boards: nucleo_g0b1 add timers, move spi2, nucleo_g474, add timers

nucleo_g0b1re:
removes spi2 from arduino header pins to ST morpho pins in order to
free pins for other peripherals.
Adds tim15 with pwm on pb14, changes tim3 pwm to pb4.
As a result timers are available on arduino pins D5 and D6.

nucleo g474re:
Adds timer 3 with pwm  pin on pb4 and changes tim2 pwm pin
from pa5 to pb10.
As a result timers are available on arduino pins D5 and D6.

Use default prescaler (==1) for 32-bit timer and
10.001 for 16-bit timers as these are commonly used.

Signed-off-by: Thomas Stranger <[email protected]>

Author: str4t0m

boards/arm/nucleo_g0b1re/nucleo_g0b1re.dts

@@ -90,7 +90,16 @@
 	pwm3: pwm {
 		status = "okay";
 		st,prescaler = <10000>;
-		pinctrl-0 = <&tim3_ch1_pa6>;
+		pinctrl-0 = <&tim3_ch1_pb4>;
+	};
+};
+
+&timers15 {
+	status = "okay";
+	pwm15: pwm {
+		status = "okay";
+		st,prescaler = <10000>;
+		pinctrl-0 = <&tim15_ch1_pb14>;
 	};
 };
 
@@ -113,8 +122,8 @@
 };
 
 &spi2 {
-	pinctrl-0 = <&spi2_nss_pb12 &spi2_sck_pb13
-		     &spi2_miso_pb14 &spi2_mosi_pb15>;
+	pinctrl-0 = <&spi2_nss_pd0 &spi2_sck_pd1
+		     &spi2_miso_pd3 &spi2_mosi_pd4>;
 	status = "okay";
 };
 

boards/arm/nucleo_g474re/nucleo_g474re.dts

@@ -116,7 +116,16 @@
 
 	pwm2: pwm {
 		status = "okay";
-		pinctrl-0 = <&tim2_ch1_pa5>;
+		pinctrl-0 = <&tim2_ch3_pb10>;
+	};
+};
+
+&timers3 {
+	status = "okay";
+	pwm3: pwm {
+		status = "okay";
+		st,prescaler = <10000>;
+		pinctrl-0 = <&tim3_ch1_pb4>;
 	};
 };