--- /dev/null
+// 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_SYS_NGPIO 64
+#define JH7110_SYS_GC_BASE 0
+
+/* registers */
+#define JH7110_SYS_DOEN 0x000
+#define JH7110_SYS_DOUT 0x040
+#define JH7110_SYS_GPI 0x080
+#define JH7110_SYS_GPIOIN 0x118
+
+#define JH7110_SYS_GPIOEN 0x0dc
+#define JH7110_SYS_GPIOIS0 0x0e0
+#define JH7110_SYS_GPIOIS1 0x0e4
+#define JH7110_SYS_GPIOIC0 0x0e8
+#define JH7110_SYS_GPIOIC1 0x0ec
+#define JH7110_SYS_GPIOIBE0 0x0f0
+#define JH7110_SYS_GPIOIBE1 0x0f4
+#define JH7110_SYS_GPIOIEV0 0x0f8
+#define JH7110_SYS_GPIOIEV1 0x0fc
+#define JH7110_SYS_GPIOIE0 0x100
+#define JH7110_SYS_GPIOIE1 0x104
+#define JH7110_SYS_GPIORIS0 0x108
+#define JH7110_SYS_GPIORIS1 0x10c
+#define JH7110_SYS_GPIOMIS0 0x110
+#define JH7110_SYS_GPIOMIS1 0x114
+
+#define SYS_GPO_PDA_0_74_CFG 0x120
+#define SYS_GPO_PDA_89_94_CFG 0x284
+
+static const struct starfive_pinctrl_pin jh7110_sys_pins[] = {
+ STARFIVE_PINCTRL(PAD_GPIO0, "GPIO0"),
+ STARFIVE_PINCTRL(PAD_GPIO1, "GPIO1"),
+ STARFIVE_PINCTRL(PAD_GPIO2, "GPIO2"),
+ STARFIVE_PINCTRL(PAD_GPIO3, "GPIO3"),
+ STARFIVE_PINCTRL(PAD_GPIO4, "GPIO4"),
+ STARFIVE_PINCTRL(PAD_GPIO5, "GPIO5"),
+ STARFIVE_PINCTRL(PAD_GPIO6, "GPIO6"),
+ STARFIVE_PINCTRL(PAD_GPIO7, "GPIO7"),
+ STARFIVE_PINCTRL(PAD_GPIO8, "GPIO8"),
+ STARFIVE_PINCTRL(PAD_GPIO9, "GPIO9"),
+ STARFIVE_PINCTRL(PAD_GPIO10, "GPIO10"),
+ STARFIVE_PINCTRL(PAD_GPIO11, "GPIO11"),
+ STARFIVE_PINCTRL(PAD_GPIO12, "GPIO12"),
+ STARFIVE_PINCTRL(PAD_GPIO13, "GPIO13"),
+ STARFIVE_PINCTRL(PAD_GPIO14, "GPIO14"),
+ STARFIVE_PINCTRL(PAD_GPIO15, "GPIO15"),
+ STARFIVE_PINCTRL(PAD_GPIO16, "GPIO16"),
+ STARFIVE_PINCTRL(PAD_GPIO17, "GPIO17"),
+ STARFIVE_PINCTRL(PAD_GPIO18, "GPIO18"),
+ STARFIVE_PINCTRL(PAD_GPIO19, "GPIO19"),
+ STARFIVE_PINCTRL(PAD_GPIO20, "GPIO20"),
+ STARFIVE_PINCTRL(PAD_GPIO21, "GPIO21"),
+ STARFIVE_PINCTRL(PAD_GPIO22, "GPIO22"),
+ STARFIVE_PINCTRL(PAD_GPIO23, "GPIO23"),
+ STARFIVE_PINCTRL(PAD_GPIO24, "GPIO24"),
+ STARFIVE_PINCTRL(PAD_GPIO25, "GPIO25"),
+ STARFIVE_PINCTRL(PAD_GPIO26, "GPIO26"),
+ STARFIVE_PINCTRL(PAD_GPIO27, "GPIO27"),
+ STARFIVE_PINCTRL(PAD_GPIO28, "GPIO28"),
+ STARFIVE_PINCTRL(PAD_GPIO29, "GPIO29"),
+ STARFIVE_PINCTRL(PAD_GPIO30, "GPIO30"),
+ STARFIVE_PINCTRL(PAD_GPIO31, "GPIO31"),
+ STARFIVE_PINCTRL(PAD_GPIO32, "GPIO32"),
+ STARFIVE_PINCTRL(PAD_GPIO33, "GPIO33"),
+ STARFIVE_PINCTRL(PAD_GPIO34, "GPIO34"),
+ STARFIVE_PINCTRL(PAD_GPIO35, "GPIO35"),
+ STARFIVE_PINCTRL(PAD_GPIO36, "GPIO36"),
+ STARFIVE_PINCTRL(PAD_GPIO37, "GPIO37"),
+ STARFIVE_PINCTRL(PAD_GPIO38, "GPIO38"),
+ STARFIVE_PINCTRL(PAD_GPIO39, "GPIO39"),
+ STARFIVE_PINCTRL(PAD_GPIO40, "GPIO40"),
+ STARFIVE_PINCTRL(PAD_GPIO41, "GPIO41"),
+ STARFIVE_PINCTRL(PAD_GPIO42, "GPIO42"),
+ STARFIVE_PINCTRL(PAD_GPIO43, "GPIO43"),
+ STARFIVE_PINCTRL(PAD_GPIO44, "GPIO44"),
+ STARFIVE_PINCTRL(PAD_GPIO45, "GPIO45"),
+ STARFIVE_PINCTRL(PAD_GPIO46, "GPIO46"),
+ STARFIVE_PINCTRL(PAD_GPIO47, "GPIO47"),
+ STARFIVE_PINCTRL(PAD_GPIO48, "GPIO48"),
+ STARFIVE_PINCTRL(PAD_GPIO49, "GPIO49"),
+ STARFIVE_PINCTRL(PAD_GPIO50, "GPIO50"),
+ STARFIVE_PINCTRL(PAD_GPIO51, "GPIO51"),
+ STARFIVE_PINCTRL(PAD_GPIO52, "GPIO52"),
+ STARFIVE_PINCTRL(PAD_GPIO53, "GPIO53"),
+ STARFIVE_PINCTRL(PAD_GPIO54, "GPIO54"),
+ STARFIVE_PINCTRL(PAD_GPIO55, "GPIO55"),
+ STARFIVE_PINCTRL(PAD_GPIO56, "GPIO56"),
+ STARFIVE_PINCTRL(PAD_GPIO57, "GPIO57"),
+ STARFIVE_PINCTRL(PAD_GPIO58, "GPIO58"),
+ STARFIVE_PINCTRL(PAD_GPIO59, "GPIO59"),
+ STARFIVE_PINCTRL(PAD_GPIO60, "GPIO60"),
+ STARFIVE_PINCTRL(PAD_GPIO61, "GPIO61"),
+ STARFIVE_PINCTRL(PAD_GPIO62, "GPIO62"),
+ STARFIVE_PINCTRL(PAD_GPIO63, "GPIO63"),
+ STARFIVE_PINCTRL(PAD_SD0_CLK, "SD0_CLK"),
+ STARFIVE_PINCTRL(PAD_SD0_CMD, "SD0_CMD"),
+ STARFIVE_PINCTRL(PAD_SD0_DATA0, "SD0_DATA0"),
+ STARFIVE_PINCTRL(PAD_SD0_DATA1, "SD0_DATA1"),
+ STARFIVE_PINCTRL(PAD_SD0_DATA2, "SD0_DATA2"),
+ STARFIVE_PINCTRL(PAD_SD0_DATA3, "SD0_DATA3"),
+ STARFIVE_PINCTRL(PAD_SD0_DATA4, "SD0_DATA4"),
+ STARFIVE_PINCTRL(PAD_SD0_DATA5, "SD0_DATA5"),
+ STARFIVE_PINCTRL(PAD_SD0_DATA6, "SD0_DATA6"),
+ STARFIVE_PINCTRL(PAD_SD0_DATA7, "SD0_DATA7"),
+ STARFIVE_PINCTRL(PAD_SD0_STRB, "SD0_STRB"),
+ STARFIVE_PINCTRL(PAD_GMAC1_MDC, "GMAC1_MDC"),
+ STARFIVE_PINCTRL(PAD_GMAC1_MDIO, "GMAC1_MDIO"),
+ STARFIVE_PINCTRL(PAD_GMAC1_RXD0, "GMAC1_RXD0"),
+ STARFIVE_PINCTRL(PAD_GMAC1_RXD1, "GMAC1_RXD1"),
+ STARFIVE_PINCTRL(PAD_GMAC1_RXD2, "GMAC1_RXD2"),
+ STARFIVE_PINCTRL(PAD_GMAC1_RXD3, "GMAC1_RXD3"),
+ STARFIVE_PINCTRL(PAD_GMAC1_RXDV, "GMAC1_RXDV"),
+ STARFIVE_PINCTRL(PAD_GMAC1_RXC, "GMAC1_RXC"),
+ STARFIVE_PINCTRL(PAD_GMAC1_TXD0, "GMAC1_TXD0"),
+ STARFIVE_PINCTRL(PAD_GMAC1_TXD1, "GMAC1_TXD1"),
+ STARFIVE_PINCTRL(PAD_GMAC1_TXD2, "GMAC1_TXD2"),
+ STARFIVE_PINCTRL(PAD_GMAC1_TXD3, "GMAC1_TXD3"),
+ STARFIVE_PINCTRL(PAD_GMAC1_TXEN, "GMAC1_TXEN"),
+ STARFIVE_PINCTRL(PAD_GMAC1_TXC, "GMAC1_TXC"),
+ STARFIVE_PINCTRL(PAD_QSPI_SCLK, "QSPI_SCLK"),
+ STARFIVE_PINCTRL(PAD_QSPI_CS0, "QSPI_CS0"),
+ STARFIVE_PINCTRL(PAD_QSPI_DATA0, "QSPI_DATA0"),
+ STARFIVE_PINCTRL(PAD_QSPI_DATA1, "QSPI_DATA1"),
+ STARFIVE_PINCTRL(PAD_QSPI_DATA2, "QSPI_DATA2"),
+ STARFIVE_PINCTRL(PAD_QSPI_DATA3, "QSPI_DATA3"),
+};
+
+struct jh7110_func_sel {
+ u16 offset;
+ u8 shift;
+ u8 max;
+};
+
+static const struct jh7110_func_sel
+ jh7110_sys_func_sel[ARRAY_SIZE(jh7110_sys_pins)] = {
+ [PAD_GMAC1_RXC] = { 0x29c, 0, 1 },
+ [PAD_GPIO10] = { 0x29c, 2, 3 },
+ [PAD_GPIO11] = { 0x29c, 5, 3 },
+ [PAD_GPIO12] = { 0x29c, 8, 3 },
+ [PAD_GPIO13] = { 0x29c, 11, 3 },
+ [PAD_GPIO14] = { 0x29c, 14, 3 },
+ [PAD_GPIO15] = { 0x29c, 17, 3 },
+ [PAD_GPIO16] = { 0x29c, 20, 3 },
+ [PAD_GPIO17] = { 0x29c, 23, 3 },
+ [PAD_GPIO18] = { 0x29c, 26, 3 },
+ [PAD_GPIO19] = { 0x29c, 29, 3 },
+
+ [PAD_GPIO20] = { 0x2a0, 0, 3 },
+ [PAD_GPIO21] = { 0x2a0, 3, 3 },
+ [PAD_GPIO22] = { 0x2a0, 6, 3 },
+ [PAD_GPIO23] = { 0x2a0, 9, 3 },
+ [PAD_GPIO24] = { 0x2a0, 12, 3 },
+ [PAD_GPIO25] = { 0x2a0, 15, 3 },
+ [PAD_GPIO26] = { 0x2a0, 18, 3 },
+ [PAD_GPIO27] = { 0x2a0, 21, 3 },
+ [PAD_GPIO28] = { 0x2a0, 24, 3 },
+ [PAD_GPIO29] = { 0x2a0, 27, 3 },
+
+ [PAD_GPIO30] = { 0x2a4, 0, 3 },
+ [PAD_GPIO31] = { 0x2a4, 3, 3 },
+ [PAD_GPIO32] = { 0x2a4, 6, 3 },
+ [PAD_GPIO33] = { 0x2a4, 9, 3 },
+ [PAD_GPIO34] = { 0x2a4, 12, 3 },
+ [PAD_GPIO35] = { 0x2a4, 15, 3 },
+ [PAD_GPIO36] = { 0x2a4, 17, 3 },
+ [PAD_GPIO37] = { 0x2a4, 20, 3 },
+ [PAD_GPIO38] = { 0x2a4, 23, 3 },
+ [PAD_GPIO39] = { 0x2a4, 26, 3 },
+ [PAD_GPIO40] = { 0x2a4, 29, 3 },
+
+ [PAD_GPIO41] = { 0x2a8, 0, 3 },
+ [PAD_GPIO42] = { 0x2a8, 3, 3 },
+ [PAD_GPIO43] = { 0x2a8, 6, 3 },
+ [PAD_GPIO44] = { 0x2a8, 9, 3 },
+ [PAD_GPIO45] = { 0x2a8, 12, 3 },
+ [PAD_GPIO46] = { 0x2a8, 15, 3 },
+ [PAD_GPIO47] = { 0x2a8, 18, 3 },
+ [PAD_GPIO48] = { 0x2a8, 21, 3 },
+ [PAD_GPIO49] = { 0x2a8, 24, 3 },
+ [PAD_GPIO50] = { 0x2a8, 27, 3 },
+ [PAD_GPIO51] = { 0x2a8, 30, 3 },
+
+ [PAD_GPIO52] = { 0x2ac, 0, 3 },
+ [PAD_GPIO53] = { 0x2ac, 2, 3 },
+ [PAD_GPIO54] = { 0x2ac, 4, 3 },
+ [PAD_GPIO55] = { 0x2ac, 6, 3 },
+ [PAD_GPIO56] = { 0x2ac, 9, 3 },
+ [PAD_GPIO57] = { 0x2ac, 12, 3 },
+ [PAD_GPIO58] = { 0x2ac, 15, 3 },
+ [PAD_GPIO59] = { 0x2ac, 18, 3 },
+ [PAD_GPIO60] = { 0x2ac, 21, 3 },
+ [PAD_GPIO61] = { 0x2ac, 24, 3 },
+ [PAD_GPIO62] = { 0x2ac, 27, 3 },
+ [PAD_GPIO63] = { 0x2ac, 30, 3 },
+
+ [PAD_GPIO6] = { 0x2b0, 0, 3 },
+ [PAD_GPIO7] = { 0x2b0, 2, 3 },
+ [PAD_GPIO8] = { 0x2b0, 5, 3 },
+ [PAD_GPIO9] = { 0x2b0, 8, 3 },
+};
+
+struct jh7110_vin_group_sel {
+ u16 offset;
+ u8 shift;
+ u8 group;
+};
+
+static const struct jh7110_vin_group_sel
+ jh7110_sys_vin_group_sel[ARRAY_SIZE(jh7110_sys_pins)] = {
+ [PAD_GPIO6] = { 0x2b4, 21, 0 },
+ [PAD_GPIO7] = { 0x2b4, 18, 0 },
+ [PAD_GPIO8] = { 0x2b4, 15, 0 },
+ [PAD_GPIO9] = { 0x2b0, 11, 0 },
+ [PAD_GPIO10] = { 0x2b0, 20, 0 },
+ [PAD_GPIO11] = { 0x2b0, 23, 0 },
+ [PAD_GPIO12] = { 0x2b0, 26, 0 },
+ [PAD_GPIO13] = { 0x2b0, 29, 0 },
+ [PAD_GPIO14] = { 0x2b4, 0, 0 },
+ [PAD_GPIO15] = { 0x2b4, 3, 0 },
+ [PAD_GPIO16] = { 0x2b4, 6, 0 },
+ [PAD_GPIO17] = { 0x2b4, 9, 0 },
+ [PAD_GPIO18] = { 0x2b4, 12, 0 },
+ [PAD_GPIO19] = { 0x2b0, 14, 0 },
+ [PAD_GPIO20] = { 0x2b0, 17, 0 },
+
+ [PAD_GPIO21] = { 0x2b4, 21, 1 },
+ [PAD_GPIO22] = { 0x2b4, 18, 1 },
+ [PAD_GPIO23] = { 0x2b4, 15, 1 },
+ [PAD_GPIO24] = { 0x2b0, 11, 1 },
+ [PAD_GPIO25] = { 0x2b0, 20, 1 },
+ [PAD_GPIO26] = { 0x2b0, 23, 1 },
+ [PAD_GPIO27] = { 0x2b0, 26, 1 },
+ [PAD_GPIO28] = { 0x2b0, 29, 1 },
+ [PAD_GPIO29] = { 0x2b4, 0, 1 },
+ [PAD_GPIO30] = { 0x2b4, 3, 1 },
+ [PAD_GPIO31] = { 0x2b4, 6, 1 },
+ [PAD_GPIO32] = { 0x2b4, 9, 1 },
+ [PAD_GPIO33] = { 0x2b4, 12, 1 },
+ [PAD_GPIO34] = { 0x2b0, 14, 1 },
+ [PAD_GPIO35] = { 0x2b0, 17, 1 },
+
+ [PAD_GPIO36] = { 0x2b4, 21, 2 },
+ [PAD_GPIO37] = { 0x2b4, 18, 2 },
+ [PAD_GPIO38] = { 0x2b4, 15, 2 },
+ [PAD_GPIO39] = { 0x2b0, 11, 2 },
+ [PAD_GPIO40] = { 0x2b0, 20, 2 },
+ [PAD_GPIO41] = { 0x2b0, 23, 2 },
+ [PAD_GPIO42] = { 0x2b0, 26, 2 },
+ [PAD_GPIO43] = { 0x2b0, 29, 2 },
+ [PAD_GPIO44] = { 0x2b4, 0, 2 },
+ [PAD_GPIO45] = { 0x2b4, 3, 2 },
+ [PAD_GPIO46] = { 0x2b4, 6, 2 },
+ [PAD_GPIO47] = { 0x2b4, 9, 2 },
+ [PAD_GPIO48] = { 0x2b4, 12, 2 },
+ [PAD_GPIO49] = { 0x2b0, 14, 2 },
+ [PAD_GPIO50] = { 0x2b0, 17, 2 },
+};
+
+static void jh7110_set_function(struct udevice *dev,
+ unsigned int pin, u32 func)
+{
+ const struct jh7110_func_sel *fs = &jh7110_sys_func_sel[pin];
+ struct starfive_pinctrl_priv *priv = dev_get_priv(dev);
+ void __iomem *reg;
+ u32 mask;
+
+ if (!fs->offset)
+ return;
+
+ if (func > fs->max)
+ return;
+
+ reg = priv->base + fs->offset;
+ func = func << fs->shift;
+ mask = 0x3U << fs->shift;
+
+ func |= readl(reg) & ~mask;
+ writel(func, reg);
+}
+
+static void jh7110_set_vin_group(struct udevice *dev, unsigned int pin)
+{
+ const struct jh7110_vin_group_sel *gs =
+ &jh7110_sys_vin_group_sel[pin];
+ struct starfive_pinctrl_priv *priv = dev_get_priv(dev);
+ void __iomem *reg;
+ u32 mask;
+ u32 grp;
+
+ if (!gs->offset)
+ return;
+
+ reg = priv->base + gs->offset;
+ grp = gs->group << gs->shift;
+ mask = 0x3U << gs->shift;
+
+ grp |= readl(reg) & ~mask;
+ writel(grp, reg);
+}
+
+static int jh7110_sys_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);
+
+ jh7110_set_function(dev, pin, func);
+
+ if (pin < priv->info->ngpios && func == 2)
+ jh7110_set_vin_group(dev, pin);
+
+ return 0;
+}
+
+static int jh7110_sys_get_padcfg_base(struct udevice *dev,
+ unsigned int pin)
+{
+ if (pin < PAD_GMAC1_MDC)
+ return SYS_GPO_PDA_0_74_CFG;
+ else if (pin > PAD_GMAC1_TXC && pin <= PAD_QSPI_DATA3)
+ return SYS_GPO_PDA_89_94_CFG;
+ else
+ return -1;
+}
+
+static void jh7110_sys_init_hw(struct udevice *dev)
+{
+ struct starfive_pinctrl_priv *priv = dev_get_priv(dev);
+
+ /* mask all GPIO interrupts */
+ writel(0U, priv->base + JH7110_SYS_GPIOIE0);
+ writel(0U, priv->base + JH7110_SYS_GPIOIE1);
+ /* clear edge interrupt flags */
+ writel(~0U, priv->base + JH7110_SYS_GPIOIC0);
+ writel(~0U, priv->base + JH7110_SYS_GPIOIC1);
+ /* enable GPIO interrupts */
+ writel(1U, priv->base + JH7110_SYS_GPIOEN);
+}
+
+const struct starfive_pinctrl_soc_info jh7110_sys_pinctrl_info = {
+ /* pin conf */
+ .set_one_pinmux = jh7110_sys_set_one_pin_mux,
+ .get_padcfg_base = jh7110_sys_get_padcfg_base,
+
+ /* gpio dout/doen/din/gpioinput register */
+ .dout_reg_base = JH7110_SYS_DOUT,
+ .dout_mask = GENMASK(6, 0),
+ .doen_reg_base = JH7110_SYS_DOEN,
+ .doen_mask = GENMASK(5, 0),
+ .gpi_reg_base = JH7110_SYS_GPI,
+ .gpi_mask = GENMASK(6, 0),
+ .gpioin_reg_base = JH7110_SYS_GPIOIN,
+
+ /* gpio */
+ .gpio_bank_name = "GPIO",
+ .ngpios = JH7110_SYS_NGPIO,
+ .gpio_init_hw = jh7110_sys_init_hw,
+};
+
+static int jh7110_sys_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_sys_pinctrl_ids[] = {
+ /* JH7110 sys pinctrl */
+ { .compatible = "starfive,jh7110-sys-pinctrl",
+ .data = (ulong)&jh7110_sys_pinctrl_info, },
+ { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(jh7110_sys_pinctrl) = {
+ .name = "jh7110-sys-pinctrl",
+ .id = UCLASS_PINCTRL,
+ .of_match = jh7110_sys_pinctrl_ids,
+ .priv_auto = sizeof(struct starfive_pinctrl_priv),
+ .ops = &starfive_pinctrl_ops,
+ .probe = jh7110_sys_pinctrl_probe,
+};
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Pinctrl / GPIO driver for StarFive JH7100 SoC
+ *
+ * Copyright (C) 2022 Shanghai StarFive Technology Co., Ltd.
+ * Author: Lee Kuan Lim <kuanlim.lee@starfivetech.com>
+ * Author: Jianlong Huang <jianlong.huang@starfivetech.com>
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <dm/device-internal.h>
+#include <dm/lists.h>
+#include <dm/pinctrl.h>
+#include <asm-generic/gpio.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <dm/device_compat.h>
+#include <dt-bindings/pinctrl/pinctrl-starfive-jh7110.h>
+
+#include "pinctrl-starfive.h"
+
+/* pad control bits */
+#define STARFIVE_PADCFG_POS BIT(7)
+#define STARFIVE_PADCFG_SMT BIT(6)
+#define STARFIVE_PADCFG_SLEW BIT(5)
+#define STARFIVE_PADCFG_PD BIT(4)
+#define STARFIVE_PADCFG_PU BIT(3)
+#define STARFIVE_PADCFG_BIAS (STARFIVE_PADCFG_PD | STARFIVE_PADCFG_PU)
+#define STARFIVE_PADCFG_DS_MASK GENMASK(2, 1)
+#define STARFIVE_PADCFG_DS_2MA (0U << 1)
+#define STARFIVE_PADCFG_DS_4MA BIT(1)
+#define STARFIVE_PADCFG_DS_8MA (2U << 1)
+#define STARFIVE_PADCFG_DS_12MA (3U << 1)
+#define STARFIVE_PADCFG_IE BIT(0)
+#define GPIO_NUM_PER_WORD 32
+
+/*
+ * The packed pinmux values from the device tree look like this:
+ *
+ * | 31 - 24 | 23 - 16 | 15 - 10 | 9 - 8 | 7 - 0 |
+ * | din | dout | doen | function | pin |
+ */
+static unsigned int starfive_pinmux_din(u32 v)
+{
+ return (v & GENMASK(31, 24)) >> 24;
+}
+
+static u32 starfive_pinmux_dout(u32 v)
+{
+ return (v & GENMASK(23, 16)) >> 16;
+}
+
+static u32 starfive_pinmux_doen(u32 v)
+{
+ return (v & GENMASK(15, 10)) >> 10;
+}
+
+static u32 starfive_pinmux_function(u32 v)
+{
+ return (v & GENMASK(9, 8)) >> 8;
+}
+
+static unsigned int starfive_pinmux_pin(u32 v)
+{
+ return v & GENMASK(7, 0);
+}
+
+void starfive_set_gpiomux(struct udevice *dev, unsigned int pin,
+ unsigned int din, u32 dout, u32 doen)
+{
+ struct starfive_pinctrl_priv *priv = dev_get_priv(dev);
+ const struct starfive_pinctrl_soc_info *info = priv->info;
+
+ unsigned int offset = 4 * (pin / 4);
+ unsigned int shift = 8 * (pin % 4);
+ u32 dout_mask = info->dout_mask << shift;
+ u32 done_mask = info->doen_mask << shift;
+ u32 ival, imask;
+ void __iomem *reg_dout;
+ void __iomem *reg_doen;
+ void __iomem *reg_din;
+
+ reg_dout = priv->base + info->dout_reg_base + offset;
+ reg_doen = priv->base + info->doen_reg_base + offset;
+ dout <<= shift;
+ doen <<= shift;
+ if (din != GPI_NONE) {
+ unsigned int ioffset = 4 * (din / 4);
+ unsigned int ishift = 8 * (din % 4);
+
+ reg_din = priv->base + info->gpi_reg_base + ioffset;
+ ival = (pin + 2) << ishift;
+ imask = info->gpi_mask << ishift;
+ } else {
+ reg_din = NULL;
+ }
+
+ dout |= readl(reg_dout) & ~dout_mask;
+ writel(dout, reg_dout);
+ doen |= readl(reg_doen) & ~done_mask;
+ writel(doen, reg_doen);
+ if (reg_din) {
+ ival |= readl(reg_din) & ~imask;
+ writel(ival, reg_din);
+ }
+}
+
+static const struct pinconf_param starfive_pinconf_params[] = {
+ { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
+ { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
+ { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
+ { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 },
+ { "input-schmitt-enable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 1 },
+ { "input-schmitt-disable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 0 },
+ { "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 },
+ { "input-disable", PIN_CONFIG_INPUT_ENABLE, 0 },
+ { "slew-rate", PIN_CONFIG_SLEW_RATE, 0 },
+};
+
+static const u8 starfive_drive_strength_mA[4] = { 2, 4, 8, 12 };
+
+static u32 starfive_padcfg_ds_from_mA(u32 v)
+{
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ if (v <= starfive_drive_strength_mA[i])
+ break;
+ }
+ return i << 1;
+}
+
+static void starfive_padcfg_rmw(struct udevice *dev,
+ unsigned int pin, u32 mask, u32 value)
+{
+ struct starfive_pinctrl_priv *priv = dev_get_priv(dev);
+ struct starfive_pinctrl_soc_info *info = priv->info;
+ void __iomem *reg;
+ int padcfg_base;
+
+ if (!info->get_padcfg_base)
+ return;
+
+ padcfg_base = info->get_padcfg_base(dev, pin);
+ if (padcfg_base < 0)
+ return;
+
+ reg = priv->base + padcfg_base + 4 * pin;
+ value &= mask;
+
+ value |= readl(reg) & ~mask;
+ writel(value, reg);
+}
+
+static int starfive_pinconf_set(struct udevice *dev, unsigned int pin,
+ unsigned int param, unsigned int arg)
+{
+ u16 mask = 0;
+ u16 value = 0;
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ mask |= STARFIVE_PADCFG_BIAS;
+ value &= ~STARFIVE_PADCFG_BIAS;
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ if (arg == 0)
+ return -EINVAL;
+ mask |= STARFIVE_PADCFG_BIAS;
+ value = (value & ~STARFIVE_PADCFG_BIAS) | STARFIVE_PADCFG_PD;
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ if (arg == 0)
+ return -EINVAL;
+ mask |= STARFIVE_PADCFG_BIAS;
+ value = (value & ~STARFIVE_PADCFG_BIAS) | STARFIVE_PADCFG_PU;
+ break;
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ mask |= STARFIVE_PADCFG_DS_MASK;
+ value = (value & ~STARFIVE_PADCFG_DS_MASK) |
+ starfive_padcfg_ds_from_mA(arg);
+ break;
+ case PIN_CONFIG_INPUT_ENABLE:
+ mask |= STARFIVE_PADCFG_IE;
+ if (arg)
+ value |= STARFIVE_PADCFG_IE;
+ else
+ value &= ~STARFIVE_PADCFG_IE;
+ break;
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ mask |= STARFIVE_PADCFG_SMT;
+ if (arg)
+ value |= STARFIVE_PADCFG_SMT;
+ else
+ value &= ~STARFIVE_PADCFG_SMT;
+ break;
+ case PIN_CONFIG_SLEW_RATE:
+ mask |= STARFIVE_PADCFG_SLEW;
+ if (arg)
+ value |= STARFIVE_PADCFG_SLEW;
+ else
+ value &= ~STARFIVE_PADCFG_SLEW;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ starfive_padcfg_rmw(dev, pin, mask, value);
+
+ return 0;
+}
+
+static int starfive_property_set(struct udevice *dev, u32 pinmux_group)
+{
+ struct starfive_pinctrl_priv *priv = dev_get_priv(dev);
+ struct starfive_pinctrl_soc_info *info = priv->info;
+
+ if (info->set_one_pinmux)
+ info->set_one_pinmux(dev,
+ starfive_pinmux_pin(pinmux_group),
+ starfive_pinmux_din(pinmux_group),
+ starfive_pinmux_dout(pinmux_group),
+ starfive_pinmux_doen(pinmux_group),
+ starfive_pinmux_function(pinmux_group));
+
+ return starfive_pinmux_pin(pinmux_group);
+}
+
+const struct pinctrl_ops starfive_pinctrl_ops = {
+ .set_state = pinctrl_generic_set_state,
+ .pinconf_num_params = ARRAY_SIZE(starfive_pinconf_params),
+ .pinconf_params = starfive_pinconf_params,
+ .pinconf_set = starfive_pinconf_set,
+ .pinmux_property_set = starfive_property_set,
+};
+
+static int starfive_gpio_get_direction(struct udevice *dev, unsigned int off)
+{
+ struct udevice *pdev = dev->parent;
+ struct starfive_pinctrl_priv *priv = dev_get_priv(pdev);
+ struct starfive_pinctrl_soc_info *info = priv->info;
+
+ unsigned int offset = 4 * (off / 4);
+ unsigned int shift = 8 * (off % 4);
+ u32 doen = readl(priv->base + info->doen_reg_base + offset);
+
+ doen = (doen >> shift) & info->doen_mask;
+
+ return doen == GPOEN_ENABLE ? GPIOF_OUTPUT : GPIOF_INPUT;
+}
+
+static int starfive_gpio_direction_input(struct udevice *dev, unsigned int off)
+{
+ struct udevice *pdev = dev->parent;
+ struct starfive_pinctrl_priv *priv = dev_get_priv(pdev);
+ struct starfive_pinctrl_soc_info *info = priv->info;
+
+ /* enable input and schmitt trigger */
+ starfive_padcfg_rmw(pdev, off,
+ STARFIVE_PADCFG_IE | STARFIVE_PADCFG_SMT,
+ STARFIVE_PADCFG_IE | STARFIVE_PADCFG_SMT);
+
+ if (info->set_one_pinmux)
+ info->set_one_pinmux(pdev, off,
+ GPI_NONE, GPOUT_LOW, GPOEN_DISABLE, 0);
+
+ return 0;
+}
+
+static int starfive_gpio_direction_output(struct udevice *dev,
+ unsigned int off, int val)
+{
+ struct udevice *pdev = dev->parent;
+ struct starfive_pinctrl_priv *priv = dev_get_priv(pdev);
+ struct starfive_pinctrl_soc_info *info = priv->info;
+
+ if (info->set_one_pinmux)
+ info->set_one_pinmux(pdev, off,
+ GPI_NONE, val ? GPOUT_HIGH : GPOUT_LOW,
+ GPOEN_ENABLE, 0);
+
+ /* disable input, schmitt trigger and bias */
+ starfive_padcfg_rmw(pdev, off,
+ STARFIVE_PADCFG_IE | STARFIVE_PADCFG_SMT
+ | STARFIVE_PADCFG_BIAS,
+ 0);
+
+ return 0;
+}
+
+static int starfive_gpio_get_value(struct udevice *dev, unsigned int off)
+{
+ struct udevice *pdev = dev->parent;
+ struct starfive_pinctrl_priv *priv = dev_get_priv(pdev);
+ struct starfive_pinctrl_soc_info *info = priv->info;
+
+ void __iomem *reg = priv->base + info->gpioin_reg_base
+ + 4 * (off / GPIO_NUM_PER_WORD);
+
+ return !!(readl(reg) & BIT(off % GPIO_NUM_PER_WORD));
+}
+
+static int starfive_gpio_set_value(struct udevice *dev,
+ unsigned int off, int val)
+{
+ struct udevice *pdev = dev->parent;
+ struct starfive_pinctrl_priv *priv = dev_get_priv(pdev);
+ struct starfive_pinctrl_soc_info *info = priv->info;
+
+ unsigned int offset = 4 * (off / 4);
+ unsigned int shift = 8 * (off % 4);
+ void __iomem *reg_dout = priv->base + info->dout_reg_base + offset;
+ u32 dout = (val ? GPOUT_HIGH : GPOUT_LOW) << shift;
+ u32 mask = info->dout_mask << shift;
+
+ dout |= readl(reg_dout) & ~mask;
+ writel(dout, reg_dout);
+
+ return 0;
+}
+
+static int starfive_gpio_probe(struct udevice *dev)
+{
+ struct gpio_dev_priv *uc_priv;
+ struct udevice *pdev = dev->parent;
+ struct starfive_pinctrl_priv *priv = dev_get_priv(pdev);
+ struct starfive_pinctrl_soc_info *info = priv->info;
+
+ uc_priv = dev_get_uclass_priv(dev);
+ uc_priv->bank_name = info->gpio_bank_name;
+ uc_priv->gpio_count = info->ngpios;
+
+ if (!info->gpio_init_hw)
+ return -ENXIO;
+
+ info->gpio_init_hw(pdev);
+
+ return 0;
+}
+
+static const struct dm_gpio_ops starfive_gpio_ops = {
+ .get_function = starfive_gpio_get_direction,
+ .direction_input = starfive_gpio_direction_input,
+ .direction_output = starfive_gpio_direction_output,
+ .get_value = starfive_gpio_get_value,
+ .set_value = starfive_gpio_set_value,
+};
+
+static struct driver starfive_gpio_driver = {
+ .name = "starfive_gpio",
+ .id = UCLASS_GPIO,
+ .probe = starfive_gpio_probe,
+ .ops = &starfive_gpio_ops,
+};
+
+static int starfive_gpiochip_register(struct udevice *parent)
+{
+ struct uclass_driver *drv;
+ struct udevice *dev;
+ int ret;
+ ofnode node;
+
+ drv = lists_uclass_lookup(UCLASS_GPIO);
+ if (!drv)
+ return -ENOENT;
+
+ node = dev_ofnode(parent);
+ ret = device_bind_with_driver_data(parent, &starfive_gpio_driver,
+ "starfive_gpio", 0, node, &dev);
+
+ return (ret == 0) ? 0 : ret;
+}
+
+int starfive_pinctrl_probe(struct udevice *dev,
+ const struct starfive_pinctrl_soc_info *info)
+{
+ struct starfive_pinctrl_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ /* Bind pinctrl_info from .data to priv */
+ priv->info =
+ (struct starfive_pinctrl_soc_info *)dev_get_driver_data(dev);
+
+ if (!priv->info)
+ return -EINVAL;
+
+ priv->base = dev_read_addr_ptr(dev);
+ if (!priv->base)
+ return -EINVAL;
+
+ /* gpiochip register */
+ ret = starfive_gpiochip_register(dev);
+
+ return (ret == 0) ? 0 : ret;
+}
projects / u-boot.git / commitdiff