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authorShiraz Hashim <shiraz.hashim@st.com>2011-02-16 07:40:29 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-02-21 19:29:24 +0000
commitb8272a61c16decd4c8627fc1181bdd174c922c3f (patch)
treed539562c4fa117e151ffb7867cefff5c016d940f /arch/arm/include/asm
parentac1556b37e9b06a41d7691dca0d50a28210488f9 (diff)
ARM: 6722/1: SPEAr: sp810: switch to slow mode before reset
In sysctl_soft_reset(), switch to slow mode before resetting the system via the system controller. This is required. Reviewed-by: Stanley Miao <stanley.miao@windriver.com> Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm')
-rw-r--r--arch/arm/include/asm/hardware/sp810.h3
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 721847dc68a..e0d1c0cfa54 100644
--- a/arch/arm/include/asm/hardware/sp810.h
+++ b/arch/arm/include/asm/hardware/sp810.h
@@ -58,6 +58,9 @@
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);
}