Re: QEMU serial still broken in -rc1.

[John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>]

Hi Rob!

On Sun, May 14, 2017 at 09:46:07PM -0500, Rob Landley wrote:
> I refer to the previous thread, which is still the case:
> 
> http://www.spinics.net/lists/linux-sh/msg51190.html
> 
> I poked at QEMU's internals to see if there was an easy way to fiddle
> with stuff, but A) ttySC1 appears to be the only serial type the board
> emulates, B) the ttySC0 instance is broken, dunno why.

I gave it a try myself now and I can't get the emulated machine to
boot or show any output over the serial console.

It hangs here:

root@nofan:~/sh4-system> qemu-system-sh4 -M r2d -m 1000M -drive file=sh4-system.img,format=qcow2 -nographic -append "root=/dev/sda1 rw console=ttySC0 earlyprintk=sh-sci.1" -kernel vmlinux-3.18.0-trunk-sh7751r 
long read to SH7750_WCR1_A7 (0x000000001f800008) ignored
long read to SH7750_WCR2_A7 (0x000000001f80000c) ignored
long read to SH7750_WCR3_A7 (0x000000001f800010) ignored
long read to SH7750_MCR_A7 (0x000000001f800014) ignored
long read to SH7750_MCR_A7 (0x000000001f800014) ignored

Any ideas?

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
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`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
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