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A kind of pmic initialization method and electronic equipment

An initialization method and technology of electronic equipment, applied in the directions of boot program, program loading/starting, program control device, etc., can solve the problems of reducing development efficiency, cumbersome firmware maintenance, etc., and achieve the effect of saving equipment

Active Publication Date: 2019-06-21
FUZHOU ROCKCHIP SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventor found that in the prior art, for different prototypes with different PMICs, multiple firmwares need to be developed for the compatibility of the operating system, so the maintenance of the firmware is quite cumbersome, which reduces the development efficiency

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  • A kind of pmic initialization method and electronic equipment
  • A kind of pmic initialization method and electronic equipment
  • A kind of pmic initialization method and electronic equipment

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Embodiment Construction

[0050] In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments and accompanying drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that such aspects may be practiced without these specific details. Here is a list of some terms that appear in the text:

[0051] Device Tree: is a data structure that describes hardware;

[0052] DTS: device tree source, .dts file is a description of Device Tree in text format, .dts file can refer to (include) other .dtsi files, in this article, modifying .dts file can also refer to modifying the .dts referenced. dtsi file; DTC: device tree compiler, a tool to compile .dts into .dtb;

[0053] In the embodiment, the specific content of the p...

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Abstract

The invention relates to electronic equipment, in particular to the initialization or configuration of PMICs (Power Management Integrated Circuits) in the electronic equipment. The invention provides the electronic equipment, which comprises a first initialization module, a second initialization module, a configuration file management module and a PMIC detection module. The equipment has the advantages that a corresponding instruction can be automatically selected for initializing the PMIC according to the PMIC concretely mounted on the equipment during the system initialization; the same series of equipment can be saved; and the problem that different versions of firmware need to be maintained during the mounting of different PMICs is solved.

Description

technical field [0001] The present invention relates to electronic devices, and more particularly, the present invention relates to initialization or configuration of PMICs in electronic devices. Background technique [0002] PMU (power management unit) is a power management unit, corresponding to PMIC (Power ManagementIC) power management integrated circuit, which is used to manage the power supply equipment in the host system, and is often used in mobile phones and various mobile terminal equipment. After the CPU works normally, each module of the PMIC can be controlled through the I2C interface. [0003] At present, the embedded linux operating system uses dtb (device tree blob) files to configure board-level resources. Device Tree is a data structure describing hardware, which originated from OpenFirmware (OF). After using DeviceTree, many hardware details can be directly passed to Linux through it, without the need for a lot of redundant coding in the kernel. Device ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/4401G06F9/445
Inventor 蔡文忠
Owner FUZHOU ROCKCHIP SEMICON