Hi, Gerb, The current UEFI payload can support 16550 UART compatible UART only.
The serial port I/O base and type (I/O or MMIO) are passed from coreboot to the UEFI payload. In our test it is at I/O base 0x3F8 with baud rate set to 115200. The debug will be on by default if you do a debug build for the UEFI payload. Thanks Maurice -----Original Message----- From: Gerd Hoffmann [mailto:kra...@redhat.com] Sent: Thursday, May 28, 2015 8:46 AM To: Ma, Maurice Cc: Laszlo Ersek; edk2-devel list; Dong, Guo; Scott Duplichan Subject: Re: CorebootModulePkg: gcc reports conflicting types for 'CbParseAcpiTable' Hi, > CorebootPayloadPkg can support both serial port (in/out) and Framebuffer > (out) as console. serial port @ standard pc location (i.e. iobase=0x3f8)? > The debug output will be on serial port only at this point. Anything specific needed to enable it or is it on by default (in debug builds)? thanks, Gerd ------------------------------------------------------------------------------ _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel