ARM: S5PC1xx: add gpiolib and external/gpio interrupt support

Add support for gpiolib calls. This is based on the gpiolib implementation
from plat-s3c64xx tree.
Add support for external interrupts for GPIO H banks.
Add support for GPIO interrupts for all banks.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/plat-s5pc1xx/cpu.c b/arch/arm/plat-s5pc1xx/cpu.c
index e8f347218ecb..02baeaa2a121 100644
--- a/arch/arm/plat-s5pc1xx/cpu.c
+++ b/arch/arm/plat-s5pc1xx/cpu.c
@@ -60,6 +60,11 @@ static struct map_desc s5pc1xx_iodesc[] __initdata = {
                 .length         = SZ_4K,
                 .type           = MT_DEVICE,
         }, {
+                .virtual        = (unsigned long)S5PC1XX_VA_GPIO,
+                .pfn            = __phys_to_pfn(S5PC100_PA_GPIO),
+                .length         = SZ_4K,
+                .type           = MT_DEVICE,
+        }, {
                 .virtual        = (unsigned long)S5PC1XX_VA_CHIPID,
                 .pfn            = __phys_to_pfn(S5PC1XX_PA_CHIPID),
                 .length         = SZ_16,