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- // SPDX-License-Identifier: (GPL-2.0 OR MIT)
- /*
- * Microsemi SoCs pinctrl driver
- *
- * Author: <alexandre.belloni@free-electrons.com>
- * Author: <gregory.clement@bootlin.com>
- * License: Dual MIT/GPL
- * Copyright (c) 2017 Microsemi Corporation
- */
- #include <asm/gpio.h>
- #include <asm/system.h>
- #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 "mscc-common.h"
- enum {
- FUNC_NONE,
- FUNC_GPIO,
- FUNC_IRQ0_IN,
- FUNC_IRQ0_OUT,
- FUNC_IRQ1_IN,
- FUNC_IRQ1_OUT,
- 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_SG0,
- FUNC_SI,
- FUNC_TACHO,
- FUNC_TWI,
- FUNC_TWI_SCL_M,
- FUNC_UART,
- FUNC_UART2,
- FUNC_MAX
- };
- static char * const ocelot_function_names[] = {
- [FUNC_NONE] = "none",
- [FUNC_GPIO] = "gpio",
- [FUNC_IRQ0_IN] = "irq0_in",
- [FUNC_IRQ0_OUT] = "irq0_out",
- [FUNC_IRQ1_IN] = "irq1_in",
- [FUNC_IRQ1_OUT] = "irq1_out",
- [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_SG0] = "sg0",
- [FUNC_SI] = "si",
- [FUNC_TACHO] = "tacho",
- [FUNC_TWI] = "twi",
- [FUNC_TWI_SCL_M] = "twi_scl_m",
- [FUNC_UART] = "uart",
- [FUNC_UART2] = "uart2",
- };
- MSCC_P(0, SG0, NONE, NONE);
- MSCC_P(1, SG0, NONE, NONE);
- MSCC_P(2, SG0, NONE, NONE);
- MSCC_P(3, SG0, NONE, NONE);
- MSCC_P(4, IRQ0_IN, IRQ0_OUT, TWI);
- MSCC_P(5, IRQ1_IN, IRQ1_OUT, PCI_WAKE);
- MSCC_P(6, UART, TWI_SCL_M, NONE);
- MSCC_P(7, UART, TWI_SCL_M, NONE);
- MSCC_P(8, SI, TWI_SCL_M, IRQ0_OUT);
- MSCC_P(9, SI, TWI_SCL_M, IRQ1_OUT);
- MSCC_P(10, PTP2, TWI_SCL_M, SFP0);
- MSCC_P(11, PTP3, TWI_SCL_M, SFP1);
- MSCC_P(12, UART2, TWI_SCL_M, SFP2);
- MSCC_P(13, UART2, TWI_SCL_M, SFP3);
- MSCC_P(14, MIIM1, TWI_SCL_M, SFP4);
- MSCC_P(15, MIIM1, TWI_SCL_M, SFP5);
- MSCC_P(16, TWI, NONE, SI);
- MSCC_P(17, TWI, TWI_SCL_M, SI);
- MSCC_P(18, PTP0, TWI_SCL_M, NONE);
- MSCC_P(19, PTP1, TWI_SCL_M, NONE);
- MSCC_P(20, RECO_CLK0, TACHO, NONE);
- MSCC_P(21, RECO_CLK1, PWM, NONE);
- #define OCELOT_PIN(n) { \
- .name = "GPIO_"#n, \
- .drv_data = &mscc_pin_##n \
- }
- static const struct mscc_pin_data ocelot_pins[] = {
- OCELOT_PIN(0),
- OCELOT_PIN(1),
- OCELOT_PIN(2),
- OCELOT_PIN(3),
- OCELOT_PIN(4),
- OCELOT_PIN(5),
- OCELOT_PIN(6),
- OCELOT_PIN(7),
- OCELOT_PIN(8),
- OCELOT_PIN(9),
- OCELOT_PIN(10),
- OCELOT_PIN(11),
- OCELOT_PIN(12),
- OCELOT_PIN(13),
- OCELOT_PIN(14),
- OCELOT_PIN(15),
- OCELOT_PIN(16),
- OCELOT_PIN(17),
- OCELOT_PIN(18),
- OCELOT_PIN(19),
- OCELOT_PIN(20),
- OCELOT_PIN(21),
- };
- static const unsigned long ocelot_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 ocelot_gpio_probe(struct udevice *dev)
- {
- struct gpio_dev_priv *uc_priv;
- uc_priv = dev_get_uclass_priv(dev);
- uc_priv->bank_name = "ocelot-gpio";
- uc_priv->gpio_count = ARRAY_SIZE(ocelot_pins);
- return 0;
- }
- static struct driver ocelot_gpio_driver = {
- .name = "ocelot-gpio",
- .id = UCLASS_GPIO,
- .probe = ocelot_gpio_probe,
- .ops = &mscc_gpio_ops,
- };
- int ocelot_pinctrl_probe(struct udevice *dev)
- {
- int ret;
- ret = mscc_pinctrl_probe(dev, FUNC_MAX, ocelot_pins,
- ARRAY_SIZE(ocelot_pins),
- ocelot_function_names,
- ocelot_gpios);
- if (ret)
- return ret;
- ret = device_bind(dev, &ocelot_gpio_driver, "ocelot-gpio", NULL,
- dev_of_offset(dev), NULL);
- return ret;
- }
- static const struct udevice_id ocelot_pinctrl_of_match[] = {
- {.compatible = "mscc,ocelot-pinctrl"},
- {},
- };
- U_BOOT_DRIVER(ocelot_pinctrl) = {
- .name = "ocelot-pinctrl",
- .id = UCLASS_PINCTRL,
- .of_match = of_match_ptr(ocelot_pinctrl_of_match),
- .probe = ocelot_pinctrl_probe,
- .priv_auto_alloc_size = sizeof(struct mscc_pinctrl),
- .ops = &mscc_pinctrl_ops,
- };
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