a0fabf722c
Allow a NAND chip using the orion_nand driver to be described using devicetree. Changes since last submission (V4) [Addressing comments by]:- * WARN when bank-width is out of range [Andrew Lunn] Changes since last submission (V3):- * Document all parameters [Grant Likely] * Convert bank-width to be in bytes * Add explicit defaults for cle, ale and bank-width Signed-off-by: Jamie Lentin <jm@lentin.co.uk> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
50 lines
1.1 KiB
Text
50 lines
1.1 KiB
Text
NAND support for Marvell Orion SoC platforms
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Required properties:
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- compatible : "mrvl,orion-nand".
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- reg : Base physical address of the NAND and length of memory mapped
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region
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Optional properties:
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- cle : Address line number connected to CLE. Default is 0
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- ale : Address line number connected to ALE. Default is 1
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- bank-width : Width in bytes of the device. Default is 1
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- chip-delay : Chip dependent delay for transferring data from array to read
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registers in usecs
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The device tree may optionally contain sub-nodes describing partitions of the
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address space. See partition.txt for more detail.
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Example:
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nand@f4000000 {
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#address-cells = <1>;
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#size-cells = <1>;
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cle = <0>;
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ale = <1>;
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bank-width = <1>;
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chip-delay = <25>;
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compatible = "mrvl,orion-nand";
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reg = <0xf4000000 0x400>;
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partition@0 {
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label = "u-boot";
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reg = <0x0000000 0x100000>;
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read-only;
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};
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partition@100000 {
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label = "uImage";
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reg = <0x0100000 0x200000>;
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};
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partition@300000 {
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label = "dtb";
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reg = <0x0300000 0x100000>;
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};
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partition@400000 {
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label = "root";
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reg = <0x0400000 0x7d00000>;
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};
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};
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