[coreboot-gerrit] Change in coreboot[master]: rockchip: rk3399: enable DPLL SSC for DDR EMI test on bob

[Caesar Wang (Code Review)]

Hello Julius Werner, Philip Chen, build bot (Jenkins),

I'd like you to reexamine a change.  Please visit

https://review.coreboot.org/19557

to look at the new patch set (#3).

Change subject: rockchip: rk3399: enable DPLL SSC for DDR EMI test on bob
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rockchip: rk3399: enable DPLL SSC for DDR EMI test on bob

Spread Spectrum Modulator(SSMOD) is a fully-digital circuit used to
modulate the frequency of the Silicon Creations’ Fractional PLL in order
to reduce EMI.

We need to turn the DPLL spread spectrum feature on to
reduce the EMI noise for DDR on bob.

Change-Id: I75461d4235bcf55324e6664a1220754e770b4786
Signed-off-by: Xing Zheng 
Signed-off-by: Caesar Wang 
---
M src/soc/rockchip/rk3399/Kconfig
M src/soc/rockchip/rk3399/clock.c
2 files changed, 65 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/57/19557/3