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a9a3a3aafc
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>
200 lines
4.6 KiB
C
200 lines
4.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2020 MediaTek Inc. All Rights Reserved.
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*
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* Author: Weijie Gao <weijie.gao@mediatek.com>
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*/
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#include <dm.h>
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#include <dm/pinctrl.h>
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#include <linux/bitops.h>
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#include <linux/io.h>
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#include "pinctrl-mtmips-common.h"
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#define SUTIF_SHIFT 30
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#define WDT_RST_SHIFT 21
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#define PA_G_SHIFT 20
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#define NAND_SD_SHIFT 18
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#define PERST_SHIFT 16
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#define EPHY_LED_SHIFT 15
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#define WLED_SHIFT 13
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#define SPI_CS1_SHIFT 12
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#define SPI_SHIFT 11
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#define RGMII2_SHIFT 10
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#define RGMII1_SHIFT 9
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#define MDIO_SHIFT 7
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#define UARTL_SHIFT 5
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#define UARTF_SHIFT 2
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#define I2C_SHIFT 0
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#define GM4_MASK 3
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#define GM8_MASK 7
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#if CONFIG_IS_ENABLED(PINMUX)
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static const struct mtmips_pmx_func sutif_grp[] = {
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FUNC("i2c", 2),
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FUNC("uartl", 1),
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FUNC("none", 0),
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};
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static const struct mtmips_pmx_func wdt_rst_grp[] = {
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FUNC("gpio", 2),
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FUNC("refclk", 1),
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FUNC("wdt rst", 0),
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};
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static const struct mtmips_pmx_func pa_g_grp[] = {
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FUNC("gpio", 1),
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FUNC("pa", 0),
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};
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static const struct mtmips_pmx_func nand_sd_grp[] = {
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FUNC("gpio", 2),
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FUNC("sd", 1),
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FUNC("nand", 0),
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};
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static const struct mtmips_pmx_func perst_grp[] = {
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FUNC("gpio", 2),
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FUNC("refclk", 1),
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FUNC("perst", 0),
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};
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static const struct mtmips_pmx_func ephy_led_grp[] = {
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FUNC("gpio", 1),
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FUNC("led", 0),
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};
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static const struct mtmips_pmx_func wled_grp[] = {
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FUNC("gpio", 1),
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FUNC("led", 0),
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};
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static const struct mtmips_pmx_func spi_cs1_grp[] = {
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FUNC("refclk", 1),
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FUNC("spi cs1", 0),
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};
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static const struct mtmips_pmx_func spi_grp[] = {
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FUNC("gpio", 1),
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FUNC("spi", 0),
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};
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static const struct mtmips_pmx_func rgmii2_grp[] = {
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FUNC("gpio", 1),
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FUNC("rgmii2", 0),
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};
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static const struct mtmips_pmx_func rgmii1_grp[] = {
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FUNC("gpio", 1),
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FUNC("rgmii1", 0),
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};
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static const struct mtmips_pmx_func mdio_grp[] = {
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FUNC("gpio", 2),
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FUNC("refclk", 1),
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FUNC("mdio", 0),
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};
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static const struct mtmips_pmx_func uartl_grp[] = {
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FUNC("gpio", 1),
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FUNC("uartl", 0),
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};
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static const struct mtmips_pmx_func uartf_grp[] = {
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FUNC("gpio", 7),
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FUNC("i2s gpio", 6),
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FUNC("uartf gpio", 5),
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FUNC("gpio pcm", 4),
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FUNC("i2s uartf", 3),
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FUNC("i2s pcm", 2),
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FUNC("uartf pcm", 1),
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FUNC("uartf", 0),
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};
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static const struct mtmips_pmx_func i2c_grp[] = {
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FUNC("gpio", 1),
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FUNC("i2c", 0),
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};
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static const struct mtmips_pmx_group mt7620_pinmux_data[] = {
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GRP("sutif", sutif_grp, 0, SUTIF_SHIFT, GM4_MASK),
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GRP("wdt rst", wdt_rst_grp, 0, WDT_RST_SHIFT, GM4_MASK),
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GRP("pa", pa_g_grp, 0, PA_G_SHIFT, 1),
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GRP("nand", nand_sd_grp, 0, NAND_SD_SHIFT, GM4_MASK),
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GRP("perst", perst_grp, 0, PERST_SHIFT, GM4_MASK),
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GRP("ephy led", ephy_led_grp, 0, EPHY_LED_SHIFT, 1),
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GRP("wled", wled_grp, 0, WLED_SHIFT, 1),
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GRP("spi cs1", spi_cs1_grp, 0, SPI_CS1_SHIFT, 1),
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GRP("spi", spi_grp, 0, SPI_SHIFT, 1),
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GRP("rgmii2", rgmii2_grp, 0, RGMII2_SHIFT, 1),
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GRP("rgmii1", rgmii1_grp, 0, RGMII1_SHIFT, 1),
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GRP("mdio", mdio_grp, 0, MDIO_SHIFT, GM4_MASK),
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GRP("uartl", uartl_grp, 0, UARTL_SHIFT, 1),
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GRP("uartf", uartf_grp, 0, UARTF_SHIFT, GM8_MASK),
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GRP("i2c", i2c_grp, 0, I2C_SHIFT, 1),
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};
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static int mt7620_get_groups_count(struct udevice *dev)
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{
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return ARRAY_SIZE(mt7620_pinmux_data);
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}
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static const char *mt7620_get_group_name(struct udevice *dev,
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unsigned int selector)
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{
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return mt7620_pinmux_data[selector].name;
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}
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#endif /* CONFIG_IS_ENABLED(PINMUX) */
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static int mt7620_pinctrl_probe(struct udevice *dev)
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{
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struct mtmips_pinctrl_priv *priv = dev_get_priv(dev);
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int ret = 0;
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#if CONFIG_IS_ENABLED(PINMUX)
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ret = mtmips_pinctrl_probe(priv, ARRAY_SIZE(mt7620_pinmux_data),
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mt7620_pinmux_data);
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#endif /* CONFIG_IS_ENABLED(PINMUX) */
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return ret;
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}
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static int mt7620_pinctrl_of_to_plat(struct udevice *dev)
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{
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struct mtmips_pinctrl_priv *priv = dev_get_priv(dev);
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priv->base = dev_remap_addr_index(dev, 0);
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if (!priv->base)
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return -EINVAL;
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return 0;
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}
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static const struct pinctrl_ops mt7620_pinctrl_ops = {
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#if CONFIG_IS_ENABLED(PINMUX)
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.get_groups_count = mt7620_get_groups_count,
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.get_group_name = mt7620_get_group_name,
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.get_functions_count = mtmips_get_functions_count,
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.get_function_name = mtmips_get_function_name,
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.pinmux_group_set = mtmips_pinmux_group_set,
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#endif /* CONFIG_IS_ENABLED(PINMUX) */
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.set_state = pinctrl_generic_set_state,
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};
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static const struct udevice_id mt7620_pinctrl_ids[] = {
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{ .compatible = "mediatek,mt7620-pinctrl" },
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{ }
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};
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U_BOOT_DRIVER(mt7620_pinctrl) = {
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.name = "mt7620-pinctrl",
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.id = UCLASS_PINCTRL,
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.of_match = mt7620_pinctrl_ids,
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.of_to_plat = mt7620_pinctrl_of_to_plat,
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.ops = &mt7620_pinctrl_ops,
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.probe = mt7620_pinctrl_probe,
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.priv_auto = sizeof(struct mtmips_pinctrl_priv),
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.flags = DM_FLAG_PRE_RELOC,
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};
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