Hello 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 (#2).
Change subject: rockchip: rk3399: enable DPLL SSC for DDR EMI test on bob ......................................................................
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.
BRANCH=none BUG=b:37262721 TEST=mem checks the register value on bob. localhost / # mem r 0xff76004c 0x00000100 localhost / # mem r 0xff760050 0x00000860 TEST=Test with memtester/s2r on bob.
Change-Id: I75461d4235bcf55324e6664a1220754e770b4786 Signed-off-by: Xing Zheng zhengxing@rock-chips.com Signed-off-by: Caesar Wang wxt@rock-chips.com --- 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/57/19557/2