1#ifndef PINCTRL_PINCTRL_NOMADIK_H 2#define PINCTRL_PINCTRL_NOMADIK_H 3 4/* Package definitions */ 5#define PINCTRL_NMK_STN8815 0 6#define PINCTRL_NMK_DB8500 1 7#define PINCTRL_NMK_DB8540 2 8 9/* Alternate functions: function C is set in hw by setting both A and B */ 10#define NMK_GPIO_ALT_GPIO 0 11#define NMK_GPIO_ALT_A 1 12#define NMK_GPIO_ALT_B 2 13#define NMK_GPIO_ALT_C (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B) 14 15#define NMK_GPIO_ALT_CX_SHIFT 2 16#define NMK_GPIO_ALT_C1 ((1<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) 17#define NMK_GPIO_ALT_C2 ((2<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) 18#define NMK_GPIO_ALT_C3 ((3<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) 19#define NMK_GPIO_ALT_C4 ((4<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) 20 21#define PRCM_GPIOCR_ALTCX(pin_num,\ 22 altc1_used, altc1_ri, altc1_cb,\ 23 altc2_used, altc2_ri, altc2_cb,\ 24 altc3_used, altc3_ri, altc3_cb,\ 25 altc4_used, altc4_ri, altc4_cb)\ 26{\ 27 .pin = pin_num,\ 28 .altcx[PRCM_IDX_GPIOCR_ALTC1] = {\ 29 .used = altc1_used,\ 30 .reg_index = altc1_ri,\ 31 .control_bit = altc1_cb\ 32 },\ 33 .altcx[PRCM_IDX_GPIOCR_ALTC2] = {\ 34 .used = altc2_used,\ 35 .reg_index = altc2_ri,\ 36 .control_bit = altc2_cb\ 37 },\ 38 .altcx[PRCM_IDX_GPIOCR_ALTC3] = {\ 39 .used = altc3_used,\ 40 .reg_index = altc3_ri,\ 41 .control_bit = altc3_cb\ 42 },\ 43 .altcx[PRCM_IDX_GPIOCR_ALTC4] = {\ 44 .used = altc4_used,\ 45 .reg_index = altc4_ri,\ 46 .control_bit = altc4_cb\ 47 },\ 48} 49 50/** 51 * enum prcm_gpiocr_reg_index 52 * Used to reference an PRCM GPIOCR register address. 53 */ 54enum prcm_gpiocr_reg_index { 55 PRCM_IDX_GPIOCR1, 56 PRCM_IDX_GPIOCR2, 57 PRCM_IDX_GPIOCR3 58}; 59/** 60 * enum prcm_gpiocr_altcx_index 61 * Used to reference an Other alternate-C function. 62 */ 63enum prcm_gpiocr_altcx_index { 64 PRCM_IDX_GPIOCR_ALTC1, 65 PRCM_IDX_GPIOCR_ALTC2, 66 PRCM_IDX_GPIOCR_ALTC3, 67 PRCM_IDX_GPIOCR_ALTC4, 68 PRCM_IDX_GPIOCR_ALTC_MAX, 69}; 70 71/** 72 * struct prcm_gpio_altcx - Other alternate-C function 73 * @used: other alternate-C function availability 74 * @reg_index: PRCM GPIOCR register index used to control the function 75 * @control_bit: PRCM GPIOCR bit used to control the function 76 */ 77struct prcm_gpiocr_altcx { 78 bool used:1; 79 u8 reg_index:2; 80 u8 control_bit:5; 81} __packed; 82 83/** 84 * struct prcm_gpio_altcx_pin_desc - Other alternate-C pin 85 * @pin: The pin number 86 * @altcx: array of other alternate-C[1-4] functions 87 */ 88struct prcm_gpiocr_altcx_pin_desc { 89 unsigned short pin; 90 struct prcm_gpiocr_altcx altcx[PRCM_IDX_GPIOCR_ALTC_MAX]; 91}; 92 93/** 94 * struct nmk_function - Nomadik pinctrl mux function 95 * @name: The name of the function, exported to pinctrl core. 96 * @groups: An array of pin groups that may select this function. 97 * @ngroups: The number of entries in @groups. 98 */ 99struct nmk_function { 100 const char *name; 101 const char * const *groups; 102 unsigned ngroups; 103}; 104 105/** 106 * struct nmk_pingroup - describes a Nomadik pin group 107 * @name: the name of this specific pin group 108 * @pins: an array of discrete physical pins used in this group, taken 109 * from the driver-local pin enumeration space 110 * @num_pins: the number of pins in this group array, i.e. the number of 111 * elements in .pins so we can iterate over that array 112 * @altsetting: the altsetting to apply to all pins in this group to 113 * configure them to be used by a function 114 */ 115struct nmk_pingroup { 116 const char *name; 117 const unsigned int *pins; 118 const unsigned npins; 119 int altsetting; 120}; 121 122/** 123 * struct nmk_pinctrl_soc_data - Nomadik pin controller per-SoC configuration 124 * @gpio_ranges: An array of GPIO ranges for this SoC 125 * @gpio_num_ranges: The number of GPIO ranges for this SoC 126 * @pins: An array describing all pins the pin controller affects. 127 * All pins which are also GPIOs must be listed first within the 128 * array, and be numbered identically to the GPIO controller's 129 * numbering. 130 * @npins: The number of entries in @pins. 131 * @functions: The functions supported on this SoC. 132 * @nfunction: The number of entries in @functions. 133 * @groups: An array describing all pin groups the pin SoC supports. 134 * @ngroups: The number of entries in @groups. 135 * @altcx_pins: The pins that support Other alternate-C function on this SoC 136 * @npins_altcx: The number of Other alternate-C pins 137 * @prcm_gpiocr_registers: The array of PRCM GPIOCR registers on this SoC 138 */ 139struct nmk_pinctrl_soc_data { 140 struct pinctrl_gpio_range *gpio_ranges; 141 unsigned gpio_num_ranges; 142 const struct pinctrl_pin_desc *pins; 143 unsigned npins; 144 const struct nmk_function *functions; 145 unsigned nfunctions; 146 const struct nmk_pingroup *groups; 147 unsigned ngroups; 148 const struct prcm_gpiocr_altcx_pin_desc *altcx_pins; 149 unsigned npins_altcx; 150 const u16 *prcm_gpiocr_registers; 151}; 152 153#ifdef CONFIG_PINCTRL_STN8815 154 155void nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc); 156 157#else 158 159static inline void 160nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc) 161{ 162} 163 164#endif 165 166#ifdef CONFIG_PINCTRL_DB8500 167 168void nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc); 169 170#else 171 172static inline void 173nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc) 174{ 175} 176 177#endif 178 179#ifdef CONFIG_PINCTRL_DB8540 180 181void nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc); 182 183#else 184 185static inline void 186nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc) 187{ 188} 189 190#endif 191 192#endif /* PINCTRL_PINCTRL_NOMADIK_H */ 193