boards: lpcxpresso54114: Enable spi instance 5

Enables spi instance 5 on the lpcxpresso54114 board. Configures pinmuxes
and clocks, and updates board documentation accordingly.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>

boards/arm/lpcxpresso54114/Kconfig.defconfig

@@ -36,4 +36,11 @@ config GPIO_MCUX_LPC_PORT1
 
 endif # GPIO_MCUX_LPC
 
+if SPI
+
+config SPI_5
+	default y
+
+endif # SPI
+
 endif # BOARD_LPCXPRESSO54114_M4 || BOARD_LPCXPRESSO54114_M0

boards/arm/lpcxpresso54114/doc/index.rst

@@ -62,6 +62,8 @@ features:
 +-----------+------------+-------------------------------------+
 | GPIO      | on-chip    | gpio                                |
 +-----------+------------+-------------------------------------+
+| SPI       | on-chip    | spi                                 |
++-----------+------------+-------------------------------------+
 | USART     | on-chip    | serial port-polling                 |
 +-----------+------------+-------------------------------------+
 
@@ -85,8 +87,16 @@ functionality of a pin.
 +---------+-----------------+----------------------------+
 | PIO0_1  | USART           | USART TX                   |
 +---------+-----------------+----------------------------+
+| PIO0_18 | SPI             | SPI MISO                   |
++---------+-----------------+----------------------------+
+| PIO0_19 | SPI             | SPI SCK                    |
++---------+-----------------+----------------------------+
+| PIO0_20 | SPI             | SPI MOSI                   |
++---------+-----------------+----------------------------+
 | PIO0_29 | GPIO            | RED LED                    |
 +---------+-----------------+----------------------------+
+| PIO1_1  | SPI             | SPI SSEL2                  |
++---------+-----------------+----------------------------+
 | PIO1_9  | GPIO            | BLUE_LED                   |
 +---------+-----------------+----------------------------+
 | PIO1_10 | GPIO            | GREEN LED                  |

boards/arm/lpcxpresso54114/lpcxpresso54114.dtsi

@@ -11,6 +11,7 @@
 		led0 = &red_led;
 		led1 = &green_led;
 		led2 = &blue_led;
+		spi-5 = &spi5;
 	};
 
 	leds {
@@ -32,3 +33,5 @@
 		};
 	};
 };
+
+arduino_spi: &spi5 {};

boards/arm/lpcxpresso54114/lpcxpresso54114_m4.dts

@@ -67,3 +67,7 @@
 &blue_led {
 	status = "okay";
 };
+
+&spi5 {
+	status = "okay";
+};

boards/arm/lpcxpresso54114/lpcxpresso54114_m4.yaml

@@ -15,4 +15,6 @@ toolchain:
   - gnuarmemb
   - xtools
 supported:
+  - arduino_spi
   - gpio
+  - spi

boards/arm/lpcxpresso54114/pinmux.c

@@ -106,6 +106,40 @@ static int lpcxpresso_54114_pinmux_init(struct device *dev)
 	pinmux_pin_set(port1, 10, port1_pin10_config);
 #endif
 
+#ifdef CONFIG_SPI_5
+	/* PORT0 PIN18 is configured as FC5_TXD_SCL_MISO */
+	pinmux_pin_set(port0, 18, IOCON_PIO_FUNC1 |
+				  IOCON_PIO_MODE_PULLUP |
+				  IOCON_PIO_INV_DI |
+				  IOCON_PIO_DIGITAL_EN |
+				  IOCON_PIO_SLEW_STANDARD |
+				  IOCON_PIO_OPENDRAIN_DI);
+
+	/* PORT0 PIN19 is configured as FC5_SCK-SPIFI_CSn */
+	pinmux_pin_set(port0, 19, IOCON_PIO_FUNC1 |
+				  IOCON_PIO_MODE_PULLUP |
+				  IOCON_PIO_INV_DI |
+				  IOCON_PIO_DIGITAL_EN |
+				  IOCON_PIO_SLEW_STANDARD |
+				  IOCON_PIO_OPENDRAIN_DI);
+
+	/* PORT0 PIN20 is configured as FC5_RXD_SDA_MOSI */
+	pinmux_pin_set(port0, 20, IOCON_PIO_FUNC1 |
+				  IOCON_PIO_MODE_PULLUP |
+				  IOCON_PIO_INV_DI |
+				  IOCON_PIO_DIGITAL_EN |
+				  IOCON_PIO_SLEW_STANDARD |
+				  IOCON_PIO_OPENDRAIN_DI);
+
+	/* PORT1 PIN1 is configured as FC5_SSEL2 */
+	pinmux_pin_set(port1,  1, IOCON_PIO_FUNC4 |
+				  IOCON_PIO_MODE_PULLUP |
+				  IOCON_PIO_INV_DI |
+				  IOCON_PIO_DIGITAL_EN |
+				  IOCON_PIO_SLEW_STANDARD |
+				  IOCON_PIO_OPENDRAIN_DI);
+#endif /* CONFIG_SPI_5 */
+
 	return 0;
 }
 

soc/arm/nxp_lpc/lpc54xxx/soc.c

@@ -65,6 +65,15 @@ static ALWAYS_INLINE void clock_init(void)
 
 	/* Attach 12 MHz clock to FLEXCOMM0 */
 	CLOCK_AttachClk(kFRO12M_to_FLEXCOMM0);
+
+#ifdef CONFIG_SPI_5
+	/* Attach 12 MHz clock to FLEXCOMM5 */
+	CLOCK_AttachClk(kFRO12M_to_FLEXCOMM5);
+
+	/* reset FLEXCOMM for SPI */
+	RESET_PeripheralReset(kFC5_RST_SHIFT_RSTn);
+#endif /* CONFIG_SPI_5 */
+
 #endif /* CONFIG_SOC_LPC54114_M4 */
 }
 

soc/arm/nxp_lpc/lpc54xxx/soc.h

@@ -28,6 +28,8 @@
 #define IOCON_PIO_FUNC0		0x00u
 #define IOCON_PIO_FUNC1		0x01u
 #define IOCON_PIO_FUNC2		0x02u
+#define IOCON_PIO_FUNC3		0x03u
+#define IOCON_PIO_FUNC4		0x04u
 #define IOCON_PIO_INPFILT_OFF	0x0100u
 #define IOCON_PIO_INV_DI	0x00u
 #define IOCON_PIO_MODE_INACT	0x00u