device-tree-bindings/mtd/mtd-physmap.txt

1 CFI or JEDEC memory-mapped NOR flash, MTD-RAM (NVRAM...)
6  - compatible : should contain the specific model of mtd chip(s)
7    used, if known, followed by either "cfi-flash", "jedec-flash",
8    "mtd-ram" or "mtd-rom".
9  - reg : Address range(s) of the mtd chip(s)
11    non-identical chips can be described in one node.
12  - bank-width : Width (in bytes) of the bank.  Equal to the
13    device width times the number of interleaved chips.
14  - device-width : (optional) Width of a single mtd chip.  If
15    omitted, assumed to be equal to 'bank-width'.
16  - #address-cells, #size-cells : Must be present if the device has
17    sub-nodes representing partitions (see below).  In this case
18    both #address-cells and #size-cells must be equal to 1.
19  - no-unaligned-direct-access: boolean to disable the default direct
24    By defining "no-unaligned-direct-access", the flash will not be
26  - linux,mtd-name: allow to specify the mtd name for retro capability with
27    physmap-flash drivers as boot loader pass the mtd partition via the old
28    device name physmap-flash.
29  - use-advanced-sector-protection: boolean to enable support for the
30    advanced sector protection (Spansion: PPB - Persistent Protection
36  - vendor-id : Contains the flash chip's vendor id (1 byte).
37  - device-id : Contains the flash chip's device id (1 byte).
39 For ROM compatible devices (and ROM fallback from cfi-flash), the following
42  - erase-size : The chip's physical erase block size in bytes.
44 The device tree may optionally contain sub-nodes describing partitions of the
50 		compatible = "amd,am29lv128ml", "cfi-flash";
52 		bank-width = <4>;
53 		device-width = <1>;
54 		#address-cells = <1>;
55 		#size-cells = <1>;
63 			read-only;
70 		#address-cells = <1>;
71 		#size-cells = <1>;
72 		compatible = "intel,pc48f4400p0vb", "cfi-flash";
75 		bank-width = <2>;
77 			label = "test-part1";
85 		compatible = "samsung,k6f1616u6a", "mtd-ram";
87 		bank-width = <2>;