Commit db2ca70a authored by Kumar Gala's avatar Kumar Gala Committed by Kumar Gala
Browse files

dts: pulpino: Add device tree support for GPIO controller 



Add the needed bits to get device tree support for the GPIO controller
on the Zedboard-Pulpino.  This will allow us to move LED & button info
into the board.dts.

Signed-off-by: default avatarKumar Gala <kumar.gala@linaro.org>
parent be4f53fa

boards/riscv32/zedboard_pulpino/zedboard_pulpino.dts

+4 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 


	aliases {

		uart-0 = &uart0;

		gpio-0 = &gpio0;

	};



	chosen {
@@ -26,3 +27,6 @@ 
	current-speed = <115200>;

};



&gpio0 {

	status = "ok";

};

drivers/gpio/Kconfig.pulpino

+1 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
menuconfig GPIO_PULPINO

	bool "Pulpino GPIO controller driver"

	depends on GPIO && SOC_RISCV32_PULPINO

	select HAS_DTS_GPIO

	help

	  Enable driver for the Pulpino GPIO controller.

drivers/gpio/gpio_pulpino.c

+3 −3
Original line number Diff line number Diff line
@@ -258,7 +258,7 @@ static int gpio_pulpino_init(struct device *dev) 
static void gpio_pulpino_cfg_0(void);



static const struct gpio_pulpino_config gpio_pulpino_config0 = {

	.gpio_base_addr    = PULP_GPIO_0_BASE,

	.gpio_base_addr    = GPIO_0_BASE_ADDRESS,

	.gpio_cfg_func     = gpio_pulpino_cfg_0,

};
@@ -271,10 +271,10 @@ DEVICE_AND_API_INIT(gpio_pulpino_0, "gpio0", gpio_pulpino_init, 


static void gpio_pulpino_cfg_0(void)

{

	IRQ_CONNECT(PULP_GPIO_0_IRQ,

	IRQ_CONNECT(GPIO_0_IRQ,

		    0,

		    gpio_pulpino_irq_handler,

		    DEVICE_GET(gpio_pulpino_0),

		    0);

	irq_enable(PULP_GPIO_0_IRQ);

	irq_enable(GPIO_0_IRQ);

}

dts/bindings/gpio/pulp,pulpino-gpio.yaml

0 → 100644
+45 −0
Original line number Diff line number Diff line 
#

# Copyright (c) 2018, Linaro Inc.

#

# SPDX-License-Identifier: Apache-2.0

#

---

title: PULPINO GPIO Controller

id: pulp,pulpino-gpio

version: 0.1



description: >

    This is a representation of the Pulpino GPIO node



properties:

    compatible:

      type: string

      category: required

      description: compatible strings

      constraint: "pulp,pulpino-gpio"

      generation: define



    reg:

      type: int

      description: mmio register space

      generation: define

      category: required



    interrupts:

      type: compound

      category: required

      description: required interrupts

      generation: define



    label:

      type: string

      category: required

      description: Human readable string describing the device (used by Zephyr for API name)

      generation: define



cell_string: GPIO



"#cells":

  - pin

  - flags

...

dts/riscv32/pulpino.dtsi

+13 −0
Original line number Diff line number Diff line
@@ -4,6 +4,8 @@ 
 * SPDX-License-Identifier: Apache-2.0

 */



#include <dt-bindings/gpio/gpio.h>



/ {

	#address-cells = <1>;

	#size-cells = <1>;
@@ -44,6 +46,17 @@ 
			status = "disabled";

		};



		gpio0: gpio@1a101000 {

			compatible = "pulp,pulpino-gpio";

			gpio-controller;

			reg = <0x1a101000 0x1000>;

			interrupts = <25>;

			interrupt-parent = <&intc>;

			label = "GPIO";

			status = "disabled";

			#gpio-cells = <2>;

		};



		intc: interrupt-controller@1a104000 {

			#interrupt-cells = <1>;

			compatible = "pulp,pulpino-event-unit";

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