Adjust the documentation of the new SPI memory interface based
driver to reflect the new drivers settings.
Signed-off-by: Frieder Schrempf <frieder.schrempf@xxxxxxxxx>
---
Changes in v2:
==============
* Split the moving and editing of the dt-bindings in two patches
.../devicetree/bindings/spi/spi-fsl-qspi.txt | 22 ++++++++++----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-qspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-qspi.txt
index 483e9cf..8b4eed7 100644
--- a/Documentation/devicetree/bindings/spi/spi-fsl-qspi.txt
+++ b/Documentation/devicetree/bindings/spi/spi-fsl-qspi.txt
@@ -3,9 +3,8 @@
Required properties:
- compatible : Should be "fsl,vf610-qspi", "fsl,imx6sx-qspi",
"fsl,imx7d-qspi", "fsl,imx6ul-qspi",
- "fsl,ls1021a-qspi"
+ "fsl,ls1021a-qspi", "fsl,ls2080a-qspi"
or
- "fsl,ls2080a-qspi" followed by "fsl,ls1021a-qspi",
"fsl,ls1043a-qspi" followed by "fsl,ls1021a-qspi"
- reg : the first contains the register location and length,
the second contains the memory mapping address and length
@@ -15,14 +14,15 @@ Required properties:
- clock-names : Should contain the name of the clocks: "qspi_en" and "qspi".
Optional properties:
- - fsl,qspi-has-second-chip: The controller has two buses, bus A and bus B.
- Each bus can be connected with two NOR flashes.
- Most of the time, each bus only has one NOR flash
- connected, this is the default case.
- But if there are two NOR flashes connected to the
- bus, you should enable this property.
- (Please check the board's schematic.)
- - big-endian : That means the IP register is big endian
+ - big-endian : That means the IP registers format is big endian
+
+Required SPI slave node properties:
+ - reg: There are two buses (A and B) with two chip selects each.
+ This encodes to which bus and CS the flash is connected:
+ <0>: Bus A, CS 0
+ <1>: Bus A, CS 1
+ <2>: Bus B, CS 0
+ <3>: Bus B, CS 1
Example:
@@ -40,7 +40,7 @@ qspi0: quadspi@40044000 {
};
};
-Example showing the usage of two SPI NOR devices:
+Example showing the usage of two SPI NOR devices on bus A:
&qspi2 {
pinctrl-names = "default";
--
2.7.4
--
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