Messages in this thread | | | From | Bjorn Helgaas <> | Subject | Re: [PATCH]serial: make early_uart to use early_prarm instead of console_initcall | Date | Mon, 21 May 2007 12:02:59 -0600 |
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On Monday 21 May 2007 11:36:58 am Yinghai Lu wrote: > On 5/21/07, Bjorn Helgaas <bjorn.helgaas@hp.com> wrote: > > > earlycon=uart,io,0x3f8,9600n8 > > > earlycon=uart,io,0x3f8,9600n8 console=tty0 > > > earlycon=uart,mmio,0xff5e0000,115200n8 > > > > Why do we have to have a new "earlycon" argument? Why can't we just > > parse "console=uart" early? > > with console=uart, you need to call early_serial_console_init > explictly in your arch setup_arch to get early console.
Can't we just do:
early_param("console", setup_early_console);
and have setup_early_console() ignore everything except "uart"?
> with console_initcall(early_uart_console_init), the early_uart_console > will be called via console_init in start_kernel, init/main.c that is > not real early console.
I agree that's too late.
Bjorn
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