u-boot/drivers/pinctrl/mscc/pinctrl-ocelot.c
Simon Glass 41575d8e4c dm: treewide: Rename auto_alloc_size members to be shorter
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.

Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13 08:00:25 -07:00

202 lines
4.4 KiB
C

// 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,
};