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ARM: 5774/1: Fix Realview ARM1176PB board reboot

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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>
This commit is contained in:
Philby John
2009-10-28 19:09:12 +01:00
committed by Russell King
parent df71dfd4ca
commit 426fcd2a35
7 changed files with 50 additions and 21 deletions
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10
arch/arm/mach-realview/include/mach/system.h
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@@ -25,6 +25,8 @@
#include <mach/hardware.h>
#include <mach/platform.h>
void (*realview_reset)(char mode);
static inline void arch_idle(void)
{
/*
@@ -36,16 +38,12 @@ static inline void arch_idle(void)
static inline void arch_reset(char mode, const char *cmd)
{
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_SYS_CTRL_RESET_CONFIGCLR;
__raw_writel(val, hdr_ctrl);
if (realview_reset)
realview_reset(mode);
}
#endif