ARM: tegra: dts: cardhu: enable SLINK4

Enable SLINK4 and connected device in Tegra30 based
platform Cardhu.
Setting maximum spi frequency to 25MHz.

SPI serial flash is connected on CS1 of SLINK4 on
cardhu platform.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
[swarren: swapped reg/compatible order to be consistent]
Signed-off-by: Stephen Warren <swarren@nvidia.com>

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 9de2b9ff9d6ed6067e31c7fbe1533eb1f4a738f3..ac2c2c416a148e1f8a6b2fcf8cd6876ac5e72d6d 100644 (file)
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -51,4 +51,5 @@ ti    Texas Instruments
 via    VIA Technologies, Inc.
 wlf    Wolfson Microelectronics
 wm     Wondermedia Technologies, Inc.
+winbond Winbond Electronics corp.
 xlnx   Xilinx

diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index b245e6cf633823879ff10af11439c235038bc85b..bdb2a660f37643deb8ea6501d51e14b8754fd608 100644 (file)
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -275,6 +275,16 @@
                };
        };
 
+       spi@7000da00 {
+               status = "okay";
+               spi-max-frequency = <25000000>;
+               spi-flash@1 {
+                       compatible = "winbond,w25q32";
+                       reg = <1>;
+                       spi-max-frequency = <20000000>;
+               };
+       };
+
        ahub {
                i2s@70080400 {
                        status = "okay";