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linux-next/arch/arm/mach-omap1/io.c
Arnd Bergmann df80442d1e Merge branch 'depends/rmk/memory_h' into next/cleanup2
Theis resolves lots of simple conflicts between the omap
cleanup and the mach/memory.h removal series.

Conflicts:
	arch/arm/mach-imx/mach-cpuimx27.c
	arch/arm/mach-omap1/board-ams-delta.c
	arch/arm/mach-omap1/board-generic.c
	arch/arm/mach-omap1/board-h2.c
	arch/arm/mach-omap1/board-h3.c
	arch/arm/mach-omap1/board-nokia770.c
	arch/arm/mach-omap1/board-osk.c
	arch/arm/mach-omap1/board-palmte.c
	arch/arm/mach-omap1/board-palmtt.c
	arch/arm/mach-omap1/board-palmz71.c
	arch/arm/mach-omap1/board-sx1.c
	arch/arm/mach-omap1/board-voiceblue.c
	arch/arm/mach-omap1/io.c
	arch/arm/mach-omap2/board-generic.c
	arch/arm/mach-omap2/io.c
	arch/arm/plat-omap/io.c

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-11-01 13:47:27 +01:00

178 lines
3.7 KiB
C

/*
* linux/arch/arm/mach-omap1/io.c
*
* OMAP1 I/O mapping code
*
* 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 <linux/io.h>
#include <asm/tlb.h>
#include <asm/mach/map.h>
#include <plat/mux.h>
#include <plat/tc.h>
#include "clock.h"
extern void omap_check_revision(void);
/*
* The machine specific code may provide the extra mapping besides the
* default mapping provided here.
*/
static struct map_desc omap_io_desc[] __initdata = {
{
.virtual = OMAP1_IO_VIRT,
.pfn = __phys_to_pfn(OMAP1_IO_PHYS),
.length = OMAP1_IO_SIZE,
.type = MT_DEVICE
}
};
#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850)
static struct map_desc omap7xx_io_desc[] __initdata = {
{
.virtual = OMAP7XX_DSP_BASE,
.pfn = __phys_to_pfn(OMAP7XX_DSP_START),
.length = OMAP7XX_DSP_SIZE,
.type = MT_DEVICE
}, {
.virtual = OMAP7XX_DSPREG_BASE,
.pfn = __phys_to_pfn(OMAP7XX_DSPREG_START),
.length = OMAP7XX_DSPREG_SIZE,
.type = MT_DEVICE
}
};
#endif
#ifdef CONFIG_ARCH_OMAP15XX
static struct map_desc omap1510_io_desc[] __initdata = {
{
.virtual = OMAP1510_DSP_BASE,
.pfn = __phys_to_pfn(OMAP1510_DSP_START),
.length = OMAP1510_DSP_SIZE,
.type = MT_DEVICE
}, {
.virtual = OMAP1510_DSPREG_BASE,
.pfn = __phys_to_pfn(OMAP1510_DSPREG_START),
.length = OMAP1510_DSPREG_SIZE,
.type = MT_DEVICE
}
};
#endif
#if defined(CONFIG_ARCH_OMAP16XX)
static struct map_desc omap16xx_io_desc[] __initdata = {
{
.virtual = OMAP16XX_DSP_BASE,
.pfn = __phys_to_pfn(OMAP16XX_DSP_START),
.length = OMAP16XX_DSP_SIZE,
.type = MT_DEVICE
}, {
.virtual = OMAP16XX_DSPREG_BASE,
.pfn = __phys_to_pfn(OMAP16XX_DSPREG_START),
.length = OMAP16XX_DSPREG_SIZE,
.type = MT_DEVICE
}
};
#endif
/*
* Maps common IO regions for omap1
*/
static void __init omap1_map_common_io(void)
{
iotable_init(omap_io_desc, ARRAY_SIZE(omap_io_desc));
}
#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850)
void __init omap7xx_map_io(void)
{
omap1_map_common_io();
iotable_init(omap7xx_io_desc, ARRAY_SIZE(omap7xx_io_desc));
}
#endif
#ifdef CONFIG_ARCH_OMAP15XX
void __init omap15xx_map_io(void)
{
omap1_map_common_io();
iotable_init(omap1510_io_desc, ARRAY_SIZE(omap1510_io_desc));
}
#endif
#if defined(CONFIG_ARCH_OMAP16XX)
void __init omap16xx_map_io(void)
{
omap1_map_common_io();
iotable_init(omap16xx_io_desc, ARRAY_SIZE(omap16xx_io_desc));
}
#endif
/*
* Common low-level hardware init for omap1.
*/
void omap1_init_early(void)
{
omap_check_revision();
omap_ioremap_init();
/* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort
* on a Posted Write in the TIPB Bridge".
*/
omap_writew(0x0, MPU_PUBLIC_TIPB_CNTL);
omap_writew(0x0, MPU_PRIVATE_TIPB_CNTL);
/* Must init clocks early to assure that timer interrupt works
*/
omap1_clk_init();
omap1_mux_init();
omap_init_consistent_dma_size();
}
/*
* NOTE: Please use ioremap + __raw_read/write where possible instead of these
*/
u8 omap_readb(u32 pa)
{
return __raw_readb(OMAP1_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_readb);
u16 omap_readw(u32 pa)
{
return __raw_readw(OMAP1_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_readw);
u32 omap_readl(u32 pa)
{
return __raw_readl(OMAP1_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_readl);
void omap_writeb(u8 v, u32 pa)
{
__raw_writeb(v, OMAP1_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_writeb);
void omap_writew(u16 v, u32 pa)
{
__raw_writew(v, OMAP1_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_writew);
void omap_writel(u32 v, u32 pa)
{
__raw_writel(v, OMAP1_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_writel);