Add spi gpio node for 74LV595.
Signed-off-by: Peng Fan <peng....@nxp.com>
Cc: Stefano Babic <sba...@denx.de>
---
V2:
New
arch/arm/dts/imx7d-sdb.dts | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/arch/arm/dts/imx7d-sdb.dts b/arch/arm/dts/imx7d-sdb.dts
index 0378897..3b8f1cb 100644
--- a/arch/arm/dts/imx7d-sdb.dts
+++ b/arch/arm/dts/imx7d-sdb.dts
@@ -16,4 +16,39 @@
reg = <0x80000000 0x80000000>;
};
+ spi4 {
+ compatible = "spi-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_spi1>;
+ status = "okay";
+ gpio-sck = <&gpio1 13 0>;
+ gpio-mosi = <&gpio1 9 0>;
+ cs-gpios = <&gpio1 12 0>;
+ num-chipselects = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpio_spi: gpio_spi@0 {
+ compatible = "fairchild,74hc595";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0>;
+ registers-number = <1>;
+ registers-default = /bits/ 8 <0x74>; /* Enable
PERI_3V3, SENSOR_RST_B and HDMI_RST*/
+ spi-max-frequency = <100000>;
+ };
+ };
+};
+
+&iomuxc {
+ imx7d-sdb {
+ pinctrl_spi1: spi1grp {
+ fsl,pins = <
+ MX7D_PAD_GPIO1_IO09__GPIO1_IO9 0x59
+ MX7D_PAD_GPIO1_IO12__GPIO1_IO12 0x59
+ MX7D_PAD_GPIO1_IO13__GPIO1_IO13 0x59
+ >;
+ };
+ };
+
};
--
2.6.2
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