ROCK64 Custom OS / Bootloader development - Printable Version +- PINE64 (https://forum.pine64.org) +-- Forum: ROCK64 (https://forum.pine64.org/forumdisplay.php?fid=85) +--- Forum: General Discussion on ROCK64 (https://forum.pine64.org/forumdisplay.php?fid=86) +--- Thread: ROCK64 Custom OS / Bootloader development (/showthread.php?tid=6025) |
ROCK64 Custom OS / Bootloader development - poeufr - 05-01-2018 Hi all, Looking at http://opensource.rock-chips.com/wiki_Boot_option#Boot_from_SD.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. RE: ROCK64 Custom OS / Bootloader development - tllim - 05-03-2018 (05-01-2018, 10:09 AM)poeufr Wrote: Hi all, You can post at Linux-Rockchip IRC and may able to get reply. |