This patch adds Freescale DMA and DMA channel definition to
Documentation/powerpc/booting-without-of.txt file.
Signed-off-by: Zhang Wei <[EMAIL PROTECTED]>
Signed-off-by: Ebony Zhu <[EMAIL PROTECTED]>
---
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:
+ [EMAIL PROTECTED] {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,dma";
+ reg = <21300 4>;
+ ranges = <0 21100 200>;
+ [EMAIL PROTECTED] {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,mpc8540-dma-channel";
+ reg = <0 80>;
+ interrupt-parent = <&mpic>;
+ interrupts = <14 2>;
+ };
+ [EMAIL PROTECTED] {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,mpc8540-dma-channel";
+ reg = <80 80>;
+ interrupt-parent = <&mpic>;
+ interrupts = <15 2>;
+ };
+ [EMAIL PROTECTED] {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,mpc8540-dma-channel";
+ reg = <100 80>;
+ interrupt-parent = <&mpic>;
+ interrupts = <16 2>;
+ };
+ [EMAIL PROTECTED] {
+ #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
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
