arch/arm/mach-omap1/board-perseus2.c

   1 /*
   2  * linux/arch/arm/mach-omap1/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 #include <asm/arch/common.h>
  31
  32 static struct resource smc91x_resources[] = {
  33         [0] = {
  34                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
  35                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
  36                 .flags  = IORESOURCE_MEM,
  37         },
  38         [1] = {
  39                 .start  = INT_730_MPU_EXT_NIRQ,
  40                 .end    = 0,
  41                 .flags  = IORESOURCE_IRQ,
  42         },
  43 };
  44
  45 static int __initdata p2_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 0};
  46
  47 static struct mtd_partition p2_partitions[] = {
  48         /* bootloader (U-Boot, etc) in first sector */
  49         {
  50               .name             = "bootloader",
  51               .offset           = 0,
  52               .size             = SZ_128K,
  53               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  54         },
  55         /* bootloader params in the next sector */
  56         {
  57               .name             = "params",
  58               .offset           = MTDPART_OFS_APPEND,
  59               .size             = SZ_128K,
  60               .mask_flags       = 0,
  61         },
  62         /* kernel */
  63         {
  64               .name             = "kernel",
  65               .offset           = MTDPART_OFS_APPEND,
  66               .size             = SZ_2M,
  67               .mask_flags       = 0
  68         },
  69         /* rest of flash is a file system */
  70         {
  71               .name             = "rootfs",
  72               .offset           = MTDPART_OFS_APPEND,
  73               .size             = MTDPART_SIZ_FULL,
  74               .mask_flags       = 0
  75         },
  76 };
  77
  78 static struct flash_platform_data p2_flash_data = {
  79         .map_name       = "cfi_probe",
  80         .width          = 2,
  81         .parts          = p2_partitions,
  82         .nr_parts       = ARRAY_SIZE(p2_partitions),
  83 };
  84
  85 static struct resource p2_flash_resource = {
  86         .start          = OMAP_FLASH_0_START,
  87         .end            = OMAP_FLASH_0_START + OMAP_FLASH_0_SIZE - 1,
  88         .flags          = IORESOURCE_MEM,
  89 };
  90
  91 static struct platform_device p2_flash_device = {
  92         .name           = "omapflash",
  93         .id             = 0,
  94         .dev            = {
  95                 .platform_data  = &p2_flash_data,
  96         },
  97         .num_resources  = 1,
  98         .resource       = &p2_flash_resource,
  99 };
 100
 101 static struct platform_device smc91x_device = {
 102         .name           = "smc91x",
 103         .id             = 0,
 104         .num_resources  = ARRAY_SIZE(smc91x_resources),
 105         .resource       = smc91x_resources,
 106 };
 107
 108 static struct platform_device *devices[] __initdata = {
 109         &p2_flash_device,
 110         &smc91x_device,
 111 };
 112
 113 static void __init omap_perseus2_init(void)
 114 {
 115         (void) platform_add_devices(devices, ARRAY_SIZE(devices));
 116 }
 117
 118 static void __init perseus2_init_smc91x(void)
 119 {
 120         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
 121         mdelay(50);
 122         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 123                    H2P2_DBG_FPGA_LAN_RESET);
 124         mdelay(50);
 125 }
 126
 127 void omap_perseus2_init_irq(void)
 128 {
 129         omap_init_irq();
 130         omap_gpio_init();
 131         perseus2_init_smc91x();
 132 }
 133
 134 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 135 static struct map_desc omap_perseus2_io_desc[] __initdata = {
 136         {H2P2_DBG_FPGA_BASE, H2P2_DBG_FPGA_START, H2P2_DBG_FPGA_SIZE,
 137          MT_DEVICE},
 138 };
 139
 140 static void __init omap_perseus2_map_io(void)
 141 {
 142         omap_map_common_io();
 143         iotable_init(omap_perseus2_io_desc,
 144                      ARRAY_SIZE(omap_perseus2_io_desc));
 145
 146         /* Early, board-dependent init */
 147
 148         /*
 149          * Hold GSM Reset until needed
 150          */
 151         omap_writew(omap_readw(OMAP730_DSP_M_CTL) & ~1, OMAP730_DSP_M_CTL);
 152
 153         /*
 154          * UARTs -> done automagically by 8250 driver
 155          */
 156
 157         /*
 158          * CSx timings, GPIO Mux ... setup
 159          */
 160
 161         /* Flash: CS0 timings setup */
 162         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_0);
 163         omap_writel(0x00000088, OMAP730_FLASH_ACFG_0);
 164
 165         /*
 166          * Ethernet support trough the debug board
 167          * CS1 timings setup
 168          */
 169         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_1);
 170         omap_writel(0x00000000, OMAP730_FLASH_ACFG_1);
 171
 172         /*
 173          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 174          * It is used as the Ethernet controller interrupt
 175          */
 176         omap_writel(omap_readl(OMAP730_IO_CONF_9) & 0x1FFFFFFF, OMAP730_IO_CONF_9);
 177         omap_serial_init(p2_serial_ports);
 178 }
 179
 180 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 181         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
 182         .phys_ram       = 0x10000000,
 183         .phys_io        = 0xfff00000,
 184         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 185         .boot_params    = 0x10000100,
 186         .map_io         = omap_perseus2_map_io,
 187         .init_irq       = omap_perseus2_init_irq,
 188         .init_machine   = omap_perseus2_init,
 189         .timer          = &omap_timer,
 190 MACHINE_END