[U-Boot] socfpga: mainline cannot boot linux

[Dinh Nguyen]

On 11/06/2014 05:40 PM, Anatolij Gustschin wrote:
> Hi Dinh,
> 
> On Thu, 6 Nov 2014 17:03:48 -0600
> Dinh Nguyen <dinguyen at opensource.altera.com> wrote:
> 
>> Hi Marek,
>>
>> Have you been able to successfully boot Linux using the mainline uboot?
>> I cannot seem to be able to boot linux on the C5 SocDK.
>>
>> It starts to boot linux, but then reboots after a bit back into u-boot.
>> So I commented out #define CONFIG_HW_WATCHDOG in
>> include/configs/socfpga_cyclone5.h. That helped so that I can look that
>> __log_buf.
>> I was able to trace it down that it was not able to get a tty console,
>> because serial8250_console_setup() is failing at:
>>
>> if (!port->iobase && !port->membase)
>>
>> For reasons I haven't figured out yet, both port->iobase and
>> port->membase are NULL.
>>
>> So no debug console, but Linux is able to boot all the way to the point
>> of tyring to mount a FS.
>>
>> Perhaps some kind of memory setup issue? I've seen a thread where
>> Chin-Liang was able to boot, but I don't know if he did any other tricks.
>>
>> Just wondering if I'm missing a patch or something?
> 
> the issue could be the wrong console= argument on the kernel command
> line. In the current socfpga_config5.h I see
> 
>   #define CONFIG_BOOTARGS         "console=ttyS0" __stringify(CONFIG_BAUDRATE)
> 
> A comma is missing after "console=ttyS0"
> 
> It should be
> 
>   #define CONFIG_BOOTARGS         "console=ttyS0," __stringify(CONFIG_BAUDRATE)
> 
> Could you please test it? Thanks.

Yep, that was it! Thanks alot for seeing that.

Dinh