1 /* 2 * linux/drivers/pinctrl/pinctrl-lantiq.h 3 * based on linux/drivers/pinctrl/pinctrl-pxa3xx.h 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * publishhed by the Free Software Foundation. 8 * 9 * Copyright (C) 2012 John Crispin <blogic@openwrt.org> 10 */ 11 12 #ifndef __PINCTRL_LANTIQ_H 13 14 #include <linux/clkdev.h> 15 #include <linux/pinctrl/pinctrl.h> 16 #include <linux/pinctrl/pinconf.h> 17 #include <linux/pinctrl/pinmux.h> 18 #include <linux/pinctrl/consumer.h> 19 #include <linux/pinctrl/machine.h> 20 21 #include "core.h" 22 23 #define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x) 24 25 #define LTQ_MAX_MUX 4 26 #define MFPR_FUNC_MASK 0x3 27 28 #define LTQ_PINCONF_PACK(param, arg) ((param) << 16 | (arg)) 29 #define LTQ_PINCONF_UNPACK_PARAM(conf) ((conf) >> 16) 30 #define LTQ_PINCONF_UNPACK_ARG(conf) ((conf) & 0xffff) 31 32 enum ltq_pinconf_param { 33 LTQ_PINCONF_PARAM_PULL, 34 LTQ_PINCONF_PARAM_OPEN_DRAIN, 35 LTQ_PINCONF_PARAM_DRIVE_CURRENT, 36 LTQ_PINCONF_PARAM_SLEW_RATE, 37 }; 38 39 struct ltq_cfg_param { 40 const char *property; 41 enum ltq_pinconf_param param; 42 }; 43 44 struct ltq_mfp_pin { 45 const char *name; 46 const unsigned int pin; 47 const unsigned short func[LTQ_MAX_MUX]; 48 }; 49 50 struct ltq_pin_group { 51 const char *name; 52 const unsigned mux; 53 const unsigned *pins; 54 const unsigned npins; 55 }; 56 57 struct ltq_pmx_func { 58 const char *name; 59 const char * const *groups; 60 const unsigned num_groups; 61 }; 62 63 struct ltq_pinmux_info { 64 struct device *dev; 65 struct pinctrl_dev *pctrl; 66 67 /* we need to manage up to 5 pad controllers */ 68 void __iomem *membase[5]; 69 70 /* the descriptor for the subsystem */ 71 struct pinctrl_desc *desc; 72 73 /* we expose our pads to the subsystem */ 74 struct pinctrl_pin_desc *pads; 75 76 /* the number of pads. this varies between socs */ 77 unsigned int num_pads; 78 79 /* these are our multifunction pins */ 80 const struct ltq_mfp_pin *mfp; 81 unsigned int num_mfp; 82 83 /* a number of multifunction pins can be grouped together */ 84 const struct ltq_pin_group *grps; 85 unsigned int num_grps; 86 87 /* a mapping between function string and id */ 88 const struct ltq_pmx_func *funcs; 89 unsigned int num_funcs; 90 91 /* the pinconf options that we are able to read from the DT */ 92 const struct ltq_cfg_param *params; 93 unsigned int num_params; 94 95 /* the pad controller can have a irq mapping */ 96 const unsigned *exin; 97 unsigned int num_exin; 98 99 /* we need 5 clocks max */ 100 struct clk *clk[5]; 101 102 /* soc specific callback used to apply muxing */ 103 int (*apply_mux)(struct pinctrl_dev *pctrldev, int pin, int mux); 104 }; 105 106 enum ltq_pin { 107 GPIO0 = 0, 108 GPIO1, 109 GPIO2, 110 GPIO3, 111 GPIO4, 112 GPIO5, 113 GPIO6, 114 GPIO7, 115 GPIO8, 116 GPIO9, 117 GPIO10, /* 10 */ 118 GPIO11, 119 GPIO12, 120 GPIO13, 121 GPIO14, 122 GPIO15, 123 GPIO16, 124 GPIO17, 125 GPIO18, 126 GPIO19, 127 GPIO20, /* 20 */ 128 GPIO21, 129 GPIO22, 130 GPIO23, 131 GPIO24, 132 GPIO25, 133 GPIO26, 134 GPIO27, 135 GPIO28, 136 GPIO29, 137 GPIO30, /* 30 */ 138 GPIO31, 139 GPIO32, 140 GPIO33, 141 GPIO34, 142 GPIO35, 143 GPIO36, 144 GPIO37, 145 GPIO38, 146 GPIO39, 147 GPIO40, /* 40 */ 148 GPIO41, 149 GPIO42, 150 GPIO43, 151 GPIO44, 152 GPIO45, 153 GPIO46, 154 GPIO47, 155 GPIO48, 156 GPIO49, 157 GPIO50, /* 50 */ 158 GPIO51, 159 GPIO52, 160 GPIO53, 161 GPIO54, 162 GPIO55, 163 164 GPIO64, 165 GPIO65, 166 GPIO66, 167 GPIO67, 168 GPIO68, 169 GPIO69, 170 GPIO70, 171 GPIO71, 172 GPIO72, 173 GPIO73, 174 GPIO74, 175 GPIO75, 176 GPIO76, 177 GPIO77, 178 GPIO78, 179 GPIO79, 180 GPIO80, 181 GPIO81, 182 GPIO82, 183 GPIO83, 184 GPIO84, 185 GPIO85, 186 GPIO86, 187 GPIO87, 188 GPIO88, 189 }; 190 191 extern int ltq_pinctrl_register(struct platform_device *pdev, 192 struct ltq_pinmux_info *info); 193 extern int ltq_pinctrl_unregister(struct platform_device *pdev); 194 #endif /* __PINCTRL_PXA3XX_H */ 195