2c25182572
Add pinctrl driver for Realtek RTS5912. Signed-off-by: Lin Yu-Cheng <lin_yu_cheng@realtek.com>
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Copyright (c) 2024 Realtek Semiconductor Corporation, SIBG-SD7
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* Author: Lin Yu-Cheng <lin_yu_cheng@realtek.com>
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*/
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#define DT_DRV_COMPAT realtek_rts5912_pinctrl
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#include <zephyr/drivers/pinctrl.h>
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#include <zephyr/dt-bindings/pinctrl/realtek-rts5912-pinctrl.h>
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#include <reg/reg_gpio.h>
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#define REALTEK_RTS5912_PINMUX_GET_GPIO_PIN(n) \
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(((((n) >> REALTEK_RTS5912_GPIO_LOW_POS) & REALTEK_RTS5912_GPIO_LOW_MSK)) | \
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(((((n) >> REALTEK_RTS5912_GPIO_HIGH_POS) & REALTEK_RTS5912_GPIO_HIGH_MSK)) << 5))
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#define PURE_PINMUX_MASK (GENMASK(31, 24) | GENMASK(17, 8) | GENMASK(2, 0))
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#define REALTEK_RTS5912_GET_PURE_PINMUX(n) (n & PURE_PINMUX_MASK)
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static volatile GPIO_Type *pinctrl_base =
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(volatile GPIO_Type *)(DT_REG_ADDR(DT_NODELABEL(pinctrl)));
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int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt, uintptr_t reg)
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{
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ARG_UNUSED(reg);
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uint32_t pin, pinmux, func;
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for (uint8_t i = 0U; i < pin_cnt; i++) {
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pinmux = (uint32_t)pins[i];
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pin = REALTEK_RTS5912_PINMUX_GET_GPIO_PIN(pinmux);
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func = REALTEK_RTS5912_GET_PURE_PINMUX(pinmux);
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pinctrl_base->GCR[pin] = func;
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}
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return 0;
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}
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