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/mtd/mtd.h>
  24 #include <linux/mtd/partitions.h>
  25 #include <linux/mtd/nand.h>
  26
  27 #include <mach/hardware.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31 #include <asm/mach/flash.h>
  32
  33 #include <mach/gpio.h>
  34 #include <mach/board.h>
  35 #include <mach/usb-musb.h>
  36 #include <mach/usb-ehci.h>
  37 #include <mach/hsmmc.h>
  38 #include <mach/common.h>
  39 #include <mach/gpmc.h>
  40 #include <mach/nand.h>
  41
  42 #define GPMC_CS0_BASE  0x60
  43 #define GPMC_CS_SIZE   0x30
  44
  45 static struct mtd_partition omap3beagle_nand_partitions[] = {
  46         /* All the partition sizes are listed in terms of NAND block size */
  47         {
  48                 .name           = "X-Loader",
  49                 .offset         = 0,
  50                 .size           = 4*(64 * 2048),
  51                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  52         },
  53         {
  54                 .name           = "U-Boot",
  55                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  56                 .size           = 15*(64 * 2048),
  57                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  58         },
  59         {
  60                 .name           = "U-Boot Env",
  61                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  62                 .size           = 1*(64 * 2048),
  63         },
  64         {
  65                 .name           = "Kernel",
  66                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  67                 .size           = 32*(64 * 2048),
  68         },
  69         {
  70                 .name           = "File System",
  71                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  72                 .size           = MTDPART_SIZ_FULL,
  73         },
  74 };
  75
  76 static struct omap_nand_platform_data omap3beagle_nand_data = {
  77         .parts          = omap3beagle_nand_partitions,
  78         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  79         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  80         .nand_setup     = NULL,
  81         .dev_ready      = NULL,
  82 };
  83
  84 static struct resource omap3beagle_nand_resource = {
  85         .flags          = IORESOURCE_MEM,
  86 };
  87
  88 static struct platform_device omap3beagle_nand_device = {
  89         .name           = "omap2-nand",
  90         .id             = -1,
  91         .dev            = {
  92                 .platform_data  = &omap3beagle_nand_data,
  93         },
  94         .num_resources  = 1,
  95         .resource       = &omap3beagle_nand_resource,
  96 };
  97
  98 #include "sdram-micron-mt46h32m32lf-6.h"
  99
 100 static struct omap_uart_config omap3_beagle_uart_config __initdata = {
 101         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 102 };
 103
 104 static int __init omap3_beagle_i2c_init(void)
 105 {
 106         omap_register_i2c_bus(1, 2600, NULL, 0);
 107 #ifdef CONFIG_I2C2_OMAP_BEAGLE
 108         omap_register_i2c_bus(2, 400, NULL, 0);
 109 #endif
 110         omap_register_i2c_bus(3, 400, NULL, 0);
 111         return 0;
 112 }
 113
 114 static void __init omap3_beagle_init_irq(void)
 115 {
 116         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 117         omap_init_irq();
 118         omap_gpio_init();
 119 }
 120
 121 static struct omap_mmc_config omap3beagle_mmc_config __initdata = {
 122         .mmc [0] = {
 123                 .enabled        = 1,
 124                 .wire4          = 1,
 125         },
 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 struct gpio_led gpio_leds[] = {
 143         {
 144                 .name                   = "beagleboard::usr0",
 145                 .default_trigger        = "none",
 146                 .gpio                   = 150,
 147         },
 148         {
 149                 .name                   = "beagleboard::usr1",
 150                 .default_trigger        = "none",
 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 omap_board_config_kernel omap3_beagle_config[] __initdata = {
 169         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 170         { OMAP_TAG_MMC,         &omap3beagle_mmc_config },
 171         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 172 };
 173
 174 static struct platform_device *omap3_beagle_devices[] __initdata = {
 175         &omap3_beagle_lcd_device,
 176 #ifdef CONFIG_RTC_DRV_TWL4030
 177         &omap3_beagle_twl4030rtc_device,
 178 #endif
 179         &leds_gpio,
 180 };
 181
 182 void __init omap3beagle_flash_init(void)
 183 {
 184         u8 cs = 0;
 185         u8 nandcs = GPMC_CS_NUM + 1;
 186
 187         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 188
 189         /* find out the chip-select on which NAND exists */
 190         while (cs < GPMC_CS_NUM) {
 191                 u32 ret = 0;
 192                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 193
 194                 if ((ret & 0xC00) == 0x800) {
 195                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 196                         if (nandcs > GPMC_CS_NUM)
 197                                 nandcs = cs;
 198                 }
 199                 cs++;
 200         }
 201
 202         if (nandcs > GPMC_CS_NUM) {
 203                 printk(KERN_INFO "NAND: Unable to find configuration "
 204                                  "in GPMC\n ");
 205                 return;
 206         }
 207
 208         if (nandcs < GPMC_CS_NUM) {
 209                 omap3beagle_nand_data.cs = nandcs;
 210                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 211                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 212                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 213
 214                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 215                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 216                         printk(KERN_ERR "Unable to register NAND device\n");
 217         }
 218 }
 219
 220 static void __init omap3_beagle_init(void)
 221 {
 222         platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices));
 223         omap_board_config = omap3_beagle_config;
 224         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 225         omap_serial_init();
 226         hsmmc_init();
 227         usb_musb_init();
 228         usb_ehci_init();
 229         omap3beagle_flash_init();
 230 }
 231
 232 arch_initcall(omap3_beagle_i2c_init);
 233
 234 static void __init omap3_beagle_map_io(void)
 235 {
 236         omap2_set_globals_343x();
 237         omap2_map_common_io();
 238 }
 239
 240 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 241         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 242         .phys_io        = 0x48000000,
 243         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 244         .boot_params    = 0x80000100,
 245         .map_io         = omap3_beagle_map_io,
 246         .init_irq       = omap3_beagle_init_irq,
 247         .init_machine   = omap3_beagle_init,
 248         .timer          = &omap_timer,
 249 MACHINE_END