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From: Zhang Wei <wei.zhang@freescale.com>
To: paulus@samba.org
Cc: linuxppc-dev@ozlabs.org
Subject: [PATCH 1/2 v2] Add Freescale DMA and DMA channel to Documentation/powerpc/booting-without-of.txt file.
Date: Tue, 30 Oct 2007 17:23:48 +0800	[thread overview]
Message-ID: <11937362292747-git-send-email-wei.zhang@freescale.com> (raw)

This patch adds Freescale DMA and DMA channel definition to
Documentation/powerpc/booting-without-of.txt file.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Ebony Zhu <ebony.zhu@freescale.com>
---
 Documentation/powerpc/booting-without-of.txt |   59 ++++++++++++++++++++++++++
 1 files changed, 59 insertions(+), 0 deletions(-)

diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index a96e853..bc3f250 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -52,6 +52,8 @@ Table of Contents
       i) Freescale QUICC Engine module (QE)
       j) CFI or JEDEC memory-mapped NOR flash
       k) Global Utilities Block
+      l) Freescale DMA
+      m) Freescale DMA channel
 
   VII - Specifying interrupt information for devices
     1) interrupts property
@@ -2242,6 +2244,63 @@ platforms are moved over to use the flattened-device-tree model.
 			   available.
 			   For Axon: 0x0000012a
 
+   l) Freescale DMA
+
+   The DMA for dma-engine driver of Freescale MPC8540 silicon DMA
+   controller which also fit for MPC8560, MPC8555,
+   MPC8548, MPC8641 and MPC8349 silicon DMA controller,
+
+   For each DMA node, you should define channels included.
+   Please see below 'm) Freescale DMA channel' for DMA channel's definition.
+
+   Required properties:
+
+    - compatible : Should be "fsl,mpc8540-dma" or "fsl,mpc8349-dma"
+    - reg : Offset and length of DMA general status register.
+    - ranges : Should be defined as specified in 1) to describe the
+               DMA controller channels.
+
+  Example:
+	dma@21000 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "fsl,mpc8540-dma";
+		reg = <21300 4>;
+		ranges = <0 21100 200>;
+		dma-channel@0 {
+			compatible = "fsl,mpc8540-dma-channel";
+			reg = <0 80>;
+			interrupt-parent = <&mpic>;
+			interrupts = <14 2>;
+		};
+		dma-channel@80 {
+			compatible = "fsl,mpc8540-dma-channel";
+			reg = <80 80>;
+			interrupt-parent = <&mpic>;
+			interrupts = <15 2>;
+		};
+		dma-channel@100 {
+			compatible = "fsl,mpc8540-dma-channel";
+			reg = <100 80>;
+			interrupt-parent = <&mpic>;
+			interrupts = <16 2>;
+		};
+		dma-channel@180 {
+			compatible = "fsl,mpc8540-dma-channel";
+			reg = <180 80>;
+			interrupt-parent = <&mpic>;
+			interrupts = <17 2>;
+		};
+	};
+
+   m) Freescale DMA channel
+
+   Required properties:
+
+    - compatible : Should be "fsl,mpc8540-dma-channel"
+                   or "fsl,mpc8349-dma-channel"
+    - reg : Offset and length of the register set for the DMA channel.
+
    More devices will be defined as this spec matures.
 
 VII - Specifying interrupt information for devices
-- 
1.5.2

             reply	other threads:[~2007-10-30  9:14 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-30  9:23 Zhang Wei [this message]
2007-10-30  9:23 ` [PATCH 2/2 v2] Add DMA engine and SOC device support to mpc8641hpcn board Zhang Wei

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