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Message-Id: <20240627-mikrobus-scratch-spi-v5-7-9e6c148bf5f0@beagleboard.org>
Date: Thu, 27 Jun 2024 21:56:17 +0530
From: Ayush Singh <ayush@...gleboard.org>
To: Mark Brown <broonie@...nel.org>,
Vaishnav M A <vaishnav@...gleboard.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Derek Kiernan <derek.kiernan@....com>,
Dragan Cvetic <dragan.cvetic@....com>, Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Nishanth Menon <nm@...com>,
Vignesh Raghavendra <vigneshr@...com>, Tero Kristo <kristo@...nel.org>,
Michael Walle <mwalle@...nel.org>, Andrew Lunn <andrew@...n.ch>,
jkridner@...gleboard.org, robertcnelson@...gleboard.org
Cc: linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
Ayush Singh <ayush@...gleboard.org>
Subject: [PATCH v5 7/7] dts: ti: k3-am625-beagleplay: Add mikroBUS
DONOTMERGE
Add mikroBUS connector and some mikroBUS boards support for Beagleplay.
The mikroBUS boards node should probably be moved to a more appropriate
location but I am not quite sure where it should go since it is not
dependent on specific arch.
Signed-off-by: Ayush Singh <ayush@...gleboard.org>
---
arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts | 94 +++++++++++++++++++++++---
1 file changed, 86 insertions(+), 8 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts b/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
index 70de288d728e..3f3cd70345c4 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
+++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
@@ -38,6 +38,7 @@ aliases {
serial2 = &main_uart0;
usb0 = &usb0;
usb1 = &usb1;
+ mikrobus0 = &mikrobus0;
};
chosen {
@@ -227,6 +228,56 @@ simple-audio-card,codec {
};
};
+ mikrobus0: mikrobus-connector {
+ compatible = "mikrobus-connector";
+ pinctrl-names = "default", "pwm_default", "pwm_gpio",
+ "uart_default", "uart_gpio", "i2c_default",
+ "i2c_gpio", "spi_default", "spi_gpio";
+ pinctrl-0 = <&mikrobus_gpio_pins_default>;
+ pinctrl-1 = <&mikrobus_pwm_pins_default>;
+ pinctrl-2 = <&mikrobus_pwm_pins_gpio>;
+ pinctrl-3 = <&mikrobus_uart_pins_default>;
+ pinctrl-4 = <&mikrobus_uart_pins_gpio>;
+ pinctrl-5 = <&mikrobus_i2c_pins_default>;
+ pinctrl-6 = <&mikrobus_i2c_pins_gpio>;
+ pinctrl-7 = <&mikrobus_spi_pins_default>;
+ pinctrl-8 = <&mikrobus_spi_pins_gpio>;
+
+ mikrobus-gpio-names = "pwm", "int", "rx", "tx", "scl", "sda",
+ "mosi", "miso", "sck", "cs", "rst", "an";
+ mikrobus-gpios = <&main_gpio1 11 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 9 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 24 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 25 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 22 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 23 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 7 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 8 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 14 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 13 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 12 GPIO_ACTIVE_HIGH>,
+ <&main_gpio1 10 GPIO_ACTIVE_HIGH>;
+
+ spi-controller = <&main_spi2>;
+ spi-cs = <0>;
+ spi-cs-names = "default";
+
+ board = <&lsm6dsl_click>;
+ };
+
+ mikrobus_boards {
+ thermo_click: thermo-click {
+ compatible = "maxim,max31855k", "mikrobus-spi";
+ spi-max-frequency = <1000000>;
+ pinctrl-apply = "spi_default";
+ };
+
+ lsm6dsl_click: lsm6dsl-click {
+ compatible = "st,lsm6ds3", "mikrobus-spi";
+ spi-max-frequency = <1000000>;
+ pinctrl-apply = "spi_default";
+ };
+ };
};
&main_pmx0 {
@@ -387,6 +438,18 @@ AM62X_IOPAD(0x01f0, PIN_OUTPUT, 5) /* (A18) EXT_REFCLK1.CLKOUT0 */
>;
};
+ mikrobus_pwm_pins_default: mikrobus-pwm-default-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x01a4, PIN_INPUT, 2) /* (B20) MCASP0_ACLKX.ECAP2_IN_APWM_OUT */
+ >;
+ };
+
+ mikrobus_pwm_pins_gpio: mikrobus-pwm-gpio-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x01a4, PIN_INPUT, 7) /* (B20) MCASP0_ACLKX.GPIO1_11 */
+ >;
+ };
+
mikrobus_i2c_pins_default: mikrobus-i2c-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x01d0, PIN_INPUT_PULLUP, 2) /* (A15) UART0_CTSn.I2C3_SCL */
@@ -394,6 +457,13 @@ AM62X_IOPAD(0x01d4, PIN_INPUT_PULLUP, 2) /* (B15) UART0_RTSn.I2C3_SDA */
>;
};
+ mikrobus_i2c_pins_gpio: mikrobus-i2c-gpio-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x01d0, PIN_INPUT, 7) /* (A15) UART0_CTSn.GPIO1_22 */
+ AM62X_IOPAD(0x01d4, PIN_INPUT, 7) /* (B15) UART0_RTSn.GPIO1_23 */
+ >;
+ };
+
mikrobus_uart_pins_default: mikrobus-uart-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x01d8, PIN_INPUT, 1) /* (C15) MCAN0_TX.UART5_RXD */
@@ -401,6 +471,13 @@ AM62X_IOPAD(0x01dc, PIN_OUTPUT, 1) /* (E15) MCAN0_RX.UART5_TXD */
>;
};
+ mikrobus_uart_pins_gpio: mikrobus-uart-gpio-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x01d8, PIN_INPUT, 7) /* (C15) MCAN0_TX.GPIO1_24 */
+ AM62X_IOPAD(0x01dc, PIN_INPUT, 7) /* (E15) MCAN0_RX.GPIO1_25 */
+ >;
+ };
+
mikrobus_spi_pins_default: mikrobus-spi-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x01b0, PIN_INPUT, 1) /* (A20) MCASP0_ACLKR.SPI2_CLK */
@@ -410,6 +487,15 @@ AM62X_IOPAD(0x0198, PIN_INPUT, 1) /* (A19) MCASP0_AXR2.SPI2_D1 */
>;
};
+ mikrobus_spi_pins_gpio: mikrobus-spi-gpio-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x0194, PIN_INPUT, 7) /* (B19) MCASP0_AXR3.GPIO1_7 */
+ AM62X_IOPAD(0x0198, PIN_INPUT, 7) /* (A19) MCASP0_AXR2.GPIO1_8 */
+ AM62X_IOPAD(0x01ac, PIN_INPUT, 7) /* (E19) MCASP0_AFSR.GPIO1_13 */
+ AM62X_IOPAD(0x01b0, PIN_INPUT, 7) /* (A20) MCASP0_ACLKR.GPIO1_14 */
+ >;
+ };
+
mikrobus_gpio_pins_default: mikrobus-gpio-default-pins {
bootph-all;
pinctrl-single,pins = <
@@ -630,8 +716,6 @@ &main_gpio0 {
&main_gpio1 {
bootph-all;
- pinctrl-names = "default";
- pinctrl-0 = <&mikrobus_gpio_pins_default>;
gpio-line-names = "", "", "", "", "", /* 0-4 */
"SPE_RSTN", "SPE_INTN", "MIKROBUS_GPIO1_7", /* 5-7 */
"MIKROBUS_GPIO1_8", "MIKROBUS_GPIO1_9", /* 8-9 */
@@ -804,15 +888,11 @@ it66121_out: endpoint {
};
&main_i2c3 {
- pinctrl-names = "default";
- pinctrl-0 = <&mikrobus_i2c_pins_default>;
clock-frequency = <400000>;
status = "okay";
};
&main_spi2 {
- pinctrl-names = "default";
- pinctrl-0 = <&mikrobus_spi_pins_default>;
status = "okay";
};
@@ -876,8 +956,6 @@ &main_uart1 {
};
&main_uart5 {
- pinctrl-names = "default";
- pinctrl-0 = <&mikrobus_uart_pins_default>;
status = "okay";
};
--
2.45.2
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