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- // SPDX-License-Identifier: (GPL-2.0 OR MIT)
- /*
- * Microsemi SoCs pinctrl driver
- *
- * Author: <horatiu.vultur@microchip.com>
- * Copyright (c) 2019 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_IRQ0,
- FUNC_IRQ1,
- FUNC_MIIM1,
- FUNC_PCI_WAKE,
- FUNC_PTP0,
- FUNC_PTP1,
- FUNC_PTP2,
- FUNC_PTP3,
- FUNC_PWM,
- FUNC_RECO_CLK0,
- FUNC_RECO_CLK1,
- FUNC_SFP0,
- FUNC_SFP1,
- FUNC_SFP2,
- FUNC_SFP3,
- FUNC_SFP4,
- FUNC_SFP5,
- FUNC_SFP6,
- FUNC_SFP7,
- FUNC_SFP8,
- FUNC_SFP9,
- FUNC_SFP10,
- FUNC_SIO,
- FUNC_SI,
- FUNC_TACHO,
- FUNC_TWI,
- FUNC_TWI_SCL_M,
- FUNC_UART,
- FUNC_UART2,
- FUNC_MD,
- FUNC_PTP1588,
- FUNC_MAX
- };
- static char * const serval_function_names[] = {
- [FUNC_NONE] = "none",
- [FUNC_GPIO] = "gpio",
- [FUNC_IRQ0] = "irq0",
- [FUNC_IRQ1] = "irq1",
- [FUNC_MIIM1] = "miim1",
- [FUNC_PCI_WAKE] = "pci_wake",
- [FUNC_PTP0] = "ptp0",
- [FUNC_PTP1] = "ptp1",
- [FUNC_PTP2] = "ptp2",
- [FUNC_PTP3] = "ptp3",
- [FUNC_PWM] = "pwm",
- [FUNC_RECO_CLK0] = "reco_clk0",
- [FUNC_RECO_CLK1] = "reco_clk1",
- [FUNC_SFP0] = "sfp0",
- [FUNC_SFP1] = "sfp1",
- [FUNC_SFP2] = "sfp2",
- [FUNC_SFP3] = "sfp3",
- [FUNC_SFP4] = "sfp4",
- [FUNC_SFP5] = "sfp5",
- [FUNC_SFP6] = "sfp6",
- [FUNC_SFP7] = "sfp7",
- [FUNC_SFP8] = "sfp8",
- [FUNC_SFP9] = "sfp9",
- [FUNC_SFP10] = "sfp10",
- [FUNC_SIO] = "sio",
- [FUNC_SI] = "si",
- [FUNC_TACHO] = "tacho",
- [FUNC_TWI] = "twi",
- [FUNC_TWI_SCL_M] = "twi_scl_m",
- [FUNC_UART] = "uart",
- [FUNC_UART2] = "uart2",
- [FUNC_MD] = "md",
- [FUNC_PTP1588] = "1588",
- };
- 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, PWM, NONE, NONE);
- MSCC_P(6, TWI, NONE, NONE);
- MSCC_P(7, TWI, NONE, NONE);
- MSCC_P(8, SI, NONE, NONE);
- MSCC_P(9, SI, MD, NONE);
- MSCC_P(10, SI, MD, NONE);
- MSCC_P(11, SFP0, MD, TWI_SCL_M);
- MSCC_P(12, SFP1, MD, TWI_SCL_M);
- MSCC_P(13, SFP2, UART2, TWI_SCL_M);
- MSCC_P(14, SFP3, UART2, TWI_SCL_M);
- MSCC_P(15, SFP4, PTP1588, TWI_SCL_M);
- MSCC_P(16, SFP5, PTP1588, TWI_SCL_M);
- MSCC_P(17, SFP6, PCI_WAKE, TWI_SCL_M);
- MSCC_P(18, SFP7, NONE, TWI_SCL_M);
- MSCC_P(19, SFP8, NONE, TWI_SCL_M);
- MSCC_P(20, SFP9, NONE, TWI_SCL_M);
- MSCC_P(21, SFP10, NONE, TWI_SCL_M);
- MSCC_P(22, NONE, NONE, NONE);
- MSCC_P(23, NONE, NONE, NONE);
- MSCC_P(24, NONE, NONE, NONE);
- MSCC_P(25, NONE, NONE, NONE);
- MSCC_P(26, UART, NONE, NONE);
- MSCC_P(27, UART, NONE, NONE);
- MSCC_P(28, IRQ0, NONE, NONE);
- MSCC_P(29, IRQ1, NONE, NONE);
- MSCC_P(30, PTP1588, NONE, NONE);
- MSCC_P(31, PTP1588, NONE, NONE);
- #define SERVAL_PIN(n) { \
- .name = "GPIO_"#n, \
- .drv_data = &mscc_pin_##n \
- }
- static const struct mscc_pin_data serval_pins[] = {
- SERVAL_PIN(0),
- SERVAL_PIN(1),
- SERVAL_PIN(2),
- SERVAL_PIN(3),
- SERVAL_PIN(4),
- SERVAL_PIN(5),
- SERVAL_PIN(6),
- SERVAL_PIN(7),
- SERVAL_PIN(8),
- SERVAL_PIN(9),
- SERVAL_PIN(10),
- SERVAL_PIN(11),
- SERVAL_PIN(12),
- SERVAL_PIN(13),
- SERVAL_PIN(14),
- SERVAL_PIN(15),
- SERVAL_PIN(16),
- SERVAL_PIN(17),
- SERVAL_PIN(18),
- SERVAL_PIN(19),
- SERVAL_PIN(20),
- SERVAL_PIN(21),
- SERVAL_PIN(22),
- SERVAL_PIN(23),
- SERVAL_PIN(24),
- SERVAL_PIN(25),
- SERVAL_PIN(26),
- SERVAL_PIN(27),
- SERVAL_PIN(28),
- SERVAL_PIN(29),
- SERVAL_PIN(30),
- SERVAL_PIN(31),
- };
- static const unsigned long serval_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 serval_gpio_probe(struct udevice *dev)
- {
- struct gpio_dev_priv *uc_priv;
- uc_priv = dev_get_uclass_priv(dev);
- uc_priv->bank_name = "serval-gpio";
- uc_priv->gpio_count = ARRAY_SIZE(serval_pins);
- return 0;
- }
- static struct driver serval_gpio_driver = {
- .name = "serval-gpio",
- .id = UCLASS_GPIO,
- .probe = serval_gpio_probe,
- .ops = &mscc_gpio_ops,
- };
- static int serval_pinctrl_probe(struct udevice *dev)
- {
- int ret;
- ret = mscc_pinctrl_probe(dev, FUNC_MAX, serval_pins,
- ARRAY_SIZE(serval_pins),
- serval_function_names,
- serval_gpios);
- if (ret)
- return ret;
- ret = device_bind(dev, &serval_gpio_driver, "serval-gpio", NULL,
- dev_of_offset(dev), NULL);
- if (ret)
- return ret;
- return 0;
- }
- static const struct udevice_id serval_pinctrl_of_match[] = {
- { .compatible = "mscc,serval-pinctrl" },
- {},
- };
- U_BOOT_DRIVER(serval_pinctrl) = {
- .name = "serval-pinctrl",
- .id = UCLASS_PINCTRL,
- .of_match = of_match_ptr(serval_pinctrl_of_match),
- .probe = serval_pinctrl_probe,
- .priv_auto_alloc_size = sizeof(struct mscc_pinctrl),
- .ops = &mscc_pinctrl_ops,
- };
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