diff options
author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2012-01-25 13:11:06 -0500 |
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committer | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2012-03-15 11:29:12 -0400 |
commit | d6a016616ba834b7da7653effb98d413acde7aa2 (patch) | |
tree | 444b749ce7c53737677bfff84f036ce3f685060a /Documentation/devicetree/bindings | |
parent | 770d7c39af940da24dd4c2c048576d778ac0abd4 (diff) |
atmel/nand: add DT support
Use a local copy of board informatin and fill with DT data.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'Documentation/devicetree/bindings')
-rw-r--r-- | Documentation/devicetree/bindings/mtd/atmel-nand.txt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mtd/atmel-nand.txt b/Documentation/devicetree/bindings/mtd/atmel-nand.txt new file mode 100644 index 000000000000..5903ecf6e895 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/atmel-nand.txt | |||
@@ -0,0 +1,41 @@ | |||
1 | Atmel NAND flash | ||
2 | |||
3 | Required properties: | ||
4 | - compatible : "atmel,at91rm9200-nand". | ||
5 | - reg : should specify localbus address and size used for the chip, | ||
6 | and if availlable the ECC. | ||
7 | - atmel,nand-addr-offset : offset for the address latch. | ||
8 | - atmel,nand-cmd-offset : offset for the command latch. | ||
9 | - #address-cells, #size-cells : Must be present if the device has sub-nodes | ||
10 | representing partitions. | ||
11 | |||
12 | - gpios : specifies the gpio pins to control the NAND device. detect is an | ||
13 | optional gpio and may be set to 0 if not present. | ||
14 | |||
15 | Optional properties: | ||
16 | - nand-ecc-mode : String, operation mode of the NAND ecc mode, soft by default. | ||
17 | Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first", | ||
18 | "soft_bch". | ||
19 | - nand-bus-width : 8 or 16 bus width if not present 8 | ||
20 | - nand-on-flash-bbt: boolean to enable on flash bbt option if not present false | ||
21 | |||
22 | Examples: | ||
23 | nand0: nand@40000000,0 { | ||
24 | compatible = "atmel,at91rm9200-nand"; | ||
25 | #address-cells = <1>; | ||
26 | #size-cells = <1>; | ||
27 | reg = <0x40000000 0x10000000 | ||
28 | 0xffffe800 0x200 | ||
29 | >; | ||
30 | atmel,nand-addr-offset = <21>; | ||
31 | atmel,nand-cmd-offset = <22>; | ||
32 | nand-on-flash-bbt; | ||
33 | nand-ecc-mode = "soft"; | ||
34 | gpios = <&pioC 13 0 | ||
35 | &pioC 14 0 | ||
36 | 0 | ||
37 | >; | ||
38 | partition@0 { | ||
39 | ... | ||
40 | }; | ||
41 | }; | ||