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authorBrian Norris <computersforpeace@gmail.com>2017-02-10 10:05:51 -0800
committerBrian Norris <computersforpeace@gmail.com>2017-02-10 10:05:51 -0800
commit398d8739bb900562f40e22aebdfc9970803d04b7 (patch)
tree16fa45c9e5edf22cb76682112123aa2af0c9713a /Documentation/devicetree/bindings/mtd
parent4f04f68e1598087a8110e8946bfb321eebe115c9 (diff)
parent7fa2c7038cc0ec16ae5d8eee347ea136de0f4b65 (diff)
Merge tag 'spi-nor/for-4.11-v2' of git://github.com/spi-nor/linux
From Cyrille: """ This pull request contains the following notable changes: - add support to the 4-byte address instruction set. - add support to new memory parts. - add support to S3AN memories. - add support to the Intel SPI controller. - add support to the Aspeed AST2400 and AST2550 controllers. - fix max SPI transfer and message sizes in m25p80_read(). - fix the Candence QSPI driver. - fix the Freescale QSPI driver. """
Diffstat (limited to 'Documentation/devicetree/bindings/mtd')
-rw-r--r--Documentation/devicetree/bindings/mtd/aspeed-smc.txt51
-rw-r--r--Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt2
-rw-r--r--Documentation/devicetree/bindings/mtd/mtk-quadspi.txt8
3 files changed, 60 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/mtd/aspeed-smc.txt b/Documentation/devicetree/bindings/mtd/aspeed-smc.txt
new file mode 100644
index 000000000000..49f6528ef547
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/aspeed-smc.txt
@@ -0,0 +1,51 @@
+* Aspeed Firmware Memory controller
+* Aspeed SPI Flash Memory Controller
+
+The Firmware Memory Controller in the Aspeed AST2500 SoC supports
+three chip selects, two of which are always of SPI type and the third
+can be SPI or NOR type flash. These bindings only describe SPI.
+
+The two SPI flash memory controllers in the AST2500 each support two
+chip selects.
+
+Required properties:
+ - compatible : Should be one of
+ "aspeed,ast2400-fmc" for the AST2400 Firmware Memory Controller
+ "aspeed,ast2400-spi" for the AST2400 SPI Flash memory Controller
+ "aspeed,ast2500-fmc" for the AST2500 Firmware Memory Controller
+ "aspeed,ast2500-spi" for the AST2500 SPI flash memory controllers
+
+ - reg : the first contains the control register location and length,
+ the second contains the memory window mapping address and length
+ - #address-cells : must be 1 corresponding to chip select child binding
+ - #size-cells : must be 0 corresponding to chip select child binding
+
+Optional properties:
+ - interrupts : Should contain the interrupt for the dma device if an
+ FMC
+
+The child nodes are the SPI flash modules which must have a compatible
+property as specified in bindings/mtd/jedec,spi-nor.txt
+
+Optionally, the child node can contain properties for SPI mode (may be
+ignored):
+ - spi-max-frequency - max frequency of spi bus
+
+
+Example:
+fmc: fmc@1e620000 {
+ compatible = "aspeed,ast2500-fmc";
+ reg = < 0x1e620000 0x94
+ 0x20000000 0x02000000 >;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <19>;
+ flash@0 {
+ reg = < 0 >;
+ compatible = "jedec,spi-nor";
+ /* spi-max-frequency = <>; */
+ /* m25p,fast-read; */
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt
index 2c91c03e7eb0..3e920ec5c4d3 100644
--- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt
+++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt
@@ -14,6 +14,8 @@ Required properties:
at25df641
at26df081a
mr25h256
+ mr25h10
+ mr25h40
mx25l4005a
mx25l1606e
mx25l6405d
diff --git a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt
index fb314f09861b..5ded66ad7aef 100644
--- a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt
+++ b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt
@@ -1,7 +1,13 @@
* Serial NOR flash controller for MTK MT81xx (and similar)
Required properties:
-- compatible: should be "mediatek,mt8173-nor";
+- compatible: The possible values are:
+ "mediatek,mt2701-nor"
+ "mediatek,mt7623-nor"
+ "mediatek,mt8173-nor"
+ For mt8173, compatible should be "mediatek,mt8173-nor".
+ For every other SoC, should contain both the SoC-specific compatible string
+ and "mediatek,mt8173-nor".
- reg: physical base address and length of the controller's register
- clocks: the phandle of the clocks needed by the nor controller
- clock-names: the names of the clocks