Add a README file explaining the U-Boot build and SD card flash procedures.
Signed-off-by: Fabio Estevam festevam@gmail.com --- board/freescale/imx8mp_evk/README | 41 +++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 board/freescale/imx8mp_evk/README
diff --git a/board/freescale/imx8mp_evk/README b/board/freescale/imx8mp_evk/README new file mode 100644 index 0000000000..7dbf61fa94 --- /dev/null +++ b/board/freescale/imx8mp_evk/README @@ -0,0 +1,41 @@ +U-Boot for the NXP i.MX8MP EVK board + +Quick Start +=========== +- Build the ARM Trusted firmware binary +- Get the firmware-imx package +- Build U-Boot +- Boot + +Get and Build the ARM Trusted firmware +====================================== +Note: $(srctree) is the U-Boot source directory +Get ATF from: https://source.codeaurora.org/external/imx/imx-atf +branch: imx_5.4.3_2.0.0 +$ make PLAT=imx8mp bl31 +$ sudo cp build/imx8mp/release/bl31.bin $(srctree) + +Get the ddr firmware +==================== +$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.7.bin +$ chmod +x firmware-imx-8.7.bin +$ ./firmware-imx-8.7 +$ sudo cp firmware-imx-8.7/firmware/ddr/synopsys/lpddr4_pmu_train_1d_dmem_201904.bin $(srctree)/lpddr4_pmu_train_1d_dmem.bin +$ sudo cp firmware-imx-8.7/firmware/ddr/synopsys/lpddr4_pmu_train_1d_imem_201904.bin $(srctree)/lpddr4_pmu_train_1d_imem.bin +$ sudo cp firmware-imx-8.7/firmware/ddr/synopsys/lpddr4_pmu_train_2d_dmem_201904.bin $(srctree)/lpddr4_pmu_train_2d_dmem.bin +$ sudo cp firmware-imx-8.7/firmware/ddr/synopsys/lpddr4_pmu_train_2d_imem_201904.bin $(srctree)/lpddr4_pmu_train_2d_imem.bin + +Build U-Boot +============ +$ export CROSS_COMPILE=aarch64-poky-linux- +$ make imx8mp_evk_defconfig +$ export ATF_LOAD_ADDR=0x960000 +$ make flash.bin + +Burn the flash.bin to the MicroSD card at offset 32KB +$sudo dd if=flash.bin of=/dev/sd[x] bs=1K seek=32; sync + +Boot +==== +Set Boot switch to SD boot +Use /dev/ttyUSB2 for U-Boot console