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ARM: stm32: Hog GPIO PF7 high on DHCOM to unlock SPI NOR nWP

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The SPI NOR nWP line is connected to GPIO PF7 on the SoM,
pull the GPIO line high by default to clear SPI NOR WP.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Marek Vasut 2020-04-27 12:26:43 +02:00 committed by Patrick Delaunay
parent 8d055b020a
commit 1e444bdc98
2 changed files with 10 additions and 0 deletions
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9
arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi
View File

@ -49,6 +49,15 @@
};
};
&gpiof {
snor-nwp {
gpio-hog;
gpios = <7 0>;
output-high;
line-name = "spi-nor-nwp";
};
};
&i2c4 {
u-boot,dm-pre-reloc;
};

1
configs/stm32mp15_dhcom_basic_defconfig
View File

@ -74,6 +74,7 @@ CONFIG_DFU_MMC=y
CONFIG_DFU_RAM=y
CONFIG_DFU_VIRT=y
CONFIG_SET_DFU_ALT_INFO=y
CONFIG_GPIO_HOG=y
CONFIG_DM_HWSPINLOCK=y
CONFIG_HWSPINLOCK_STM32=y
CONFIG_DM_I2C=y