Commit f6b7dd09 authored by Kumar Gala's avatar Kumar Gala Committed by Anas Nashif
Browse files

pinmux: sifive: Convert SiFive pinmux to be devicetree based 



Add a simple pinctrl node for the IOF registers under the GPIO
controller node to be used by the pinmux driver.

Signed-off-by: default avatarKumar Gala <kumar.gala@linaro.org>
parent d6b4995d

boards/riscv/hifive1/pinmux.c

+3 −1
Original line number Diff line number Diff line
@@ -12,7 +12,9 @@ static int hifive1_pinmux_init(const struct device *dev) 
{

	ARG_UNUSED(dev);



	const struct device *p = device_get_binding(CONFIG_PINMUX_SIFIVE_0_NAME);

	const struct device *p = DEVICE_DT_GET(DT_NODELABEL(pinctrl));



	__ASSERT_NO_MSG(device_is_ready(p));



	/* UART0 RX */

	pinmux_pin_set(p, 16, SIFIVE_PINMUX_IOF0);

boards/riscv/hifive1_revb/pinmux.c

+3 −1
Original line number Diff line number Diff line
@@ -12,7 +12,9 @@ static int hifive1_revb_pinmux_init(const struct device *dev) 
{

	ARG_UNUSED(dev);



	const struct device *p = device_get_binding(CONFIG_PINMUX_SIFIVE_0_NAME);

	const struct device *p = DEVICE_DT_GET(DT_NODELABEL(pinctrl));



	__ASSERT_NO_MSG(device_is_ready(p));



#ifdef CONFIG_UART_SIFIVE

#ifdef CONFIG_UART_SIFIVE_PORT_0

drivers/pinmux/Kconfig.sifive

+1 −6
Original line number Diff line number Diff line
@@ -3,13 +3,8 @@ 
# Copyright (c) 2017 Jean-Paul Etienne <fractalclone@gmail.com>

# SPDX-License-Identifier: Apache-2.0



menuconfig PINMUX_SIFIVE

config PINMUX_SIFIVE

	bool "SiFive Freedom SOC pinmux driver"

	depends on SOC_SERIES_RISCV_SIFIVE_FREEDOM

	help

	  Enable driver for the SiFive Freedom SOC pinmux driver
 


config PINMUX_SIFIVE_0_NAME

	string "SIFIVE pinmux 0 driver name"

	default "pinmux0"

	depends on PINMUX_SIFIVE

drivers/pinmux/pinmux_sifive.c

+4 −2
Original line number Diff line number Diff line
@@ -4,6 +4,8 @@ 
 * SPDX-License-Identifier: Apache-2.0

 */



#define DT_DRV_COMPAT sifive_iof



/**

 * @brief PINMUX driver for the SiFive Freedom Processor

 */
@@ -94,10 +96,10 @@ static const struct pinmux_driver_api pinmux_sifive_driver_api = { 
};



static const struct pinmux_sifive_config pinmux_sifive_0_config = {

	.base = SIFIVE_PINMUX_0_BASE_ADDR,

	.base = DT_INST_REG_ADDR(0),

};



DEVICE_DEFINE(pinmux_sifive_0, CONFIG_PINMUX_SIFIVE_0_NAME,

DEVICE_DT_INST_DEFINE(0,

		    &pinmux_sifive_init, device_pm_control_nop, NULL,

		    &pinmux_sifive_0_config,

		    PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,

dts/bindings/pinctrl/sifive,iof.yaml

0 → 100644
+19 −0
Original line number Diff line number Diff line 
# Copyright (c) 2021, Linaro Limited

# SPDX-License-Identifier: Apache-2.0



description: |

  SiFive FE310 IO Function (iof)

  Binding covers the IOF_EN/IOF_SEL registers that are a subset of the GPIO

  controller.



compatible: "sifive,iof"



include: base.yaml



properties:

    reg:

      required: true



pinmux-cells:

  - pin

  - function

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