Difference between revisions of "Creating A devicetree.cb"

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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
* '''lspci -nvvv''' output


== Introduction ==
== Introduction ==
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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}}

Revision as of 09:21, 18 February 2014