From 1e444bdc986aa56f9aaff01e1b57ed34d6ce8667 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 27 Apr 2020 12:26:43 +0200 Subject: [PATCH] ARM: stm32: Hog GPIO PF7 high on DHCOM to unlock SPI NOR nWP 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 Cc: Patrick Delaunay Cc: Patrice Chotard Reviewed-by: Patrick Delaunay --- arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi | 9 +++++++++ configs/stm32mp15_dhcom_basic_defconfig | 1 + 2 files changed, 10 insertions(+) diff --git a/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi index e59da53502..75d75266e8 100644 --- a/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi +++ b/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi @@ -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; }; diff --git a/configs/stm32mp15_dhcom_basic_defconfig b/configs/stm32mp15_dhcom_basic_defconfig index 7638234073..c1c83eb4fc 100644 --- a/configs/stm32mp15_dhcom_basic_defconfig +++ b/configs/stm32mp15_dhcom_basic_defconfig @@ -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 -- 2.25.1