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ARM: tegra: apalis/colibri t30: fix on-module 5v0 supplies
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Working on Gigabit/PCIe support in U-Boot for Apalis T30 I realised
that the current device tree source includes for our modules only
happen to work due to referencing the on-carrier 5v0 supply from USB
which is not at all available on-module. The modules actually contain
TPS60150 charge pumps to generate the PMIC required 5 volts from the
one and only 3.3 volt module supply. This patch fixes this.

(Note: When back-porting this to v3.16 stable releases, simply drop the
change to tegra30-apalis.dtsi; that file was added in v3.17)

Cc: <[email protected]> #v3.16+
Signed-off-by: Marcel Ziswiler <[email protected]>
Signed-off-by: Stephen Warren <[email protected]>
Signed-off-by: Olof Johansson <[email protected]>
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ziswiler authored and olofj committed Aug 24, 2014
1 parent 9d0b1f3 commit caa9eac
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Showing 2 changed files with 20 additions and 2 deletions.
11 changes: 10 additions & 1 deletion arch/arm/boot/dts/tegra30-apalis.dtsi
Original file line number Diff line number Diff line change
Expand Up @@ -423,7 +423,7 @@
vcc4-supply = <&sys_3v3_reg>;
vcc5-supply = <&sys_3v3_reg>;
vcc6-supply = <&vio_reg>;
vcc7-supply = <&sys_5v0_reg>;
vcc7-supply = <&charge_pump_5v0_reg>;
vccio-supply = <&sys_3v3_reg>;

regulators {
Expand Down Expand Up @@ -674,5 +674,14 @@
regulator-max-microvolt = <3300000>;
regulator-always-on;
};

charge_pump_5v0_reg: regulator@101 {
compatible = "regulator-fixed";
reg = <101>;
regulator-name = "5v0";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-always-on;
};
};
};
11 changes: 10 additions & 1 deletion arch/arm/boot/dts/tegra30-colibri.dtsi
Original file line number Diff line number Diff line change
Expand Up @@ -201,7 +201,7 @@
vcc4-supply = <&sys_3v3_reg>;
vcc5-supply = <&sys_3v3_reg>;
vcc6-supply = <&vio_reg>;
vcc7-supply = <&sys_5v0_reg>;
vcc7-supply = <&charge_pump_5v0_reg>;
vccio-supply = <&sys_3v3_reg>;

regulators {
Expand Down Expand Up @@ -373,5 +373,14 @@
regulator-max-microvolt = <3300000>;
regulator-always-on;
};

charge_pump_5v0_reg: regulator@101 {
compatible = "regulator-fixed";
reg = <101>;
regulator-name = "5v0";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-always-on;
};
};
};

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