summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/mtd
diff options
context:
space:
mode:
Diffstat (limited to 'dts/Bindings/mtd')
-rw-r--r--dts/Bindings/mtd/fsl-quadspi.txt24
-rw-r--r--dts/Bindings/mtd/marvell-nand.txt5
-rw-r--r--dts/Bindings/mtd/mtd-physmap.txt7
-rw-r--r--dts/Bindings/mtd/pxa3xx-nand.txt50
-rw-r--r--dts/Bindings/mtd/sunxi-nand.txt4
5 files changed, 37 insertions, 53 deletions
diff --git a/dts/Bindings/mtd/fsl-quadspi.txt b/dts/Bindings/mtd/fsl-quadspi.txt
index 63d4d62..483e9cf 100644
--- a/dts/Bindings/mtd/fsl-quadspi.txt
+++ b/dts/Bindings/mtd/fsl-quadspi.txt
@@ -39,3 +39,27 @@ qspi0: quadspi@40044000 {
....
};
};
+
+Example showing the usage of two SPI NOR devices:
+
+&qspi2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_qspi2>;
+ status = "okay";
+
+ flash0: n25q256a@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "micron,n25q256a", "jedec,spi-nor";
+ spi-max-frequency = <29000000>;
+ reg = <0>;
+ };
+
+ flash1: n25q256a@1 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "micron,n25q256a", "jedec,spi-nor";
+ spi-max-frequency = <29000000>;
+ reg = <1>;
+ };
+};
diff --git a/dts/Bindings/mtd/marvell-nand.txt b/dts/Bindings/mtd/marvell-nand.txt
index c08fb47..e0c7907 100644
--- a/dts/Bindings/mtd/marvell-nand.txt
+++ b/dts/Bindings/mtd/marvell-nand.txt
@@ -14,7 +14,10 @@ Required properties:
- #address-cells: shall be set to 1. Encode the NAND CS.
- #size-cells: shall be set to 0.
- interrupts: shall define the NAND controller interrupt.
-- clocks: shall reference the NAND controller clock.
+- clocks: shall reference the NAND controller clocks, the second one is
+ is only needed for the Armada 7K/8K SoCs
+- clock-names: mandatory if there is a second clock, in this case there
+ should be one clock named "core" and another one named "reg"
- marvell,system-controller: Set to retrieve the syscon node that handles
NAND controller related registers (only required with the
"marvell,armada-8k-nand[-controller]" compatibles).
diff --git a/dts/Bindings/mtd/mtd-physmap.txt b/dts/Bindings/mtd/mtd-physmap.txt
index 4a0a48b..232fa12 100644
--- a/dts/Bindings/mtd/mtd-physmap.txt
+++ b/dts/Bindings/mtd/mtd-physmap.txt
@@ -41,6 +41,13 @@ additional (optional) property is defined:
- erase-size : The chip's physical erase block size in bytes.
+ The device tree may optionally contain endianness property.
+ little-endian or big-endian : It Represents the endianness that should be used
+ by the controller to properly read/write data
+ from/to the flash. If this property is missing,
+ the endianness is chosen by the system
+ (potentially based on extra configuration options).
+
The device tree may optionally contain sub-nodes describing partitions of the
address space. See partition.txt for more detail.
diff --git a/dts/Bindings/mtd/pxa3xx-nand.txt b/dts/Bindings/mtd/pxa3xx-nand.txt
deleted file mode 100644
index d4ee4da..0000000
--- a/dts/Bindings/mtd/pxa3xx-nand.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-PXA3xx NAND DT bindings
-
-Required properties:
-
- - compatible: Should be set to one of the following:
- marvell,pxa3xx-nand
- marvell,armada370-nand
- marvell,armada-8k-nand
- - reg: The register base for the controller
- - interrupts: The interrupt to map
- - #address-cells: Set to <1> if the node includes partitions
- - marvell,system-controller: Set to retrieve the syscon node that handles
- NAND controller related registers (only required
- with marvell,armada-8k-nand compatible).
-
-Optional properties:
-
- - dmas: dma data channel, see dma.txt binding doc
- - marvell,nand-enable-arbiter: Set to enable the bus arbiter
- - marvell,nand-keep-config: Set to keep the NAND controller config as set
- by the bootloader
- - num-cs: Number of chipselect lines to use
- - nand-on-flash-bbt: boolean to enable on flash bbt option if
- not present false
- - nand-ecc-strength: number of bits to correct per ECC step
- - nand-ecc-step-size: number of data bytes covered by a single ECC step
-
-The following ECC strength and step size are currently supported:
-
- - nand-ecc-strength = <1>, nand-ecc-step-size = <512>
- - nand-ecc-strength = <4>, nand-ecc-step-size = <512>
- - nand-ecc-strength = <8>, nand-ecc-step-size = <512>
-
-Example:
-
- nand0: nand@43100000 {
- compatible = "marvell,pxa3xx-nand";
- reg = <0x43100000 90>;
- interrupts = <45>;
- dmas = <&pdma 97 0>;
- dma-names = "data";
- #address-cells = <1>;
-
- marvell,nand-enable-arbiter;
- marvell,nand-keep-config;
- num-cs = <1>;
-
- /* partitions (optional) */
- };
-
diff --git a/dts/Bindings/mtd/sunxi-nand.txt b/dts/Bindings/mtd/sunxi-nand.txt
index 5e13a5c..0734f03 100644
--- a/dts/Bindings/mtd/sunxi-nand.txt
+++ b/dts/Bindings/mtd/sunxi-nand.txt
@@ -24,8 +24,8 @@ Optional properties:
- allwinner,rb : shall contain the native Ready/Busy ids.
or
- rb-gpios : shall contain the gpios used as R/B pins.
-- nand-ecc-mode : one of the supported ECC modes ("hw", "hw_syndrome", "soft",
- "soft_bch" or "none")
+- nand-ecc-mode : one of the supported ECC modes ("hw", "soft", "soft_bch" or
+ "none")
see Documentation/devicetree/bindings/mtd/nand.txt for generic bindings.