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/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 extern int omap_gpio_init(void);
  38
  39 static struct mtd_partition h4_partitions[] = {
  40         /* bootloader (U-Boot, etc) in first sector */
  41         {
  42               .name             = "bootloader",
  43               .offset           = 0,
  44               .size             = SZ_128K,
  45               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  46         },
  47         /* bootloader params in the next sector */
  48         {
  49               .name             = "params",
  50               .offset           = MTDPART_OFS_APPEND,
  51               .size             = SZ_128K,
  52               .mask_flags       = 0,
  53         },
  54         /* kernel */
  55         {
  56               .name             = "kernel",
  57               .offset           = MTDPART_OFS_APPEND,
  58               .size             = SZ_2M,
  59               .mask_flags       = 0
  60         },
  61         /* file system */
  62         {
  63               .name             = "filesystem",
  64               .offset           = MTDPART_OFS_APPEND,
  65               .size             = MTDPART_SIZ_FULL,
  66               .mask_flags       = 0
  67         }
  68 };
  69
  70 static struct flash_platform_data h4_flash_data = {
  71         .map_name       = "cfi_probe",
  72         .width          = 2,
  73         .parts          = h4_partitions,
  74         .nr_parts       = ARRAY_SIZE(h4_partitions),
  75 };
  76
  77 static struct resource h4_flash_resource = {
  78         .start          = H4_CS0_BASE,
  79         .end            = H4_CS0_BASE + SZ_64M - 1,
  80         .flags          = IORESOURCE_MEM,
  81 };
  82
  83 static struct platform_device h4_flash_device = {
  84         .name           = "omapflash",
  85         .id             = 0,
  86         .dev            = {
  87                 .platform_data  = &h4_flash_data,
  88         },
  89         .num_resources  = 1,
  90         .resource       = &h4_flash_resource,
  91 };
  92
  93 static struct resource h4_smc91x_resources[] = {
  94         [0] = {
  95                 .start  = OMAP24XX_ETHR_START,          /* Physical */
  96                 .end    = OMAP24XX_ETHR_START + 0xf,
  97                 .flags  = IORESOURCE_MEM,
  98         },
  99         [1] = {
 100                 .start  = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 101                 .end    = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 102                 .flags  = IORESOURCE_IRQ,
 103         },
 104 };
 105
 106 static struct platform_device h4_smc91x_device = {
 107         .name           = "smc91x",
 108         .id             = -1,
 109         .num_resources  = ARRAY_SIZE(h4_smc91x_resources),
 110         .resource       = h4_smc91x_resources,
 111 };
 112
 113 static struct platform_device *h4_devices[] __initdata = {
 114         &h4_smc91x_device,
 115         &h4_flash_device,
 116 };
 117
 118 static inline void __init h4_init_smc91x(void)
 119 {
 120         /* Make sure CS1 timings are correct */
 121         GPMC_CONFIG1_1 = 0x00011200;
 122         GPMC_CONFIG2_1 = 0x001f1f01;
 123         GPMC_CONFIG3_1 = 0x00080803;
 124         GPMC_CONFIG4_1 = 0x1c091c09;
 125         GPMC_CONFIG5_1 = 0x041f1f1f;
 126         GPMC_CONFIG6_1 = 0x000004c4;
 127         GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
 128         udelay(100);
 129
 130         omap_cfg_reg(M15_24XX_GPIO92);
 131         if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
 132                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 133                         OMAP24XX_ETHR_GPIO_IRQ);
 134                 return;
 135         }
 136         omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
 137 }
 138
 139 static void __init omap_h4_init_irq(void)
 140 {
 141         omap_init_irq();
 142         omap_gpio_init();
 143         h4_init_smc91x();
 144 }
 145
 146 static struct omap_uart_config h4_uart_config __initdata = {
 147         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 148 };
 149
 150 static struct omap_mmc_config h4_mmc_config __initdata = {
 151         .mmc [0] = {
 152                 .enabled        = 1,
 153                 .wire4          = 1,
 154                 .wp_pin         = -1,
 155                 .power_pin      = -1,
 156                 .switch_pin     = -1,
 157         },
 158 };
 159
 160 static struct omap_board_config_kernel h4_config[] = {
 161         { OMAP_TAG_UART,        &h4_uart_config },
 162         { OMAP_TAG_MMC,         &h4_mmc_config },
 163 };
 164
 165 static void __init omap_h4_init(void)
 166 {
 167         /*
 168          * Make sure the serial ports are muxed on at this point.
 169          * You have to mux them off in device drivers later on
 170          * if not needed.
 171          */
 172         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 173         omap_board_config = h4_config;
 174         omap_board_config_size = ARRAY_SIZE(h4_config);
 175         omap_serial_init();
 176 }
 177
 178 static void __init omap_h4_map_io(void)
 179 {
 180         omap_map_common_io();
 181 }
 182
 183 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 184         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 185         .phys_ram       = 0x80000000,
 186         .phys_io        = 0x48000000,
 187         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 188         .boot_params    = 0x80000100,
 189         .map_io         = omap_h4_map_io,
 190         .init_irq       = omap_h4_init_irq,
 191         .init_machine   = omap_h4_init,
 192         .timer          = &omap_timer,
 193 MACHINE_END