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https://github.com/AsahiLinux/u-boot
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5865d14dde
1. set SCHED.rdwr_idle_gap=0 2. set SCHED.pageclose=1 Reviewed-by: Jacky Bai <ping.bai@nxp.com> Signed-off-by: Jian Li <jian.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> |
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| .. | ||
| imx8mp_evk.c | ||
| Kconfig | ||
| lpddr4_timing.c | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
| spl.c | ||
U-Boot for the NXP i.MX8MP EVK board Quick Start =========== - Build the ARM Trusted firmware binary - Get the firmware-imx package - Build U-Boot - Boot Get and Build the ARM Trusted firmware ====================================== Note: $(srctree) is the U-Boot source directory Get ATF from: https://source.codeaurora.org/external/imx/imx-atf branch: imx_5.4.3_2.0.0 $ make PLAT=imx8mp bl31 $ sudo cp build/imx8mp/release/bl31.bin $(srctree) Get the ddr firmware ==================== $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.7.bin $ chmod +x firmware-imx-8.7.bin $ ./firmware-imx-8.7 $ sudo cp firmware-imx-8.7/firmware/ddr/synopsys/lpddr4_pmu_train_1d_dmem_201904.bin $(srctree)/lpddr4_pmu_train_1d_dmem.bin $ sudo cp firmware-imx-8.7/firmware/ddr/synopsys/lpddr4_pmu_train_1d_imem_201904.bin $(srctree)/lpddr4_pmu_train_1d_imem.bin $ sudo cp firmware-imx-8.7/firmware/ddr/synopsys/lpddr4_pmu_train_2d_dmem_201904.bin $(srctree)/lpddr4_pmu_train_2d_dmem.bin $ sudo cp firmware-imx-8.7/firmware/ddr/synopsys/lpddr4_pmu_train_2d_imem_201904.bin $(srctree)/lpddr4_pmu_train_2d_imem.bin Build U-Boot ============ $ export CROSS_COMPILE=aarch64-poky-linux- $ make imx8mp_evk_defconfig $ export ATF_LOAD_ADDR=0x960000 $ make flash.bin Burn the flash.bin to the MicroSD card at offset 32KB $sudo dd if=flash.bin of=/dev/sd[x] bs=1K seek=32; sync Boot ==== Set Boot switch to SD boot Use /dev/ttyUSB2 for U-Boot console