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 <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include "common.h"
  36 #include "gpmc.h"
  37 #include "gpmc-smc91x.h"
  38
  39 #include <video/omapdss.h>
  40 #include <video/omap-panel-generic-dpi.h>
  41
  42 #include "mux.h"
  43 #include "hsmmc.h"
  44 #include "common-board-devices.h"
  45
  46 #define SDP2430_CS0_BASE        0x04000000
  47 #define SECONDARY_LCD_GPIO              147
  48
  49 static struct mtd_partition sdp2430_partitions[] = {
  50         /* bootloader (U-Boot, etc) in first sector */
  51         {
  52                 .name           = "bootloader",
  53                 .offset         = 0,
  54                 .size           = SZ_256K,
  55                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  56          },
  57         /* bootloader params in the next sector */
  58         {
  59                 .name           = "params",
  60                 .offset         = MTDPART_OFS_APPEND,
  61                 .size           = SZ_128K,
  62                 .mask_flags     = 0,
  63          },
  64         /* kernel */
  65         {
  66                 .name           = "kernel",
  67                 .offset         = MTDPART_OFS_APPEND,
  68                 .size           = SZ_2M,
  69                 .mask_flags     = 0
  70         },
  71         /* file system */
  72         {
  73                 .name           = "filesystem",
  74                 .offset         = MTDPART_OFS_APPEND,
  75                 .size           = MTDPART_SIZ_FULL,
  76                 .mask_flags     = 0
  77         }
  78 };
  79
  80 static struct physmap_flash_data sdp2430_flash_data = {
  81         .width          = 2,
  82         .parts          = sdp2430_partitions,
  83         .nr_parts       = ARRAY_SIZE(sdp2430_partitions),
  84 };
  85
  86 static struct resource sdp2430_flash_resource = {
  87         .start          = SDP2430_CS0_BASE,
  88         .end            = SDP2430_CS0_BASE + SZ_64M - 1,
  89         .flags          = IORESOURCE_MEM,
  90 };
  91
  92 static struct platform_device sdp2430_flash_device = {
  93         .name           = "physmap-flash",
  94         .id             = 0,
  95         .dev = {
  96                 .platform_data  = &sdp2430_flash_data,
  97         },
  98         .num_resources  = 1,
  99         .resource       = &sdp2430_flash_resource,
 100 };
 101
 102 static struct platform_device *sdp2430_devices[] __initdata = {
 103         &sdp2430_flash_device,
 104 };
 105
 106 /* LCD */
 107 #define SDP2430_LCD_PANEL_BACKLIGHT_GPIO        91
 108 #define SDP2430_LCD_PANEL_ENABLE_GPIO           154
 109
 110 static int sdp2430_panel_enable_lcd(struct omap_dss_device *dssdev)
 111 {
 112         gpio_direction_output(SDP2430_LCD_PANEL_ENABLE_GPIO, 1);
 113         gpio_direction_output(SDP2430_LCD_PANEL_BACKLIGHT_GPIO, 1);
 114
 115         return 0;
 116 }
 117
 118 static void sdp2430_panel_disable_lcd(struct omap_dss_device *dssdev)
 119 {
 120         gpio_direction_output(SDP2430_LCD_PANEL_ENABLE_GPIO, 0);
 121         gpio_direction_output(SDP2430_LCD_PANEL_BACKLIGHT_GPIO, 0);
 122 }
 123
 124 static struct panel_generic_dpi_data sdp2430_panel_data = {
 125         .name                   = "nec_nl2432dr22-11b",
 126         .platform_enable        = sdp2430_panel_enable_lcd,
 127         .platform_disable       = sdp2430_panel_disable_lcd,
 128 };
 129
 130 static struct omap_dss_device sdp2430_lcd_device = {
 131         .name                   = "lcd",
 132         .driver_name            = "generic_dpi_panel",
 133         .type                   = OMAP_DISPLAY_TYPE_DPI,
 134         .phy.dpi.data_lines     = 16,
 135         .data                   = &sdp2430_panel_data,
 136 };
 137
 138 static struct omap_dss_device *sdp2430_dss_devices[] = {
 139         &sdp2430_lcd_device,
 140 };
 141
 142 static struct omap_dss_board_info sdp2430_dss_data = {
 143         .num_devices    = ARRAY_SIZE(sdp2430_dss_devices),
 144         .devices        = sdp2430_dss_devices,
 145         .default_device = &sdp2430_lcd_device,
 146 };
 147
 148 static void __init sdp2430_display_init(void)
 149 {
 150         int r;
 151
 152         static struct gpio gpios[] __initdata = {
 153                 { SDP2430_LCD_PANEL_ENABLE_GPIO, GPIOF_OUT_INIT_LOW,
 154                         "LCD reset" },
 155                 { SDP2430_LCD_PANEL_BACKLIGHT_GPIO, GPIOF_OUT_INIT_LOW,
 156                         "LCD Backlight" },
 157         };
 158
 159         r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
 160         if (r) {
 161                 pr_err("Cannot request LCD GPIOs, error %d\n", r);
 162                 return;
 163         }
 164
 165         omap_display_init(&sdp2430_dss_data);
 166 }
 167
 168 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91x_MODULE)
 169
 170 static struct omap_smc91x_platform_data board_smc91x_data = {
 171         .cs             = 5,
 172         .gpio_irq       = 149,
 173         .flags          = GPMC_MUX_ADD_DATA | GPMC_TIMINGS_SMC91C96 |
 174                                 IORESOURCE_IRQ_LOWLEVEL,
 175
 176 };
 177
 178 static void __init board_smc91x_init(void)
 179 {
 180         omap_mux_init_gpio(149, OMAP_PIN_INPUT);
 181         gpmc_smc91x_init(&board_smc91x_data);
 182 }
 183
 184 #else
 185
 186 static inline void board_smc91x_init(void)
 187 {
 188 }
 189
 190 #endif
 191
 192 static struct regulator_consumer_supply sdp2430_vmmc1_supplies[] = {
 193         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
 194 };
 195
 196 /* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
 197 static struct regulator_init_data sdp2430_vmmc1 = {
 198         .constraints = {
 199                 .min_uV                 = 1850000,
 200                 .max_uV                 = 3150000,
 201                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 202                                         | REGULATOR_MODE_STANDBY,
 203                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 204                                         | REGULATOR_CHANGE_MODE
 205                                         | REGULATOR_CHANGE_STATUS,
 206         },
 207         .num_consumer_supplies  = ARRAY_SIZE(sdp2430_vmmc1_supplies),
 208         .consumer_supplies      = &sdp2430_vmmc1_supplies[0],
 209 };
 210
 211 static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
 212 };
 213
 214 static struct twl4030_platform_data sdp2430_twldata = {
 215         /* platform_data for children goes here */
 216         .gpio           = &sdp2430_gpio_data,
 217         .vmmc1          = &sdp2430_vmmc1,
 218 };
 219
 220 static struct i2c_board_info __initdata sdp2430_i2c1_boardinfo[] = {
 221         {
 222                 I2C_BOARD_INFO("isp1301_omap", 0x2D),
 223                 .flags = I2C_CLIENT_WAKE,
 224         },
 225 };
 226
 227 static int __init omap2430_i2c_init(void)
 228 {
 229         sdp2430_i2c1_boardinfo[0].irq = gpio_to_irq(78);
 230         omap_register_i2c_bus(1, 100, sdp2430_i2c1_boardinfo,
 231                         ARRAY_SIZE(sdp2430_i2c1_boardinfo));
 232         omap_pmic_init(2, 100, "twl4030", 7 + OMAP_INTC_START,
 233                         &sdp2430_twldata);
 234         return 0;
 235 }
 236
 237 static struct omap2_hsmmc_info mmc[] __initdata = {
 238         {
 239                 .mmc            = 1,
 240                 .caps           = MMC_CAP_4_BIT_DATA,
 241                 .gpio_cd        = -EINVAL,
 242                 .gpio_wp        = -EINVAL,
 243                 .ext_clock      = 1,
 244         },
 245         {}      /* Terminator */
 246 };
 247
 248 #ifdef CONFIG_OMAP_MUX
 249 static struct omap_board_mux board_mux[] __initdata = {
 250         { .reg_offset = OMAP_MUX_TERMINATOR },
 251 };
 252 #endif
 253
 254 static void __init omap_2430sdp_init(void)
 255 {
 256         omap2430_mux_init(board_mux, OMAP_PACKAGE_ZAC);
 257
 258         omap2430_i2c_init();
 259
 260         platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
 261         omap_serial_init();
 262         omap_sdrc_init(NULL, NULL);
 263         omap_hsmmc_init(mmc);
 264
 265         omap_mux_init_signal("usb0hs_stp", OMAP_PULL_ENA | OMAP_PULL_UP);
 266         usb_musb_init(NULL);
 267
 268         board_smc91x_init();
 269
 270         /* Turn off secondary LCD backlight */
 271         gpio_request_one(SECONDARY_LCD_GPIO, GPIOF_OUT_INIT_LOW,
 272                          "Secondary LCD backlight");
 273
 274         sdp2430_display_init();
 275 }
 276
 277 MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
 278         /* Maintainer: Syed Khasim - Texas Instruments Inc */
 279         .atag_offset    = 0x100,
 280         .reserve        = omap_reserve,
 281         .map_io         = omap243x_map_io,
 282         .init_early     = omap2430_init_early,
 283         .init_irq       = omap2_init_irq,
 284         .handle_irq     = omap2_intc_handle_irq,
 285         .init_machine   = omap_2430sdp_init,
 286         .init_late      = omap2430_init_late,
 287         .timer          = &omap2_timer,
 288         .restart        = omap2xxx_restart,
 289 MACHINE_END