07:33 <wyre> mwalle, I'm curious, ... how it's possible to boot the sd card contents from hardware? (without bootloader, I mean)

07:38 <urja> i'm not 100% sure on what SoC we're talking about, but based on what i backtracked and looked up, it's an i.MX6, that based on some googling starts its boot from fixed boot ROM

07:38 <urja> so that's how i guess, based on whatever (boot straps? just existence of SD?) the boot ROM decides to load from an SD card

07:52 <wyre> urja, it's a Microgea MX6ULL (Engicam)

07:53 <wyre> this one https://www.engicam.com/vis-prod/MicroGEA-MX6ULL/MicroGEA-MX6ULL-i-MX-6ULL-based-Micro-SOM

07:54 <wyre> what's the boot ROM?

07:54 <mwalle> (i'm don't know that much about imx, just layerscape) but as urja said, there is usually a ROM inside the SoC which copies a portion of code from sdcard (or emmc or nand and so on) to an internal SRAM and jumps there

07:54 <mwalle> sometimes there is also execute in place possible where the contents of the external storage is mapped into a memory window and you can just jump there and skip the copy to sram step

07:55 <mwalle> wyre: hardwired code inside the SoC

08:20 <marex> wyre: the way it works on imx before 8m is that after the cpu is powered up for the first time, it jumps into bootrom

08:20 <marex> there is some hundreds for kiB of code in that

08:20 <marex> that runs, does basic init, and also implements various protocols (sd, usb gadget, the nand handling including ecc etc)

08:20 <marex> that is also what loads the SPL from SD to OCRAM and then jumps to it

08:21 <marex> wyre: if you are asking whether it is possible to do XIP from SD card, not on iMX

08:22 <marex> ... but technically, with the right SoC, it might be if you were to operate the SD in SPI mode and had SPI controller which can do XIP, but that's a lot of if

08:23 <wyre> marex, before 8m?

08:25 <wyre> and now, I was just curious about how can this boot process directly from SD card is produced 😀

08:25 <wyre> s/now/no/

08:31 <marex> wyre: imx8m changed the blob format on the SD card a bit

08:48 <marex> wyre: on mx6ul you cannot , you copy the SPL from SD to OCRAM and execute it from there

09:30 <mwalle> is stefan roese here? stefanro ?

09:32 <mwalle> i wonder what has happened to https://patchwork.ozlabs.org/project/uboot/patch/20200911165659.17908-1-dgilmore@redhat.com/, it is marked as accepted but I can't find it in master

10:08 <crb> where is the target that actually builds u-boot.img?

10:33 <mwalle> nevermind, I was confused with my local remotes

11:26 <stefanro> mwalle: so your question is solved?

11:26 <mwalle> stefanro: yes :)

11:26 <stefanro> ufff ;)

12:41 <marex> crb: Makefile:u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \