于 2017年5月19日 GMT+08:00 下午4:27:21, Andre Przywara <andre.przywara@xxxxxxx> 写到: >Hi, > >On 18/05/17 08:16, Icenowy Zheng wrote: >> Add support of AXP803 regulators in the Pine64 device tree, in order >to >> enable many future functionalities, e.g. Wi-Fi. >> >> Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx> >> --- >> Changes in v6: >> - Rebased on next-20170517. >> >> .../arm64/boot/dts/allwinner/sun50i-a64-pine64.dts | 109 >+++++++++++++++++++++ >> 1 file changed, 109 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts >b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts >> index 36001884ed33..40921bacb39c 100644 >> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts >> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts >> @@ -118,6 +118,115 @@ >> }; >> }; >> >> +#include "axp803.dtsi" >> + >> +®_aldo1 { >> + regulator-min-microvolt = <2800000>; >> + regulator-max-microvolt = <2800000>; >> + regulator-name = "vcc-csi"; >> +}; >> + >> +®_aldo2 { >> + regulator-always-on; >> + regulator-min-microvolt = <1800000>; >> + regulator-max-microvolt = <3300000>; >> + regulator-name = "vcc-pl"; >> +}; >> + >> +®_aldo3 { >> + regulator-always-on; >> + regulator-min-microvolt = <2700000>; >> + regulator-max-microvolt = <3300000>; >> + regulator-name = "vcc-pll-avcc"; >> +}; >> + >> +®_dc1sw { >> + regulator-name = "vcc-phy"; >> +}; >> + >> +®_dcdc1 { >> + regulator-always-on; >> + regulator-min-microvolt = <3300000>; >> + regulator-max-microvolt = <3300000>; >> + regulator-name = "vcc-3v3"; >> +}; >> + >> +®_dcdc2 { >> + regulator-always-on; >> + regulator-min-microvolt = <1000000>; >> + regulator-max-microvolt = <1300000>; >> + regulator-name = "vdd-cpux"; >> +}; >> + >> +/* DCDC3 is polyphased with DCDC2 */ >> + >> +®_dcdc5 { >> + regulator-always-on; >> + regulator-min-microvolt = <1500000>; >> + regulator-max-microvolt = <1500000>; >> + regulator-name = "vcc-dram"; >> +}; > >I think I mentioned this before, but the Pine64 has DDR3L DRAM, which >is >specified to run at 1.35V (1.36V with the 20mV granularity of the AXP). >The reset value is even (wrongly?) configured to 1.24V. > >So is there any reason you set the voltage to 1.5V? Is that what the >BSP >does? Or did you see any problems with 1.36V? I just set it based on the schematics. And 1.35v cannot be accurately achieved by dcdc5 and it's a problem whether to use 1.34v or 1.36v ;-) > >Cheers, >Andre. > >> +®_dcdc6 { >> + regulator-always-on; >> + regulator-min-microvolt = <1100000>; >> + regulator-max-microvolt = <1100000>; >> + regulator-name = "vdd-sys"; >> +}; >> + >> +®_dldo1 { >> + regulator-min-microvolt = <3300000>; >> + regulator-max-microvolt = <3300000>; >> + regulator-name = "vcc-hdmi"; >> +}; >> + >> +®_dldo2 { >> + regulator-min-microvolt = <3300000>; >> + regulator-max-microvolt = <3300000>; >> + regulator-name = "vcc-mipi"; >> +}; >> + >> +®_dldo3 { >> + regulator-min-microvolt = <3300000>; >> + regulator-max-microvolt = <3300000>; >> + regulator-name = "avdd-csi"; >> +}; >> + >> +®_dldo4 { >> + regulator-min-microvolt = <3300000>; >> + regulator-max-microvolt = <3300000>; >> + regulator-name = "vcc-wifi"; >> +}; >> + >> +®_eldo1 { >> + regulator-min-microvolt = <1800000>; >> + regulator-max-microvolt = <1800000>; >> + regulator-name = "cpvdd"; >> +}; >> + >> +®_eldo3 { >> + regulator-min-microvolt = <1800000>; >> + regulator-max-microvolt = <1800000>; >> + regulator-name = "vdd-1v8-csi"; >> +}; >> + >> +®_fldo1 { >> + regulator-min-microvolt = <1200000>; >> + regulator-max-microvolt = <1200000>; >> + regulator-name = "vcc-1v2-hsic"; >> +}; >> + >> +®_fldo2 { >> + regulator-always-on; >> + regulator-min-microvolt = <1100000>; >> + regulator-max-microvolt = <1100000>; >> + regulator-name = "vdd-cpus"; >> +}; >> + >> +®_rtc_ldo { >> + regulator-name = "vcc-rtc"; >> +}; >> + >> /* On Exp and Euler connectors */ >> &uart0 { >> pinctrl-names = "default"; >> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html