Hi Jared, MT8183 is able to boot from eMMC/UFS only (but not SPI-NOR). Therefore for the Kukui Chromebook, we decided to emulate eMMC from EC (which contains the bootblock). I guess the problem is that your EC doesn't contain a valid bootblock. Did you ever flash an EC image to the Chromebook?
Did you modify any Kconfig options (in particular those related to bootblock)? Please also double check if CONFIG_CONSOLE_SERIAL is enabled. On Mon, Aug 14, 2023 at 7:02 PM Paul Menzel <[email protected]> wrote: > [Cc: +Mediatek SOC maintainers] > > Dear Jared, > > > Thank you for your message. I am sorry, nobody replied yet. > > > Am 04.07.23 um 17:24 schrieb Jared Baur: > > > I am looking for some advice for configuring coreboot with a uImage > > fit payload for an mt8183 chromebook (Kukui Fennel)? I have said > > fitimage, I've modified the memlayout for the mt8183 board similar to > > > https://github.com/coreboot/coreboot/commit/22e605c2c06f553b98131a87b634709aa1818e1f > > so that the fitimage fits in the cbfs and has space to load, and > > coreboot successfully builds. I've also enabled a bunch of debug > > settings for coreboot printing to serial. When flashing the ROM and > > rebooting, the serial console doesn't show anything past bootrom > > messages like so: > > > ``` > > [DL] 00000000 00000000 010701 > > > > F0: 102B 0000 > > F3: 1006 0033 [0200] > > F3: 4001 00E0 [0200] > > F3: 0000 0000 > > V0: 0000 0000 [0001] > > 00: 1027 0002 > > 01: 0000 0000 > > BP: 0C00 0251 [0000] > > G0: 1182 0000 > > EC: 0004 0000 [0001] > > S7: 0000 0000 [0000] > > CC: 0000 0000 [0001] > > T0: 0000 00DB [000F] > > Jump to BL > > ``` > > > > I am happy to post any configuration that would be helpful. I am > > hoping to just get some serial output from coreboot at this point in > > time, regardless of the payload. > It’d be great, if you attached your configuration file and output of > `build/cbfstool build/coreboot.rom print`. > > > Kind regards, > > Paul > -- Yu-Ping Wu | Software Engineer | [email protected] | +886 937 057 080
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