1 Hisilicon Hip04 Soc NAND controller DT binding 1 Hisilicon Hip04 Soc NAND controller DT binding
2 2
3 Required properties: 3 Required properties:
4 4
5 - compatible: Should be "hisilicon,50 5 - compatible: Should be "hisilicon,504-nfc".
6 - reg: The first contains base 6 - reg: The first contains base physical address and size of
7 NAND controller's regis 7 NAND controller's registers. The second contains base
8 physical address and si 8 physical address and size of NAND controller's buffer.
9 - interrupts: Interrupt number for nf 9 - interrupts: Interrupt number for nfc.
10 - nand-bus-width: See nand-controller.yam 10 - nand-bus-width: See nand-controller.yaml.
11 - nand-ecc-mode: Support none and hw ecc 11 - nand-ecc-mode: Support none and hw ecc mode.
12 - #address-cells: Partition address, shou 12 - #address-cells: Partition address, should be set 1.
13 - #size-cells: Partition size, should 13 - #size-cells: Partition size, should be set 1.
14 14
15 Optional properties: 15 Optional properties:
16 16
17 - nand-ecc-strength: Number of bits to corre 17 - nand-ecc-strength: Number of bits to correct per ECC step.
18 - nand-ecc-step-size: Number of data bytes co 18 - nand-ecc-step-size: Number of data bytes covered by a single ECC step.
19 19
20 The following ECC strength and step size are c 20 The following ECC strength and step size are currently supported:
21 21
22 - nand-ecc-strength = <16>, nand-ecc-step-siz 22 - nand-ecc-strength = <16>, nand-ecc-step-size = <1024>
23 23
24 Flash chip may optionally contain additional s 24 Flash chip may optionally contain additional sub-nodes describing partitions of
25 the address space. See mtd.yaml for more detai 25 the address space. See mtd.yaml for more detail.
26 26
27 Example: 27 Example:
28 28
29 nand: nand@4020000 { 29 nand: nand@4020000 {
30 compatible = "hisilicon,504-nf 30 compatible = "hisilicon,504-nfc";
31 reg = <0x4020000 0x10000>, <0x 31 reg = <0x4020000 0x10000>, <0x5000000 0x1000>;
32 interrupts = <0 379 4>; 32 interrupts = <0 379 4>;
33 nand-bus-width = <8>; 33 nand-bus-width = <8>;
34 nand-ecc-mode = "hw"; 34 nand-ecc-mode = "hw";
35 nand-ecc-strength = <16>; 35 nand-ecc-strength = <16>;
36 nand-ecc-step-size = <1024>; 36 nand-ecc-step-size = <1024>;
37 #address-cells = <1>; 37 #address-cells = <1>;
38 #size-cells = <1>; 38 #size-cells = <1>;
39 39
40 partition@0 { 40 partition@0 {
41 label = "nand_text"; 41 label = "nand_text";
42 reg = <0x00000000 0x00 42 reg = <0x00000000 0x00400000>;
43 }; 43 };
44 44
45 ... 45 ...
46 46
47 }; 47 };
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