The I2C GPIO expander at address 0x38 is used for card detect GPIOs.
Signed-off-by: Roger Quadros rogerq@kernel.org --- arch/arm/dts/k3-am642-evm-u-boot.dtsi | 4 ++++ arch/arm/dts/k3-am642-evm.dts | 8 ++++++++ 2 files changed, 12 insertions(+)
diff --git a/arch/arm/dts/k3-am642-evm-u-boot.dtsi b/arch/arm/dts/k3-am642-evm-u-boot.dtsi index 80c04d0117..f274d11697 100644 --- a/arch/arm/dts/k3-am642-evm-u-boot.dtsi +++ b/arch/arm/dts/k3-am642-evm-u-boot.dtsi @@ -40,6 +40,10 @@ bootph-pre-ram; };
+&tca9554 { + bootph-pre-ram; +}; + &main_uart0 { bootph-pre-ram; }; diff --git a/arch/arm/dts/k3-am642-evm.dts b/arch/arm/dts/k3-am642-evm.dts index 529eb81538..bc7e6f29b0 100644 --- a/arch/arm/dts/k3-am642-evm.dts +++ b/arch/arm/dts/k3-am642-evm.dts @@ -353,6 +353,14 @@ compatible = "atmel,24c1024"; reg = <0x50>; }; + + tca9554: gpio@38 { + /* TCA9554 */ + compatible = "nxp,pca9554"; + reg = <0x38>; + gpio-controller; + #gpio-cells = <2>; + }; };
&main_i2c1 {