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boards: arm: frdm_k64f: enable FlexTimer 0 as PWM

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Enable FlexTimer 0 (FTM0) as PWM and setup PTC1 as FTM0 channel 0 for
use in PWM loopback test.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2020-12-21 10:32:45 +01:00 • committed by Carles Cufí
commit 54fed42f23
2 changed files with 13 additions and 1 deletions
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6
boards/arm/frdm_k64f/frdm_k64f.dts
View file

@ -134,6 +134,12 @@ arduino_spi: &spi0 {
status = "okay";
};
&ftm0 {
status = "okay";
compatible = "nxp,kinetis-ftm-pwm";
#pwm-cells = <3>;
};
&ftm3 {
status = "okay";
compatible = "nxp,kinetis-ftm-pwm";

8
boards/arm/frdm_k64f/pinmux.c
View file

@ -122,7 +122,13 @@ static int frdm_k64f_pinmux_init(const struct device *dev)
pinmux_pin_set(portb, 10, PORT_PCR_MUX(kPORT_PinDisabledOrAnalog));
#endif
#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm3), nxp_kinetis_ftm_pwm, okay) && CONFIG_PWM
#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm0), nxp_kinetis_ftm_pwm, okay) \
&& CONFIG_PWM
pinmux_pin_set(portc, 1, PORT_PCR_MUX(kPORT_MuxAlt4));
#endif
#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm3), nxp_kinetis_ftm_pwm, okay) \
&& CONFIG_PWM
pinmux_pin_set(portc, 8, PORT_PCR_MUX(kPORT_MuxAlt3));
pinmux_pin_set(portc, 9, PORT_PCR_MUX(kPORT_MuxAlt3));
#endif