On 09.11.2013 18:04, Aaro Koskinen wrote:
> Hi,
>
> On Apple Xserve G5, the device tree looks like this with Linux v3.12:
>
> /proc/device-tree/ht@0,f2000000/pci@3/mac-io@7/escc@13000/ch-b@13000
> /proc/device-tree/ht@0,f2000000/pci@3/mac-io@7/escc@13000/ch-a@13020
>
> Linux picks the ch-a as the first serial port:
>
> [ 2.288585] 0.00013020:ch-a: ttyS0 at MMIO 0x80013020 [...]
>
> Also in Open Firmware the primary serial port seems to be ch-a (there
> is only one port in the box anyway). However, that won't work in GRUB
> and I need to say "serial escc-ch-b --speed=57600" to get the serial
> console working.
>
> It would seem that GRUB 2.00 has ch-a and ch-b the other way round:
>
> add_device (macio_addr[2] + escc_addr[0] + 32, 1);
> add_device (macio_addr[2] + escc_addr[0], 0);
>
> [...]
>
> add_device (grub_addr_t addr, int channel)
>
> [...]
>
> port->name = grub_xasprintf ("escc-ch-%c", channel + 'a');
>
> Is this a bug or maybe I have missed something?
>
It is a bug: I must have exchanged add_device's in order to make order
right but it didn't work since I forgot to change the argument.
Fixed, thanks.
On another note: your message was stuck in spambox, I've seen it only
because I was looking for another message in spambox. Apparently iki.fi
is on some blacklist.
> A.
> 
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