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_lcd_device = {
 129         .name           = "omap3beagle_lcd",
 130         .id             = -1,
 131 };
 132
 133 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 134         .ctrl_name      = "internal",
 135 };
 136
 137 static struct gpio_led gpio_leds[] = {
 138         {
 139                 .name                   = "beagleboard::usr0",
 140                 .default_trigger        = "heartbeat",
 141                 .gpio                   = 150,
 142         },
 143         {
 144                 .name                   = "beagleboard::usr1",
 145                 .default_trigger        = "mmc0",
 146                 .gpio                   = 149,
 147         },
 148 };
 149
 150 static struct gpio_led_platform_data gpio_led_info = {
 151         .leds           = gpio_leds,
 152         .num_leds       = ARRAY_SIZE(gpio_leds),
 153 };
 154
 155 static struct platform_device leds_gpio = {
 156         .name   = "leds-gpio",
 157         .id     = -1,
 158         .dev    = {
 159                 .platform_data  = &gpio_led_info,
 160         },
 161 };
 162
 163 static struct gpio_keys_button gpio_buttons[] = {
 164         {
 165                 .code                   = BTN_EXTRA,
 166                 .gpio                   = 7,
 167                 .desc                   = "user",
 168                 .wakeup                 = 1,
 169         },
 170 };
 171
 172 static struct gpio_keys_platform_data gpio_key_info = {
 173         .buttons        = gpio_buttons,
 174         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 175 };
 176
 177 static struct platform_device keys_gpio = {
 178         .name   = "gpio-keys",
 179         .id     = -1,
 180         .dev    = {
 181                 .platform_data  = &gpio_key_info,
 182         },
 183 };
 184
 185 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 186         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 187         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 188 };
 189
 190 static struct platform_device *omap3_beagle_devices[] __initdata = {
 191         &omap3_beagle_lcd_device,
 192         &leds_gpio,
 193         &keys_gpio,
 194 };
 195
 196 static void __init omap3beagle_flash_init(void)
 197 {
 198         u8 cs = 0;
 199         u8 nandcs = GPMC_CS_NUM + 1;
 200
 201         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 202
 203         /* find out the chip-select on which NAND exists */
 204         while (cs < GPMC_CS_NUM) {
 205                 u32 ret = 0;
 206                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 207
 208                 if ((ret & 0xC00) == 0x800) {
 209                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 210                         if (nandcs > GPMC_CS_NUM)
 211                                 nandcs = cs;
 212                 }
 213                 cs++;
 214         }
 215
 216         if (nandcs > GPMC_CS_NUM) {
 217                 printk(KERN_INFO "NAND: Unable to find configuration "
 218                                  "in GPMC\n ");
 219                 return;
 220         }
 221
 222         if (nandcs < GPMC_CS_NUM) {
 223                 omap3beagle_nand_data.cs = nandcs;
 224                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 225                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 226                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 227
 228                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 229                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 230                         printk(KERN_ERR "Unable to register NAND device\n");
 231         }
 232 }
 233
 234 static void __init omap3_beagle_init(void)
 235 {
 236         omap3_beagle_i2c_init();
 237         platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices));
 238         omap_board_config = omap3_beagle_config;
 239         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 240         omap_serial_init();
 241         hsmmc_init();
 242         usb_musb_init();
 243         usb_ehci_init();
 244         omap3beagle_flash_init();
 245 }
 246
 247 static void __init omap3_beagle_map_io(void)
 248 {
 249         omap2_set_globals_343x();
 250         omap2_map_common_io();
 251 }
 252
 253 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 254         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 255         .phys_io        = 0x48000000,
 256         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 257         .boot_params    = 0x80000100,
 258         .map_io         = omap3_beagle_map_io,
 259         .init_irq       = omap3_beagle_init_irq,
 260         .init_machine   = omap3_beagle_init,
 261         .timer          = &omap_timer,
 262 MACHINE_END