Keith Hui has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/61538 )
Change subject: Documentation: Add Asus P3B-F ......................................................................
Documentation: Add Asus P3B-F
Change-Id: I0cd6141bb8baa082d5558490533649f907f25dd1 Signed-off-by: Keith Hui buurin@gmail.com --- A Documentation/mainboard/asus/p3b-f.md 1 file changed, 91 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/38/61538/1
diff --git a/Documentation/mainboard/asus/p3b-f.md b/Documentation/mainboard/asus/p3b-f.md new file mode 100644 index 0000000..bdf5d18 --- /dev/null +++ b/Documentation/mainboard/asus/p3b-f.md @@ -0,0 +1,91 @@ +# ASUS P3B-F + +This page describes how to run coreboot on the ASUS P3B-F mainboard. + +## Flashing coreboot + +```eval_rst ++---------------------+---------------------------+ +| Type | Value | ++=====================+===========================+ +| Socketed flash | yes | ++---------------------+---------------------------+ +| Model | SST 39SF020A (or similar) | ++---------------------+---------------------------+ +| Size | 256 KiB | ++---------------------+---------------------------+ +| Package | DIP-32 | ++---------------------+---------------------------+ +| Write protection | no | ++---------------------+---------------------------+ +| Dual BIOS feature | no | ++---------------------+---------------------------+ +| Internal flashing | yse | ++---------------------+---------------------------+ +``` + +flashrom supports this mainboard since commit c7e9a6e15153684672bbadd1fc6baed8247ba0f6. +If you are using older versions of flashrom, below has to be done (with ACPI disabled!) +before flashrom can detect the flash chip: + +```bash + # rmmod w83781d + # modprobe i2c-dev + # i2cset 0 0x48 0x80 0x80 +``` + +## Working + +- Slot 1 and Socket 370 CPUs and their L1/L2 caches +- PS/2 keyboard with SeaBIOS (See [Known issues]) +- IDE hard drives +- USB +- PCI add-on cards +- AGP graphics cards +- Serial ports 1 and 2 +- Reboot + +## Known issues + +- PS/2 keyboard may not be usable until Linux has completely booted. With SeaBIOS + as payload, setting keyboard initialization timeout to 2500ms help. + +- The coreboot+SeaBIOS combination boots so quickly some IDE hard drives are not + yet ready by the time SeaBIOS attempts to boot from them. + +- i440BX does not support 256Mbit RAM modules. If installed, coreboot + will attempt to initialize them at half their capacity anyway + whereas vendor firmware will not boot at all. + +- ECC memory can be used, but ECC support is still pending. + +## Untested + +- Floppy +- Parallel port +- EDO memory +- ECC memory +- Infrared +- PC speaker + +## Not working + +- ACPI (Support is currently [under gerrit review](https://review.coreboot.org/c/coreboot/+/41098)) + +## Technology + +```eval_rst ++------------------+--------------------------------------------------+ +| Northbridge | :doc:`../../northbridge/intel/i440bx/index` | ++------------------+--------------------------------------------------+ +| Southbridge | i82371eb | ++------------------+--------------------------------------------------+ +| CPU | model_6xx | ++------------------+--------------------------------------------------+ +| Super I/O | winbond/w83977tf | ++------------------+--------------------------------------------------+ +``` + +## Extra resources + +[flashrom]: https://flashrom.org/Flashrom