Re: [PATCH] ARM MMU: add strongly-ordered memory type

[Russell King - ARM Linux <linux@arm.linux.org.uk>]

On Thu, Aug 07, 2008 at 10:20:33PM +0100, Russell King - ARM Linux wrote:
> In the case of arch/arm/mach-omap2/irq.c, reading the INTC_REVISION
> reg after masking should be a sufficient solution.

And here's a patch to do exactly that.

diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 9ef15b3..27610b1 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -48,6 +48,7 @@ static struct omap_irq_bank {
 static void omap_ack_irq(unsigned int irq)
 {
 	__raw_writel(0x1, irq_banks[0].base_reg + INTC_CONTROL);
+	__raw_readl(irq_banks[0].base_reg + INTC_REVISION);
 }
 
 static void omap_mask_irq(unsigned int irq)
@@ -61,6 +62,7 @@ static void omap_mask_irq(unsigned int irq)
 	}
 
 	__raw_writel(1 << irq, irq_banks[0].base_reg + INTC_MIR_SET0 + offset);
+	__raw_readl(irq_banks[0].base_reg + INTC_REVISION);
 }
 
 static void omap_unmask_irq(unsigned int irq)