arch/arm/mach-omap2/board-h4.c

   1 /*
   2  * linux/arch/arm/mach-omap/omap2/board-h4.c
   3  *
   4  * Copyright (C) 2005 Nokia Corporation
   5  * Author: Paul Mundt <paul.mundt@nokia.com>
   6  *
   7  * Modified from mach-omap/omap1/board-generic.c
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/partitions.h>
  19 #include <linux/delay.h>
  20
  21 #include <asm/hardware.h>
  22 #include <asm/mach-types.h>
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/map.h>
  25 #include <asm/mach/flash.h>
  26
  27 #include <asm/arch/gpio.h>
  28 #include <asm/arch/mux.h>
  29 #include <asm/arch/usb.h>
  30 #include <asm/arch/board.h>
  31 #include <asm/arch/common.h>
  32 #include <asm/arch/prcm.h>
  33
  34 #include <asm/io.h>
  35 #include <asm/delay.h>
  36
  37 static struct mtd_partition h4_partitions[] = {
  38         /* bootloader (U-Boot, etc) in first sector */
  39         {
  40               .name             = "bootloader",
  41               .offset           = 0,
  42               .size             = SZ_128K,
  43               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  44         },
  45         /* bootloader params in the next sector */
  46         {
  47               .name             = "params",
  48               .offset           = MTDPART_OFS_APPEND,
  49               .size             = SZ_128K,
  50               .mask_flags       = 0,
  51         },
  52         /* kernel */
  53         {
  54               .name             = "kernel",
  55               .offset           = MTDPART_OFS_APPEND,
  56               .size             = SZ_2M,
  57               .mask_flags       = 0
  58         },
  59         /* file system */
  60         {
  61               .name             = "filesystem",
  62               .offset           = MTDPART_OFS_APPEND,
  63               .size             = MTDPART_SIZ_FULL,
  64               .mask_flags       = 0
  65         }
  66 };
  67
  68 static struct flash_platform_data h4_flash_data = {
  69         .map_name       = "cfi_probe",
  70         .width          = 2,
  71         .parts          = h4_partitions,
  72         .nr_parts       = ARRAY_SIZE(h4_partitions),
  73 };
  74
  75 static struct resource h4_flash_resource = {
  76         .start          = H4_CS0_BASE,
  77         .end            = H4_CS0_BASE + SZ_64M - 1,
  78         .flags          = IORESOURCE_MEM,
  79 };
  80
  81 static struct platform_device h4_flash_device = {
  82         .name           = "omapflash",
  83         .id             = 0,
  84         .dev            = {
  85                 .platform_data  = &h4_flash_data,
  86         },
  87         .num_resources  = 1,
  88         .resource       = &h4_flash_resource,
  89 };
  90
  91 static struct resource h4_smc91x_resources[] = {
  92         [0] = {
  93                 .start  = OMAP24XX_ETHR_START,          /* Physical */
  94                 .end    = OMAP24XX_ETHR_START + 0xf,
  95                 .flags  = IORESOURCE_MEM,
  96         },
  97         [1] = {
  98                 .start  = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
  99                 .end    = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 100                 .flags  = IORESOURCE_IRQ,
 101         },
 102 };
 103
 104 static struct platform_device h4_smc91x_device = {
 105         .name           = "smc91x",
 106         .id             = -1,
 107         .num_resources  = ARRAY_SIZE(h4_smc91x_resources),
 108         .resource       = h4_smc91x_resources,
 109 };
 110
 111 static struct platform_device *h4_devices[] __initdata = {
 112         &h4_smc91x_device,
 113         &h4_flash_device,
 114 };
 115
 116 static inline void __init h4_init_smc91x(void)
 117 {
 118         /* Make sure CS1 timings are correct */
 119         GPMC_CONFIG1_1 = 0x00011200;
 120         GPMC_CONFIG2_1 = 0x001f1f01;
 121         GPMC_CONFIG3_1 = 0x00080803;
 122         GPMC_CONFIG4_1 = 0x1c091c09;
 123         GPMC_CONFIG5_1 = 0x041f1f1f;
 124         GPMC_CONFIG6_1 = 0x000004c4;
 125         GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
 126         udelay(100);
 127
 128         omap_cfg_reg(M15_24XX_GPIO92);
 129         if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
 130                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 131                         OMAP24XX_ETHR_GPIO_IRQ);
 132                 return;
 133         }
 134         omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
 135 }
 136
 137 static void __init omap_h4_init_irq(void)
 138 {
 139         omap_init_irq();
 140         omap_gpio_init();
 141         h4_init_smc91x();
 142 }
 143
 144 static struct omap_uart_config h4_uart_config __initdata = {
 145         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 146 };
 147
 148 static struct omap_mmc_config h4_mmc_config __initdata = {
 149         .mmc [0] = {
 150                 .enabled        = 1,
 151                 .wire4          = 1,
 152                 .wp_pin         = -1,
 153                 .power_pin      = -1,
 154                 .switch_pin     = -1,
 155         },
 156 };
 157
 158 static struct omap_lcd_config h4_lcd_config __initdata = {
 159         .panel_name     = "h4",
 160         .ctrl_name      = "internal",
 161 };
 162
 163 static struct omap_board_config_kernel h4_config[] = {
 164         { OMAP_TAG_UART,        &h4_uart_config },
 165         { OMAP_TAG_MMC,         &h4_mmc_config },
 166         { OMAP_TAG_LCD,         &h4_lcd_config },
 167 };
 168
 169 static void __init omap_h4_init(void)
 170 {
 171         /*
 172          * Make sure the serial ports are muxed on at this point.
 173          * You have to mux them off in device drivers later on
 174          * if not needed.
 175          */
 176         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 177         omap_board_config = h4_config;
 178         omap_board_config_size = ARRAY_SIZE(h4_config);
 179         omap_serial_init();
 180 }
 181
 182 static void __init omap_h4_map_io(void)
 183 {
 184         omap_map_common_io();
 185 }
 186
 187 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 188         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 189         .phys_ram       = 0x80000000,
 190         .phys_io        = 0x48000000,
 191         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 192         .boot_params    = 0x80000100,
 193         .map_io         = omap_h4_map_io,
 194         .init_irq       = omap_h4_init_irq,
 195         .init_machine   = omap_h4_init,
 196         .timer          = &omap_timer,
 197 MACHINE_END