[PATCH V5 03/63] sp810 Fix: Switch to slow mode before sysctl_soft_reset

[Viresh Kumar]

From: Shiraz Hashim <shiraz.hashim at st.com>

Before resetting system from system controller, switching to slow
mode is required.

Signed-off-by: Shiraz Hashim <shiraz.hashim at st.com>
---
 arch/arm/include/asm/hardware/sp810.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/hardware/sp810.h b/arch/arm/include/asm/hardware/sp810.h
index a101f10..6e3bafd 100644
--- a/arch/arm/include/asm/hardware/sp810.h
+++ b/arch/arm/include/asm/hardware/sp810.h
@@ -52,6 +52,9 @@
 
 static inline void sysctl_soft_reset(void __iomem *base)
 {
+	/* switch to slow mode */
+	writel(0x2, base + SCCTRL);
+
 	/* writing any value to SCSYSSTAT reg will reset system */
 	writel(0, base + SCSYSSTAT);
 }
-- 
1.7.3.4