上面代码里面:address-cells + size-cells = 2 那么reg里面的描述值就应该是2个倍数。并且每2个为一组。 上面列举的regulator这个节点可能不是很适合这个里面,但是在这里,只是想描述address-cells 、size-cells、reg三者的关系。 例子3 external-bus { #address-cells = <2>#size-cells = <1>; ... etherne...
reg = <1>; }; }; 在cpu 节点中,#address-cells 设置为 1,#size-cells 设置为 0。 表示:子节点的reg值是单一的uint32数值,该值不包括大小字段,为cpu分配的地址是0、1,cpu的size-cell为0,是因为只给每个cpu一个单独的地址 按照惯例:reg 的值和节点名字是相同的,如果一个节点有 reg 属性,那么该节点...
#size-cells:子节点的reg中,每个长度所占的单元格数。 一般值设为0、1或2就够用了。 例如: /{node{#address-cells=<2>;#size-cells=<2>;node1{reg=<0xfdd600000x000000040x00x40x123412340x432143210x10x1>;};};}; 表示node1节点的reg中,0xfdd60000 0x00000004这两格是一个地址,0x0 0x4这两个格...
#address-cells,用来描述子节点"reg"属性的地址表中用来描述首地址的cell的数量, #size-cells,用来描述子节点"reg"属性的地址表中用来描述地址长度的cell的数量。 有了这两个属性,子节点中的"reg"就可以描述一块连续的地址区域。下例中,父节点中指定了"#address-cells = <2>" "#size-cells = <1>",则子...
reg #address-cells #size-cells 1. 2. 3. 其中,reg的组织形式为 reg=<address1length1[address2length2][address3length3]...> 1. 其中的每一组address length表明了设备使用的一个地址范围。 address为1个或多个32位的整型(即cell),而length的意义则意味着从address到address+length–1的地址范围都属于...
#address-cells = <1>; #size-cells = <0>; compatible = "fsl,imx6q-ipu"; reg = <0x02400000 0x400000>; ipu2: ipu@02800000 { #address-cells = <1>; #size-cells = <0>; compatible = "fsl,imx6q-ipu"; reg = <0x02800000 0x400000>; All other addresses are correct. The ones ...
2.1.631 Part 1 Section 18.3.1.55, mergeCells (Merge Cells) 2.1.632 Part 1 Section 18.3.1.56, objectPr (Embedded Object Properties) 2.1.633 Part 1 Section 18.3.1.57, oddFooter (Odd Page Footer) 2.1.634 Part 1 Section 18.3.1.58, oddHeader (Odd Header) 2.1.635 Part...
#address-cells = <1>; #size-cells = <1>; reg = <0x1 0x0 0x00080000>; }; fpga: board-control@2,0 { compatible = "nec,gcd-cp30-fpga"; reg = <0x2 0x0 0x0020000>; }; }; Its mean NAND device is attached with CS0 and NAND_BASE base address is 0x...
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#address-cells = <1>; #size-cells = <0>; switch@0{ switch@1f{ compatible = "mediatek,mt7531"; reg = <31>; #interrupt-cells = <1>; interrupt-controller; interrupt-parent = <&pio>; interrupts = <53 IRQ_TYPE_LEVEL_HIGH>;