The SN65HVS882 is available on the AM437x IDK and is attached to SPI1. Input is attached to the I/O header.
Signed-off-by: Andrew F. Davis <[email protected]> Reviewed-by: Roger Quadros <[email protected]> Signed-off-by: Sekhar Nori <[email protected]> --- arch/arm/boot/dts/am437x-idk-evm.dts | 42 ++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/arch/arm/boot/dts/am437x-idk-evm.dts b/arch/arm/boot/dts/am437x-idk-evm.dts index 25ce611..fff7ef6 100644 --- a/arch/arm/boot/dts/am437x-idk-evm.dts +++ b/arch/arm/boot/dts/am437x-idk-evm.dts @@ -178,6 +178,24 @@ >; }; + spi1_pins_default: spi1_pins_default { + pinctrl-single,pins = < + AM4372_IOPAD(0x908, PIN_INPUT | MUX_MODE2) /* mii1_col.spi1_sclk */ + AM4372_IOPAD(0x910, PIN_INPUT | MUX_MODE2) /* mii1_rx_er.spi1_d1 */ + AM4372_IOPAD(0x944, PIN_OUTPUT | MUX_MODE2) /* rmii1_ref_clk.spi1_cs0 */ + AM4372_IOPAD(0x90c, PIN_OUTPUT | MUX_MODE7) /* mii1_crs.gpio3_1 */ + >; + }; + + spi1_pins_sleep: spi1_pins_sleep { + pinctrl-single,pins = < + AM4372_IOPAD(0x908, PIN_INPUT_PULLDOWN | MUX_MODE7) + AM4372_IOPAD(0x910, PIN_INPUT_PULLDOWN | MUX_MODE7) + AM4372_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE7) + AM4372_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE7) + >; + }; + ecap0_pins_default: backlight_pins_default { pinctrl-single,pins = < AM4372_IOPAD(0x964, PIN_OUTPUT | MUX_MODE0) /* ecap0_in_pwm0_out.ecap0_in_pwm0_out */ @@ -292,6 +310,26 @@ clock-frequency = <100000>; }; +&spi1 { + status = "okay"; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&spi1_pins_default>; + pinctrl-1 = <&spi1_pins_sleep>; + ti,pindir-d0-out-d1-in; + + sn65hvs882: sn65hvs882@0 { + compatible = "pisosr-gpio"; + gpio-controller; + #gpio-cells = <2>; + + load-gpios = <&gpio3 1 GPIO_ACTIVE_LOW>; + + reg = <0>; + spi-max-frequency = <1000000>; + spi-cpol; + }; +}; + &epwmss0 { status = "okay"; }; @@ -310,6 +348,10 @@ status = "okay"; }; +&gpio3 { + status = "okay"; +}; + &gpio4 { status = "okay"; }; -- 2.10.0
