From: Zhang Wei <wei.zhang@freescale•com>
To: paulus@samba•org
Cc: linuxppc-dev@ozlabs•org
Subject: [PATCH 1/5] Add Freescale DMA and DMA channel to Documentation/powerpc/booting-without-of.txt file.
Date: Fri, 7 Sep 2007 18:53:52 +0800 [thread overview]
Message-ID: <1189162437484-git-send-email-wei.zhang@freescale.com> (raw)
In-Reply-To: <11891624353752-git-send-email-wei.zhang@freescale.com>
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 | 67 ++++++++++++++++++++++++++
1 files changed, 67 insertions(+), 0 deletions(-)
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index 76733a3..d114edf 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) Flash chip nodes
k) Global Utilities Block
+ l) Freescale DMA
+ m) Freescale DMA channel
VII - Specifying interrupt information for devices
1) interrupts property
@@ -1824,6 +1826,71 @@ platforms are moved over to use the flattened-device-tree model.
fsl,has-rstcr;
};
+ 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,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,dma";
+ reg = <21300 4>;
+ ranges = <0 21100 200>;
+ dma-channel@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,mpc8540-dma-channel";
+ reg = <0 80>;
+ interrupt-parent = <&mpic>;
+ interrupts = <14 2>;
+ };
+ dma-channel@80 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,mpc8540-dma-channel";
+ reg = <80 80>;
+ interrupt-parent = <&mpic>;
+ interrupts = <15 2>;
+ };
+ dma-channel@100 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,mpc8540-dma-channel";
+ reg = <100 80>;
+ interrupt-parent = <&mpic>;
+ interrupts = <16 2>;
+ };
+ dma-channel@180 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ 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
next prev parent reply other threads:[~2007-09-07 10:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-07 10:53 [PATCH 0/5] DMA engine driver for Freescale MPC85xx processors Zhang Wei
2007-09-07 10:53 ` Zhang Wei [this message]
2007-09-07 10:53 ` [PATCH 2/5] Add Freescale DMA engine driver maintainer Zhang Wei
2007-09-07 10:53 ` [PATCH 3/5] Add DMA of-node to mpc8641hpcn board dts Zhang Wei
2007-09-07 10:53 ` [PATCH 4/5] Add of-device and DMA bus support to MPC8641HPCN board Zhang Wei
2007-09-07 21:10 ` [PATCH 3/5] Add DMA of-node to mpc8641hpcn board dts Scott Wood
2007-09-10 3:27 ` [PATCH 2/5] Add Freescale DMA engine driver maintainer David Gibson
2007-09-11 10:07 ` Zhang Wei-r63237
2007-09-07 14:43 ` [PATCH 1/5] Add Freescale DMA and DMA channel to Documentation/powerpc/booting-without-of.txt file Segher Boessenkool
2007-09-07 15:31 ` Scott Wood
2007-09-07 16:30 ` Segher Boessenkool
2007-09-10 3:25 ` David Gibson
2007-09-11 10:01 ` Zhang Wei-r63237
2007-09-11 14:19 ` Scott Wood
2007-09-12 10:13 ` Zhang Wei-r63237
2007-09-12 15:19 ` Scott Wood
2007-09-13 2:09 ` Segher Boessenkool
2007-09-13 14:52 ` Scott Wood
2007-09-13 15:11 ` Kumar Gala
2007-09-13 18:55 ` Segher Boessenkool
2007-09-13 18:59 ` Scott Wood
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