 155 static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
 156         .gpio_base      = OMAP_MAX_GPIO_LINES,
 157         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 158         .irq_end        = TWL4030_GPIO_IRQ_END,
 159 };
 160
 161 static struct twl4030_platform_data sdp2430_twldata = {
 162         .irq_base       = TWL4030_IRQ_BASE,
 163         .irq_end        = TWL4030_IRQ_END,
 164
 165         /* platform_data for children goes here */
 166         .gpio           = &sdp2430_gpio_data,
 167 };
 168
 169 static struct i2c_board_info __initdata sdp2430_i2c_boardinfo[] = {
 170         {
 171                 I2C_BOARD_INFO("twl4030", 0x48),
 172                 .flags = I2C_CLIENT_WAKE,
 173                 .irq = INT_24XX_SYS_NIRQ,
 174                 .platform_data = &sdp2430_twldata,
 175         },
 176 };
 177
 178 static int __init omap2430_i2c_init(void)
 179 {
 180         omap_register_i2c_bus(1, 400, NULL, 0);
 181         omap_register_i2c_bus(2, 2600, sdp2430_i2c_boardinfo,
 182                         ARRAY_SIZE(sdp2430_i2c_boardinfo));
 183         return 0;
 184 }
 185
 186 static struct twl4030_hsmmc_info mmc[] __initdata = {
 187         {
 188                 .mmc            = 1,
 189                 .wires          = 4,
 190                 .gpio_cd        = -EINVAL,
 191                 .gpio_wp        = -EINVAL,
 192                 .ext_clock      = 1,
 193         },
 194         {}      /* Terminator */
 195 };
 196
 197 static void __init omap_2430sdp_init(void)
 198 {
 199         int ret;
 200
 201         omap2430_i2c_init();
 202
 203         platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
 204         omap_serial_init();
 205         twl4030_mmc_init(mmc);
 206         usb_musb_init();
 207         board_smc91x_init();
 208
 209         /* Turn off secondary LCD backlight */
 210         ret = gpio_request(SECONDARY_LCD_GPIO, "Secondary LCD backlight");
 211         if (ret == 0)
 212                 gpio_direction_output(SECONDARY_LCD_GPIO, 0);
 213 }
 214
 215 static void __init omap_2430sdp_map_io(void)
 216 {
 217         omap2_set_globals_243x();
 218         omap2_map_common_io();
 219 }
 220
 221 MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
 222         /* Maintainer: Syed Khasim - Texas Instruments Inc */
 223         .phys_io        = 0x48000000,
 224         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 225         .boot_params    = 0x80000100,
 226         .map_io         = omap_2430sdp_map_io,
 227         .init_irq       = omap_2430sdp_init_irq,
 228         .init_machine   = omap_2430sdp_init,
 229         .timer          = &omap_timer,
 230 MACHINE_END