[J-u-boot.git] / include / sh_pfc.h

/*
 * SuperH Pin Function Controller Support
 * Copy from Linux kernel. (include/linux/sh_pfc.h)
 *
 * Copyright (C) 2015 Renesas Electronics Corporation
 * 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

typedef unsigned short pinmux_enum_t;
typedef unsigned short pinmux_flag_t;

#define PINMUX_TYPE_NONE            0
#define PINMUX_TYPE_FUNCTION        1
#define PINMUX_TYPE_GPIO            2
#define PINMUX_TYPE_OUTPUT          3
#define PINMUX_TYPE_INPUT           4
#define PINMUX_TYPE_INPUT_PULLUP    5
#define PINMUX_TYPE_INPUT_PULLDOWN  6

#define PINMUX_FLAG_TYPE            (0x7)
#define PINMUX_FLAG_WANT_PULLUP     (1 << 3)
#define PINMUX_FLAG_WANT_PULLDOWN   (1 << 4)

#define PINMUX_FLAG_DBIT_SHIFT      5
#define PINMUX_FLAG_DBIT            (0x1f << PINMUX_FLAG_DBIT_SHIFT)
#define PINMUX_FLAG_DREG_SHIFT      10
#define PINMUX_FLAG_DREG            (0x3f << PINMUX_FLAG_DREG_SHIFT)

struct pinmux_gpio {
	pinmux_enum_t enum_id;
	pinmux_flag_t flags;
};

#define PINMUX_GPIO(gpio, data_or_mark)[gpio] = { data_or_mark }
#define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0

struct pinmux_cfg_reg {
	unsigned long reg, reg_width, field_width;
	unsigned long *cnt;
	pinmux_enum_t *enum_ids;
	unsigned long *var_field_width;
};

#define PINMUX_CFG_REG(name, r, r_width, f_width) \
	.reg = r, .reg_width = r_width, .field_width = f_width,		\
	.cnt = (unsigned long [r_width / f_width]) {}, \
	.enum_ids = (pinmux_enum_t [(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,	\
	.cnt = (unsigned long [r_width]) {}, \
	.var_field_width = (unsigned long [r_width]) { var_fw0, var_fwn, 0 }, \
	.enum_ids = (pinmux_enum_t [])

struct pinmux_data_reg {
	unsigned long reg, reg_width, reg_shadow;
	pinmux_enum_t *enum_ids;
	void *mapped_reg;
};

#define PINMUX_DATA_REG(name, r, r_width) \
	.reg = r, .reg_width = r_width,	\
	.enum_ids = (pinmux_enum_t [r_width]) \

struct pinmux_irq {
	int irq;
	pinmux_enum_t *enum_ids;
};

#define PINMUX_IRQ(irq_nr, ids...)			   \
	{ .irq = irq_nr, .enum_ids = (pinmux_enum_t []) { ids, 0 } }	\

struct pinmux_range {
	pinmux_enum_t begin;
	pinmux_enum_t end;
	pinmux_enum_t force;
};

struct pinmux_info {
	char *name;
	pinmux_enum_t reserved_id;
	struct pinmux_range data;
	struct pinmux_range input;
	struct pinmux_range input_pd;
	struct pinmux_range input_pu;
	struct pinmux_range output;
	struct pinmux_range mark;
	struct pinmux_range function;

	unsigned first_gpio, last_gpio;

	struct pinmux_gpio *gpios;
	struct pinmux_cfg_reg *cfg_regs;
	struct pinmux_data_reg *data_regs;

	pinmux_enum_t *gpio_data;
	unsigned int gpio_data_size;

	struct pinmux_irq *gpio_irq;
	unsigned int gpio_irq_size;

	struct resource *resource;
	unsigned int num_resources;
	unsigned long unlock_reg;
};

int register_pinmux(struct pinmux_info *pip);
int unregister_pinmux(struct pinmux_info *pip);

/* helper macro for port */
#define PORT_1(fn, pfx, sfx) fn(pfx, sfx)

#define PORT_10(fn, pfx, sfx) \
	PORT_1(fn, pfx##0, sfx), PORT_1(fn, pfx##1, sfx),	\
	PORT_1(fn, pfx##2, sfx), PORT_1(fn, pfx##3, sfx),	\
	PORT_1(fn, pfx##4, sfx), PORT_1(fn, pfx##5, sfx),	\
	PORT_1(fn, pfx##6, sfx), PORT_1(fn, pfx##7, sfx),	\
	PORT_1(fn, pfx##8, sfx), PORT_1(fn, pfx##9, sfx)

#define PORT_90(fn, pfx, sfx) \
	PORT_10(fn, pfx##1, sfx), PORT_10(fn, pfx##2, sfx),	\
	PORT_10(fn, pfx##3, sfx), PORT_10(fn, pfx##4, sfx),	\
	PORT_10(fn, pfx##5, sfx), PORT_10(fn, pfx##6, sfx),	\
	PORT_10(fn, pfx##7, sfx), PORT_10(fn, pfx##8, sfx),	\
	PORT_10(fn, pfx##9, sfx)

#define _PORT_ALL(pfx, sfx) pfx##_##sfx
#define _GPIO_PORT(pfx, sfx) PINMUX_GPIO(GPIO_PORT##pfx, PORT##pfx##_DATA)
#define PORT_ALL(str)	CPU_ALL_PORT(_PORT_ALL, PORT, str)
#define GPIO_PORT_ALL()	CPU_ALL_PORT(_GPIO_PORT, , unused)
#define GPIO_FN(str) PINMUX_GPIO(GPIO_FN_##str, str##_MARK)
#define GPIO_GFN(str) PINMUX_GPIO(GPIO_GFN_##str, str##_GMARK)
#define GPIO_IFN(str) PINMUX_GPIO(GPIO_IFN_##str, str##_IMARK)

/* helper macro for pinmux_enum_t */
#define PORT_DATA_I(nr)	\
	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_IN)

#define PORT_DATA_I_PD(nr)	\
	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0,	\
		    PORT##nr##_IN, PORT##nr##_IN_PD)

#define PORT_DATA_I_PU(nr)	\
	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0,	\
		    PORT##nr##_IN, PORT##nr##_IN_PU)

#define PORT_DATA_I_PU_PD(nr)	\
	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0,			\
		    PORT##nr##_IN, PORT##nr##_IN_PD, PORT##nr##_IN_PU)

#define PORT_DATA_O(nr)		\
	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT)

#define PORT_DATA_IO(nr)	\
	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT,	\
		    PORT##nr##_IN)

#define PORT_DATA_IO_PD(nr)	\
	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT,	\
		    PORT##nr##_IN, PORT##nr##_IN_PD)

#define PORT_DATA_IO_PU(nr)	\
	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT,	\
		    PORT##nr##_IN, PORT##nr##_IN_PU)

#define PORT_DATA_IO_PU_PD(nr)	\
	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT,	\
		    PORT##nr##_IN, PORT##nr##_IN_PD, PORT##nr##_IN_PU)

/* helper macro for top 4 bits in PORTnCR */
#define _PCRH(in, in_pd, in_pu, out)	\
	0, (out), (in), 0,		\
	0, 0, 0, 0,			\
	0, 0, (in_pd), 0,		\
	0, 0, (in_pu), 0

#define PORTCR(nr, reg)							\
	{								\
		PINMUX_CFG_REG("PORT" nr "CR", reg, 8, 4) {		\
			_PCRH(PORT##nr##_IN, PORT##nr##_IN_PD,		\
			      PORT##nr##_IN_PU, PORT##nr##_OUT),	\
				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 */
Commit	Line	Data
d764c504 NI	1	/*
	2	* SuperH Pin Function Controller Support
	3	* Copy from Linux kernel. (include/linux/sh_pfc.h)
	4	*
ee8f0cb3	5	* Copyright (C) 2015 Renesas Electronics Corporation
d764c504 NI	6	* Copyright (c) 2008 Magnus Damm
	7	*
	8	* This file is subject to the terms and conditions of the GNU General Public
	9	* License. See the file "COPYING" in the main directory of this archive
	10	* for more details.
	11	*/
	12
	13	#ifndef __SH_PFC_H
	14	#define __SH_PFC_H
	15
	16	typedef unsigned short pinmux_enum_t;
	17	typedef unsigned short pinmux_flag_t;
	18
	19	#define PINMUX_TYPE_NONE 0
	20	#define PINMUX_TYPE_FUNCTION 1
	21	#define PINMUX_TYPE_GPIO 2
	22	#define PINMUX_TYPE_OUTPUT 3
	23	#define PINMUX_TYPE_INPUT 4
	24	#define PINMUX_TYPE_INPUT_PULLUP 5
	25	#define PINMUX_TYPE_INPUT_PULLDOWN 6
	26
	27	#define PINMUX_FLAG_TYPE (0x7)
	28	#define PINMUX_FLAG_WANT_PULLUP (1 << 3)
	29	#define PINMUX_FLAG_WANT_PULLDOWN (1 << 4)
	30
	31	#define PINMUX_FLAG_DBIT_SHIFT 5
	32	#define PINMUX_FLAG_DBIT (0x1f << PINMUX_FLAG_DBIT_SHIFT)
	33	#define PINMUX_FLAG_DREG_SHIFT 10
	34	#define PINMUX_FLAG_DREG (0x3f << PINMUX_FLAG_DREG_SHIFT)
	35
	36	struct pinmux_gpio {
	37	pinmux_enum_t enum_id;
	38	pinmux_flag_t flags;
	39	};
	40
	41	#define PINMUX_GPIO(gpio, data_or_mark)[gpio] = { data_or_mark }
	42	#define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0
	43
	44	struct pinmux_cfg_reg {
	45	unsigned long reg, reg_width, field_width;
	46	unsigned long *cnt;
	47	pinmux_enum_t *enum_ids;
	48	unsigned long *var_field_width;
	49	};
	50
	51	#define PINMUX_CFG_REG(name, r, r_width, f_width) \
	52	.reg = r, .reg_width = r_width, .field_width = f_width, \
	53	.cnt = (unsigned long [r_width / f_width]) {}, \
	54	.enum_ids = (pinmux_enum_t [(r_width / f_width) * (1 << f_width)])
	55
	56	#define PINMUX_CFG_REG_VAR(name, r, r_width, var_fw0, var_fwn...) \
	57	.reg = r, .reg_width = r_width, \
	58	.cnt = (unsigned long [r_width]) {}, \
	59	.var_field_width = (unsigned long [r_width]) { var_fw0, var_fwn, 0 }, \
	60	.enum_ids = (pinmux_enum_t [])
	61
	62	struct pinmux_data_reg {
	63	unsigned long reg, reg_width, reg_shadow;
	64	pinmux_enum_t *enum_ids;
	65	void *mapped_reg;
	66	};
	67
	68	#define PINMUX_DATA_REG(name, r, r_width) \
	69	.reg = r, .reg_width = r_width, \
70	.enum_ids = (pinmux_enum_t [r_width]) \
71
72	struct pinmux_irq {
73	int irq;
74	pinmux_enum_t *enum_ids;
75	};
76
77	#define PINMUX_IRQ(irq_nr, ids...) \
78	{ .irq = irq_nr, .enum_ids = (pinmux_enum_t []) { ids, 0 } } \
79
80	struct pinmux_range {
81	pinmux_enum_t begin;
82	pinmux_enum_t end;
83	pinmux_enum_t force;
84	};
85
86	struct pinmux_info {
87	char *name;
88	pinmux_enum_t reserved_id;
89	struct pinmux_range data;
90	struct pinmux_range input;
91	struct pinmux_range input_pd;
92	struct pinmux_range input_pu;
93	struct pinmux_range output;
94	struct pinmux_range mark;
95	struct pinmux_range function;
96
97	unsigned first_gpio, last_gpio;
98
99	struct pinmux_gpio *gpios;
100	struct pinmux_cfg_reg *cfg_regs;
101	struct pinmux_data_reg *data_regs;
102
103	pinmux_enum_t *gpio_data;
104	unsigned int gpio_data_size;
105
106	struct pinmux_irq *gpio_irq;
107	unsigned int gpio_irq_size;
108
109	struct resource *resource;
110	unsigned int num_resources;
111	unsigned long unlock_reg;
112	};
113
114	int register_pinmux(struct pinmux_info *pip);
115	int unregister_pinmux(struct pinmux_info *pip);
116
117	/* helper macro for port */
118	#define PORT_1(fn, pfx, sfx) fn(pfx, sfx)
119
120	#define PORT_10(fn, pfx, sfx) \
121	PORT_1(fn, pfx##0, sfx), PORT_1(fn, pfx##1, sfx), \
122	PORT_1(fn, pfx##2, sfx), PORT_1(fn, pfx##3, sfx), \
123	PORT_1(fn, pfx##4, sfx), PORT_1(fn, pfx##5, sfx), \
124	PORT_1(fn, pfx##6, sfx), PORT_1(fn, pfx##7, sfx), \
125	PORT_1(fn, pfx##8, sfx), PORT_1(fn, pfx##9, sfx)
126
127	#define PORT_90(fn, pfx, sfx) \
128	PORT_10(fn, pfx##1, sfx), PORT_10(fn, pfx##2, sfx), \
129	PORT_10(fn, pfx##3, sfx), PORT_10(fn, pfx##4, sfx), \
130	PORT_10(fn, pfx##5, sfx), PORT_10(fn, pfx##6, sfx), \
131	PORT_10(fn, pfx##7, sfx), PORT_10(fn, pfx##8, sfx), \
132	PORT_10(fn, pfx##9, sfx)
133
134	#define _PORT_ALL(pfx, sfx) pfx##_##sfx
135	#define _GPIO_PORT(pfx, sfx) PINMUX_GPIO(GPIO_PORT##pfx, PORT##pfx##_DATA)
136	#define PORT_ALL(str) CPU_ALL_PORT(_PORT_ALL, PORT, str)
137	#define GPIO_PORT_ALL() CPU_ALL_PORT(_GPIO_PORT, , unused)
138	#define GPIO_FN(str) PINMUX_GPIO(GPIO_FN_##str, str##_MARK)
ee8f0cb3 NI	139	#define GPIO_GFN(str) PINMUX_GPIO(GPIO_GFN_##str, str##_GMARK)
ee8f0cb3 NI	140	#define GPIO_IFN(str) PINMUX_GPIO(GPIO_IFN_##str, str##_IMARK)
d764c504 NI	141
	142	/* helper macro for pinmux_enum_t */
	143	#define PORT_DATA_I(nr) \
	144	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_IN)
	145
	146	#define PORT_DATA_I_PD(nr) \
	147	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \
	148	PORT##nr##_IN, PORT##nr##_IN_PD)
	149
	150	#define PORT_DATA_I_PU(nr) \
	151	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \
	152	PORT##nr##_IN, PORT##nr##_IN_PU)
	153
	154	#define PORT_DATA_I_PU_PD(nr) \
	155	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \
	156	PORT##nr##_IN, PORT##nr##_IN_PD, PORT##nr##_IN_PU)
	157
	158	#define PORT_DATA_O(nr) \
	159	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT)
	160
	161	#define PORT_DATA_IO(nr) \
	162	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \
	163	PORT##nr##_IN)
	164
	165	#define PORT_DATA_IO_PD(nr) \
	166	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \
	167	PORT##nr##_IN, PORT##nr##_IN_PD)
	168
	169	#define PORT_DATA_IO_PU(nr) \
	170	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \
	171	PORT##nr##_IN, PORT##nr##_IN_PU)
	172
	173	#define PORT_DATA_IO_PU_PD(nr) \
	174	PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \
	175	PORT##nr##_IN, PORT##nr##_IN_PD, PORT##nr##_IN_PU)
	176
	177	/* helper macro for top 4 bits in PORTnCR */
	178	#define _PCRH(in, in_pd, in_pu, out) \
	179	0, (out), (in), 0, \
	180	0, 0, 0, 0, \
	181	0, 0, (in_pd), 0, \
	182	0, 0, (in_pu), 0
	183
	184	#define PORTCR(nr, reg) \
	185	{ \
	186	PINMUX_CFG_REG("PORT" nr "CR", reg, 8, 4) { \
	187	_PCRH(PORT##nr##_IN, PORT##nr##_IN_PD, \
	188	PORT##nr##_IN_PU, PORT##nr##_OUT), \
	189	PORT##nr##_FN0, PORT##nr##_FN1, \
	190	PORT##nr##_FN2, PORT##nr##_FN3, \
	191	PORT##nr##_FN4, PORT##nr##_FN5, \
	192	PORT##nr##_FN6, PORT##nr##_FN7 } \
	193	}
	194
	195	#endif /* __SH_PFC_H */