mirror of
https://github.com/torvalds/linux.git
synced 2024-11-11 14:42:24 +00:00
c231d6976a
Add missing io address map entries from datasheet. Add the IRAM area to the statically mapped io regions. Correct the onewire, USB, and statmon addresses Signed-off-by: Colin Cross <ccross@android.com>
85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
/*
|
|
* arch/arm/mach-tegra/io.c
|
|
*
|
|
* Copyright (C) 2010 Google, Inc.
|
|
*
|
|
* Author:
|
|
* Colin Cross <ccross@google.com>
|
|
* Erik Gilling <konkers@google.com>
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/page.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
#include "board.h"
|
|
|
|
static struct map_desc tegra_io_desc[] __initdata = {
|
|
{
|
|
.virtual = IO_PPSB_VIRT,
|
|
.pfn = __phys_to_pfn(IO_PPSB_PHYS),
|
|
.length = IO_PPSB_SIZE,
|
|
.type = MT_DEVICE,
|
|
},
|
|
{
|
|
.virtual = IO_APB_VIRT,
|
|
.pfn = __phys_to_pfn(IO_APB_PHYS),
|
|
.length = IO_APB_SIZE,
|
|
.type = MT_DEVICE,
|
|
},
|
|
{
|
|
.virtual = IO_CPU_VIRT,
|
|
.pfn = __phys_to_pfn(IO_CPU_PHYS),
|
|
.length = IO_CPU_SIZE,
|
|
.type = MT_DEVICE,
|
|
},
|
|
{
|
|
.virtual = IO_IRAM_VIRT,
|
|
.pfn = __phys_to_pfn(IO_IRAM_PHYS),
|
|
.length = IO_IRAM_SIZE,
|
|
.type = MT_DEVICE,
|
|
},
|
|
};
|
|
|
|
void __init tegra_map_common_io(void)
|
|
{
|
|
iotable_init(tegra_io_desc, ARRAY_SIZE(tegra_io_desc));
|
|
}
|
|
|
|
/*
|
|
* Intercept ioremap() requests for addresses in our fixed mapping regions.
|
|
*/
|
|
void __iomem *tegra_ioremap(unsigned long p, size_t size, unsigned int type)
|
|
{
|
|
void __iomem *v = IO_ADDRESS(p);
|
|
if (v == NULL)
|
|
v = __arm_ioremap(p, size, type);
|
|
return v;
|
|
}
|
|
EXPORT_SYMBOL(tegra_ioremap);
|
|
|
|
void tegra_iounmap(volatile void __iomem *addr)
|
|
{
|
|
unsigned long virt = (unsigned long)addr;
|
|
|
|
if (virt >= VMALLOC_START && virt < VMALLOC_END)
|
|
__iounmap(addr);
|
|
}
|
|
EXPORT_SYMBOL(tegra_iounmap);
|