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
  46 #define GPMC_CS0_BASE  0x60
  47 #define GPMC_CS_SIZE   0x30
  48
  49 #define NAND_BLOCK_SIZE         SZ_128K
  50
  51 static struct mtd_partition omap3beagle_nand_partitions[] = {
  52         /* All the partition sizes are listed in terms of NAND block size */
  53         {
  54                 .name           = "X-Loader",
  55                 .offset         = 0,
  56                 .size           = 4 * NAND_BLOCK_SIZE,
  57                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  58         },
  59         {
  60                 .name           = "U-Boot",
  61                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  62                 .size           = 15 * NAND_BLOCK_SIZE,
  63                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  64         },
  65         {
  66                 .name           = "U-Boot Env",
  67                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  68                 .size           = 1 * NAND_BLOCK_SIZE,
  69         },
  70         {
  71                 .name           = "Kernel",
  72                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  73                 .size           = 32 * NAND_BLOCK_SIZE,
  74         },
  75         {
  76                 .name           = "File System",
  77                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  78                 .size           = MTDPART_SIZ_FULL,
  79         },
  80 };
  81
  82 static struct omap_nand_platform_data omap3beagle_nand_data = {
  83         .options        = NAND_BUSWIDTH_16,
  84         .parts          = omap3beagle_nand_partitions,
  85         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  86         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  87         .nand_setup     = NULL,
  88         .dev_ready      = NULL,
  89 };
  90
  91 static struct resource omap3beagle_nand_resource = {
  92         .flags          = IORESOURCE_MEM,
  93 };
  94
  95 static struct platform_device omap3beagle_nand_device = {
  96         .name           = "omap2-nand",
  97         .id             = -1,
  98         .dev            = {
  99                 .platform_data  = &omap3beagle_nand_data,
 100         },
 101         .num_resources  = 1,
 102         .resource       = &omap3beagle_nand_resource,
 103 };
 104
 105 #include "sdram-micron-mt46h32m32lf-6.h"
 106
 107 static struct omap_uart_config omap3_beagle_uart_config __initdata = {
 108         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 109 };
 110
 111 static int __init omap3_beagle_i2c_init(void)
 112 {
 113         omap_register_i2c_bus(1, 2600, NULL, 0);
 114 #ifdef CONFIG_I2C2_OMAP_BEAGLE
 115         omap_register_i2c_bus(2, 400, NULL, 0);
 116 #endif
 117         omap_register_i2c_bus(3, 400, NULL, 0);
 118         return 0;
 119 }
 120
 121 static void __init omap3_beagle_init_irq(void)
 122 {
 123         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 124         omap_init_irq();
 125         omap_gpio_init();
 126 }
 127
 128 static struct platform_device omap3_beagle_twl4030rtc_device = {
 129         .name           = "twl4030_rtc",
 130         .id             = -1,
 131 };
 132
 133 static struct platform_device omap3_beagle_lcd_device = {
 134         .name           = "omap3beagle_lcd",
 135         .id             = -1,
 136 };
 137
 138 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 139         .ctrl_name      = "internal",
 140 };
 141
 142 static struct gpio_led gpio_leds[] = {
 143         {
 144                 .name                   = "beagleboard::usr0",
 145                 .default_trigger        = "heartbeat",
 146                 .gpio                   = 150,
 147         },
 148         {
 149                 .name                   = "beagleboard::usr1",
 150                 .default_trigger        = "mmc0",
 151                 .gpio                   = 149,
 152         },
 153 };
 154
 155 static struct gpio_led_platform_data gpio_led_info = {
 156         .leds           = gpio_leds,
 157         .num_leds       = ARRAY_SIZE(gpio_leds),
 158 };
 159
 160 static struct platform_device leds_gpio = {
 161         .name   = "leds-gpio",
 162         .id     = -1,
 163         .dev    = {
 164                 .platform_data  = &gpio_led_info,
 165         },
 166 };
 167
 168 static struct gpio_keys_button gpio_buttons[] = {
 169         {
 170                 .code                   = BTN_EXTRA,
 171                 .gpio                   = 7,
 172                 .desc                   = "user",
 173                 .wakeup                 = 1,
 174         },
 175 };
 176
 177 static struct gpio_keys_platform_data gpio_key_info = {
 178         .buttons        = gpio_buttons,
 179         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 180 };
 181
 182 static struct platform_device keys_gpio = {
 183         .name   = "gpio-keys",
 184         .id     = -1,
 185         .dev    = {
 186                 .platform_data  = &gpio_key_info,
 187         },
 188 };
 189
 190 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 191         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 192         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 193 };
 194
 195 static struct platform_device *omap3_beagle_devices[] __initdata = {
 196         &omap3_beagle_lcd_device,
 197 #ifdef CONFIG_RTC_DRV_TWL4030
 198         &omap3_beagle_twl4030rtc_device,
 199 #endif
 200         &leds_gpio,
 201         &keys_gpio,
 202 };
 203
 204 static void __init omap3beagle_flash_init(void)
 205 {
 206         u8 cs = 0;
 207         u8 nandcs = GPMC_CS_NUM + 1;
 208
 209         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 210
 211         /* find out the chip-select on which NAND exists */
 212         while (cs < GPMC_CS_NUM) {
 213                 u32 ret = 0;
 214                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 215
 216                 if ((ret & 0xC00) == 0x800) {
 217                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 218                         if (nandcs > GPMC_CS_NUM)
 219                                 nandcs = cs;
 220                 }
 221                 cs++;
 222         }
 223
 224         if (nandcs > GPMC_CS_NUM) {
 225                 printk(KERN_INFO "NAND: Unable to find configuration "
 226                                  "in GPMC\n ");
 227                 return;
 228         }
 229
 230         if (nandcs < GPMC_CS_NUM) {
 231                 omap3beagle_nand_data.cs = nandcs;
 232                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 233                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 234                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 235
 236                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 237                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 238                         printk(KERN_ERR "Unable to register NAND device\n");
 239         }
 240 }
 241
 242 static void __init omap3_beagle_init(void)
 243 {
 244         omap3_beagle_i2c_init();
 245         platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices));
 246         omap_board_config = omap3_beagle_config;
 247         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 248         omap_serial_init();
 249         hsmmc_init();
 250         usb_musb_init();
 251         usb_ehci_init();
 252         omap3beagle_flash_init();
 253 }
 254
 255 static void __init omap3_beagle_map_io(void)
 256 {
 257         omap2_set_globals_343x();
 258         omap2_map_common_io();
 259 }
 260
 261 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 262         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 263         .phys_io        = 0x48000000,
 264         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 265         .boot_params    = 0x80000100,
 266         .map_io         = omap3_beagle_map_io,
 267         .init_irq       = omap3_beagle_init_irq,
 268         .init_machine   = omap3_beagle_init,
 269         .timer          = &omap_timer,
 270 MACHINE_END