On 2017-05-08 16:45, Andy Shevchenko wrote: > On Mon, May 8, 2017 at 3:34 PM, Jan Kiszka <jan.kiszka@xxxxxxxxxxx> wrote: >> On 2017-05-08 13:21, Andy Lutomirski wrote: > >> Yes, it's an EFI thing. Unfortunately, I didn't make >> earlycon/earlyprintk work yet. > > Quark does use HS UART for the console and we have no support for such > in x86/earlyprintk. earlycon should work if you add proper parameters > to the command line (including port base address, no ttySx), though I > don't remember if it makes really "early". Ah, that explains it. I've tried earlycon, also with the apparently correct params, but it didn't print anything in this case. And earlyprintk=efi seems to use a framebuffer, while our devices are headless... Jan -- Siemens AG, Corporate Technology, CT RDA ITP SES-DE Corporate Competence Center Embedded Linux -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
