On Sun, May 20, 2007 at 08:23:32PM -0700, Andrew Morton wrote: > On Fri, 18 May 2007 19:00:16 -0700 Yinghai Lu <[EMAIL PROTECTED]> wrote: > > > [PATCH]serial: make early_uart to use early_prarm instead of > > console_initcall > > > > Make early_uart to use early_param, so uart console can be used earlier. > > Make it to be bootconsole with CON_BOOT flag, so can use console handover > > feature. and it will switch to corresponding normal serial console > > automatically. > > new command line will be > > > > earlycon=uart,io,0x3f8,9600n8 > > earlycon=uart,io,0x3f8,9600n8 console=tty0 > > > > it will print in very early stage > > Early serial console at I/O port 0x3f8 (options '9600n8') > > later for console it will print > > console handover: boot [uart0] -> real [ttyS0] > > I'll queue this up for some testing, but I'd be a bit reluctant to send it > into Linus due to my poor understanding of what it actually does. What > _is_ an early console, and how does it differ from a non-early one?
It is someone's reimplemention of earlyprintk= for another architecture that happens to mostly work on x86 too because the code is not ifdeffed. I don't think it makes much sense on x86 though because earlyprintk exists. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
