[PATCH 0/2] fix rk3066a-rayeager board hang when cpufreq changes

Andy Yan andy.yan at rock-chips.com
Thu Jan 14 04:33:00 PST 2016


I found the rayeager board always hang in the system boot
process or when cpufreq change. When check the BSP code[0]
from ChipSpark, I found the current vdd_arm voltage is too
low and so is the vdd_logic voltage, which should be modulated
by PWM3.

So I increase the vdd_arm voltage and enabled pwm3 as a pwm
regulator here.

[0] https://github.com/RockchipOpensourceCommunity/px2-android-kernel-3.0/blob/master/arch/arm/mach-rkpx2/board-rkpx2-sdk.c


Andy Yan (2):
  ARM: dts: rockchip: increase vdd_arm voltage for rk3066a-rayeager
    board
  ARM: dts: rockchip: enable pwm3 as pwm regulator for rk3066a-rayeager
    board

 arch/arm/boot/dts/rk3066a-rayeager.dts | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

-- 
1.9.1





More information about the Linux-rockchip mailing list