| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| imx8mm_evk |
| ========== |
| |
| U-Boot for the NXP i.MX8MM EVK board |
| |
| Quick Start |
| ----------- |
| |
| - Build the ARM Trusted firmware binary |
| - Get ddr firmware |
| - Build U-Boot |
| - Boot |
| |
| Get and Build the ARM Trusted firmware |
| -------------------------------------- |
| |
| Note: builddir is U-Boot build directory (source directory for in-tree builds) |
| Get ATF from: https://github.com/nxp-imx/imx-atf |
| branch: imx_5.4.47_2.2.0 |
| |
| .. code-block:: bash |
| |
| $ make PLAT=imx8mm bl31 |
| $ cp build/imx8mm/release/bl31.bin $(builddir) |
| |
| Get the ddr firmware |
| -------------------- |
| |
| .. code-block:: bash |
| |
| $ 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 $(builddir) |
| |
| Build U-Boot for sd card |
| -------------------------- |
| |
| .. code-block:: bash |
| |
| $ export CROSS_COMPILE=aarch64-poky-linux- |
| $ make imx8mm_evk_defconfig |
| $ make |
| |
| Burn the flash.bin to MicroSD card offset 33KB: |
| |
| .. code-block:: bash |
| |
| $sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=33 conv=notrunc |
| |
| Boot |
| ---- |
| Set Boot switch to SD boot |
| |
| Build U-Boot for qspi flash card |
| ------------------------------------ |
| |
| .. code-block:: bash |
| |
| $ export CROSS_COMPILE=aarch64-poky-linux- |
| $ make imx8mm_evk_fspi_defconfig |
| $ make |
| |
| Currently, there is no direct support to write to QSPI Flash. |
| Copy flash.bin to ${loadaddr} either from sd card or over network and then copy to |
| qspi flash |
| |
| From sd card to memory |
| |
| .. code-block:: bash |
| |
| $mmc dev 1 |
| $mmc read ${loadaddr} 0x00 <size_of_flash.bin/512> |
| |
| .. code-block:: bash |
| |
| $ sf probe |
| $ sf erase 0 <size_of_flash.bin_in_hex> |
| $ sf write $loadaddr 0x00 <size_of_flash.bin_in_hex> |
| |
| Boot from QSPI Flash |
| ----------------------- |
| Set Boot Switch to QSPI Flash |
| |
| Pin configuration for imx8mm_revC evk to boot from qspi flash |
| SW1101: 0110xxxxxx |
| SW1102: 00100x0010 |
