powerpc: mpc8xx: move watchdog into drivers/watchdog

In preparation of DM watchdog, move basic actions into drivers/watchdog

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index af45cfe..13a7956 100644 (file)
--- 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 f112317..b0e90a0 100644 (file)
--- 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 7608970..d17ad84 100644 (file)
--- 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 4b97df3..4fee6db 100644 (file)
--- 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 (file)
index 0000000..ded80c4
--- /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 */
+}
+