boards: Enable additional modules for STM32 nucleo_u083rc.

This commit enables support for DMA,
SPI, RNG, Crypto, USB and RTC.

Signed-off-by: Mohammad Badawi <zephyr@exalt.ps>
Signed-off-by: Sara Touqan <zephyr@exalt.ps>

boards/st/nucleo_u083rc/doc/index.rst

@@ -49,6 +49,8 @@ They operate at a frequency of up to 56 MHz.
   - 4 µA wake-up from Stop mode
   - 52 µA/MHz Run mode
   - Brownout reset
+  - SPI (3)
+  - DMA Controller (2)
 
 - Core:
 
@@ -98,6 +100,7 @@ They operate at a frequency of up to 56 MHz.
   - Candidate for Arm |reg| PSA level 1 and SESIP level 3 certifications
   - 5 passive anti-tamper pins
   - 96-bit unique ID
+  - True Random Number Generator (RNG) NIST SP800-90B compliant
 
 - Up to 10 timers, 2 watchdogs and RTC:
 
@@ -106,6 +109,8 @@ They operate at a frequency of up to 56 MHz.
     2x watchdogs, SysTick timer
   - RTC with hardware calendar, alarms and calibration
 
+- 3 low-power 16-bit timers (available in Stop mode).
+
 - Up to 20 communication peripherals:
 
   - 1 USB 2.0 full-speed crystal-less solution with LPM and BCD
@@ -145,6 +150,8 @@ The Zephyr nucleo_u083rc board configuration supports the following hardware fea
 | UART      | on-chip    | serial port-polling;                |
 |           |            | serial port-interrupt               |
 +-----------+------------+-------------------------------------+
+| WATCHDOG  | on-chip    | independent watchdog                |
++-----------+------------+-------------------------------------+
 | ADC       | on-chip    | adc                                 |
 +-----------+------------+-------------------------------------+
 | DAC       | on-chip    | DAC Controller                      |
@@ -153,6 +160,20 @@ The Zephyr nucleo_u083rc board configuration supports the following hardware fea
 +-----------+------------+-------------------------------------+
 | PWM       | on-chip    | pwm                                 |
 +-----------+------------+-------------------------------------+
+| RTC       | on-chip    | Real Time Clock                     |
++-----------+------------+-------------------------------------+
+| SPI       | on-chip    | spi                                 |
++-----------+------------+-------------------------------------+
+| USB       | on-chip    | USB full-speed host/device bus      |
++-----------+------------+-------------------------------------+
+| DMA       | on-chip    | Direct Memory Access Controller     |
++-----------+------------+-------------------------------------+
+| RNG       | on-chip    | True Random number generator        |
++-----------+------------+-------------------------------------+
+| AES       | on-chip    | crypto                              |
++-----------+------------+-------------------------------------+
+| LPTIM     | on-chip    | Low Power Timer                     |
++-----------+------------+-------------------------------------+
 
 Other hardware features are not yet supported on this Zephyr port.
 

boards/st/nucleo_u083rc/nucleo_u083rc.dts

@@ -44,6 +44,7 @@
 	aliases {
 		led0 = &green_led_1;
 		sw0 = &user_button;
+		watchdog0 = &iwdg;
 	};
 };
 
@@ -61,10 +62,26 @@
 	status = "okay";
 };
 
+&iwdg {
+	status = "okay";
+};
+
 &clk_hsi {
 	status = "okay";
 };
 
+&clk_hsi48 {
+	status = "okay";
+};
+
+&clk_lse {
+	status = "okay";
+};
+
+&clk_lsi {
+	status = "okay";
+};
+
 &pll {
 	div-m = <1>;
 	mul-n = <6>;
@@ -95,13 +112,6 @@
 	clock-frequency = <I2C_BITRATE_FAST>;
 };
 
-&i2c2 {
-	pinctrl-0 = <&i2c2_scl_pa7 &i2c2_sda_pa6>;
-	pinctrl-names = "default";
-	status = "okay";
-	clock-frequency = <I2C_BITRATE_FAST>;
-};
-
 &adc1 {
 	pinctrl-0 = <&adc1_in0_pc0 &adc1_in1_pc1>;
 	pinctrl-names = "default";
@@ -134,3 +144,48 @@
 		status = "okay";
 	};
 };
+
+stm32_lp_tick_source: &lptim1 {
+	clocks = <&rcc STM32_CLOCK(APB1, 31U)>,
+		<&rcc STM32_SRC_LSI LPTIM1_SEL(1)>;
+	status = "okay";
+};
+
+&spi1{
+	pinctrl-0 = <&spi1_sck_pa5 &spi1_miso_pa6 &spi1_mosi_pa7>;
+	cs-gpios = <&gpioa 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&dma1 {
+	status = "okay";
+};
+
+&dmamux1 {
+	status = "okay";
+};
+
+&rng {
+	clocks = <&rcc STM32_CLOCK(AHB1, 18U)>,
+		<&rcc STM32_SRC_HSI48 CLK48_SEL(1)>;
+	status = "okay";
+};
+
+&aes {
+	status = "okay";
+};
+
+zephyr_udc0: &usb {
+	clocks = <&rcc STM32_CLOCK(APB1, 13U)>,
+		 <&rcc STM32_SRC_HSI48 CLK48_SEL(1)>;
+	pinctrl-0 = <&usb_dm_pa11 &usb_dp_pa12>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&rtc {
+	clocks = <&rcc STM32_CLOCK(APB1, 10U)>,
+		 <&rcc STM32_SRC_LSE RTC_SEL(1)>;
+	status = "okay";
+};

boards/st/nucleo_u083rc/nucleo_u083rc.yaml

@@ -8,11 +8,18 @@ toolchain:
   - xtools
 supported:
   - adc
+  - aes
   - arduino_gpio
   - dac
+  - dma
   - gpio
   - i2c
+  - lptim
   - pwm
+  - rng
+  - rtc
+  - spi
   - usart
+  - usb
 ram: 40
 flash: 256