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Message-ID: <1373884499-24079-2-git-send-email-hongbo.zhang@freescale.com>
Date: Mon, 15 Jul 2013 18:34:58 +0800
From: <hongbo.zhang@...escale.com>
To: <vinod.koul@...el.com>, <djbw@...com>, <leoli@...escale.com>,
<scottwood@...escale.com>, <linuxppc-dev@...ts.ozlabs.org>
CC: <devicetree-discuss@...ts.ozlabs.org>,
<linux-kernel@...r.kernel.org>, <vakul@...escale.com>,
Hongbo Zhang <hongbo.zhang@...escale.com>
Subject: [PATCH v3 1/2] DMA: Freescale: Add new 8-channel DMA engine device tree nodes
From: Hongbo Zhang <hongbo.zhang@...escale.com>
Freescale QorIQ T4 and B4 introduce new 8-channel DMA engines, this patch add
the device tree nodes for them.
Signed-off-by: Hongbo Zhang <hongbo.zhang@...escale.com>
---
.../devicetree/bindings/powerpc/fsl/dma.txt | 8 +-
arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi | 90 ++++++++++++++++++++
arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi | 90 ++++++++++++++++++++
arch/powerpc/boot/dts/fsl/t4240si-post.dtsi | 4 +-
4 files changed, 187 insertions(+), 5 deletions(-)
create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
index 2a4b4bc..8ee5732 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
@@ -76,10 +76,10 @@ Freescale PowerPC 85xx/86xx have on chip general purpose DMA controllers.
Required properties:
-- compatible : compatible list, contains 2 entries, first is
+- compatible : compatible list, contains 3 entries, first is
"fsl,CHIP-dma", where CHIP is the processor
(mpc8540, mpc8540, etc.) and the second is
- "fsl,eloplus-dma"
+ "fsl,eloplus-dma", the third is "fsl,elo3-dma"
- reg : <registers mapping for DMA general status reg>
- cell-index : controller index. 0 for controller @ 0x21000,
1 for controller @ 0xc000
@@ -100,7 +100,7 @@ Example:
dma@...00 {
#address-cells = <1>;
#size-cells = <1>;
- compatible = "fsl,mpc8540-dma", "fsl,eloplus-dma";
+ compatible = "fsl,mpc8540-dma", "fsl,eloplus-dma", "fsl,elo3-dma";
reg = <0x21300 4>;
ranges = <0 0x21100 0x200>;
cell-index = <0>;
@@ -142,3 +142,5 @@ channel that should be used for another driver should not use
"fsl,elo-dma-channel" or "fsl,eloplus-dma-channel". For the SSI drivers, for
example, the compatible property should be "fsl,ssi-dma-channel". See ssi.txt
for more information.
+And the "fsl,eloplus-dma" and "fsl,elo3-dma" contain identical DMA channels,
+the only difference is channel numbers, 4 for the former and 8 for the later.
diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
new file mode 100644
index 0000000..50cd911
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
@@ -0,0 +1,90 @@
+/*
+ * QorIQ DMA device tree stub [ controller @ offset 0x100000 ]
+ *
+ * Copyright 2011-2013 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+dma0: dma@...300 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,elo3-dma";
+ reg = <0x100300 0x4 0x100600 0x4>;
+ ranges = <0x0 0x100100 0x500>;
+ cell-index = <0>;
+ dma-channel@0 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x0 0x80>;
+ cell-index = <0>;
+ interrupts = <28 2 0 0>;
+ };
+ dma-channel@80 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x80 0x80>;
+ cell-index = <1>;
+ interrupts = <29 2 0 0>;
+ };
+ dma-channel@100 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x100 0x80>;
+ cell-index = <2>;
+ interrupts = <30 2 0 0>;
+ };
+ dma-channel@180 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x180 0x80>;
+ cell-index = <3>;
+ interrupts = <31 2 0 0>;
+ };
+ dma-channel@300 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x300 0x80>;
+ cell-index = <4>;
+ interrupts = <76 2 0 0>;
+ };
+ dma-channel@380 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x380 0x80>;
+ cell-index = <5>;
+ interrupts = <77 2 0 0>;
+ };
+ dma-channel@400 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x400 0x80>;
+ cell-index = <6>;
+ interrupts = <78 2 0 0>;
+ };
+ dma-channel@480 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x480 0x80>;
+ cell-index = <7>;
+ interrupts = <79 2 0 0>;
+ };
+};
diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
new file mode 100644
index 0000000..c1aec68
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
@@ -0,0 +1,90 @@
+/*
+ * QorIQ DMA device tree stub [ controller @ offset 0x101000 ]
+ *
+ * Copyright 2011-2013 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+dma1: dma@...300 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,elo3-dma";
+ reg = <0x101300 0x4 0x101600 0x4>;
+ ranges = <0x0 0x101100 0x500>;
+ cell-index = <1>;
+ dma-channel@0 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x0 0x80>;
+ cell-index = <0>;
+ interrupts = <32 2 0 0>;
+ };
+ dma-channel@80 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x80 0x80>;
+ cell-index = <1>;
+ interrupts = <33 2 0 0>;
+ };
+ dma-channel@100 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x100 0x80>;
+ cell-index = <2>;
+ interrupts = <34 2 0 0>;
+ };
+ dma-channel@180 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x180 0x80>;
+ cell-index = <3>;
+ interrupts = <35 2 0 0>;
+ };
+ dma-channel@300 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x300 0x80>;
+ cell-index = <4>;
+ interrupts = <80 2 0 0>;
+ };
+ dma-channel@380 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x380 0x80>;
+ cell-index = <5>;
+ interrupts = <81 2 0 0>;
+ };
+ dma-channel@400 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x400 0x80>;
+ cell-index = <6>;
+ interrupts = <82 2 0 0>;
+ };
+ dma-channel@480 {
+ compatible = "fsl,eloplus-dma-channel";
+ reg = <0x480 0x80>;
+ cell-index = <7>;
+ interrupts = <83 2 0 0>;
+ };
+};
diff --git a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
index bd611a9..ec95c60 100644
--- a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
@@ -387,8 +387,8 @@
reg = <0xea000 0x4000>;
};
-/include/ "qoriq-dma-0.dtsi"
-/include/ "qoriq-dma-1.dtsi"
+/include/ "elo3-dma-0.dtsi"
+/include/ "elo3-dma-1.dtsi"
/include/ "qoriq-espi-0.dtsi"
spi@...000 {
--
1.7.9.5
--
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