diff options
Diffstat (limited to 'drivers/pinctrl/sh-pfc/sh_pfc.h')
| -rw-r--r-- | drivers/pinctrl/sh-pfc/sh_pfc.h | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/drivers/pinctrl/sh-pfc/sh_pfc.h b/drivers/pinctrl/sh-pfc/sh_pfc.h new file mode 100644 index 000000000..c7508d5f6 --- /dev/null +++ b/drivers/pinctrl/sh-pfc/sh_pfc.h @@ -0,0 +1,324 @@ +/* + * SuperH Pin Function Controller Support + * + * Copyright (c) 2008 Magnus Damm + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#ifndef __SH_PFC_H +#define __SH_PFC_H + +#include <linux/bug.h> +#include <linux/stringify.h> + +enum { + PINMUX_TYPE_NONE, + PINMUX_TYPE_FUNCTION, + PINMUX_TYPE_GPIO, + PINMUX_TYPE_OUTPUT, + PINMUX_TYPE_INPUT, +}; + +#define SH_PFC_PIN_CFG_INPUT (1 << 0) +#define SH_PFC_PIN_CFG_OUTPUT (1 << 1) +#define SH_PFC_PIN_CFG_PULL_UP (1 << 2) +#define SH_PFC_PIN_CFG_PULL_DOWN (1 << 3) +#define SH_PFC_PIN_CFG_NO_GPIO (1 << 31) + +struct sh_pfc_pin { + u16 pin; + u16 enum_id; + const char *name; + unsigned int configs; +}; + +#define SH_PFC_PIN_GROUP(n) \ + { \ + .name = #n, \ + .pins = n##_pins, \ + .mux = n##_mux, \ + .nr_pins = ARRAY_SIZE(n##_pins), \ + } + +struct sh_pfc_pin_group { + const char *name; + const unsigned int *pins; + const unsigned int *mux; + unsigned int nr_pins; +}; + +#define SH_PFC_FUNCTION(n) \ + { \ + .name = #n, \ + .groups = n##_groups, \ + .nr_groups = ARRAY_SIZE(n##_groups), \ + } + +struct sh_pfc_function { + const char *name; + const char * const *groups; + unsigned int nr_groups; +}; + +struct pinmux_func { + u16 enum_id; + const char *name; +}; + +struct pinmux_cfg_reg { + u32 reg; + u8 reg_width, field_width; + const u16 *enum_ids; + const u8 *var_field_width; +}; + +#define PINMUX_CFG_REG(name, r, r_width, f_width) \ + .reg = r, .reg_width = r_width, .field_width = f_width, \ + .enum_ids = (const u16 [(r_width / f_width) * (1 << f_width)]) + +#define PINMUX_CFG_REG_VAR(name, r, r_width, var_fw0, var_fwn...) \ + .reg = r, .reg_width = r_width, \ + .var_field_width = (const u8 [r_width]) \ + { var_fw0, var_fwn, 0 }, \ + .enum_ids = (const u16 []) + +struct pinmux_data_reg { + u32 reg; + u8 reg_width; + const u16 *enum_ids; +}; + +#define PINMUX_DATA_REG(name, r, r_width) \ + .reg = r, .reg_width = r_width, \ + .enum_ids = (const u16 [r_width]) \ + +struct pinmux_irq { + int irq; + const short *gpios; +}; + +#ifdef CONFIG_ARCH_MULTIPLATFORM +#define PINMUX_IRQ(irq_nr, ids...) \ + { .gpios = (const short []) { ids, -1 } } +#else +#define PINMUX_IRQ(irq_nr, ids...) \ + { .irq = irq_nr, .gpios = (const short []) { ids, -1 } } +#endif + +struct pinmux_range { + u16 begin; + u16 end; + u16 force; +}; + +struct sh_pfc; + +struct sh_pfc_soc_operations { + int (*init)(struct sh_pfc *pfc); + unsigned int (*get_bias)(struct sh_pfc *pfc, unsigned int pin); + void (*set_bias)(struct sh_pfc *pfc, unsigned int pin, + unsigned int bias); +}; + +struct sh_pfc_soc_info { + const char *name; + const struct sh_pfc_soc_operations *ops; + + struct pinmux_range input; + struct pinmux_range output; + struct pinmux_range function; + + const struct sh_pfc_pin *pins; + unsigned int nr_pins; + const struct sh_pfc_pin_group *groups; + unsigned int nr_groups; + const struct sh_pfc_function *functions; + unsigned int nr_functions; + + const struct pinmux_func *func_gpios; + unsigned int nr_func_gpios; + + const struct pinmux_cfg_reg *cfg_regs; + const struct pinmux_data_reg *data_regs; + + const u16 *gpio_data; + unsigned int gpio_data_size; + + const struct pinmux_irq *gpio_irq; + unsigned int gpio_irq_size; + + u32 unlock_reg; +}; + +/* ----------------------------------------------------------------------------- + * Helper macros to create pin and port lists + */ + +/* + * sh_pfc_soc_info gpio_data array macros + */ + +#define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0 + +#define PINMUX_IPSR_NOGP(ispr, fn) \ + PINMUX_DATA(fn##_MARK, FN_##fn) +#define PINMUX_IPSR_DATA(ipsr, fn) \ + PINMUX_DATA(fn##_MARK, FN_##fn, FN_##ipsr) +#define PINMUX_IPSR_NOGM(ispr, fn, ms) \ + PINMUX_DATA(fn##_MARK, FN_##fn, FN_##ms) +#define PINMUX_IPSR_NOFN(ipsr, fn, ms) \ + PINMUX_DATA(fn##_MARK, FN_##ipsr, FN_##ms) +#define PINMUX_IPSR_MSEL(ipsr, fn, ms) \ + PINMUX_DATA(fn##_MARK, FN_##fn, FN_##ipsr, FN_##ms) +#define PINMUX_IPSR_MODSEL_DATA(ipsr, fn, ms) \ + PINMUX_DATA(fn##_MARK, FN_##ms, FN_##ipsr, FN_##fn) + +/* + * GP port style (32 ports banks) + */ + +#define PORT_GP_1(bank, pin, fn, sfx) fn(bank, pin, GP_##bank##_##pin, sfx) + +#define PORT_GP_32(bank, fn, sfx) \ + PORT_GP_1(bank, 0, fn, sfx), PORT_GP_1(bank, 1, fn, sfx), \ + PORT_GP_1(bank, 2, fn, sfx), PORT_GP_1(bank, 3, fn, sfx), \ + PORT_GP_1(bank, 4, fn, sfx), PORT_GP_1(bank, 5, fn, sfx), \ + PORT_GP_1(bank, 6, fn, sfx), PORT_GP_1(bank, 7, fn, sfx), \ + PORT_GP_1(bank, 8, fn, sfx), PORT_GP_1(bank, 9, fn, sfx), \ + PORT_GP_1(bank, 10, fn, sfx), PORT_GP_1(bank, 11, fn, sfx), \ + PORT_GP_1(bank, 12, fn, sfx), PORT_GP_1(bank, 13, fn, sfx), \ + PORT_GP_1(bank, 14, fn, sfx), PORT_GP_1(bank, 15, fn, sfx), \ + PORT_GP_1(bank, 16, fn, sfx), PORT_GP_1(bank, 17, fn, sfx), \ + PORT_GP_1(bank, 18, fn, sfx), PORT_GP_1(bank, 19, fn, sfx), \ + PORT_GP_1(bank, 20, fn, sfx), PORT_GP_1(bank, 21, fn, sfx), \ + PORT_GP_1(bank, 22, fn, sfx), PORT_GP_1(bank, 23, fn, sfx), \ + PORT_GP_1(bank, 24, fn, sfx), PORT_GP_1(bank, 25, fn, sfx), \ + PORT_GP_1(bank, 26, fn, sfx), PORT_GP_1(bank, 27, fn, sfx), \ + PORT_GP_1(bank, 28, fn, sfx), PORT_GP_1(bank, 29, fn, sfx), \ + PORT_GP_1(bank, 30, fn, sfx), PORT_GP_1(bank, 31, fn, sfx) + +#define PORT_GP_32_REV(bank, fn, sfx) \ + PORT_GP_1(bank, 31, fn, sfx), PORT_GP_1(bank, 30, fn, sfx), \ + PORT_GP_1(bank, 29, fn, sfx), PORT_GP_1(bank, 28, fn, sfx), \ + PORT_GP_1(bank, 27, fn, sfx), PORT_GP_1(bank, 26, fn, sfx), \ + PORT_GP_1(bank, 25, fn, sfx), PORT_GP_1(bank, 24, fn, sfx), \ + PORT_GP_1(bank, 23, fn, sfx), PORT_GP_1(bank, 22, fn, sfx), \ + PORT_GP_1(bank, 21, fn, sfx), PORT_GP_1(bank, 20, fn, sfx), \ + PORT_GP_1(bank, 19, fn, sfx), PORT_GP_1(bank, 18, fn, sfx), \ + PORT_GP_1(bank, 17, fn, sfx), PORT_GP_1(bank, 16, fn, sfx), \ + PORT_GP_1(bank, 15, fn, sfx), PORT_GP_1(bank, 14, fn, sfx), \ + PORT_GP_1(bank, 13, fn, sfx), PORT_GP_1(bank, 12, fn, sfx), \ + PORT_GP_1(bank, 11, fn, sfx), PORT_GP_1(bank, 10, fn, sfx), \ + PORT_GP_1(bank, 9, fn, sfx), PORT_GP_1(bank, 8, fn, sfx), \ + PORT_GP_1(bank, 7, fn, sfx), PORT_GP_1(bank, 6, fn, sfx), \ + PORT_GP_1(bank, 5, fn, sfx), PORT_GP_1(bank, 4, fn, sfx), \ + PORT_GP_1(bank, 3, fn, sfx), PORT_GP_1(bank, 2, fn, sfx), \ + PORT_GP_1(bank, 1, fn, sfx), PORT_GP_1(bank, 0, fn, sfx) + +/* GP_ALL(suffix) - Expand to a list of GP_#_#_suffix */ +#define _GP_ALL(bank, pin, name, sfx) name##_##sfx +#define GP_ALL(str) CPU_ALL_PORT(_GP_ALL, str) + +/* PINMUX_GPIO_GP_ALL - Expand to a list of sh_pfc_pin entries */ +#define _GP_GPIO(bank, _pin, _name, sfx) \ + [(bank * 32) + _pin] = { \ + .pin = (bank * 32) + _pin, \ + .name = __stringify(_name), \ + .enum_id = _name##_DATA, \ + } +#define PINMUX_GPIO_GP_ALL() CPU_ALL_PORT(_GP_GPIO, unused) + +/* PINMUX_DATA_GP_ALL - Expand to a list of name_DATA, name_FN marks */ +#define _GP_DATA(bank, pin, name, sfx) PINMUX_DATA(name##_DATA, name##_FN) +#define PINMUX_DATA_GP_ALL() CPU_ALL_PORT(_GP_DATA, unused) + +/* + * PORT style (linear pin space) + */ + +#define PORT_1(pn, fn, pfx, sfx) fn(pn, pfx, sfx) + +#define PORT_10(pn, fn, pfx, sfx) \ + PORT_1(pn, fn, pfx##0, sfx), PORT_1(pn+1, fn, pfx##1, sfx), \ + PORT_1(pn+2, fn, pfx##2, sfx), PORT_1(pn+3, fn, pfx##3, sfx), \ + PORT_1(pn+4, fn, pfx##4, sfx), PORT_1(pn+5, fn, pfx##5, sfx), \ + PORT_1(pn+6, fn, pfx##6, sfx), PORT_1(pn+7, fn, pfx##7, sfx), \ + PORT_1(pn+8, fn, pfx##8, sfx), PORT_1(pn+9, fn, pfx##9, sfx) + +#define PORT_90(pn, fn, pfx, sfx) \ + PORT_10(pn+10, fn, pfx##1, sfx), PORT_10(pn+20, fn, pfx##2, sfx), \ + PORT_10(pn+30, fn, pfx##3, sfx), PORT_10(pn+40, fn, pfx##4, sfx), \ + PORT_10(pn+50, fn, pfx##5, sfx), PORT_10(pn+60, fn, pfx##6, sfx), \ + PORT_10(pn+70, fn, pfx##7, sfx), PORT_10(pn+80, fn, pfx##8, sfx), \ + PORT_10(pn+90, fn, pfx##9, sfx) + +/* PORT_ALL(suffix) - Expand to a list of PORT_#_suffix */ +#define _PORT_ALL(pn, pfx, sfx) pfx##_##sfx +#define PORT_ALL(str) CPU_ALL_PORT(_PORT_ALL, PORT, str) + +/* PINMUX_GPIO - Expand to a sh_pfc_pin entry */ +#define PINMUX_GPIO(_pin) \ + [GPIO_##_pin] = { \ + .pin = (u16)-1, \ + .name = __stringify(GPIO_##_pin), \ + .enum_id = _pin##_DATA, \ + } + +/* SH_PFC_PIN_CFG - Expand to a sh_pfc_pin entry (named PORT#) with config */ +#define SH_PFC_PIN_CFG(_pin, cfgs) \ + { \ + .pin = _pin, \ + .name = __stringify(PORT##_pin), \ + .enum_id = PORT##_pin##_DATA, \ + .configs = cfgs, \ + } + +/* SH_PFC_PIN_NAMED - Expand to a sh_pfc_pin entry with the given name */ +#define SH_PFC_PIN_NAMED(row, col, _name) \ + { \ + .pin = PIN_NUMBER(row, col), \ + .name = __stringify(PIN_##_name), \ + .configs = SH_PFC_PIN_CFG_NO_GPIO, \ + } + +/* PINMUX_DATA_ALL - Expand to a list of PORT_name_DATA, PORT_name_FN0, + * PORT_name_OUT, PORT_name_IN marks + */ +#define _PORT_DATA(pn, pfx, sfx) \ + PINMUX_DATA(PORT##pfx##_DATA, PORT##pfx##_FN0, \ + PORT##pfx##_OUT, PORT##pfx##_IN) +#define PINMUX_DATA_ALL() CPU_ALL_PORT(_PORT_DATA, , unused) + +/* GPIO_FN(name) - Expand to a sh_pfc_pin entry for a function GPIO */ +#define PINMUX_GPIO_FN(gpio, base, data_or_mark) \ + [gpio - (base)] = { \ + .name = __stringify(gpio), \ + .enum_id = data_or_mark, \ + } +#define GPIO_FN(str) \ + PINMUX_GPIO_FN(GPIO_FN_##str, PINMUX_FN_BASE, str##_MARK) + +/* + * PORTnCR macro + */ +#define PORTCR(nr, reg) \ + { \ + PINMUX_CFG_REG_VAR("PORT" nr "CR", reg, 8, 2, 2, 1, 3) {\ + /* PULMD[1:0], handled by .set_bias() */ \ + 0, 0, 0, 0, \ + /* IE and OE */ \ + 0, PORT##nr##_OUT, PORT##nr##_IN, 0, \ + /* SEC, not supported */ \ + 0, 0, \ + /* PTMD[2:0] */ \ + PORT##nr##_FN0, PORT##nr##_FN1, \ + PORT##nr##_FN2, PORT##nr##_FN3, \ + PORT##nr##_FN4, PORT##nr##_FN5, \ + PORT##nr##_FN6, PORT##nr##_FN7 \ + } \ + } + +#endif /* __SH_PFC_H */ |