7f672e66f8
The I2C function of the RT5350 SoC on the HLK-RM04 is used for GPIO1 and GPIO2. Take note that the I2C_SD pin is GPIO1 on the RT5350 and is exposed on the HLK-RM04 as GPIO0 Likewise the I2C_SCLK pin is GPIO2 on the RT5350 and is exposed on the HLK-RM04 as GPIO1 group mode 1 mode 2 hlk-rm04 pin & export i2c i2c_sd gpio1 (pin 8, hlk-rm04:gpio0) i2c i2c_sclk gpio2 (pin 9, hlk-rm04:gpio1) reference: http://www.hlktech.net/product_detail.php?ProId=39 http://cdn.sparkfun.com/datasheets/Wireless/WiFi/RT5350.pdf Signed-off-by: John Clark <inindev@gmail.com> SVN-Revision: 48664
120 lines
1.9 KiB
Text
120 lines
1.9 KiB
Text
/dts-v1/;
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/include/ "rt5350.dtsi"
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/ {
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compatible = "HLKRM04", "ralink,rt5350-soc";
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model = "HILINK HLK-RM04";
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memory@0 {
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device_type = "memory";
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reg = <0x0 0x1000000>;
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};
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chosen {
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bootargs = "console=ttyS1,57600";
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};
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palmbus@10000000 {
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uart@500 {
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status = "okay";
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};
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spi@b00 {
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status = "okay";
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m25p80@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "jedec,spi-nor";
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reg = <0 0>;
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linux,modalias = "m25p80", "s25fl064k";
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spi-max-frequency = <10000000>;
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partition@0 {
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label = "u-boot";
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reg = <0x0 0x30000>;
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read-only;
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};
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partition@30000 {
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label = "u-boot-env";
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reg = <0x30000 0x10000>;
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read-only;
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};
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factory: partition@40000 {
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label = "factory";
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reg = <0x40000 0x10000>;
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read-only;
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};
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partition@50000 {
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label = "firmware";
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reg = <0x50000 0x3b0000>;
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};
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};
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};
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};
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pinctrl {
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state_default: pinctrl0 {
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gpio {
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ralink,group = "i2c", "jtag";
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ralink,function = "gpio";
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};
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};
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};
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ethernet@10100000 {
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mtd-mac-address = <&factory 0x4>;
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};
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wmac@10180000 {
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ralink,mtd-eeprom = <&factory 0>;
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};
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ehci@101c0000 {
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status = "okay";
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};
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ohci@101c1000 {
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status = "okay";
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};
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gpio-export {
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compatible = "gpio-export";
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#size-cells = <0>;
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/* I2C */
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gpio1 {
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/* I2C_I2C_SD */
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gpio-export,name = "hlk-rm04:gpio0";
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gpio-export,direction_may_change = <1>;
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gpios = <&gpio0 1 0>;
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};
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gpio2 {
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/* I2C_I2C_SCLK */
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gpio-export,name = "hlk-rm04:gpio1";
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gpio-export,direction_may_change = <1>;
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gpios = <&gpio0 2 0>;
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};
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};
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gpio-keys-polled {
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compatible = "gpio-keys-polled";
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#address-cells = <1>;
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#size-cells = <0>;
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poll-interval = <20>;
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reset {
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label = "reset";
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gpios = <&gpio0 0 1>;
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linux,code = <0x198>;
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};
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wps {
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label = "wps";
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gpios = <&gpio0 14 1>;
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linux,code = <0x211>;
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};
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};
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};
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