Create 2 partitions on SD-Card.
First partition FAT16 - 16MB
Second partiton EXT4 - rest of the space.
Then as root:
dd if=sunxi-spl.bin of=/dev/sdX bs=1024 seek=8
dd if=u-boot.bin of=/dev/sdX bs=1024 seek=32
(sdX) is your card, be careful and double check
Copy script.bin, uImage and uEnv.txt to your first partition (FAT16).
Put sdcard to your tablet and finger crossed.
You will see kernel log booting and loading all the drivers.
It will stop at mounting filesystem because there is none.
Now, grab some core rootfs(debian,ubuntu,etc..) and put it to EXT4
partition (you will need to make some changes depending on distro).
Provided files:
sunxi-spl.bin:
https://mega.co.nz/#!7wJVwCBR!CiEFKGVPSHE-CnMuAUhWUltS22MyJw9hRpbVDhTYB1ou-boot.bin:
https://mega.co.nz/#!e5ZEVbwY!FKLsrHKZQW9lSQvXpphhGHvKkU15iHrITos5j-sAkSY
script.bin :
https://mega.co.nz/#!CkY0TYiC!V7jIiRxHxjto9A75tc0BNUFM1UlpzHzHXvTUnrbOT8s
In the attachemnt: uEnv.txt
For the uImage, you must compile for yourself, read the wiki :)
On Saturday, May 10, 2014 9:37:49 AM UTC+2, Bharath Rao wrote:
>
>
>
> On Friday, 9 May 2014 20:36:26 UTC+5:30, Luc Verhaegen wrote:
>>
>> On Fri, May 09, 2014 at 06:20:09AM -0700, brkr1989 wrote:
>> >
>> > I read the pages and was able to retreive the bootloader(u-boot.bin)
>> and a
>> > bunch of files from the MicroMax P300 Tab. Could you suggest some pages
>> > where I can get info on changing boot location from Nand to sd card ?
>> Or
>> > How I can go about changing it ?
>>
>> I see no evidence of any activity of yours on the wiki, you must have
>> only browsed that wiki page i linked you to.
>>
>> No wiki work, no patches == no help.
>>
>
>> Luc Verhaegen.
>>
>
>
> Here is the link to the wiki page
> http://linux-sunxi.org/Manufacturer_Device. I am currently reading kernel
> building howto. Now, I would like to know how or where I can find
> information on changing boot priority from nand flash to sdcard. Could you
> guide me on this ?
>
> Bharath Rao
>
>
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console=tty0
fexfile=script.bin
kernel=uImage
extraargs=console=ttyS0,115200
boot_mmc=fatload mmc 0 0x43000000 ${fexfile}; fatload mmc 0 0x48000000
${kernel}; bootm 0x48000000
