diff options
Diffstat (limited to 'drivers/watchdog/mpc8xx_wdt.c')
| -rw-r--r-- | drivers/watchdog/mpc8xx_wdt.c | 21 |
1 files changed, 21 insertions, 0 deletions
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 */ +} + |