blob: a37c67bcb43b6b8e35ce8215e734bd016e41199a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
Allwinner NAND Flash Controller (NFC)
Required properties:
- compatible : "allwinner,sun4i-a10-nand".
- reg : shall contain registers location and length for data and reg.
- interrupts : shall define the nand controller interrupt.
- #address-cells: shall be set to 1. Encode the nand CS.
- #size-cells : shall be set to 0.
- clocks : shall reference nand controller clocks.
- clock-names : nand controller internal clock names. Shall contain :
* "ahb" : AHB gating clock
* "mod" : nand controller clock
Optional properties:
- dmas : shall reference DMA channel associated to the NAND controller.
- dma-names : shall be "rxtx".
Optional children nodes:
Children nodes represent the available nand chips.
Optional properties:
- reset : phandle + reset specifier pair
- reset-names : must contain "ahb"
- allwinner,rb : shall contain the native Ready/Busy ids.
or
- rb-gpios : shall contain the gpios used as R/B pins.
- nand-ecc-mode : one of the supported ECC modes ("hw", "hw_syndrome", "soft",
"soft_bch" or "none")
see Documentation/devicetree/bindings/mtd/nand.txt for generic bindings.
Examples:
nfc: nand@01c03000 {
compatible = "allwinner,sun4i-a10-nand";
reg = <0x01c03000 0x1000>;
interrupts = <0 37 1>;
clocks = <&ahb_gates 13>, <&nand_clk>;
clock-names = "ahb", "mod";
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
nand@0 {
reg = <0>;
allwinner,rb = <0>;
nand-ecc-mode = "soft_bch";
};
};
|
