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authorHarry Fearnhamm <Harry.Fearnhamm@arm.com>2006-05-16 15:50:21 (GMT)
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-05-16 15:50:21 (GMT)
commitbb1a2aa617e67e2d60f22052b13422c7caeaf798 (patch)
tree01b34d62f8ec450c496bb090733d49695346442e /arch/arm/mach-realview
parent9d494ccb9ca297f80dc61a0d6357e88c86f44e92 (diff)
downloadlinux-bb1a2aa617e67e2d60f22052b13422c7caeaf798.tar.xz
[ARM] 3527/1: MPCore Boot Lockup Fix
Patch from Harry Fearnhamm This patch fixes the occasional lockup seen in early boot stage on RealView MPCore system. Signed-off-by: Harry Fearnhamm <Harry.Fearnhamm@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-realview')
-rw-r--r--arch/arm/mach-realview/realview_eb.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index d4a586e..693fb1e 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -137,8 +137,11 @@ static struct amba_device *amba_devs[] __initdata = {
static void __init gic_init_irq(void)
{
#ifdef CONFIG_REALVIEW_MPCORE
+ unsigned int pldctrl;
writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
- writel(0x008003c0, __io_address(REALVIEW_SYS_BASE) + 0xd8);
+ pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + 0xd8);
+ pldctrl |= 0x00800000; /* New irq mode */
+ writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + 0xd8);
writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
#endif
gic_dist_init(__io_address(REALVIEW_GIC_DIST_BASE));