obj-$(CONFIG_CPU_S3C2410) += s3c2410.o
obj-$(CONFIG_CPU_S3C2410) += s3c2410-gpio.o
+obj-$(CONFIG_CPU_S3C2410) += s3c2410-irq.o
obj-$(CONFIG_CPU_S3C2410_DMA) += s3c2410-dma.o
# Power Management support
}
}
+#ifdef CONFIG_PM
+
+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(struct sys_device *dev, pm_message_t state)
+{
+ 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));
+
+ s3c2410_pm_do_save(irq_save, ARRAY_SIZE(irq_save));
+ save_eintmask = __raw_readl(S3C24XX_EINTMASK);
+
+ return 0;
+}
+
+int s3c24xx_irq_resume(struct sys_device *dev)
+{
+ 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));
+
+ s3c2410_pm_do_restore(irq_save, ARRAY_SIZE(irq_save));
+ __raw_writel(save_eintmask, S3C24XX_EINTMASK);
+
+ return 0;
+}
+
+#else
+#define s3c24xx_irq_suspend NULL
+#define s3c24xx_irq_resume NULL
+#endif
+
/* s3c24xx_init_irq
*
* Initialise S3C2410 IRQ system
/* linux/arch/arm/mach-s3c2410/pm.c
*
- * Copyright (c) 2004 Simtec Electronics
+ * Copyright (c) 2004,2006 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
- * S3C2410 Power Manager (Suspend-To-RAM) support
+ * S3C24XX Power Manager (Suspend-To-RAM) support
*
* See Documentation/arm/Samsung-S3C24XX/Suspend.txt for more information
*
* Parts based on arch/arm/mach-pxa/pm.c
*
* Thanks to Dimitry Andric for debugging
- *
- * Modifications:
- * 10-Mar-2005 LCVR Changed S3C2410_VA_UART to S3C24XX_VA_UART
*/
#include <linux/init.h>
SAVE_ITEM(S3C2410_REFRESH),
};
-/* this lot should be really saved by the IRQ code */
-static struct sleep_save irq_save[] = {
- SAVE_ITEM(S3C2410_EXTINT0),
- SAVE_ITEM(S3C2410_EXTINT1),
- SAVE_ITEM(S3C2410_EXTINT2),
- SAVE_ITEM(S3C2410_EINFLT0),
- SAVE_ITEM(S3C2410_EINFLT1),
- SAVE_ITEM(S3C2410_EINFLT2),
- SAVE_ITEM(S3C2410_EINFLT3),
- SAVE_ITEM(S3C2410_EINTMASK),
- SAVE_ITEM(S3C2410_INTMSK)
-};
-
static struct sleep_save gpio_save[] = {
SAVE_ITEM(S3C2410_GPACON),
SAVE_ITEM(S3C2410_GPADAT),
/* save all necessary core registers not covered by the drivers */
s3c2410_pm_do_save(gpio_save, ARRAY_SIZE(gpio_save));
- s3c2410_pm_do_save(irq_save, ARRAY_SIZE(irq_save));
s3c2410_pm_do_save(core_save, ARRAY_SIZE(core_save));
s3c2410_pm_do_save(uart_save, ARRAY_SIZE(uart_save));
s3c2410_pm_do_restore_core(core_save, ARRAY_SIZE(core_save));
s3c2410_pm_do_restore(gpio_save, ARRAY_SIZE(gpio_save));
- s3c2410_pm_do_restore(irq_save, ARRAY_SIZE(irq_save));
s3c2410_pm_do_restore(uart_save, ARRAY_SIZE(uart_save));
s3c2410_pm_debug_init();
extern void s3c2410_pm_do_save(struct sleep_save *ptr, int count);
extern void s3c2410_pm_do_restore(struct sleep_save *ptr, int count);
+
+#ifdef CONFIG_PM
+extern int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state);
+extern int s3c24xx_irq_resume(struct sys_device *dev);
+#else
+#define s3c24xx_irq_suspend NULL
+#define s3c24xx_irq_resume NULL
+#endif
--- /dev/null
+/* linux/arch/arm/mach-s3c2410/s3c2410-irq.c
+ *
+ * Copyright (c) 2006 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * 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/init.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/ptrace.h>
+#include <linux/sysdev.h>
+
+#include "cpu.h"
+#include "pm.h"
+
+static int s3c2410_irq_add(struct sys_device *sysdev)
+{
+ return 0;
+}
+
+static struct sysdev_driver s3c2410_irq_driver = {
+ .add = s3c2410_irq_add,
+ .suspend = s3c24xx_irq_suspend,
+ .resume = s3c24xx_irq_resume,
+};
+
+static int s3c2410_irq_init(void)
+{
+ return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_irq_driver);
+}
+
+arch_initcall(s3c2410_irq_init);
#include "cpu.h"
#include "irq.h"
+#include "pm.h"
/* the s3c2412 changes the behaviour of IRQ_EINT0 through IRQ_EINT3 by
* having them turn up in both the INT* and the EINT* registers. Whilst
static struct sysdev_driver s3c2412_irq_driver = {
.add = s3c2412_irq_add,
+ .suspend = s3c24xx_irq_suspend,
+ .resume = s3c24xx_irq_resume,
};
static int s3c2412_irq_init(void)
}
static struct sysdev_driver s3c2440_irq_driver = {
- .add = s3c2440_irq_add,
+ .add = s3c2440_irq_add,
};
static int s3c2440_irq_init(void)
}
static struct sysdev_driver s3c2440_irq_driver = {
- .add = s3c244x_irq_add,
+ .add = s3c244x_irq_add,
+ .suspend = s3c24xx_irq_suspend,
+ .resume = s3c24xx_irq_resume,
};
static int s3c2440_irq_init(void)
arch_initcall(s3c2440_irq_init);
static struct sysdev_driver s3c2442_irq_driver = {
- .add = s3c244x_irq_add,
+ .add = s3c244x_irq_add,
+ .suspend = s3c24xx_irq_suspend,
+ .resume = s3c24xx_irq_resume,
};
+
static int s3c2442_irq_init(void)
{
return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_irq_driver);
projects / platform / kernel / linux-rpi.git / commitdiff