From: Wolfgang Grandegger <wg@grandegger.com>
To: Netdev@vger.kernel.org
Cc: Socketcan-core@lists.berlios.de,
Devicetree-discuss@lists.ozlabs.org,
Linuxppc-dev@lists.ozlabs.org, Wolfgang Grandegger <wg@denx.de>
Subject: [PATCH net-next v4 3/3] powerpc/mpc5xxx: add OF platform binding doc for FSL MSCAN devices
Date: Thu, 7 Jan 2010 20:43:08 +0100 [thread overview]
Message-ID: <1262893388-16218-4-git-send-email-wg@grandegger.com> (raw)
In-Reply-To: <1262893388-16218-3-git-send-email-wg@grandegger.com>
From: Wolfgang Grandegger <wg@denx.de>
This patch adds documentation for the MSCAN OF device bindings for
the MPC512x and moves the one for the MPC5200 to the new common file
"Documentation/powerpc/dts-bindings/fsl/can.txt".
Signed-off-by: Wolfgang Grandegger <wg@denx.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
---
Documentation/powerpc/dts-bindings/fsl/can.txt | 53 ++++++++++++++++++++
Documentation/powerpc/dts-bindings/fsl/mpc5200.txt | 9 +---
2 files changed, 54 insertions(+), 8 deletions(-)
create mode 100644 Documentation/powerpc/dts-bindings/fsl/can.txt
diff --git a/Documentation/powerpc/dts-bindings/fsl/can.txt b/Documentation/powerpc/dts-bindings/fsl/can.txt
new file mode 100644
index 0000000..2fa4fcd
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/fsl/can.txt
@@ -0,0 +1,53 @@
+CAN Device Tree Bindings
+------------------------
+
+(c) 2006-2009 Secret Lab Technologies Ltd
+Grant Likely <grant.likely@secretlab.ca>
+
+fsl,mpc5200-mscan nodes
+-----------------------
+In addition to the required compatible-, reg- and interrupt-properties, you can
+also specify which clock source shall be used for the controller:
+
+- fsl,mscan-clock-source : a string describing the clock source. Valid values
+ are: "ip" for ip bus clock
+ "ref" for reference clock (XTAL)
+ "ref" is default in case this property is not
+ present.
+
+fsl,mpc5121-mscan nodes
+-----------------------
+In addition to the required compatible-, reg- and interrupt-properties, you can
+also specify which clock source and divider shall be used for the controller:
+
+- fsl,mscan-clock-source : a string describing the clock source. Valid values
+ are: "ip" for ip bus clock
+ "ref" for reference clock
+ "sys" for system clock
+ If this property is not present, an optimal CAN
+ clock source and frequency based on the system
+ clock will be selected. If this is not possible,
+ the reference clock will be used.
+
+- fsl,mscan-clock-divider: for the reference and system clock, an additional
+ clock divider can be specified. By default, a
+ value of 1 is used.
+
+Note that the MPC5121 Rev. 1 processor is not supported.
+
+Examples:
+ can@1300 {
+ compatible = "fsl,mpc5121-mscan";
+ interrupts = <12 0x8>;
+ interrupt-parent = <&ipic>;
+ reg = <0x1300 0x80>;
+ };
+
+ can@1380 {
+ compatible = "fsl,mpc5121-mscan";
+ interrupts = <13 0x8>;
+ interrupt-parent = <&ipic>;
+ reg = <0x1380 0x80>;
+ fsl,mscan-clock-source = "ref";
+ fsl,mscan-clock-divider = <3>;
+ };
diff --git a/Documentation/powerpc/dts-bindings/fsl/mpc5200.txt b/Documentation/powerpc/dts-bindings/fsl/mpc5200.txt
index 5c6602d..4ccb2cd 100644
--- a/Documentation/powerpc/dts-bindings/fsl/mpc5200.txt
+++ b/Documentation/powerpc/dts-bindings/fsl/mpc5200.txt
@@ -195,11 +195,4 @@ External interrupts:
fsl,mpc5200-mscan nodes
-----------------------
-In addition to the required compatible-, reg- and interrupt-properites, you can
-also specify which clock source shall be used for the controller:
-
-- fsl,mscan-clock-source- a string describing the clock source. Valid values
- are: "ip" for ip bus clock
- "ref" for reference clock (XTAL)
- "ref" is default in case this property is not
- present.
+See file can.txt in this directory.
--
1.6.2.5
next prev parent reply other threads:[~2010-01-07 19:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-07 19:43 [PATCH net-next v4 0/3] can: mscan-mpc5xxx: add support for the Freescale MPC512x Wolfgang Grandegger
2010-01-07 19:43 ` [PATCH net-next v4 1/3] can: mscan: fix improper return if dlc < 8 in start_xmit function Wolfgang Grandegger
2010-01-07 19:43 ` [PATCH net-next v4 2/3] can: mscan-mpc5xxx: add support for the MPC512x processor Wolfgang Grandegger
2010-01-07 19:43 ` Wolfgang Grandegger [this message]
2010-01-08 8:41 ` [PATCH net-next v4 0/3] can: mscan-mpc5xxx: add support for the Freescale MPC512x David Miller
2010-01-08 8:58 ` Wolfgang Grandegger
2010-01-08 9:02 ` David Miller
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