ddr clock configuration through synchronous mode from external oscillator not from CPU in u-boot

[shubhasingh]

Hi,

We are having a P1021 based custom board, in which the clock input to DDR is through ddr synchronous mode from external oscillator not from CPU, i want to support this in U-boot.

I am not getting a clue where to make this change in u-boot so that it supports DDR clocking from external oscillator. Can some body please point me out on this.

Regards,

Shubha

[shubhasingh]

Thanks.

[Bulat]

Clocking mode of the DDR is set on the board level, u-boot does not require any special change. Specifically the user should set proper 'cfg_ddr_pll[0:2]' POR configuration field in accordance with the input clock source (frequency), see section 4.5.3.2 of the Ref Manual for details.

Regards,

Bulat