aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree
diff options
context:
space:
mode:
authorAlexandre Belloni <alexandre.belloni@bootlin.com>2018-07-31 16:38:53 +0200
committerMark Brown <broonie@kernel.org>2018-07-31 15:41:14 +0100
commitf09757ab401ff332030f8e3a41cec6a44e6d9461 (patch)
tree4795cd87d9a1585d105fc641b80ed1e1d507e39e /Documentation/devicetree
parentspi: img-spfi: Set device select bits for SPFI port state (diff)
downloadlinux-dev-f09757ab401ff332030f8e3a41cec6a44e6d9461.tar.xz
linux-dev-f09757ab401ff332030f8e3a41cec6a44e6d9461.zip
spi: dw: document Microsemi integration
The integration of the Designware SPI controller on Microsemi SoCs requires an extra register set to be able to give the IP control of the SPI interface. Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt6
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt
index 204b311e0400..642d3fb1ef85 100644
--- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt
+++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt
@@ -1,8 +1,10 @@
Synopsys DesignWare AMBA 2.0 Synchronous Serial Interface.
Required properties:
-- compatible : "snps,dw-apb-ssi"
-- reg : The register base for the controller.
+- compatible : "snps,dw-apb-ssi" or "mscc,<soc>-spi", where soc is "ocelot" or
+ "jaguar2"
+- reg : The register base for the controller. For "mscc,<soc>-spi", a second
+ register set is required (named ICPU_CFG:SPI_MST)
- interrupts : One interrupt, used by the controller.
- #address-cells : <1>, as required by generic SPI binding.
- #size-cells : <0>, also as required by generic SPI binding.