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authorStefan Roese <sr@denx.de>2012-03-16 10:19:31 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-03-27 01:01:07 +0100
commiteea628199d5b12429c47db17035a954b0062e554 (patch)
treeea2ddcd6df17d3c459f7d40477d06ddbc96abc7d /Documentation
parent30053b87d5b97aca28dd7a59982cbb161eaf01c6 (diff)
downloadop-kernel-dev-eea628199d5b12429c47db17035a954b0062e554.zip
op-kernel-dev-eea628199d5b12429c47db17035a954b0062e554.tar.gz
mtd: Add device-tree support to fsmc_nand
This patch adds support to configure the FSMC NAND driver (used amongst others on SPEAr platforms) via device-tree instead of platform_data. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/mtd/fsmc-nand.txt33
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mtd/fsmc-nand.txt b/Documentation/devicetree/bindings/mtd/fsmc-nand.txt
new file mode 100644
index 0000000..e2c663b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/fsmc-nand.txt
@@ -0,0 +1,33 @@
+* FSMC NAND
+
+Required properties:
+- compatible : "st,spear600-fsmc-nand"
+- reg : Address range of the mtd chip
+- reg-names: Should contain the reg names "fsmc_regs" and "nand_data"
+- st,ale-off : Chip specific offset to ALE
+- st,cle-off : Chip specific offset to CLE
+
+Optional properties:
+- bank-width : Width (in bytes) of the device. If not present, the width
+ defaults to 1 byte
+- nand-skip-bbtscan: Indicates the the BBT scanning should be skipped
+
+Example:
+
+ fsmc: flash@d1800000 {
+ compatible = "st,spear600-fsmc-nand";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0xd1800000 0x1000 /* FSMC Register */
+ 0xd2000000 0x4000>; /* NAND Base */
+ reg-names = "fsmc_regs", "nand_data";
+ st,ale-off = <0x20000>;
+ st,cle-off = <0x10000>;
+
+ bank-width = <1>;
+ nand-skip-bbtscan;
+
+ partition@0 {
+ ...
+ };
+ };
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