Hello Kevin,
On 06/01/2013 12:45 AM, Kevin Hilman wrote:
Ensure the console uart (UART3) on these boards is mux'd correctly, and
IO ring wakeup is enabled.
This is needed for serial console wakeups when using DT boot.
Signed-off-by: Kevin Hilman <[email protected]>
---
arch/arm/boot/dts/omap3-beagle-xm.dts | 14 ++++++++++++++
arch/arm/boot/dts/omap3-beagle.dts | 12 ++++++++++++
arch/arm/boot/dts/omap3-overo.dtsi | 14 ++++++++++++++
3 files changed, 40 insertions(+)
diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts
b/arch/arm/boot/dts/omap3-beagle-xm.dts
index 3046d1f..ca067b0 100644
--- a/arch/arm/boot/dts/omap3-beagle-xm.dts
+++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
@@ -126,3 +126,17 @@
mode = <3>;
power = <50>;
};
+
+&omap3_pmx_core {
+ uart3_pins: pinmux_uart3_pins {
+ pinctrl-single,pins = <
+ 0x16e 0x4100 /* uart3_rx_irrx.uart3_rx_irrx WAKEUP |
INPUT | MODE0 */
+ 0x170 0x0 /* uart3_tx_irtx.uart3_tx_irtx OUTPUT |
MODE0 */
If you go through Benoit's tree, could you use the newly introduced
constants [1]? They are defined
in include/dt-bindings/pinctrl/omap.h. The above will look:
0x16e (PIN_INPUT | WAKEUP_EVENT | MUX_MODE0) /*
uart3_rx_irrx.uart3_rx_irrx */
0x170 (PIN_OUTPUT | MUX_MODE0) /*
uart3_tx_irtx.uart3_tx_irtx */
+ >;
+ };
+};
+
+&uart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins>;
+};
diff --git a/arch/arm/boot/dts/omap3-beagle.dts
b/arch/arm/boot/dts/omap3-beagle.dts
index 6eec699..b004372 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -95,6 +95,13 @@
0x1ae 0x10b /*
USBB2_ULPITLL_CLK_MUXMODE.usbb1_ulpiphy_dat7 INPUT | PULLDOWN */
>;
};
+
+ uart3_pins: pinmux_uart3_pins {
+ pinctrl-single,pins = <
+ 0x16e 0x4100 /* uart3_rx_irrx.uart3_rx_irrx WAKEUP |
INPUT | MODE0 */
+ 0x170 0x0 /* uart3_tx_irtx.uart3_tx_irtx OUTPUT |
MODE0 */
Same here
+ >;
+ };
};
&i2c1 {
@@ -142,3 +149,8 @@
*/
ti,pulldowns = <0x03a1c4>;
};
+
+&uart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins>;
+};
diff --git a/arch/arm/boot/dts/omap3-overo.dtsi
b/arch/arm/boot/dts/omap3-overo.dtsi
index a626c50..d63ed39 100644
--- a/arch/arm/boot/dts/omap3-overo.dtsi
+++ b/arch/arm/boot/dts/omap3-overo.dtsi
@@ -77,3 +77,17 @@
mode = <3>;
power = <50>;
};
+
+&omap3_pmx_core {
+ uart3_pins: pinmux_uart3_pins {
+ pinctrl-single,pins = <
+ 0x16e 0x4100 /* uart3_rx_irrx.uart3_rx_irrx WAKEUP |
INPUT | MODE0 */
+ 0x170 0x0 /* uart3_tx_irtx.uart3_tx_irtx OUTPUT |
MODE0 */
Same here
+ >;
+ };
+};
+
+&uart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins>;
+};
Regards,
Florian
[1] http://thread.gmane.org/gmane.linux.drivers.devicetree/36951
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