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/*
* Exynos7420 pinctrl driver.
* Copyright (C) 2016 Samsung Electronics
* Thomas Abraham <thomas.ab@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <asm/io.h>
#include <dm/pinctrl.h>
#include <dm/root.h>
#include <fdtdec.h>
#include <asm/arch/pinmux.h>
#include "pinctrl-exynos.h"
#define GPD1_OFFSET 0xc0
static struct exynos_pinctrl_config_data serial2_conf[] = {
{
.offset = GPD1_OFFSET + PIN_CON,
.mask = 0x00ff0000,
.value = 0x00220000,
}, {
.offset = GPD1_OFFSET + PIN_PUD,
.mask = 0x00000f00,
.value = 0x00000f00,
},
};
static int exynos7420_pinctrl_request(struct udevice *dev, int peripheral,
int flags)
{
struct exynos_pinctrl_priv *priv = dev_get_priv(dev);
unsigned long base = priv->base;
switch (PERIPH_ID_UART2) {
case PERIPH_ID_UART2:
exynos_pinctrl_setup_peri(serial2_conf,
ARRAY_SIZE(serial2_conf), base);
break;
default:
return -ENODEV;
}
return 0;
}
static struct pinctrl_ops exynos7420_pinctrl_ops = {
.set_state = exynos_pinctrl_set_state,
.request = exynos7420_pinctrl_request,
};
/* pin banks of Exynos7420 pin-controller - BUS0 */
static const struct samsung_pin_bank_data exynos7420_pin_banks0[] = {
EXYNOS_PIN_BANK(5, 0x000, "gpb0"),
EXYNOS_PIN_BANK(8, 0x020, "gpc0"),
EXYNOS_PIN_BANK(2, 0x040, "gpc1"),
EXYNOS_PIN_BANK(6, 0x060, "gpc2"),
EXYNOS_PIN_BANK(8, 0x080, "gpc3"),
EXYNOS_PIN_BANK(4, 0x0a0, "gpd0"),
EXYNOS_PIN_BANK(6, 0x0c0, "gpd1"),
EXYNOS_PIN_BANK(8, 0x0e0, "gpd2"),
EXYNOS_PIN_BANK(5, 0x100, "gpd4"),
EXYNOS_PIN_BANK(4, 0x120, "gpd5"),
EXYNOS_PIN_BANK(6, 0x140, "gpd6"),
EXYNOS_PIN_BANK(3, 0x160, "gpd7"),
EXYNOS_PIN_BANK(2, 0x180, "gpd8"),
EXYNOS_PIN_BANK(2, 0x1a0, "gpg0"),
EXYNOS_PIN_BANK(4, 0x1c0, "gpg3"),
};
/* pin banks of Exynos7420 pin-controller - FSYS0 */
static const struct samsung_pin_bank_data exynos7420_pin_banks1[] = {
EXYNOS_PIN_BANK(7, 0x000, "gpr4"),
};
/* pin banks of Exynos7420 pin-controller - FSYS1 */
static const struct samsung_pin_bank_data exynos7420_pin_banks2[] = {
EXYNOS_PIN_BANK(4, 0x000, "gpr0"),
EXYNOS_PIN_BANK(8, 0x020, "gpr1"),
EXYNOS_PIN_BANK(5, 0x040, "gpr2"),
EXYNOS_PIN_BANK(8, 0x060, "gpr3"),
};
const struct samsung_pin_ctrl exynos7420_pin_ctrl[] = {
{
/* pin-controller instance BUS0 data */
.pin_banks = exynos7420_pin_banks0,
.nr_banks = ARRAY_SIZE(exynos7420_pin_banks0),
}, {
/* pin-controller instance FSYS0 data */
.pin_banks = exynos7420_pin_banks1,
.nr_banks = ARRAY_SIZE(exynos7420_pin_banks1),
}, {
/* pin-controller instance FSYS1 data */
.pin_banks = exynos7420_pin_banks2,
.nr_banks = ARRAY_SIZE(exynos7420_pin_banks2),
},
};
static const struct udevice_id exynos7420_pinctrl_ids[] = {
{ .compatible = "samsung,exynos7420-pinctrl",
.data = (ulong)exynos7420_pin_ctrl },
{ }
};
U_BOOT_DRIVER(pinctrl_exynos7420) = {
.name = "pinctrl_exynos7420",
.id = UCLASS_PINCTRL,
.of_match = exynos7420_pinctrl_ids,
.priv_auto_alloc_size = sizeof(struct exynos_pinctrl_priv),
.ops = &exynos7420_pinctrl_ops,
.probe = exynos_pinctrl_probe,
.flags = DM_FLAG_PRE_RELOC
};
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