On Jul 26, 2007, at 3:42 AM, Zhang Wei wrote:
Add the explanation and a sample of RapidIO OF node to the document
of booting-without-of.txt file.
Signed-off-by: Zhang Wei <[email protected]>
---
Documentation/powerpc/booting-without-of.txt | 37 +++++++++++++++
+++++++++++
1 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/Documentation/powerpc/booting-without-of.txt b/
Documentation/powerpc/booting-without-of.txt
index 76733a3..d89b805 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -1824,6 +1824,43 @@ platforms are moved over to use the
flattened-device-tree model.
fsl,has-rstcr;
};
+ l) RapidIO
+
+ RapidIO is a definition of a system interconnect. This node add
+ the support for RapidIO processor in kernel. The node name is
+ suggested to be 'rapidio'.
+
+ Required properties:
+
+ - compatible : Using "fsl,rapidio-delta" for Freescale PowerPC
+ 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.
Can you explain this a little further. I'm a bit confused by
'RapidIO address of the registers'.
+ 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.
+ - interrupts : binding interrupts for this device node,
+ please follow below orders:
+ <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:
+
+ rapidio@c0000 {
+ compatible = "fsl,rapidio-delta";
+ #address-cells = <2>;
+ #size-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>;
+ };
+
More devices will be defined as this spec matures.
VII - Specifying interrupt information for devices
--
1.5.1
-
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