diff options
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/watchdog/Makefile | 1 | ||||
| -rw-r--r-- | drivers/watchdog/mpc8xx_wdt.c | 21 |
3 files changed, 25 insertions, 3 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 8a66e479ab..dca2c901ac 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -56,9 +56,9 @@ config WDT_SANDBOX bool "Enable Watchdog Timer support for Sandbox" depends on SANDBOX && WDT help - Enable Watchdog Timer support in Sandbox. This is a dummy device that - can be probed and supports all of the methods of WDT, but does not - really do anything. + Enable Watchdog Timer support in Sandbox. This is a dummy device that + can be probed and supports all of the methods of WDT, but does not + really do anything. config WDT_ASPEED bool "Aspeed ast2400/ast2500 watchdog timer support" diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 4b97df3ab6..4fee6dbd1f 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -23,3 +23,4 @@ obj-$(CONFIG_WDT_BCM6345) += bcm6345_wdt.o obj-$(CONFIG_BCM2835_WDT) += bcm2835_wdt.o obj-$(CONFIG_WDT_ORION) += orion_wdt.o obj-$(CONFIG_WDT_CDNS) += cdns_wdt.o +obj-$(CONFIG_MPC8xx_WATCHDOG) += mpc8xx_wdt.o diff --git a/drivers/watchdog/mpc8xx_wdt.c b/drivers/watchdog/mpc8xx_wdt.c new file mode 100644 index 0000000000..ded80c4d6a --- /dev/null +++ b/drivers/watchdog/mpc8xx_wdt.c @@ -0,0 +1,21 @@ +/* + * Copyright 2017 CS Systemes d'Information + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <mpc8xx.h> +#include <asm/cpm_8xx.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +void hw_watchdog_reset(void) +{ + immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR; + + out_be16(&immap->im_siu_conf.sc_swsr, 0x556c); /* write magic1 */ + out_be16(&immap->im_siu_conf.sc_swsr, 0xaa39); /* write magic2 */ +} + |