Difference between revisions of "Creating A devicetree.cb"
Jump to navigation
Jump to search
Eocallaghan (talk | contribs) (Initial.) |
Eocallaghan (talk | contribs) (Outline) |
||
| Line 1: | Line 1: | ||
This article should help people who are writting a devicetree.cb for their system. | This article should help people who are writting a '''devicetree.cb''' for their system. | ||
== What you will need == | == What you will need == | ||
* '''lspci -nvvv''' output | |||
== Introduction == | == Introduction == | ||
| Line 12: | Line 12: | ||
When a device in '''devicetree.cb''' is found during the coreboot PCI/system scan process the functions to do customized initialization are called via the '''device_operations''' and the '''chip_operations''' structures. You will find these structures in the devices source files. | When a device in '''devicetree.cb''' is found during the coreboot PCI/system scan process the functions to do customized initialization are called via the '''device_operations''' and the '''chip_operations''' structures. You will find these structures in the devices source files. | ||
== Keywords == | |||
.. | |||
== Syntax == | |||
.. | |||
== Grammar == | |||
.. | |||
== Examples == | |||
=== NorthBridge === | |||
.. | |||
=== Super I/O === | |||
chip superio/fintek/f71869ad | |||
device pnp 4e.00 off # Floppy | |||
io 0x60 = 0x3f0 | |||
irq 0x70 = 6 | |||
drq 0x74 = 2 | |||
end | |||
device pnp 4e.01 on # COM1 | |||
io 0x60 = 0x3f8 | |||
irq 0x70 = 4 | |||
end | |||
device pnp 4e.02 off # COM2 | |||
io 0x60 = 0x2f8 | |||
irq 0x70 = 3 | |||
end | |||
device pnp 4e.03 off # Parallel Port | |||
io 0x60 = 0x378 | |||
irq 0x70 = 7 | |||
drq 0x74 = 3 | |||
end | |||
device pnp 4e.04 on # Hardware Monitor | |||
io 0x60 = 0x295 | |||
irq 0x70 = 0 | |||
end | |||
device pnp 4e.05 on # KBC | |||
io 0x60 = 0x060 | |||
irq 0x70 = 1 # Keyboard IRQ | |||
irq 0x72 = 12 # Mouse IRQ | |||
end | |||
device pnp 4e.06 off end # GPIO | |||
device pnp 4e.07 on end # BSEL | |||
device pnp 4e.0a off end # PME | |||
end # f71869ad | |||
{{Cc-by-2.5}} | |||