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At present if CONFIG_SPL_GPIO_SUPPORT is enabled then the GPIO uclass is included in SPL/TPL without any control for boards. Some boards may want to disable this to reduce code size where GPIOs are not needed in SPL or TPL. Add a new Kconfig option to permit this. Default it to 'y' so that existing boards work correctly. Change existing uses of CONFIG_DM_GPIO to CONFIG_IS_ENABLED(DM_GPIO) to preserve the current behaviour. Also update the 74x164 GPIO driver since it cannot build with SPL. This allows us to remove the hacks in config_uncmd_spl.h and Makefile.uncmd_spl (eventually those files should be removed). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
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| .. | ||
| imx8qm_mek.c | ||
| imximage.cfg | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
| spl.c | ||
| uboot-container.cfg | ||
U-Boot for the NXP i.MX8QM EVK board Quick Start =========== - Build the ARM Trusted firmware binary - Get scfw_tcm.bin and ahab-container.img - Build U-Boot - Flash the binary into the SD card - Boot Get and Build the ARM Trusted firmware ====================================== $ git clone https://source.codeaurora.org/external/imx/imx-atf $ cd imx-atf/ $ git checkout origin/imx_4.14.78_1.0.0_ga -b imx_4.14.78_1.0.0_ga $ make PLAT=imx8qm bl31 Get scfw_tcm.bin and ahab-container.img ============================== $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/imx-sc-firmware-1.1.bin $ chmod +x imx-sc-firmware-1.1.bin $ ./imx-sc-firmware-1.1.bin $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.0.bin $ chmod +x firmware-imx-8.0.bin $ ./firmware-imx-8.0.bin Copy the following binaries to U-Boot folder: $ cp imx-atf/build/imx8qm/release/bl31.bin . $ cp u-boot/u-boot.bin . Copy the following firmwares U-Boot folder : $ cp firmware-imx-7.6/firmware/seco/ahab-container.img . $ cp imx-sc-firmware-0.7/mx8qm-mek-scfw-tcm.bin . Build U-Boot ============ $ make imx8qm_mek_defconfig $ make flash.bin Flash the binary into the SD card ================================= Burn the flash.bin binary to SD card offset 32KB: $ sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=32 Boot ==== Set Boot switch SW2: 1100.