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

   1 /*
   2  * linux/arch/arm/mach-omap/omap-perseus2.c
   3  *
   4  * Modified from omap-generic.c
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/device.h>
  14
  15 #include <asm/hardware.h>
  16 #include <asm/mach/arch.h>
  17 #include <asm/mach/map.h>
  18
  19 #include <asm/arch/clocks.h>
  20 #include <asm/arch/gpio.h>
  21 #include <asm/arch/mux.h>
  22
  23 #include <asm/arch/omap-perseus2.h>
  24
  25 #include "common.h"
  26
  27 void omap_perseus2_init_irq(void)
  28 {
  29         omap_init_irq();
  30 }
  31
  32 static struct resource smc91x_resources[] = {
  33         [0] = {
  34                 .start  = OMAP730_FPGA_ETHR_START,      /* Physical */
  35                 .end    = OMAP730_FPGA_ETHR_START + SZ_4K,
  36                 .flags  = IORESOURCE_MEM,
  37         },
  38         [1] = {
  39                 .start  = 0,
  40                 .end    = 0,
  41                 .flags  = INT_ETHER,
  42         },
  43 };
  44
  45 static struct platform_device smc91x_device = {
  46         .name           = "smc91x",
  47         .id             = 0,
  48         .num_resources  = ARRAY_SIZE(smc91x_resources),
  49         .resource       = smc91x_resources,
  50 };
  51
  52 static struct platform_device *devices[] __initdata = {
  53         &smc91x_device,
  54 };
  55
  56 static void __init omap_perseus2_init(void)
  57 {
  58         if (!machine_is_omap_perseus2())
  59                 return;
  60
  61         (void) platform_add_devices(devices, ARRAY_SIZE(devices));
  62 }
  63
  64 /* Only FPGA needs to be mapped here. All others are done with ioremap */
  65 static struct map_desc omap_perseus2_io_desc[] __initdata = {
  66         {OMAP730_FPGA_BASE, OMAP730_FPGA_START, OMAP730_FPGA_SIZE,
  67          MT_DEVICE},
  68 };
  69
  70 static void __init omap_perseus2_map_io(void)
  71 {
  72         omap_map_io();
  73         iotable_init(omap_perseus2_io_desc,
  74                      ARRAY_SIZE(omap_perseus2_io_desc));
  75
  76         /* Early, board-dependent init */
  77
  78         /*
  79          * Hold GSM Reset until needed
  80          */
  81         *DSP_M_CTL &= ~1;
  82
  83         /*
  84          * UARTs -> done automagically by 8250 driver
  85          */
  86
  87         /*
  88          * CSx timings, GPIO Mux ... setup
  89          */
  90
  91         /* Flash: CS0 timings setup */
  92         *((volatile __u32 *) OMAP_FLASH_CFG_0) = 0x0000fff3;
  93         *((volatile __u32 *) OMAP_FLASH_ACFG_0) = 0x00000088;
  94
  95         /*
  96          * Ethernet support trough the debug board
  97          * CS1 timings setup
  98          */
  99         *((volatile __u32 *) OMAP_FLASH_CFG_1) = 0x0000fff3;
 100         *((volatile __u32 *) OMAP_FLASH_ACFG_1) = 0x00000000;
 101
 102         /*
 103          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 104          * It is used as the Ethernet controller interrupt
 105          */
 106         *((volatile __u32 *) PERSEUS2_IO_CONF_9) &= 0x1FFFFFFF;
 107 }
 108
 109 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 110         MAINTAINER("Kevin Hilman <k-hilman@ti.com>")
 111         BOOT_MEM(0x10000000, 0xe0000000, 0xe0000000)
 112         BOOT_PARAMS(0x10000100)
 113         MAPIO(omap_perseus2_map_io)
 114         INITIRQ(omap_perseus2_init_irq)
 115         INIT_MACHINE(omap_perseus2_init)
 116 MACHINE_END