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/tc.h>
  28 #include <asm/arch/gpio.h>
  29 #include <asm/arch/mux.h>
  30 #include <asm/arch/fpga.h>
  31 #include <asm/arch/common.h>
  32 #include <asm/arch/board.h>
  33
  34 static struct resource smc91x_resources[] = {
  35         [0] = {
  36                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
  37                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
  38                 .flags  = IORESOURCE_MEM,
  39         },
  40         [1] = {
  41                 .start  = INT_730_MPU_EXT_NIRQ,
  42                 .end    = 0,
  43                 .flags  = IORESOURCE_IRQ,
  44         },
  45 };
  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_CS0_PHYS,
  87         .end            = OMAP_CS0_PHYS + SZ_32M - 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 struct omap_uart_config perseus2_uart_config __initdata = {
 114         .enabled_uarts = ((1 << 0) | (1 << 1)),
 115 };
 116
 117 static struct omap_board_config_kernel perseus2_config[] = {
 118         { OMAP_TAG_UART,        &perseus2_uart_config },
 119 };
 120
 121 static void __init omap_perseus2_init(void)
 122 {
 123         (void) platform_add_devices(devices, ARRAY_SIZE(devices));
 124
 125         omap_board_config = perseus2_config;
 126         omap_board_config_size = ARRAY_SIZE(perseus2_config);
 127         omap_serial_init();
 128 }
 129
 130 static void __init perseus2_init_smc91x(void)
 131 {
 132         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
 133         mdelay(50);
 134         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 135                    H2P2_DBG_FPGA_LAN_RESET);
 136         mdelay(50);
 137 }
 138
 139 void omap_perseus2_init_irq(void)
 140 {
 141         omap_init_irq();
 142         omap_gpio_init();
 143         perseus2_init_smc91x();
 144 }
 145 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 146 static struct map_desc omap_perseus2_io_desc[] __initdata = {
 147         {H2P2_DBG_FPGA_BASE, H2P2_DBG_FPGA_START, H2P2_DBG_FPGA_SIZE,
 148          MT_DEVICE},
 149 };
 150
 151 static void __init omap_perseus2_map_io(void)
 152 {
 153         omap_map_common_io();
 154         iotable_init(omap_perseus2_io_desc,
 155                      ARRAY_SIZE(omap_perseus2_io_desc));
 156
 157         /* Early, board-dependent init */
 158
 159         /*
 160          * Hold GSM Reset until needed
 161          */
 162         omap_writew(omap_readw(OMAP730_DSP_M_CTL) & ~1, OMAP730_DSP_M_CTL);
 163
 164         /*
 165          * UARTs -> done automagically by 8250 driver
 166          */
 167
 168         /*
 169          * CSx timings, GPIO Mux ... setup
 170          */
 171
 172         /* Flash: CS0 timings setup */
 173         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_0);
 174         omap_writel(0x00000088, OMAP730_FLASH_ACFG_0);
 175
 176         /*
 177          * Ethernet support trough the debug board
 178          * CS1 timings setup
 179          */
 180         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_1);
 181         omap_writel(0x00000000, OMAP730_FLASH_ACFG_1);
 182
 183         /*
 184          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 185          * It is used as the Ethernet controller interrupt
 186          */
 187         omap_writel(omap_readl(OMAP730_IO_CONF_9) & 0x1FFFFFFF, OMAP730_IO_CONF_9);
 188 }
 189
 190 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 191         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
 192         .phys_ram       = 0x10000000,
 193         .phys_io        = 0xfff00000,
 194         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 195         .boot_params    = 0x10000100,
 196         .map_io         = omap_perseus2_map_io,
 197         .init_irq       = omap_perseus2_init_irq,
 198         .init_machine   = omap_perseus2_init,
 199         .timer          = &omap_timer,
 200 MACHINE_END