--- /dev/null
+/*
+ * 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 */
Code Review / kvmfornfv.git / blobdiff