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External equipment resetting method based on Loongson processor

A technology of Loongson processor and external equipment, applied in the direction of data reset device, response error generation, etc., can solve the problems of external equipment reset failure and so on

Active Publication Date: 2021-04-16
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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  • External equipment resetting method based on Loongson 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 an external equipment resetting method based on a Loongson processor, which comprises the following steps: self-checking external equipment through the Loongson processor, and judging whether the external equipment is normal or not; if yes, sending a firmware starting success instruction to the single-chip microcomputer through the Loongson processor; and if the single-chip microcomputer does not receive the firmware starting success instruction, performing reset operation on the Loongson processor. In an existing external device reset method, a Loongson processor cannot be reset actively, while the external device reset method based on the Loongson processor is provided with a multi-stage reset mechanism, so that the reset function of DDR and bridge chip devices achieved through watchdog and the soft reset of the external device connected with a PCIe port achieved through link training are achieved, and board card-level cold reset is realized through a firmware-level serial port communication mechanism, so that autonomous reset of the Loongson processor can be realized.

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 Applications(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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