Re: [PATCH] arm64: dts: ti: k3-am642-evm: Add support for SPI EEPROM
From: Vignesh Raghavendra <vigneshr@ti.com>
Date: 2021-03-09 14:49:23
Also in:
linux-devicetree, lkml
On 3/1/21 11:35 AM, Aswath Govindraju wrote:
Add pinmux details and device tree node for the EEPROM attached to SPI0 module in main domain. Signed-off-by: Aswath Govindraju <redacted> ---
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com> Regards Vignesh
quoted hunk ↗ jump to hunk
This patch depends on, https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210301055109.17626-3-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 bfd849a29655..bc5bd7f896ab 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts@@ -139,6 +139,15 @@ AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* (E19) USB0_DRVVBUS */ >; }; + + 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_uart0 {@@ -245,6 +254,19 @@ pinctrl-0 = <&main_usb0_pins_default>; }; +&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>;
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