| Marek Vasut | 0f97ed0 | 2020-04-29 20:09:08 +0200 | [diff] [blame] | 1 | U-Boot for the Technexion Pico i.MX8MQ |
| 2 | |
| 3 | Quick Start |
| 4 | =========== |
| 5 | - Build the TFA binary |
| 6 | - Get DDR and HDMI firmware |
| 7 | - Build U-Boot |
| 8 | - Boot |
| 9 | |
| 10 | Get and Build the TFA blob |
| 11 | ========================== |
| 12 | Note: srctree is U-Boot source directory |
| 13 | Get ATF from: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git |
| 14 | branch: master |
| 15 | $ CROSS_COMPILE=aarch64-linux-gnu- make PLAT=imx8mq bl31 |
| 16 | $ cp build/imx8mq/release/bl31.bin $(builddir) |
| 17 | |
| 18 | Get the DDR and HDMI firmware |
| 19 | ============================= |
| 20 | $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-7.9.bin |
| 21 | $ chmod +x firmware-imx-7.9.bin |
| 22 | $ ./firmware-imx-7.9.bin |
| 23 | # Or use this to avoid running random scripts from the internet, |
| 24 | # but note that you must agree to the license the script displays: |
| 25 | # $ dd if=firmware-imx-7.9.bin of=firmware-imx-7.9.tar.bz2 bs=38868 skip=1 |
| 26 | # $ tar -xf firmware-imx-7.9.tar.bz2 |
| 27 | $ cp firmware-imx-7.9/firmware/hdmi/cadence/signed_hdmi_imx8m.bin $(builddir) |
| 28 | $ cp firmware-imx-7.9/firmware/ddr/synopsys/lpddr4*.bin $(builddir) |
| 29 | |
| 30 | Build U-Boot |
| 31 | ============ |
| 32 | $ export CROSS_COMPILE=aarch64-poky-linux- |
| 33 | $ make pico-imx8mq_defconfig |
| 34 | $ make flash.bin |
| 35 | |
| 36 | Burn the flash.bin to MicroSD card offset 33KB |
| 37 | $ dd if=flash.bin of=/dev/mmcblkX bs=1024 seek=33 |
| 38 | Or into eMMC from a running system |
| 39 | $ dhcp flash.bin && mmc write $loadaddr 0x42 0x800 |
| 40 | |
| 41 | Boot |
| 42 | ==== |
| 43 | "o" denotes a pin |
| 44 | "[]" denotes two pins bridged by a jumper |
| 45 | |
| 46 | eMMC boot: |
| 47 | J1 o[] []o J2 |
| 48 | []o o[] |
| 49 | |
| 50 | USB upload via USB-C connector: |
| 51 | J1 ooo ooo J2 |
| 52 | o[] []o |