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/i2c/twl4030.h>
  28
  29 #include <linux/mtd/mtd.h>
  30 #include <linux/mtd/partitions.h>
  31 #include <linux/mtd/nand.h>
  32
  33 #include <mach/hardware.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37 #include <asm/mach/flash.h>
  38
  39 #include <mach/board.h>
  40 #include <mach/usb-musb.h>
  41 #include <mach/usb-ehci.h>
  42 #include <mach/hsmmc.h>
  43 #include <mach/common.h>
  44 #include <mach/gpmc.h>
  45 #include <mach/nand.h>
  46
  47
  48 #define GPMC_CS0_BASE  0x60
  49 #define GPMC_CS_SIZE   0x30
  50
  51 #define NAND_BLOCK_SIZE         SZ_128K
  52
  53 static struct mtd_partition omap3beagle_nand_partitions[] = {
  54         /* All the partition sizes are listed in terms of NAND block size */
  55         {
  56                 .name           = "X-Loader",
  57                 .offset         = 0,
  58                 .size           = 4 * NAND_BLOCK_SIZE,
  59                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  60         },
  61         {
  62                 .name           = "U-Boot",
  63                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  64                 .size           = 15 * NAND_BLOCK_SIZE,
  65                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  66         },
  67         {
  68                 .name           = "U-Boot Env",
  69                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  70                 .size           = 1 * NAND_BLOCK_SIZE,
  71         },
  72         {
  73                 .name           = "Kernel",
  74                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  75                 .size           = 32 * NAND_BLOCK_SIZE,
  76         },
  77         {
  78                 .name           = "File System",
  79                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  80                 .size           = MTDPART_SIZ_FULL,
  81         },
  82 };
  83
  84 static struct omap_nand_platform_data omap3beagle_nand_data = {
  85         .options        = NAND_BUSWIDTH_16,
  86         .parts          = omap3beagle_nand_partitions,
  87         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  88         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  89         .nand_setup     = NULL,
  90         .dev_ready      = NULL,
  91 };
  92
  93 static struct resource omap3beagle_nand_resource = {
  94         .flags          = IORESOURCE_MEM,
  95 };
  96
  97 static struct platform_device omap3beagle_nand_device = {
  98         .name           = "omap2-nand",
  99         .id             = -1,
 100         .dev            = {
 101                 .platform_data  = &omap3beagle_nand_data,
 102         },
 103         .num_resources  = 1,
 104         .resource       = &omap3beagle_nand_resource,
 105 };
 106
 107 #include "sdram-micron-mt46h32m32lf-6.h"
 108
 109 static struct omap_uart_config omap3_beagle_uart_config __initdata = {
 110         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 111 };
 112
 113 static struct twl4030_platform_data beagle_twldata = {
 114         .irq_base       = TWL4030_IRQ_BASE,
 115         .irq_end        = TWL4030_IRQ_END,
 116 };
 117
 118 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 119         {
 120                 I2C_BOARD_INFO("twl4030", 0x48),
 121                 .flags = I2C_CLIENT_WAKE,
 122                 .irq = INT_34XX_SYS_NIRQ,
 123                 .platform_data = &beagle_twldata,
 124         },
 125 };
 126
 127 static int __init omap3_beagle_i2c_init(void)
 128 {
 129         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 130                         ARRAY_SIZE(beagle_i2c_boardinfo));
 131 #ifdef CONFIG_I2C2_OMAP_BEAGLE
 132         omap_register_i2c_bus(2, 400, NULL, 0);
 133 #endif
 134         omap_register_i2c_bus(3, 400, NULL, 0);
 135         return 0;
 136 }
 137
 138 static void __init omap3_beagle_init_irq(void)
 139 {
 140         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 141         omap_init_irq();
 142         omap_gpio_init();
 143 }
 144
 145 static struct platform_device omap3_beagle_lcd_device = {
 146         .name           = "omap3beagle_lcd",
 147         .id             = -1,
 148 };
 149
 150 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 151         .ctrl_name      = "internal",
 152 };
 153
 154 static struct gpio_led gpio_leds[] = {
 155         {
 156                 .name                   = "beagleboard::usr0",
 157                 .default_trigger        = "heartbeat",
 158                 .gpio                   = 150,
 159         },
 160         {
 161                 .name                   = "beagleboard::usr1",
 162                 .default_trigger        = "mmc0",
 163                 .gpio                   = 149,
 164         },
 165 };
 166
 167 static struct gpio_led_platform_data gpio_led_info = {
 168         .leds           = gpio_leds,
 169         .num_leds       = ARRAY_SIZE(gpio_leds),
 170 };
 171
 172 static struct platform_device leds_gpio = {
 173         .name   = "leds-gpio",
 174         .id     = -1,
 175         .dev    = {
 176                 .platform_data  = &gpio_led_info,
 177         },
 178 };
 179
 180 static struct gpio_keys_button gpio_buttons[] = {
 181         {
 182                 .code                   = BTN_EXTRA,
 183                 .gpio                   = 7,
 184                 .desc                   = "user",
 185                 .wakeup                 = 1,
 186         },
 187 };
 188
 189 static struct gpio_keys_platform_data gpio_key_info = {
 190         .buttons        = gpio_buttons,
 191         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 192 };
 193
 194 static struct platform_device keys_gpio = {
 195         .name   = "gpio-keys",
 196         .id     = -1,
 197         .dev    = {
 198                 .platform_data  = &gpio_key_info,
 199         },
 200 };
 201
 202 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 203         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 204         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 205 };
 206
 207 static struct platform_device *omap3_beagle_devices[] __initdata = {
 208         &omap3_beagle_lcd_device,
 209         &leds_gpio,
 210         &keys_gpio,
 211 };
 212
 213 static void __init omap3beagle_flash_init(void)
 214 {
 215         u8 cs = 0;
 216         u8 nandcs = GPMC_CS_NUM + 1;
 217
 218         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 219
 220         /* find out the chip-select on which NAND exists */
 221         while (cs < GPMC_CS_NUM) {
 222                 u32 ret = 0;
 223                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 224
 225                 if ((ret & 0xC00) == 0x800) {
 226                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 227                         if (nandcs > GPMC_CS_NUM)
 228                                 nandcs = cs;
 229                 }
 230                 cs++;
 231         }
 232
 233         if (nandcs > GPMC_CS_NUM) {
 234                 printk(KERN_INFO "NAND: Unable to find configuration "
 235                                  "in GPMC\n ");
 236                 return;
 237         }
 238
 239         if (nandcs < GPMC_CS_NUM) {
 240                 omap3beagle_nand_data.cs = nandcs;
 241                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 242                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 243                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 244
 245                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 246                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 247                         printk(KERN_ERR "Unable to register NAND device\n");
 248         }
 249 }
 250
 251 static void __init omap3_beagle_init(void)
 252 {
 253         omap3_beagle_i2c_init();
 254         platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices));
 255         omap_board_config = omap3_beagle_config;
 256         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 257         omap_serial_init();
 258         hsmmc_init();
 259         usb_musb_init();
 260         usb_ehci_init();
 261         omap3beagle_flash_init();
 262 }
 263
 264 static void __init omap3_beagle_map_io(void)
 265 {
 266         omap2_set_globals_343x();
 267         omap2_map_common_io();
 268 }
 269
 270 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 271         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 272         .phys_io        = 0x48000000,
 273         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 274         .boot_params    = 0x80000100,
 275         .map_io         = omap3_beagle_map_io,
 276         .init_irq       = omap3_beagle_init_irq,
 277         .init_machine   = omap3_beagle_init,
 278         .timer          = &omap_timer,
 279 MACHINE_END