1Freescale Localbus UPM programmed to work with NAND flash
2
3Required properties:
4- compatible : "fsl,upm-nand".
5- reg : should specify localbus chip select and size used for the chip.
6- fsl,upm-addr-offset : UPM pattern offset for the address latch.
7- fsl,upm-cmd-offset : UPM pattern offset for the command latch.
8
9Optional properties:
10- fsl,upm-addr-line-cs-offsets : address offsets for multi-chip support.
11	The corresponding address lines are used to select the chip.
12- gpios : may specify optional GPIOs connected to the Ready-Not-Busy pins
13	(R/B#). For multi-chip devices, "n" GPIO definitions are required
14	according to the number of chips.
15
16Deprecated properties:
17- fsl,upm-wait-flags : add chip-dependent short delays after running the
18	UPM pattern (0x1), after writing a data byte (0x2) or after
19	writing out a buffer (0x4).
20- chip-delay : chip dependent delay for transferring data from array to
21	read registers (tR). Required if property "gpios" is not used
22	(R/B# pins not connected).
23
24Each flash chip described may optionally contain additional sub-nodes
25describing partitions of the address space. See partition.txt for more
26detail.
27
28Examples:
29
30upm@1,0 {
31	compatible = "fsl,upm-nand";
32	reg = <1 0 1>;
33	fsl,upm-addr-offset = <16>;
34	fsl,upm-cmd-offset = <8>;
35	gpios = <&qe_pio_e 18 0>;
36
37	flash {
38		#address-cells = <1>;
39		#size-cells = <1>;
40		compatible = "...";
41
42		partition@0 {
43			...
44		};
45	};
46};
47
48upm@3,0 {
49	#address-cells = <0>;
50	#size-cells = <0>;
51	compatible = "tqc,tqm8548-upm-nand", "fsl,upm-nand";
52	reg = <3 0x0 0x800>;
53	fsl,upm-addr-offset = <0x10>;
54	fsl,upm-cmd-offset = <0x08>;
55	/* Multi-chip NAND device */
56	fsl,upm-addr-line-cs-offsets = <0x0 0x200>;
57
58	nand@0 {
59		#address-cells = <1>;
60		#size-cells = <1>;
61
62		partition@0 {
63			    label = "fs";
64			    reg = <0x00000000 0x10000000>;
65		};
66	};
67};
68