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pinctrl: starfive: Add StarFive JHB100 per2 controller driver

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Add pinctrl driver for StarFive JHB100 SoC Peripheral-2(per2) pinctrl
controller.

Co-developed-by: Lianfeng Ouyang <lianfeng.ouyang@starfivetech.com>
Signed-off-by: Lianfeng Ouyang <lianfeng.ouyang@starfivetech.com>
Signed-off-by: Alex Soo <yuklin.soo@starfivetech.com>
Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
This commit is contained in:
Changhuang Liang 2026-09-10 03:03:51 -07:00 committed by Linus Walleij
parent b598855cc3
commit 260a7f2d17
3 changed files with 148 additions and 0 deletions
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11
drivers/pinctrl/starfive/Kconfig
View File

@ -78,6 +78,17 @@ config PINCTRL_STARFIVE_JHB100_PER1
peripherals supporting inputs, outputs, configuring pull-up/pull-down
and interrupts on input changes.
config PINCTRL_STARFIVE_JHB100_PER2
tristate "StarFive JHB100 SoC Peripheral-2 pinctrl and GPIO driver"
depends on ARCH_STARFIVE || COMPILE_TEST
select PINCTRL_STARFIVE_JHB100
default ARCH_STARFIVE
help
Say yes here to support Peripheral-2 pin control on the StarFive JHB100 SoC.
This also provides an interface to the GPIO pins not used by other
peripherals supporting inputs, outputs, configuring pull-up/pull-down
and interrupts on input changes.
config PINCTRL_STARFIVE_JHB100_SYS0
tristate "StarFive JHB100 SoC System-0 pinctrl and GPIO driver"
depends on ARCH_STARFIVE || COMPILE_TEST

1
drivers/pinctrl/starfive/Makefile
View File

@ -9,6 +9,7 @@ obj-$(CONFIG_PINCTRL_STARFIVE_JH7110_AON) += pinctrl-starfive-jh7110-aon.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100) += pinctrl-starfive-jhb100.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_PER0) += pinctrl-starfive-jhb100-per0.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_PER1) += pinctrl-starfive-jhb100-per1.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_PER2) += pinctrl-starfive-jhb100-per2.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_SYS0) += pinctrl-starfive-jhb100-sys0.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_SYS0H) += pinctrl-starfive-jhb100-sys0h.o
obj-$(CONFIG_PINCTRL_STARFIVE_JHB100_SYS1) += pinctrl-starfive-jhb100-sys1.o

136
drivers/pinctrl/starfive/pinctrl-starfive-jhb100-per2.c Normal file
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@ -0,0 +1,136 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Pinctrl / GPIO driver for StarFive JHB100 SoC Peripheral-2 domain
*
* Copyright (C) 2024 StarFive Technology Co., Ltd.
* Author: Alex Soo <yuklin.soo@starfivetech.com>
*
*/
#include <linux/platform_device.h>
#include "pinctrl-starfive-jhb100.h"
/* per2 pad numbers */
#define PADNUM_PER2_GPIO_D19 19
#define PADNUM_PER2_GPIO_D20 20
#define PADNUM_PER2_GPIO_D21 21
#define PADNUM_PER2_GPIO_D22 22
#define PADNUM_PER2_GPIO_D23 23
#define PADNUM_PER2_GPIO_D24 24
#define PADNUM_PER2_GPIO_D25 25
#define PADNUM_PER2_GPIO_D26 26
#define PADNUM_PER2_GPIO_D27 27
#define PADNUM_PER2_GPIO_D28 28
#define PADNUM_PER2_GPIO_D29 29
#define PADNUM_PER2_GPIO_D30 30
static const struct jhb100_pin_layout_desc jhb100_per2_pl_desc[] = {
{ .pin_start = 0, .pin_cnt = 15, .name = "gpio", .gpio_func_sel = 0 },
{ .pin_start = 15, .pin_cnt = 1, .name = "gpio", .gpio_func_sel = -1 },
{ .pin_start = 16, .pin_cnt = 15, .name = "gpio", .gpio_func_sel = 0 },
{ 0xff },
};
static const struct config_reg_layout_desc jhb100_per2_pinctrl_rl_desc[] = {
{
.pin_start = 0,
.pin_cnt = 19,
.fields[PAD_CFG_DRIVE_STRENGTH_2BIT] = { .shift = 0, .width = 2 },
.fields[PAD_CFG_INPUT_ENABLE] = { .shift = 2, .width = 1 },
.fields[PAD_CFG_PULL_DOWN] = { .shift = 3, .width = 1 },
.fields[PAD_CFG_PULL_UP] = { .shift = 4, .width = 1 },
.fields[PAD_CFG_SLEW_RATE] = { .shift = 5, .width = 1 },
.fields[PAD_CFG_SCHMITT_TRIGGER_SELECT] = { .shift = 6, .width = 1 },
.fields[PAD_CFG_DEBOUNCE_WIDTH] = { .shift = 15, .width = 17 },
},
{
.pin_start = 19,
.pin_cnt = 12,
.fields[PAD_CFG_INPUT_ENABLE] = { .shift = 0, .width = 1 },
.fields[PAD_CFG_SLEW_RATE] = { .shift = 1, .width = 1 },
.fields[PAD_CFG_VSEL] = { .shift = 2, .width = 2 },
.fields[PAD_CFG_DEBOUNCE_WIDTH] = { .shift = 15, .width = 17 },
},
{ 0xff },
};
static const struct pinvref_desc pinvref_desc_per2[] = {
{
/* gpionw */
.pin_grp = {
PADNUM_PER2_GPIO_D19,
PADNUM_PER2_GPIO_D20,
PADNUM_PER2_GPIO_D21,
PADNUM_PER2_GPIO_D22,
PADNUM_PER2_GPIO_D23,
PADNUM_PER2_GPIO_D24,
PADNUM_PER2_GPIO_D25,
PADNUM_PER2_GPIO_D26,
PADNUM_PER2_GPIO_D27,
PADNUM_PER2_GPIO_D28,
PADNUM_PER2_GPIO_D29,
PADNUM_PER2_GPIO_D30
},
.num_pins = 12,
.range = BIT(JHB100_PINVREF_1_8V) | BIT(JHB100_PINVREF_2_5V) |
BIT(JHB100_PINVREF_3_3V)
},
};
static const struct starfive_pinctrl_regs jhb100_per2_pinctrl_regs = {
.vref = { .reg = 0x00, .pv_desc = pinvref_desc_per2,
.num_pv = ARRAY_SIZE(pinvref_desc_per2) },
.func_sel = { .reg = 0x8c, .width_per_pin = 2 },
.config = 0x04,
.output = 0x80,
.output_en = 0x84,
.gpio_status = 0x88,
.irq_en = 0x94,
.irq_status = 0x98,
.irq_clr = 0x9c,
.irq_trigger = 0xa0,
.irq_level = 0xa4,
.irq_both_edge = 0xa8,
.irq_edge = 0xac,
};
static const struct jhb100_pinctrl_func_maps jhb100_func_maps_per2[] = {
{ .func = "fan_tach", .val = 1 },
{ .func = "gmac_rgmii", .val = 1 },
{ .func = "gmac_rmii", .val = 2 },
{ .func = "gpio", .val = 0 },
{ .func = "host0_port80", .val = 2 },
{ .func = "host1_port80", .val = 3 },
};
static const struct jhb100_pinctrl_domain_info jhb100_per2_pinctrl_info = {
.name = "jhb100-per2",
.pl_desc = jhb100_per2_pl_desc,
.crl_desc = jhb100_per2_pinctrl_rl_desc,
.regs = &jhb100_per2_pinctrl_regs,
.fmaps = jhb100_func_maps_per2,
.num_maps = ARRAY_SIZE(jhb100_func_maps_per2),
};
static const struct of_device_id jhb100_per2_pinctrl_of_match[] = {
{
.compatible = "starfive,jhb100-per2-pinctrl",
.data = &jhb100_per2_pinctrl_info,
},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, jhb100_per2_pinctrl_of_match);
static struct platform_driver jhb100_per2_pinctrl_driver = {
.probe = jhb100_pinctrl_probe,
.driver = {
.name = "starfive-jhb100-per2-pinctrl",
.of_match_table = jhb100_per2_pinctrl_of_match,
},
};
module_platform_driver(jhb100_per2_pinctrl_driver);
MODULE_DESCRIPTION("Pinctrl driver for StarFive JHB100 SoC Peripheral-2 domain");
MODULE_AUTHOR("Alex Soo <yuklin.soo@starfivetech.com>");
MODULE_LICENSE("GPL");