On Jun 12, 2007, at 3:59 AM, Domen Puncer wrote:
> Driver for internal mpc5200 watchdog on general purpose timer 0.
> For IPB clock of 132 MHz the maximum timeout is about 32 seconds.
>
>
> Signed-off-by: Domen Puncer <[EMAIL PROTECTED]>
Should really be submitted to the watchdog maintainer if you want
this in the kernel
> ---
> Hi!
>
> I also have some generic GPT code that one could extend with
> what he/she needs. Mail me if you'd find it useful.
>
>
> drivers/char/watchdog/Kconfig | 4
> drivers/char/watchdog/Makefile | 1
> drivers/char/watchdog/mpc5200_wdt.c | 257 ++++++++++++++++++++++++
> ++++++++++++
> 3 files changed, 262 insertions(+)
>
> Index: work-powerpc.git/drivers/char/watchdog/Kconfig
> ===================================================================
> --- work-powerpc.git.orig/drivers/char/watchdog/Kconfig
> +++ work-powerpc.git/drivers/char/watchdog/Kconfig
> @@ -521,6 +521,10 @@ config 8xx_WDT
> tristate "MPC8xx Watchdog Timer"
> depends on 8xx
>
> +config MPC5200_WDT
> + tristate "MPC5200 Watchdog Timer"
> + depends on PPC_MPC52xx
> +
> config 83xx_WDT
> tristate "MPC83xx Watchdog Timer"
> depends on PPC_83xx
> Index: work-powerpc.git/drivers/char/watchdog/Makefile
> ===================================================================
> --- work-powerpc.git.orig/drivers/char/watchdog/Makefile
> +++ work-powerpc.git/drivers/char/watchdog/Makefile
> @@ -64,6 +64,7 @@ obj-$(CONFIG_SBC_EPX_C3_WATCHDOG) += sbc
>
> # PowerPC Architecture
> obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o
> +obj-$(CONFIG_MPC5200_WDT) += mpc5200_wdt.o
> obj-$(CONFIG_83xx_WDT) += mpc83xx_wdt.o
> obj-$(CONFIG_MV64X60_WDT) += mv64x60_wdt.o
> obj-$(CONFIG_BOOKE_WDT) += booke_wdt.o
> Index: work-powerpc.git/drivers/char/watchdog/mpc5200_wdt.c
> ===================================================================
> --- /dev/null
> +++ work-powerpc.git/drivers/char/watchdog/mpc5200_wdt.c
> @@ -0,0 +1,257 @@
> +#include <linux/init.h>
> +#include <linux/module.h>
> +#include <linux/miscdevice.h>
> +#include <linux/watchdog.h>
> +#include <linux/io.h>
> +#include <asm/of_platform.h>
> +#include <asm/uaccess.h>
> +#include <asm/mpc52xx.h>
> +
> +
> +#define GPT_MODE_WDT (1<<15)
> +#define GPT_MODE_CE (1<<12)
> +#define GPT_MODE_MS_TIMER (0x4)
> +
> +
> +struct mpc5200_wdt {
> + unsigned count; /* timer ticks before watchdog kicks in */
> + long ipb_freq;
> + struct miscdevice miscdev;
> + struct resource mem;
> + struct mpc52xx_gpt __iomem *regs;
> + struct mpc52xx_gpt saved_regs;
saved_regs isn't used anywhere
[snip]
- k
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