From: Banajit Goswami <banajit.g@xxxxxxxxxxx> This patch moves the definitions of watchdog timer device from plat-s3c24xx to plat-samsung. This will enable all Samsung S3C and S5P series SoC's to use common WDT device definition. And adds HAVE_S3C2410_WATCHDOG for selecting in each machine without modifying Kconfig in drivers directory. Signed-off-by: Banajit Goswami <banajit.g@xxxxxxxxxxx> Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx> --- arch/arm/Kconfig | 1 + arch/arm/mach-s3c2410/include/mach/map.h | 1 + arch/arm/plat-s3c24xx/devs.c | 26 ------------------- arch/arm/plat-samsung/Kconfig | 6 ++++ arch/arm/plat-samsung/Makefile | 1 + arch/arm/plat-samsung/dev-wdt.c | 40 ++++++++++++++++++++++++++++++ drivers/watchdog/Kconfig | 10 ++++--- 7 files changed, 55 insertions(+), 30 deletions(-) create mode 100644 arch/arm/plat-samsung/dev-wdt.c diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 3f8718f..8e2bb6b 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -651,6 +651,7 @@ config ARCH_S3C2410 select GENERIC_GPIO select ARCH_HAS_CPUFREQ select HAVE_CLK + select HAVE_S3C2410_WATCHDOG help Samsung S3C2410X CPU based systems, such as the Simtec Electronics BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or diff --git a/arch/arm/mach-s3c2410/include/mach/map.h b/arch/arm/mach-s3c2410/include/mach/map.h index f07d680..16fbc3c 100644 --- a/arch/arm/mach-s3c2410/include/mach/map.h +++ b/arch/arm/mach-s3c2410/include/mach/map.h @@ -111,6 +111,7 @@ #define S3C_PA_USBHOST S3C2410_PA_USBHOST #define S3C_PA_HSMMC0 S3C2443_PA_HSMMC #define S3C_PA_HSMMC1 S3C2416_PA_HSMMC0 +#define S3C_PA_WDT S3C2410_PA_WATCHDOG #define S3C_PA_NAND S3C24XX_PA_NAND #endif /* __ASM_ARCH_MAP_H */ diff --git a/arch/arm/plat-s3c24xx/devs.c b/arch/arm/plat-s3c24xx/devs.c index 5858373..452e184 100644 --- a/arch/arm/plat-s3c24xx/devs.c +++ b/arch/arm/plat-s3c24xx/devs.c @@ -234,32 +234,6 @@ void __init s3c24xx_udc_set_platdata(struct s3c2410_udc_mach_info *pd) } } - -/* Watchdog */ - -static struct resource s3c_wdt_resource[] = { - [0] = { - .start = S3C24XX_PA_WATCHDOG, - .end = S3C24XX_PA_WATCHDOG + S3C24XX_SZ_WATCHDOG - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_WDT, - .end = IRQ_WDT, - .flags = IORESOURCE_IRQ, - } - -}; - -struct platform_device s3c_device_wdt = { - .name = "s3c2410-wdt", - .id = -1, - .num_resources = ARRAY_SIZE(s3c_wdt_resource), - .resource = s3c_wdt_resource, -}; - -EXPORT_SYMBOL(s3c_device_wdt); - /* IIS */ static struct resource s3c_iis_resource[] = { diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig index 287e6f7..72dae49 100644 --- a/arch/arm/plat-samsung/Kconfig +++ b/arch/arm/plat-samsung/Kconfig @@ -185,6 +185,12 @@ config S3C_DEV_USB_HSOTG help Compile in platform device definition for USB high-speed OtG +config S3C_DEV_WDT + bool + default y if ARCH_S3C2410 + help + Complie in platform device definition for Watchdog Timer + config S3C_DEV_NAND bool help diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index 0ad820a..0a92369 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -40,6 +40,7 @@ obj-$(CONFIG_S3C_DEV_FB) += dev-fb.o obj-y += dev-uart.o obj-$(CONFIG_S3C_DEV_USB_HOST) += dev-usb.o obj-$(CONFIG_S3C_DEV_USB_HSOTG) += dev-usb-hsotg.o +obj-$(CONFIG_S3C_DEV_WDT) += dev-wdt.o obj-$(CONFIG_S3C_DEV_NAND) += dev-nand.o # DMA support diff --git a/arch/arm/plat-samsung/dev-wdt.c b/arch/arm/plat-samsung/dev-wdt.c new file mode 100644 index 0000000..5efca87 --- /dev/null +++ b/arch/arm/plat-samsung/dev-wdt.c @@ -0,0 +1,40 @@ +/* linux/arch/arm/plat-samsung/dev-wdt.c + * + * Copyright (c) 2004 Simtec Electronics + * Ben Dooks <ben@xxxxxxxxxxxx> + * + * S3C series device definition for the watchdog timer + * + * 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/platform_device.h> + +#include <mach/irqs.h> +#include <mach/map.h> + +#include <plat/devs.h> + +static struct resource s3c_wdt_resource[] = { + [0] = { + .start = S3C_PA_WDT, + .end = S3C_PA_WDT + SZ_1M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_WDT, + .end = IRQ_WDT, + .flags = IORESOURCE_IRQ, + } +}; + +struct platform_device s3c_device_wdt = { + .name = "s3c2410-wdt", + .id = -1, + .num_resources = ARRAY_SIZE(s3c_wdt_resource), + .resource = s3c_wdt_resource, +}; +EXPORT_SYMBOL(s3c_device_wdt); diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 0bf5020..d52118f 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -145,13 +145,15 @@ config KS8695_WATCHDOG Watchdog timer embedded into KS8695 processor. This will reboot your system when the timeout is reached. +config HAVE_S3C2410_WATCHDOG + bool + config S3C2410_WATCHDOG tristate "S3C2410 Watchdog" - depends on ARCH_S3C2410 + depends on HAVE_S3C2410_WATCHDOG help - Watchdog timer block in the Samsung S3C2410 chips. This will - reboot the system when the timer expires with the watchdog - enabled. + Watchdog timer block in the Samsung SoCs. This will reboot + the system when the timer expires with the watchdog enabled. The driver is limited by the speed of the system's PCLK signal, so with reasonably fast systems (PCLK around 50-66MHz) -- 1.6.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
 |