| CE4100 Device Tree Bindings |
| --------------------------- |
| |
| The CE4100 SoC uses for in core peripherals the following compatible |
| format: <vendor>,<chip>-<device>. |
| Many of the "generic" devices like HPET or IO APIC have the ce4100 |
| name in their compatible property because they first appeared in this |
| SoC. |
| |
| The CPU nodes |
| ------------- |
| |
| cpus { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| cpu@0 { |
| device_type = "cpu"; |
| compatible = "intel,ce4100"; |
| reg = <0x00>; |
| }; |
| |
| cpu@2 { |
| device_type = "cpu"; |
| compatible = "intel,ce4100"; |
| reg = <0x02>; |
| }; |
| }; |
| |
| A "cpu" node describes one logical processor (hardware thread). |
| |
| Required properties: |
| |
| - device_type |
| Device type, must be "cpu". |
| |
| - reg |
| Local APIC ID, the unique number assigned to each processor by |
| system hardware. |
| |
| The SoC node |
| ------------ |
| |
| This node describes the in-core peripherals. Required property: |
| compatible = "intel,ce4100-cp"; |
| |
| The PCI node |
| ------------ |
| This node describes the PCI bus on the SoC. Its property should be |
| compatible = "intel,ce4100-pci", "pci"; |
| |
| If the OS is using the IO-APIC for interrupt routing then the reported |
| interrupt numbers for devices is no longer true. In order to obtain the |
| correct interrupt number, the child node which represents the device has |
| to contain the interrupt property. Besides the interrupt property it has |
| to contain at least the reg property containing the PCI bus address and |
| compatible property according to "PCI Bus Binding Revision 2.1". |
