[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <6be192528afbcc604653a318994ee30fa05a0e05.1447091626.git.dhdang@apm.com>
Date: Mon, 9 Nov 2015 10:05:44 -0800
From: Duc Dang <dhdang@....com>
To: Jassi Brar <jassisinghbrar@...il.com>,
Paul Bolle <pebolle@...cali.nl>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, patches@....com,
Duc Dang <dhdang@....com>, Feng Kan <fkan@....com>
Subject: [PATCH v3 2/3] Documentation: mailbox: Add APM X-Gene SLIMpro mailbox dts documentation
This adds the APM X-Gene SLIMpro mailbox device tree
node documentation.
[dhdang: rebase over 4.3-rc5]
Signed-off-by: Feng Kan <fkan@....com>
Signed-off-by: Duc Dang <dhdang@....com>
---
.../bindings/mailbox/xgene-slimpro-mailbox.txt | 34 ++++++++++++++++++++++
1 file changed, 34 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt
diff --git a/Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt b/Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt
new file mode 100644
index 0000000..d02a3d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt
@@ -0,0 +1,34 @@
+The APM X-Gene SLIMpro mailbox is used to communicate messages between
+the ARM64 processors and the Cortex M3 (dubbed SLIMpro). It uses a simple
+interrupt based door bell mechanism and can exchange simple messages using the
+internal registers.
+
+There are total of 7 interrupts in this mailbox. Each used for an individual
+door bell (or mailbox channel).
+
+Required properties:
+- compatible: Should be as "apm, xgene-slimpro-mbox".
+
+- reg: Contain the mailbox register address range.
+
+- interrupts: 7 interrupts must start from 0 to 6, interrupt 0 define the
+ the interrupt for mailbox channel 0 and interrupt 1 for
+ mailbox channel 1 and so likewise for the reminder.
+
+- #mbox-cells: only one to specify the mailbox channel number.
+
+Example:
+
+Mailbox Node:
+ slimpro-mbox: slimpro-mbox@...40000 {
+ compatible = "apm,xgene-slimpro-mbox";
+ reg = <0x0 0x10540000 0x0 0xa000>;
+ #mbox-cells = <1>;
+ interrupts = <0x0 0x0 0x4>,
+ <0x0 0x1 0x4>,
+ <0x0 0x2 0x4>,
+ <0x0 0x3 0x4>,
+ <0x0 0x4 0x4>,
+ <0x0 0x5 0x4>,
+ <0x0 0x6 0x4>,
+ };
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists