diff options
Diffstat (limited to 'drivers/pinctrl/mscc/pinctrl-luton.c')
| -rw-r--r-- | drivers/pinctrl/mscc/pinctrl-luton.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/drivers/pinctrl/mscc/pinctrl-luton.c b/drivers/pinctrl/mscc/pinctrl-luton.c new file mode 100644 index 0000000000..7166588e3c --- /dev/null +++ b/drivers/pinctrl/mscc/pinctrl-luton.c @@ -0,0 +1,172 @@ +// 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 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); + + 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, +}; |