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Diffstat (limited to 'Documentation/devicetree/bindings/mtd/arm-versatile.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/mtd/arm-versatile.txt | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/mtd/arm-versatile.txt b/Documentation/devicetree/bindings/mtd/arm-versatile.txt index beace4b89..4ec28796a 100644 --- a/Documentation/devicetree/bindings/mtd/arm-versatile.txt +++ b/Documentation/devicetree/bindings/mtd/arm-versatile.txt @@ -1,8 +1,26 @@ Flash device on ARM Versatile board +These flash chips are found in the ARM reference designs like Integrator, +Versatile, RealView, Versatile Express etc. + +They are regular CFI compatible (Intel or AMD extended) flash chips with +some special write protect/VPP bits that can be controlled by the machine's +system controller. + Required properties: -- compatible : must be "arm,versatile-flash"; +- compatible : must be "arm,versatile-flash", "cfi-flash"; +- reg : memory address for the flash chip - bank-width : width in bytes of flash interface. +For the rest of the properties, see mtd-physmap.txt. + The device tree may optionally contain sub-nodes describing partitions of the address space. See partition.txt for more detail. + +Example: + +flash@34000000 { + compatible = "arm,versatile-flash", "cfi-flash"; + reg = <0x34000000 0x4000000>; + bank-width = <4>; +}; |