In preparation of DM watchdog, move basic actions into drivers/watchdog
Signed-off-by: Christophe Leroy christophe.leroy@c-s.fr --- arch/powerpc/Kconfig | 2 +- arch/powerpc/cpu/mpc8xx/Kconfig | 4 ++++ arch/powerpc/cpu/mpc8xx/cpu.c | 12 ------------ drivers/watchdog/Makefile | 1 + drivers/watchdog/mpc8xx_wdt.c | 21 +++++++++++++++++++++ 5 files changed, 27 insertions(+), 13 deletions(-) create mode 100644 drivers/watchdog/mpc8xx_wdt.c
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index af45cfe8498..13a79560b24 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -34,7 +34,7 @@ config MPC8xx bool "MPC8xx" select BOARD_EARLY_INIT_F imply CMD_REGINFO - imply HW_WATCHDOG + imply MPC8xx_WATCHDOG
endchoice
diff --git a/arch/powerpc/cpu/mpc8xx/Kconfig b/arch/powerpc/cpu/mpc8xx/Kconfig index f1123173765..b0e90a0f203 100644 --- a/arch/powerpc/cpu/mpc8xx/Kconfig +++ b/arch/powerpc/cpu/mpc8xx/Kconfig @@ -25,6 +25,10 @@ config MPC885
endchoice
+config MPC8xx_WATCHDOG + bool "Watchdog" + select HW_WATCHDOG + config 8xx_GCLK_FREQ int "CPU GCLK Frequency"
diff --git a/arch/powerpc/cpu/mpc8xx/cpu.c b/arch/powerpc/cpu/mpc8xx/cpu.c index 7608970e3b1..d17ad846949 100644 --- a/arch/powerpc/cpu/mpc8xx/cpu.c +++ b/arch/powerpc/cpu/mpc8xx/cpu.c @@ -270,18 +270,6 @@ unsigned long get_tbclk(void) return oscclk / 16; }
-/* ------------------------------------------------------------------------- */ - -#if defined(CONFIG_HW_WATCHDOG) -void hw_watchdog_reset(void) -{ - immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR; - - out_be16(&immr->im_siu_conf.sc_swsr, 0x556c); /* write magic1 */ - out_be16(&immr->im_siu_conf.sc_swsr, 0xaa39); /* write magic2 */ -} -#endif /* CONFIG_WATCHDOG */ - /* * Initializes on-chip ethernet controllers. * to override, implement board_eth_init() diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index ab6a6b79e1d..6c605e87e85 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -22,3 +22,4 @@ obj-$(CONFIG_WDT_ASPEED) += ast_wdt.o obj-$(CONFIG_WDT_BCM6345) += bcm6345_wdt.o obj-$(CONFIG_BCM2835_WDT) += bcm2835_wdt.o obj-$(CONFIG_WDT_ORION) += orion_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 00000000000..ded80c4d6a9 --- /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 */ +} +