#u-boot on 2024-09-08 — irc logs at libera.irclog.whitequark.org

2024-08-06 00:14 Tartarus changed the topic of #u-boot to: SOURCE MOVED TO https://source.denx.de/u-boot/u-boot.git / U-Boot v2024.07, v2024.10-rc2 are OUT / Merge Window is CLOSED, next branch is OPEN / Release v2024.10 is scheduled for 07 October 2024 / Channel archives at https://libera.irclog.whitequark.org/u-boot

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04:54 <marex> swiftgeek: if you have the kernel binary, you are legally eligible to matching sources

04:55 <swiftgeek> yep, but it's still heavily outdated even at time first of release :)

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05:08 <swiftgeek> lol the uboot version I have on device is one that didn't get built with option to automatically boot from SD

05:09 <swiftgeek> few versions before/after have it but that one in particular doesn't

05:11 <swiftgeek> I will need to load it into ghidra to make sure I guess, but at the very least key combination works

05:13 <swiftgeek> mbr looks not like what I expected, uboot is outside of partitions too

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05:44 <marex> swiftgeek: U-Boot is also GPL, so the vendor has to provide you with sources matching the binary

05:44 <swiftgeek> and so far everything matches

05:48 <swiftgeek> lol

05:48 <swiftgeek> so somehow it downgraded uboot to version I don't have

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05:59 <swiftgeek> welp at least it's one of the earliest version so I know that at least key combination will work

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06:07 <swiftgeek> k, jumping to bootrom with go works fine, `go 0x000082DD`

06:09 <swiftgeek> and since that doesn't appear in sources either, now I'm really sure eMMC (or some muxing with eMMC) is getting glitched

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06:33 <swiftgeek> https://bpa.st/KYWEK

06:35 <swiftgeek> works perfectly :D

06:35 <swiftgeek> and on newer build it autoboots from card

06:37 <swiftgeek> I just need to make it into oneliner

06:37 <swiftgeek> (magic string at an offset)

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07:53 <swiftgeek> echo -n 'HMS\0\0' | dd bs=512 seek=1 conv=notrunc of=/dev/sdX

07:54 <swiftgeek> added notrunc so it's easier to edit for making image

07:55 <swiftgeek> now I'm just missing a tree where USB works, hopefully nxp has that somewhere

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08:54 <swiftgeek> nothing appears to be reachable anymore https://web.archive.org/web/20120104131351/http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX50_SW

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09:06 <swiftgeek> found some odd patch collection https://github.com/red-root/PortingARMLinux/tree/master/bootloader/u-boot-2009.08/patches

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09:15 <swiftgeek> heh https://www.mobileread.com/forums/showthread.php?p=2272493 https://github.com/fread-ink/fread-installer-u-boot/

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09:16 <swiftgeek> not entirely sure where it has USB in the source

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09:27 <swiftgeek> my goal would be to have console over usb gadget, if CONFIG_USB_TTY works like I guess would do

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09:41 <swiftgeek> ok looks like something still exists here https://github.com/nxp-imx/uboot-imx/blob/nxp/imx_v2009.08_3.0.35_4.1.0/board/freescale/mx50_rdp/mx50_rdp.c

09:41 <swiftgeek> though without docs

09:45 <swiftgeek> IMX50SDG.pdf would suggest that android package had uboot with working usb

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09:56 <swiftgeek> yay https://github.com/nxp-imx/uboot-imx/blob/nxp/imx_v2009.08_3.0.35_4.1.0/include/configs/mx50_rd3_android.h

09:58 <swiftgeek> so hopefully I can make it into CONFIG_IMX_UDC and skip FFC sourcing

09:58 <swiftgeek> err

09:58 <swiftgeek> CONFIG_USB_TTY *

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10:39 <swiftgeek> jtag_rst_b is interesting

10:43 <swiftgeek> combined with uboot, SRC_SRSR could be used to indicate that reset cam from jtag rst pin, so if that is exposed somewhere on a testpoint

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