[ARM] S3C64XX: Add gpio bank numbering

Define the gpio numbers for the S3C64XX GPIO banks
available on the S3C6400 and S3C6410.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/arch/arm/plat-s3c/Kconfig b/arch/arm/plat-s3c/Kconfig
index 0deb1054975f..d7767e0305d0 100644
--- a/arch/arm/plat-s3c/Kconfig
+++ b/arch/arm/plat-s3c/Kconfig
@@ -103,6 +103,17 @@ config S3C_LOWLEVEL_UART_PORT
           this configuration should be between zero and two. The port
           must have been initialised by the boot-loader before use.
 
+# options for gpiolib support
+
+config S3C_GPIO_SPACE
+        int "Space between gpio banks"
+        default 0
+        help
+          Add a number of spare GPIO entries between each bank for debugging
+          purposes. This allows any problems where an counter overflows from
+          one bank to another to be caught, at the expense of using a little
+          more memory.
+
 # device definitions to compile in
 
 config S3C_DEV_HSMMC