2 * Copyright (C) 2009 Nokia
3 * Copyright (C) 2009-2010 Texas Instruments
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 * published by the Free Software Foundation.
12 #define OMAP_MUX_TERMINATOR 0xffff
14 /* 34xx mux mode options for each pin. See TRM for options */
15 #define OMAP_MUX_MODE0 0
16 #define OMAP_MUX_MODE1 1
17 #define OMAP_MUX_MODE2 2
18 #define OMAP_MUX_MODE3 3
19 #define OMAP_MUX_MODE4 4
20 #define OMAP_MUX_MODE5 5
21 #define OMAP_MUX_MODE6 6
22 #define OMAP_MUX_MODE7 7
24 /* 24xx/34xx mux bit defines */
25 #define OMAP_PULL_ENA (1 << 3)
26 #define OMAP_PULL_UP (1 << 4)
27 #define OMAP_ALTELECTRICALSEL (1 << 5)
29 /* omap3/4/5 specific mux bit defines */
30 #define OMAP_INPUT_EN (1 << 8)
31 #define OMAP_OFF_EN (1 << 9)
32 #define OMAP_OFFOUT_EN (1 << 10)
33 #define OMAP_OFFOUT_VAL (1 << 11)
34 #define OMAP_OFF_PULL_EN (1 << 12)
35 #define OMAP_OFF_PULL_UP (1 << 13)
36 #define OMAP_WAKEUP_EN (1 << 14)
37 #define OMAP_WAKEUP_EVENT (1 << 15)
39 /* Active pin states */
40 #define OMAP_PIN_OUTPUT 0
41 #define OMAP_PIN_INPUT OMAP_INPUT_EN
42 #define OMAP_PIN_INPUT_PULLUP (OMAP_PULL_ENA | OMAP_INPUT_EN \
44 #define OMAP_PIN_INPUT_PULLDOWN (OMAP_PULL_ENA | OMAP_INPUT_EN)
47 #define OMAP_PIN_OFF_NONE 0
48 #define OMAP_PIN_OFF_OUTPUT_HIGH (OMAP_OFF_EN | OMAP_OFFOUT_EN \
50 #define OMAP_PIN_OFF_OUTPUT_LOW (OMAP_OFF_EN | OMAP_OFFOUT_EN)
51 #define OMAP_PIN_OFF_INPUT_PULLUP (OMAP_OFF_EN | OMAP_OFF_PULL_EN \
53 #define OMAP_PIN_OFF_INPUT_PULLDOWN (OMAP_OFF_EN | OMAP_OFF_PULL_EN)
54 #define OMAP_PIN_OFF_WAKEUPENABLE OMAP_WAKEUP_EN
56 #define OMAP_MODE_GPIO(partition, x) (((x) & OMAP_MUX_MODE7) == \
58 #define OMAP_MODE_UART(x) (((x) & OMAP_MUX_MODE7) == OMAP_MUX_MODE0)
60 /* Flags for omapX_mux_init */
61 #define OMAP_PACKAGE_MASK 0xffff
62 #define OMAP_PACKAGE_CBP 6 /* 515-pin 0.40 0.50 */
63 #define OMAP_PACKAGE_CUS 5 /* 423-pin 0.65 */
64 #define OMAP_PACKAGE_CBB 4 /* 515-pin 0.40 0.50 */
65 #define OMAP_PACKAGE_CBC 3 /* 515-pin 0.50 0.65 */
66 #define OMAP_PACKAGE_ZAC 2 /* 24xx 447-pin POP */
67 #define OMAP_PACKAGE_ZAF 1 /* 2420 447-pin SIP */
70 #define OMAP_MUX_NR_MODES 8 /* Available modes */
71 #define OMAP_MUX_NR_SIDES 2 /* Bottom & top */
74 * omap_mux_init flags definition:
76 * OMAP_GPIO_MUX_MODE, bits 0-2: gpio muxing mode, same like pad control
77 * register which includes values from 0-7.
78 * OMAP_MUX_REG_8BIT: Ensure that access to padconf is done in 8 bits.
79 * The default value is 16 bits.
81 #define OMAP_MUX_GPIO_IN_MODE0 OMAP_MUX_MODE0
82 #define OMAP_MUX_GPIO_IN_MODE1 OMAP_MUX_MODE1
83 #define OMAP_MUX_GPIO_IN_MODE2 OMAP_MUX_MODE2
84 #define OMAP_MUX_GPIO_IN_MODE3 OMAP_MUX_MODE3
85 #define OMAP_MUX_GPIO_IN_MODE4 OMAP_MUX_MODE4
86 #define OMAP_MUX_GPIO_IN_MODE5 OMAP_MUX_MODE5
87 #define OMAP_MUX_GPIO_IN_MODE6 OMAP_MUX_MODE6
88 #define OMAP_MUX_GPIO_IN_MODE7 OMAP_MUX_MODE7
89 #define OMAP_MUX_REG_8BIT (1 << 3)
92 * struct omap_board_data - board specific device data
94 * @flags: additional flags for platform init code
95 * @pads: array of device specific pads
96 * @pads_cnt: ARRAY_SIZE() of pads
98 struct omap_board_data {
101 struct omap_device_pad *pads;
106 * struct mux_partition - contain partition related information
107 * @name: name of the current partition
108 * @flags: flags specific to this partition
109 * @gpio: gpio mux mode
110 * @phys: physical address
111 * @size: partition size
112 * @base: virtual address after ioremap
113 * @muxmodes: list of nodes that belong to a partition
114 * @node: list node for the partitions linked list
116 struct omap_mux_partition {
123 struct list_head muxmodes;
124 struct list_head node;
128 * struct omap_mux - data for omap mux register offset and it's value
129 * @reg_offset: mux register offset from the mux base
131 * @muxnames: available signal modes for a ball
132 * @balls: available balls on the package
137 #ifdef CONFIG_OMAP_MUX
138 char *muxnames[OMAP_MUX_NR_MODES];
139 #ifdef CONFIG_DEBUG_FS
140 char *balls[OMAP_MUX_NR_SIDES];
146 * struct omap_ball - data for balls on omap package
147 * @reg_offset: mux register offset from the mux base
148 * @balls: available balls on the package
152 char *balls[OMAP_MUX_NR_SIDES];
156 * struct omap_board_mux - data for initializing mux registers
157 * @reg_offset: mux register offset from the mux base
158 * @mux_value: desired mux value to set
160 struct omap_board_mux {
165 #define OMAP_DEVICE_PAD_REMUX BIT(1) /* Dynamically remux a pad,
166 needs enable, idle and off
168 #define OMAP_DEVICE_PAD_WAKEUP BIT(0) /* Pad is wake-up capable */
171 * struct omap_device_pad - device specific pad configuration
173 * @flags: pad specific runtime flags
174 * @enable: runtime value for a pad
175 * @idle: idle value for a pad
176 * @off: off value for a pad, defaults to safe mode
177 * @partition: mux partition
180 struct omap_device_pad {
186 struct omap_mux_partition *partition;
187 struct omap_mux *mux;
190 struct omap_hwmod_mux_info;
192 #define OMAP_MUX_STATIC(signal, mode) \
198 #if defined(CONFIG_OMAP_MUX)
201 * omap_mux_init_gpio - initialize a signal based on the GPIO number
203 * @val: Options for the mux register value
205 int omap_mux_init_gpio(int gpio, int val);
208 * omap_mux_init_signal - initialize a signal based on the signal name
209 * @muxname: Mux name in mode0_name.signal_name format
210 * @val: Options for the mux register value
212 int omap_mux_init_signal(const char *muxname, int val);
215 * omap_hwmod_mux_init - initialize hwmod specific mux data
216 * @bpads: Board specific device signal names
217 * @nr_pads: Number of signal names for the device
219 extern struct omap_hwmod_mux_info *
220 omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads);
223 * omap_hwmod_mux - omap hwmod specific pin muxing
224 * @hmux: Pads for a hwmod
225 * @state: Desired _HWMOD_STATE
227 * Called only from omap_hwmod.c, do not use.
229 void omap_hwmod_mux(struct omap_hwmod_mux_info *hmux, u8 state);
231 int omap_mux_get_by_name(const char *muxname,
232 struct omap_mux_partition **found_partition,
233 struct omap_mux **found_mux);
236 static inline int omap_mux_get_by_name(const char *muxname,
237 struct omap_mux_partition **found_partition,
238 struct omap_mux **found_mux)
243 static inline int omap_mux_init_gpio(int gpio, int val)
247 static inline int omap_mux_init_signal(char *muxname, int val)
252 static inline struct omap_hwmod_mux_info *
253 omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads)
258 static inline void omap_hwmod_mux(struct omap_hwmod_mux_info *hmux, u8 state)
262 static struct omap_board_mux *board_mux __maybe_unused;
267 * omap_mux_get_gpio() - get mux register value based on GPIO number
271 u16 omap_mux_get_gpio(int gpio);
274 * omap_mux_set_gpio() - set mux register value based on GPIO number
275 * @val: New mux register value
279 void omap_mux_set_gpio(u16 val, int gpio);
282 * omap_mux_get() - get a mux partition by name
283 * @name: Name of the mux partition
286 struct omap_mux_partition *omap_mux_get(const char *name);
289 * omap_mux_read() - read mux register
290 * @partition: Mux partition
291 * @mux_offset: Offset of the mux register
294 u16 omap_mux_read(struct omap_mux_partition *p, u16 mux_offset);
297 * omap_mux_write() - write mux register
298 * @partition: Mux partition
299 * @val: New mux register value
300 * @mux_offset: Offset of the mux register
302 * This should be only needed for dynamic remuxing of non-gpio signals.
304 void omap_mux_write(struct omap_mux_partition *p, u16 val, u16 mux_offset);
307 * omap_mux_write_array() - write an array of mux registers
308 * @partition: Mux partition
309 * @board_mux: Array of mux registers terminated by MAP_MUX_TERMINATOR
311 * This should be only needed for dynamic remuxing of non-gpio signals.
313 void omap_mux_write_array(struct omap_mux_partition *p,
314 struct omap_board_mux *board_mux);
317 * omap2420_mux_init() - initialize mux system with board specific set
318 * @board_mux: Board specific mux table
319 * @flags: OMAP package type used for the board
321 int omap2420_mux_init(struct omap_board_mux *board_mux, int flags);
324 * omap2430_mux_init() - initialize mux system with board specific set
325 * @board_mux: Board specific mux table
326 * @flags: OMAP package type used for the board
328 int omap2430_mux_init(struct omap_board_mux *board_mux, int flags);
331 * omap3_mux_init() - initialize mux system with board specific set
332 * @board_mux: Board specific mux table
333 * @flags: OMAP package type used for the board
335 int omap3_mux_init(struct omap_board_mux *board_mux, int flags);
338 * omap4_mux_init() - initialize mux system with board specific set
339 * @board_subset: Board specific mux table
340 * @board_wkup_subset: Board specific mux table for wakeup instance
341 * @flags: OMAP package type used for the board
343 int omap4_mux_init(struct omap_board_mux *board_subset,
344 struct omap_board_mux *board_wkup_subset, int flags);
347 * omap_mux_init - private mux init function, do not call
349 int omap_mux_init(const char *name, u32 flags,
350 u32 mux_pbase, u32 mux_size,
351 struct omap_mux *superset,
352 struct omap_mux *package_subset,
353 struct omap_board_mux *board_mux,
354 struct omap_ball *package_balls);