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Basic input/output system (BIOS) for godson blade

A Loongson Knife and initialization technology, applied in the field of BIOS, can solve problems such as difficult implementation, and achieve the effect of reduced development cost and flexible design

Inactive Publication Date: 2011-04-20
SUGON INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, to develop the blade BIOS of the Godson platform, it is difficult to completely rely on the traditional BIOS.

Method used

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  • Basic input/output system (BIOS) for godson blade
  • Basic input/output system (BIOS) for godson blade
  • Basic input/output system (BIOS) for godson blade

Examples

Experimental program
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Embodiment Construction

[0022] The invention mainly realizes the integration of two BIOS platforms, and obtains a new BIOS solution. PMON has very good support for Godson processors, so in the process of integration, it is based on PMON. Coreboot has very good support for AMD bridge chipset, so this part can be ported to PMON. Among them, the process of PMON is as follows figure 1 ;

[0023] We can see from the figure that the previous assembly code is mainly to complete the initialization of the CPU, as well as the initialization of the memory and the serial port. This facilitates debugging. This part of work is mainly implemented by PMON in the new implementation scheme. The Coreboot code is basically implemented in C language, so the memory needs to be initialized first, which provides a C operating environment. The C code in the latter part is mainly the initialization work of the bridge slice. Here it is mainly to transplant the relevant parts of coreboot to pmon. The process of Coreboot i...

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Abstract

The invention mainly aims at realizing fusion of a process monitor (PMON) basic input / output system (BIOS) and a coreboot BIOS. The invention comprises the following steps: initializing a central processing unit (CPU); initializing a south bridge chip and a north bridge chip; scanning a system bus; calling a VBIOS simulator; and loading a driver. By utilizing the invention, the defect that the traditional BIOS is not disclosed is preferably solved, and the requirements of the BIOS for the godson blade in all aspects are realized.

Description

technical field [0001] The invention provides a BIOS, in particular to a Godson blade BIOS. Background technique [0002] The currently common BIOS, such as AMI, and the BIOS based on Intel's UEFI architecture are all on the X86 development platform. Most of the traditional BIOS codes are implemented in assembly language. And it's private. Therefore, to develop the blade BIOS of the Loongson platform, it is difficult to completely rely on the traditional BIOS. Contents of the invention [0003] The invention mainly realizes the integration of PMON BIOS and coreboot BIOS. PMON is an open source BIOS, which can well support Loongson CPU; coreboot is also a popular open source BIOS, which is mainly based on the X86 platform. The Loongson blade is implemented by using the Loongson CPU combined with the AMD bridge chip, so to realize the BIOS of the Loongson blade, you can combine these two open source BIOS codes. [0004] A kind of Godson blade BIOS is characterized in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
Inventor 李丰旺郑臣明李永成尹宁宁吕民强邵宗有刘新春方信我
Owner SUGON INFORMATION IND
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