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
  19 #include <asm/hardware.h>
  20 #include <asm/mach-types.h>
  21 #include <asm/mach/arch.h>
  22 #include <asm/mach/map.h>
  23
  24 #include <asm/arch/clocks.h>
  25 #include <asm/arch/gpio.h>
  26 #include <asm/arch/mux.h>
  27 #include <asm/arch/fpga.h>
  28 #include <asm/arch/serial.h>
  29
  30 #include "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 + SZ_4K,
  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 platform_device smc91x_device = {
  48         .name           = "smc91x",
  49         .id             = 0,
  50         .num_resources  = ARRAY_SIZE(smc91x_resources),
  51         .resource       = smc91x_resources,
  52 };
  53
  54 static struct platform_device *devices[] __initdata = {
  55         &smc91x_device,
  56 };
  57
  58 static void __init omap_perseus2_init(void)
  59 {
  60         (void) platform_add_devices(devices, ARRAY_SIZE(devices));
  61 }
  62
  63 static void __init perseus2_init_smc91x(void)
  64 {
  65         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
  66         mdelay(50);
  67         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
  68                    H2P2_DBG_FPGA_LAN_RESET);
  69         mdelay(50);
  70 }
  71
  72 void omap_perseus2_init_irq(void)
  73 {
  74         omap_init_irq();
  75         omap_gpio_init();
  76         perseus2_init_smc91x();
  77 }
  78
  79 /* Only FPGA needs to be mapped here. All others are done with ioremap */
  80 static struct map_desc omap_perseus2_io_desc[] __initdata = {
  81         {H2P2_DBG_FPGA_BASE, H2P2_DBG_FPGA_START, H2P2_DBG_FPGA_SIZE,
  82          MT_DEVICE},
  83 };
  84
  85 static void __init omap_perseus2_map_io(void)
  86 {
  87         omap_map_io();
  88         iotable_init(omap_perseus2_io_desc,
  89                      ARRAY_SIZE(omap_perseus2_io_desc));
  90
  91         /* Early, board-dependent init */
  92
  93         /*
  94          * Hold GSM Reset until needed
  95          */
  96         omap_writew(omap_readw(OMAP730_DSP_M_CTL) & ~1, OMAP730_DSP_M_CTL);
  97
  98         /*
  99          * UARTs -> done automagically by 8250 driver
 100          */
 101
 102         /*
 103          * CSx timings, GPIO Mux ... setup
 104          */
 105
 106         /* Flash: CS0 timings setup */
 107         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_0);
 108         omap_writel(0x00000088, OMAP730_FLASH_ACFG_0);
 109
 110         /*
 111          * Ethernet support trough the debug board
 112          * CS1 timings setup
 113          */
 114         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_1);
 115         omap_writel(0x00000000, OMAP730_FLASH_ACFG_1);
 116
 117         /*
 118          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 119          * It is used as the Ethernet controller interrupt
 120          */
 121         omap_writel(omap_readl(OMAP730_IO_CONF_9) & 0x1FFFFFFF, OMAP730_IO_CONF_9);
 122         omap_serial_init(p2_serial_ports);
 123 }
 124
 125 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 126         MAINTAINER("Kevin Hilman <kjh@hilman.org>")
 127         BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
 128         BOOT_PARAMS(0x10000100)
 129         MAPIO(omap_perseus2_map_io)
 130         INITIRQ(omap_perseus2_init_irq)
 131         INIT_MACHINE(omap_perseus2_init)
 132         .timer          = &omap_timer,
 133 MACHINE_END