1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/pinctrl/starfive/pinctrl-jh7110-aon.c b/drivers/pinctrl/starfive/pinctrl-jh7110-aon.c
new file mode 100644
index 00000000000..2d739906e24
--- /dev/null
+++ b/drivers/pinctrl/starfive/pinctrl-jh7110-aon.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Pinctrl / GPIO driver for StarFive JH7110 SoC
+ *
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ *   Author: Lee Kuan Lim <kuanlim.lee@starfivetech.com>
+ *   Author: Jianlong Huang <jianlong.huang@starfivetech.com>
+ */
+
+#include <dm/read.h>
+#include <dm/device_compat.h>
+#include <linux/io.h>
+
+#include <dt-bindings/pinctrl/pinctrl-starfive-jh7110.h>
+#include "pinctrl-starfive.h"
+
+#define JH7110_AON_NGPIO		4
+#define JH7110_AON_GC_BASE		64
+
+/* registers */
+#define JH7110_AON_DOEN		0x0
+#define JH7110_AON_DOUT		0x4
+#define JH7110_AON_GPI			0x8
+#define JH7110_AON_GPIOIN		0x2c
+
+#define JH7110_AON_GPIOEN		0xc
+#define JH7110_AON_GPIOIS		0x10
+#define JH7110_AON_GPIOIC		0x14
+#define JH7110_AON_GPIOIBE		0x18
+#define JH7110_AON_GPIOIEV		0x1c
+#define JH7110_AON_GPIOIE		0x20
+#define JH7110_AON_GPIORIS		0x28
+#define JH7110_AON_GPIOMIS		0x28
+
+#define AON_GPO_PDA_0_5_CFG		0x30
+
+static int jh7110_aon_set_one_pin_mux(struct udevice *dev, unsigned int pin,
+				      unsigned int din, u32 dout,
+				      u32 doen, u32 func)
+{
+	struct starfive_pinctrl_priv *priv = dev_get_priv(dev);
+
+	if (pin < priv->info->ngpios && func == 0)
+		starfive_set_gpiomux(dev, pin, din, dout, doen);
+
+	return 0;
+}
+
+static int jh7110_aon_get_padcfg_base(struct udevice *dev,
+				      unsigned int pin)
+{
+	if (pin < PAD_GMAC0_MDC)
+		return AON_GPO_PDA_0_5_CFG;
+
+	return -1;
+}
+
+static void jh7110_aon_init_hw(struct udevice *dev)
+{
+	struct starfive_pinctrl_priv *priv = dev_get_priv(dev);
+
+	/* mask all GPIO interrupts */
+	writel(0, priv->base + JH7110_AON_GPIOIE);
+	/* clear edge interrupt flags */
+	writel(0, priv->base + JH7110_AON_GPIOIC);
+	writel(0x0f, priv->base + JH7110_AON_GPIOIC);
+	/* enable GPIO interrupts */
+	writel(1, priv->base + JH7110_AON_GPIOEN);
+}
+
+const struct starfive_pinctrl_soc_info jh7110_aon_pinctrl_info = {
+	/* pin conf */
+	.set_one_pinmux = jh7110_aon_set_one_pin_mux,
+	.get_padcfg_base  = jh7110_aon_get_padcfg_base,
+
+	/* gpio dout/doen/din/gpioinput register */
+	.dout_reg_base = JH7110_AON_DOUT,
+	.dout_mask = GENMASK(3, 0),
+	.doen_reg_base = JH7110_AON_DOEN,
+	.doen_mask = GENMASK(2, 0),
+	.gpi_reg_base = JH7110_AON_GPI,
+	.gpi_mask = GENMASK(3, 0),
+	.gpioin_reg_base = JH7110_AON_GPIOIN,
+
+	/* gpio */
+	.gpio_bank_name = "RGPIO",
+	.ngpios = JH7110_AON_NGPIO,
+	.gpio_init_hw = jh7110_aon_init_hw,
+};
+
+static int jh7110_aon_pinctrl_probe(struct udevice *dev)
+{
+	struct starfive_pinctrl_soc_info *info =
+		(struct starfive_pinctrl_soc_info *)dev_get_driver_data(dev);
+
+	return starfive_pinctrl_probe(dev, info);
+}
+
+static const struct udevice_id jh7110_aon_pinctrl_ids[] = {
+	/* JH7110 aon pinctrl */
+	{ .compatible = "starfive,jh7110-aon-pinctrl",
+	  .data = (ulong)&jh7110_aon_pinctrl_info, },
+	{ /* sentinel */ }
+};
+
+U_BOOT_DRIVER(jh7110_aon_pinctrl) = {
+	.name		= "jh7110-aon-pinctrl",
+	.id		= UCLASS_PINCTRL,
+	.of_match	= jh7110_aon_pinctrl_ids,
+	.priv_auto	= sizeof(struct starfive_pinctrl_priv),
+	.ops		= &starfive_pinctrl_ops,
+	.probe		= jh7110_aon_pinctrl_probe,
+};