DHCOM STM32MP1 Bootloader U-Boot

How to build U-Boot

Get sources from Github

1. Start the Console on Linux 2. `git clone https://github.com/dh-electronics/u-boot-stm32mp1.git --branch dev/2021.01_dhsom` 3. `cd u-boot-stm32mp1`

Configure and build the Device Tree + Kernel

4. `ARCH=arm CROSS_COMPILE=/opt/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- make stm32mp15_dhcom_basic_defconfig` 5. ARCH=arm CROSS_COMPILE=/opt/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- make -j`nproc`

SPI Flash Init

`sf probe`

Example: sf probe

Description: Initializes the OnBoard SPI Flash

SPI Flash Read

`sf read <SDRAM address> <SPI Flash address> <Bytes>`