Commit 4c81289a authored by Daniel DeGrasse's avatar Daniel DeGrasse Committed by Christopher Friedt
Browse files

boards: mimxrt1050_evk: Added support for LPSPI1 peripheral 



RT1050 has multiple LPSPI peripherals. The simplest to access is LPSPI1,
which can be connected by bridging solder jumpers on the board. Enable
this SPI peripheral, and set it as default for SPI tests.

Signed-off-by: default avatarDaniel DeGrasse <daniel.degrasse@nxp.com>
parent bd925abe

boards/arm/mimxrt1050_evk/doc/index.rst

+10 −6
Original line number Diff line number Diff line
@@ -131,9 +131,9 @@ The MIMXRT1050 SoC has five pairs of pinmux/gpio controllers. 
+---------------+-----------------+---------------------------+

| Name          | Function        | Usage                     |

+===============+=================+===========================+

| GPIO_AD_B0_00 | LPSPI3_SCK      | SPI                       |

| GPIO_AD_B0_00 | LPSPI1_SCK      | SPI                       |

+---------------+-----------------+---------------------------+

| GPIO_AD_B0_01 | LPSPI3_SDO      | SPI                       |

| GPIO_AD_B0_01 | LPSPI1_SDO      | SPI                       |

+---------------+-----------------+---------------------------+

| GPIO_AD_B0_02 | LPSPI3_SDI/LCD_RST| SPI/LCD Display         |

+---------------+-----------------+---------------------------+
@@ -231,19 +231,23 @@ The MIMXRT1050 SoC has five pairs of pinmux/gpio controllers. 
+---------------+-----------------+---------------------------+

| GPIO_AD_B0_10 | ENET_INT        | Ethernet                  |

+---------------+-----------------+---------------------------+

| GPIO_SD_B0_00 | USDHC1_CMD      | SD Card                   |

| GPIO_SD_B0_00 | USDHC1_CMD/LPSPI1_SCK | SD Card/SPI         |

+---------------+-----------------+---------------------------+

| GPIO_SD_B0_01 | USDHC1_CLK      | SD Card                   |

| GPIO_SD_B0_01 | USDHC1_CLK/LPSPI1_PCS0 | SD Card/SPI        |

+---------------+-----------------+---------------------------+

| GPIO_SD_B0_02 | USDHC1_DATA0    | SD Card                   |

| GPIO_SD_B0_02 | USDHC1_DATA0/LPSPI1_SDO | SD Card/SPI       |

+---------------+-----------------+---------------------------+

| GPIO_SD_B0_03 | USDHC1_DATA1    | SD Card                   |

| GPIO_SD_B0_03 | USDHC1_DATA1/LPSPI1_SDI | SD Card/SPI       |

+---------------+-----------------+---------------------------+

| GPIO_SD_B0_04 | USDHC1_DATA2    | SD Card                   |

+---------------+-----------------+---------------------------+

| GPIO_SD_B0_05 | USDHC1_DATA3    | SD Card                   |

+---------------+-----------------+---------------------------+



.. note::

        In order to use the SPI peripheral on this board, resistors R278,

        R279, R280, and R281 must be populated with zero ohm resistors



System Clock

============

boards/arm/mimxrt1050_evk/mimxrt1050_evk.dts

+4 −0
Original line number Diff line number Diff line
@@ -141,6 +141,10 @@ arduino_serial: &lpuart3 {}; 
	current-speed = <115200>;

};



&lpspi1 {

	status = "okay";

};



&lpspi3 {

	status = "okay";

};

boards/arm/mimxrt1050_evk/pinmux.c

+34 −0
Original line number Diff line number Diff line
@@ -183,6 +183,40 @@ static int mimxrt1050_evk_init(const struct device *dev) 
			    IOMUXC_SW_PAD_CTL_PAD_DSE(6));

#endif



#if DT_NODE_HAS_STATUS(DT_NODELABEL(lpspi1), okay) && CONFIG_SPI

#if DT_NODE_HAS_STATUS(DT_NODELABEL(usdhc1), okay) && CONFIG_DISK_DRIVER_SDMMC

	#error "SPI and SDMMC pins conflict on this board." \

		"Please disable one via KConfig or device tree"

#else

	/* LPSPI1 SCK, SDO, SDI, PCS0 */

	/* Expose these pins by connecting R278, R279, R280, and R281 on evk board */

	IOMUXC_SetPinMux(IOMUXC_GPIO_SD_B0_00_LPSPI1_SCK, 0);

	IOMUXC_SetPinMux(IOMUXC_GPIO_SD_B0_01_LPSPI1_PCS0, 0);

	IOMUXC_SetPinMux(IOMUXC_GPIO_SD_B0_02_LPSPI1_SDO, 0);

	IOMUXC_SetPinMux(IOMUXC_GPIO_SD_B0_03_LPSPI1_SDI, 0);



	IOMUXC_SetPinConfig(IOMUXC_GPIO_SD_B0_00_LPSPI1_SCK,

			    IOMUXC_SW_PAD_CTL_PAD_PKE_MASK |

			    IOMUXC_SW_PAD_CTL_PAD_SPEED(2) |

			    IOMUXC_SW_PAD_CTL_PAD_DSE(6));



	IOMUXC_SetPinConfig(IOMUXC_GPIO_SD_B0_01_LPSPI1_PCS0,

			    IOMUXC_SW_PAD_CTL_PAD_PKE_MASK |

			    IOMUXC_SW_PAD_CTL_PAD_SPEED(2) |

			    IOMUXC_SW_PAD_CTL_PAD_DSE(6));



	IOMUXC_SetPinConfig(IOMUXC_GPIO_SD_B0_02_LPSPI1_SDO,

			    IOMUXC_SW_PAD_CTL_PAD_PKE_MASK |

			    IOMUXC_SW_PAD_CTL_PAD_SPEED(2) |

			    IOMUXC_SW_PAD_CTL_PAD_DSE(6));



	IOMUXC_SetPinConfig(IOMUXC_GPIO_SD_B0_03_LPSPI1_SDI,

			    IOMUXC_SW_PAD_CTL_PAD_PKE_MASK |

			    IOMUXC_SW_PAD_CTL_PAD_SPEED(2) |

			    IOMUXC_SW_PAD_CTL_PAD_DSE(6));

#endif

#endif



#if DT_NODE_HAS_STATUS(DT_NODELABEL(lpspi3), okay) && CONFIG_SPI

	/* LPSPI3 SCK, SDO, SDI, PCS0 */

	IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_00_LPSPI3_SCK, 0);

tests/drivers/spi/spi_loopback/boards/mimxrt1050_evk.conf

+1 −1
Original line number Diff line number Diff line
@@ -4,4 +4,4 @@ 
# SPDX-License-Identifier: Apache-2.0

#



CONFIG_SPI_LOOPBACK_DRV_NAME="SPI_3"
 
CONFIG_SPI_LOOPBACK_DRV_NAME="SPI_1"

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