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authorColin Tuckley <colin.tuckley@arm.com>2010-01-11 11:09:15 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-01-11 15:39:21 +0000
commit4c9f8be7dab831c78b5f491739fc5cd01f2efb03 (patch)
treefa023e7c6a1d540b645f0d4d237f710a413058a9 /arch/arm/mach-realview/realview_pba8.c
parent62a8c5bcb547c0aca1c3af810695dfb9b25e5351 (diff)
ARM: 5873/1: ARM: Fix the reset logic for ARM RealView boards
Extend the patch from Philby John to the other "RealView" boards. Rename the constants and offsets to reflect their actual functions. Cc: Philby John <pjohn@in.mvista.com> Signed-off-by: Colin Tuckley <colin.tuckley@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-realview/realview_pba8.c')
-rw-r--r--arch/arm/mach-realview/realview_pba8.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/mach-realview/realview_pba8.c b/arch/arm/mach-realview/realview_pba8.c
index fe861e96c56..fe4e25c4201 100644
--- a/arch/arm/mach-realview/realview_pba8.c
+++ b/arch/arm/mach-realview/realview_pba8.c
@@ -272,6 +272,20 @@ static struct sys_timer realview_pba8_timer = {
.init = realview_pba8_timer_init,
};
+static void realview_pba8_reset(char mode)
+{
+ void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
+ void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
+
+ /*
+ * To reset, we hit the on-board reset register
+ * in the system FPGA
+ */
+ __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
+ __raw_writel(0x0000, reset_ctrl);
+ __raw_writel(0x0004, reset_ctrl);
+}
+
static void __init realview_pba8_init(void)
{
int i;
@@ -291,6 +305,7 @@ static void __init realview_pba8_init(void)
#ifdef CONFIG_LEDS
leds_event = realview_leds_event;
#endif
+ realview_reset = realview_pba8_reset;
}
MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8")