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
  20 #include <asm/hardware.h>
  21 #include <asm/mach-types.h>
  22 #include <asm/mach/arch.h>
  23 #include <asm/mach/map.h>
  24 #include <asm/mach/flash.h>
  25
  26 #include <asm/arch/gpio.h>
  27 #include <asm/arch/mux.h>
  28 #include <asm/arch/usb.h>
  29 #include <asm/arch/board.h>
  30 #include <asm/arch/common.h>
  31
  32 #include <asm/io.h>
  33 #include <asm/delay.h>
  34
  35 static struct mtd_partition h4_partitions[] = {
  36         /* bootloader (U-Boot, etc) in first sector */
  37         {
  38               .name             = "bootloader",
  39               .offset           = 0,
  40               .size             = SZ_128K,
  41               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  42         },
  43         /* bootloader params in the next sector */
  44         {
  45               .name             = "params",
  46               .offset           = MTDPART_OFS_APPEND,
  47               .size             = SZ_128K,
  48               .mask_flags       = 0,
  49         },
  50         /* kernel */
  51         {
  52               .name             = "kernel",
  53               .offset           = MTDPART_OFS_APPEND,
  54               .size             = SZ_2M,
  55               .mask_flags       = 0
  56         },
  57         /* file system */
  58         {
  59               .name             = "filesystem",
  60               .offset           = MTDPART_OFS_APPEND,
  61               .size             = MTDPART_SIZ_FULL,
  62               .mask_flags       = 0
  63         }
  64 };
  65
  66 static struct flash_platform_data h4_flash_data = {
  67         .map_name       = "cfi_probe",
  68         .width          = 2,
  69         .parts          = h4_partitions,
  70         .nr_parts       = ARRAY_SIZE(h4_partitions),
  71 };
  72
  73 static struct resource h4_flash_resource = {
  74         .start          = H4_CS0_BASE,
  75         .end            = H4_CS0_BASE + SZ_64M - 1,
  76         .flags          = IORESOURCE_MEM,
  77 };
  78
  79 static struct platform_device h4_flash_device = {
  80         .name           = "omapflash",
  81         .id             = 0,
  82         .dev            = {
  83                 .platform_data  = &h4_flash_data,
  84         },
  85         .num_resources  = 1,
  86         .resource       = &h4_flash_resource,
  87 };
  88
  89 static struct resource h4_smc91x_resources[] = {
  90         [0] = {
  91                 .start  = OMAP24XX_ETHR_START,          /* Physical */
  92                 .end    = OMAP24XX_ETHR_START + 0xf,
  93                 .flags  = IORESOURCE_MEM,
  94         },
  95         [1] = {
  96                 .start  = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
  97                 .end    = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
  98                 .flags  = IORESOURCE_IRQ,
  99         },
 100 };
 101
 102 static struct platform_device h4_smc91x_device = {
 103         .name           = "smc91x",
 104         .id             = -1,
 105         .num_resources  = ARRAY_SIZE(h4_smc91x_resources),
 106         .resource       = h4_smc91x_resources,
 107 };
 108
 109 static struct platform_device *h4_devices[] __initdata = {
 110         &h4_smc91x_device,
 111         &h4_flash_device,
 112 };
 113
 114 static inline void __init h4_init_smc91x(void)
 115 {
 116         u32 l;
 117
 118         if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
 119                 printk(KERN_ERR "Failed to request GPIO#%d for smc91x IRQ\n",
 120                         OMAP24XX_ETHR_GPIO_IRQ);
 121                 return;
 122         }
 123         set_irq_type(OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 124                                  IRQT_FALLING);
 125         /* Set pin M15 to mux mode 3 -> GPIO#92, disable PU/PD */
 126         /* FIXME: change this using omap2 mux api when it's ready */
 127         l = __raw_readl(0xd8000000 + 0x108);
 128         l &= ~(((1 << 5) - 1) << 16);
 129         l |= 3 << 16;
 130         __raw_writel(l, 0xd8000000 + 0x108);
 131 }
 132
 133 static void __init omap_h4_init_irq(void)
 134 {
 135         omap_init_irq();
 136         omap_gpio_init();
 137         h4_init_smc91x();
 138 }
 139
 140 static struct omap_uart_config h4_uart_config __initdata = {
 141         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 142 };
 143
 144 static struct omap_mmc_config h4_mmc_config __initdata = {
 145         .mmc [0] = {
 146                 .enabled        = 1,
 147                 .wire4          = 1,
 148                 .wp_pin         = -1,
 149                 .power_pin      = -1,
 150                 .switch_pin     = -1,
 151         },
 152 };
 153
 154 static struct omap_board_config_kernel h4_config[] = {
 155         { OMAP_TAG_UART,        &h4_uart_config },
 156         { OMAP_TAG_MMC,         &h4_mmc_config },
 157 };
 158
 159 static void __init omap_h4_init(void)
 160 {
 161         /*
 162          * Make sure the serial ports are muxed on at this point.
 163          * You have to mux them off in device drivers later on
 164          * if not needed.
 165          */
 166         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 167         omap_board_config = h4_config;
 168         omap_board_config_size = ARRAY_SIZE(h4_config);
 169         omap_serial_init();
 170 }
 171
 172 static void __init omap_h4_map_io(void)
 173 {
 174         omap_map_common_io();
 175 }
 176
 177 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 178         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 179         .phys_ram       = 0x80000000,
 180         .phys_io        = 0x48000000,
 181         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 182         .boot_params    = 0x80000100,
 183         .map_io         = omap_h4_map_io,
 184         .init_irq       = omap_h4_init_irq,
 185         .init_machine   = omap_h4_init,
 186         .timer          = &omap_timer,
 187 MACHINE_END