[PATCH v1 26/30] pinctrl: starfive: Add StarFive JH7110 driver

Hal Feng
2022-09-30T07:46:06Z

From: Jianlong Huang <jianlong.huang@starfivetech.com>

Add pinctrl driver for StarFive JH7110 SoC.

Signed-off-by: Jianlong Huang <jianlong.huang@starfivetech.com>
Signed-off-by: Hal Feng <hal.feng@linux.starfivetech.com>
---
MAINTAINERS | 9 +-
drivers/pinctrl/starfive/Kconfig | 20 +
drivers/pinctrl/starfive/Makefile | 5 +
drivers/pinctrl/starfive/pinctrl-jh7110-aon.c | 718 ++++++++++++++
drivers/pinctrl/starfive/pinctrl-jh7110-sys.c | 925 ++++++++++++++++++
drivers/pinctrl/starfive/pinctrl-starfive.c | 539 ++++++++++
drivers/pinctrl/starfive/pinctrl-starfive.h | 131 +++
7 files changed, 2343 insertions(+), 4 deletions(-)
create mode 100644 drivers/pinctrl/starfive/pinctrl-jh7110-aon.c
create mode 100644 drivers/pinctrl/starfive/pinctrl-jh7110-sys.c
create mode 100644 drivers/pinctrl/starfive/pinctrl-starfive.c
create mode 100644 drivers/pinctrl/starfive/pinctrl-starfive.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 70d64d2afb0c..6847dee99603 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19404,13 +19404,14 @@ F: Documentation/devicetree/bindings/clock/starfive*
F: drivers/clk/starfive/
F: include/dt-bindings/clock/starfive*

-STARFIVE JH7100 PINCTRL DRIVER
+STARFIVE PINCTRL DRIVER
M: Emil Renner Berthing <kernel@esmil.dk>
+M: Jianlong Huang <jianlong.huang@starfivetech.com>
L: linux-gpio@vger.kernel.org
S: Maintained
-F: Documentation/devicetree/bindings/pinctrl/starfive,jh7100-pinctrl.yaml
-F: drivers/pinctrl/pinctrl-starfive.c
-F: include/dt-bindings/pinctrl/pinctrl-starfive.h
+F: Documentation/devicetree/bindings/pinctrl/starfive*
+F: drivers/pinctrl/starfive/
+F: include/dt-bindings/pinctrl/pinctrl-starfive*

STARFIVE RESET CONTROLLER DRIVER
M: Emil Renner Berthing <kernel@esmil.dk>
diff --git a/drivers/pinctrl/starfive/Kconfig b/drivers/pinctrl/starfive/Kconfig
index 5cedb546f93d..fde39f4a7922 100644
--- a/drivers/pinctrl/starfive/Kconfig
+++ b/drivers/pinctrl/starfive/Kconfig
@@ -17,3 +17,23 @@ config PINCTRL_STARFIVE_JH7100
peripherals supporting inputs, outputs, configuring pull-up/pull-down
and interrupts on input changes.

+config PINCTRL_STARFIVE
+ bool
+ select GENERIC_PINCTRL_GROUPS
+ select GENERIC_PINMUX_FUNCTIONS
+ select GENERIC_PINCONF
+ select GPIOLIB
+ select GPIOLIB_IRQCHIP
+ select OF_GPIO
+
+config PINCTRL_STARFIVE_JH7110
+ bool "Pinctrl and GPIO driver for the StarFive JH7110 SoC"
+ depends on SOC_STARFIVE || COMPILE_TEST
+ depends on OF
+ select PINCTRL_STARFIVE
+ default SOC_STARFIVE
+ help
+ Say yes here to support pin control on the StarFive JH7110 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.
diff --git a/drivers/pinctrl/starfive/Makefile b/drivers/pinctrl/starfive/Makefile
index 0293f26a0a99..17cdd1b0e650 100644
--- a/drivers/pinctrl/starfive/Makefile
+++ b/drivers/pinctrl/starfive/Makefile
@@ -1,3 +1,8 @@
# SPDX-License-Identifier: GPL-2.0

+# Core
+obj-$(CONFIG_PINCTRL_STARFIVE) += pinctrl-starfive.o
+
+# SoC Drivers
obj-$(CONFIG_PINCTRL_STARFIVE_JH7100) += pinctrl-starfive-jh7100.o
+obj-$(CONFIG_PINCTRL_STARFIVE_JH7110) += pinctrl-jh7110-sys.o pinctrl-jh7110-aon.o
diff --git a/drivers/pinctrl/starfive/pinctrl-jh7110-aon.c b/drivers/pinctrl/starfive/pinctrl-jh7110-aon.c
new file mode 100644
index 000000000000..058acd3ff305
--- /dev/null
+++ b/drivers/pinctrl/starfive/pinctrl-jh7110-aon.c
@@ -0,0 +1,718 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Pinctrl / GPIO driver for StarFive JH7110 SoC aon controller
+ *
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ */
+
+#include <linux/err.h>
+#include <linux/gpio/driver.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#include "../core.h"
+#include "../pinconf.h"
+#include "../pinmux.h"
+#include "pinctrl-starfive.h"
+
+/* aon_iomux */
+#define AON_GPO_DOEN_CFG 0x0
+#define AON_GPO_DOEN_MASK GENMASK(2, 0)
+#define AON_GPO_DOUT_CFG 0x4
+#define AON_GPO_DOUT_MASK GENMASK(3, 0)
+#define AON_GPI_DIN_CFG 0x8
+#define AON_GPI_DIN_MASK GENMASK(3, 0)
+#define AON_GPIO_DIN_REG 0x2c
+
+/* aon_iomux GPIO CTRL */
+#define AON_GPIO_EN_REG 0xc
+#define AON_GPIO_IS_REG 0x10
+#define AON_GPIO_IC_REG 0x14
+#define AON_GPIO_IBE_REG 0x18
+#define AON_GPIO_IEV_REG 0x1c
+#define AON_GPIO_IE_REG 0x20
+#define AON_GPIO_MIS_REG 0x28
+
+/* aon_iomux PIN ioconfig reg */
+#define AON_GPO_PDA_0_5_CFG 0x30
+#define PADCFG_PAD_GMAC_SYSCON_SHIFT 0x0
+#define PADCFG_PAD_GMAC_SYSCON_MASK GENMASK(1, 0)
+#define A0N_GPO_PDA_CFG_OFFSET 0x4
+#define AON_GPIO_INPUT_ENABLE_REG 0x34
+
+#define AON_GPIO_NUM 4
+
+enum starfive_jh7110_aon_pads {
+ PAD_TESTEN = 0,
+ PAD_RGPIO0 = 1,
+ PAD_RGPIO1 = 2,
+ PAD_RGPIO2 = 3,
+ PAD_RGPIO3 = 4,
+ PAD_RSTN = 5,
+ PAD_GMAC0_MDC = 6,
+ PAD_GMAC0_MDIO = 7,
+ PAD_GMAC0_RXD0 = 8,
+ PAD_GMAC0_RXD1 = 9,
+ PAD_GMAC0_RXD2 = 10,
+ PAD_GMAC0_RXD3 = 11,
+ PAD_GMAC0_RXDV = 12,
+ PAD_GMAC0_RXC = 13,
+ PAD_GMAC0_TXD0 = 14,
+ PAD_GMAC0_TXD1 = 15,
+ PAD_GMAC0_TXD2 = 16,
+ PAD_GMAC0_TXD3 = 17,
+ PAD_GMAC0_TXEN = 18,
+ PAD_GMAC0_TXC = 19,
+};
+
+static const struct pinctrl_pin_desc starfive_jh7110_aon_pinctrl_pads[] = {
+ STARFIVE_PINCTRL_PIN(PAD_TESTEN),
+ STARFIVE_PINCTRL_PIN(PAD_RGPIO0),
+ STARFIVE_PINCTRL_PIN(PAD_RGPIO1),
+ STARFIVE_PINCTRL_PIN(PAD_RGPIO2),
+ STARFIVE_PINCTRL_PIN(PAD_RGPIO3),
+ STARFIVE_PINCTRL_PIN(PAD_RSTN),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_MDC),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_MDIO),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_RXD0),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_RXD1),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_RXD2),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_RXD3),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_RXDV),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_RXC),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_TXD0),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_TXD1),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_TXD2),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_TXD3),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_TXEN),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC0_TXC),
+};
+
+static int jh7110_aon_pmx_set_one_pin_mux(struct starfive_pinctrl *pctl,
+ struct starfive_pin *pin)
+{
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+ struct starfive_pin_config *pin_config = &pin->pin_config;
+ const struct starfive_pin_reg *pin_reg;
+ unsigned int gpio, pin_id;
+ int i;
+ unsigned long flags;
+ int n, shift;
+
+ gpio = pin->pin_config.gpio_num;
+ pin_id = pin->pin;
+ pin_reg = &pctl->pin_regs[pin_id];
+
+ raw_spin_lock_irqsave(&pctl->lock, flags);
+ if (pin_reg->func_sel_reg != -1) {
+ pinctrl_set_reg(pctl->padctl_base + pin_reg->func_sel_reg,
+ pin_config->pinmux_func,
+ pin_reg->func_sel_shift,
+ pin_reg->func_sel_mask);
+ }
+
+ shift = GET_GPO_CFG_SHIFT(gpio);
+ if (pin_reg->gpo_dout_reg != -1) {
+ pinctrl_write_reg(pctl->padctl_base + pin_reg->gpo_dout_reg,
+ AON_GPO_DOUT_MASK << shift,
+ pin_config->gpio_dout << shift);
+ }
+
+ if (pin_reg->gpo_doen_reg != -1) {
+ pinctrl_write_reg(pctl->padctl_base + pin_reg->gpo_doen_reg,
+ AON_GPO_DOEN_MASK << shift,
+ pin_config->gpio_doen << shift);
+ }
+
+ for (i = 0; i < pin_config->gpio_din_num; i++) {
+ n = pin_config->gpio_din_reg[i] >> 2;
+ shift = (pin_config->gpio_din_reg[i] & 3) << 3;
+ pinctrl_write_reg(pctl->padctl_base + info->din_reg_base + n * 4,
+ AON_GPI_DIN_MASK << shift,
+ (gpio + 2) << shift);
+ }
+
+ if (pin_reg->syscon_reg != -1) {
+ pinctrl_set_reg(pctl->padctl_base + pin_reg->syscon_reg,
+ pin_config->syscon,
+ PADCFG_PAD_GMAC_SYSCON_SHIFT,
+ PADCFG_PAD_GMAC_SYSCON_MASK);
+ }
+
+ raw_spin_unlock_irqrestore(&pctl->lock, flags);
+
+ return 0;
+}
+
+static void jh7110_aon_parse_pin_config(struct starfive_pinctrl *pctl,
+ unsigned int *pins_id,
+ struct starfive_pin *pin_data,
+ const __be32 *list_p,
+ struct device_node *np)
+{
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+ struct starfive_pin_reg *pin_reg;
+ const __be32 *list = list_p;
+ const __be32 *list_din;
+ int size;
+ int size_din;
+ int pin_size;
+ u32 value;
+ int i;
+
+ pin_size = sizeof(u32);
+ *pins_id = be32_to_cpu(*list);
+ pin_reg = &pctl->pin_regs[*pins_id];
+ pin_data->pin = *pins_id;
+
+ if (pin_data->pin > PAD_GMAC0_TXC) {
+ dev_err(pctl->dev, "err pin num = %d\n", pin_data->pin);
+ return;
+ }
+
+ if (pin_data->pin < PAD_GMAC0_MDC) {
+ pin_reg->io_conf_reg = (pin_data->pin * A0N_GPO_PDA_CFG_OFFSET) +
+ AON_GPO_PDA_0_5_CFG;
+ }
+
+ if (!of_property_read_u32(np, "starfive,pin-ioconfig", &value))
+ pin_data->pin_config.io_config = value;
+
+ list = of_get_property(np, "starfive,pinmux", &size);
+ if (list) {
+ pin_reg->func_sel_reg = be32_to_cpu(*list++);
+ pin_reg->func_sel_shift = be32_to_cpu(*list++);
+ pin_reg->func_sel_mask = be32_to_cpu(*list++);
+ pin_data->pin_config.pinmux_func = be32_to_cpu(*list++);
+ }
+
+ list = of_get_property(np, "starfive,pin-syscon", &size);
+ if (list) {
+ pin_reg->syscon_reg = be32_to_cpu(*list++);
+ pin_data->pin_config.syscon = be32_to_cpu(*list++);
+ }
+
+ if (pin_data->pin >= PAD_RGPIO0 && pin_data->pin <= PAD_RGPIO3) {
+ pin_data->pin_config.gpio_num = pin_data->pin - 1;
+ pin_reg->gpo_dout_reg = info->dout_reg_base;
+ pin_reg->gpo_doen_reg = info->doen_reg_base;
+
+ if (!of_property_read_u32(np, "starfive,pin-gpio-dout", &value))
+ pin_data->pin_config.gpio_dout = value;
+
+ if (!of_property_read_u32(np, "starfive,pin-gpio-doen", &value))
+ pin_data->pin_config.gpio_doen = value;
+
+ list_din = of_get_property(np, "starfive,pin-gpio-din", &size_din);
+ if (list_din) {
+ if (!size_din || size_din % pin_size) {
+ dev_err(pctl->dev,
+ "Invalid starfive,pin-gpio-din property in node\n");
+ return;
+ }
+ pin_data->pin_config.gpio_din_num = size_din / pin_size;
+ pin_data->pin_config.gpio_din_reg =
+ devm_kcalloc(pctl->dev,
+ pin_data->pin_config.gpio_din_num,
+ sizeof(s32),
+ GFP_KERNEL);
+ for (i = 0; i < pin_data->pin_config.gpio_din_num; i++) {
+ value = be32_to_cpu(*list_din++);
+ pin_data->pin_config.gpio_din_reg[i] = value;
+ }
+ }
+ }
+}
+
+static int jh7110_aon_direction_input(struct gpio_chip *gc,
+ unsigned int gpio)
+{
+ struct starfive_pinctrl *chip = gpiochip_get_data(gc);
+ unsigned long flags;
+ unsigned int shift;
+ void __iomem *reg_doen;
+ u32 mask;
+
+ if (gpio < 0 || gpio >= gc->ngpio)
+ return -EINVAL;
+
+ shift = GET_GPO_CFG_SHIFT(gpio);
+ mask = AON_GPO_DOEN_MASK << shift;
+ reg_doen = chip->padctl_base + AON_GPO_DOEN_CFG;
+
+ raw_spin_lock_irqsave(&chip->lock, flags);
+ pinctrl_set_reg(reg_doen, 1, shift, mask);
+ raw_spin_unlock_irqrestore(&chip->lock, flags);
+
+ return 0;
+}
+
+static int jh7110_aon_direction_output(struct gpio_chip *gc,
+ unsigned int gpio,
+ int value)
+{
+ struct starfive_pinctrl *chip = gpiochip_get_data(gc);
+ unsigned long flags;
+ unsigned int shift;
+ void __iomem *reg_doen, *reg_dout;
+ u32 mask_doen, mask_dout;
+
+ if (gpio < 0 || gpio >= gc->ngpio)
+ return -EINVAL;
+
+ shift = GET_GPO_CFG_SHIFT(gpio);
+ mask_doen = AON_GPO_DOEN_MASK << shift;
+ mask_dout = AON_GPO_DOUT_MASK << shift;
+ reg_doen = chip->padctl_base + AON_GPO_DOEN_CFG;
+ reg_dout = chip->padctl_base + AON_GPO_DOUT_CFG;
+
+ raw_spin_lock_irqsave(&chip->lock, flags);
+ pinctrl_set_reg(reg_doen, 0, shift, mask_doen);
+
+ pinctrl_set_reg(reg_dout, value, shift, mask_dout);
+ raw_spin_unlock_irqrestore(&chip->lock, flags);
+
+ return 0;
+}
+
+static int jh7110_aon_get_direction(struct gpio_chip *gc,
+ unsigned int gpio)
+{
+ struct starfive_pinctrl *chip = gpiochip_get_data(gc);
+ unsigned long flags;
+ unsigned int doen;
+ unsigned int shift;
+ void __iomem *reg_doen;
+ u32 mask;
+
+ if (gpio < 0 || gpio >= gc->ngpio)
+ return -EINVAL;
+
+ shift = GET_GPO_CFG_SHIFT(gpio);
+ mask = AON_GPO_DOEN_MASK << shift;
+ reg_doen = chip->padctl_base + AON_GPO_DOEN_CFG;
+
+ raw_spin_lock_irqsave(&chip->lock, flags);
+ doen = readl_relaxed(reg_doen);
+ raw_spin_unlock_irqrestore(&chip->lock, flags);
+
+ return !!(doen & mask);
+}
+
+static int jh7110_aon_get_value(struct gpio_chip *gc,
+ unsigned int gpio)
+{
+ struct starfive_pinctrl *chip = gpiochip_get_data(gc);
+ unsigned long flags;
+ int value;
+
+ if (gpio < 0 || gpio >= gc->ngpio)
+ return -EINVAL;
+
+ raw_spin_lock_irqsave(&chip->lock, flags);
+ value = readl_relaxed(chip->padctl_base + AON_GPIO_DIN_REG);
+ raw_spin_unlock_irqrestore(&chip->lock, flags);
+
+ return (value >> gpio) & 0x1;
+}
+
+static void jh7110_aon_set_value(struct gpio_chip *gc,
+ unsigned int gpio, int value)
+{
+ struct starfive_pinctrl *chip = gpiochip_get_data(gc);
+ unsigned long flags;
+ unsigned int shift;
+ void __iomem *reg_dout;
+ u32 mask;
+
+ if (gpio < 0 || gpio >= gc->ngpio)
+ return;
+
+ shift = GET_GPO_CFG_SHIFT(gpio);
+ mask = AON_GPO_DOUT_MASK << shift;
+ reg_dout = chip->padctl_base + AON_GPO_DOUT_CFG;
+
+ raw_spin_lock_irqsave(&chip->lock, flags);
+ pinctrl_set_reg(reg_dout, value, shift, mask);
+ raw_spin_unlock_irqrestore(&chip->lock, flags);
+}
+
+static void jh7110_aon_irq_handler(struct irq_desc *desc)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_desc(desc);
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ unsigned long mis;
+ unsigned int pin;
+
+ chained_irq_enter(chip, desc);
+
+ mis = readl_relaxed(sfp->padctl_base + AON_GPIO_MIS_REG);
+ for_each_set_bit(pin, &mis, AON_GPIO_NUM)
+ generic_handle_domain_irq(sfp->gc.irq.domain, pin);
+
+ chained_irq_exit(chip, desc);
+}
+
+static int jh7110_aon_init_hw(struct gpio_chip *gc)
+{
+ struct starfive_pinctrl *sfp = container_of(gc,
+ struct starfive_pinctrl, gc);
+
+ /* mask all GPIO interrupts */
+ writel_relaxed(0, sfp->padctl_base + AON_GPIO_IE_REG);
+ /* clear edge interrupt flags */
+ writel_relaxed(0, sfp->padctl_base + AON_GPIO_IC_REG);
+ writel_relaxed(0x0f, sfp->padctl_base + AON_GPIO_IC_REG);
+ /* enable GPIO interrupts */
+ writel_relaxed(1, sfp->padctl_base + AON_GPIO_EN_REG);
+ return 0;
+}
+
+static int jh7110_aon_irq_set_type(struct irq_data *d,
+ unsigned int trigger)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_data(d);
+ irq_hw_number_t gpio = irqd_to_hwirq(d);
+ void __iomem *base = sfp->padctl_base;
+ u32 mask = BIT(gpio);
+ u32 irq_type, edge_both, polarity;
+ unsigned long flags;
+
+ switch (trigger) {
+ case IRQ_TYPE_LEVEL_HIGH:
+ irq_type = 0; /* 0: level triggered */
+ edge_both = 0; /* 0: ignored */
+ polarity = 0; /* 0: high level */
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ irq_type = 0; /* 0: level triggered */
+ edge_both = 0; /* 0: ignored */
+ polarity = 1; /* 1: low level */
+ break;
+ case IRQ_TYPE_EDGE_BOTH:
+ irq_type = mask; /* 1: edge triggered */
+ edge_both = mask; /* 1: both edges */
+ polarity = 0; /* 0: ignored */
+ break;
+ case IRQ_TYPE_EDGE_RISING:
+ irq_type = mask; /* 1: edge triggered */
+ edge_both = 0; /* 0: single edge */
+ polarity = mask; /* 1: rising edge */
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ irq_type = mask; /* 1: edge triggered */
+ edge_both = 0; /* 0: single edge */
+ polarity = 0; /* 0: falling edge */
+ break;
+ }
+ if (trigger & IRQ_TYPE_EDGE_BOTH)
+ irq_set_handler_locked(d, handle_edge_irq);
+ else
+ irq_set_handler_locked(d, handle_level_irq);
+
+ raw_spin_lock_irqsave(&sfp->lock, flags);
+ irq_type |= readl_relaxed(base + AON_GPIO_IS_REG) & ~mask;
+ writel_relaxed(irq_type, base + AON_GPIO_IS_REG);
+
+ edge_both |= readl_relaxed(base + AON_GPIO_IBE_REG) & ~mask;
+ writel_relaxed(edge_both, base + AON_GPIO_IBE_REG);
+
+ polarity |= readl_relaxed(base + AON_GPIO_IEV_REG) & ~mask;
+ writel_relaxed(polarity, base + AON_GPIO_IEV_REG);
+ raw_spin_unlock_irqrestore(&sfp->lock, flags);
+
+ sfp->trigger[gpio] = trigger;
+ return 0;
+}
+
+static void jh7110_aon_irq_mask(struct irq_data *d)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_data(d);
+ irq_hw_number_t gpio = irqd_to_hwirq(d);
+ void __iomem *ie = sfp->padctl_base + AON_GPIO_IE_REG;
+ u32 mask = BIT(gpio);
+ unsigned long flags;
+ u32 value;
+
+ if (gpio < 0 || gpio >= sfp->gc.ngpio)
+ return;
+
+ raw_spin_lock_irqsave(&sfp->lock, flags);
+ value = readl_relaxed(ie) & ~mask;
+ writel_relaxed(value, ie);
+ raw_spin_unlock_irqrestore(&sfp->lock, flags);
+}
+
+static void jh7110_aon_irq_unmask(struct irq_data *d)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_data(d);
+ irq_hw_number_t gpio = irqd_to_hwirq(d);
+ void __iomem *ie = sfp->padctl_base + AON_GPIO_IE_REG;
+ u32 mask = BIT(gpio);
+ unsigned long flags;
+ u32 value;
+
+ if (gpio < 0 || gpio >= sfp->gc.ngpio)
+ return;
+
+ raw_spin_lock_irqsave(&sfp->lock, flags);
+ value = readl_relaxed(ie) | mask;
+ writel_relaxed(value, ie);
+ raw_spin_unlock_irqrestore(&sfp->lock, flags);
+}
+
+static void jh7110_aon_irq_ack(struct irq_data *d)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_data(d);
+ irq_hw_number_t gpio = irqd_to_hwirq(d);
+ void __iomem *ic = sfp->padctl_base + AON_GPIO_IC_REG;
+ u32 mask = BIT(gpio);
+ unsigned long flags;
+ u32 value;
+
+ if (gpio < 0 || gpio >= sfp->gc.ngpio)
+ return;
+
+ raw_spin_lock_irqsave(&sfp->lock, flags);
+ value = readl_relaxed(ic) & ~mask;
+ writel_relaxed(value, ic);
+ writel_relaxed(value | mask, ic);
+ raw_spin_unlock_irqrestore(&sfp->lock, flags);
+}
+
+static void jh7110_aon_irq_mask_ack(struct irq_data *d)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_data(d);
+ irq_hw_number_t gpio = irqd_to_hwirq(d);
+ void __iomem *ie = sfp->padctl_base + AON_GPIO_IE_REG;
+ void __iomem *ic = sfp->padctl_base + AON_GPIO_IC_REG;
+ u32 mask = BIT(gpio);
+ unsigned long flags;
+ u32 value;
+
+ if (gpio < 0 || gpio >= sfp->gc.ngpio)
+ return;
+
+ raw_spin_lock_irqsave(&sfp->lock, flags);
+ value = readl_relaxed(ie) & ~mask;
+ writel_relaxed(value, ie);
+
+ value = readl_relaxed(ic) & ~mask;
+ writel_relaxed(value, ic);
+ writel_relaxed(value | mask, ic);
+ raw_spin_unlock_irqrestore(&sfp->lock, flags);
+}
+
+static struct irq_chip jh7110_aon_irqchip = {
+ .name = "starfive-jh7110-aon-gpio",
+ .irq_ack = jh7110_aon_irq_ack,
+ .irq_mask_ack = jh7110_aon_irq_mask_ack,
+ .irq_set_type = jh7110_aon_irq_set_type,
+ .irq_mask = jh7110_aon_irq_mask,
+ .irq_unmask = jh7110_aon_irq_unmask,
+ .flags = IRQCHIP_IMMUTABLE | IRQCHIP_SET_TYPE_MASKED,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
+static int jh7110_aon_add_pin_ranges(struct gpio_chip *gc)
+{
+ struct starfive_pinctrl *sfp = container_of(gc,
+ struct starfive_pinctrl, gc);
+
+ sfp->gpios.name = sfp->gc.label;
+ sfp->gpios.base = sfp->gc.base;
+ /*
+ * sfp->gpios.pin_base depends on the chosen signal group
+ * and is set in starfive_probe()
+ */
+ sfp->gpios.npins = AON_GPIO_NUM;
+ sfp->gpios.gc = &sfp->gc;
+ pinctrl_add_gpio_range(sfp->pctl_dev, &sfp->gpios);
+ return 0;
+}
+
+static int jh7110_aon_gpio_register(struct platform_device *pdev,
+ struct starfive_pinctrl *pctl)
+{
+ struct device *dev = &pdev->dev;
+ int ret, ngpio;
+ int loop;
+
+ ngpio = AON_GPIO_NUM;
+
+ pctl->gc.direction_input = jh7110_aon_direction_input;
+ pctl->gc.direction_output = jh7110_aon_direction_output;
+ pctl->gc.get_direction = jh7110_aon_get_direction;
+ pctl->gc.get = jh7110_aon_get_value;
+ pctl->gc.set = jh7110_aon_set_value;
+ pctl->gc.add_pin_ranges = jh7110_aon_add_pin_ranges;
+ pctl->gc.base = MAX_GPIO;
+ pctl->gc.ngpio = ngpio;
+ pctl->gc.label = dev_name(dev);
+ pctl->gc.parent = dev;
+ pctl->gc.owner = THIS_MODULE;
+
+ pctl->enabled = 0;
+
+ platform_set_drvdata(pdev, pctl);
+
+ jh7110_aon_irqchip.name = pctl->gc.label;
+
+ pctl->gc.irq.chip = &jh7110_aon_irqchip;
+ pctl->gc.irq.parent_handler = jh7110_aon_irq_handler;
+ pctl->gc.irq.num_parents = 1;
+ pctl->gc.irq.parents =
+ devm_kcalloc(dev, pctl->gc.irq.num_parents,
+ sizeof(*pctl->gc.irq.parents), GFP_KERNEL);
+ if (!pctl->gc.irq.parents)
+ return -ENOMEM;
+ pctl->gc.irq.default_type = IRQ_TYPE_NONE;
+ pctl->gc.irq.handler = handle_bad_irq;
+ pctl->gc.irq.init_hw = jh7110_aon_init_hw;
+
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0)
+ return ret;
+ pctl->gc.irq.parents[0] = ret;
+
+ ret = devm_gpiochip_add_data(dev, &pctl->gc, pctl);
+ if (ret)
+ return dev_err_probe(dev, ret, "could not register gpiochip\n");
+
+ for (loop = 0; loop < ngpio; loop++) {
+ unsigned int v;
+ void __iomem *ie_reg = pctl->padctl_base +
+ AON_GPIO_INPUT_ENABLE_REG + (loop << 2);
+
+ v = readl_relaxed(ie_reg);
+ v |= 0x1;
+ writel_relaxed(v, ie_reg);
+ }
+
+ dev_info(dev, "StarFive AON GPIO chip registered %d GPIOs\n", ngpio);
+
+ return 0;
+}
+
+static int jh7110_aon_pinconf_get(struct pinctrl_dev *pctldev,
+ unsigned int pin_id,
+ unsigned long *config)
+{
+ struct starfive_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+ const struct starfive_pin_reg *pin_reg = &pctl->pin_regs[pin_id];
+ unsigned long flags;
+ u32 value;
+
+ if (pin_reg->io_conf_reg == -1) {
+ dev_err(pctl->dev,
+ "Pin(%s) does not support config function\n",
+ info->pins[pin_id].name);
+ return -EINVAL;
+ }
+
+ raw_spin_lock_irqsave(&pctl->lock, flags);
+ value = readl_relaxed(pctl->padctl_base + pin_reg->io_conf_reg);
+ *config = value & 0xff;
+ raw_spin_unlock_irqrestore(&pctl->lock, flags);
+
+ return 0;
+}
+
+static int jh7110_aon_pinconf_set(struct pinctrl_dev *pctldev,
+ unsigned int pin_id,
+ unsigned long *configs,
+ unsigned int num_configs)
+{
+ struct starfive_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+ const struct starfive_pin_reg *pin_reg = &pctl->pin_regs[pin_id];
+ int i;
+ u32 value;
+ unsigned long flags;
+
+ if (pin_reg->io_conf_reg == -1) {
+ dev_err(pctl->dev,
+ "Pin(%s) does not support config function\n",
+ info->pins[pin_id].name);
+ return -EINVAL;
+ }
+
+ raw_spin_lock_irqsave(&pctl->lock, flags);
+ for (i = 0; i < num_configs; i++) {
+ value = readl_relaxed(pctl->padctl_base +
+ pin_reg->io_conf_reg);
+ value = value | (configs[i] & 0xFF);
+ writel_relaxed(value, pctl->padctl_base +
+ pin_reg->io_conf_reg);
+ }
+ raw_spin_unlock_irqrestore(&pctl->lock, flags);
+
+ return 0;
+}
+
+static const struct starfive_pinctrl_soc_info jh7110_aon_pinctrl_info = {
+ .pins = starfive_jh7110_aon_pinctrl_pads,
+ .npins = ARRAY_SIZE(starfive_jh7110_aon_pinctrl_pads),
+ .flags = 1,
+ .dout_reg_base = AON_GPO_DOUT_CFG,
+ .doen_reg_base = AON_GPO_DOEN_CFG,
+ .din_reg_base = AON_GPI_DIN_CFG,
+ .starfive_pinconf_get = jh7110_aon_pinconf_get,
+ .starfive_pinconf_set = jh7110_aon_pinconf_set,
+ .starfive_pmx_set_one_pin_mux = jh7110_aon_pmx_set_one_pin_mux,
+ .starfive_gpio_register = jh7110_aon_gpio_register,
+ .starfive_pinctrl_parse_pin = jh7110_aon_parse_pin_config,
+};
+
+static const struct of_device_id jh7110_aon_pinctrl_of_match[] = {
+ {
+ .compatible = "starfive,jh7110-aon-pinctrl",
+ .data = &jh7110_aon_pinctrl_info,
+ },
+ { /* sentinel */ }
+};
+
+static int jh7110_aon_pinctrl_probe(struct platform_device *pdev)
+{
+ const struct starfive_pinctrl_soc_info *pinctrl_info;
+
+ pinctrl_info = of_device_get_match_data(&pdev->dev);
+ if (!pinctrl_info)
+ return -ENODEV;
+
+ return starfive_pinctrl_probe(pdev, pinctrl_info);
+}
+
+static struct platform_driver jh7110_aon_pinctrl_driver = {
+ .driver = {
+ .name = "starfive-jh7110-aon-pinctrl",
+ .of_match_table = of_match_ptr(jh7110_aon_pinctrl_of_match),
+ },
+ .probe = jh7110_aon_pinctrl_probe,
+};
+
+static int __init jh7110_aon_pinctrl_init(void)
+{
+ return platform_driver_register(&jh7110_aon_pinctrl_driver);
+}
+arch_initcall(jh7110_aon_pinctrl_init);
+
+MODULE_DESCRIPTION("Pinctrl driver for StarFive JH7110 SoC aon controller");
+MODULE_AUTHOR("Jenny Zhang <jenny.zhang@starfivetech.com>");
+MODULE_AUTHOR("Jianlong Huang <jianlong.huang@starfivetech.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/starfive/pinctrl-jh7110-sys.c b/drivers/pinctrl/starfive/pinctrl-jh7110-sys.c
new file mode 100644
index 000000000000..882d45c63497
--- /dev/null
+++ b/drivers/pinctrl/starfive/pinctrl-jh7110-sys.c
@@ -0,0 +1,925 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Pinctrl / GPIO driver for StarFive JH7110 SoC sys controller
+ *
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ */
+
+#include <linux/err.h>
+#include <linux/gpio/driver.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#include "../core.h"
+#include "../pinconf.h"
+#include "../pinmux.h"
+#include "pinctrl-starfive.h"
+
+#define SYS_GPO_DOEN_CFG 0x0
+#define SYS_GPO_DOEN_MASK GENMASK(5, 0)
+#define SYS_GPO_DOUT_CFG 0x40
+#define SYS_GPO_DOUT_MASK GENMASK(6, 0)
+#define SYS_GPI_DIN_CFG 0x80
+#define SYS_GPI_DIN_MASK GENMASK(6, 0)
+#define SYS_GPIO_INPUT_ENABLE_REG 0x120
+
+/* sys_iomux PIN 0-74 ioconfig reg */
+#define SYS_GPO_PDA_0_74_CFG 0x120
+/* sys_iomux PIN 89-94 ioconfig reg */
+#define SYS_GPO_PDA_89_94_CFG 0x284
+#define SYS_GPO_PDA_CFG_OFFSET 0x4
+
+/* sys_iomux GPIO CTRL */
+#define GPIO_EN 0xdc
+#define GPIO_IS_LOW 0xe0
+#define GPIO_IS_HIGH 0xe4
+#define GPIO_IC_LOW 0xe8
+#define GPIO_IC_HIGH 0xec
+#define GPIO_IBE_LOW 0xf0
+#define GPIO_IBE_HIGH 0xf4
+#define GPIO_IEV_LOW 0xf8
+#define GPIO_IEV_HIGH 0xfc
+#define GPIO_IE_LOW 0x100
+#define GPIO_IE_HIGH 0x104
+
+/* read only */
+#define GPIO_MIS_LOW 0x110
+#define GPIO_MIS_HIGH 0x114
+#define GPIO_DIN_LOW 0x118
+#define GPIO_DIN_HIGH 0x11c
+
+#define PADCFG_PAD_GMAC_SYSCON_SHIFT 0x0
+#define PADCFG_PAD_GMAC_SYSCON_MASK GENMASK(1, 0)
+
+/* one dword include 4 gpios */
+#define GPIO_NUM_SHIFT 2
+#define GPIO_NUM_PER_REG 32
+#define OFFSET_PER_REG 4
+#define SYS_GPIO_NUM 64
+
+enum starfive_jh7110_sys_pads {
+ PAD_GPIO0 = 0,
+ PAD_GPIO1 = 1,
+ PAD_GPIO2 = 2,
+ PAD_GPIO3 = 3,
+ PAD_GPIO4 = 4,
+ PAD_GPIO5 = 5,
+ PAD_GPIO6 = 6,
+ PAD_GPIO7 = 7,
+ PAD_GPIO8 = 8,
+ PAD_GPIO9 = 9,
+ PAD_GPIO10 = 10,
+ PAD_GPIO11 = 11,
+ PAD_GPIO12 = 12,
+ PAD_GPIO13 = 13,
+ PAD_GPIO14 = 14,
+ PAD_GPIO15 = 15,
+ PAD_GPIO16 = 16,
+ PAD_GPIO17 = 17,
+ PAD_GPIO18 = 18,
+ PAD_GPIO19 = 19,
+ PAD_GPIO20 = 20,
+ PAD_GPIO21 = 21,
+ PAD_GPIO22 = 22,
+ PAD_GPIO23 = 23,
+ PAD_GPIO24 = 24,
+ PAD_GPIO25 = 25,
+ PAD_GPIO26 = 26,
+ PAD_GPIO27 = 27,
+ PAD_GPIO28 = 28,
+ PAD_GPIO29 = 29,
+ PAD_GPIO30 = 30,
+ PAD_GPIO31 = 31,
+ PAD_GPIO32 = 32,
+ PAD_GPIO33 = 33,
+ PAD_GPIO34 = 34,
+ PAD_GPIO35 = 35,
+ PAD_GPIO36 = 36,
+ PAD_GPIO37 = 37,
+ PAD_GPIO38 = 38,
+ PAD_GPIO39 = 39,
+ PAD_GPIO40 = 40,
+ PAD_GPIO41 = 41,
+ PAD_GPIO42 = 42,
+ PAD_GPIO43 = 43,
+ PAD_GPIO44 = 44,
+ PAD_GPIO45 = 45,
+ PAD_GPIO46 = 46,
+ PAD_GPIO47 = 47,
+ PAD_GPIO48 = 48,
+ PAD_GPIO49 = 49,
+ PAD_GPIO50 = 50,
+ PAD_GPIO51 = 51,
+ PAD_GPIO52 = 52,
+ PAD_GPIO53 = 53,
+ PAD_GPIO54 = 54,
+ PAD_GPIO55 = 55,
+ PAD_GPIO56 = 56,
+ PAD_GPIO57 = 57,
+ PAD_GPIO58 = 58,
+ PAD_GPIO59 = 59,
+ PAD_GPIO60 = 60,
+ PAD_GPIO61 = 61,
+ PAD_GPIO62 = 62,
+ PAD_GPIO63 = 63,
+ PAD_SD0_CLK = 64,
+ PAD_SD0_CMD = 65,
+ PAD_SD0_DATA0 = 66,
+ PAD_SD0_DATA1 = 67,
+ PAD_SD0_DATA2 = 68,
+ PAD_SD0_DATA3 = 69,
+ PAD_SD0_DATA4 = 70,
+ PAD_SD0_DATA5 = 71,
+ PAD_SD0_DATA6 = 72,
+ PAD_SD0_DATA7 = 73,
+ PAD_SD0_STRB = 74,
+ PAD_GMAC1_MDC = 75,
+ PAD_GMAC1_MDIO = 76,
+ PAD_GMAC1_RXD0 = 77,
+ PAD_GMAC1_RXD1 = 78,
+ PAD_GMAC1_RXD2 = 79,
+ PAD_GMAC1_RXD3 = 80,
+ PAD_GMAC1_RXDV = 81,
+ PAD_GMAC1_RXC = 82,
+ PAD_GMAC1_TXD0 = 83,
+ PAD_GMAC1_TXD1 = 84,
+ PAD_GMAC1_TXD2 = 85,
+ PAD_GMAC1_TXD3 = 86,
+ PAD_GMAC1_TXEN = 87,
+ PAD_GMAC1_TXC = 88,
+ PAD_QSPI_SCLK = 89,
+ PAD_QSPI_CSn0 = 90,
+ PAD_QSPI_DATA0 = 91,
+ PAD_QSPI_DATA1 = 92,
+ PAD_QSPI_DATA2 = 93,
+ PAD_QSPI_DATA3 = 94,
+};
+
+/* Pad names for the pinmux subsystem */
+static const struct pinctrl_pin_desc starfive_jh7110_sys_pinctrl_pads[] = {
+ STARFIVE_PINCTRL_PIN(PAD_GPIO0),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO1),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO2),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO3),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO4),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO5),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO6),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO7),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO8),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO9),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO10),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO11),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO12),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO13),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO14),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO15),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO16),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO17),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO18),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO19),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO20),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO21),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO22),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO23),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO24),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO25),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO26),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO27),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO28),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO29),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO30),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO31),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO32),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO33),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO34),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO35),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO36),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO37),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO38),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO39),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO40),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO41),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO42),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO43),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO44),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO45),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO46),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO47),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO48),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO49),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO50),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO51),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO52),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO53),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO54),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO55),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO56),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO57),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO58),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO59),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO60),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO61),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO62),
+ STARFIVE_PINCTRL_PIN(PAD_GPIO63),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_CLK),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_CMD),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_DATA0),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_DATA1),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_DATA2),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_DATA3),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_DATA4),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_DATA5),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_DATA6),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_DATA7),
+ STARFIVE_PINCTRL_PIN(PAD_SD0_STRB),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_MDC),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_MDIO),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_RXD0),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_RXD1),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_RXD2),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_RXD3),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_RXDV),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_RXC),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_TXD0),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_TXD1),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_TXD2),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_TXD3),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_TXEN),
+ STARFIVE_PINCTRL_PIN(PAD_GMAC1_TXC),
+ STARFIVE_PINCTRL_PIN(PAD_QSPI_SCLK),
+ STARFIVE_PINCTRL_PIN(PAD_QSPI_CSn0),
+ STARFIVE_PINCTRL_PIN(PAD_QSPI_DATA0),
+ STARFIVE_PINCTRL_PIN(PAD_QSPI_DATA1),
+ STARFIVE_PINCTRL_PIN(PAD_QSPI_DATA2),
+ STARFIVE_PINCTRL_PIN(PAD_QSPI_DATA3),
+};
+
+static int jh7110_sys_direction_input(struct gpio_chip *gc,
+ unsigned int gpio)
+{
+ struct starfive_pinctrl *chip = gpiochip_get_data(gc);
+ unsigned long flags;
+ unsigned int offset, shift;
+ void __iomem *reg_doen;
+ u32 mask;
+
+ if (gpio >= gc->ngpio)
+ return -EINVAL;
+
+ offset = GET_GPO_REG_OFFSET(gpio);
+ shift = GET_GPO_CFG_SHIFT(gpio);
+ mask = SYS_GPO_DOEN_MASK << shift;
+ reg_doen = chip->padctl_base + SYS_GPO_DOEN_CFG + offset;
+
+ raw_spin_lock_irqsave(&chip->lock, flags);
+ pinctrl_set_reg(reg_doen, 1, shift, mask);
+ raw_spin_unlock_irqrestore(&chip->lock, flags);
+
+ return 0;
+}
+
+static int jh7110_sys_direction_output(struct gpio_chip *gc,
+ unsigned int gpio,
+ int value)
+{
+ struct starfive_pinctrl *chip = gpiochip_get_data(gc);
+ unsigned long flags;
+ unsigned int offset, shift;
+ void __iomem *reg_doen, *reg_dout;
+ u32 mask_doen, mask_dout;
+
+ if (gpio >= gc->ngpio)
+ return -EINVAL;
+
+ offset = GET_GPO_REG_OFFSET(gpio);
+ shift = GET_GPO_CFG_SHIFT(gpio);
+ mask_doen = SYS_GPO_DOEN_MASK << shift;
+ mask_dout = SYS_GPO_DOUT_MASK << shift;
+ reg_doen = chip->padctl_base + SYS_GPO_DOEN_CFG + offset;
+ reg_dout = chip->padctl_base + SYS_GPO_DOUT_CFG + offset;
+
+ raw_spin_lock_irqsave(&chip->lock, flags);
+ pinctrl_set_reg(reg_doen, 0, shift, mask_doen);
+
+ pinctrl_set_reg(reg_dout, value, shift, mask_dout);
+ raw_spin_unlock_irqrestore(&chip->lock, flags);
+
+ return 0;
+}
+
+static int jh7110_sys_get_direction(struct gpio_chip *gc,
+ unsigned int gpio)
+{
+ struct starfive_pinctrl *chip = gpiochip_get_data(gc);
+ unsigned long flags;
+ unsigned int doen;
+ unsigned int offset, shift;
+ void __iomem *reg_doen;
+ u32 mask;
+
+ if (gpio >= gc->ngpio)
+ return -EINVAL;
+
+ offset = GET_GPO_REG_OFFSET(gpio);
+ shift = GET_GPO_CFG_SHIFT(gpio);
+ mask = SYS_GPO_DOEN_MASK << shift;
+ reg_doen = chip->padctl_base + SYS_GPO_DOEN_CFG + offset;
+
+ raw_spin_lock_irqsave(&chip->lock, flags);
+ doen = readl_relaxed(reg_doen);
+ raw_spin_unlock_irqrestore(&chip->lock, flags);
+
+ return !!(doen & mask);
+}
+
+static int jh7110_sys_get_value(struct gpio_chip *gc,
+ unsigned int gpio)
+{
+ struct starfive_pinctrl *chip = gpiochip_get_data(gc);
+ int value;
+ int tmp;
+
+ if (gpio >= gc->ngpio)
+ return -EINVAL;
+
+ if (gpio < GPIO_NUM_PER_REG) {
+ value = readl_relaxed(chip->padctl_base + GPIO_DIN_LOW);
+ tmp = 0;
+ } else {
+ value = readl_relaxed(chip->padctl_base + GPIO_DIN_HIGH);
+ tmp = GPIO_NUM_PER_REG;
+ }
+ return (value >> (gpio - tmp)) & 0x1;
+}
+
+static void jh7110_sys_set_value(struct gpio_chip *gc,
+ unsigned int gpio,
+ int value)
+{
+ struct starfive_pinctrl *chip = gpiochip_get_data(gc);
+ unsigned long flags;
+ unsigned int offset, shift;
+ void __iomem *reg_dout;
+ u32 mask;
+
+ if (gpio >= gc->ngpio)
+ return;
+
+ offset = GET_GPO_REG_OFFSET(gpio);
+ shift = GET_GPO_CFG_SHIFT(gpio);
+ mask = SYS_GPO_DOUT_MASK << shift;
+ reg_dout = chip->padctl_base + SYS_GPO_DOUT_CFG + offset;
+
+ raw_spin_lock_irqsave(&chip->lock, flags);
+ pinctrl_set_reg(reg_dout, value, shift, mask);
+ raw_spin_unlock_irqrestore(&chip->lock, flags);
+}
+
+static int jh7110_sys_irq_set_type(struct irq_data *d,
+ unsigned int trigger)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_data(d);
+ irq_hw_number_t gpio = irqd_to_hwirq(d);
+ void __iomem *base = sfp->padctl_base +
+ OFFSET_PER_REG * (gpio / GPIO_NUM_PER_REG);
+ u32 mask = BIT(gpio % GPIO_NUM_PER_REG);
+ u32 irq_type, edge_both, polarity;
+ unsigned long flags;
+
+ switch (trigger) {
+ case IRQ_TYPE_LEVEL_HIGH:
+ irq_type = 0; /* 0: level triggered */
+ edge_both = 0; /* 0: ignored */
+ polarity = 0; /* 0: high level */
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ irq_type = 0; /* 0: level triggered */
+ edge_both = 0; /* 0: ignored */
+ polarity = 1; /* 1: low level */
+ break;
+ case IRQ_TYPE_EDGE_BOTH:
+ irq_type = mask; /* 1: edge triggered */
+ edge_both = mask; /* 1: both edges */
+ polarity = 0; /* 0: ignored */
+ break;
+ case IRQ_TYPE_EDGE_RISING:
+ irq_type = mask; /* 1: edge triggered */
+ edge_both = 0; /* 0: single edge */
+ polarity = mask; /* 1: rising edge */
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ irq_type = mask; /* 1: edge triggered */
+ edge_both = 0; /* 0: single edge */
+ polarity = 0; /* 0: falling edge */
+ break;
+ }
+ if (trigger & IRQ_TYPE_EDGE_BOTH)
+ irq_set_handler_locked(d, handle_edge_irq);
+ else
+ irq_set_handler_locked(d, handle_level_irq);
+
+ raw_spin_lock_irqsave(&sfp->lock, flags);
+ irq_type |= readl_relaxed(base + GPIO_IS_LOW) & ~mask;
+ writel_relaxed(irq_type, base + GPIO_IS_LOW);
+
+ edge_both |= readl_relaxed(base + GPIO_IBE_LOW) & ~mask;
+ writel_relaxed(edge_both, base + GPIO_IBE_LOW);
+
+ polarity |= readl_relaxed(base + GPIO_IEV_LOW) & ~mask;
+ writel_relaxed(polarity, base + GPIO_IEV_LOW);
+ raw_spin_unlock_irqrestore(&sfp->lock, flags);
+
+ sfp->trigger[gpio] = trigger;
+ return 0;
+}
+
+/* chained_irq_{enter,exit} already mask the parent */
+static void jh7110_sys_irq_mask(struct irq_data *d)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_data(d);
+ irq_hw_number_t gpio = irqd_to_hwirq(d);
+ void __iomem *ie = sfp->padctl_base + GPIO_IE_LOW +
+ OFFSET_PER_REG * (gpio / GPIO_NUM_PER_REG);
+ u32 mask = BIT(gpio % GPIO_NUM_PER_REG);
+ unsigned long flags;
+ u32 value;
+
+ if (gpio < 0 || gpio >= sfp->gc.ngpio)
+ return;
+
+ raw_spin_lock_irqsave(&sfp->lock, flags);
+ value = readl_relaxed(ie) & ~mask;
+ writel_relaxed(value, ie);
+ raw_spin_unlock_irqrestore(&sfp->lock, flags);
+}
+
+static void jh7110_sys_irq_unmask(struct irq_data *d)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_data(d);
+ irq_hw_number_t gpio = irqd_to_hwirq(d);
+ void __iomem *ie = sfp->padctl_base + GPIO_IE_LOW +
+ OFFSET_PER_REG * (gpio / GPIO_NUM_PER_REG);
+ u32 mask = BIT(gpio % GPIO_NUM_PER_REG);
+ unsigned long flags;
+ u32 value;
+
+ if (gpio < 0 || gpio >= sfp->gc.ngpio)
+ return;
+
+ raw_spin_lock_irqsave(&sfp->lock, flags);
+ value = readl_relaxed(ie) | mask;
+ writel_relaxed(value, ie);
+ raw_spin_unlock_irqrestore(&sfp->lock, flags);
+}
+
+static void jh7110_sys_irq_ack(struct irq_data *d)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_data(d);
+ irq_hw_number_t gpio = irqd_to_hwirq(d);
+ void __iomem *ic = sfp->padctl_base + GPIO_IC_LOW +
+ OFFSET_PER_REG * (gpio / GPIO_NUM_PER_REG);
+ u32 mask = BIT(gpio % GPIO_NUM_PER_REG);
+ unsigned long flags;
+ u32 value;
+
+ if (gpio < 0 || gpio >= sfp->gc.ngpio)
+ return;
+
+ raw_spin_lock_irqsave(&sfp->lock, flags);
+ value = readl_relaxed(ic) & ~mask;
+ writel_relaxed(value, ic);
+ writel_relaxed(value | mask, ic);
+ raw_spin_unlock_irqrestore(&sfp->lock, flags);
+}
+
+static void jh7110_sys_irq_mask_ack(struct irq_data *d)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_data(d);
+ irq_hw_number_t gpio = irqd_to_hwirq(d);
+ void __iomem *ie = sfp->padctl_base + GPIO_IE_LOW +
+ OFFSET_PER_REG * (gpio / GPIO_NUM_PER_REG);
+ void __iomem *ic = sfp->padctl_base + GPIO_IC_LOW +
+ OFFSET_PER_REG * (gpio / GPIO_NUM_PER_REG);
+ u32 mask = BIT(gpio % GPIO_NUM_PER_REG);
+ unsigned long flags;
+ u32 value;
+
+ if (gpio < 0 || gpio >= sfp->gc.ngpio)
+ return;
+
+ raw_spin_lock_irqsave(&sfp->lock, flags);
+ value = readl_relaxed(ie) & ~mask;
+ writel_relaxed(value, ie);
+
+ value = readl_relaxed(ic) & ~mask;
+ writel_relaxed(value, ic);
+ writel_relaxed(value | mask, ic);
+ raw_spin_unlock_irqrestore(&sfp->lock, flags);
+}
+
+static struct irq_chip jh7110_sys_irqchip = {
+ .name = "starfive-jh7110-sys-gpio",
+ .irq_ack = jh7110_sys_irq_ack,
+ .irq_mask_ack = jh7110_sys_irq_mask_ack,
+ .irq_set_type = jh7110_sys_irq_set_type,
+ .irq_mask = jh7110_sys_irq_mask,
+ .irq_unmask = jh7110_sys_irq_unmask,
+ .flags = IRQCHIP_IMMUTABLE | IRQCHIP_SET_TYPE_MASKED,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
+static void jh7110_sys_irq_handler(struct irq_desc *desc)
+{
+ struct starfive_pinctrl *sfp = starfive_from_irq_desc(desc);
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ unsigned long mis;
+ unsigned int pin;
+
+ chained_irq_enter(chip, desc);
+
+ mis = readl_relaxed(sfp->padctl_base + GPIO_MIS_LOW);
+ for_each_set_bit(pin, &mis, GPIO_NUM_PER_REG)
+ generic_handle_domain_irq(sfp->gc.irq.domain, pin);
+
+ mis = readl_relaxed(sfp->padctl_base + GPIO_MIS_HIGH);
+ for_each_set_bit(pin, &mis, GPIO_NUM_PER_REG)
+ generic_handle_domain_irq(sfp->gc.irq.domain,
+ pin + GPIO_NUM_PER_REG);
+
+ chained_irq_exit(chip, desc);
+}
+
+static int jh7110_sys_init_hw(struct gpio_chip *gc)
+{
+ struct starfive_pinctrl *sfp = container_of(gc,
+ struct starfive_pinctrl, gc);
+
+ /* mask all GPIO interrupts */
+ writel_relaxed(0, sfp->padctl_base + GPIO_IE_LOW);
+ writel_relaxed(0, sfp->padctl_base + GPIO_IE_HIGH);
+ /* clear edge interrupt flags */
+ writel_relaxed(0, sfp->padctl_base + GPIO_IC_LOW);
+ writel_relaxed(0, sfp->padctl_base + GPIO_IC_HIGH);
+ writel_relaxed(~0U, sfp->padctl_base + GPIO_IC_LOW);
+ writel_relaxed(~0U, sfp->padctl_base + GPIO_IC_HIGH);
+ /* enable GPIO interrupts */
+ writel_relaxed(1, sfp->padctl_base + GPIO_EN);
+ return 0;
+}
+
+static int jh7110_sys_add_pin_ranges(struct gpio_chip *gc)
+{
+ struct starfive_pinctrl *sfp = container_of(gc,
+ struct starfive_pinctrl, gc);
+
+ sfp->gpios.name = sfp->gc.label;
+ sfp->gpios.base = sfp->gc.base;
+ /*
+ * sfp->gpios.pin_base depends on the chosen signal group
+ * and is set in starfive_probe()
+ */
+ sfp->gpios.npins = SYS_GPIO_NUM;
+ sfp->gpios.gc = &sfp->gc;
+ pinctrl_add_gpio_range(sfp->pctl_dev, &sfp->gpios);
+ return 0;
+}
+
+static int jh7110_sys_gpio_register(struct platform_device *pdev,
+ struct starfive_pinctrl *pctl)
+{
+ struct device *dev = &pdev->dev;
+ int ret, ngpio;
+ int loop;
+
+ ngpio = SYS_GPIO_NUM;
+
+ pctl->gc.direction_input = jh7110_sys_direction_input;
+ pctl->gc.direction_output = jh7110_sys_direction_output;
+ pctl->gc.get_direction = jh7110_sys_get_direction;
+ pctl->gc.get = jh7110_sys_get_value;
+ pctl->gc.set = jh7110_sys_set_value;
+ pctl->gc.add_pin_ranges = jh7110_sys_add_pin_ranges;
+ pctl->gc.base = 0;
+ pctl->gc.ngpio = ngpio;
+ pctl->gc.label = dev_name(dev);
+ pctl->gc.parent = dev;
+ pctl->gc.owner = THIS_MODULE;
+ pctl->enabled = 0;
+
+ platform_set_drvdata(pdev, pctl);
+
+ jh7110_sys_irqchip.name = pctl->gc.label;
+
+ pctl->gc.irq.chip = &jh7110_sys_irqchip;
+ pctl->gc.irq.parent_handler = jh7110_sys_irq_handler;
+ pctl->gc.irq.num_parents = 1;
+ pctl->gc.irq.parents = devm_kcalloc(dev, pctl->gc.irq.num_parents,
+ sizeof(*pctl->gc.irq.parents),
+ GFP_KERNEL);
+ if (!pctl->gc.irq.parents)
+ return -ENOMEM;
+ pctl->gc.irq.default_type = IRQ_TYPE_NONE;
+ pctl->gc.irq.handler = handle_bad_irq;
+ pctl->gc.irq.init_hw = jh7110_sys_init_hw;
+
+ if (IS_ENABLED(CONFIG_PM))
+ pm_runtime_enable(dev);
+
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0)
+ return ret;
+ pctl->gc.irq.parents[0] = ret;
+
+ ret = devm_gpiochip_add_data(dev, &pctl->gc, pctl);
+ if (ret)
+ return dev_err_probe(dev, ret,
+ "could not register gpiochip\n");
+
+ for (loop = 0; loop < SYS_GPIO_NUM; loop++) {
+ unsigned int v;
+ void __iomem *reg_ie = pctl->padctl_base +
+ SYS_GPIO_INPUT_ENABLE_REG + (loop << 2);
+
+ v = readl_relaxed(reg_ie);
+ v |= 0x1;
+ writel_relaxed(v, reg_ie);
+ }
+
+ dev_info(dev, "StarFive SYS GPIO chip registered %d GPIOs\n", ngpio);
+
+ return 0;
+}
+
+static int jh7110_pinconf_get(struct pinctrl_dev *pctldev,
+ unsigned int pin_id,
+ unsigned long *config)
+{
+ struct starfive_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+ const struct starfive_pin_reg *pin_reg = &pctl->pin_regs[pin_id];
+ u32 value;
+
+ if (pin_reg->io_conf_reg == -1) {
+ dev_err(pctl->dev,
+ "Pin(%s) does not support config function\n",
+ info->pins[pin_id].name);
+ return -EINVAL;
+ }
+
+ value = readl_relaxed(pctl->padctl_base + pin_reg->io_conf_reg);
+ *config = value & 0xff;
+ return 0;
+}
+
+static int jh7110_pinconf_set(struct pinctrl_dev *pctldev,
+ unsigned int pin_id,
+ unsigned long *configs,
+ unsigned int num_configs)
+{
+ struct starfive_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+ const struct starfive_pin_reg *pin_reg = &pctl->pin_regs[pin_id];
+ int i;
+ u32 value;
+ unsigned long flags;
+
+ if (pin_reg->io_conf_reg == -1) {
+ dev_err(pctl->dev,
+ "Pin(%s) does not support config function\n",
+ info->pins[pin_id].name);
+ return -EINVAL;
+ }
+
+ raw_spin_lock_irqsave(&pctl->lock, flags);
+ for (i = 0; i < num_configs; i++) {
+ value = readl_relaxed(pctl->padctl_base +
+ pin_reg->io_conf_reg);
+ value = value | (configs[i] & 0xFF);
+ writel_relaxed(value, pctl->padctl_base +
+ pin_reg->io_conf_reg);
+ }
+ raw_spin_unlock_irqrestore(&pctl->lock, flags);
+
+ return 0;
+}
+
+static int jh7110_sys_pmx_set_one_pin_mux(struct starfive_pinctrl *pctl,
+ struct starfive_pin *pin)
+{
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+ struct starfive_pin_config *pin_config = &pin->pin_config;
+ const struct starfive_pin_reg *pin_reg;
+ unsigned int gpio, pin_id;
+ int i;
+ unsigned long flags;
+ int n, shift;
+
+ gpio = pin->pin_config.gpio_num;
+ pin_id = pin->pin;
+ pin_reg = &pctl->pin_regs[pin_id];
+
+ raw_spin_lock_irqsave(&pctl->lock, flags);
+ if (pin_reg->func_sel_reg != -1) {
+ pinctrl_set_reg(pctl->padctl_base + pin_reg->func_sel_reg,
+ pin_config->pinmux_func,
+ pin_reg->func_sel_shift,
+ pin_reg->func_sel_mask);
+ }
+
+ shift = GET_GPO_CFG_SHIFT(gpio);
+ if (pin_reg->gpo_dout_reg != -1) {
+ pinctrl_write_reg(pctl->padctl_base + pin_reg->gpo_dout_reg,
+ SYS_GPO_DOUT_MASK << shift, pin_config->gpio_dout << shift);
+ }
+
+ if (pin_reg->gpo_doen_reg != -1) {
+ pinctrl_write_reg(pctl->padctl_base + pin_reg->gpo_doen_reg,
+ SYS_GPO_DOEN_MASK << shift, pin_config->gpio_doen << shift);
+ }
+
+ for (i = 0; i < pin_config->gpio_din_num; i++) {
+ n = pin_config->gpio_din_reg[i] >> 2;
+ shift = (pin_config->gpio_din_reg[i] & 3) << 3;
+ pinctrl_write_reg(pctl->padctl_base + info->din_reg_base + n * 4,
+ SYS_GPI_DIN_MASK << shift, (gpio + 2) << shift);
+ }
+
+ if (pin_reg->syscon_reg != -1) {
+ pinctrl_set_reg(pctl->padctl_base + pin_reg->syscon_reg,
+ pin_config->syscon, PADCFG_PAD_GMAC_SYSCON_SHIFT,
+ PADCFG_PAD_GMAC_SYSCON_MASK);
+ }
+
+ if (pin_reg->pad_sel_reg != -1) {
+ pinctrl_set_reg(pctl->padctl_base + pin_reg->pad_sel_reg,
+ pin_config->padmux_func,
+ pin_reg->pad_sel_shift,
+ pin_reg->pad_sel_mask);
+ }
+ raw_spin_unlock_irqrestore(&pctl->lock, flags);
+
+ return 0;
+}
+
+static void jh7110_sys_parse_pin_config(struct starfive_pinctrl *pctl,
+ unsigned int *pins_id,
+ struct starfive_pin *pin_data,
+ const __be32 *list_p,
+ struct device_node *np)
+{
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+ struct starfive_pin_reg *pin_reg;
+ const __be32 *list = list_p;
+ const __be32 *list_din;
+ int size;
+ int size_din;
+ int pin_size;
+ u32 value;
+ int i;
+ int n;
+
+ pin_size = sizeof(u32);
+ *pins_id = be32_to_cpu(*list);
+ pin_reg = &pctl->pin_regs[*pins_id];
+ pin_data->pin = *pins_id;
+
+ if (pin_data->pin > PAD_QSPI_DATA3) {
+ dev_err(pctl->dev, "err pin num = %d\n", pin_data->pin);
+ return;
+ }
+
+ if (pin_data->pin < PAD_GMAC1_MDC) {
+ pin_reg->io_conf_reg = (pin_data->pin * SYS_GPO_PDA_CFG_OFFSET)
+ + SYS_GPO_PDA_0_74_CFG;
+ } else if (pin_data->pin > PAD_GMAC1_TXC) {
+ pin_reg->io_conf_reg = (pin_data->pin * SYS_GPO_PDA_CFG_OFFSET)
+ + SYS_GPO_PDA_89_94_CFG;
+ }
+
+ if (!of_property_read_u32(np, "starfive,pin-ioconfig", &value))
+ pin_data->pin_config.io_config = value;
+
+ list = of_get_property(np, "starfive,pinmux", &size);
+ if (list) {
+ pin_reg->func_sel_reg = be32_to_cpu(*list++);
+ pin_reg->func_sel_shift = be32_to_cpu(*list++);
+ pin_reg->func_sel_mask = be32_to_cpu(*list++);
+ pin_data->pin_config.pinmux_func = be32_to_cpu(*list++);
+ }
+
+ list = of_get_property(np, "starfive,padmux", &size);
+ if (list) {
+ pin_reg->pad_sel_reg = be32_to_cpu(*list++);
+ pin_reg->pad_sel_shift = be32_to_cpu(*list++);
+ pin_reg->pad_sel_mask = be32_to_cpu(*list++);
+ pin_data->pin_config.padmux_func = be32_to_cpu(*list++);
+ }
+
+ list = of_get_property(np, "starfive,pin-syscon", &size);
+ if (list) {
+ pin_reg->syscon_reg = be32_to_cpu(*list++);
+ pin_data->pin_config.syscon = be32_to_cpu(*list++);
+ }
+
+ if (pin_data->pin < PAD_SD0_CLK) {
+ pin_data->pin_config.gpio_num = pin_data->pin;
+ n = pin_data->pin_config.gpio_num >> GPIO_NUM_SHIFT;
+
+ if (!of_property_read_u32(np, "starfive,pin-gpio-dout", &value)) {
+ pin_data->pin_config.gpio_dout = value;
+ pin_reg->gpo_dout_reg = info->dout_reg_base + n * 4;
+ }
+
+ if (!of_property_read_u32(np, "starfive,pin-gpio-doen", &value)) {
+ pin_data->pin_config.gpio_doen = value;
+ pin_reg->gpo_doen_reg = info->doen_reg_base + n * 4;
+ }
+
+ list_din = of_get_property(np, "starfive,pin-gpio-din", &size_din);
+ if (list_din) {
+ if (!size_din || size_din % pin_size) {
+ dev_err(pctl->dev,
+ "Invalid starfive,pin-gpio-din property in node\n");
+ return;
+ }
+
+ pin_data->pin_config.gpio_din_num = size_din / pin_size;
+ pin_data->pin_config.gpio_din_reg =
+ devm_kcalloc(pctl->dev,
+ pin_data->pin_config.gpio_din_num,
+ sizeof(s32),
+ GFP_KERNEL);
+
+ for (i = 0; i < pin_data->pin_config.gpio_din_num; i++) {
+ value = be32_to_cpu(*list_din++);
+ pin_data->pin_config.gpio_din_reg[i] = value;
+ }
+ }
+ }
+}
+
+static const struct starfive_pinctrl_soc_info jh7110_sys_pinctrl_info = {
+ .pins = starfive_jh7110_sys_pinctrl_pads,
+ .npins = ARRAY_SIZE(starfive_jh7110_sys_pinctrl_pads),
+ .flags = 1,
+ .dout_reg_base = SYS_GPO_DOUT_CFG,
+ .doen_reg_base = SYS_GPO_DOEN_CFG,
+ .din_reg_base = SYS_GPI_DIN_CFG,
+ .starfive_pinconf_get = jh7110_pinconf_get,
+ .starfive_pinconf_set = jh7110_pinconf_set,
+ .starfive_pmx_set_one_pin_mux = jh7110_sys_pmx_set_one_pin_mux,
+ .starfive_gpio_register = jh7110_sys_gpio_register,
+ .starfive_pinctrl_parse_pin = jh7110_sys_parse_pin_config,
+};
+
+static const struct of_device_id jh7110_sys_pinctrl_of_match[] = {
+ {
+ .compatible = "starfive,jh7110-sys-pinctrl",
+ .data = &jh7110_sys_pinctrl_info,
+ },
+ { /* sentinel */ }
+};
+
+static int jh7110_sys_pinctrl_probe(struct platform_device *pdev)
+{
+ const struct starfive_pinctrl_soc_info *pinctrl_info;
+
+ pinctrl_info = of_device_get_match_data(&pdev->dev);
+ if (!pinctrl_info)
+ return -ENODEV;
+
+ return starfive_pinctrl_probe(pdev, pinctrl_info);
+}
+
+static struct platform_driver jh7110_sys_pinctrl_driver = {
+ .driver = {
+ .name = "starfive-jh7110-sys-pinctrl",
+ .of_match_table = of_match_ptr(jh7110_sys_pinctrl_of_match),
+ },
+ .probe = jh7110_sys_pinctrl_probe,
+};
+
+static int __init jh7110_sys_pinctrl_init(void)
+{
+ return platform_driver_register(&jh7110_sys_pinctrl_driver);
+}
+arch_initcall(jh7110_sys_pinctrl_init);
+
+MODULE_DESCRIPTION("Pinctrl driver for StarFive JH7110 SoC sys controller");
+MODULE_AUTHOR("Jenny Zhang <jenny.zhang@starfivetech.com>");
+MODULE_AUTHOR("Jianlong Huang <jianlong.huang@starfivetech.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/starfive/pinctrl-starfive.c b/drivers/pinctrl/starfive/pinctrl-starfive.c
new file mode 100644
index 000000000000..80cf74ebc0e2
--- /dev/null
+++ b/drivers/pinctrl/starfive/pinctrl-starfive.c
@@ -0,0 +1,539 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Pinctrl / GPIO driver for StarFive JH7110 SoC
+ *
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ */
+
+#include <linux/clk.h>
+#include <linux/gpio/driver.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <linux/slab.h>
+
+#include "../core.h"
+#include "../pinctrl-utils.h"
+#include "../pinconf.h"
+#include "../pinmux.h"
+#include "pinctrl-starfive.h"
+
+static inline const struct group_desc *
+starfive_pinctrl_find_group_by_name(struct pinctrl_dev *pctldev,
+ const char *name)
+{
+ const struct group_desc *grp = NULL;
+ int i;
+
+ for (i = 0; i < pctldev->num_groups; i++) {
+ grp = pinctrl_generic_get_group(pctldev, i);
+ if (grp && !strcmp(grp->name, name))
+ break;
+ }
+
+ return grp;
+}
+
+static void starfive_pin_dbg_show(struct pinctrl_dev *pctldev,
+ struct seq_file *s,
+ unsigned int offset)
+{
+ seq_printf(s, "%s", dev_name(pctldev->dev));
+}
+
+static int starfive_dt_node_to_map(struct pinctrl_dev *pctldev,
+ struct device_node *np,
+ struct pinctrl_map **maps,
+ unsigned int *num_maps)
+{
+ struct starfive_pinctrl *sfp = pinctrl_dev_get_drvdata(pctldev);
+ struct device *dev = sfp->gc.parent;
+ const struct starfive_pinctrl_soc_info *info = sfp->info;
+ struct starfive_pin *pin_data;
+ struct device_node *child;
+ struct pinctrl_map *map;
+ struct group_desc *grp;
+ const char **pgnames;
+ const char *grpname;
+ int ngroups;
+ int nmaps;
+ int ret;
+ int *pins_id;
+ int psize, pin_size;
+ int size = 0;
+ int offset = 0;
+ const __be32 *list;
+ int i, child_num_pins;
+
+ nmaps = 0;
+ ngroups = 0;
+ pin_size = STARFIVE_PINS_SIZE;
+
+ for_each_child_of_node(np, child) {
+ list = of_get_property(child, "starfive,pins", &psize);
+ if (!list) {
+ dev_err(sfp->dev,
+ "no starfive,pins and pins property in node %pOF\n", np);
+ return -EINVAL;
+ }
+ size += psize;
+ }
+
+ if (!size || size % pin_size) {
+ dev_err(sfp->dev,
+ "Invalid starfive,pins or pins property in node %pOF\n", np);
+ return -EINVAL;
+ }
+
+ nmaps = size / pin_size * 2;
+ ngroups = size / pin_size;
+
+ pgnames = devm_kcalloc(dev, ngroups, sizeof(*pgnames), GFP_KERNEL);
+ if (!pgnames)
+ return -ENOMEM;
+
+ map = kcalloc(nmaps, sizeof(*map), GFP_KERNEL);
+ if (!map)
+ return -ENOMEM;
+
+ grp = devm_kzalloc(sfp->dev, sizeof(struct group_desc), GFP_KERNEL);
+ if (!grp) {
+ of_node_put(child);
+ return -ENOMEM;
+ }
+
+ grp->data = devm_kcalloc(sfp->dev,
+ ngroups, sizeof(struct starfive_pin),
+ GFP_KERNEL);
+ grp->pins = devm_kcalloc(sfp->dev,
+ ngroups, sizeof(int),
+ GFP_KERNEL);
+ if (!grp->pins || !grp->data)
+ return -ENOMEM;
+
+ nmaps = 0;
+ ngroups = 0;
+ mutex_lock(&sfp->mutex);
+
+ for_each_child_of_node(np, child) {
+ grpname = devm_kasprintf(dev, GFP_KERNEL, "%pOFn.%pOFn", np, child);
+ if (!grpname) {
+ ret = -ENOMEM;
+ goto put_child;
+ }
+
+ pgnames[ngroups++] = grpname;
+ map[nmaps].type = PIN_MAP_TYPE_MUX_GROUP;
+ map[nmaps].data.mux.function = np->name;
+ map[nmaps].data.mux.group = grpname;
+ nmaps += 1;
+
+ list = of_get_property(child, "starfive,pins", &psize);
+ if (!list) {
+ dev_err(sfp->dev,
+ "no starfive,pins and pins property in node %pOF\n", np);
+ goto put_child;
+ }
+ child_num_pins = psize / pin_size;
+ grp->name = grpname;
+ grp->num_pins = child_num_pins;
+ for (i = 0; i < child_num_pins; i++) {
+ pin_data = &((struct starfive_pin *)(grp->data))[i + offset];
+ pins_id = &grp->pins[i + offset];
+
+ if (!info->starfive_pinctrl_parse_pin) {
+ dev_err(sfp->dev,
+ "pinmux ops lacks necessary functions\n");
+ goto put_child;
+ }
+
+ info->starfive_pinctrl_parse_pin(sfp,
+ pins_id, pin_data, list, child);
+ map[nmaps].type = PIN_MAP_TYPE_CONFIGS_PIN;
+ map[nmaps].data.configs.group_or_pin =
+ pin_get_name(pctldev, pin_data->pin);
+ map[nmaps].data.configs.configs =
+ &pin_data->pin_config.io_config;
+ map[nmaps].data.configs.num_configs = 1;
+ nmaps += 1;
+
+ list++;
+ }
+ offset += i;
+
+ ret = pinctrl_generic_add_group(pctldev, grpname, pins_id,
+ child_num_pins, pin_data);
+ if (ret < 0) {
+ dev_err(dev, "error adding group %s: %d\n", grpname, ret);
+ goto put_child;
+ }
+ }
+
+ ret = pinmux_generic_add_function(pctldev, np->name, pgnames, ngroups, NULL);
+ if (ret < 0) {
+ dev_err(dev, "error adding function %s: %d\n", np->name, ret);
+ goto free_map;
+ }
+
+ *maps = map;
+ *num_maps = nmaps;
+ mutex_unlock(&sfp->mutex);
+ return 0;
+
+put_child:
+ of_node_put(child);
+free_map:
+ pinctrl_utils_free_map(pctldev, map, nmaps);
+ mutex_unlock(&sfp->mutex);
+ return ret;
+}
+
+static void starfive_dt_free_map(struct pinctrl_dev *pctldev,
+ struct pinctrl_map *map,
+ unsigned int num_maps)
+{
+ kfree(map);
+}
+
+static const struct pinctrl_ops starfive_pctrl_ops = {
+ .get_groups_count = pinctrl_generic_get_group_count,
+ .get_group_name = pinctrl_generic_get_group_name,
+ .get_group_pins = pinctrl_generic_get_group_pins,
+ .pin_dbg_show = starfive_pin_dbg_show,
+ .dt_node_to_map = starfive_dt_node_to_map,
+ .dt_free_map = starfive_dt_free_map,
+};
+
+static int starfive_pmx_set(struct pinctrl_dev *pctldev,
+ unsigned int selector, unsigned int group)
+{
+ struct starfive_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+ struct function_desc *func;
+ struct group_desc *grp;
+ struct starfive_pin *pin;
+ unsigned int npins;
+ int i, err;
+
+ grp = pinctrl_generic_get_group(pctldev, group);
+ if (!grp)
+ return -EINVAL;
+
+ func = pinmux_generic_get_function(pctldev, selector);
+ if (!func)
+ return -EINVAL;
+
+ npins = grp->num_pins;
+
+ dev_dbg(pctl->dev, "enable function %s group %s\n",
+ func->name, grp->name);
+
+ for (i = 0; i < npins; i++) {
+ pin = &((struct starfive_pin *)(grp->data))[i];
+ if (info->starfive_pmx_set_one_pin_mux) {
+ err = info->starfive_pmx_set_one_pin_mux(pctl, pin);
+ if (err)
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+const struct pinmux_ops starfive_pmx_ops = {
+ .get_functions_count = pinmux_generic_get_function_count,
+ .get_function_name = pinmux_generic_get_function_name,
+ .get_function_groups = pinmux_generic_get_function_groups,
+ .set_mux = starfive_pmx_set,
+};
+
+static int starfive_pinconf_get(struct pinctrl_dev *pctldev,
+ unsigned int pin_id, unsigned long *config)
+{
+ struct starfive_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+
+ if (info->starfive_pinconf_get)
+ return info->starfive_pinconf_get(pctldev, pin_id, config);
+
+ return 0;
+}
+
+static int starfive_pinconf_set(struct pinctrl_dev *pctldev,
+ unsigned int pin_id, unsigned long *configs,
+ unsigned int num_configs)
+{
+ struct starfive_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
+ const struct starfive_pinctrl_soc_info *info = pctl->info;
+
+ if (info->starfive_pinconf_set)
+ return info->starfive_pinconf_set(pctldev, pin_id,
+ configs, num_configs);
+ return 0;
+}
+
+static void starfive_pinconf_dbg_show(struct pinctrl_dev *pctldev,
+ struct seq_file *s, unsigned int pin_id)
+{
+ struct starfive_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
+ const struct starfive_pin_reg *pin_reg;
+ unsigned long config;
+ int ret;
+
+ pin_reg = &pctl->pin_regs[pin_id];
+ if (pin_reg->io_conf_reg == -1) {
+ seq_puts(s, "N/A");
+ return;
+ }
+
+ ret = starfive_pinconf_get(pctldev, pin_id, &config);
+ if (ret)
+ return;
+ seq_printf(s, "0x%lx", config);
+}
+
+static void starfive_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,
+ struct seq_file *s, unsigned int group)
+{
+ struct group_desc *grp;
+ unsigned long config;
+ const char *name;
+ int i, ret;
+
+ if (group >= pctldev->num_groups)
+ return;
+
+ seq_puts(s, "\n");
+ grp = pinctrl_generic_get_group(pctldev, group);
+ if (!grp)
+ return;
+
+ for (i = 0; i < grp->num_pins; i++) {
+ struct starfive_pin *pin = &((struct starfive_pin *)(grp->data))[i];
+
+ name = pin_get_name(pctldev, pin->pin);
+ ret = starfive_pinconf_get(pctldev, pin->pin, &config);
+ if (ret)
+ return;
+ seq_printf(s, " %s: 0x%lx\n", name, config);
+ }
+}
+
+static const struct pinconf_ops starfive_pinconf_ops = {
+ .pin_config_get = starfive_pinconf_get,
+ .pin_config_set = starfive_pinconf_set,
+ .pin_config_dbg_show = starfive_pinconf_dbg_show,
+ .pin_config_group_dbg_show = starfive_pinconf_group_dbg_show,
+};
+
+static void starfive_disable_clock(void *data)
+{
+ clk_disable_unprepare(data);
+}
+
+void pinctrl_write_reg(void __iomem *addr, u32 mask, u32 val)
+{
+ u32 value;
+
+ value = readl_relaxed(addr);
+ value &= ~mask;
+ value |= (val & mask);
+ writel_relaxed(value, addr);
+}
+
+uint32_t pinctrl_get_reg(void __iomem *addr, u32 shift, u32 mask)
+{
+ u32 tmp;
+
+ tmp = readl_relaxed(addr);
+ tmp = (tmp & mask) >> shift;
+ return tmp;
+}
+
+void pinctrl_set_reg(void __iomem *addr, u32 data, u32 shift, u32 mask)
+{
+ u32 tmp;
+
+ tmp = readl_relaxed(addr);
+ tmp &= ~mask;
+ tmp |= (data << shift) & mask;
+ writel_relaxed(tmp, addr);
+}
+
+struct starfive_pinctrl *starfive_from_irq_desc(struct irq_desc *desc)
+{
+ struct gpio_chip *gc = irq_desc_get_handler_data(desc);
+
+ return container_of(gc, struct starfive_pinctrl, gc);
+}
+
+struct starfive_pinctrl *starfive_from_irq_data(struct irq_data *d)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+
+ return container_of(gc, struct starfive_pinctrl, gc);
+}
+
+int starfive_pinctrl_probe(struct platform_device *pdev,
+ const struct starfive_pinctrl_soc_info *info)
+{
+ struct device *dev = &pdev->dev;
+ struct pinctrl_desc *starfive_pinctrl_desc;
+ struct starfive_pinctrl *pctl;
+ struct resource *res;
+ struct reset_control *rst;
+ struct clk *clk;
+ int ret, i;
+ u32 value;
+
+ if (!info || !info->pins || !info->npins) {
+ dev_err(&pdev->dev, "wrong pinctrl info\n");
+ return -EINVAL;
+ }
+
+ pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL);
+ if (!pctl)
+ return -ENOMEM;
+
+ pctl->pin_regs = devm_kmalloc_array(&pdev->dev, info->npins,
+ sizeof(*pctl->pin_regs),
+ GFP_KERNEL);
+ if (!pctl->pin_regs)
+ return -ENOMEM;
+
+ for (i = 0; i < info->npins; i++) {
+ pctl->pin_regs[i].io_conf_reg = -1;
+ pctl->pin_regs[i].gpo_dout_reg = -1;
+ pctl->pin_regs[i].gpo_doen_reg = -1;
+ pctl->pin_regs[i].func_sel_reg = -1;
+ pctl->pin_regs[i].syscon_reg = -1;
+ pctl->pin_regs[i].pad_sel_reg = -1;
+ }
+
+ pctl->padctl_base = devm_platform_ioremap_resource_byname(pdev, "control");
+ if (IS_ERR(pctl->padctl_base))
+ return PTR_ERR(pctl->padctl_base);
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gpio");
+ if (res) {
+ pctl->gpio_base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(pctl->gpio_base))
+ return PTR_ERR(pctl->gpio_base);
+ }
+
+ clk = devm_clk_get_optional(dev, NULL);
+ if (IS_ERR(clk))
+ return dev_err_probe(dev, PTR_ERR(clk), "could not get clock\n");
+
+ rst = devm_reset_control_get_exclusive(dev, NULL);
+ if (IS_ERR(rst))
+ return dev_err_probe(dev, PTR_ERR(rst), "could not get reset\n");
+
+ if (clk) {
+ ret = clk_prepare_enable(clk);
+ if (ret)
+ return dev_err_probe(dev, ret, "could not enable clock\n");
+
+ ret = devm_add_action_or_reset(dev, starfive_disable_clock, clk);
+ if (ret)
+ return ret;
+ }
+
+ /*
+ * We don't want to assert reset and risk undoing pin muxing for the
+ * early boot serial console, but let's make sure the reset line is
+ * deasserted in case someone runs a really minimal bootloader.
+ */
+ ret = reset_control_deassert(rst);
+ if (ret)
+ return dev_err_probe(dev, ret, "could not deassert reset\n");
+
+ if (info->starfive_iopad_sel_func) {
+ ret = info->starfive_iopad_sel_func(pdev, pctl, value);
+ if (ret)
+ return ret;
+ }
+
+ starfive_pinctrl_desc = devm_kzalloc(&pdev->dev,
+ sizeof(*starfive_pinctrl_desc),
+ GFP_KERNEL);
+ if (!starfive_pinctrl_desc)
+ return -ENOMEM;
+
+ raw_spin_lock_init(&pctl->lock);
+
+ starfive_pinctrl_desc->name = dev_name(&pdev->dev);
+ starfive_pinctrl_desc->pins = info->pins;
+ starfive_pinctrl_desc->npins = info->npins;
+ starfive_pinctrl_desc->pctlops = &starfive_pctrl_ops;
+ starfive_pinctrl_desc->pmxops = &starfive_pmx_ops;
+ starfive_pinctrl_desc->confops = &starfive_pinconf_ops;
+ starfive_pinctrl_desc->owner = THIS_MODULE;
+
+ mutex_init(&pctl->mutex);
+
+ pctl->info = info;
+ pctl->dev = &pdev->dev;
+ platform_set_drvdata(pdev, pctl);
+ pctl->gc.parent = dev;
+ ret = devm_pinctrl_register_and_init(&pdev->dev,
+ starfive_pinctrl_desc, pctl,
+ &pctl->pctl_dev);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "could not register starfive pinctrl driver\n");
+ return ret;
+ }
+
+ ret = pinctrl_enable(pctl->pctl_dev);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "pin controller failed to start\n");
+ return ret;
+ }
+
+ if (info->starfive_gpio_register) {
+ ret = info->starfive_gpio_register(pdev, pctl);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "starfive_gpio_register failed to register\n");
+ return ret;
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(starfive_pinctrl_probe);
+
+static int __maybe_unused starfive_pinctrl_suspend(struct device *dev)
+{
+ struct starfive_pinctrl *pctl = dev_get_drvdata(dev);
+
+ return pinctrl_force_sleep(pctl->pctl_dev);
+}
+
+static int __maybe_unused starfive_pinctrl_resume(struct device *dev)
+{
+ struct starfive_pinctrl *pctl = dev_get_drvdata(dev);
+
+ return pinctrl_force_default(pctl->pctl_dev);
+}
+
+const struct dev_pm_ops starfive_pinctrl_pm_ops = {
+ SET_LATE_SYSTEM_SLEEP_PM_OPS(starfive_pinctrl_suspend,
+ starfive_pinctrl_resume)
+};
+EXPORT_SYMBOL_GPL(starfive_pinctrl_pm_ops);
+MODULE_DESCRIPTION("Pinctrl driver for StarFive JH7110 SoC");
+MODULE_AUTHOR("Jenny Zhang <jenny.zhang@starfivetech.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/starfive/pinctrl-starfive.h b/drivers/pinctrl/starfive/pinctrl-starfive.h
new file mode 100644
index 000000000000..8b956d07baae
--- /dev/null
+++ b/drivers/pinctrl/starfive/pinctrl-starfive.h
@@ -0,0 +1,131 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Pinctrl / GPIO driver for StarFive JH7110 SoC
+ *
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ */
+
+#ifndef __DRIVERS_PINCTRL_STARFIVE_H__
+#define __DRIVERS_PINCTRL_STARFIVE_H__
+
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinmux.h>
+
+#define MAX_GPIO 64
+#define STARFIVE_PINS_SIZE 4
+
+/* 8 bits for each gpio */
+#define GPIO_BYTE_SHIFT 3
+#define GET_GPO_CFG_SHIFT(gpio) (((gpio) & 0x3) << GPIO_BYTE_SHIFT)
+#define GET_GPO_REG_OFFSET(gpio) ((gpio) & ~0x3)
+
+struct platform_device;
+
+extern const struct pinmux_ops starfive_pmx_ops;
+extern const struct dev_pm_ops starfive_pinctrl_pm_ops;
+
+struct starfive_pin_config {
+ unsigned long io_config;
+ u32 pinmux_func;
+ u32 gpio_num;
+ u32 gpio_dout;
+ u32 gpio_doen;
+ u32 gpio_din_num;
+ s32 *gpio_din_reg;
+ s32 syscon;
+ s32 padmux_func;
+};
+
+struct starfive_pin {
+ unsigned int pin;
+ struct starfive_pin_config pin_config;
+};
+
+struct starfive_pin_reg {
+ s32 io_conf_reg;
+ s32 gpo_dout_reg;
+ s32 gpo_doen_reg;
+ s32 func_sel_reg;
+ s32 func_sel_shift;
+ s32 func_sel_mask;
+ s32 syscon_reg;
+ s32 pad_sel_reg;
+ s32 pad_sel_shift;
+ s32 pad_sel_mask;
+};
+
+struct starfive_iopad_sel_func_inf {
+ unsigned int padctl_gpio_base;
+ unsigned int padctl_gpio0;
+};
+
+struct starfive_pinctrl {
+ struct device *dev;
+ struct pinctrl_dev *pctl_dev;
+ void __iomem *padctl_base;
+ void __iomem *gpio_base;
+ unsigned int padctl_gpio_base;
+ unsigned int padctl_gpio0;
+ const struct starfive_pinctrl_soc_info *info;
+ struct starfive_pin_reg *pin_regs;
+ unsigned int group_index;
+
+ struct mutex mutex;
+ raw_spinlock_t lock;
+
+ struct gpio_chip gc;
+ struct pinctrl_gpio_range gpios;
+ unsigned long enabled;
+ unsigned int trigger[MAX_GPIO];
+};
+
+struct starfive_pinctrl_soc_info {
+ const struct pinctrl_pin_desc *pins;
+ unsigned int npins;
+ unsigned int flags;
+
+ /*gpio dout/doen/din register*/
+ unsigned int dout_reg_base;
+ unsigned int dout_reg_offset;
+ unsigned int doen_reg_base;
+ unsigned int doen_reg_offset;
+ unsigned int din_reg_base;
+ unsigned int din_reg_offset;
+
+ /* sel-function */
+ int (*starfive_iopad_sel_func)(struct platform_device *pdev,
+ struct starfive_pinctrl *ipctl,
+ unsigned int func_id);
+ /* generic pinconf */
+ int (*starfive_pinconf_get)(struct pinctrl_dev *pctldev,
+ unsigned int pin_id,
+ unsigned long *config);
+ int (*starfive_pinconf_set)(struct pinctrl_dev *pctldev,
+ unsigned int pin_id,
+ unsigned long *configs,
+ unsigned int num_configs);
+
+ /* generic pinmux */
+ int (*starfive_pmx_set_one_pin_mux)(struct starfive_pinctrl *ipctl,
+ struct starfive_pin *pin);
+ /* gpio chip */
+ int (*starfive_gpio_register)(struct platform_device *pdev,
+ struct starfive_pinctrl *ipctl);
+ void (*starfive_pinctrl_parse_pin)(struct starfive_pinctrl *ipctl,
+ unsigned int *pins_id,
+ struct starfive_pin *pin_data,
+ const __be32 *list_p,
+ struct device_node *np);
+};
+
+#define STARFIVE_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
+
+int starfive_pinctrl_probe(struct platform_device *pdev,
+ const struct starfive_pinctrl_soc_info *info);
+void pinctrl_write_reg(void __iomem *addr, u32 mask, u32 val);
+uint32_t pinctrl_get_reg(void __iomem *addr, u32 shift, u32 mask);
+void pinctrl_set_reg(void __iomem *addr, u32 data, u32 shift, u32 mask);
+struct starfive_pinctrl *starfive_from_irq_desc(struct irq_desc *desc);
+struct starfive_pinctrl *starfive_from_irq_data(struct irq_data *d);
+
+#endif /* __DRIVERS_PINCTRL_STARFIVE_H__ */
--
2.17.1