7e95006abf
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>
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/*
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* Copyright 2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/dt-bindings/pinctrl/arm-v2m_beetle-pinctrl.h>
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/**
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* @brief Type to hold a pin's pinctrl configuration.
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*/
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struct beetle_pinctrl_soc_pin {
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/** Pin number 0..52 */
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uint32_t pin_num : 6;
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/** Alternative function (UART, SPI, etc.) */
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uint32_t alt_func : 3;
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/** Enable the pin as an input */
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uint32_t input_enable : 1;
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};
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typedef struct beetle_pinctrl_soc_pin pinctrl_soc_pin_t;
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/**
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* @brief Utility macro to initialize each pin.
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*
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* @param node_id Node identifier.
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* @param prop Property name.
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* @param idx Property entry index.
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*/
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#define Z_PINCTRL_STATE_PIN_INIT(node_id, prop, idx) \
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{ \
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BEETLE_GET_PIN_NUM(DT_PROP_BY_IDX(node_id, prop, idx)), \
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BEETLE_GET_PIN_ALT_FUNC(DT_PROP_BY_IDX(node_id, prop, idx)), \
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DT_PROP(node_id, input_enable), \
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},
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/**
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* @brief Utility macro to initialize state pins contained in a given property.
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*
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* @param node_id Node identifier.
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* @param prop Property name describing state pins.
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*/
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#define Z_PINCTRL_STATE_PINS_INIT(node_id, prop) \
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{DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop), \
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DT_FOREACH_PROP_ELEM, pinmux, \
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Z_PINCTRL_STATE_PIN_INIT)}
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#define BEETLE_GET_PIN_NUM(pinctrl) \
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(((pinctrl) >> V2M_BEETLE_EXP_NUM_POS) & V2M_BEETLE_EXP_NUM_MASK)
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#define BEETLE_GET_PIN_ALT_FUNC(pinctrl) \
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(((pinctrl) >> V2M_BEETLE_ALT_FUNC_POS) & V2M_BEETLE_ALT_FUNC_MASK)
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