[RFC PATCH 1/2] irqchip: GIC: introduce ICPIDR2 register interface

From: Liu Hua
Date: Fri Jul 11 2014 - 19:47:56 EST

Peripheral ID2 Register provides a four-bit architecturally-defined
architecture revision field. So we can identify the GIC verison from
this register. It is useful sometimes.

Signed-off-by: Liu Hua <sdu.liu@xxxxxxxxxx>
include/linux/irqchip/arm-gic.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 45e2d8c..872a562 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -38,6 +38,7 @@
#define GIC_DIST_SOFTINT 0xf00
+#define GIC_DIST_ICPIDR2 0xfe8

#define GICH_HCR 0x0
#define GICH_VTR 0x4

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