Messages in this thread Patch in this message | | | From | Liu Hua <> | Subject | [RFC PATCH 1/2] irqchip: GIC: introduce ICPIDR2 register interface | Date | Fri, 11 Jul 2014 14:46:16 +0800 |
| |
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@huawei.com> --- 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_SGI_PENDING_CLEAR 0xf10 #define GIC_DIST_SGI_PENDING_SET 0xf20 +#define GIC_DIST_ICPIDR2 0xfe8 #define GICH_HCR 0x0 #define GICH_VTR 0x4 -- 1.9.0
| |