@@ -6,6 +6,27 @@
*/
/dts-v1/;
+
+/* Enable SCIF2 (SER0) on PMOD1 (CN7) */
+#define PMOD1_SER0 1
+
+/*
+ * To enable MTU3a PWM on PMOD0,
+ * Disable PMOD1_SER0 by setting "#define PMOD1_SER0 0" above and
+ * enable PMOD_MTU3 by setting "#define PMOD_MTU3 1" below.
+ */
+#define PMOD_MTU3 0
+
+#if (PMOD_MTU3 && PMOD1_SER0)
+#error "Cannot set as PMOD_MTU3 and PMOD1_SER0 are mutually exclusive "
+#endif
+
+#define MTU3_COUNTER_Z_PHASE_SIGNAL 0
+
+#if (!PMOD_MTU3 && MTU3_COUNTER_Z_PHASE_SIGNAL)
+#error "Cannot set 1 to MTU3_COUNTER_Z_PHASE_SIGNAL as PMOD_MTU3=0"
+#endif
+
#include "r9a07g044l2.dtsi"
#include "rzg2l-smarc-som.dtsi"
#include "rzg2l-smarc-pinfunction.dtsi"
@@ -6,6 +6,26 @@
*/
/dts-v1/;
+
+/* Enable SCIF2 (SER0) on PMOD1 (CN7) */
+#define PMOD1_SER0 1
+
+/*
+ * To enable MTU3a PWM on PMOD0,
+ * Disable PMOD1_SER0 by setting "#define PMOD1_SER0 0" above and
+ * enable PMOD_MTU3 by setting "#define PMOD_MTU3 1" below.
+ */
+#define PMOD_MTU3 0
+
+#if (PMOD_MTU3 && PMOD1_SER0)
+#error "Cannot set as PMOD_MTU3 and PMOD1_SER0 are mutually exclusive "
+#endif
+
+#define MTU3_COUNTER_Z_PHASE_SIGNAL 0
+#if (!PMOD_MTU3 && MTU3_COUNTER_Z_PHASE_SIGNAL)
+#error "Cannot set 1 to MTU3_COUNTER_Z_PHASE_SIGNAL as PMOD_MTU3=0"
+#endif
+
#include "r9a07g054l2.dtsi"
#include "rzg2l-smarc-som.dtsi"
#include "rzg2l-smarc-pinfunction.dtsi"
@@ -53,6 +53,26 @@ i2c3_pins: i2c3 {
<RZG2L_PORT_PINMUX(18, 1, 3)>; /* SCL */
};
+ mtu3_pins: mtu3 {
+ mtu3-ext-clk-input-pin {
+ pinmux = <RZG2L_PORT_PINMUX(48, 0, 4)>, /* MTCLKA */
+ <RZG2L_PORT_PINMUX(48, 1, 4)>; /* MTCLKB */
+ };
+
+ mtu3-pwm {
+ pinmux = <RZG2L_PORT_PINMUX(44, 0, 4)>, /* MTIOC3A */
+ <RZG2L_PORT_PINMUX(44, 1, 4)>, /* MTIOC3B */
+ <RZG2L_PORT_PINMUX(44, 2, 4)>, /* MTIOC3C */
+ <RZG2L_PORT_PINMUX(44, 3, 4)>; /* MTIOC3D */
+ };
+
+#if MTU3_COUNTER_Z_PHASE_SIGNAL
+ mtu3-zphase-clk {
+ pinmux = <RZG2L_PORT_PINMUX(19, 0, 3)>; /* MTIOC1A */
+ };
+#endif /* MTU3_COUNTER_Z_PHASE_SIGNAL */
+ };
+
scif0_pins: scif0 {
pinmux = <RZG2L_PORT_PINMUX(38, 0, 1)>, /* TxD */
<RZG2L_PORT_PINMUX(38, 1, 1)>; /* RxD */
@@ -8,9 +8,6 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
-/* comment the #define statement to disable SCIF2 (SER0) on PMOD1 (CN7) */
-#define PMOD1_SER0 1
-
/ {
aliases {
serial1 = &scif2;
@@ -36,6 +33,26 @@ wm8978: codec@1a {
};
};
+#if PMOD_MTU3
+&mtu3 {
+ pinctrl-0 = <&mtu3_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
+#if MTU3_COUNTER_Z_PHASE_SIGNAL
+/* SDHI cd pin is muxed with counter Z phase signal */
+&sdhi1 {
+ status = "disabled";
+};
+#endif /* MTU3_COUNTER_Z_PHASE_SIGNAL */
+
+&spi1 {
+ status = "disabled";
+};
+#endif /* PMOD_MTU3 */
+
/*
* To enable SCIF2 (SER0) on PMOD1 (CN7)
* SW1 should be at position 2->3 so that SER0_CTS# line is activated
commit 10ca61c6c0fff0985348cc07be0bb037c0bbf15a upstream. Add support for PMOD_MTU3 macro to enable MTU3 node on RZ/{G2,V2}L SMARC EVK. The MTU3a PWM pins are muxed with spi1 pins and counter external input phase clock pins are muxed with scif2 pins. Disable these IPs when PMOD_MTU3 macro is enabled. Apart from this, the counter Z phase clock signal is muxed with the SDHI1 cd signal. So disable SDHI1 IP, when the counter Z phase signal is enabled. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230706153047.368993-1-biju.das.jz@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> --- .../boot/dts/renesas/r9a07g044l2-smarc.dts | 21 +++++++++++++++++ .../boot/dts/renesas/r9a07g054l2-smarc.dts | 20 ++++++++++++++++ .../dts/renesas/rzg2l-smarc-pinfunction.dtsi | 20 ++++++++++++++++ arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi | 23 ++++++++++++++++--- 4 files changed, 81 insertions(+), 3 deletions(-)