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authorPhilby John <pjohn@in.mvista.com>2009-10-28 19:09:12 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-11-01 14:19:34 +0000
commit426fcd2a351e4bf662fee9fa2cf2603a48223164 (patch)
tree8abcf507bc2d7d4e285073add55729ceeddb5c44 /arch/arm/mach-realview/realview_pb11mp.c
parentdf71dfd4ca01130f98d9dbfab76c440d72a177c6 (diff)
ARM: 5774/1: Fix Realview ARM1176PB board reboot
This is the fix for proper reboot of Realview ARM1176PB board when issuing the reboot command. Setting the eighth bit of control register SYS_RESETCTL to 1 to force a soft reset. arch_reset() is modified for realview machines to call machine specific reset function pointers. Signed-off-by: Philby John <pjohn@in.mvista.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_pb11mp.c')
-rw-r--r--arch/arm/mach-realview/realview_pb11mp.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/mach-realview/realview_pb11mp.c b/arch/arm/mach-realview/realview_pb11mp.c
index 94680fcf726..070d284ce96 100644
--- a/arch/arm/mach-realview/realview_pb11mp.c
+++ b/arch/arm/mach-realview/realview_pb11mp.c
@@ -299,6 +299,21 @@ static struct sys_timer realview_pb11mp_timer = {
.init = realview_pb11mp_timer_init,
};
+static void realview_pb11mp_reset(char mode)
+{
+ void __iomem *hdr_ctrl = __io_address(REALVIEW_SYS_BASE) +
+ REALVIEW_SYS_RESETCTL_OFFSET;
+ unsigned int val;
+
+ /*
+ * To reset, we hit the on-board reset register
+ * in the system FPGA
+ */
+ val = __raw_readl(hdr_ctrl);
+ val |= REALVIEW_PB11MP_SYS_CTRL_RESET_CONFIGCLR;
+ __raw_writel(val, hdr_ctrl);
+}
+
static void __init realview_pb11mp_init(void)
{
int i;
@@ -324,6 +339,7 @@ static void __init realview_pb11mp_init(void)
#ifdef CONFIG_LEDS
leds_event = realview_leds_event;
#endif
+ realview_reset = realview_pb11mp_reset;
}
MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")