On Mon, Sep 25, 2023 at 11:00 AM Rogan Dawes rogan@dawes.za.net wrote:
I see absolutely nothing in the console.
I’m wondering whether I can possibly execute the vendor SPL with a modern u-boot?
The old U-Boot vendor does not use SPL. It uses an old mechanism called bootlets.
I suggest that we start from scratch with this imx28-wink-hub support that I have just added: https://github.com/fabioestevam/u-boot/commits/wink
To build it:
make imx28-wink-hub_defconfig make u-boot.sb
Then try to load u-boot.sb via mxsldr.
If it still fails, then I suspect that the power management unit (PMU) may be incorrectly configured causing the board to not power up.
Try playing with the CONFIG_SPL_MXS_PMU_ options.
From configs/imx28_xea_defconfig, for example:
CONFIG_SPL_MXS_PMU_MINIMAL_VDD5V_CURRENT=y CONFIG_SPL_MXS_PMU_DISABLE_BATT_CHARGE=y # CONFIG_SPL_MXS_PMU_ENABLE_4P2_LINEAR_REGULATOR is not set