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 #ifdef CONFIG_I2C2_OMAP_BEAGLE
 106         omap_register_i2c_bus(2, 400, NULL, 0);
 107 #endif
 108         omap_register_i2c_bus(3, 400, NULL, 0);
 109         return 0;
 110 }
 111
 112 static void __init omap3_beagle_init_irq(void)
 113 {
 114         omap2_init_common_hw();
 115         omap_init_irq();
 116         omap_gpio_init();
 117 }
 118
 119 static struct omap_mmc_config omap3beagle_mmc_config __initdata = {
 120         .mmc [0] = {
 121                 .enabled        = 1,
 122                 .wire4          = 1,
 123         },
 124 };
 125
 126 static struct platform_device omap3_beagle_twl4030rtc_device = {
 127         .name           = "twl4030_rtc",
 128         .id             = -1,
 129 };
 130
 131 static struct platform_device omap3_beagle_lcd_device = {
 132         .name           = "omap3beagle_lcd",
 133         .id             = -1,
 134 };
 135
 136 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 137         .ctrl_name      = "internal",
 138 };
 139
 140 struct gpio_led gpio_leds[] = {
 141         {
 142                 .name                   = "beagleboard::usr0",
 143                 .default_trigger        = "none",
 144                 .gpio                   = 150,
 145         },
 146         {
 147                 .name                   = "beagleboard::usr1",
 148                 .default_trigger        = "none",
 149                 .gpio                   = 149,
 150         },
 151 };
 152
 153 static struct gpio_led_platform_data gpio_led_info = {
 154         .leds           = gpio_leds,
 155         .num_leds       = ARRAY_SIZE(gpio_leds),
 156 };
 157
 158 static struct platform_device leds_gpio = {
 159         .name   = "leds-gpio",
 160         .id     = -1,
 161         .dev    = {
 162                 .platform_data  = &gpio_led_info,
 163         },
 164 };
 165
 166 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 167         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 168         { OMAP_TAG_MMC,         &omap3beagle_mmc_config },
 169         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 170 };
 171
 172 static struct platform_device *omap3_beagle_devices[] __initdata = {
 173         &omap3_beagle_lcd_device,
 174 #ifdef CONFIG_RTC_DRV_TWL4030
 175         &omap3_beagle_twl4030rtc_device,
 176 #endif
 177         &leds_gpio,
 178 };
 179
 180 void __init omap3beagle_flash_init(void)
 181 {
 182         u8 cs = 0;
 183         u8 nandcs = GPMC_CS_NUM + 1;
 184
 185         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 186
 187         /* find out the chip-select on which NAND exists */
 188         while (cs < GPMC_CS_NUM) {
 189                 u32 ret = 0;
 190                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 191
 192                 if ((ret & 0xC00) == 0x800) {
 193                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 194                         if (nandcs > GPMC_CS_NUM)
 195                                 nandcs = cs;
 196                 }
 197                 cs++;
 198         }
 199
 200         if (nandcs > GPMC_CS_NUM) {
 201                 printk(KERN_INFO "NAND: Unable to find configuration "
 202                                  "in GPMC\n ");
 203                 return;
 204         }
 205
 206         if (nandcs < GPMC_CS_NUM) {
 207                 omap3beagle_nand_data.cs = nandcs;
 208                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 209                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 210                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 211
 212                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 213                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 214                         printk(KERN_ERR "Unable to register NAND device\n");
 215         }
 216 }
 217
 218 static void __init omap3_beagle_init(void)
 219 {
 220         platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices));
 221         omap_board_config = omap3_beagle_config;
 222         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 223         omap_serial_init();
 224         hsmmc_init();
 225         usb_musb_init();
 226         usb_ehci_init();
 227         omap3beagle_flash_init();
 228 }
 229
 230 arch_initcall(omap3_beagle_i2c_init);
 231
 232 static void __init omap3_beagle_map_io(void)
 233 {
 234         omap2_set_globals_343x();
 235         omap2_map_common_io();
 236 }
 237
 238 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 239         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 240         .phys_io        = 0x48000000,
 241         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 242         .boot_params    = 0x80000100,
 243         .map_io         = omap3_beagle_map_io,
 244         .init_irq       = omap3_beagle_init_irq,
 245         .init_machine   = omap3_beagle_init,
 246         .timer          = &omap_timer,
 247 MACHINE_END