On Thu, Oct 2, 2014 at 2:22 PM, jonsmirl@xxxxxxxxx <jonsmirl@xxxxxxxxx> wrote: > 1) temporary early boot console -- this is nothing but an address in > RAM and the x/y layout. The character set from framebuffer is built > into the kernel. The parallel to this is early-printk and how it uses > the UARTs without interrupts. This console vaporizes late in the boot > process -- the same thing happens with the early printk UART driver. > EARLYPRINTK on the command line enables this. JFYI, the early serial console can also vanish, even very early in the boot process, before the unused clocks are disabled. Cfr. http://marc.info/?l=linux-sh&m=141227657322649&w=2 So there's no safety in this world without calling clk_prepare_enable(). Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
