lkml.org 
[lkml]   [2007]   [Jun]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/5] Add the explanation and sample of RapidIO DTS sector to the document of booting-without-of.txt file.
Date
Add the explanation and a sample of RapidIO DTS sector to the document of booting-without-of.txt file.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
---
Documentation/powerpc/booting-without-of.txt | 41 ++++++++++++++++++++++++++
1 files changed, 41 insertions(+), 0 deletions(-)

diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index b49ce16..359c899 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -1729,6 +1729,47 @@ platforms are moved over to use the flattened-device-tree model.

More devices will be defined as this spec matures.

+ k) RapidIO
+
+ Required properties:
+
+ - device_type : Should be "rapidio"
+ - compatible : Should be "fsl,rapidio-v0.0" or "fsl,rapidio-v1.0"
+ and so on. The version number is got from IP Block Revision
+ Register of RapidIO controller.
+ - #address-cells : Address representation for "rapidio" devices.
+ This field represents the number of cells needed to represent
+ the RapidIO address of the registers. For supporting more than
+ 36-bits RapidIO address, this field should be <2>.
+ See 1) above for more details on defining #address-cells.
+ - reg : Offset and length of the register set for the device
+ - ranges : Should be defined as specified in 1) to describe the
+ translation of addresses for memory mapped RapidIO memory
+ space.
+ - interrupt-parent : the phandle for the interrupt controller that
+ services interrupts for this device.
+ - interrupts : <a b> where a is the interrupt number and b is a
+ field that represents an encoding of the sense and level
+ information for the interrupt. This should be encoded based on
+ the information in section 2) depending on the type of interrupt
+ controller you have. For this sector, interrupts order should be
+ <err_irq bell_outb_irq bell_inb_irq msg1_tx_irq msg1_rx_irq
+ msg2_tx_irq msg2_rx_irq ... msgN_tx_irq msgN_rx_irq>.
+
+ Example:
+
+ srio@c0000{
+ device_type = "rapidio";
+ compatible = "fsl,rapidio-v1.0";
+ #address-cells = <2>;
+ reg = <c0000 20000>;
+ ranges = <0 0 c0000000 20000000>;
+ interrupt-parent = <&mpic>;
+ /* err_irq bell_outb_irq bell_inb_irq msg1_tx_irq msg1_rx_irq
+ msg2_tx_irq msg2_rx_irq */
+ interrupts = <30 2 31 2 32 2 35 2 36 2 37 2 38 2>;
+ };
+
VII - Specifying interrupt information for devices
===================================================

--
1.5.1
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-06-12 10:57    [W:0.341 / U:0.764 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site