This patch adds pinctrl support for MediaTek MT7620 SoC. The MT7620 SoC supports only pinmux.
Reviewed-by: Stefan Roese sr@denx.de Signed-off-by: Weijie Gao weijie.gao@mediatek.com --- v4 changes: none v3 changes: none v2 changes: none --- drivers/pinctrl/mtmips/Kconfig | 9 ++ drivers/pinctrl/mtmips/Makefile | 1 + drivers/pinctrl/mtmips/pinctrl-mt7620.c | 200 ++++++++++++++++++++++++ 3 files changed, 210 insertions(+) create mode 100644 drivers/pinctrl/mtmips/pinctrl-mt7620.c
diff --git a/drivers/pinctrl/mtmips/Kconfig b/drivers/pinctrl/mtmips/Kconfig index 8482a38ebc..844d5b743f 100644 --- a/drivers/pinctrl/mtmips/Kconfig +++ b/drivers/pinctrl/mtmips/Kconfig @@ -3,6 +3,15 @@ config PINCTRL_MTMIPS depends on ARCH_MTMIPS bool
+config PINCTRL_MT7620 + bool "MediaTek MT7620 pin control driver" + select PINCTRL_MTMIPS + depends on SOC_MT7620 && PINCTRL_GENERIC + help + Support pin multiplexing control on MediaTek MT7620. + The driver is controlled by a device tree node which contains + the pin mux functions for each available pin groups. + config PINCTRL_MT7628 bool "MediaTek MT7628 pin control driver" select PINCTRL_MTMIPS diff --git a/drivers/pinctrl/mtmips/Makefile b/drivers/pinctrl/mtmips/Makefile index 3ba5c0c66d..ba945a89a7 100644 --- a/drivers/pinctrl/mtmips/Makefile +++ b/drivers/pinctrl/mtmips/Makefile @@ -4,4 +4,5 @@ obj-$(CONFIG_PINCTRL_MTMIPS) += pinctrl-mtmips-common.o
# SoC Drivers +obj-$(CONFIG_PINCTRL_MT7620) += pinctrl-mt7620.o obj-$(CONFIG_PINCTRL_MT7628) += pinctrl-mt7628.o diff --git a/drivers/pinctrl/mtmips/pinctrl-mt7620.c b/drivers/pinctrl/mtmips/pinctrl-mt7620.c new file mode 100644 index 0000000000..10a4fc6c19 --- /dev/null +++ b/drivers/pinctrl/mtmips/pinctrl-mt7620.c @@ -0,0 +1,200 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao weijie.gao@mediatek.com + */ + +#include <dm.h> +#include <dm/pinctrl.h> +#include <linux/bitops.h> +#include <linux/io.h> + +#include "pinctrl-mtmips-common.h" + +#define SUTIF_SHIFT 30 +#define WDT_RST_SHIFT 21 +#define PA_G_SHIFT 20 +#define NAND_SD_SHIFT 18 +#define PERST_SHIFT 16 +#define EPHY_LED_SHIFT 15 +#define WLED_SHIFT 13 +#define SPI_CS1_SHIFT 12 +#define SPI_SHIFT 11 +#define RGMII2_SHIFT 10 +#define RGMII1_SHIFT 9 +#define MDIO_SHIFT 7 +#define UARTL_SHIFT 5 +#define UARTF_SHIFT 2 +#define I2C_SHIFT 0 + +#define GM4_MASK 3 +#define GM8_MASK 7 + +#if CONFIG_IS_ENABLED(PINMUX) +static const struct mtmips_pmx_func sutif_grp[] = { + FUNC("i2c", 2), + FUNC("uartl", 1), + FUNC("none", 0), +}; + +static const struct mtmips_pmx_func wdt_rst_grp[] = { + FUNC("gpio", 2), + FUNC("refclk", 1), + FUNC("wdt rst", 0), +}; + +static const struct mtmips_pmx_func pa_g_grp[] = { + FUNC("gpio", 1), + FUNC("pa", 0), +}; + +static const struct mtmips_pmx_func nand_sd_grp[] = { + FUNC("gpio", 2), + FUNC("sd", 1), + FUNC("nand", 0), +}; + +static const struct mtmips_pmx_func perst_grp[] = { + FUNC("gpio", 2), + FUNC("refclk", 1), + FUNC("perst", 0), +}; + +static const struct mtmips_pmx_func ephy_led_grp[] = { + FUNC("gpio", 1), + FUNC("led", 0), +}; + +static const struct mtmips_pmx_func wled_grp[] = { + FUNC("gpio", 1), + FUNC("led", 0), +}; + +static const struct mtmips_pmx_func spi_cs1_grp[] = { + FUNC("refclk", 1), + FUNC("spi cs1", 0), +}; + +static const struct mtmips_pmx_func spi_grp[] = { + FUNC("gpio", 1), + FUNC("spi", 0), +}; + +static const struct mtmips_pmx_func rgmii2_grp[] = { + FUNC("gpio", 1), + FUNC("rgmii2", 0), +}; + +static const struct mtmips_pmx_func rgmii1_grp[] = { + FUNC("gpio", 1), + FUNC("rgmii1", 0), +}; + +static const struct mtmips_pmx_func mdio_grp[] = { + FUNC("gpio", 2), + FUNC("refclk", 1), + FUNC("mdio", 0), +}; + +static const struct mtmips_pmx_func uartl_grp[] = { + FUNC("gpio", 1), + FUNC("uartl", 0), +}; + +static const struct mtmips_pmx_func uartf_grp[] = { + FUNC("gpio", 7), + FUNC("i2s gpio", 6), + FUNC("uartf gpio", 5), + FUNC("gpio pcm", 4), + FUNC("i2s uartf", 3), + FUNC("i2s pcm", 2), + FUNC("uartf pcm", 1), + FUNC("uartf", 0), +}; + +static const struct mtmips_pmx_func i2c_grp[] = { + FUNC("gpio", 1), + FUNC("i2c", 0), +}; + +static const struct mtmips_pmx_group mt7620_pinmux_data[] = { + GRP("sutif", sutif_grp, 0, SUTIF_SHIFT, GM4_MASK), + GRP("wdt rst", wdt_rst_grp, 0, WDT_RST_SHIFT, GM4_MASK), + GRP("pa", pa_g_grp, 0, PA_G_SHIFT, 1), + GRP("nand", nand_sd_grp, 0, NAND_SD_SHIFT, GM4_MASK), + GRP("perst", perst_grp, 0, PERST_SHIFT, GM4_MASK), + GRP("ephy led", ephy_led_grp, 0, EPHY_LED_SHIFT, 1), + GRP("wled", wled_grp, 0, WLED_SHIFT, 1), + GRP("spi cs1", spi_cs1_grp, 0, SPI_CS1_SHIFT, 1), + GRP("spi", spi_grp, 0, SPI_SHIFT, 1), + GRP("rgmii2", rgmii2_grp, 0, RGMII2_SHIFT, 1), + GRP("rgmii1", rgmii1_grp, 0, RGMII1_SHIFT, 1), + GRP("mdio", mdio_grp, 0, MDIO_SHIFT, GM4_MASK), + GRP("uartl", uartl_grp, 0, UARTL_SHIFT, 1), + GRP("uartf", uartf_grp, 0, UARTF_SHIFT, GM8_MASK), + GRP("i2c", i2c_grp, 0, I2C_SHIFT, 1), +}; + +static int mt7620_get_groups_count(struct udevice *dev) +{ + return ARRAY_SIZE(mt7620_pinmux_data); +} + +static const char *mt7620_get_group_name(struct udevice *dev, + unsigned int selector) +{ + return mt7620_pinmux_data[selector].name; +} +#endif /* CONFIG_IS_ENABLED(PINMUX) */ + +static int mt7620_pinctrl_probe(struct udevice *dev) +{ + struct mtmips_pinctrl_priv *priv = dev_get_priv(dev); + int ret = 0; + +#if CONFIG_IS_ENABLED(PINMUX) + ret = mtmips_pinctrl_probe(priv, ARRAY_SIZE(mt7620_pinmux_data), + mt7620_pinmux_data); +#endif /* CONFIG_IS_ENABLED(PINMUX) */ + + return ret; +} + +static int mt7620_pinctrl_ofdata_to_platdata(struct udevice *dev) +{ + struct mtmips_pinctrl_priv *priv = dev_get_priv(dev); + + priv->base = dev_remap_addr_index(dev, 0); + if (!priv->base) + return -EINVAL; + + return 0; +} + +static const struct pinctrl_ops mt7620_pinctrl_ops = { +#if CONFIG_IS_ENABLED(PINMUX) + .get_groups_count = mt7620_get_groups_count, + .get_group_name = mt7620_get_group_name, + .get_functions_count = mtmips_get_functions_count, + .get_function_name = mtmips_get_function_name, + .pinmux_group_set = mtmips_pinmux_group_set, +#endif /* CONFIG_IS_ENABLED(PINMUX) */ + .set_state = pinctrl_generic_set_state, +}; + +static const struct udevice_id mt7620_pinctrl_ids[] = { + { .compatible = "mediatek,mt7620-pinctrl" }, + { } +}; + +U_BOOT_DRIVER(mt7620_pinctrl) = { + .name = "mt7620-pinctrl", + .id = UCLASS_PINCTRL, + .of_match = mt7620_pinctrl_ids, + .ofdata_to_platdata = mt7620_pinctrl_ofdata_to_platdata, + .ops = &mt7620_pinctrl_ops, + .probe = mt7620_pinctrl_probe, + .priv_auto_alloc_size = sizeof(struct mtmips_pinctrl_priv), + .flags = DM_FLAG_PRE_RELOC, +};