From 4fb6c04683aa5b45f3876f45465e13265e09eb56 Mon Sep 17 00:00:00 2001 From: Aswath Govindraju Date: Tue, 9 Mar 2021 21:53:15 +0530 Subject: [PATCH] arm64: dts: ti: k3-am642-evm: Add support for SPI EEPROM Add pinmux details and device tree node for the EEPROM attached to SPI0 module in main domain. Signed-off-by: Aswath Govindraju Signed-off-by: Nishanth Menon Reviewed-by: Vignesh Raghavendra Link: https://lore.kernel.org/r/20210309162315.22743-1-a-govindraju@ti.com --- arch/arm64/boot/dts/ti/k3-am642-evm.dts | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts index 962ef80..25fa6fb 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -154,6 +154,15 @@ >; }; + main_spi0_pins_default: main-spi0-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x0210, PIN_INPUT, 0) /* (D13) SPI0_CLK */ + AM64X_IOPAD(0x0208, PIN_OUTPUT, 0) /* (D12) SPI0_CS0 */ + AM64X_IOPAD(0x0214, PIN_OUTPUT, 0) /* (A13) SPI0_D0 */ + AM64X_IOPAD(0x0218, PIN_INPUT, 0) /* (A14) SPI0_D1 */ + >; + }; + main_i2c1_pins_default: main-i2c1-pins-default { pinctrl-single,pins = < AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */ @@ -295,6 +304,19 @@ status = "disabled"; }; +&main_spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&main_spi0_pins_default>; + ti,pindir-d0-out-d1-in = <1>; + eeprom@0 { + compatible = "microchip,93lc46b"; + reg = <0>; + spi-max-frequency = <1000000>; + spi-cs-high; + data-size = <16>; + }; +}; + &sdhci0 { /* emmc */ bus-width = <8>; -- 2.7.4