mirror of
https://github.com/smaeul/u-boot.git
synced 2025-09-14 14:06:02 +01:00
a5685ea488
The DDR is configured for LPDDR4 running at 1.6GHz which requires the voltage on the PMIC to rise a bit before initializing LPDDR4 or it will be running out of spec. Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Peng Fan <peng.fan@nxp.com>
U-Boot for the Beacon EmbeddedWorks i.MX8M Nano Devkit Quick Start =========== - Build the ARM Trusted firmware binary - Get ddr firmware - Build U-Boot - Boot Get and Build the ARM Trusted firmware ====================================== Note: $(srctree) is U-Boot source directory $ git clone https://source.codeaurora.org/external/imx/imx-atf $ git lf-5.10.72-2.2.0 $ make PLAT=imx8mn bl31 CROSS_COMPILE=aarch64-linux-gnu- $ cp build/imx8mn/release/bl31.bin $(srctree) Get the DDR firmware ==================== $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.9.bin $ chmod +x firmware-imx-8.9.bin $ ./firmware-imx-8.9 $ cp firmware-imx-8.9/firmware/ddr/synopsys/lpddr4*.bin $(srctree) Build U-Boot ============ $ make imx8mn_beacon_defconfig $ make CROSS_COMPILE=aarch64-linux-gnu- Burn U-Boot to microSD Card =========================== $ sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=32 Boot ==== Set baseboard DIP switch: S17: 1100XXXX