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| author | Chao Fu <B44548@freescale.com> | 2014-09-28 02:22:10 (GMT) |
|---|---|---|
| committer | Matthew Weigel <Matthew.Weigel@freescale.com> | 2014-12-11 18:37:29 (GMT) |
| commit | 586682455f9d6fe7854baf499b4b9c436716863c (patch) | |
| tree | 800049a74171abe5a2fa4bd71cbd4fbb232a0d65 /Documentation | |
| parent | b77452e4557346fe6a2b715f8033a4f2549b7a72 (diff) | |
| download | linux-fsl-qoriq-586682455f9d6fe7854baf499b4b9c436716863c.tar.xz | |
Documentation: mtd: add a new document for SPI NOR flash
We need a DT property to store the dummy cycles for DDR Quad read.
This is a common feature for the SPI NOR flash, such as Spansion and Micron
chips.
Add this file to describe this specific SPI NOR flash features which will
be referred by the SPI NOR flash drivers.
Signed-off-by: Huang Shijie <b32955@freescale.com>
This patch was under discussion at: https://patchwork.kernel.org/patch/4074941/
Change-Id: Id5eac26d6ee941a0976721a704881bc7012716ad
Reviewed-on: http://git.am.freescale.net:8181/20126
Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>
Tested-by: Zhengxiong Jin <Jason.Jin@freescale.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/mtd/spi-nor-flash.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mtd/spi-nor-flash.txt b/Documentation/devicetree/bindings/mtd/spi-nor-flash.txt new file mode 100644 index 0000000..aba4d54 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/spi-nor-flash.txt @@ -0,0 +1,7 @@ +This file defines some DT properties for specific SPI NOR flash features. +The SPI NOR controller drivers may refer to this file, such as fsl-quadspi.txt + +Optional properties: + - spi-nor,ddr-quad-read-dummy: The dummy cycles used by the DDR Quad read. + Please refer to the chip's datasheet. This + property can be 4 or 6 which is less then 8. |