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drivers: pinctrl: add pinctrl drivers for arm v2m_beetle

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Adds pinctrl driver for the v2m_beetle board target.

Signed-off-by: Samuel Chee <samche01@arm.com>
Signed-off-by: Sudan Landge <sudan.landge@arm.com>
This commit is contained in:
Samuel Chee 2025-02-24 22:41:02 +00:00 • committed by Benjamin Cabé
commit 7e95006abf
7 changed files with 195 additions and 0 deletions
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51
soc/arm/beetle/pinctrl_soc.h Normal file
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/*
* Copyright 2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/dt-bindings/pinctrl/arm-v2m_beetle-pinctrl.h>
/**
* @brief Type to hold a pin's pinctrl configuration.
*/
struct beetle_pinctrl_soc_pin {
/** Pin number 0..52 */
uint32_t pin_num : 6;
/** Alternative function (UART, SPI, etc.) */
uint32_t alt_func : 3;
/** Enable the pin as an input */
uint32_t input_enable : 1;
};
typedef struct beetle_pinctrl_soc_pin pinctrl_soc_pin_t;
/**
* @brief Utility macro to initialize each pin.
*
* @param node_id Node identifier.
* @param prop Property name.
* @param idx Property entry index.
*/
#define Z_PINCTRL_STATE_PIN_INIT(node_id, prop, idx) \
{ \
BEETLE_GET_PIN_NUM(DT_PROP_BY_IDX(node_id, prop, idx)), \
BEETLE_GET_PIN_ALT_FUNC(DT_PROP_BY_IDX(node_id, prop, idx)), \
DT_PROP(node_id, input_enable), \
},
/**
* @brief Utility macro to initialize state pins contained in a given property.
*
* @param node_id Node identifier.
* @param prop Property name describing state pins.
*/
#define Z_PINCTRL_STATE_PINS_INIT(node_id, prop) \
{DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop), \
DT_FOREACH_PROP_ELEM, pinmux, \
Z_PINCTRL_STATE_PIN_INIT)}
#define BEETLE_GET_PIN_NUM(pinctrl) \
(((pinctrl) >> V2M_BEETLE_EXP_NUM_POS) & V2M_BEETLE_EXP_NUM_MASK)
#define BEETLE_GET_PIN_ALT_FUNC(pinctrl) \
(((pinctrl) >> V2M_BEETLE_ALT_FUNC_POS) & V2M_BEETLE_ALT_FUNC_MASK)