Re: [U-Boot] [PATCH v2 1/7] rockchip: rk3399: update PPLL and pmu_pclk frequency

On 8 September 2016 at 19:19, Kever Yang kever.yang@rock-chips.com wrote:

Update PPLL to 676MHz and PMU_PCLK to 48MHz, because:

1. 48MHz can make sure the pwm can get exact 50% duty ratio, but 99MHz

can not, 2. We think 48MHz is fast enough for pmu pclk and it is lower power cost than 99MHz, 3. PPLL 676 MHz and PMU_PCLK 48MHz are the clock rate we are using internally for kernel,it suppose not to change the bus clock like pmu_pclk in kernel, so we want to change it in uboot.

Signed-off-by: Kever Yang kever.yang@rock-chips.com

Changes in v2: None

arch/arm/include/asm/arch-rockchip/cru_rk3399.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

Acked-by: Simon Glass sjg@chromium.org