From 0f8062b25b31988bf62f166aa5b988add8454e42 Mon Sep 17 00:00:00 2001
From: "Boschung, Rainer" <Rainer.Boschung@keymile.com>
Date: Tue, 3 Jun 2014 09:05:14 +0200
Subject: [PATCH] mpc85xx: watchdog initialisation added
Function to inititialize the cpu watchdog added.
Signed-off-by: Rainer Boschung <rainer.boschung@keymile.com>
[York Sun: Add prototype in watchdog.h]
Reviewed-by: York Sun <yorksun@freescale.com>
---
arch/powerpc/cpu/mpc85xx/cpu.c | 8 ++++++++
include/watchdog.h | 4 ++++
2 files changed, 12 insertions(+)
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index 684d4007e4..6274f929dd 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -310,6 +310,14 @@ __weak unsigned long get_tbclk (void)
#if defined(CONFIG_WATCHDOG)
+#define WATCHDOG_MASK (TCR_WP(63) | TCR_WRC(3) | TCR_WIE)
+void
+init_85xx_watchdog(void)
+{
+ mtspr(SPRN_TCR, (mfspr(SPRN_TCR) & ~WATCHDOG_MASK) |
+ TCR_WP(CONFIG_WATCHDOG_PRESC) | TCR_WRC(CONFIG_WATCHDOG_RC));
+}
+
void
reset_85xx_watchdog(void)
{
diff --git a/include/watchdog.h b/include/watchdog.h
index aacacb970a..bd0a8d6b19 100644
--- a/include/watchdog.h
+++ b/include/watchdog.h
@@ -95,4 +95,8 @@ int init_func_watchdog_reset(void);
#if defined(CONFIG_HW_WATCHDOG) && !defined(__ASSEMBLY__)
void hw_watchdog_init(void);
#endif
+
+#if defined(CONFIG_MPC85xx) && !defined(__ASSEMBLY__)
+ void init_85xx_watchdog(void);
+#endif
#endif /* _WATCHDOG_H_ */
--
2.39.5