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 int beagle_twl_gpio_setup(struct device *dev,
 118                 unsigned gpio, unsigned ngpio)
 119 {
 120         /* request_gpio(gpio + 0, "mmc0_cd");
 121          * gpio_direction_input(gpio + 0);
 122          */
 123
 124         gpio_request(gpio + 1, "EHCI_nOC");
 125         gpio_direction_input(gpio + 1);
 126
 127         /* gpio + 18 + 0 == ledA, nEN_USB_PWR (out)
 128          * gpio + 18 + 1 == ledB, PMU_STAT (out, a LED)
 129          */
 130
 131         return 0;
 132 }
 133
 134 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 135         .gpio_base      = OMAP_MAX_GPIO_LINES,
 136         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 137         .irq_end        = TWL4030_GPIO_IRQ_END,
 138         .pullups        = BIT(1),
 139         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 140                                 | BIT(15) | BIT(16) | BIT(17),
 141         .setup          = beagle_twl_gpio_setup,
 142 };
 143
 144 static struct twl4030_platform_data beagle_twldata = {
 145         .irq_base       = TWL4030_IRQ_BASE,
 146         .irq_end        = TWL4030_IRQ_END,
 147
 148         /* platform_data for children goes here */
 149         .usb            = &beagle_usb_data,
 150         .gpio           = &beagle_gpio_data,
 151 };
 152
 153 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 154         {
 155                 I2C_BOARD_INFO("twl4030", 0x48),
 156                 .flags = I2C_CLIENT_WAKE,
 157                 .irq = INT_34XX_SYS_NIRQ,
 158                 .platform_data = &beagle_twldata,
 159         },
 160 };
 161
 162 static int __init omap3_beagle_i2c_init(void)
 163 {
 164         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 165                         ARRAY_SIZE(beagle_i2c_boardinfo));
 166 #ifdef CONFIG_I2C2_OMAP_BEAGLE
 167         omap_register_i2c_bus(2, 400, NULL, 0);
 168 #endif
 169         omap_register_i2c_bus(3, 400, NULL, 0);
 170         return 0;
 171 }
 172
 173 static void __init omap3_beagle_init_irq(void)
 174 {
 175         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 176         omap_init_irq();
 177         omap_gpio_init();
 178 }
 179
 180 static struct platform_device omap3_beagle_lcd_device = {
 181         .name           = "omap3beagle_lcd",
 182         .id             = -1,
 183 };
 184
 185 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 186         .ctrl_name      = "internal",
 187 };
 188
 189 static struct gpio_led gpio_leds[] = {
 190         {
 191                 .name                   = "beagleboard::usr0",
 192                 .default_trigger        = "heartbeat",
 193                 .gpio                   = 150,
 194         },
 195         {
 196                 .name                   = "beagleboard::usr1",
 197                 .default_trigger        = "mmc0",
 198                 .gpio                   = 149,
 199         },
 200 };
 201
 202 static struct gpio_led_platform_data gpio_led_info = {
 203         .leds           = gpio_leds,
 204         .num_leds       = ARRAY_SIZE(gpio_leds),
 205 };
 206
 207 static struct platform_device leds_gpio = {
 208         .name   = "leds-gpio",
 209         .id     = -1,
 210         .dev    = {
 211                 .platform_data  = &gpio_led_info,
 212         },
 213 };
 214
 215 static struct gpio_keys_button gpio_buttons[] = {
 216         {
 217                 .code                   = BTN_EXTRA,
 218                 .gpio                   = 7,
 219                 .desc                   = "user",
 220                 .wakeup                 = 1,
 221         },
 222 };
 223
 224 static struct gpio_keys_platform_data gpio_key_info = {
 225         .buttons        = gpio_buttons,
 226         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 227 };
 228
 229 static struct platform_device keys_gpio = {
 230         .name   = "gpio-keys",
 231         .id     = -1,
 232         .dev    = {
 233                 .platform_data  = &gpio_key_info,
 234         },
 235 };
 236
 237 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 238         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 239         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 240 };
 241
 242 static struct platform_device *omap3_beagle_devices[] __initdata = {
 243         &omap3_beagle_lcd_device,
 244         &leds_gpio,
 245         &keys_gpio,
 246 };
 247
 248 static void __init omap3beagle_flash_init(void)
 249 {
 250         u8 cs = 0;
 251         u8 nandcs = GPMC_CS_NUM + 1;
 252
 253         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 254
 255         /* find out the chip-select on which NAND exists */
 256         while (cs < GPMC_CS_NUM) {
 257                 u32 ret = 0;
 258                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 259
 260                 if ((ret & 0xC00) == 0x800) {
 261                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 262                         if (nandcs > GPMC_CS_NUM)
 263                                 nandcs = cs;
 264                 }
 265                 cs++;
 266         }
 267
 268         if (nandcs > GPMC_CS_NUM) {
 269                 printk(KERN_INFO "NAND: Unable to find configuration "
 270                                  "in GPMC\n ");
 271                 return;
 272         }
 273
 274         if (nandcs < GPMC_CS_NUM) {
 275                 omap3beagle_nand_data.cs = nandcs;
 276                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 277                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 278                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 279
 280                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 281                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 282                         printk(KERN_ERR "Unable to register NAND device\n");
 283         }
 284 }
 285
 286 static void __init omap3_beagle_init(void)
 287 {
 288         omap3_beagle_i2c_init();
 289         platform_add_devices(omap3_beagle_devices,
 290                         ARRAY_SIZE(omap3_beagle_devices));
 291         omap_board_config = omap3_beagle_config;
 292         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 293         omap_serial_init();
 294         hsmmc_init();
 295         usb_musb_init();
 296         usb_ehci_init();
 297         omap3beagle_flash_init();
 298 }
 299
 300 static void __init omap3_beagle_map_io(void)
 301 {
 302         omap2_set_globals_343x();
 303         omap2_map_common_io();
 304 }
 305
 306 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 307         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 308         .phys_io        = 0x48000000,
 309         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 310         .boot_params    = 0x80000100,
 311         .map_io         = omap3_beagle_map_io,
 312         .init_irq       = omap3_beagle_init_irq,
 313         .init_machine   = omap3_beagle_init,
 314         .timer          = &omap_timer,
 315 MACHINE_END