Revision History.................................................................................................................8
1 Introduction.................................................................................................................9
1.1 Purpose and Scope..............................................................................................9
1.2 Relationship to IEEE™ 1275............................................................................11
1.3 32-bit and 64-bit Support..................................................................................11
1.4 References.........................................................................................................12
1.5 Definition of Terms...........................................................................................14
1.6 Organizationally Unique Identifiers.................................................................15
2 The Device Tree........................................................................................................16
2.1 Overview...........................................................................................................16
2.2 Device Tree Structure and Conventions...........................................................17
2.2.1 Node Names..............................................................................................17
2.2.1.1 Node Name Requirements....................................................................17
2.2.2 Generic Names Recommendation.............................................................19
2.2.3 Path Names...............................................................................................20
2.2.4 Properties..................................................................................................20
2.2.4.1 Property Names.....................................................................................20
2.2.4.2 Property Values.....................................................................................21
2.3 Standard Properties...........................................................................................23
2.3.1 compatible.................................................................................................23
2.3.2 model.........................................................................................................23
2.3.3 phandle......................................................................................................24
2.3.4 status.........................................................................................................25
2.3.5 #address-cells and #size-cells...................................................................26
2.3.6 reg.............................................................................................................27
2.3.7 virtual-reg..................................................................................................27
2.3.8 ranges........................................................................................................28
2.3.9 dma-ranges................................................................................................30
2.3.10 name..........................................................................................................31
2.3.11 device_type...............................................................................................31
2.4 Interrupts and Interrupt Mapping......................................................................32
2.4.1 Properties for Interrupt Generating Devices.............................................34
2.4.1.1 interrupts...............................................................................................34
2.4.1.2 interrupt-parent.....................................................................................34
2.4.2 Properties for Interrupt Controllers...........................................................35
2.4.2.1 #interrupt-cells......................................................................................35
2.4.2.2 interrupt-controller................................................................................35
2.4.3 Interrupt Nexus Properties........................................................................35
2.4.3.1 interrupt-map.........................................................................................35
