[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <1466595738-2229-2-git-send-email-kraxel@redhat.com>
Date: Wed, 22 Jun 2016 13:42:14 +0200
From: Gerd Hoffmann <kraxel@...hat.com>
To: linux-rpi-kernel@...ts.infradead.org
Cc: linux-arm-kernel@...ts.infradead.org, linux-mmc@...r.kernel.org,
Eric Anholt <eric@...olt.net>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Stephen Warren <swarren@...dotorg.org>,
Lee Jones <lee@...nel.org>,
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 1/5] dt-bindings: Add binding for brcm,bcm2835-sdhost.
From: Eric Anholt <eric@...olt.net>
This is the other SD controller on the platform, which can be swapped
to the role of SD card host using pin muxing.
Signed-off-by: Eric Anholt <eric@...olt.net>
---
.../devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt | 3 +++
.../bindings/mmc/brcm,bcm2835-sdhost.txt | 24 ++++++++++++++++++++++
2 files changed, 27 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt
diff --git a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt
index 59476fb..3cc74e2 100644
--- a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt
+++ b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt
@@ -15,4 +15,7 @@ sdhci: sdhci {
interrupts = <2 30>;
clocks = <&clk_mmc>;
bus-width = <4>;
+ dmas = <&dma 13>,
+ <&dma 13>;
+ dma-names = "tx", "rx";
};
diff --git a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt
new file mode 100644
index 0000000..074992c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt
@@ -0,0 +1,24 @@
+Broadcom BCM2835 SDHOST controller
+
+This file documents differences between the core properties described
+by mmc.txt and the properties that represent the BCM2835 controller.
+
+Required properties:
+- compatible: Should be "brcm,bcm2835-sdhci".
+- clocks: The clock feeding the SDHOST controller.
+
+Optional properties:
+- dmas: DMA channels for read and write.
+ See Documentation/devicetree/bindings/dma/dma.txt for details
+
+Example:
+
+sdhost: sdhost@...02000 {
+ compatible = "brcm,bcm2835-sdhost";
+ reg = <0x7e202000 0x100>;
+ interrupts = <2 24>;
+ clocks = <&clocks BCM2835_CLOCK_VPU>;
+ dmas = <&dma 13>,
+ <&dma 13>;
+ dma-names = "tx", "rx";
+};
--
1.8.3.1
Powered by blists - more mailing lists