9 Dec
2014
9 Dec
'14
7:19 p.m.
Hi Simon,
On 04/12/14 15:53, Simon Glass wrote:
[715.979284 HC 0xd2]
This is a reboot command - EC_CMD_REBOOT_EC. I wonder how/why your U-Boot might issue that command?
From my investigation, Coreboot is issuing this reboot command, because the Coreboot payload (which in my case is U-Boot) for some reason isn't valid. With CONFIG_PANIC_HANG defined there is no UART output from the EC at all. Is a prepended SPL needed before the U-Boot+DTB payload?
When flashing U-Boot from the Chromium OS branch it gives some UART output but freezes because SPI and MMC driver are not working properly ("emerge-nyan chromeos-u-boot"). Is this the best starting point to develop a working U-Boot?
Regards, Simon