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rk30: add sram support

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黄涛
2012-02-10 16:30:54 +08:00
parent fc30b5923e
commit 7a0a7dc69d
5 changed files with 17 additions and 16 deletions
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2
arch/arm/kernel/vmlinux.lds.S
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@@ -259,7 +259,7 @@ SECTIONS
__tcm_end = .;
}
#endif
#ifdef CONFIG_ARCH_RK29
#ifdef CONFIG_PLAT_RK
/*
* We align everything to a page boundary so we can
* free it after init has commenced and SRAM contents have

2
arch/arm/mach-rk30/common.c
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@@ -6,6 +6,7 @@
#include <asm/hardware/gic.h>
#include <asm/mach/arch.h>
#include <plat/sram.h>
#include <mach/board.h>
#include <mach/gpio.h>
#include <mach/iomux.h>
@@ -22,6 +23,7 @@ void __init rk30_map_io(void)
{
rk30_map_common_io();
rk29_setup_early_printk();
rk29_sram_init();
rk30_clock_init();
rk30_iomux_init();
}

10
arch/arm/mach-rk30/include/mach/memory.h
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@@ -4,6 +4,14 @@
/*
* Physical DRAM offset.
*/
#define PLAT_PHYS_OFFSET UL(0x60000000)
#define PLAT_PHYS_OFFSET UL(0x60000000)
/*
* SRAM memory whereabouts
*/
#define SRAM_CODE_OFFSET 0xFEF00100
#define SRAM_CODE_END 0xFEF02FFF
#define SRAM_DATA_OFFSET 0xFEF03000
#define SRAM_DATA_END 0xFEF03FFF
#endif

16
arch/arm/plat-rk/include/plat/sram.h
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@@ -1,15 +1,7 @@
/*
* Copyright (C) 2008-2009 ST-Ericsson AB
* License terms: GNU General Public License (GPL) version 2
* TCM memory handling for ARM systems
*
* Author: Linus Walleij <linus.walleij@stericsson.com>
* Author: Rickard Andersson <rickard.andersson@stericsson.com>
*/
#ifndef __PLAT_SRAM_H
#define __PLAT_SRAM_H
#ifndef __ARCH_ARM_MACH_RK29_SRAM_H
#define __ARCH_ARM_MACH_RK29_SRAM_H
#ifdef CONFIG_ARCH_RK29
#ifdef CONFIG_PLAT_RK
/* Tag variables with this */
#define __sramdata __section(.sram.data)
@@ -35,6 +27,6 @@ static inline unsigned long ddr_save_sp(unsigned long new_sp)
#define DDR_SAVE_SP(save_sp) do { save_sp = ddr_save_sp((SRAM_DATA_END&(~7))); } while (0)
#define DDR_RESTORE_SP(save_sp) do { ddr_save_sp(save_sp); } while (0)
#endif
#endif /* CONFIG_PLAT_RK */
#endif

3
arch/arm/plat-rk/sram.c
View File

@@ -14,7 +14,6 @@
#include <asm/tlbflush.h>
#include <asm/cacheflush.h>
#include <mach/memory.h>
#include <mach/rk29_iomap.h>
/* SRAM section definitions from the linker */
@@ -23,7 +22,7 @@ extern char __sram_data_start, __ssram_data, __esram_data;
static struct map_desc sram_code_iomap[] __initdata = {
{
.virtual = SRAM_CODE_OFFSET,
.virtual = SRAM_CODE_OFFSET & PAGE_MASK,
.pfn = __phys_to_pfn(0x0),
.length = 1024*1024,
.type = MT_MEMORY