From bb1a2aa617e67e2d60f22052b13422c7caeaf798 Mon Sep 17 00:00:00 2001 From: Harry Fearnhamm Date: Tue, 16 May 2006 16:50:21 +0100 Subject: [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 Signed-off-by: Russell King --- arch/arm/mach-realview/realview_eb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c index d4a586e38d5b..693fb1e396e0 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)); -- cgit v1.2.1