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ARM: dts: stm32: Drop nWP GPIO hog on DHSOM

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The nWP GPIO hog was used to unlock the SPI NOR write protect when U-Boot
used to operate the SPI NOR in 1-1-1 mode. Now that the SPI NOR is operated
in 1-1-4 mode, the hog has adverse effects and causes transfer corruption,
since the hogged pin is also the IO2 pin. Remove the hogs.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
This commit is contained in:
Marek Vasut 2021-10-23 20:33:33 +02:00 • committed by Patrice Chotard
parent c5eb35651c
commit eb319d8795
2 changed files with 0 additions and 18 deletions
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9
arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi
View file

@ -50,15 +50,6 @@
};
};
&gpiof {
snor-nwp {
gpio-hog;
gpios = <7 0>;
output-high;
line-name = "spi-nor-nwp";
};
};
&i2c4 {
u-boot,dm-pre-reloc;
};

9
arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi
View file

@ -25,15 +25,6 @@
u-boot,dm-spl;
};
&gpiof {
snor-nwp {
gpio-hog;
gpios = <7 0>;
output-high;
line-name = "spi-nor-nwp";
};
};
&i2c4 {
u-boot,dm-pre-reloc;
};