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rk29: add ddr.h

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黄涛
2011-03-22 12:05:50 +08:00
parent 401817083f
commit b96e2b20b2
3 changed files with 31 additions and 5 deletions
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27
arch/arm/mach-rk29/include/mach/ddr.h Normal file
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@@ -0,0 +1,27 @@
/* arch/arm/mach-rk29/include/mach/ddr.h
*
* Copyright (C) 2011 ROCKCHIP, Inc.
*
* 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.
*
*/
#ifndef __ARCH_ARM_MACH_RK29_DDR_H
#define __ARCH_ARM_MACH_RK29_DDR_H
#include <linux/types.h>
#include <mach/sram.h>
void __sramfunc ddr_suspend(void);
void __sramfunc ddr_resume(void);
void __sramlocalfunc delayus(uint32_t us);
void __sramfunc ddr_change_freq(uint32_t nMHz);
#endif

3
arch/arm/mach-rk29/include/mach/sram.h
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@@ -7,6 +7,8 @@
* Author: Rickard Andersson <rickard.andersson@stericsson.com>
*/
#ifndef __ARCH_ARM_MACH_RK29_SRAM_H
#define __ARCH_ARM_MACH_RK29_SRAM_H
#ifdef CONFIG_ARCH_RK29
/* Tag variables with this */
@@ -34,4 +36,5 @@ static inline unsigned long ddr_save_sp(unsigned long new_sp)
#define DDR_RESTORE_SP(save_sp) do { ddr_save_sp(save_sp); } while (0)
#endif
#endif

6
arch/arm/mach-rk29/pm.c
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@@ -24,6 +24,7 @@
#include <mach/system.h>
#include <mach/sram.h>
#include <mach/gpio.h>
#include <mach/ddr.h>
#define cru_readl(offset) readl(RK29_CRU_BASE + offset)
#define cru_writel(v, offset) do { writel(v, RK29_CRU_BASE + offset); readl(RK29_CRU_BASE + offset); } while (0)
@@ -44,11 +45,6 @@ static inline void delay_300us(void)
LOOP(300 * LOOPS_PER_USEC);
}
extern void ddr_suspend(void);
extern void ddr_resume(void);
extern void delayus(uint32_t us);
extern void ddr_change_freq(uint32_t nMHz);
#ifdef DEBUG
static void/* inline*/ __sramfunc printch(char byte)
{