Logo Search packages:      
Sourcecode: linux version File versions

io.c

/*
 * linux/arch/arm/mach-omap2/io.c
 *
 * OMAP2 I/O mapping code
 *
 * Copyright (C) 2005 Nokia Corporation
 * Author: Juha Yrjölä <juha.yrjola@nokia.com>
 * Updated map desc to add 2430 support : <x0khasim@ti.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>

#include <asm/tlb.h>
#include <asm/io.h>

#include <asm/mach/map.h>

#include <mach/mux.h>
#include <mach/omapfb.h>

extern void omap_sram_init(void);
extern int omap2_clk_init(void);
extern void omap2_check_revision(void);
extern void omap2_init_memory(void);
extern void gpmc_init(void);
extern void omapfb_reserve_sdram(void);

/*
 * The machine specific code may provide the extra mapping besides the
 * default mapping provided here.
 */
static struct map_desc omap2_io_desc[] __initdata = {
      {
            .virtual    = L3_24XX_VIRT,
            .pfn        = __phys_to_pfn(L3_24XX_PHYS),
            .length           = L3_24XX_SIZE,
            .type       = MT_DEVICE
      },
      {
            .virtual        = L4_24XX_VIRT,
            .pfn            = __phys_to_pfn(L4_24XX_PHYS),
            .length         = L4_24XX_SIZE,
            .type           = MT_DEVICE
      },
#ifdef CONFIG_ARCH_OMAP2430
      {
            .virtual    = L4_WK_243X_VIRT,
            .pfn        = __phys_to_pfn(L4_WK_243X_PHYS),
            .length           = L4_WK_243X_SIZE,
            .type       = MT_DEVICE
      },
      {
            .virtual    = OMAP243X_GPMC_VIRT,
            .pfn        = __phys_to_pfn(OMAP243X_GPMC_PHYS),
            .length           = OMAP243X_GPMC_SIZE,
            .type       = MT_DEVICE
      },
#endif
      {
            .virtual    = DSP_MEM_24XX_VIRT,
            .pfn        = __phys_to_pfn(DSP_MEM_24XX_PHYS),
            .length           = DSP_MEM_24XX_SIZE,
            .type       = MT_DEVICE
      },
      {
            .virtual    = DSP_IPI_24XX_VIRT,
            .pfn        = __phys_to_pfn(DSP_IPI_24XX_PHYS),
            .length           = DSP_IPI_24XX_SIZE,
            .type       = MT_DEVICE
      },
      {
            .virtual    = DSP_MMU_24XX_VIRT,
            .pfn        = __phys_to_pfn(DSP_MMU_24XX_PHYS),
            .length           = DSP_MMU_24XX_SIZE,
            .type       = MT_DEVICE
      }
};

void __init omap2_map_common_io(void)
{
      iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));

      /* Normally devicemaps_init() would flush caches and tlb after
       * mdesc->map_io(), but we must also do it here because of the CPU
       * revision check below.
       */
      local_flush_tlb_all();
      flush_cache_all();

      omap2_check_revision();
      omap_sram_init();
      omapfb_reserve_sdram();
}

void __init omap2_init_common_hw(void)
{
      omap2_mux_init();
      omap2_clk_init();
/*
 * Need to Fix this for 2430
 */
#ifndef CONFIG_ARCH_OMAP2430
      omap2_init_memory();
#endif
      gpmc_init();
}

Generated by  Doxygen 1.6.0   Back to index