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watchdog: mpc8xx_wdt: Watchdog driver and macros cleanup

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With the generic watchdog driver now implemented, this patch removes
some legacy stuff from the MPC8xx watchdog driver and its Kconfig
integration. CONFIG_MPC8xx_WATCHDOG is completely removed and
hw_watchdog_reset() is made static, as the watchdog will now get
serviced via the DM infrastructure if enabled via CONFIG_WATCHDOG.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
This commit is contained in:
Stefan Roese 2019-04-11 15:58:46 +02:00
parent 782ef57edc
commit f3729ba6e7
5 changed files with 6 additions and 9 deletions
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2
arch/powerpc/Kconfig
View file

@ -35,7 +35,7 @@ config MPC8xx
bool "MPC8xx"
select BOARD_EARLY_INIT_F
imply CMD_REGINFO
imply MPC8xx_WATCHDOG
imply WDT_MPC8xx
endchoice

6
arch/powerpc/cpu/mpc8xx/Kconfig
View file

@ -25,9 +25,9 @@ config MPC885
endchoice
config MPC8xx_WATCHDOG
bool "Watchdog"
select HW_WATCHDOG
#config MPC8xx_WATCHDOG
# bool "Watchdog"
# select HW_WATCHDOG
config 8xx_GCLK_FREQ
int "CPU GCLK Frequency"

1
drivers/watchdog/Kconfig
View file

@ -151,7 +151,6 @@ config WDT_MT7621
config WDT_MPC8xx
bool "MPC8xx watchdog timer support"
depends on WDT && MPC8xx
select CONFIG_MPC8xx_WATCHDOG
help
Select this to enable mpc8xx watchdog timer

2
drivers/watchdog/Makefile
View file

@ -24,6 +24,6 @@ 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-$(CONFIG_MPC8xx_WATCHDOG) += mpc8xx_wdt.o
obj-$(CONFIG_WDT_MPC8xx) += mpc8xx_wdt.o
obj-$(CONFIG_WDT_MT7621) += mt7621_wdt.o
obj-$(CONFIG_WDT_MTK) += mtk_wdt.o

4
drivers/watchdog/mpc8xx_wdt.c
View file

@ -10,7 +10,7 @@
#include <asm/cpm_8xx.h>
#include <asm/io.h>
void hw_watchdog_reset(void)
static void hw_watchdog_reset(void)
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
@ -18,7 +18,6 @@ void hw_watchdog_reset(void)
out_be16(&immap->im_siu_conf.sc_swsr, 0xaa39); /* write magic2 */
}
#ifdef CONFIG_WDT_MPC8xx
static int mpc8xx_wdt_start(struct udevice *dev, u64 timeout, ulong flags)
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
@ -66,4 +65,3 @@ U_BOOT_DRIVER(wdt_mpc8xx) = {
.of_match = mpc8xx_wdt_ids,
.ops = &mpc8xx_wdt_ops,
};
#endif /* CONFIG_WDT_MPC8xx */