From: Alexander Popov <alex.popov@linux.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Anatolij Gustschin <agust@denx.de>, Rob Herring <robh@kernel.org>,
Timur Tabi <timur@tabi.org>,
Grant Likely <grant.likely@linaro.org>,
Dan Williams <dan.j.williams@intel.com>,
Vinod Koul <vinod.koul@intel.com>,
Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Alexander Popov <alex.popov@linux.com>,
linuxppc-dev@lists.ozlabs.org, dmaengine@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 2/2] powerpc/512x: add a device tree binding for LocalPlus Bus FIFO
Date: Mon, 12 Oct 2015 00:08:02 +0300 [thread overview]
Message-ID: <1444597682-22181-3-git-send-email-alex.popov@linux.com> (raw)
In-Reply-To: <1444597682-22181-1-git-send-email-alex.popov@linux.com>
Add a device tree binding for Freescale MPC512x LocalPlus Bus FIFO and
introduce the document describing that binding.
Signed-off-by: Alexander Popov <alex.popov@linux.com>
---
.../bindings/powerpc/fsl/mpc512x_lpbfifo.txt | 21 +++++++++++++++++++++
arch/powerpc/boot/dts/mpc5121.dtsi | 11 +++++++++--
arch/powerpc/boot/dts/mpc5125twr.dts | 11 ++++++++++-
3 files changed, 40 insertions(+), 3 deletions(-)
create mode 100644 Documentation/devicetree/bindings/powerpc/fsl/mpc512x_lpbfifo.txt
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/mpc512x_lpbfifo.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpc512x_lpbfifo.txt
new file mode 100644
index 0000000..b3b392f
--- /dev/null
+++ b/Documentation/devicetree/bindings/powerpc/fsl/mpc512x_lpbfifo.txt
@@ -0,0 +1,21 @@
+Freescale MPC512x LocalPlus Bus FIFO (called SCLPC in the Reference Manual)
+
+Required properties:
+- compatible: should be "fsl,mpc512x-lpbfifo";
+- reg: should contain the offset and length of SCLPC register set;
+- interrupts: should contain the interrupt specifier for SCLPC; syntax of an
+ interrupt client node is described in interrupt-controller/interrupts.txt;
+- dmas: should contain the DMA specifier for SCLPC as described at
+ dma/dma.txt and dma/mpc512x-dma.txt;
+- dma-names: should be "rx-tx";
+
+Example:
+
+ sclpc@10100 {
+ compatible = "fsl,mpc512x-lpbfifo";
+ reg = <0x10100 0x50>;
+ interrupts = <7 0x8>;
+ dmas = <&dma0 26>;
+ dma-names = "rx-tx";
+ };
+
diff --git a/arch/powerpc/boot/dts/mpc5121.dtsi b/arch/powerpc/boot/dts/mpc5121.dtsi
index 7f9d14f..a015e45 100644
--- a/arch/powerpc/boot/dts/mpc5121.dtsi
+++ b/arch/powerpc/boot/dts/mpc5121.dtsi
@@ -77,7 +77,6 @@
#address-cells = <2>;
#size-cells = <1>;
reg = <0x80000020 0x40>;
- interrupts = <7 0x8>;
ranges = <0x0 0x0 0xfc000000 0x04000000>;
};
@@ -329,7 +328,15 @@
/* LocalPlus controller */
lpc@10000 {
compatible = "fsl,mpc5121-lpc";
- reg = <0x10000 0x200>;
+ reg = <0x10000 0x100>;
+ };
+
+ sclpc@10100 {
+ compatible = "fsl,mpc512x-lpbfifo";
+ reg = <0x10100 0x50>;
+ interrupts = <7 0x8>;
+ dmas = <&dma0 26>;
+ dma-names = "rx-tx";
};
pata@10200 {
diff --git a/arch/powerpc/boot/dts/mpc5125twr.dts b/arch/powerpc/boot/dts/mpc5125twr.dts
index e4f2974..898eb58 100644
--- a/arch/powerpc/boot/dts/mpc5125twr.dts
+++ b/arch/powerpc/boot/dts/mpc5125twr.dts
@@ -246,6 +246,14 @@
status = "disabled";
};
+ sclpc@10100 {
+ compatible = "fsl,mpc512x-lpbfifo";
+ reg = <0x10100 0x50>;
+ interrupts = <7 0x8>;
+ dmas = <&dma0 26>;
+ dma-names = "rx-tx";
+ };
+
// 5125 PSCs are not 52xx or 5121 PSC compatible
// PSC1 uart0 aka ttyPSC0
serial@11100 {
@@ -279,10 +287,11 @@
clock-names = "ipg";
};
- dma@14000 {
+ dma0: dma@14000 {
compatible = "fsl,mpc5121-dma"; // BSP name: "mpc512x-dma2"
reg = <0x14000 0x1800>;
interrupts = <65 0x8>;
+ #dma-cells = <1>;
};
};
};
--
1.9.1
next prev parent reply other threads:[~2015-10-11 21:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-11 21:08 [PATCH v4 0/2] powerpc/512x: add LocalPlus Bus FIFO device driver Alexander Popov
2015-10-11 21:08 ` [PATCH v4 1/2] " Alexander Popov
2015-10-22 13:46 ` Anatolij Gustschin
2015-10-11 21:08 ` Alexander Popov [this message]
2015-10-22 13:46 ` [PATCH v4 2/2] powerpc/512x: add a device tree binding for LocalPlus Bus FIFO Anatolij Gustschin
2015-10-21 22:15 ` [PATCH v4 0/2] powerpc/512x: add LocalPlus Bus FIFO device driver Alexander Popov
2015-10-27 2:22 ` Vinod Koul
2015-10-27 20:42 ` Alexander Popov
2015-10-28 6:20 ` Vinod Koul
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