Commit 0bdaca09 authored by Tim Harvey's avatar Tim Harvey Committed by Shawn Guo
Browse files

arm64: dts: imx8mp-venice-gw74xx: 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: 531936b2 ("arm64: dts: imx8mp-venice-gw74xx: update to revB PCB")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarTim Harvey <tharvey@gateworks.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 1fc02c20

arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts

+1 −1
Original line number Diff line number Diff line
@@ -201,7 +201,7 @@ &ecspi1 { 
	tpm@0 {

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

		reg = <0x0>;

		spi-max-frequency = <36000000>;

		spi-max-frequency = <25000000>;

	};

};