arch/arm/mach-omap/board-perseus2.c

   1 /*
   2  * linux/arch/arm/mach-omap/board-perseus2.c
   3  *
   4  * Modified from board-generic.c
   5  *
   6  * Original OMAP730 support by Jean Pihet <j-pihet@ti.com>
   7  * Updated for 2.6 by Kevin Hilman <kjh@hilman.org>
   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/delay.h>
  18 #include <linux/mtd/mtd.h>
  19 #include <linux/mtd/partitions.h>
  20
  21 #include <asm/hardware.h>
  22 #include <asm/mach-types.h>
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/flash.h>
  25 #include <asm/mach/map.h>
  26
  27 #include <asm/arch/gpio.h>
  28 #include <asm/arch/mux.h>
  29 #include <asm/arch/fpga.h>
  30
  31 #include "common.h"
  32
  33 static struct resource smc91x_resources[] = {
  34         [0] = {
  35                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
  36                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
  37                 .flags  = IORESOURCE_MEM,
  38         },
  39         [1] = {
  40                 .start  = INT_730_MPU_EXT_NIRQ,
  41                 .end    = 0,
  42                 .flags  = IORESOURCE_IRQ,
  43         },
  44 };
  45
  46 static int __initdata p2_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 0};
  47
  48 static struct mtd_partition p2_partitions[] = {
  49         /* bootloader (U-Boot, etc) in first sector */
  50         {
  51               .name             = "bootloader",
  52               .offset           = 0,
  53               .size             = SZ_128K,
  54               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  55         },
  56         /* bootloader params in the next sector */
  57         {
  58               .name             = "params",
  59               .offset           = MTDPART_OFS_APPEND,
  60               .size             = SZ_128K,
  61               .mask_flags       = 0,
  62         },
  63         /* kernel */
  64         {
  65               .name             = "kernel",
  66               .offset           = MTDPART_OFS_APPEND,
  67               .size             = SZ_2M,
  68               .mask_flags       = 0
  69         },
  70         /* rest of flash is a file system */
  71         {
  72               .name             = "rootfs",
  73               .offset           = MTDPART_OFS_APPEND,
  74               .size             = MTDPART_SIZ_FULL,
  75               .mask_flags       = 0
  76         },
  77 };
  78
  79 static struct flash_platform_data p2_flash_data = {
  80         .map_name       = "cfi_probe",
  81         .width          = 2,
  82         .parts          = p2_partitions,
  83         .nr_parts       = ARRAY_SIZE(p2_partitions),
  84 };
  85
  86 static struct resource p2_flash_resource = {
  87         .start          = OMAP_FLASH_0_START,
  88         .end            = OMAP_FLASH_0_START + OMAP_FLASH_0_SIZE - 1,
  89         .flags          = IORESOURCE_MEM,
  90 };
  91
  92 static struct platform_device p2_flash_device = {
  93         .name           = "omapflash",
  94         .id             = 0,
  95         .dev            = {
  96                 .platform_data  = &p2_flash_data,
  97         },
  98         .num_resources  = 1,
  99         .resource       = &p2_flash_resource,
 100 };
 101
 102 static struct platform_device smc91x_device = {
 103         .name           = "smc91x",
 104         .id             = 0,
 105         .num_resources  = ARRAY_SIZE(smc91x_resources),
 106         .resource       = smc91x_resources,
 107 };
 108
 109 static struct platform_device *devices[] __initdata = {
 110         &p2_flash_device,
 111         &smc91x_device,
 112 };
 113
 114 static void __init omap_perseus2_init(void)
 115 {
 116         (void) platform_add_devices(devices, ARRAY_SIZE(devices));
 117 }
 118
 119 static void __init perseus2_init_smc91x(void)
 120 {
 121         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
 122         mdelay(50);
 123         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 124                    H2P2_DBG_FPGA_LAN_RESET);
 125         mdelay(50);
 126 }
 127
 128 void omap_perseus2_init_irq(void)
 129 {
 130         omap_init_irq();
 131         omap_gpio_init();
 132         perseus2_init_smc91x();
 133 }
 134
 135 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 136 static struct map_desc omap_perseus2_io_desc[] __initdata = {
 137         {H2P2_DBG_FPGA_BASE, H2P2_DBG_FPGA_START, H2P2_DBG_FPGA_SIZE,
 138          MT_DEVICE},
 139 };
 140
 141 static void __init omap_perseus2_map_io(void)
 142 {
 143         omap_map_io();
 144         iotable_init(omap_perseus2_io_desc,
 145                      ARRAY_SIZE(omap_perseus2_io_desc));
 146
 147         /* Early, board-dependent init */
 148
 149         /*
 150          * Hold GSM Reset until needed
 151          */
 152         omap_writew(omap_readw(OMAP730_DSP_M_CTL) & ~1, OMAP730_DSP_M_CTL);
 153
 154         /*
 155          * UARTs -> done automagically by 8250 driver
 156          */
 157
 158         /*
 159          * CSx timings, GPIO Mux ... setup
 160          */
 161
 162         /* Flash: CS0 timings setup */
 163         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_0);
 164         omap_writel(0x00000088, OMAP730_FLASH_ACFG_0);
 165
 166         /*
 167          * Ethernet support trough the debug board
 168          * CS1 timings setup
 169          */
 170         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_1);
 171         omap_writel(0x00000000, OMAP730_FLASH_ACFG_1);
 172
 173         /*
 174          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 175          * It is used as the Ethernet controller interrupt
 176          */
 177         omap_writel(omap_readl(OMAP730_IO_CONF_9) & 0x1FFFFFFF, OMAP730_IO_CONF_9);
 178         omap_serial_init(p2_serial_ports);
 179 }
 180
 181 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 182         MAINTAINER("Kevin Hilman <kjh@hilman.org>")
 183         BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
 184         BOOT_PARAMS(0x10000100)
 185         MAPIO(omap_perseus2_map_io)
 186         INITIRQ(omap_perseus2_init_irq)
 187         INIT_MACHINE(omap_perseus2_init)
 188         .timer          = &omap_timer,
 189 MACHINE_END