ram: rk3399: Don't disable dfi dram clk for lpddr4, rank 1
The hardware for LPDDR4 with - CLK0P/N connect to lower 16-bits - CLK1P/N connect to higher 16-bits and usually dfi dram clk is configured via CLK1P/N, so disabling dfi dram clk will disable the CLK1P/N as well. So, add patch to not to disable dfi dram clk for lpddr4, with rank 1. Signed-off-by: NJagan Teki <jagan@amarulasolutions.com> Signed-off-by: NYouMin Chen <cym@rock-chips.com> Reviewed-by: NKever Yang <Kever.yang@rock-chips.com>
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