arch/arm/mach-omap2/board-omap3beagle.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3beagle.c
   3  *
   4  * Copyright (C) 2008 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-3430sdp.c
   7  *
   8  * Initial code: Syed Mohammed Khasim
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/err.h>
  20 #include <linux/clk.h>
  21 #include <linux/io.h>
  22 #include <linux/leds.h>
  23 #include <linux/gpio.h>
  24 #include <linux/input.h>
  25 #include <linux/gpio_keys.h>
  26
  27 #include <linux/mtd/mtd.h>
  28 #include <linux/mtd/partitions.h>
  29 #include <linux/mtd/nand.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 #include <asm/mach/flash.h>
  36
  37 #include <mach/board.h>
  38 #include <mach/usb-musb.h>
  39 #include <mach/usb-ehci.h>
  40 #include <mach/hsmmc.h>
  41 #include <mach/common.h>
  42 #include <mach/gpmc.h>
  43 #include <mach/nand.h>
  44
  45 #define GPMC_CS0_BASE  0x60
  46 #define GPMC_CS_SIZE   0x30
  47
  48 static struct mtd_partition omap3beagle_nand_partitions[] = {
  49         /* All the partition sizes are listed in terms of NAND block size */
  50         {
  51                 .name           = "X-Loader",
  52                 .offset         = 0,
  53                 .size           = 4*(64 * 2048),
  54                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  55         },
  56         {
  57                 .name           = "U-Boot",
  58                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  59                 .size           = 15*(64 * 2048),
  60                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  61         },
  62         {
  63                 .name           = "U-Boot Env",
  64                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  65                 .size           = 1*(64 * 2048),
  66         },
  67         {
  68                 .name           = "Kernel",
  69                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  70                 .size           = 32*(64 * 2048),
  71         },
  72         {
  73                 .name           = "File System",
  74                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  75                 .size           = MTDPART_SIZ_FULL,
  76         },
  77 };
  78
  79 static struct omap_nand_platform_data omap3beagle_nand_data = {
  80         .parts          = omap3beagle_nand_partitions,
  81         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  82         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  83         .nand_setup     = NULL,
  84         .dev_ready      = NULL,
  85 };
  86
  87 static struct resource omap3beagle_nand_resource = {
  88         .flags          = IORESOURCE_MEM,
  89 };
  90
  91 static struct platform_device omap3beagle_nand_device = {
  92         .name           = "omap2-nand",
  93         .id             = -1,
  94         .dev            = {
  95                 .platform_data  = &omap3beagle_nand_data,
  96         },
  97         .num_resources  = 1,
  98         .resource       = &omap3beagle_nand_resource,
  99 };
 100
 101 #include "sdram-micron-mt46h32m32lf-6.h"
 102
 103 static struct omap_uart_config omap3_beagle_uart_config __initdata = {
 104         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 105 };
 106
 107 static int __init omap3_beagle_i2c_init(void)
 108 {
 109         omap_register_i2c_bus(1, 2600, NULL, 0);
 110 #ifdef CONFIG_I2C2_OMAP_BEAGLE
 111         omap_register_i2c_bus(2, 400, NULL, 0);
 112 #endif
 113         omap_register_i2c_bus(3, 400, NULL, 0);
 114         return 0;
 115 }
 116
 117 static void __init omap3_beagle_init_irq(void)
 118 {
 119         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 120         omap_init_irq();
 121         omap_gpio_init();
 122 }
 123
 124 static struct omap_mmc_config omap3beagle_mmc_config __initdata = {
 125         .mmc [0] = {
 126                 .enabled        = 1,
 127                 .wire4          = 1,
 128         },
 129 };
 130
 131 static struct platform_device omap3_beagle_twl4030rtc_device = {
 132         .name           = "twl4030_rtc",
 133         .id             = -1,
 134 };
 135
 136 static struct platform_device omap3_beagle_lcd_device = {
 137         .name           = "omap3beagle_lcd",
 138         .id             = -1,
 139 };
 140
 141 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 142         .ctrl_name      = "internal",
 143 };
 144
 145 static struct gpio_led gpio_leds[] = {
 146         {
 147                 .name                   = "beagleboard::usr0",
 148                 .default_trigger        = "heartbeat",
 149                 .gpio                   = 150,
 150         },
 151         {
 152                 .name                   = "beagleboard::usr1",
 153                 .default_trigger        = "mmc0",
 154                 .gpio                   = 149,
 155         },
 156 };
 157
 158 static struct gpio_led_platform_data gpio_led_info = {
 159         .leds           = gpio_leds,
 160         .num_leds       = ARRAY_SIZE(gpio_leds),
 161 };
 162
 163 static struct platform_device leds_gpio = {
 164         .name   = "leds-gpio",
 165         .id     = -1,
 166         .dev    = {
 167                 .platform_data  = &gpio_led_info,
 168         },
 169 };
 170
 171 static struct gpio_keys_button gpio_buttons[] = {
 172         {
 173                 .code                   = BTN_EXTRA,
 174                 .gpio                   = 7,
 175                 .desc                   = "user",
 176                 .wakeup                 = 1,
 177         },
 178 };
 179
 180 static struct gpio_keys_platform_data gpio_key_info = {
 181         .buttons        = gpio_buttons,
 182         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 183 };
 184
 185 static struct platform_device keys_gpio = {
 186         .name   = "gpio-keys",
 187         .id     = -1,
 188         .dev    = {
 189                 .platform_data  = &gpio_key_info,
 190         },
 191 };
 192
 193 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 194         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 195         { OMAP_TAG_MMC,         &omap3beagle_mmc_config },
 196         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 197 };
 198
 199 static struct platform_device *omap3_beagle_devices[] __initdata = {
 200         &omap3_beagle_lcd_device,
 201 #ifdef CONFIG_RTC_DRV_TWL4030
 202         &omap3_beagle_twl4030rtc_device,
 203 #endif
 204         &leds_gpio,
 205         &keys_gpio,
 206 };
 207
 208 void __init omap3beagle_flash_init(void)
 209 {
 210         u8 cs = 0;
 211         u8 nandcs = GPMC_CS_NUM + 1;
 212
 213         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 214
 215         /* find out the chip-select on which NAND exists */
 216         while (cs < GPMC_CS_NUM) {
 217                 u32 ret = 0;
 218                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 219
 220                 if ((ret & 0xC00) == 0x800) {
 221                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 222                         if (nandcs > GPMC_CS_NUM)
 223                                 nandcs = cs;
 224                 }
 225                 cs++;
 226         }
 227
 228         if (nandcs > GPMC_CS_NUM) {
 229                 printk(KERN_INFO "NAND: Unable to find configuration "
 230                                  "in GPMC\n ");
 231                 return;
 232         }
 233
 234         if (nandcs < GPMC_CS_NUM) {
 235                 omap3beagle_nand_data.cs = nandcs;
 236                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 237                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 238                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 239
 240                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 241                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 242                         printk(KERN_ERR "Unable to register NAND device\n");
 243         }
 244 }
 245
 246 static void __init omap3_beagle_init(void)
 247 {
 248         platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices));
 249         omap_board_config = omap3_beagle_config;
 250         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 251         omap_serial_init();
 252         hsmmc_init();
 253         usb_musb_init();
 254         usb_ehci_init();
 255         omap3beagle_flash_init();
 256 }
 257
 258 arch_initcall(omap3_beagle_i2c_init);
 259
 260 static void __init omap3_beagle_map_io(void)
 261 {
 262         omap2_set_globals_343x();
 263         omap2_map_common_io();
 264 }
 265
 266 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 267         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 268         .phys_io        = 0x48000000,
 269         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 270         .boot_params    = 0x80000100,
 271         .map_io         = omap3_beagle_map_io,
 272         .init_irq       = omap3_beagle_init_irq,
 273         .init_machine   = omap3_beagle_init,
 274         .timer          = &omap_timer,
 275 MACHINE_END