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506df9dc58
1. Convert all linker symbols to char[] type so that we can get the
corresponding address by calling array name 'var' or its address
'&var'. In this way, we can avoid some potential issues[1].
2. Remove unused symbol '_TEXT_BASE'. It has been abandoned and has
not been referenced by any source code.
3. Move '__data_end' to the arch x86's own sections header as it's
only used by x86 arch.
4. Remove some duplicate declared linker symbols. Now we use the
standard header file to declare them.
[1] This patch fixes the boot failure on MIPS target. Error log:
SPL: Image overlaps SPL
Fixes:
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.. | ||
imx8mq_cm.c | ||
imximage-8mq-lpddr4.cfg | ||
Kconfig | ||
lpddr4_timing.c | ||
MAINTAINERS | ||
Makefile | ||
README | ||
spl.c |
U-Boot for the Ronetix i.MX8MQ-CM board Quick Start =========== - Build the ARM Trusted firmware binary - Get ddr firmware - Build U-Boot - Boot Get and Build the ARM Trusted firmware ====================================== $ git clone https://github.com/nxp-imx/imx-atf $ cd imx-atf $ git checkout imx_4.19.35_1.0.0 $ make PLAT=imx8mq bl31 $ cd .. $ cp imx-atf/build/imx8mq/release/bl31.bin . 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.bin $ cp firmware-imx-8.9/firmware/ddr/synopsys/lpddr4*.bin . Build U-Boot ============ $ /opt/cross/aarch64-ronetix-linux-9.2/bin/aarch64-ronetix-linux-gnu- $ make imx8mq_cm_defconfig $ make Burn the flash.bin to MicroSD card offset 33KB ============================================== $sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=33 conv=sync $sudo dd if=u-boot.itb of=/dev/sd[x] bs=1024 seek=384 conv=sync Boot ==== Set Boot switch on base board iMX8M-MB to SD boot: SW1[8:1]: OFF OFF OFF ON - OFF ON OFF OFF SW4[2:1]: OFF OFF J4: 1,2 - open; 3,4 - close; 5,6 - open