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authorRoger Quadros <rogerq@ti.com>2014-08-15 16:09:19 +0300
committerTony Lindgren <tony@atomide.com>2014-11-24 07:55:34 -0800
commitb41502e0a59f027775085982af1159446f612f95 (patch)
treee0b7727c4db1c56fc8258d95fc70f17ef29e324c /arch/arm
parent9ec49b9f2b43a09f6263c955b84419467a1d64e0 (diff)
ARM: dts: dra7-evm: Add CAN support
The board has 2 CAN ports but only the first one can be used. Enable the first CAN port. WAKEUP0 pin doesn't have INPUT enable bit so we just disable weak PULLs. The second CAN port cannot be used without hardware modification so we don't enable the second port. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/boot/dts/dra7-evm.dts22
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 0d8a3bd0f00d..736092b1a535 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -251,6 +251,21 @@
>;
};
+ dcan1_pins_default: dcan1_pins_default {
+ pinctrl-single,pins = <
+ 0x3d0 (PIN_OUTPUT | MUX_MODE0) /* dcan1_tx */
+ 0x3d4 (MUX_MODE15) /* dcan1_rx.off */
+ 0x418 (PULL_DIS | MUX_MODE1) /* wakeup0.dcan1_rx */
+ >;
+ };
+
+ dcan1_pins_sleep: dcan1_pins_sleep {
+ pinctrl-single,pins = <
+ 0x3d0 (MUX_MODE15) /* dcan1_tx.off */
+ 0x3d4 (MUX_MODE15) /* dcan1_rx.off */
+ 0x418 (MUX_MODE15) /* wakeup0.off */
+ >;
+ };
};
&i2c1 {
@@ -639,3 +654,10 @@
pinctrl-0 = <&davinci_mdio_default>;
pinctrl-1 = <&davinci_mdio_sleep>;
};
+
+&dcan1 {
+ status = "ok";
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&dcan1_pins_default>;
+ pinctrl-1 = <&dcan1_pins_sleep>;
+};