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[PATCH] ARM: 2764/1: S3C24XX - Common PM functions for Simtec boards

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Patch from Ben Dooks

All current S3C24XX implementations from Simtec share the same
requirements for suspend/resume information.
This patch moves the save code out of the mach-bast.c file,
and into it's own so it can be shared by all the current
Simtec S3C24XX implementations.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ben Dooks 2005-06-29 11:09:15 +01:00 committed by Russell King
parent 99a0616bcd
commit f705b1aed7
4 changed files with 75 additions and 35 deletions
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5
arch/arm/mach-s3c2410/Kconfig
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@ -154,6 +154,11 @@ config S3C2410_PM_CHECK_CHUNKSIZE
the CRC data block will take more memory, but wil identify any the CRC data block will take more memory, but wil identify any
faults with better precision. faults with better precision.
config PM_SIMTEC
bool
depends on PM && (ARCH_BAST || MACH_VR1000)
default y
config S3C2410_LOWLEVEL_UART_PORT config S3C2410_LOWLEVEL_UART_PORT
int "S3C2410 UART to use for low-level messages" int "S3C2410 UART to use for low-level messages"
default 0 default 0

1
arch/arm/mach-s3c2410/Makefile
View File

@ -18,6 +18,7 @@ obj-$(CONFIG_S3C2410_DMA) += dma.o
# Power Management support # Power Management support
obj-$(CONFIG_PM) += pm.o sleep.o obj-$(CONFIG_PM) += pm.o sleep.o
obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o
# S3C2440 support # S3C2440 support

39
arch/arm/mach-s3c2410/mach-bast.c
View File

@ -27,6 +27,7 @@
* 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA * 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA
* 14-Mar-2006 BJD Updated for __iomem changes * 14-Mar-2006 BJD Updated for __iomem changes
* 22-Jun-2006 BJD Added DM9000 platform information * 22-Jun-2006 BJD Added DM9000 platform information
* 28-Jun-2006 BJD Moved pm functionality out to common code
*/ */
#include <linux/kernel.h> #include <linux/kernel.h>
@ -67,7 +68,6 @@
#include "devs.h" #include "devs.h"
#include "cpu.h" #include "cpu.h"
#include "usb-simtec.h" #include "usb-simtec.h"
#include "pm.h"
#define COPYRIGHT ", (c) 2004-2005 Simtec Electronics" #define COPYRIGHT ", (c) 2004-2005 Simtec Electronics"
@ -405,44 +405,13 @@ void __init bast_map_io(void)
usb_simtec_init(); usb_simtec_init();
} }
void __init bast_init_irq(void)
{
s3c24xx_init_irq();
}
#ifdef CONFIG_PM
/* bast_init_machine
*
* enable the power management functions for the EB2410ITX
*/
static __init void bast_init_machine(void)
{
unsigned long gstatus4;
printk(KERN_INFO "BAST Power Manangement" COPYRIGHT "\n");
gstatus4 = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30;
gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28;
gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK);
__raw_writel(gstatus4, S3C2410_GSTATUS4);
s3c2410_pm_init();
}
#else
#define bast_init_machine NULL
#endif
MACHINE_START(BAST, "Simtec-BAST") MACHINE_START(BAST, "Simtec-BAST")
MAINTAINER("Ben Dooks <ben@simtec.co.uk>") MAINTAINER("Ben Dooks <ben@simtec.co.uk>")
BOOT_MEM(S3C2410_SDRAM_PA, S3C2410_PA_UART, (u32)S3C24XX_VA_UART) BOOT_MEM(S3C2410_SDRAM_PA, S3C2410_PA_UART, (u32)S3C24XX_VA_UART)
BOOT_PARAMS(S3C2410_SDRAM_PA + 0x100) BOOT_PARAMS(S3C2410_SDRAM_PA + 0x100)
MAPIO(bast_map_io)
INITIRQ(bast_init_irq) .map_io = bast_map_io,
.init_machine = bast_init_machine, .init_irq = s3c24xx_init_irq,
.timer = &s3c24xx_timer, .timer = &s3c24xx_timer,
MACHINE_END MACHINE_END

65
arch/arm/mach-s3c2410/pm-simtec.c Normal file
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@ -0,0 +1,65 @@
/* linux/arch/arm/mach-s3c2410/pm-simtec.c
*
* Copyright (c) 2004 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* http://armlinux.simtec.co.uk/
*
* Power Management helpers for Simtec S3C24XX implementations
*
* 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/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/device.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/arch/map.h>
#include <asm/arch/regs-serial.h>
#include <asm/arch/regs-gpio.h>
#include <asm/arch/regs-mem.h>
#include <asm/mach-types.h>
#include "pm.h"
#define COPYRIGHT ", (c) 2005 Simtec Electronics"
/* pm_simtec_init
*
* enable the power management functions
*/
static __init int pm_simtec_init(void)
{
unsigned long gstatus4;
/* check which machine we are running on */
if (!machine_is_bast() && !machine_is_vr1000())
return 0;
printk(KERN_INFO "Simtec Board Power Manangement" COPYRIGHT "\n");
gstatus4 = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30;
gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28;
gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK);
__raw_writel(gstatus4, S3C2410_GSTATUS4);
return s3c2410_pm_init();
}
arch_initcall(pm_simtec_init);