[OpenWrt-Devel] raspberry pi v3.19

[Álvaro Fernández Rojas]

The pins you said are the right ones. However, if anything fails before the kernel is booted you won't get any output. You could try booting a 3.14 image and check if you are properly connected to the uart.

It may be some wrong configuration related to the recently added DT support, which expects a DTB and since no DTB is passed from the bootloader, the kernel crashes before any output.

> El 10/2/2015, a las 6:29, John Crispin <blogic at openwrt.org> escribió:
> 
> ok, so uart, how do you connect it ?
> 
>> On 10/02/2015 02:02, Álvaro Fernández Rojas wrote:
>> I tried adding support for 3.18 and I have issues booting the raspberry. There must be something wrong with the new mmc driver, because it detects the SD card insertions/extractiones, but doesn't read the partitions:
>> http://pastebin.com/GWFYrXnT
>> 
>> My patches:
>> http://files.noltari.es/openwrt/bcm2708/brcm2708_3-18.tgz
>> 
>> Regards,
>> Álvaro.
>> 
>>> El 09/02/2015 a las 18:12, Florian Fainelli escribió:
>>>> On Feb 9, 2015 4:25 AM, "John Crispin" <blogic at openwrt.org <mailto:blogic at openwrt.org>> wrote:
>>>> 
>>>> Hi,
>>>> 
>>>> i synced our rpi port with the upstream tree on github. it boots and i
>>>> can see the coloured palette test pic on the hdmi, however ethernet
>>>> fails to come up. i attached a uart just to find out that my rpi is
>>>> either broken or i am connecting it wrong.
>>>> 
>>>> has anyone managed to get uart working ? to my understanding i need to
>>>> connect pin6 to gnd and use 8 and 10 for the 2 data lines. should i see
>>>> output from the bootloader prior to board detecting/loading the sd card
>>> 
>>> You will not get any UART output prior to the kernel boot, the GPU boot code does not output anything (at least not in the builds we use).
>>> 
>>> Could you share the boot log to see if there is anything obvious?
>>> 
>>>> 
>>>>        John
>>>> _______________________________________________
>>>> openwrt-devel mailing list
>>>> openwrt-devel at lists.openwrt.org <mailto:openwrt-devel at lists.openwrt.org>
>>>> https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> openwrt-devel mailing list
>>> openwrt-devel at lists.openwrt.org
>>> https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
>>> 
_______________________________________________
openwrt-devel mailing list
openwrt-devel at lists.openwrt.org
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel