linux/arch/arm/mach-omap2/io.c
Imre Deak b7cc6d46b4 ARM: OMAP: FB sync with N800 tree (support for dynamic SRAM allocations)
- in addition to fixed FB regions - as passed by the bootloader -
  allow dynamic allocations
- do some more checking against overlapping / reserved regions
- move the FB specific parts out from sram.c to fb.c

Signed-off-by: Imre Deak <imre.deak@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-09 10:39:14 +01:00

85 lines
1.9 KiB
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>
*
* 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 <asm/arch/mux.h>
#include <asm/arch/omapfb.h>
extern void omap_sram_init(void);
extern int omap2_clk_init(void);
extern void omap2_check_revision(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 = 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();
gpmc_init();
}