diff options
Diffstat (limited to 'roms/u-boot/drivers/pinctrl/mscc/pinctrl-ocelot.c')
| -rw-r--r-- | roms/u-boot/drivers/pinctrl/mscc/pinctrl-ocelot.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/pinctrl/mscc/pinctrl-ocelot.c b/roms/u-boot/drivers/pinctrl/mscc/pinctrl-ocelot.c new file mode 100644 index 000000000..57e2ef0d7 --- /dev/null +++ b/roms/u-boot/drivers/pinctrl/mscc/pinctrl-ocelot.c @@ -0,0 +1,202 @@ +// 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_ofnode(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 = sizeof(struct mscc_pinctrl), + .ops = &mscc_pinctrl_ops, +}; |