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openaia / u-boot

OpenAIA U-Boot Tree
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u-boot: Detect CPU revision #2

Open openedev opened 7 months ago

openedev commented 7 months ago

Reference:

https://github.com/radxa/kernel/blob/linux-5.10-gen-rkr4.1/drivers/cpufreq/rockchip-cpufreq.c#L231
  1. Find the CPU version
  2. Print the found CPU

sample log

CPU:   Rockchip RK3588J rev1.2 at 792MHz
CPU:   Industrial temperature grade (-40C to +85C) at 28C
  1. Enable SPL multi DTB for Neu6a, Neu6b
  2. Load the right dtb based on the found CPU
  3. Support this in Mainline as well BSP U-boot.
openedev commented 7 months ago 
SoM 6:  NCM6B or Neu6b: RK3588J
Som 12: NCM6A or Neu6A: RK3588
openedev commented 7 months ago 
git clone https://github.com/rockchip-linux/rkbin.git
git clone https://github.com/openaia/u-boot && cd u-boot
export BL31=../rkbin/bin/rk35/rk3588_bl31_v1.40.elf
export ROCKCHIP_TPL=../rkbin/bin/rk35/rk3588_ddr_lp4_2112MHz_lp5_2736MHz_v1.12.bin
make neu6b-io-rk3588_defconfig
make -j 16
sudo dd if=u-boot-rockchip.bin of=/dev/sdX seek=64 && sudo sync