Readback error

[Myles Watson]

All right.  With the patches that I sent for Serengeti Cheetah support
and Jordan's snserial tool
http://www.coreboot.org/index.php?title=AMD_SimNow&redirect=no#Using_the...
+ a simple patch for making it compile on my compiler (attached)...

It works!  I can run SimNOW with a SerialICE, snserial to make it go
to /dev/pts/13, and qemu with the serialice patches.  It looks like I
need to update the lua script so that I don't kill the serial port,
since this is the last thing I get:

MEM: writel fee00380 <= 00000033 *
IO: outb 002e <= 87
IO: outb 002e <= 87
IO: outb 002e <= 07
IO: outb 002f <= 02
IO: outb 002e <= 30
IO: outb 002f <= 00
IO: outb 002e <= 60

I thought I'd use gdb to skip over those, but when I use gdb to
connect (adding -s -S to the qemu command line), I get a lot of these
messages:

MEM:  readl 000c9900 => ffffffff *
Readback error! 38/39
Readback error! 63/34

Any ideas of why connecting gdb would cause readback errors on the port?

Thanks,
Myles

[Stefan Reinauer]

On 6/22/10 7:26 PM, Myles Watson wrote:
> All right.  With the patches that I sent for Serengeti Cheetah support
> and Jordan's snserial tool
> http://www.coreboot.org/index.php?title=AMD_SimNow&redirect=no#Using_the...
> a simple patch for making it compile on my compiler (attached)...
>
> It works!  I can run SimNOW with a SerialICE, snserial to make it go
> to /dev/pts/13, and qemu with the serialice patches.  It looks like I
> need to update the lua script so that I don't kill the serial port,
> since this is the last thing I get:

Can we put a version of snserial online with the patch applied?

Or should we put it in the coreboot repository?

Stefan

[Myles Watson]

On Fri, Jul 2, 2010 at 8:55 AM, Stefan Reinauer
 wrote:
> On 6/22/10 7:26 PM, Myles Watson wrote:
>
> All right.  With the patches that I sent for Serengeti Cheetah support
> and Jordan's snserial tool
> http://www.coreboot.org/index.php?title=AMD_SimNow&redirect=no#Using_the...
> a simple patch for making it compile on my compiler (attached)...
>
> Can we put a version of snserial online with the patch applied?

Sure.
> Or should we put it in the coreboot repository?

I'm not sure how many people use it, but it isn't very big.

Either way works for me.

Thanks,
Myles