Commit b2534475 authored by Tim Harvey's avatar Tim Harvey Committed by Shawn Guo
Browse files

arm64: dts: imx8mp-venice-gw72xx: fix TPM SPI frequency 

The IMX8MPDS Table 37 [1] shows that the max SPI master read frequency
depends on the pins the interface is muxed behind with ECSPI2
muxed behind ECSPI2 supporting up to 25MHz.

Adjust the spi-max-frequency based on these findings.

[1] https://www.nxp.com/webapp/Download?colCode=IMX8MPIEC



Fixes: 5016f220 ("arm64: dts: imx8mp-venice-gw72xx: add TPM device")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarTim Harvey <tharvey@gateworks.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 528e2d31

arch/arm64/boot/dts/freescale/imx8mp-venice-gw72xx.dtsi

+1 −1
Original line number Diff line number Diff line
@@ -110,7 +110,7 @@ &ecspi2 { 
	tpm@1 {

		compatible = "atmel,attpm20p", "tcg,tpm_tis-spi";

		reg = <0x1>;

		spi-max-frequency = <36000000>;

		spi-max-frequency = <25000000>;

	};

};