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authorTom Rini <trini@ti.com>2014-08-04 13:35:50 -0400
committerTom Rini <trini@ti.com>2014-08-06 08:38:18 -0400
commitdcdb61a084bd3840d0987a5d01ae506c11efca1b (patch)
tree576fed73a7425aff29b2833ea7a132a1fc373c43 /arch
parentaa159e681ec22a19ee4dd68ad4ec08b748e14d10 (diff)
parente3917b21c05776b41663bdfcc7666aca11a381a0 (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-mpc85xx
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/cpu/mpc85xx/cpu.c8
-rw-r--r--arch/powerpc/cpu/mpc85xx/interrupts.c2
-rw-r--r--arch/powerpc/include/asm/processor.h5
-rw-r--r--arch/powerpc/lib/board.c3
4 files changed, 17 insertions, 1 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index 684d400..6274f92 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/arch/powerpc/cpu/mpc85xx/interrupts.c b/arch/powerpc/cpu/mpc85xx/interrupts.c
index a36a4af..daf46a9 100644
--- a/arch/powerpc/cpu/mpc85xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc85xx/interrupts.c
@@ -42,7 +42,7 @@ int interrupt_init_cpu(unsigned int *decrementer_count)
*decrementer_count = get_tbclk() / CONFIG_SYS_HZ;
/* PIE is same as DIE, dec interrupt enable */
- mtspr(SPRN_TCR, TCR_PIE);
+ mtspr(SPRN_TCR, mfspr(SPRN_TCR) | TCR_PIE);
#ifdef CONFIG_INTERRUPTS
pic->iivpr1 = 0x810001; /* 50220 enable ecm interrupts */
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index 2445acd..1b98e0f 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -378,11 +378,16 @@
#else
#define SPRN_TCR 0x154 /* Book E Timer Control Register */
#endif /* CONFIG_BOOKE */
+#ifdef CONFIG_E500MC
+#define TCR_WP(x) (((64-x)&0x3)<<30)| \
+ (((64-x)&0x3c)<<15) /* WDT Period 2^x clocks*/
+#else
#define TCR_WP(x) (((x)&0x3)<<30) /* WDT Period */
#define WP_2_17 0 /* 2^17 clocks */
#define WP_2_21 1 /* 2^21 clocks */
#define WP_2_25 2 /* 2^25 clocks */
#define WP_2_29 3 /* 2^29 clocks */
+#endif /* CONFIG_E500 */
#define TCR_WRC(x) (((x)&0x3)<<28) /* WDT Reset Control */
#define WRC_NONE 0 /* No reset will occur */
#define WRC_CORE 1 /* Core reset will occur */
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c
index 50eb820..0296205 100644
--- a/arch/powerpc/lib/board.c
+++ b/arch/powerpc/lib/board.c
@@ -226,6 +226,9 @@ static int init_func_spi(void)
#if defined(CONFIG_WATCHDOG)
int init_func_watchdog_init(void)
{
+#if defined(CONFIG_MPC85xx)
+ init_85xx_watchdog();
+#endif
puts(" Watchdog enabled\n");
WATCHDOG_RESET();
return 0;