--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 MediaTek Inc. All Rights Reserved.
+ *
+ * Author: Weijie Gao <weijie.gao@mediatek.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/pinctrl.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+
+#include "pinctrl-mtmips-common.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define AGPIO_OFS 0
+#define GPIOMODE1_OFS 0x24
+#define GPIOMODE2_OFS 0x28
+
+#define EPHY4_1_PAD_SHIFT 17
+#define EPHY4_1_PAD_MASK 0x0f
+#define EPHY0_SHIFT 16
+#define RF_OLT_MODE_SHIFT 12
+#define N9_EINT_SRC_SHIFT 9
+#define WLED_OD_SHIFT 8
+#define REF_CLKO_PAD_SHIFT 4
+#define I2S_CLK_PAD_SHIFT 3
+#define I2S_WS_PAD_SHIFT 2
+#define I2S_SDO_PAD_SHIFT 1
+#define I2S_SDI_PAD_SHIFT 0
+
+#define GM4_MASK 3
+
+#define P4LED_K_SHIFT 26
+#define P3LED_K_SHIFT 24
+#define P2LED_K_SHIFT 22
+#define P1LED_K_SHIFT 20
+#define P0LED_K_SHIFT 18
+#define WLED_K_SHIFT 16
+#define P4LED_A_SHIFT 10
+#define P3LED_A_SHIFT 8
+#define P2LED_A_SHIFT 6
+#define P1LED_A_SHIFT 4
+#define P0LED_A_SHIFT 2
+#define WLED_A_SHIFT 0
+
+#define PWM1_SHIFT 30
+#define PWM0_SHIFT 28
+#define UART2_SHIFT 26
+#define UART1_SHIFT 24
+#define I2C_SHIFT 20
+#define REFCLK_SHIFT 18
+#define PERST_SHIFT 16
+#define ESD_SHIFT 15
+#define WDT_SHIFT 14
+#define SPI_SHIFT 12
+#define SDMODE_SHIFT 10
+#define UART0_SHIFT 8
+#define I2S_SHIFT 6
+#define SPI_CS1_SHIFT 4
+#define SPIS_SHIFT 2
+#define GPIO0_SHIFT 0
+
+#define PAD_PU_G0_REG 0x00
+#define PAD_PU_G1_REG 0x04
+#define PAD_PD_G0_REG 0x10
+#define PAD_PD_G1_REG 0x14
+#define PAD_SR_G0_REG 0x20
+#define PAD_SR_G1_REG 0x24
+#define PAD_SMT_G0_REG 0x30
+#define PAD_SMT_G1_REG 0x34
+#define PAD_E2_G0_REG 0x40
+#define PAD_E2_G1_REG 0x44
+#define PAD_E4_G0_REG 0x50
+#define PAD_E4_G1_REG 0x54
+#define PAD_E8_G0_REG 0x60
+#define PAD_E8_G1_REG 0x64
+
+#define PIN_CONFIG_DRIVE_STRENGTH_28 (PIN_CONFIG_END + 1)
+#define PIN_CONFIG_DRIVE_STRENGTH_4G (PIN_CONFIG_END + 2)
+
+struct mt7628_pinctrl_priv {
+ struct mtmips_pinctrl_priv mp;
+
+ void __iomem *pcbase;
+};
+
+#if CONFIG_IS_ENABLED(PINMUX)
+static const struct mtmips_pmx_func ephy4_1_pad_grp[] = {
+ FUNC("digital", 0xf),
+ FUNC("analog", 0),
+};
+
+static const struct mtmips_pmx_func ephy0_grp[] = {
+ FUNC("disable", 1),
+ FUNC("enable", 0),
+};
+
+static const struct mtmips_pmx_func rf_olt_grp[] = {
+ FUNC("enable", 1),
+ FUNC("disable", 0),
+};
+
+static const struct mtmips_pmx_func n9_eint_src_grp[] = {
+ FUNC("gpio", 1),
+ FUNC("utif", 0),
+};
+
+static const struct mtmips_pmx_func wlen_od_grp[] = {
+ FUNC("enable", 1),
+ FUNC("disable", 0),
+};
+
+static const struct mtmips_pmx_func ref_clko_grp[] = {
+ FUNC("digital", 1),
+ FUNC("analog", 0),
+};
+
+static const struct mtmips_pmx_func i2s_clk_grp[] = {
+ FUNC("digital", 1),
+ FUNC("analog", 0),
+};
+
+static const struct mtmips_pmx_func i2s_ws_grp[] = {
+ FUNC("digital", 1),
+ FUNC("analog", 0),
+};
+
+static const struct mtmips_pmx_func i2s_sdo_grp[] = {
+ FUNC("digital", 1),
+ FUNC("analog", 0),
+};
+
+static const struct mtmips_pmx_func i2s_sdi_grp[] = {
+ FUNC("digital", 1),
+ FUNC("analog", 0),
+};
+
+static const struct mtmips_pmx_func pwm1_grp[] = {
+ FUNC("sdxc d6", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("pwm1", 0),
+};
+
+static const struct mtmips_pmx_func pwm0_grp[] = {
+ FUNC("sdxc d7", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("pwm0", 0),
+};
+
+static const struct mtmips_pmx_func uart2_grp[] = {
+ FUNC("sdxc d5 d4", 3),
+ FUNC("pwm", 2),
+ FUNC("gpio", 1),
+ FUNC("uart2", 0),
+};
+
+static const struct mtmips_pmx_func uart1_grp[] = {
+ FUNC("sw_r", 3),
+ FUNC("pwm", 2),
+ FUNC("gpio", 1),
+ FUNC("uart1", 0),
+};
+
+static const struct mtmips_pmx_func i2c_grp[] = {
+ FUNC("-", 3),
+ FUNC("debug", 2),
+ FUNC("gpio", 1),
+ FUNC("i2c", 0),
+};
+
+static const struct mtmips_pmx_func refclk_grp[] = {
+ FUNC("gpio", 1),
+ FUNC("refclk", 0),
+};
+
+static const struct mtmips_pmx_func perst_grp[] = {
+ FUNC("gpio", 1),
+ FUNC("perst", 0),
+};
+
+static const struct mtmips_pmx_func esd_grp[] = {
+ FUNC("router", 1),
+ FUNC("iot", 0),
+};
+
+static const struct mtmips_pmx_func wdt_grp[] = {
+ FUNC("gpio", 1),
+ FUNC("wdt", 0),
+};
+
+static const struct mtmips_pmx_func spi_grp[] = {
+ FUNC("gpio", 1),
+ FUNC("spi", 0),
+};
+
+static const struct mtmips_pmx_func sd_mode_grp[] = {
+ FUNC("n9 jtag", 3),
+ FUNC("utif1", 2),
+ FUNC("gpio", 1),
+ FUNC("sdxc", 0),
+};
+
+static const struct mtmips_pmx_func uart0_grp[] = {
+ FUNC("-", 3),
+ FUNC("-", 2),
+ FUNC("gpio", 1),
+ FUNC("uart0", 0),
+};
+
+static const struct mtmips_pmx_func i2s_grp[] = {
+ FUNC("antenna", 3),
+ FUNC("pcm", 2),
+ FUNC("gpio", 1),
+ FUNC("i2s", 0),
+};
+
+static const struct mtmips_pmx_func spi_cs1_grp[] = {
+ FUNC("-", 3),
+ FUNC("refclk", 2),
+ FUNC("gpio", 1),
+ FUNC("spi cs1", 0),
+};
+
+static const struct mtmips_pmx_func spis_grp[] = {
+ FUNC("pwm_uart2", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("spis", 0),
+};
+
+static const struct mtmips_pmx_func gpio0_grp[] = {
+ FUNC("perst", 3),
+ FUNC("refclk", 2),
+ FUNC("gpio", 1),
+ FUNC("gpio0", 0),
+};
+
+static const struct mtmips_pmx_func wled_a_grp[] = {
+ FUNC("-", 3),
+ FUNC("-", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func p0led_a_grp[] = {
+ FUNC("jtag", 3),
+ FUNC("rsvd", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func p1led_a_grp[] = {
+ FUNC("jtag", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func p2led_a_grp[] = {
+ FUNC("jtag", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func p3led_a_grp[] = {
+ FUNC("jtag", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func p4led_a_grp[] = {
+ FUNC("jtag", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func wled_k_grp[] = {
+ FUNC("-", 3),
+ FUNC("-", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func p0led_k_grp[] = {
+ FUNC("jtag", 3),
+ FUNC("rsvd", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func p1led_k_grp[] = {
+ FUNC("jtag", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func p2led_k_grp[] = {
+ FUNC("jtag", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func p3led_k_grp[] = {
+ FUNC("jtag", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_func p4led_k_grp[] = {
+ FUNC("jtag", 3),
+ FUNC("utif", 2),
+ FUNC("gpio", 1),
+ FUNC("led", 0),
+};
+
+static const struct mtmips_pmx_group mt7628_pinmux_data[] = {
+ GRP("ephy4_1_pad", ephy4_1_pad_grp, AGPIO_OFS, EPHY4_1_PAD_SHIFT,
+ EPHY4_1_PAD_MASK),
+ GRP("ephy0", ephy0_grp, AGPIO_OFS, EPHY0_SHIFT, 1),
+ GRP("rf_olt", rf_olt_grp, AGPIO_OFS, RF_OLT_MODE_SHIFT, 1),
+ GRP("n9_eint_src", n9_eint_src_grp, AGPIO_OFS, N9_EINT_SRC_SHIFT, 1),
+ GRP("wlen_od", wlen_od_grp, AGPIO_OFS, WLED_OD_SHIFT, 1),
+ GRP("ref_clko_pad", ref_clko_grp, AGPIO_OFS, REF_CLKO_PAD_SHIFT, 1),
+ GRP("i2s_clk_pad", i2s_clk_grp, AGPIO_OFS, I2S_CLK_PAD_SHIFT, 1),
+ GRP("i2s_ws_pad", i2s_ws_grp, AGPIO_OFS, I2S_WS_PAD_SHIFT, 1),
+ GRP("i2s_sdo_pad", i2s_sdo_grp, AGPIO_OFS, I2S_SDO_PAD_SHIFT, 1),
+ GRP("i2s_sdi_pad", i2s_sdi_grp, AGPIO_OFS, I2S_SDI_PAD_SHIFT, 1),
+ GRP("pwm1", pwm1_grp, GPIOMODE1_OFS, PWM1_SHIFT, GM4_MASK),
+ GRP("pwm0", pwm0_grp, GPIOMODE1_OFS, PWM0_SHIFT, GM4_MASK),
+ GRP("uart2", uart2_grp, GPIOMODE1_OFS, UART2_SHIFT, GM4_MASK),
+ GRP("uart1", uart1_grp, GPIOMODE1_OFS, UART1_SHIFT, GM4_MASK),
+ GRP("i2c", i2c_grp, GPIOMODE1_OFS, I2C_SHIFT, GM4_MASK),
+ GRP("refclk", refclk_grp, GPIOMODE1_OFS, REFCLK_SHIFT, 1),
+ GRP("perst", perst_grp, GPIOMODE1_OFS, PERST_SHIFT, 1),
+ GRP("sd router", esd_grp, GPIOMODE1_OFS, ESD_SHIFT, 1),
+ GRP("wdt", wdt_grp, GPIOMODE1_OFS, WDT_SHIFT, 1),
+ GRP("spi", spi_grp, GPIOMODE1_OFS, SPI_SHIFT, 1),
+ GRP("sdmode", sd_mode_grp, GPIOMODE1_OFS, SDMODE_SHIFT, GM4_MASK),
+ GRP("uart0", uart0_grp, GPIOMODE1_OFS, UART0_SHIFT, GM4_MASK),
+ GRP("i2s", i2s_grp, GPIOMODE1_OFS, I2S_SHIFT, GM4_MASK),
+ GRP("spi cs1", spi_cs1_grp, GPIOMODE1_OFS, SPI_CS1_SHIFT, GM4_MASK),
+ GRP("spis", spis_grp, GPIOMODE1_OFS, SPIS_SHIFT, GM4_MASK),
+ GRP("gpio0", gpio0_grp, GPIOMODE1_OFS, GPIO0_SHIFT, GM4_MASK),
+ GRP("wled_a", wled_a_grp, GPIOMODE2_OFS, WLED_A_SHIFT, GM4_MASK),
+ GRP("p0led_a", p0led_a_grp, GPIOMODE2_OFS, P0LED_A_SHIFT, GM4_MASK),
+ GRP("p1led_a", p1led_a_grp, GPIOMODE2_OFS, P1LED_A_SHIFT, GM4_MASK),
+ GRP("p2led_a", p2led_a_grp, GPIOMODE2_OFS, P2LED_A_SHIFT, GM4_MASK),
+ GRP("p3led_a", p3led_a_grp, GPIOMODE2_OFS, P3LED_A_SHIFT, GM4_MASK),
+ GRP("p4led_a", p4led_a_grp, GPIOMODE2_OFS, P4LED_A_SHIFT, GM4_MASK),
+ GRP("wled_k", wled_k_grp, GPIOMODE2_OFS, WLED_K_SHIFT, GM4_MASK),
+ GRP("p0led_k", p0led_k_grp, GPIOMODE2_OFS, P0LED_K_SHIFT, GM4_MASK),
+ GRP("p1led_k", p1led_k_grp, GPIOMODE2_OFS, P1LED_K_SHIFT, GM4_MASK),
+ GRP("p2led_k", p2led_k_grp, GPIOMODE2_OFS, P2LED_K_SHIFT, GM4_MASK),
+ GRP("p3led_k", p3led_k_grp, GPIOMODE2_OFS, P3LED_K_SHIFT, GM4_MASK),
+ GRP("p4led_k", p4led_k_grp, GPIOMODE2_OFS, P4LED_K_SHIFT, GM4_MASK),
+};
+
+static int mt7628_get_groups_count(struct udevice *dev)
+{
+ return ARRAY_SIZE(mt7628_pinmux_data);
+}
+
+static const char *mt7628_get_group_name(struct udevice *dev,
+ unsigned int selector)
+{
+ return mt7628_pinmux_data[selector].name;
+}
+#endif /* CONFIG_IS_ENABLED(PINMUX) */
+
+#if CONFIG_IS_ENABLED(PINCONF)
+static const struct pinconf_param mt7628_conf_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 },
+ { "input-schmitt-enable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 1 },
+ { "input-schmitt-disable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 0 },
+ { "drive-strength-28", PIN_CONFIG_DRIVE_STRENGTH_28, 0 },
+ { "drive-strength-4g", PIN_CONFIG_DRIVE_STRENGTH_4G, 0 },
+ { "slew-rate", PIN_CONFIG_SLEW_RATE, 0 },
+};
+
+static const char *const mt7628_pins[] = {
+ "i2s_sdi",
+ "i2s_sdo",
+ "i2s_ws",
+ "i2s_clk",
+ "i2s_sclk",
+ "i2c_sd",
+ "spi_cs1",
+ "spi_clk",
+ "spi_mosi",
+ "spi_miso",
+ "spi_cs0",
+ "gpio0",
+ "uart0_txd",
+ "uart0_rxd",
+ "spis_cs",
+ "spis_clk",
+ "spis_miso",
+ "spis_mosi",
+ "pwm_ch0",
+ "pwm_ch1",
+ "uart2_txd",
+ "uart2_rxd",
+ "sd_wp",
+ "sd_cd",
+ "sd_d1",
+ "sd_d0",
+ "sd_clk",
+ "sd_cmd",
+ "sd_d3",
+ "sd_d2",
+ "ephy_led4_k",
+ "ephy_led3_k",
+ "ephy_led2_k",
+ "ephy_led1_k",
+ "ephy_led0_k",
+ "wled_k",
+ "perst_n",
+ "co_clko",
+ "wdt",
+ "ephy_led4_a",
+ "ephy_led3_a",
+ "ephy_led2_a",
+ "ephy_led1_a",
+ "ephy_led0_a",
+ "wled_a",
+ "uart1_txd",
+ "uart1_rxd",
+};
+
+static const u32 mt7628_drv_strength_28_tbl[] = {2, 4, 6, 8};
+static const u32 mt7628_drv_strength_4g_tbl[] = {4, 8, 12, 16};
+
+static int mt7628_set_drv_strength(void __iomem *base, u32 val, u32 bit,
+ const u32 tbl[], u32 reg_lo, u32 reg_hi)
+{
+ int i;
+
+ for (i = 0; i < 4; i++)
+ if (tbl[i] == val)
+ break;
+
+ if (i >= 4)
+ return -EINVAL;
+
+ clrsetbits_32(base + reg_lo, BIT(bit), (i & 1) << bit);
+ clrsetbits_32(base + reg_hi, BIT(bit), ((i >> 1) & 1) << bit);
+
+ return 0;
+}
+
+static int mt7628_get_pins_count(struct udevice *dev)
+{
+ return ARRAY_SIZE(mt7628_pins);
+}
+
+static const char *mt7628_get_pin_name(struct udevice *dev,
+ unsigned int selector)
+{
+ return mt7628_pins[selector];
+}
+
+static int mt7628_pinconf_set(struct udevice *dev, unsigned int pin_selector,
+ unsigned int param, unsigned int argument)
+{
+ struct mt7628_pinctrl_priv *priv = dev_get_priv(dev);
+ u32 offs, bit;
+ int ret = 0;
+
+ offs = (pin_selector / 32) * 4;
+ bit = pin_selector % 32;
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ clrbits_32(priv->pcbase + offs + PAD_PU_G0_REG, BIT(bit));
+ clrbits_32(priv->pcbase + offs + PAD_PD_G0_REG, BIT(bit));
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ setbits_32(priv->pcbase + offs + PAD_PU_G0_REG, BIT(bit));
+ clrbits_32(priv->pcbase + offs + PAD_PD_G0_REG, BIT(bit));
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ clrbits_32(priv->pcbase + offs + PAD_PU_G0_REG, BIT(bit));
+ setbits_32(priv->pcbase + offs + PAD_PD_G0_REG, BIT(bit));
+ break;
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ clrsetbits_32(priv->pcbase + offs + PAD_SMT_G0_REG,
+ BIT(bit), (!!argument) << bit);
+ break;
+ case PIN_CONFIG_DRIVE_STRENGTH_28:
+ ret = mt7628_set_drv_strength(priv->pcbase + offs, argument,
+ bit, mt7628_drv_strength_28_tbl,
+ PAD_E2_G0_REG, PAD_E4_G0_REG);
+ break;
+ case PIN_CONFIG_DRIVE_STRENGTH_4G:
+ ret = mt7628_set_drv_strength(priv->pcbase + offs, argument,
+ bit, mt7628_drv_strength_4g_tbl,
+ PAD_E4_G0_REG, PAD_E8_G0_REG);
+ break;
+ case PIN_CONFIG_SLEW_RATE:
+ clrsetbits_32(priv->pcbase + offs + PAD_SR_G0_REG,
+ BIT(bit), (!!argument) << bit);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+#endif
+
+static int mt7628_pinctrl_probe(struct udevice *dev)
+{
+ struct mt7628_pinctrl_priv *priv = dev_get_priv(dev);
+ int ret = 0;
+
+#if CONFIG_IS_ENABLED(PINMUX)
+ ret = mtmips_pinctrl_probe(&priv->mp, ARRAY_SIZE(mt7628_pinmux_data),
+ mt7628_pinmux_data);
+#endif /* CONFIG_IS_ENABLED(PINMUX) */
+
+ return ret;
+}
+
+static int mt7628_pinctrl_ofdata_to_platdata(struct udevice *dev)
+{
+ struct mt7628_pinctrl_priv *priv = dev_get_priv(dev);
+
+ priv->mp.base = (void __iomem *)dev_remap_addr_index(dev, 0);
+
+ if (!priv->mp.base)
+ return -EINVAL;
+
+ priv->pcbase = (void __iomem *)dev_remap_addr_index(dev, 1);
+
+ if (!priv->pcbase)
+ return -EINVAL;
+
+ return 0;
+}
+
+static const struct pinctrl_ops mt7628_pinctrl_ops = {
+#if CONFIG_IS_ENABLED(PINMUX)
+ .get_groups_count = mt7628_get_groups_count,
+ .get_group_name = mt7628_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) */
+#if CONFIG_IS_ENABLED(PINCONF)
+ .pinconf_num_params = ARRAY_SIZE(mt7628_conf_params),
+ .pinconf_params = mt7628_conf_params,
+ .get_pins_count = mt7628_get_pins_count,
+ .get_pin_name = mt7628_get_pin_name,
+ .pinconf_set = mt7628_pinconf_set,
+#endif /* CONFIG_IS_ENABLED(PINCONF) */
+ .set_state = pinctrl_generic_set_state,
+};
+
+static const struct udevice_id mt7628_pinctrl_ids[] = {
+ { .compatible = "mediatek,mt7628-pinctrl" },
+ { }
+};
+
+U_BOOT_DRIVER(mt7628_pinctrl) = {
+ .name = "mt7628-pinctrl",
+ .id = UCLASS_PINCTRL,
+ .of_match = mt7628_pinctrl_ids,
+ .ofdata_to_platdata = mt7628_pinctrl_ofdata_to_platdata,
+ .ops = &mt7628_pinctrl_ops,
+ .probe = mt7628_pinctrl_probe,
+ .priv_auto_alloc_size = sizeof(struct mt7628_pinctrl_priv),
+};
projects / oweals / u-boot.git / commitdiff