The DA9063 PMIC inside the ConnectCore 6 contains:
-
Six DC-DC buck converters
-
BUCKCORE1 powers the ARM power domain of the i.MX6 CPU internal regulator.
-
BUCKCORE2 powers the SOC and PU power domains of the i.MX6 CPU internal regulator.
-
BUCKPRO powers the DDR3 memory.
-
BUCKMEM powers the DDR3 memory.
-
BUCKIO powers the wireless chipset on the ConnectCore 6.
-
BUCKPERI powers the ConnectCore 6 carrier board peripherals.
-
-
11 programmable low drop-out (LDO) regulators, with the following available at the module pads:
-
LDO3 supplies the MCA processor on the ConnectCore 6, if available.
-
LDO4 supplies the Ethernet PHY on the ConnectCore 6 SBC.
-
LDO6 supplies the PCIe interface in the ConnectCore 6 SBC.
-
LDO7 is not in use on the ConnectCore 6 SBC.
-
LDO8 is not in use on the ConnectCore 6 SBC.
-
Kernel configuration
You can manage the DA9063 regulator driver support through the kernel configuration option Dialog Semiconductor DA9063 regulators (CONFIG_REGULATOR_DA9063
).
This option is enabled as built-in on the ConnectCore 6 SBC kernel configuration file.
Kernel driver
The DA9063 regulator driver for the ConnectCore 6 is located at drivers/regulator/da9063-regulator.c
Device tree bindings and customization
The DA9063 regulator device tree binding is documented at Documentation/devicetree/bindings/regulator/da9063-regulator.txt
.
The DA9063 regulators are defined in the ConnectCore 6 device tree file.
pmic_dialog: dialog@58 {
compatible = "dlg,da9063";
reg = <0x58>;
interrupt-parent = <&gpio7>;
interrupts = <12 2>;
interrupt-controller;
#interrupt-cells = <1>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic_dialog>;
[...]
regulators {
compatible = "dlg,da9063-regulator";
bcore1: bcore1 {
regulator-name = "DA9063_BCORE1";
regulator-boot-on;
regulator-always-on;
};
[...]
};
};