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/mtd/physmap.h>
  22 #include <linux/mmc/host.h>
  23 #include <linux/delay.h>
  24 #include <linux/i2c/twl.h>
  25 #include <linux/regulator/machine.h>
  26 #include <linux/err.h>
  27 #include <linux/clk.h>
  28 #include <linux/io.h>
  29 #include <linux/gpio.h>
  30
  31 #include <mach/hardware.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include "common.h"
  37 #include <plat/gpmc.h>
  38 #include <plat/usb.h>
  39 #include <plat/gpmc-smc91x.h>
  40
  41 #include <video/omapdss.h>
  42 #include <video/omap-panel-generic-dpi.h>
  43
  44 #include "mux.h"
  45 #include "hsmmc.h"
  46 #include "common-board-devices.h"
  47
  48 #define SDP2430_CS0_BASE        0x04000000
  49 #define SECONDARY_LCD_GPIO              147
  50
  51 static struct mtd_partition sdp2430_partitions[] = {
  52         /* bootloader (U-Boot, etc) in first sector */
  53         {
  54                 .name           = "bootloader",
  55                 .offset         = 0,
  56                 .size           = SZ_256K,
  57                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  58          },
  59         /* bootloader params in the next sector */
  60         {
  61                 .name           = "params",
  62                 .offset         = MTDPART_OFS_APPEND,
  63                 .size           = SZ_128K,
  64                 .mask_flags     = 0,
  65          },
  66         /* kernel */
  67         {
  68                 .name           = "kernel",
  69                 .offset         = MTDPART_OFS_APPEND,
  70                 .size           = SZ_2M,
  71                 .mask_flags     = 0
  72         },
  73         /* file system */
  74         {
  75                 .name           = "filesystem",
  76                 .offset         = MTDPART_OFS_APPEND,
  77                 .size           = MTDPART_SIZ_FULL,
  78                 .mask_flags     = 0
  79         }
  80 };
  81
  82 static struct physmap_flash_data sdp2430_flash_data = {
  83         .width          = 2,
  84         .parts          = sdp2430_partitions,
  85         .nr_parts       = ARRAY_SIZE(sdp2430_partitions),
  86 };
  87
  88 static struct resource sdp2430_flash_resource = {
  89         .start          = SDP2430_CS0_BASE,
  90         .end            = SDP2430_CS0_BASE + SZ_64M - 1,
  91         .flags          = IORESOURCE_MEM,
  92 };
  93
  94 static struct platform_device sdp2430_flash_device = {
  95         .name           = "physmap-flash",
  96         .id             = 0,
  97         .dev = {
  98                 .platform_data  = &sdp2430_flash_data,
  99         },
 100         .num_resources  = 1,
 101         .resource       = &sdp2430_flash_resource,
 102 };
 103
 104 static struct platform_device *sdp2430_devices[] __initdata = {
 105         &sdp2430_flash_device,
 106 };
 107
 108 /* LCD */
 109 #define SDP2430_LCD_PANEL_BACKLIGHT_GPIO        91
 110 #define SDP2430_LCD_PANEL_ENABLE_GPIO           154
 111
 112 static int sdp2430_panel_enable_lcd(struct omap_dss_device *dssdev)
 113 {
 114         gpio_direction_output(SDP2430_LCD_PANEL_ENABLE_GPIO, 1);
 115         gpio_direction_output(SDP2430_LCD_PANEL_BACKLIGHT_GPIO, 1);
 116
 117         return 0;
 118 }
 119
 120 static void sdp2430_panel_disable_lcd(struct omap_dss_device *dssdev)
 121 {
 122         gpio_direction_output(SDP2430_LCD_PANEL_ENABLE_GPIO, 0);
 123         gpio_direction_output(SDP2430_LCD_PANEL_BACKLIGHT_GPIO, 0);
 124 }
 125
 126 static struct panel_generic_dpi_data sdp2430_panel_data = {
 127         .name                   = "nec_nl2432dr22-11b",
 128         .platform_enable        = sdp2430_panel_enable_lcd,
 129         .platform_disable       = sdp2430_panel_disable_lcd,
 130 };
 131
 132 static struct omap_dss_device sdp2430_lcd_device = {
 133         .name                   = "lcd",
 134         .driver_name            = "generic_dpi_panel",
 135         .type                   = OMAP_DISPLAY_TYPE_DPI,
 136         .phy.dpi.data_lines     = 16,
 137         .data                   = &sdp2430_panel_data,
 138 };
 139
 140 static struct omap_dss_device *sdp2430_dss_devices[] = {
 141         &sdp2430_lcd_device,
 142 };
 143
 144 static struct omap_dss_board_info sdp2430_dss_data = {
 145         .num_devices    = ARRAY_SIZE(sdp2430_dss_devices),
 146         .devices        = sdp2430_dss_devices,
 147         .default_device = &sdp2430_lcd_device,
 148 };
 149
 150 static void __init sdp2430_display_init(void)
 151 {
 152         int r;
 153
 154         static struct gpio gpios[] __initdata = {
 155                 { SDP2430_LCD_PANEL_ENABLE_GPIO, GPIOF_OUT_INIT_LOW,
 156                         "LCD reset" },
 157                 { SDP2430_LCD_PANEL_BACKLIGHT_GPIO, GPIOF_OUT_INIT_LOW,
 158                         "LCD Backlight" },
 159         };
 160
 161         r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
 162         if (r) {
 163                 pr_err("Cannot request LCD GPIOs, error %d\n", r);
 164                 return;
 165         }
 166
 167         omap_display_init(&sdp2430_dss_data);
 168 }
 169
 170 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91x_MODULE)
 171
 172 static struct omap_smc91x_platform_data board_smc91x_data = {
 173         .cs             = 5,
 174         .gpio_irq       = 149,
 175         .flags          = GPMC_MUX_ADD_DATA | GPMC_TIMINGS_SMC91C96 |
 176                                 IORESOURCE_IRQ_LOWLEVEL,
 177
 178 };
 179
 180 static void __init board_smc91x_init(void)
 181 {
 182         omap_mux_init_gpio(149, OMAP_PIN_INPUT);
 183         gpmc_smc91x_init(&board_smc91x_data);
 184 }
 185
 186 #else
 187
 188 static inline void board_smc91x_init(void)
 189 {
 190 }
 191
 192 #endif
 193
 194 static struct regulator_consumer_supply sdp2430_vmmc1_supplies[] = {
 195         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
 196 };
 197
 198 /* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
 199 static struct regulator_init_data sdp2430_vmmc1 = {
 200         .constraints = {
 201                 .min_uV                 = 1850000,
 202                 .max_uV                 = 3150000,
 203                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 204                                         | REGULATOR_MODE_STANDBY,
 205                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 206                                         | REGULATOR_CHANGE_MODE
 207                                         | REGULATOR_CHANGE_STATUS,
 208         },
 209         .num_consumer_supplies  = ARRAY_SIZE(sdp2430_vmmc1_supplies),
 210         .consumer_supplies      = &sdp2430_vmmc1_supplies[0],
 211 };
 212
 213 static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
 214 };
 215
 216 static struct twl4030_platform_data sdp2430_twldata = {
 217         /* platform_data for children goes here */
 218         .gpio           = &sdp2430_gpio_data,
 219         .vmmc1          = &sdp2430_vmmc1,
 220 };
 221
 222 static struct i2c_board_info __initdata sdp2430_i2c1_boardinfo[] = {
 223         {
 224                 I2C_BOARD_INFO("isp1301_omap", 0x2D),
 225                 .flags = I2C_CLIENT_WAKE,
 226         },
 227 };
 228
 229 static int __init omap2430_i2c_init(void)
 230 {
 231         sdp2430_i2c1_boardinfo[0].irq = gpio_to_irq(78);
 232         omap_register_i2c_bus(1, 100, sdp2430_i2c1_boardinfo,
 233                         ARRAY_SIZE(sdp2430_i2c1_boardinfo));
 234         omap_pmic_init(2, 100, "twl4030", 7 + OMAP_INTC_START,
 235                         &sdp2430_twldata);
 236         return 0;
 237 }
 238
 239 static struct omap2_hsmmc_info mmc[] __initdata = {
 240         {
 241                 .mmc            = 1,
 242                 .caps           = MMC_CAP_4_BIT_DATA,
 243                 .gpio_cd        = -EINVAL,
 244                 .gpio_wp        = -EINVAL,
 245                 .ext_clock      = 1,
 246         },
 247         {}      /* Terminator */
 248 };
 249
 250 #ifdef CONFIG_OMAP_MUX
 251 static struct omap_board_mux board_mux[] __initdata = {
 252         { .reg_offset = OMAP_MUX_TERMINATOR },
 253 };
 254 #endif
 255
 256 static void __init omap_2430sdp_init(void)
 257 {
 258         omap2430_mux_init(board_mux, OMAP_PACKAGE_ZAC);
 259
 260         omap2430_i2c_init();
 261
 262         platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
 263         omap_serial_init();
 264         omap_sdrc_init(NULL, NULL);
 265         omap_hsmmc_init(mmc);
 266
 267         omap_mux_init_signal("usb0hs_stp", OMAP_PULL_ENA | OMAP_PULL_UP);
 268         usb_musb_init(NULL);
 269
 270         board_smc91x_init();
 271
 272         /* Turn off secondary LCD backlight */
 273         gpio_request_one(SECONDARY_LCD_GPIO, GPIOF_OUT_INIT_LOW,
 274                          "Secondary LCD backlight");
 275
 276         sdp2430_display_init();
 277 }
 278
 279 MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
 280         /* Maintainer: Syed Khasim - Texas Instruments Inc */
 281         .atag_offset    = 0x100,
 282         .reserve        = omap_reserve,
 283         .map_io         = omap243x_map_io,
 284         .init_early     = omap2430_init_early,
 285         .init_irq       = omap2_init_irq,
 286         .handle_irq     = omap2_intc_handle_irq,
 287         .init_machine   = omap_2430sdp_init,
 288         .init_late      = omap2430_init_late,
 289         .timer          = &omap2_timer,
 290         .restart        = omap_prcm_restart,
 291 MACHINE_END