ARM: dts: imx6sx-sdb: Add 198MHz operational point
Subsystems (2)
Fabio Estevam
reviewerPATCH 1/1 ARM: dts: imx6sx-sdb: Add 198MHz operational point
From: Fabio Estevam <[email protected]>
imx6sx-sdb has custom operating points entries because it has one power supply that drives both VDDARM_IN and VDDSOC_IN.
As per the MX6UL datasheet we have the following minimum voltages for 198 MHz operation (after adding the 25mV margin value):VDDARM_IN = 0.975 VVDDSOC_IN = 1.175 V
So use 1.175V for the 198MHz operation.
--- arch/arm/boot/dts/imx6sx-sdb.dts | 2 ++ 1 file changed, 2 insertions(+)
arch/arm/boot/dts/imx6sx-sdb.dts +2 -0
@@ -18,12 +18,14 @@ 996000 1250000 792000 1175000 396000 1175000 + 198000 1175000 >; fsl,soc-operating-points = < /* ARM kHz SOC uV */ 996000 1250000 792000 1175000 396000 1175000 + 198000 1175000 >; };
Signature · 1 line
1.9.1
Shawn Guo
AppliedPATCH 1/1 ARM: dts: imx6sx-sdb: Add 198MHz operational point
Quoted 5 lines · Fabio Estevam
From: Fabio Estevam <[email protected]>
imx6sx-sdb has custom operating points entries because it has one power supply that drives both
VDDARM_INandVDDSOC_IN.
Quoted 8 lines
As per the MX6UL datasheet we have the following minimum voltages for 198 MHz operation (after adding the 25mV margin value):
VDDARM_IN= 0.975 VVDDSOC_IN= 1.175 VSo use 1.175V for the 198MHz operation.
Signed-off-by Fabio Estevam <[email protected]>
Applied, thanks.