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)
Unified · Split
| @@ -423,7 +423,7 @@ · 422 unmodified lines | ||
| 423 | 423 | vcc4-supply = <&sys_3v3_reg>; |
| 424 | 424 | vcc5-supply = <&sys_3v3_reg>; |
| 425 | 425 | vcc6-supply = <&vio_reg>; |
| 426 | − vcc7-supply = <&sys_5v0_reg>; | |
| 426 | + vcc7-supply = <&charge_pump_5v0_reg>; | |
| 427 | 427 | vccio-supply = <&sys_3v3_reg>; |
| 428 | 428 | |
| 429 | 429 | regulators { |
| @@ -674,5 +674,14 @@ · 244 unmodified lines | ||
| 674 | 674 | regulator-max-microvolt = <3300000>; |
| 675 | 675 | regulator-always-on; |
| 676 | 676 | }; |
| 677 | + | |
| 678 | + charge_pump_5v0_reg: regulator@101 { | |
| 679 | + compatible = "regulator-fixed"; | |
| 680 | + reg = <101>; | |
| 681 | + regulator-name = "5v0"; | |
| 682 | + regulator-min-microvolt = <5000000>; | |
| 683 | + regulator-max-microvolt = <5000000>; | |
| 684 | + regulator-always-on; | |
| 685 | + }; | |
| 677 | 686 | }; |
| 678 | 687 | }; |
| @@ -201,7 +201,7 @@ · 200 unmodified lines | ||
| 201 | 201 | vcc4-supply = <&sys_3v3_reg>; |
| 202 | 202 | vcc5-supply = <&sys_3v3_reg>; |
| 203 | 203 | vcc6-supply = <&vio_reg>; |
| 204 | − vcc7-supply = <&sys_5v0_reg>; | |
| 204 | + vcc7-supply = <&charge_pump_5v0_reg>; | |
| 205 | 205 | vccio-supply = <&sys_3v3_reg>; |
| 206 | 206 | |
| 207 | 207 | regulators { |
| @@ -373,5 +373,14 @@ · 165 unmodified lines | ||
| 373 | 373 | regulator-max-microvolt = <3300000>; |
| 374 | 374 | regulator-always-on; |
| 375 | 375 | }; |
| 376 | + | |
| 377 | + charge_pump_5v0_reg: regulator@101 { | |
| 378 | + compatible = "regulator-fixed"; | |
| 379 | + reg = <101>; | |
| 380 | + regulator-name = "5v0"; | |
| 381 | + regulator-min-microvolt = <5000000>; | |
| 382 | + regulator-max-microvolt = <5000000>; | |
| 383 | + regulator-always-on; | |
| 384 | + }; | |
| 376 | 385 | }; |
| 377 | 386 | }; |