1 /* 2 * Copyright (c) 2022, NXP 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ZEPHYR_SOC_ARM_NXP_IMX_MCIMX6X_PINCTRL_SOC_H_ 8 #define ZEPHYR_SOC_ARM_NXP_IMX_MCIMX6X_PINCTRL_SOC_H_ 9 10 #include <zephyr/devicetree.h> 11 #include <zephyr/types.h> 12 13 #ifdef __cplusplus 14 extern "C" { 15 #endif 16 17 #define IOMUXC_SW_MUX_CTL_PAD_MUX_MODE(x) ((x) & 0xF) 18 #define IOMUXC_SW_MUX_CTL_PAD_SION(x) (((x) & 0x1) << 4) 19 #define IOMUXC_SELECT_INPUT_DAISY(x) ((x) & 0x7) 20 21 #define MCUX_IMX_INPUT_SCHMITT_ENABLE_SHIFT 16 22 #define MCUX_IMX_BIAS_PULL_DOWN_SHIFT 14 23 #define MCUX_IMX_BIAS_PULL_UP_SHIFT 14 24 #define MCUX_IMX_BIAS_BUS_HOLD_SHIFT 13 25 #define MCUX_IMX_PULL_ENABLE_SHIFT 12 26 #define MCUX_IMX_DRIVE_OPEN_DRAIN_SHIFT 11 27 #define MCUX_IMX_SPEED_SHIFT 6 28 #define MCUX_IMX_DRIVE_STRENGTH_SHIFT 3 29 #define MCUX_IMX_SLEW_RATE_SHIFT 0 30 #define MCUX_IMX_INPUT_ENABLE_SHIFT 31 /* Shift to a bit not used by IOMUXC_SW_PAD_CTL */ 31 #define MCUX_IMX_INPUT_ENABLE(x) ((x >> MCUX_IMX_INPUT_ENABLE_SHIFT) & 0x1) 32 33 #define Z_PINCTRL_MCUX_IMX_PINCFG_INIT(node_id) \ 34 ((DT_PROP(node_id, input_schmitt_enable) << MCUX_IMX_INPUT_SCHMITT_ENABLE_SHIFT) | \ 35 IF_ENABLED(DT_PROP(node_id, bias_pull_up), (DT_ENUM_IDX(node_id, bias_pull_up_value) \ 36 << MCUX_IMX_BIAS_PULL_UP_SHIFT) |) \ 37 IF_ENABLED(DT_PROP(node_id, bias_pull_down), (DT_ENUM_IDX(node_id, bias_pull_down_value)\ 38 << MCUX_IMX_BIAS_PULL_DOWN_SHIFT) |) \ 39 ((DT_PROP(node_id, bias_pull_down) | DT_PROP(node_id, bias_pull_up)) \ 40 << MCUX_IMX_BIAS_BUS_HOLD_SHIFT) | \ 41 ((!DT_PROP(node_id, bias_disable)) << MCUX_IMX_PULL_ENABLE_SHIFT) | \ 42 (DT_PROP(node_id, drive_open_drain) << MCUX_IMX_DRIVE_OPEN_DRAIN_SHIFT) | \ 43 (DT_ENUM_IDX(node_id, nxp_speed) << MCUX_IMX_SPEED_SHIFT) | \ 44 (DT_ENUM_IDX(node_id, drive_strength) << MCUX_IMX_DRIVE_STRENGTH_SHIFT) | \ 45 (DT_ENUM_IDX(node_id, slew_rate) << MCUX_IMX_SLEW_RATE_SHIFT) | \ 46 (DT_PROP(node_id, input_enable) << MCUX_IMX_INPUT_ENABLE_SHIFT)) 47 48 49 /* This struct must be present. It is used by the mcux gpio driver */ 50 struct pinctrl_soc_pinmux { 51 uint32_t mux_register; /*!< IOMUXC SW_PAD_MUX register */ 52 uint32_t config_register; /*!< IOMUXC SW_PAD_CTL register */ 53 uint32_t input_register; /*!< IOMUXC SELECT_INPUT DAISY register */ 54 uint8_t mux_mode: 4; /*!< Mux value for SW_PAD_MUX register */ 55 uint32_t input_daisy:4; /*!< Mux value for SELECT_INPUT_DAISY register */ 56 }; 57 58 struct pinctrl_soc_pin { 59 struct pinctrl_soc_pinmux pinmux; 60 uint32_t pin_ctrl_flags; /*!< value to write to IOMUXC_SW_PAD_CTL register */ 61 }; 62 63 typedef struct pinctrl_soc_pin pinctrl_soc_pin_t; 64 65 /* This definition must be present. It is used by the mcux gpio driver */ 66 #define MCUX_IMX_PINMUX(node_id) \ 67 { \ 68 .mux_register = DT_PROP_BY_IDX(node_id, pinmux, 0), \ 69 .config_register = DT_PROP_BY_IDX(node_id, pinmux, 4), \ 70 .input_register = DT_PROP_BY_IDX(node_id, pinmux, 2), \ 71 .mux_mode = DT_PROP_BY_IDX(node_id, pinmux, 1), \ 72 .input_daisy = DT_PROP_BY_IDX(node_id, pinmux, 3), \ 73 } 74 75 #define Z_PINCTRL_PINMUX(group_id, pin_prop, idx) \ 76 MCUX_IMX_PINMUX(DT_PHANDLE_BY_IDX(group_id, pin_prop, idx)) 77 78 #define Z_PINCTRL_STATE_PIN_INIT(group_id, pin_prop, idx) \ 79 { \ 80 .pinmux = Z_PINCTRL_PINMUX(group_id, pin_prop, idx), \ 81 .pin_ctrl_flags = Z_PINCTRL_MCUX_IMX_PINCFG_INIT(group_id), \ 82 }, 83 84 85 #define Z_PINCTRL_STATE_PINS_INIT(node_id, prop) \ 86 {DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop), \ 87 DT_FOREACH_PROP_ELEM, pinmux, Z_PINCTRL_STATE_PIN_INIT)}; \ 88 89 90 #ifdef __cplusplus 91 } 92 #endif 93 94 #endif /* ZEPHYR_SOC_ARM_NXP_IMX_MCIMX6X_PINCTRL_SOC_H_ */ 95
