From ddb27f3bf771b53e0e7aa93d0186ea5c03381e23 Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Wed, 17 Apr 2013 14:36:50 +0200 Subject: gpio: grgpio: Add device driver for GRGPIO cores This driver supports GRGPIO gpio cores available in the GRLIB VHDL IP core library from Aeroflex Gaisler. Signed-off-by: Andreas Larsson Signed-off-by: Linus Walleij --- .../devicetree/bindings/gpio/gpio-grgpio.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-grgpio.txt (limited to 'Documentation/devicetree/bindings/gpio') diff --git a/Documentation/devicetree/bindings/gpio/gpio-grgpio.txt b/Documentation/devicetree/bindings/gpio/gpio-grgpio.txt new file mode 100644 index 0000000..1ec46fd --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-grgpio.txt @@ -0,0 +1,21 @@ +Aeroflex Gaisler GRGPIO General Purpose I/O cores. + +The GRGPIO GPIO core is available in the GRLIB VHDL IP core library. + +Note: In the ordinary environment for the GRGPIO core, a Leon SPARC system, +these properties are built from information in the AMBA plug&play. + +Required properties: + +- name : Should be "GAISLER_GPIO" or "01_01a" + +- reg : Address and length of the register set for the device + +- interrupts : Interrupt numbers for this device + +Optional properties: + +- nbits : The number of gpio lines. If not present driver assumes 32 lines. + +For further information look in the documentation for the GLIB IP core library: +http://www.gaisler.com/products/grlib/grip.pdf -- cgit v1.1