diff options
| author | John Crispin <john@phrozen.org> | 2017-02-13 12:38:27 +0100 |
|---|---|---|
| committer | John Crispin <john@phrozen.org> | 2017-02-14 12:17:52 +0100 |
| commit | 9c2422709075196022fcbc2d0f5f83e01d02b951 (patch) | |
| tree | 4f18a4dd9d22fcbe10c0365596dd133cf28383be /target/linux/ramips/patches-4.9/0026-DT-Add-documentation-for-gpio-ralink.patch | |
| parent | d5221d5a419c14456bccba9f6825567839082fb0 (diff) | |
| download | upstream-9c2422709075196022fcbc2d0f5f83e01d02b951.tar.gz upstream-9c2422709075196022fcbc2d0f5f83e01d02b951.tar.bz2 upstream-9c2422709075196022fcbc2d0f5f83e01d02b951.zip | |
ramips: add v4.9 support
NAND support is missing
Signed-off-by: John Crispin <john@phrozen.org>
Diffstat (limited to 'target/linux/ramips/patches-4.9/0026-DT-Add-documentation-for-gpio-ralink.patch')
| -rw-r--r-- | target/linux/ramips/patches-4.9/0026-DT-Add-documentation-for-gpio-ralink.patch | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-4.9/0026-DT-Add-documentation-for-gpio-ralink.patch b/target/linux/ramips/patches-4.9/0026-DT-Add-documentation-for-gpio-ralink.patch new file mode 100644 index 0000000000..7d5f98f647 --- /dev/null +++ b/target/linux/ramips/patches-4.9/0026-DT-Add-documentation-for-gpio-ralink.patch @@ -0,0 +1,59 @@ +From d410e5478c622c01fcf31427533df5f433df9146 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 28 Jul 2013 19:45:30 +0200 +Subject: [PATCH 26/53] DT: Add documentation for gpio-ralink + +Describe gpio-ralink binding. + +Signed-off-by: John Crispin <blogic@openwrt.org> +Cc: linux-mips@linux-mips.org +Cc: devicetree@vger.kernel.org +Cc: linux-gpio@vger.kernel.org +--- + .../devicetree/bindings/gpio/gpio-ralink.txt | 40 ++++++++++++++++++++ + 1 file changed, 40 insertions(+) + create mode 100644 Documentation/devicetree/bindings/gpio/gpio-ralink.txt + +--- /dev/null ++++ b/Documentation/devicetree/bindings/gpio/gpio-ralink.txt +@@ -0,0 +1,40 @@ ++Ralink SoC GPIO controller bindings ++ ++Required properties: ++- compatible: ++ - "ralink,rt2880-gpio" for Ralink controllers ++- #gpio-cells : Should be two. ++ - first cell is the pin number ++ - second cell is used to specify optional parameters (unused) ++- gpio-controller : Marks the device node as a GPIO controller ++- reg : Physical base address and length of the controller's registers ++- interrupt-parent: phandle to the INTC device node ++- interrupts : Specify the INTC interrupt number ++- ralink,num-gpios : Specify the number of GPIOs ++- ralink,register-map : The register layout depends on the GPIO bank and actual ++ SoC type. Register offsets need to be in this order. ++ [ INT, EDGE, RENA, FENA, DATA, DIR, POL, SET, RESET, TOGGLE ] ++ ++Optional properties: ++- ralink,gpio-base : Specify the GPIO chips base number ++ ++Example: ++ ++ gpio0: gpio@600 { ++ compatible = "ralink,rt5350-gpio", "ralink,rt2880-gpio"; ++ ++ #gpio-cells = <2>; ++ gpio-controller; ++ ++ reg = <0x600 0x34>; ++ ++ interrupt-parent = <&intc>; ++ interrupts = <6>; ++ ++ ralink,gpio-base = <0>; ++ ralink,num-gpios = <24>; ++ ralink,register-map = [ 00 04 08 0c ++ 20 24 28 2c ++ 30 34 ]; ++ ++ }; |