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_usb_data beagle_usb_data = {
 114         .usb_mode       = T2_USB_MODE_ULPI,
 115 };
 116
 117 static struct twl4030_platform_data beagle_twldata = {
 118         .irq_base       = TWL4030_IRQ_BASE,
 119         .irq_end        = TWL4030_IRQ_END,
 120
 121         /* platform_data for children goes here */
 122         .usb            = &beagle_usb_data,
 123 };
 124
 125 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 126         {
 127                 I2C_BOARD_INFO("twl4030", 0x48),
 128                 .flags = I2C_CLIENT_WAKE,
 129                 .irq = INT_34XX_SYS_NIRQ,
 130                 .platform_data = &beagle_twldata,
 131         },
 132 };
 133
 134 static int __init omap3_beagle_i2c_init(void)
 135 {
 136         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 137                         ARRAY_SIZE(beagle_i2c_boardinfo));
 138 #ifdef CONFIG_I2C2_OMAP_BEAGLE
 139         omap_register_i2c_bus(2, 400, NULL, 0);
 140 #endif
 141         omap_register_i2c_bus(3, 400, NULL, 0);
 142         return 0;
 143 }
 144
 145 static void __init omap3_beagle_init_irq(void)
 146 {
 147         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 148         omap_init_irq();
 149         omap_gpio_init();
 150 }
 151
 152 static struct platform_device omap3_beagle_lcd_device = {
 153         .name           = "omap3beagle_lcd",
 154         .id             = -1,
 155 };
 156
 157 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 158         .ctrl_name      = "internal",
 159 };
 160
 161 static struct gpio_led gpio_leds[] = {
 162         {
 163                 .name                   = "beagleboard::usr0",
 164                 .default_trigger        = "heartbeat",
 165                 .gpio                   = 150,
 166         },
 167         {
 168                 .name                   = "beagleboard::usr1",
 169                 .default_trigger        = "mmc0",
 170                 .gpio                   = 149,
 171         },
 172 };
 173
 174 static struct gpio_led_platform_data gpio_led_info = {
 175         .leds           = gpio_leds,
 176         .num_leds       = ARRAY_SIZE(gpio_leds),
 177 };
 178
 179 static struct platform_device leds_gpio = {
 180         .name   = "leds-gpio",
 181         .id     = -1,
 182         .dev    = {
 183                 .platform_data  = &gpio_led_info,
 184         },
 185 };
 186
 187 static struct gpio_keys_button gpio_buttons[] = {
 188         {
 189                 .code                   = BTN_EXTRA,
 190                 .gpio                   = 7,
 191                 .desc                   = "user",
 192                 .wakeup                 = 1,
 193         },
 194 };
 195
 196 static struct gpio_keys_platform_data gpio_key_info = {
 197         .buttons        = gpio_buttons,
 198         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 199 };
 200
 201 static struct platform_device keys_gpio = {
 202         .name   = "gpio-keys",
 203         .id     = -1,
 204         .dev    = {
 205                 .platform_data  = &gpio_key_info,
 206         },
 207 };
 208
 209 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 210         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 211         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 212 };
 213
 214 static struct platform_device *omap3_beagle_devices[] __initdata = {
 215         &omap3_beagle_lcd_device,
 216         &leds_gpio,
 217         &keys_gpio,
 218 };
 219
 220 static void __init omap3beagle_flash_init(void)
 221 {
 222         u8 cs = 0;
 223         u8 nandcs = GPMC_CS_NUM + 1;
 224
 225         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 226
 227         /* find out the chip-select on which NAND exists */
 228         while (cs < GPMC_CS_NUM) {
 229                 u32 ret = 0;
 230                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 231
 232                 if ((ret & 0xC00) == 0x800) {
 233                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 234                         if (nandcs > GPMC_CS_NUM)
 235                                 nandcs = cs;
 236                 }
 237                 cs++;
 238         }
 239
 240         if (nandcs > GPMC_CS_NUM) {
 241                 printk(KERN_INFO "NAND: Unable to find configuration "
 242                                  "in GPMC\n ");
 243                 return;
 244         }
 245
 246         if (nandcs < GPMC_CS_NUM) {
 247                 omap3beagle_nand_data.cs = nandcs;
 248                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 249                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 250                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 251
 252                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 253                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 254                         printk(KERN_ERR "Unable to register NAND device\n");
 255         }
 256 }
 257
 258 static void __init omap3_beagle_init(void)
 259 {
 260         omap3_beagle_i2c_init();
 261         platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices));
 262         omap_board_config = omap3_beagle_config;
 263         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 264         omap_serial_init();
 265         hsmmc_init();
 266         usb_musb_init();
 267         usb_ehci_init();
 268         omap3beagle_flash_init();
 269 }
 270
 271 static void __init omap3_beagle_map_io(void)
 272 {
 273         omap2_set_globals_343x();
 274         omap2_map_common_io();
 275 }
 276
 277 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 278         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 279         .phys_io        = 0x48000000,
 280         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 281         .boot_params    = 0x80000100,
 282         .map_io         = omap3_beagle_map_io,
 283         .init_irq       = omap3_beagle_init_irq,
 284         .init_machine   = omap3_beagle_init,
 285         .timer          = &omap_timer,
 286 MACHINE_END