i.MX ProcessorsのトピックRe: UBOOT_CONFIG options

UBOOT_CONFIG options

Juanma1 — Fri, 17 Dec 2021 16:16:01 GMT

Hello!

I'm following i.MX Porting Guide (30 sept 2021), in the chapter "3 Porting U-Boot" -> "3.1.2 How to build and load U-Boot in Yocto Project", step 5 says:

"5. Edit the machine configuration file with UBOOT_CONFIG options."

What modifcations do I have to make here exactly?

I use XM8XL, so starting from machine imx8dxl-lpddr4-evk.conf I copy that file to my custom layer as imx8dxl-custom.conf.

The content of this file is:

require conf/machine/include/imx8dxl-evk.inc
KERNEL_DEVICETREE_BASENAME = "imx8dxl-evk"
KERNEL_DEVICETREE:append:use-nxp-bsp = " \
freescale/${KERNEL_DEVICETREE_BASENAME}-enet0.dtb \
freescale/${KERNEL_DEVICETREE_BASENAME}-enet0-tja1100.dtb \
freescale/${KERNEL_DEVICETREE_BASENAME}-inmate.dtb \
freescale/${KERNEL_DEVICETREE_BASENAME}-lcdif.dtb \
freescale/${KERNEL_DEVICETREE_BASENAME}-lpspi-slave.dtb \
freescale/${KERNEL_DEVICETREE_BASENAME}-pcie-ep.dtb \
freescale/${KERNEL_DEVICETREE_BASENAME}-root.dtb \
"
UBOOT_CONFIG_BASENAME = "imx8dxl_evk"
UBOOT_CONFIG[fspi] = "${UBOOT_CONFIG_BASENAME}_fspi_defconfig"

If I want to boot from mfgtool or eMMC should I add this?

UBOOT_CONFIG_BASENAME = "imx8dxl_evk"
UBOOT_CONFIG ??= "mfgtool"
UBOOT_CONFIG[fspi] = "${UBOOT_CONFIG_BASENAME}_fspi_defconfig"
UBOOT_CONFIG[mfgtool] = "${UBOOT_CONFIG_BASENAME}_defconfig"
UBOOT_CONFIG[emmc] = "${UBOOT_CONFIG_BASENAME}_emmc_config,sdcard"

Thanks!

Re: UBOOT_CONFIG options

joanxie — Sat, 18 Dec 2021 05:14:09 GMT

you can refer to the link as below：

“https://community.nxp.com/t5/i-MX-Processors/How-to-configure-u-boot-for-emmc/m-p/1208739#”

“https://community.nxp.com/t5/i-MX-Processors/IMX8M-error-building-uboot-for-emmc-with-Yocto/m-p/911334”

but I still suggest that you can refer to the chapter 4.5.13 How to build imx-boot image by using imx-mkimage of linux user guide, this tools is easy to build customized uboot

Re: UBOOT_CONFIG options

Juanma1 — Tue, 21 Dec 2021 16:53:14 GMT

Thanks @joanxie ,

I'm learning how imx-mkimage works.

2nd link doesn't work.

Regards!

Re: UBOOT_CONFIG options

joanxie — Wed, 22 Dec 2021 03:59:22 GMT

I send to you again:

https://community.nxp.com/t5/i-MX-Processors/IMX8M-error-building-uboot-for-emmc-with-Yocto/m-p/911334#M137344