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 <asm/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 <asm/arch/gpio.h>
  34 #include <asm/arch/board.h>
  35 #include <asm/arch/usb-musb.h>
  36 #include <asm/arch/usb-ehci.h>
  37 #include <asm/arch/hsmmc.h>
  38 #include <asm/arch/common.h>
  39 #include <asm/arch/gpmc.h>
  40 #include <asm/arch/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 static struct omap_uart_config omap3_beagle_uart_config __initdata = {
  99         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 100 };
 101
 102 static int __init omap3_beagle_i2c_init(void)
 103 {
 104         omap_register_i2c_bus(1, 2600, NULL, 0);
 105         omap_register_i2c_bus(2, 400, NULL, 0);
 106         omap_register_i2c_bus(3, 400, NULL, 0);
 107         return 0;
 108 }
 109
 110 static void __init omap3_beagle_init_irq(void)
 111 {
 112         omap2_init_common_hw();
 113         omap_init_irq();
 114         omap_gpio_init();
 115 }
 116
 117 static struct omap_mmc_config omap3beagle_mmc_config __initdata = {
 118         .mmc [0] = {
 119                 .enabled        = 1,
 120                 .wire4          = 1,
 121         },
 122 };
 123
 124 static struct platform_device omap3_beagle_twl4030rtc_device = {
 125         .name           = "twl4030_rtc",
 126         .id             = -1,
 127 };
 128
 129 static struct platform_device omap3_beagle_lcd_device = {
 130         .name           = "omap3beagle_lcd",
 131         .id             = -1,
 132 };
 133
 134 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 135         .ctrl_name      = "internal",
 136 };
 137
 138 struct gpio_led gpio_leds[] = {
 139         {
 140                 .name                   = "beagleboard::usr0",
 141                 .default_trigger        = "none",
 142                 .gpio                   = 150,
 143         },
 144         {
 145                 .name                   = "beagleboard::usr1",
 146                 .default_trigger        = "none",
 147                 .gpio                   = 149,
 148         },
 149 };
 150
 151 static struct gpio_led_platform_data gpio_led_info = {
 152         .leds           = gpio_leds,
 153         .num_leds       = ARRAY_SIZE(gpio_leds),
 154 };
 155
 156 static struct platform_device leds_gpio = {
 157         .name   = "leds-gpio",
 158         .id     = -1,
 159         .dev    = {
 160                 .platform_data  = &gpio_led_info,
 161         },
 162 };
 163
 164 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 165         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 166         { OMAP_TAG_MMC,         &omap3beagle_mmc_config },
 167         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 168 };
 169
 170 static struct platform_device *omap3_beagle_devices[] __initdata = {
 171         &omap3_beagle_lcd_device,
 172 #ifdef CONFIG_RTC_DRV_TWL4030
 173         &omap3_beagle_twl4030rtc_device,
 174 #endif
 175         &leds_gpio,
 176 };
 177
 178 void __init omap3beagle_flash_init(void)
 179 {
 180         u8 cs = 0;
 181         u8 nandcs = GPMC_CS_NUM + 1;
 182
 183         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 184
 185         /* find out the chip-select on which NAND exists */
 186         while (cs < GPMC_CS_NUM) {
 187                 u32 ret = 0;
 188                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 189
 190                 if ((ret & 0xC00) == 0x800) {
 191                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 192                         if (nandcs > GPMC_CS_NUM)
 193                                 nandcs = cs;
 194                 }
 195                 cs++;
 196         }
 197
 198         if (nandcs > GPMC_CS_NUM) {
 199                 printk(KERN_INFO "NAND: Unable to find configuration "
 200                                  "in GPMC\n ");
 201                 return;
 202         }
 203
 204         if (nandcs < GPMC_CS_NUM) {
 205                 omap3beagle_nand_data.cs = nandcs;
 206                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 207                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 208                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 209
 210                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 211                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 212                         printk(KERN_ERR "Unable to register NAND device\n");
 213         }
 214 }
 215
 216 static void __init omap3_beagle_init(void)
 217 {
 218         platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices));
 219         omap_board_config = omap3_beagle_config;
 220         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 221         omap_serial_init();
 222         hsmmc_init();
 223         usb_musb_init();
 224         usb_ehci_init();
 225         omap3beagle_flash_init();
 226 }
 227
 228 arch_initcall(omap3_beagle_i2c_init);
 229
 230 static void __init omap3_beagle_map_io(void)
 231 {
 232         omap2_set_globals_343x();
 233         omap2_map_common_io();
 234 }
 235
 236 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 237         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 238         .phys_io        = 0x48000000,
 239         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 240         .boot_params    = 0x80000100,
 241         .map_io         = omap3_beagle_map_io,
 242         .init_irq       = omap3_beagle_init_irq,
 243         .init_machine   = omap3_beagle_init,
 244         .timer          = &omap_timer,
 245 MACHINE_END