On 07/15/2013 05:34:58 AM, hongbo.zh...@freescale.com wrote:
From: Hongbo Zhang <hongbo.zh...@freescale.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.zh...@freescale.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"
The new device tree nodes have only one compatible in the list, not
three. And if you were to both fsl,eloplus-dma and fsl,elo3-dma on the
same node, fsl,elo3-dma should come first.
- 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@21300 {
#address-cells = <1>;
#size-cells = <1>;
- compatible = "fsl,mpc8540-dma", "fsl,eloplus-dma";
+ compatible = "fsl,mpc8540-dma", "fsl,eloplus-dma",
"fsl,elo3-dma";
In addition to the above issue about ordering, mpc8540 does not have
elo3.
-Scott
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