i.MX Processorsのトピックdual imx-boot support

dual imx-boot support

yellow_huang — Mon, 08 Feb 2021 10:13:06 GMT

Hi,

In imx8qxc0mek platform and based on Linux 4.14.98_2.3.3 BSP, only one imx-boot image is programmed at the address offset-32K of eMMC(or SD).

For robust upgrade and recover purpose, is it possible that imx8qxcp platform support dual(A/B) imx-boot image? to boot-up from another when one imx-boot image destroyed.

Thanks,

Re: dual imx-boot support

igorpadykov — Mon, 08 Feb 2021 11:44:08 GMT

Hi yellow_huang

one can look at description of recovery boot in sect.5.11 SD/MMC manufacture mode

i.MX 8DualXPlus/8QuadXPlus Applications Processor Reference Manual

Best regards
igor

Re: dual imx-boot support

yellow_huang — Tue, 09 Feb 2021 03:33:14 GMT

Hi Igor,

SD/MMC manufacture mode for iemmergenry recover is good, but it can't cover the boot-up sector damaged case after production deployed.

But I found sect5.9(Boot image) description that platform support primary and secondary two boot container set. ROM will try to load secondary container set to boot up if primary one authorization fail or other error. look like this behavior is good to robust booting.

Does Linux 4.14.98_2.3.3 BSP support to generate this primary/secondary combo container sets in imx-boot image? or how to modify imx-boot/imx-mkimage to meet this requirement?

Thanks,