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.. | 18-Mar-2022 | - | ||||
Kconfig | A D | 18-Mar-2022 | 158 | 13 | 8 | |
MAINTAINERS | A D | 18-Mar-2022 | 172 | 7 | 6 | |
Makefile | A D | 18-Mar-2022 | 247 | 13 | 5 | |
README | A D | 18-Mar-2022 | 1.4 KiB | 53 | 44 | |
lpddr4_timing.h | A D | 18-Mar-2022 | 385 | 15 | 7 | |
lpddr4_timing_1gb.c | A D | 18-Mar-2022 | 32.7 KiB | 1,735 | 1,705 | |
lpddr4_timing_2gb.c | A D | 18-Mar-2022 | 32.7 KiB | 1,735 | 1,705 | |
lpddr4_timing_3gb.c | A D | 18-Mar-2022 | 32.7 KiB | 1,735 | 1,705 | |
lpddr4_timing_4gb.c | A D | 18-Mar-2022 | 32.7 KiB | 1,735 | 1,705 | |
pico-imx8mq.c | A D | 18-Mar-2022 | 3.2 KiB | 147 | 111 | |
spl.c | A D | 18-Mar-2022 | 6 KiB | 228 | 170 |
README
1U-Boot for the Technexion Pico i.MX8MQ 2 3Quick Start 4=========== 5- Build the TFA binary 6- Get DDR and HDMI firmware 7- Build U-Boot 8- Boot 9 10Get and Build the TFA blob 11========================== 12Note: srctree is U-Boot source directory 13Get ATF from: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git 14branch: master 15$ CROSS_COMPILE=aarch64-linux-gnu- make PLAT=imx8mq bl31 16$ cp build/imx8mq/release/bl31.bin $(builddir) 17 18Get the DDR and HDMI firmware 19============================= 20$ 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 $(builddir) 29 30Build U-Boot 31============ 32$ export CROSS_COMPILE=aarch64-poky-linux- 33$ make pico-imx8mq_defconfig 34$ make flash.bin 35 36Burn the flash.bin to MicroSD card offset 33KB 37$ dd if=flash.bin of=/dev/mmcblkX bs=1024 seek=33 38Or into eMMC from a running system 39$ dhcp flash.bin && mmc write $loadaddr 0x42 0x800 40 41Boot 42==== 43"o" denotes a pin 44"[]" denotes two pins bridged by a jumper 45 46eMMC boot: 47J1 o[] []o J2 48 []o o[] 49 50USB upload via USB-C connector: 51J1 ooo ooo J2 52 o[] []o 53