[LinuxBIOS] [linux-usb-devel] [RFC][PATCH 0/2] x86_64 Early usb debug port support.

Yinghai Lu yinghai.lu at amd.com
Wed Dec 13 08:00:25 CET 2006


On 12/8/06, Eric W. Biederman <ebiederm at xmission.com> wrote:
>
> Your or I missed a bug fix/enhancement in there somewhere.
>

I found the problem. the __set_fixmap need to __va, so the entries
will be referred from PAGE_OFFSET.

solution will be
1. move enable_dbgp_console from setup_early_printk, and call it from
setup_arch after init_memory_mapping.
2. or make __set_fixmap can use __pa or pa()+__START_KERNEL_map in
addtion to _va.

please check attached updated patch that is your patch plus 1.

YH
-------------- next part --------------
A non-text attachment was scrubbed...
Name: usb_debug.patch
Type: text/x-patch
Size: 21884 bytes
Desc: not available
URL: <http://www.coreboot.org/pipermail/coreboot/attachments/20061212/341e2142/attachment.patch>


More information about the coreboot mailing list