• Y
    x86: usb debug port early console, v4 · 5c05917e
    Yinghai Lu 提交于
    based on work from Eric, and add some timeout so don't dead loop when debug
    device is not installed
    
    v2: fix checkpatch warning
    v3: move ehci struct def to linux/usrb/ehci_def.h from host/ehci.h
        also add CONFIG_EARLY_PRINTK_DBGP to disable it by default
    v4: address comments from Ingo, seperate ehci reg def moving to another patch
        also add auto detect port that connect to debug device for Nvidia
        southbridge
    Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Andi Kleen <andi@firstfloor.org>
    Cc: "Arjan van de Ven" <arjan@infradead.org>
    Cc: "Eric W. Biederman" <ebiederm@xmission.com>
    Cc: "Greg KH" <greg@kroah.com>
    Signed-off-by: NIngo Molnar <mingo@elte.hu>
    5c05917e
early_printk.c 22.7 KB