From 8b4101d0f9a48a8491043049ed6c7de7d75c63ee Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Tue, 26 May 2020 04:30:20 +0200 Subject: [PATCH] ARM: stm32: Hog GPIO PF7 high on DHCOR 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-dhcor-u-boot.dtsi | 9 +++++++++ configs/stm32mp15_dhcor_basic_defconfig | 1 + 2 files changed, 10 insertions(+) diff --git a/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi index ef730a8322..bd4c2adc35 100644 --- a/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi +++ b/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi @@ -21,6 +21,15 @@ }; }; +&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_dhcor_basic_defconfig b/configs/stm32mp15_dhcor_basic_defconfig index 7163d0ad1b..249646c449 100644 --- a/configs/stm32mp15_dhcor_basic_defconfig +++ b/configs/stm32mp15_dhcor_basic_defconfig @@ -71,6 +71,7 @@ CONFIG_SPL_BLOCK_CACHE=y CONFIG_DFU_MMC=y CONFIG_DFU_RAM=y CONFIG_DFU_VIRT=y +CONFIG_GPIO_HOG=y CONFIG_DM_HWSPINLOCK=y CONFIG_HWSPINLOCK_STM32=y CONFIG_DM_I2C=y -- 2.25.1