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
next 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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