<br><br><div class="gmail_quote">On Thu, May 17, 2012 at 6:53 AM, sysfwlab <span dir="ltr"><<a href="mailto:sysfwlab@gmail.com" target="_blank">sysfwlab@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello Everybody, hello Henrik,<br>
<br>
Thanks a lot for you response.<br>
Good news i can confirm and demonstrate F20 can boot from SD/MMC !<br>
<br>
After reading your u-boot and linux source I build a small and<br>
minimalistic piece of code that blink all the pin can be used by UART No<br>
clock setting, no watchdog reset, only GPIO init...<br>
I use mksunxiboot to add header and push it at 8K on the SD/MMC and this<br>
work...yip ha !!!<br>
This is a real real good functionnality for this cheap cpu !<br></blockquote><div>it works on currently all allwinner chips and will work on the chips in the future.</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Here is a video and sources:<br>
<a href="http://www.sysfwlab.com/?p=242" target="_blank">http://www.sysfwlab.com/?p=242</a><br>
<br>
Now lets go to u-boot limbs...i'm trying to create the sun3i.h file and<br>
learn how to use git ;)<br>
<br>
Bin<br>
<br>
PS: i dont get a firmware of my device, but i previously dump all the<br>
nand part if needed<br>
<br>
<br>
Le 16/05/2012 21:43, Henrik Nordström a écrit :<br>
<div class="HOEnZb"><div class="h5">> ons 2012-05-16 klockan 17:13 +0200 skrev sysfwlab:<br>
><br>
>> My goal now is to build a bootable sd/mmc like for the A10.<br>
>> I try to use the "native" allwinner-u-boot and mksunxiboot to create a mmc.<br>
>> I dont got anything on the serial port, but the device dont run the<br>
>> app_demo.axf (Boot1) so i think it try to boot the mmc and probably<br>
>> crash but It seem to be a good thing ?<br>
> You probably need other DRAM parameters on this device. The DRAM<br>
> parameters is currently hardcoded in the source.<br>
><br>
>> I found a kernel patch with mach-sun3i and mach-sun4i separated, and i<br>
>> need probably confirm that sun3i got the same map registers of sun4i,<br>
>> etc...i see mmc driver différence (SUN4I,SUN5I but no SUN3I...), etc...<br>
>> but can someone already do this and got a working sun3i mmc u-boot ?<br>
> There is no stand-alone u-boot for sun3i.<br>
><br>
> Do you have a firmware file for your device?<br>
><br>
>> - Does anyone at AllWinner technology or not can confirm me i can boot<br>
>> F20 from MMC ?<br>
> If it hangs when booting u-boot-mmc then it can boot from MMC.<br>
><br>
>> - For a minimal application which put a level on GPIO do i need to<br>
>> init_clock() and clear the watch dog ?<br>
>> (Can i directly set the register to init the GPIO ?)<br>
> The over all structure is most likely similar to sun4i, but pins and<br>
> multiplex functions quite likely differ noticeably.<br>
><br>
> Regards<br>
> Henrik<br>
><br>
><br>
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