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OMAP 4460 dplls

Other Parts Discussed in Thread: 4460

Hi,

At the beginning I would like to say sorry, if this is wrong forum (I have only read permission to omap forum).

I'm having problem with set up, correct MPU dplls for pandaboard 4460 ES rev B3.  

For frequency 921.6 it works, but it doesn't work for frequency 1200MHz (I think it's somehow connected to frequency above 1GHz)

My settings for 1200Mhz are:
M = 125, N = 7 in CM_CLKSEL_DPLL_MPU and DCC_EN[22] enabled.
CM_AUTOIDLE_DPLL_MPU[2:0] AUTO_DPLL_MODE - 0x0

Problem appears when I setup DCC_EN bit, kernel doesn't boot up. 
does someone successfully configured Pandaboard ES for 1200Mhz?

Also additional question about voltages, I know that when I change cpu frequency, the voltages should be configured accordingly. I can't find registers in which this voltages should be set up. Any ideas really appreciated,

Thx in advance,











(according to TRM values should be M = 24, N = 9, M2 = 1, it works.