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| Started by | Andy Yan <andy.yan@rock-chips.com> |
|---|---|
| First post | 2016-01-15 14:30 +0100 |
| Last post | 2016-01-18 00:20 +0100 |
| Articles | 3 — 2 participants |
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[PATCH v2 0/2] fix rk3066a based boards hang when cpufreq changes Andy Yan <andy.yan@rock-chips.com> - 2016-01-15 14:30 +0100
[PATCH v2 1/2] ARM: dts: rockchip: increase vdd_arm voltage for rk3066a based boards Andy Yan <andy.yan@rock-chips.com> - 2016-01-15 14:30 +0100
Re: [PATCH v2 0/2] fix rk3066a based boards hang when cpufreq changes Heiko Stuebner <heiko@sntech.de> - 2016-01-18 00:20 +0100
| From | Andy Yan <andy.yan@rock-chips.com> |
|---|---|
| Date | 2016-01-15 14:30 +0100 |
| Subject | [PATCH v2 0/2] fix rk3066a based boards hang when cpufreq changes |
| Message-ID | <qRcBX-6DV-9@gated-at.bofh.it> |
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
Changes in v2:
- move the opp table to rk3066a.dtsi, make it as the default opp table
for rk3066a based board.
- also enable the pwm regulator for bqcurie2 and Marsboard
Andy Yan (2):
ARM: dts: rockchip: increase vdd_arm voltage for rk3066a based boards
ARM: dts: rockchip: enable pwm3 as pwm regulator for rk3066a based
boards
arch/arm/boot/dts/rk3066a-bqcurie2.dts | 16 ++++++++++++++++
arch/arm/boot/dts/rk3066a-marsboard.dts | 16 ++++++++++++++++
arch/arm/boot/dts/rk3066a-rayeager.dts | 16 ++++++++++++++++
arch/arm/boot/dts/rk3066a.dtsi | 12 +++++++-----
4 files changed, 55 insertions(+), 5 deletions(-)
--
1.9.1
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| From | Andy Yan <andy.yan@rock-chips.com> |
|---|---|
| Date | 2016-01-15 14:30 +0100 |
| Subject | [PATCH v2 1/2] ARM: dts: rockchip: increase vdd_arm voltage for rk3066a based boards |
| Message-ID | <qRcBY-6DV-25@gated-at.bofh.it> |
| In reply to | #1310103 |
The current vdd_arm voltage is too low, increase it will make the system more stable. Signed-off-by: Andy Yan <andy.yan@rock-chips.com> --- Changes in v2: - move the opp table to rk3066a.dtsi, make it as the default opp table for rk3066a based board. arch/arm/boot/dts/rk3066a.dtsi | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/rk3066a.dtsi b/arch/arm/boot/dts/rk3066a.dtsi index 946f187..ff0530e 100644 --- a/arch/arm/boot/dts/rk3066a.dtsi +++ b/arch/arm/boot/dts/rk3066a.dtsi @@ -61,11 +61,13 @@ reg = <0x0>; operating-points = < /* kHz uV */ - 1008000 1075000 - 816000 1025000 - 600000 1025000 - 504000 1000000 - 312000 975000 + 1416000 1300000 + 1200000 1175000 + 1008000 1125000 + 816000 1125000 + 600000 1100000 + 504000 1100000 + 312000 1075000 >; clock-latency = <40000>; clocks = <&cru ARMCLK>; -- 1.9.1
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| From | Heiko Stuebner <heiko@sntech.de> |
|---|---|
| Date | 2016-01-18 00:20 +0100 |
| Message-ID | <qS4M2-J7-11@gated-at.bofh.it> |
| In reply to | #1310103 |
Hi Andy, Am Freitag, 15. Januar 2016, 21:23:43 schrieb Andy Yan: > 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. applied both to my dts32 branch for 4.6 Thanks Heiko
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