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The following issues are encountered when using the boot loader in the default configuration. Many of the issues are because of the lack of a BIOS.
| Issue | Suggestion |
|---|---|
| DRAM sizing | The configuration code does not perform DRAM sizing. Currently, the implementation supports and has been tested on 32-MB and 128-MB configurations.
The DRAM configuration needs to be statically defined at build time. See the Geode BridgeConfig implementation. |
| VGA linear framebuffer (Flat) video driver | The boot loader does not support the flat video driver because there is no VESA BIOS implementation.
Therefore, the hardware platform's native driver, or the VGA driver, should be used. |
| MediaGX audio | The audio function on the Geode/MediaGX companion (CS5530/A) is not supported.
The audio implementation makes use of a software library, the Virtual System Architecture (VSA), which is normally implemented as part of the BIOS but is not included in the boot loader code. |
See Also
Troubleshooting the x86 ROM Boot Loader | x86 ROM Boot Loader
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