boards: arm: mixmrt1040_evk: enable RT1040 EVK I2C support (d2465dc6) · Commits · Wenxi XU / zephyr

boards/arm/mimxrt1040_evk/doc/index.rst

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Changes for boards/arm/mimxrt1040_evk/doc/index.rst: 8 added lines, 0 removed lines.
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		@@ -99,6 +99,8 @@ already supported, which can also be re-used on this mimxrt1040_evk board:
		+-----------+------------+-------------------------------------+
		\| DMA \| on-chip \| dma \|
		+-----------+------------+-------------------------------------+
		\| I2C \| on-chip \| i2c \|
		+-----------+------------+-------------------------------------+

		The default configuration can be found in the defconfig file:

		@@ -134,6 +136,12 @@ The MIMXRT1040 SoC has five pairs of pinmux/gpio controllers.
		+---------------+-----------------+---------------------------+
		\| GPIO_SD_B0_00 \| LPSPI1_SCK \| SPI Clock \|
		+---------------+-----------------+---------------------------+
		\| GPIO_SD_B0_00 \| LPSPI1_SCK \| SPI Clock \|
		+---------------+-----------------+---------------------------+
		\| GPIO_AD_B1_00 \| LPI2C1_SCL \| I2C Clock \|
		+---------------+-----------------+---------------------------+
		\| GPIO_AD_B1_01 \| LPI2C1_SDA \| I2C Data \|
		+---------------+-----------------+---------------------------+

		.. note::
		In order to use the SPI peripheral on this board, resistors R350, R346,

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Changes for boards/arm/mimxrt1040_evk/mimxrt1040_evk-pinctrl.dtsi: 25 added lines, 0 removed lines.
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		@@ -30,6 +30,31 @@
		};
		};

		/* LPI2C1 SDA: J17 pin 9, LPI2C1 SCL: J17 pin 10 */
		pinmux_lpi2c1: pinmux_lpi2c1 {
		group0 {
		pinmux = <&iomuxc_gpio_ad_b1_00_lpi2c1_scl>,
		<&iomuxc_gpio_ad_b1_01_lpi2c1_sda>;
		drive-strength = "r0-6";
		drive-open-drain;
		slew-rate = "slow";
		nxp,speed = "100-mhz";
		input-enable;
		};
		};

		/* Conflicts with lpspi1 pin routing. SDA: J17 pin 3, SCL: J17 pin 6 */
		pinmux_lpi2c3: pinmux_lpi2c3 {
		group0 {
		pinmux = <&iomuxc_gpio_sd_b0_00_lpi2c3_scl>,
		<&iomuxc_gpio_sd_b0_01_lpi2c3_sda>;
		drive-strength = "r0-6";
		slew-rate = "slow";
		nxp,speed = "100-mhz";
		input-enable;
		};
		};

		/* Note that R350, R346, and R360 must be populated to use SPI */
		pinmux_lpspi1: pinmux_lpspi1 {
		group0 {

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Changes for boards/arm/mimxrt1040_evk/mimxrt1040_evk.dts: 12 added lines, 0 removed lines.
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		@@ -129,6 +129,18 @@
		status = "okay";
		};

		&lpi2c1 {
		status = "okay";
		pinctrl-0 = <&pinmux_lpi2c1>;
		pinctrl-names = "default";
		};

		/* Leave LPI2C3 disabled by default, since it conflicts with LPSPI1 pins */
		&lpi2c3 {
		pinctrl-0 = <&pinmux_lpi2c3>;
		pinctrl-names = "default";
		};

		/* GPT and Systick are enabled. If power management is enabled, the GPT
		* timer will be used instead of systick, as allows the core clock to
		* be gated.

+1 −0

0 → 100644

+1 −0

Changes for tests/drivers/i2c/i2c_target_api/boards/mimxrt1040_evk.conf: 1 added line, 0 removed lines.
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		CONFIG_I2C_VIRTUAL=n