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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_ofnode(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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