[PATCH 2/3] [POWERPC] Add docs for Freescale RapidIO device tree node
Kumar Gala
galak at kernel.crashing.org
Wed Nov 21 16:13:58 EST 2007
---
Documentation/powerpc/booting-without-of.txt | 47 ++++++++++++++++++++++++--
1 files changed, 44 insertions(+), 3 deletions(-)
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index eb14dd5..3d959d6 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -2521,9 +2521,9 @@ platforms are moved over to use the flattened-device-tree model.
Required properties:
- compatible : compatible list, contains 2 entries, first is
- "fsl,sata-CHIP", where CHIP is the processor
+ "fsl,CHIP-sata", where CHIP is the processor
(mpc8315, mpc8379, etc.) and the second is
- "fsl,sata-pq2pro"
+ "fsl,pq2pro-sata"
- interrupts : <interrupt mapping for SATA IRQ>
- interrupt-parent : optional, if needed for interrupt mapping
- reg : <registers mapping>
@@ -2531,12 +2531,53 @@ platforms are moved over to use the flattened-device-tree model.
Example:
sata at 19000 {
- compatible = "fsl,mpc8315-sata", "fsl,sata-pq2pro;
+ compatible = "fsl,mpc8315-sata", "fsl,pq2pro-sata;
reg = <19000 1000>;
interrupts = <2d 8>;
interrupt-parent = < &ipic >;
};
+ * Frescale Serial RapidIO bus controller
+
+ 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 : compatible list, contains 2 entries, first is
+ "fsl,CHIP-rapidio", where CHIP is the processor
+ (mpc8572, mpc8641, etc.) and the second is
+ "fsl,delta-rapidio"
+ - interrupts : interrupts are expected in the following
+ order:
+ * Error/port write
+ * Outbound Doorbell
+ * Inbound Doorbell
+ * Outbound Msg Unit 1
+ * Inbound Msg Unit 1
+ * Outbound Msg Unit 2
+ * Inbound Msg Unit 2
+ - interrupt-parent : optional, if needed for interrupt mapping
+ - reg : <registers mapping>
+ - #address-cells : Should always be 2
+ - #size--cells : Should always be 2
+ - ranges : Details processor physical addr to RapidIO address
+
+ Example:
+
+ rapidio at c0000 {
+ compatible = "fsl,mpc8641-rapidio", "fsl,delta-rapidio;
+ #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
--
1.5.3.4
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