7a28106509
In order to move Tegra's debug-macro.S to a common location for single zImage, it must not rely on any machine-specific header files such as <mach/iomap.h>. Duplicate the few physical address definitions that debug-macro.S relies upon directly into the file. To avoid tegra_io_desc[] requiring shared knowledge of the UART mapping's virtual address, use a virtual address outside the ranges in tegra_io_desc[]. Call debug_ll_io_init() to propagate the mapping beyond the early pages tables. Signed-off-by: Stephen Warren <swarren@nvidia.com>
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/*
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* arch/arm/mach-tegra/io.c
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*
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* Copyright (C) 2010 Google, Inc.
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*
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* Author:
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* Colin Cross <ccross@google.com>
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* Erik Gilling <konkers@google.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/io.h>
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#include <asm/page.h>
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#include <asm/mach/map.h>
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#include "board.h"
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#include "iomap.h"
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static struct map_desc tegra_io_desc[] __initdata = {
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{
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.virtual = (unsigned long)IO_PPSB_VIRT,
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.pfn = __phys_to_pfn(IO_PPSB_PHYS),
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.length = IO_PPSB_SIZE,
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.type = MT_DEVICE,
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},
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{
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.virtual = (unsigned long)IO_APB_VIRT,
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.pfn = __phys_to_pfn(IO_APB_PHYS),
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.length = IO_APB_SIZE,
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.type = MT_DEVICE,
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},
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{
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.virtual = (unsigned long)IO_CPU_VIRT,
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.pfn = __phys_to_pfn(IO_CPU_PHYS),
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.length = IO_CPU_SIZE,
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.type = MT_DEVICE,
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},
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{
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.virtual = (unsigned long)IO_IRAM_VIRT,
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.pfn = __phys_to_pfn(IO_IRAM_PHYS),
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.length = IO_IRAM_SIZE,
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.type = MT_DEVICE,
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},
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};
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void __init tegra_map_common_io(void)
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{
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debug_ll_io_init();
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iotable_init(tegra_io_desc, ARRAY_SIZE(tegra_io_desc));
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}
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