[PATCH 2/3] arm64: dts: ti: k3-am62a7-sk: Enable PWM
Judith Mendez
jm at ti.com
Mon Apr 21 17:08:50 PDT 2025
PWM signals can be routed to the user expansion header on am62a7
SK. Enable eCAP0, eCAP1, eHRPWM1, and route the output PWM signals
to pins on J3 header.
Signed-off-by: Judith Mendez <jm at ti.com>
---
arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 40 +++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 1c9d95696c839..a9557ee73b831 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -383,6 +383,25 @@ vddshv_sdio_pins_default: vddshv-sdio-default-pins {
AM62AX_IOPAD(0x07c, PIN_OUTPUT, 7) /* (M19) GPMC0_CLK.GPIO0_31 */
>;
};
+
+ main_ecap0_pins_default: main-ecap0-default-pins {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x01b8, PIN_OUTPUT, 3) /* (C16) SPI0_CS1.ECAP0_IN_APWM_OUT */
+ >;
+ };
+
+ main_ecap2_pins_default: main-ecap2-default-pins {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x01a4, PIN_OUTPUT, 2) /* (A19) MCASP0_ACLKX.ECAP2_IN_APWM_OUT */
+ >;
+ };
+
+ main_epwm1_pins_default: main-epwm1-default-pins {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x019c, PIN_OUTPUT, 6) /* (B18) MCASP0_AXR1.EHRPWM1_A */
+ AM62AX_IOPAD(0x01a0, PIN_OUTPUT, 6) /* (B20) MCASP0_AXR0.EHRPWM1_B */
+ >;
+ };
};
&mcu_pmx0 {
@@ -741,3 +760,24 @@ dpi1_out: endpoint {
};
};
};
+
+&ecap0 {
+ /* P26 of J3 */
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_ecap0_pins_default>;
+ status = "okay";
+};
+
+&ecap2 {
+ /* P11 of J3 */
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_ecap2_pins_default>;
+ status = "okay";
+};
+
+&epwm1 {
+ /* P36/P33 of J3 */
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_epwm1_pins_default>;
+ status = "okay";
+};
--
2.49.0
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