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A method for external device reset based on Godson processor

A technology of Loongson processor and external equipment, which is applied in the direction of data reset device and the generation of response errors, and can solve problems such as reset failure of external equipment.

Active Publication Date: 2021-08-17
湖南博匠信息科技有限公司
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method for resetting external devices based on the Loongson processor, aiming to solve the problem that the external device reset fails when the Loongson processor is abnormal

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  • A method for external device reset based on Godson processor

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no. 1 example

[0043] see figure 1 , a first embodiment of a method for resetting an external device based on a Godson processor, comprising the following steps:

[0044] Step S10, performing a self-check on the external device through the Loongson processor, and judging whether the external device is normal;

[0045] Step S20, if yes, send a firmware startup success instruction to the single-chip microcomputer through the Godson processor;

[0046] Step S30, if the single-chip microcomputer does not receive the instruction of successful startup of the firmware, reset the Loongson processor.

[0047] In the technical solution of the present invention, it is judged whether the external device is in a normal state according to whether the Loongson processor receives the firmware boot success instruction, and the Loongson processor is reset according to the judgment result. During the operation of the device, if the external device is abnormal, it is often considered whether the external devi...

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Abstract

The invention discloses a method for resetting an external device based on a Loongson processor, which includes: self-checking the external device through the Loongson processor, and judging whether the external device is normal; if so, sending a firmware startup success instruction to the single-chip microcomputer through the Loongson processor ; If the single-chip microcomputer does not receive the firmware startup success command, then reset the Godson processor. In the existing external device reset method, it is impossible to actively reset the Godson processor itself, but the present invention sets a multi-level reset mechanism based on the external device reset method of the Godson processor, which not only resets the DDR and the bridge chip device through the watchdog Function, soft reset of external devices connected to the PCIe port through link training, and board-level cold reset through firmware-level serial communication mechanism, so as to realize the autonomous reset of the Loongson processor.

Description

technical field [0001] The invention relates to the technical field of device reset, in particular to a method for resetting an external device based on a Godson processor. Background technique [0002] With the development of information technology, the performance and environment of domestic processors are becoming more and more perfect, and the demand and application are becoming more and more extensive. The application scenarios and number of Loongson processors are increasing day by day. At the same time, there are more and more external devices for Godson processors, and the requirements for the stability of external devices are also getting higher and higher. In order to improve the stability and qualified rate of the external equipment of the Godson processor, it is necessary to perform different reset processes for different scenarios and different equipment. [0003] The current reset method based on the Loongson processor adopts the watchdog mechanism for the ext...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/24G06F11/07
Inventor 向师狮刘锡谢启友
Owner 湖南博匠信息科技有限公司
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