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authorHeiko Stuebner <heiko@sntech.de>2012-05-12 16:22:18 +0900
committerKukjin Kim <kgene.kim@samsung.com>2012-05-12 16:22:18 +0900
commitde7bfff1b251395be9a229ee14191105d8d1385d (patch)
tree38fb42e1a376754d8584fd72daf04c110d29d1b3 /arch/arm/plat-s3c24xx
parent618ae08a8804cc545e692f12293e3dd165c4dd77 (diff)
ARM: S3C24XX: move common power-management code to mach-s3c24xx
This is the basic power-management code used by all s3c24xx machines. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-s3c24xx')
-rw-r--r--arch/arm/plat-s3c24xx/Makefile3
-rw-r--r--arch/arm/plat-s3c24xx/irq-pm.c95
-rw-r--r--arch/arm/plat-s3c24xx/pm.c149
-rw-r--r--arch/arm/plat-s3c24xx/sleep.S84
4 files changed, 0 insertions, 331 deletions
diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index 1e3126a2902..a07bbc933b4 100644
--- a/arch/arm/plat-s3c24xx/Makefile
+++ b/arch/arm/plat-s3c24xx/Makefile
@@ -21,9 +21,6 @@ obj-$(CONFIG_CPU_FREQ_S3C24XX_DEBUGFS) += cpu-freq-debugfs.o
# Architecture dependent builds
-obj-$(CONFIG_PM) += pm.o
-obj-$(CONFIG_PM) += irq-pm.o
-obj-$(CONFIG_PM) += sleep.o
obj-$(CONFIG_S3C2410_CLOCK) += s3c2410-clock.o
obj-$(CONFIG_S3C24XX_DMA) += dma.o
obj-$(CONFIG_S3C2410_IOTIMING) += s3c2410-iotiming.o
diff --git a/arch/arm/plat-s3c24xx/irq-pm.c b/arch/arm/plat-s3c24xx/irq-pm.c
deleted file mode 100644
index 0efb2e2848c..00000000000
--- a/arch/arm/plat-s3c24xx/irq-pm.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/* linux/arch/arm/plat-s3c24xx/irq-om.c
- *
- * Copyright (c) 2003-2004 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- * http://armlinux.simtec.co.uk/
- *
- * S3C24XX - IRQ PM code
- *
- * 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/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-
-#include <plat/cpu.h>
-#include <plat/pm.h>
-#include <plat/irq.h>
-
-#include <asm/irq.h>
-
-/* state for IRQs over sleep */
-
-/* default is to allow for EINT0..EINT15, and IRQ_RTC as wakeup sources
- *
- * set bit to 1 in allow bitfield to enable the wakeup settings on it
-*/
-
-unsigned long s3c_irqwake_intallow = 1L << (IRQ_RTC - IRQ_EINT0) | 0xfL;
-unsigned long s3c_irqwake_eintallow = 0x0000fff0L;
-
-int s3c_irq_wake(struct irq_data *data, unsigned int state)
-{
- unsigned long irqbit = 1 << (data->irq - IRQ_EINT0);
-
- if (!(s3c_irqwake_intallow & irqbit))
- return -ENOENT;
-
- printk(KERN_INFO "wake %s for irq %d\n",
- state ? "enabled" : "disabled", data->irq);
-
- if (!state)
- s3c_irqwake_intmask |= irqbit;
- else
- s3c_irqwake_intmask &= ~irqbit;
-
- return 0;
-}
-
-static struct sleep_save irq_save[] = {
- SAVE_ITEM(S3C2410_INTMSK),
- SAVE_ITEM(S3C2410_INTSUBMSK),
-};
-
-/* the extint values move between the s3c2410/s3c2440 and the s3c2412
- * so we use an array to hold them, and to calculate the address of
- * the register at run-time
-*/
-
-static unsigned long save_extint[3];
-static unsigned long save_eintflt[4];
-static unsigned long save_eintmask;
-
-int s3c24xx_irq_suspend(void)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(save_extint); i++)
- save_extint[i] = __raw_readl(S3C24XX_EXTINT0 + (i*4));
-
- for (i = 0; i < ARRAY_SIZE(save_eintflt); i++)
- save_eintflt[i] = __raw_readl(S3C24XX_EINFLT0 + (i*4));
-
- s3c_pm_do_save(irq_save, ARRAY_SIZE(irq_save));
- save_eintmask = __raw_readl(S3C24XX_EINTMASK);
-
- return 0;
-}
-
-void s3c24xx_irq_resume(void)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(save_extint); i++)
- __raw_writel(save_extint[i], S3C24XX_EXTINT0 + (i*4));
-
- for (i = 0; i < ARRAY_SIZE(save_eintflt); i++)
- __raw_writel(save_eintflt[i], S3C24XX_EINFLT0 + (i*4));
-
- s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save));
- __raw_writel(save_eintmask, S3C24XX_EINTMASK);
-}
diff --git a/arch/arm/plat-s3c24xx/pm.c b/arch/arm/plat-s3c24xx/pm.c
deleted file mode 100644
index 60627e63a25..00000000000
--- a/arch/arm/plat-s3c24xx/pm.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/* linux/arch/arm/plat-s3c24xx/pm.c
- *
- * Copyright (c) 2004-2006 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S3C24XX Power Manager (Suspend-To-RAM) support
- *
- * See Documentation/arm/Samsung-S3C24XX/Suspend.txt for more information
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Parts based on arch/arm/mach-pxa/pm.c
- *
- * Thanks to Dimitry Andric for debugging
-*/
-
-#include <linux/init.h>
-#include <linux/suspend.h>
-#include <linux/errno.h>
-#include <linux/time.h>
-#include <linux/gpio.h>
-#include <linux/interrupt.h>
-#include <linux/serial_core.h>
-#include <linux/io.h>
-
-#include <plat/regs-serial.h>
-#include <mach/regs-clock.h>
-#include <mach/regs-gpio.h>
-#include <mach/regs-mem.h>
-#include <mach/regs-irq.h>
-
-#include <asm/mach/time.h>
-
-#include <plat/gpio-cfg.h>
-#include <plat/pm.h>
-
-#define PFX "s3c24xx-pm: "
-
-static struct sleep_save core_save[] = {
- SAVE_ITEM(S3C2410_LOCKTIME),
- SAVE_ITEM(S3C2410_CLKCON),
-
- /* we restore the timings here, with the proviso that the board
- * brings the system up in an slower, or equal frequency setting
- * to the original system.
- *
- * if we cannot guarantee this, then things are going to go very
- * wrong here, as we modify the refresh and both pll settings.
- */
-
- SAVE_ITEM(S3C2410_BWSCON),
- SAVE_ITEM(S3C2410_BANKCON0),
- SAVE_ITEM(S3C2410_BANKCON1),
- SAVE_ITEM(S3C2410_BANKCON2),
- SAVE_ITEM(S3C2410_BANKCON3),
- SAVE_ITEM(S3C2410_BANKCON4),
- SAVE_ITEM(S3C2410_BANKCON5),
-
-#ifndef CONFIG_CPU_FREQ
- SAVE_ITEM(S3C2410_CLKDIVN),
- SAVE_ITEM(S3C2410_MPLLCON),
- SAVE_ITEM(S3C2410_REFRESH),
-#endif
- SAVE_ITEM(S3C2410_UPLLCON),
- SAVE_ITEM(S3C2410_CLKSLOW),
-};
-
-static struct sleep_save misc_save[] = {
- SAVE_ITEM(S3C2410_DCLKCON),
-};
-
-/* s3c_pm_check_resume_pin
- *
- * check to see if the pin is configured correctly for sleep mode, and
- * make any necessary adjustments if it is not
-*/
-
-static void s3c_pm_check_resume_pin(unsigned int pin, unsigned int irqoffs)
-{
- unsigned long irqstate;
- unsigned long pinstate;
- int irq = gpio_to_irq(pin);
-
- if (irqoffs < 4)
- irqstate = s3c_irqwake_intmask & (1L<<irqoffs);
- else
- irqstate = s3c_irqwake_eintmask & (1L<<irqoffs);
-
- pinstate = s3c_gpio_getcfg(pin);
-
- if (!irqstate) {
- if (pinstate == S3C2410_GPIO_IRQ)
- S3C_PMDBG("Leaving IRQ %d (pin %d) as is\n", irq, pin);
- } else {
- if (pinstate == S3C2410_GPIO_IRQ) {
- S3C_PMDBG("Disabling IRQ %d (pin %d)\n", irq, pin);
- s3c_gpio_cfgpin(pin, S3C2410_GPIO_INPUT);
- }
- }
-}
-
-/* s3c_pm_configure_extint
- *
- * configure all external interrupt pins
-*/
-
-void s3c_pm_configure_extint(void)
-{
- int pin;
-
- /* for each of the external interrupts (EINT0..EINT15) we
- * need to check wether it is an external interrupt source,
- * and then configure it as an input if it is not
- */
-
- for (pin = S3C2410_GPF(0); pin <= S3C2410_GPF(7); pin++) {
- s3c_pm_check_resume_pin(pin, pin - S3C2410_GPF(0));
- }
-
- for (pin = S3C2410_GPG(0); pin <= S3C2410_GPG(7); pin++) {
- s3c_pm_check_resume_pin(pin, (pin - S3C2410_GPG(0))+8);
- }
-}
-
-
-void s3c_pm_restore_core(void)
-{
- s3c_pm_do_restore_core(core_save, ARRAY_SIZE(core_save));
- s3c_pm_do_restore(misc_save, ARRAY_SIZE(misc_save));
-}
-
-void s3c_pm_save_core(void)
-{
- s3c_pm_do_save(misc_save, ARRAY_SIZE(misc_save));
- s3c_pm_do_save(core_save, ARRAY_SIZE(core_save));
-}
-
diff --git a/arch/arm/plat-s3c24xx/sleep.S b/arch/arm/plat-s3c24xx/sleep.S
deleted file mode 100644
index c56612569b4..00000000000
--- a/arch/arm/plat-s3c24xx/sleep.S
+++ /dev/null
@@ -1,84 +0,0 @@
-/* linux/arch/arm/plat-s3c24xx/sleep.S
- *
- * Copyright (c) 2004 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S3C2410 Power Manager (Suspend-To-RAM) support
- *
- * Based on PXA/SA1100 sleep code by:
- * Nicolas Pitre, (c) 2002 Monta Vista Software Inc
- * Cliff Brake, (c) 2001
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-*/
-
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-#include <mach/hardware.h>
-#include <mach/map.h>
-
-#include <mach/regs-gpio.h>
-#include <mach/regs-clock.h>
-#include <mach/regs-mem.h>
-#include <plat/regs-serial.h>
-
-/* CONFIG_DEBUG_RESUME is dangerous if your bootloader does not
- * reset the UART configuration, only enable if you really need this!
-*/
-//#define CONFIG_DEBUG_RESUME
-
- .text
-
- /* sleep magic, to allow the bootloader to check for an valid
- * image to resume to. Must be the first word before the
- * s3c_cpu_resume entry.
- */
-
- .word 0x2bedf00d
-
- /* s3c_cpu_resume
- *
- * resume code entry for bootloader to call
- */
-
-ENTRY(s3c_cpu_resume)
- mov r0, #PSR_I_BIT | PSR_F_BIT | SVC_MODE
- msr cpsr_c, r0
-
- @@ load UART to allow us to print the two characters for
- @@ resume debug
-
- mov r2, #S3C24XX_PA_UART & 0xff000000
- orr r2, r2, #S3C24XX_PA_UART & 0xff000
-
-#if 0
- /* SMDK2440 LED set */
- mov r14, #S3C24XX_PA_GPIO
- ldr r12, [ r14, #0x54 ]
- bic r12, r12, #3<<4
- orr r12, r12, #1<<7
- str r12, [ r14, #0x54 ]
-#endif
-
-#ifdef CONFIG_DEBUG_RESUME
- mov r3, #'L'
- strb r3, [ r2, #S3C2410_UTXH ]
-1001:
- ldrb r14, [ r3, #S3C2410_UTRSTAT ]
- tst r14, #S3C2410_UTRSTAT_TXE
- beq 1001b
-#endif /* CONFIG_DEBUG_RESUME */
-
- b cpu_resume