ROCK64 Custom OS / Bootloader development
#1
Hi all,

Looking at http://opensource.rock-chips.com/wiki_Bo....2FTF_Card I can see that the BootROM will load into memory data from 0x40 on the SD card and then hand control to that second stage boot loader. It appears that BootROM will load the first 3960 bytes (0x40 to 0x4000) for stage 2, is this correct? Can anyone point me to source code for or a binary of idbspl.img or idbloader.img so I can examine a typical stage 2?

I am interested in developing my own OS from scratch, so I would like to write my own stage 2 bootloader and proceed from there.

Thanks for all your help. Smile
#2
(05-01-2018, 10:09 AM)poeufr Wrote: Hi all,

Looking at http://opensource.rock-chips.com/wiki_Bo....2FTF_Card I can see that the BootROM will load into memory data from 0x40 on the SD card and then hand control to that second stage boot loader. It appears that BootROM will load the first 3960 bytes (0x40 to 0x4000) for stage 2, is this correct? Can anyone point me to source code for or a binary of idbspl.img or idbloader.img so I can examine a typical stage 2?

I am interested in developing my own OS from scratch, so I would like to write my own stage 2 bootloader and proceed from there.

Thanks for all your help. Smile

You can post at Linux-Rockchip IRC and may able to get reply.


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