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author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/Documentation/devicetree/bindings/mtd/partition.txt | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/mtd/partition.txt')
-rw-r--r-- | kernel/Documentation/devicetree/bindings/mtd/partition.txt | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/mtd/partition.txt b/kernel/Documentation/devicetree/bindings/mtd/partition.txt new file mode 100644 index 000000000..8e5557da1 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/mtd/partition.txt @@ -0,0 +1,71 @@ +Representing flash partitions in devicetree + +Partitions can be represented by sub-nodes of an mtd device. This can be used +on platforms which have strong conventions about which portions of a flash are +used for what purposes, but which don't use an on-flash partition table such +as RedBoot. +NOTE: if the sub-node has a compatible string, then it is not a partition. + +#address-cells & #size-cells must both be present in the mtd device. There are +two valid values for both: +<1>: for partitions that require a single 32-bit cell to represent their + size/address (aka the value is below 4 GiB) +<2>: for partitions that require two 32-bit cells to represent their + size/address (aka the value is 4 GiB or greater). + +Required properties: +- reg : The partition's offset and size within the mtd bank. + +Optional properties: +- label : The label / name for this partition. If omitted, the label is taken + from the node name (excluding the unit address). +- read-only : This parameter, if present, is a hint to Linux that this + partition should only be mounted read-only. This is usually used for flash + partitions containing early-boot firmware images or data which should not be + clobbered. + +Examples: + + +flash@0 { + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "u-boot"; + reg = <0x0000000 0x100000>; + read-only; + }; + + uimage@100000 { + reg = <0x0100000 0x200000>; + }; +}; + +flash@1 { + #address-cells = <1>; + #size-cells = <2>; + + /* a 4 GiB partition */ + partition@0 { + label = "filesystem"; + reg = <0x00000000 0x1 0x00000000>; + }; +}; + +flash@2 { + #address-cells = <2>; + #size-cells = <2>; + + /* an 8 GiB partition */ + partition@0 { + label = "filesystem #1"; + reg = <0x0 0x00000000 0x2 0x00000000>; + }; + + /* a 4 GiB partition */ + partition@200000000 { + label = "filesystem #2"; + reg = <0x2 0x00000000 0x1 0x00000000>; + }; +}; |