1 /* 2 * SuperH Pin Function Controller Support 3 * Copy from Linux kernel. (include/linux/sh_pfc.h) 4 * 5 * Copyright (c) 2008 Magnus Damm 6 * 7 * This file is subject to the terms and conditions of the GNU General Public 8 * License. See the file "COPYING" in the main directory of this archive 9 * for more details. 10 */ 11 12 #ifndef __SH_PFC_H 13 #define __SH_PFC_H 14 15 typedef unsigned short pinmux_enum_t; 16 typedef unsigned short pinmux_flag_t; 17 18 #define PINMUX_TYPE_NONE 0 19 #define PINMUX_TYPE_FUNCTION 1 20 #define PINMUX_TYPE_GPIO 2 21 #define PINMUX_TYPE_OUTPUT 3 22 #define PINMUX_TYPE_INPUT 4 23 #define PINMUX_TYPE_INPUT_PULLUP 5 24 #define PINMUX_TYPE_INPUT_PULLDOWN 6 25 26 #define PINMUX_FLAG_TYPE (0x7) 27 #define PINMUX_FLAG_WANT_PULLUP (1 << 3) 28 #define PINMUX_FLAG_WANT_PULLDOWN (1 << 4) 29 30 #define PINMUX_FLAG_DBIT_SHIFT 5 31 #define PINMUX_FLAG_DBIT (0x1f << PINMUX_FLAG_DBIT_SHIFT) 32 #define PINMUX_FLAG_DREG_SHIFT 10 33 #define PINMUX_FLAG_DREG (0x3f << PINMUX_FLAG_DREG_SHIFT) 34 35 struct pinmux_gpio { 36 pinmux_enum_t enum_id; 37 pinmux_flag_t flags; 38 }; 39 40 #define PINMUX_GPIO(gpio, data_or_mark)[gpio] = { data_or_mark } 41 #define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0 42 43 struct pinmux_cfg_reg { 44 unsigned long reg, reg_width, field_width; 45 unsigned long *cnt; 46 pinmux_enum_t *enum_ids; 47 unsigned long *var_field_width; 48 }; 49 50 #define PINMUX_CFG_REG(name, r, r_width, f_width) \ 51 .reg = r, .reg_width = r_width, .field_width = f_width, \ 52 .cnt = (unsigned long [r_width / f_width]) {}, \ 53 .enum_ids = (pinmux_enum_t [(r_width / f_width) * (1 << f_width)]) 54 55 #define PINMUX_CFG_REG_VAR(name, r, r_width, var_fw0, var_fwn...) \ 56 .reg = r, .reg_width = r_width, \ 57 .cnt = (unsigned long [r_width]) {}, \ 58 .var_field_width = (unsigned long [r_width]) { var_fw0, var_fwn, 0 }, \ 59 .enum_ids = (pinmux_enum_t []) 60 61 struct pinmux_data_reg { 62 unsigned long reg, reg_width, reg_shadow; 63 pinmux_enum_t *enum_ids; 64 void *mapped_reg; 65 }; 66 67 #define PINMUX_DATA_REG(name, r, r_width) \ 68 .reg = r, .reg_width = r_width, \ 69 .enum_ids = (pinmux_enum_t [r_width]) \ 70 71 struct pinmux_irq { 72 int irq; 73 pinmux_enum_t *enum_ids; 74 }; 75 76 #define PINMUX_IRQ(irq_nr, ids...) \ 77 { .irq = irq_nr, .enum_ids = (pinmux_enum_t []) { ids, 0 } } \ 78 79 struct pinmux_range { 80 pinmux_enum_t begin; 81 pinmux_enum_t end; 82 pinmux_enum_t force; 83 }; 84 85 struct pinmux_info { 86 char *name; 87 pinmux_enum_t reserved_id; 88 struct pinmux_range data; 89 struct pinmux_range input; 90 struct pinmux_range input_pd; 91 struct pinmux_range input_pu; 92 struct pinmux_range output; 93 struct pinmux_range mark; 94 struct pinmux_range function; 95 96 unsigned first_gpio, last_gpio; 97 98 struct pinmux_gpio *gpios; 99 struct pinmux_cfg_reg *cfg_regs; 100 struct pinmux_data_reg *data_regs; 101 102 pinmux_enum_t *gpio_data; 103 unsigned int gpio_data_size; 104 105 struct pinmux_irq *gpio_irq; 106 unsigned int gpio_irq_size; 107 108 struct resource *resource; 109 unsigned int num_resources; 110 unsigned long unlock_reg; 111 }; 112 113 int register_pinmux(struct pinmux_info *pip); 114 int unregister_pinmux(struct pinmux_info *pip); 115 116 /* helper macro for port */ 117 #define PORT_1(fn, pfx, sfx) fn(pfx, sfx) 118 119 #define PORT_10(fn, pfx, sfx) \ 120 PORT_1(fn, pfx##0, sfx), PORT_1(fn, pfx##1, sfx), \ 121 PORT_1(fn, pfx##2, sfx), PORT_1(fn, pfx##3, sfx), \ 122 PORT_1(fn, pfx##4, sfx), PORT_1(fn, pfx##5, sfx), \ 123 PORT_1(fn, pfx##6, sfx), PORT_1(fn, pfx##7, sfx), \ 124 PORT_1(fn, pfx##8, sfx), PORT_1(fn, pfx##9, sfx) 125 126 #define PORT_90(fn, pfx, sfx) \ 127 PORT_10(fn, pfx##1, sfx), PORT_10(fn, pfx##2, sfx), \ 128 PORT_10(fn, pfx##3, sfx), PORT_10(fn, pfx##4, sfx), \ 129 PORT_10(fn, pfx##5, sfx), PORT_10(fn, pfx##6, sfx), \ 130 PORT_10(fn, pfx##7, sfx), PORT_10(fn, pfx##8, sfx), \ 131 PORT_10(fn, pfx##9, sfx) 132 133 #define _PORT_ALL(pfx, sfx) pfx##_##sfx 134 #define _GPIO_PORT(pfx, sfx) PINMUX_GPIO(GPIO_PORT##pfx, PORT##pfx##_DATA) 135 #define PORT_ALL(str) CPU_ALL_PORT(_PORT_ALL, PORT, str) 136 #define GPIO_PORT_ALL() CPU_ALL_PORT(_GPIO_PORT, , unused) 137 #define GPIO_FN(str) PINMUX_GPIO(GPIO_FN_##str, str##_MARK) 138 139 /* helper macro for pinmux_enum_t */ 140 #define PORT_DATA_I(nr) \ 141 PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_IN) 142 143 #define PORT_DATA_I_PD(nr) \ 144 PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \ 145 PORT##nr##_IN, PORT##nr##_IN_PD) 146 147 #define PORT_DATA_I_PU(nr) \ 148 PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \ 149 PORT##nr##_IN, PORT##nr##_IN_PU) 150 151 #define PORT_DATA_I_PU_PD(nr) \ 152 PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \ 153 PORT##nr##_IN, PORT##nr##_IN_PD, PORT##nr##_IN_PU) 154 155 #define PORT_DATA_O(nr) \ 156 PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT) 157 158 #define PORT_DATA_IO(nr) \ 159 PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ 160 PORT##nr##_IN) 161 162 #define PORT_DATA_IO_PD(nr) \ 163 PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ 164 PORT##nr##_IN, PORT##nr##_IN_PD) 165 166 #define PORT_DATA_IO_PU(nr) \ 167 PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ 168 PORT##nr##_IN, PORT##nr##_IN_PU) 169 170 #define PORT_DATA_IO_PU_PD(nr) \ 171 PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ 172 PORT##nr##_IN, PORT##nr##_IN_PD, PORT##nr##_IN_PU) 173 174 /* helper macro for top 4 bits in PORTnCR */ 175 #define _PCRH(in, in_pd, in_pu, out) \ 176 0, (out), (in), 0, \ 177 0, 0, 0, 0, \ 178 0, 0, (in_pd), 0, \ 179 0, 0, (in_pu), 0 180 181 #define PORTCR(nr, reg) \ 182 { \ 183 PINMUX_CFG_REG("PORT" nr "CR", reg, 8, 4) { \ 184 _PCRH(PORT##nr##_IN, PORT##nr##_IN_PD, \ 185 PORT##nr##_IN_PU, PORT##nr##_OUT), \ 186 PORT##nr##_FN0, PORT##nr##_FN1, \ 187 PORT##nr##_FN2, PORT##nr##_FN3, \ 188 PORT##nr##_FN4, PORT##nr##_FN5, \ 189 PORT##nr##_FN6, PORT##nr##_FN7 } \ 190 } 191 192 #endif /* __SH_PFC_H */ 193