[ARM] 3527/1: MPCore Boot Lockup Fix (bb1a2aa6) · Commits · 戴 / test

Patch from Harry Fearnhamm This patch fixes the occasional lockup seen in early boot stage on RealView MPCore system. Signed-off-by:

arch/arm/mach-realview/realview_eb.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -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));