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- // SPDX-License-Identifier: (GPL-2.0 OR MIT)
- /*
- * Microsemi SoCs pinctrl driver
- *
- * Author: <gregory.clement@bootlin.com>
- * License: Dual MIT/GPL
- * Copyright (c) 2018 Microsemi Corporation
- */
- #include <common.h>
- #include <config.h>
- #include <dm.h>
- #include <dm/device-internal.h>
- #include <dm/lists.h>
- #include <dm/pinctrl.h>
- #include <dm/root.h>
- #include <errno.h>
- #include <fdtdec.h>
- #include <linux/io.h>
- #include <asm/gpio.h>
- #include <asm/system.h>
- #include "mscc-common.h"
- enum {
- FUNC_NONE,
- FUNC_GPIO,
- FUNC_SIO,
- FUNC_TACHO,
- FUNC_TWI,
- FUNC_PHY_LED,
- FUNC_EXT_IRQ,
- FUNC_SFP,
- FUNC_SI,
- FUNC_PWM,
- FUNC_UART,
- FUNC_MAX
- };
- static char * const luton_function_names[] = {
- [FUNC_NONE] = "none",
- [FUNC_GPIO] = "gpio",
- [FUNC_SIO] = "sio",
- [FUNC_TACHO] = "tacho",
- [FUNC_TWI] = "twi",
- [FUNC_PHY_LED] = "phy_led",
- [FUNC_EXT_IRQ] = "ext_irq",
- [FUNC_SFP] = "sfp",
- [FUNC_SI] = "si",
- [FUNC_PWM] = "pwm",
- [FUNC_UART] = "uart",
- };
- MSCC_P(0, SIO, NONE, NONE);
- MSCC_P(1, SIO, NONE, NONE);
- MSCC_P(2, SIO, NONE, NONE);
- MSCC_P(3, SIO, NONE, NONE);
- MSCC_P(4, TACHO, NONE, NONE);
- MSCC_P(5, TWI, PHY_LED, NONE);
- MSCC_P(6, TWI, PHY_LED, NONE);
- MSCC_P(7, NONE, PHY_LED, NONE);
- MSCC_P(8, EXT_IRQ, PHY_LED, NONE);
- MSCC_P(9, EXT_IRQ, PHY_LED, NONE);
- MSCC_P(10, SFP, PHY_LED, NONE);
- MSCC_P(11, SFP, PHY_LED, NONE);
- MSCC_P(12, SFP, PHY_LED, NONE);
- MSCC_P(13, SFP, PHY_LED, NONE);
- MSCC_P(14, SI, PHY_LED, NONE);
- MSCC_P(15, SI, PHY_LED, NONE);
- MSCC_P(16, SI, PHY_LED, NONE);
- MSCC_P(17, SFP, PHY_LED, NONE);
- MSCC_P(18, SFP, PHY_LED, NONE);
- MSCC_P(19, SFP, PHY_LED, NONE);
- MSCC_P(20, SFP, PHY_LED, NONE);
- MSCC_P(21, SFP, PHY_LED, NONE);
- MSCC_P(22, SFP, PHY_LED, NONE);
- MSCC_P(23, SFP, PHY_LED, NONE);
- MSCC_P(24, SFP, PHY_LED, NONE);
- MSCC_P(25, SFP, PHY_LED, NONE);
- MSCC_P(26, SFP, PHY_LED, NONE);
- MSCC_P(27, SFP, PHY_LED, NONE);
- MSCC_P(28, SFP, PHY_LED, NONE);
- MSCC_P(29, PWM, NONE, NONE);
- MSCC_P(30, UART, NONE, NONE);
- MSCC_P(31, UART, NONE, NONE);
- #define LUTON_PIN(n) { \
- .name = "GPIO_"#n, \
- .drv_data = &mscc_pin_##n \
- }
- static const struct mscc_pin_data luton_pins[] = {
- LUTON_PIN(0),
- LUTON_PIN(1),
- LUTON_PIN(2),
- LUTON_PIN(3),
- LUTON_PIN(4),
- LUTON_PIN(5),
- LUTON_PIN(6),
- LUTON_PIN(7),
- LUTON_PIN(8),
- LUTON_PIN(9),
- LUTON_PIN(10),
- LUTON_PIN(11),
- LUTON_PIN(12),
- LUTON_PIN(13),
- LUTON_PIN(14),
- LUTON_PIN(15),
- LUTON_PIN(16),
- LUTON_PIN(17),
- LUTON_PIN(18),
- LUTON_PIN(19),
- LUTON_PIN(20),
- LUTON_PIN(21),
- LUTON_PIN(22),
- LUTON_PIN(23),
- LUTON_PIN(24),
- LUTON_PIN(25),
- LUTON_PIN(26),
- LUTON_PIN(27),
- LUTON_PIN(28),
- LUTON_PIN(29),
- LUTON_PIN(30),
- LUTON_PIN(31),
- };
- static const unsigned long luton_gpios[] = {
- [MSCC_GPIO_OUT_SET] = 0x00,
- [MSCC_GPIO_OUT_CLR] = 0x04,
- [MSCC_GPIO_OUT] = 0x08,
- [MSCC_GPIO_IN] = 0x0c,
- [MSCC_GPIO_OE] = 0x10,
- [MSCC_GPIO_INTR] = 0x14,
- [MSCC_GPIO_INTR_ENA] = 0x18,
- [MSCC_GPIO_INTR_IDENT] = 0x1c,
- [MSCC_GPIO_ALT0] = 0x20,
- [MSCC_GPIO_ALT1] = 0x24,
- };
- static int luton_gpio_probe(struct udevice *dev)
- {
- struct gpio_dev_priv *uc_priv;
- uc_priv = dev_get_uclass_priv(dev);
- uc_priv->bank_name = "luton-gpio";
- uc_priv->gpio_count = ARRAY_SIZE(luton_pins);
- return 0;
- }
- static struct driver luton_gpio_driver = {
- .name = "luton-gpio",
- .id = UCLASS_GPIO,
- .probe = luton_gpio_probe,
- .ops = &mscc_gpio_ops,
- };
- int luton_pinctrl_probe(struct udevice *dev)
- {
- int ret;
- ret = mscc_pinctrl_probe(dev, FUNC_MAX, luton_pins,
- ARRAY_SIZE(luton_pins), luton_function_names,
- luton_gpios);
- if (ret)
- return ret;
- ret = device_bind(dev, &luton_gpio_driver, "luton-gpio", NULL,
- dev_of_offset(dev), NULL);
- return 0;
- }
- static const struct udevice_id luton_pinctrl_of_match[] = {
- {.compatible = "mscc,luton-pinctrl"},
- {},
- };
- U_BOOT_DRIVER(luton_pinctrl) = {
- .name = "luton-pinctrl",
- .id = UCLASS_PINCTRL,
- .of_match = of_match_ptr(luton_pinctrl_of_match),
- .probe = luton_pinctrl_probe,
- .priv_auto_alloc_size = sizeof(struct mscc_pinctrl),
- .ops = &mscc_pinctrl_ops,
- };
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