Hi folks,
I'm looking at the PLL configuration on a DM8127 based system. In the datasheet, for the various OPPs available (7.2.2.1 of the 8127 datasheet), there are maximum frequencies listed for each of the different hardware blocks. I'm trying to map these onto PLLs within the PRCM module.
The current understanding that I have is:
1. ARM - MPUPLL.
2. DSP - DSPPLL.
3. HDVICP - HDVCIPPLL.
4. HDVPSS - DSSPLL. (?)
5. ISS - ISPPLL (?)
6. MediaController - ISSPLL/2 (?)
7. L3/L4 Core - L3PLL.
8. DDR - DDRPLL.
Are (4),(5) and (6) correct in the above list?
Also, these clocks are normally configured in U-boot. I would like to, if possible reconfigure clocks (2),(3),(4),(5) and (6 as a result of changing 5) when Linux boots (but before any firmware has been downloaded to the media controller).
If this is possible, is there any example code that shows how this is done?
Thanks in advance,
Regards,
Terry
