2 * linux/arch/arm/mach-omap2/mux.c
4 * OMAP2, OMAP3 and OMAP4 pin multiplexing configurations
6 * Copyright (C) 2004 - 2010 Texas Instruments Inc.
7 * Copyright (C) 2003 - 2008 Nokia Corporation
9 * Written by Tony Lindgren
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include <linux/kernel.h>
27 #include <linux/init.h>
29 #include <linux/list.h>
30 #include <linux/slab.h>
31 #include <linux/ctype.h>
32 #include <linux/debugfs.h>
33 #include <linux/seq_file.h>
34 #include <linux/uaccess.h>
36 #include <asm/system.h>
38 #include <plat/omap_hwmod.h>
43 #define OMAP_MUX_BASE_OFFSET 0x30 /* Offset from CTRL_BASE */
44 #define OMAP_MUX_BASE_SZ 0x5ca
46 struct omap_mux_entry {
48 struct list_head node;
51 static LIST_HEAD(mux_partitions);
52 static DEFINE_MUTEX(muxmode_mutex);
54 struct omap_mux_partition *omap_mux_get(const char *name)
56 struct omap_mux_partition *partition;
58 list_for_each_entry(partition, &mux_partitions, node) {
59 if (!strcmp(name, partition->name))
66 u16 omap_mux_read(struct omap_mux_partition *partition, u16 reg)
68 if (partition->flags & OMAP_MUX_REG_8BIT)
69 return __raw_readb(partition->base + reg);
71 return __raw_readw(partition->base + reg);
74 void omap_mux_write(struct omap_mux_partition *partition, u16 val,
77 if (partition->flags & OMAP_MUX_REG_8BIT)
78 __raw_writeb(val, partition->base + reg);
80 __raw_writew(val, partition->base + reg);
83 void omap_mux_write_array(struct omap_mux_partition *partition,
84 struct omap_board_mux *board_mux)
86 while (board_mux->reg_offset != OMAP_MUX_TERMINATOR) {
87 omap_mux_write(partition, board_mux->value,
88 board_mux->reg_offset);
93 #ifdef CONFIG_OMAP_MUX
95 static char *omap_mux_options;
97 static int __init _omap_mux_init_gpio(struct omap_mux_partition *partition,
100 struct omap_mux_entry *e;
101 struct omap_mux *gpio_mux = NULL;
105 struct list_head *muxmodes = &partition->muxmodes;
110 list_for_each_entry(e, muxmodes, node) {
111 struct omap_mux *m = &e->mux;
112 if (gpio == m->gpio) {
119 pr_err("%s: Could not set gpio%i\n", __func__, gpio);
124 pr_info("%s: Multiple gpio paths (%d) for gpio%i\n", __func__,
129 old_mode = omap_mux_read(partition, gpio_mux->reg_offset);
130 mux_mode = val & ~(OMAP_MUX_NR_MODES - 1);
131 if (partition->flags & OMAP_MUX_GPIO_IN_MODE3)
132 mux_mode |= OMAP_MUX_MODE3;
134 mux_mode |= OMAP_MUX_MODE4;
135 pr_debug("%s: Setting signal %s.gpio%i 0x%04x -> 0x%04x\n", __func__,
136 gpio_mux->muxnames[0], gpio, old_mode, mux_mode);
137 omap_mux_write(partition, mux_mode, gpio_mux->reg_offset);
142 int __init omap_mux_init_gpio(int gpio, int val)
144 struct omap_mux_partition *partition;
147 list_for_each_entry(partition, &mux_partitions, node) {
148 ret = _omap_mux_init_gpio(partition, gpio, val);
156 static int __init _omap_mux_get_by_name(struct omap_mux_partition *partition,
158 struct omap_mux **found_mux)
160 struct omap_mux *mux = NULL;
161 struct omap_mux_entry *e;
162 const char *mode_name;
163 int found = 0, found_mode = 0, mode0_len = 0;
164 struct list_head *muxmodes = &partition->muxmodes;
166 mode_name = strchr(muxname, '.');
168 mode0_len = strlen(muxname) - strlen(mode_name);
174 list_for_each_entry(e, muxmodes, node) {
179 m0_entry = mux->muxnames[0];
181 /* First check for full name in mode0.muxmode format */
182 if (mode0_len && strncmp(muxname, m0_entry, mode0_len))
185 /* Then check for muxmode only */
186 for (i = 0; i < OMAP_MUX_NR_MODES; i++) {
187 char *mode_cur = mux->muxnames[i];
192 if (!strcmp(mode_name, mode_cur)) {
205 pr_err("%s: Multiple signal paths (%i) for %s\n", __func__,
210 pr_err("%s: Could not find signal %s\n", __func__, muxname);
216 omap_mux_get_by_name(const char *muxname,
217 struct omap_mux_partition **found_partition,
218 struct omap_mux **found_mux)
220 struct omap_mux_partition *partition;
222 list_for_each_entry(partition, &mux_partitions, node) {
223 struct omap_mux *mux = NULL;
224 int mux_mode = _omap_mux_get_by_name(partition, muxname, &mux);
228 *found_partition = partition;
237 int __init omap_mux_init_signal(const char *muxname, int val)
239 struct omap_mux_partition *partition = NULL;
240 struct omap_mux *mux = NULL;
244 mux_mode = omap_mux_get_by_name(muxname, &partition, &mux);
248 old_mode = omap_mux_read(partition, mux->reg_offset);
250 pr_debug("%s: Setting signal %s 0x%04x -> 0x%04x\n",
251 __func__, muxname, old_mode, mux_mode);
252 omap_mux_write(partition, mux_mode, mux->reg_offset);
257 struct omap_hwmod_mux_info * __init
258 omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads)
260 struct omap_hwmod_mux_info *hmux;
261 int i, nr_pads_dynamic = 0;
263 if (!bpads || nr_pads < 1)
266 hmux = kzalloc(sizeof(struct omap_hwmod_mux_info), GFP_KERNEL);
270 hmux->nr_pads = nr_pads;
272 hmux->pads = kzalloc(sizeof(struct omap_device_pad) *
273 nr_pads, GFP_KERNEL);
277 for (i = 0; i < hmux->nr_pads; i++) {
278 struct omap_mux_partition *partition;
279 struct omap_device_pad *bpad = &bpads[i], *pad = &hmux->pads[i];
280 struct omap_mux *mux;
283 mux_mode = omap_mux_get_by_name(bpad->name, &partition, &mux);
287 pad->partition = partition;
291 pad->name = kzalloc(strlen(bpad->name) + 1, GFP_KERNEL);
295 for (j = i - 1; j >= 0; j--)
296 kfree(hmux->pads[j].name);
299 strcpy(pad->name, bpad->name);
301 pad->flags = bpad->flags;
302 pad->enable = bpad->enable;
303 pad->idle = bpad->idle;
304 pad->off = bpad->off;
306 if (pad->flags & OMAP_DEVICE_PAD_REMUX)
309 pr_debug("%s: Initialized %s\n", __func__, pad->name);
312 if (!nr_pads_dynamic)
316 * Add pads that need dynamic muxing into a separate list
319 hmux->nr_pads_dynamic = nr_pads_dynamic;
320 hmux->pads_dynamic = kzalloc(sizeof(struct omap_device_pad *) *
321 nr_pads_dynamic, GFP_KERNEL);
322 if (!hmux->pads_dynamic) {
323 pr_err("%s: Could not allocate dynamic pads\n", __func__);
328 for (i = 0; i < hmux->nr_pads; i++) {
329 struct omap_device_pad *pad = &hmux->pads[i];
331 if (pad->flags & OMAP_DEVICE_PAD_REMUX) {
332 pr_debug("%s: pad %s tagged dynamic\n",
333 __func__, pad->name);
334 hmux->pads_dynamic[nr_pads_dynamic] = pad;
346 pr_err("%s: Could not allocate device mux entry\n", __func__);
351 /* Assumes the calling function takes care of locking */
352 void omap_hwmod_mux(struct omap_hwmod_mux_info *hmux, u8 state)
356 /* Runtime idling of dynamic pads */
357 if (state == _HWMOD_STATE_IDLE && hmux->enabled) {
358 for (i = 0; i < hmux->nr_pads_dynamic; i++) {
359 struct omap_device_pad *pad = hmux->pads_dynamic[i];
363 omap_mux_write(pad->partition, val,
364 pad->mux->reg_offset);
370 /* Runtime enabling of dynamic pads */
371 if ((state == _HWMOD_STATE_ENABLED) && hmux->pads_dynamic
373 for (i = 0; i < hmux->nr_pads_dynamic; i++) {
374 struct omap_device_pad *pad = hmux->pads_dynamic[i];
378 omap_mux_write(pad->partition, val,
379 pad->mux->reg_offset);
385 /* Enabling or disabling of all pads */
386 for (i = 0; i < hmux->nr_pads; i++) {
387 struct omap_device_pad *pad = &hmux->pads[i];
388 int flags, val = -EINVAL;
393 case _HWMOD_STATE_ENABLED:
395 pr_debug("%s: Enabling %s %x\n", __func__,
398 case _HWMOD_STATE_DISABLED:
399 /* Use safe mode unless OMAP_DEVICE_PAD_REMUX */
400 if (flags & OMAP_DEVICE_PAD_REMUX)
403 val = OMAP_MUX_MODE7;
404 pr_debug("%s: Disabling %s %x\n", __func__,
408 /* Nothing to be done */
413 omap_mux_write(pad->partition, val,
414 pad->mux->reg_offset);
419 if (state == _HWMOD_STATE_ENABLED)
420 hmux->enabled = true;
422 hmux->enabled = false;
425 #ifdef CONFIG_DEBUG_FS
427 #define OMAP_MUX_MAX_NR_FLAGS 10
428 #define OMAP_MUX_TEST_FLAG(val, mask) \
429 if (((val) & (mask)) == (mask)) { \
434 /* REVISIT: Add checking for non-optimal mux settings */
435 static inline void omap_mux_decode(struct seq_file *s, u16 val)
437 char *flags[OMAP_MUX_MAX_NR_FLAGS];
438 char mode[sizeof("OMAP_MUX_MODE") + 1];
441 sprintf(mode, "OMAP_MUX_MODE%d", val & 0x7);
445 OMAP_MUX_TEST_FLAG(val, OMAP_PIN_OFF_WAKEUPENABLE);
446 if (val & OMAP_OFF_EN) {
447 if (!(val & OMAP_OFFOUT_EN)) {
448 if (!(val & OMAP_OFF_PULL_UP)) {
449 OMAP_MUX_TEST_FLAG(val,
450 OMAP_PIN_OFF_INPUT_PULLDOWN);
452 OMAP_MUX_TEST_FLAG(val,
453 OMAP_PIN_OFF_INPUT_PULLUP);
456 if (!(val & OMAP_OFFOUT_VAL)) {
457 OMAP_MUX_TEST_FLAG(val,
458 OMAP_PIN_OFF_OUTPUT_LOW);
460 OMAP_MUX_TEST_FLAG(val,
461 OMAP_PIN_OFF_OUTPUT_HIGH);
466 if (val & OMAP_INPUT_EN) {
467 if (val & OMAP_PULL_ENA) {
468 if (!(val & OMAP_PULL_UP)) {
469 OMAP_MUX_TEST_FLAG(val,
470 OMAP_PIN_INPUT_PULLDOWN);
472 OMAP_MUX_TEST_FLAG(val, OMAP_PIN_INPUT_PULLUP);
475 OMAP_MUX_TEST_FLAG(val, OMAP_PIN_INPUT);
479 flags[i] = "OMAP_PIN_OUTPUT";
483 seq_printf(s, "%s", flags[i]);
485 seq_printf(s, " | ");
489 #define OMAP_MUX_DEFNAME_LEN 32
491 static int omap_mux_dbg_board_show(struct seq_file *s, void *unused)
493 struct omap_mux_partition *partition = s->private;
494 struct omap_mux_entry *e;
495 u8 omap_gen = omap_rev() >> 28;
497 list_for_each_entry(e, &partition->muxmodes, node) {
498 struct omap_mux *m = &e->mux;
499 char m0_def[OMAP_MUX_DEFNAME_LEN];
500 char *m0_name = m->muxnames[0];
507 /* REVISIT: Needs to be updated if mode0 names get longer */
508 for (i = 0; i < OMAP_MUX_DEFNAME_LEN; i++) {
509 if (m0_name[i] == '\0') {
510 m0_def[i] = m0_name[i];
513 m0_def[i] = toupper(m0_name[i]);
515 val = omap_mux_read(partition, m->reg_offset);
516 mode = val & OMAP_MUX_MODE7;
518 seq_printf(s, "/* %s */\n", m->muxnames[mode]);
521 * XXX: Might be revisited to support differences across
522 * same OMAP generation.
524 seq_printf(s, "OMAP%d_MUX(%s, ", omap_gen, m0_def);
525 omap_mux_decode(s, val);
526 seq_printf(s, "),\n");
532 static int omap_mux_dbg_board_open(struct inode *inode, struct file *file)
534 return single_open(file, omap_mux_dbg_board_show, inode->i_private);
537 static const struct file_operations omap_mux_dbg_board_fops = {
538 .open = omap_mux_dbg_board_open,
541 .release = single_release,
544 static struct omap_mux_partition *omap_mux_get_partition(struct omap_mux *mux)
546 struct omap_mux_partition *partition;
548 list_for_each_entry(partition, &mux_partitions, node) {
549 struct list_head *muxmodes = &partition->muxmodes;
550 struct omap_mux_entry *e;
552 list_for_each_entry(e, muxmodes, node) {
553 struct omap_mux *m = &e->mux;
563 static int omap_mux_dbg_signal_show(struct seq_file *s, void *unused)
565 struct omap_mux *m = s->private;
566 struct omap_mux_partition *partition;
567 const char *none = "NA";
571 partition = omap_mux_get_partition(m);
575 val = omap_mux_read(partition, m->reg_offset);
576 mode = val & OMAP_MUX_MODE7;
578 seq_printf(s, "name: %s.%s (0x%08x/0x%03x = 0x%04x), b %s, t %s\n",
579 m->muxnames[0], m->muxnames[mode],
580 partition->phys + m->reg_offset, m->reg_offset, val,
581 m->balls[0] ? m->balls[0] : none,
582 m->balls[1] ? m->balls[1] : none);
583 seq_printf(s, "mode: ");
584 omap_mux_decode(s, val);
586 seq_printf(s, "signals: %s | %s | %s | %s | %s | %s | %s | %s\n",
587 m->muxnames[0] ? m->muxnames[0] : none,
588 m->muxnames[1] ? m->muxnames[1] : none,
589 m->muxnames[2] ? m->muxnames[2] : none,
590 m->muxnames[3] ? m->muxnames[3] : none,
591 m->muxnames[4] ? m->muxnames[4] : none,
592 m->muxnames[5] ? m->muxnames[5] : none,
593 m->muxnames[6] ? m->muxnames[6] : none,
594 m->muxnames[7] ? m->muxnames[7] : none);
599 #define OMAP_MUX_MAX_ARG_CHAR 7
601 static ssize_t omap_mux_dbg_signal_write(struct file *file,
602 const char __user *user_buf,
603 size_t count, loff_t *ppos)
605 char buf[OMAP_MUX_MAX_ARG_CHAR];
606 struct seq_file *seqf;
610 struct omap_mux_partition *partition;
612 if (count > OMAP_MUX_MAX_ARG_CHAR)
615 memset(buf, 0, sizeof(buf));
616 buf_size = min(count, sizeof(buf) - 1);
618 if (copy_from_user(buf, user_buf, buf_size))
621 ret = strict_strtoul(buf, 0x10, &val);
628 seqf = file->private_data;
631 partition = omap_mux_get_partition(m);
635 omap_mux_write(partition, (u16)val, m->reg_offset);
641 static int omap_mux_dbg_signal_open(struct inode *inode, struct file *file)
643 return single_open(file, omap_mux_dbg_signal_show, inode->i_private);
646 static const struct file_operations omap_mux_dbg_signal_fops = {
647 .open = omap_mux_dbg_signal_open,
649 .write = omap_mux_dbg_signal_write,
651 .release = single_release,
654 static struct dentry *mux_dbg_dir;
656 static void __init omap_mux_dbg_create_entry(
657 struct omap_mux_partition *partition,
658 struct dentry *mux_dbg_dir)
660 struct omap_mux_entry *e;
662 list_for_each_entry(e, &partition->muxmodes, node) {
663 struct omap_mux *m = &e->mux;
665 (void)debugfs_create_file(m->muxnames[0], S_IWUSR, mux_dbg_dir,
666 m, &omap_mux_dbg_signal_fops);
670 static void __init omap_mux_dbg_init(void)
672 struct omap_mux_partition *partition;
673 static struct dentry *mux_dbg_board_dir;
675 mux_dbg_dir = debugfs_create_dir("omap_mux", NULL);
679 mux_dbg_board_dir = debugfs_create_dir("board", mux_dbg_dir);
680 if (!mux_dbg_board_dir)
683 list_for_each_entry(partition, &mux_partitions, node) {
684 omap_mux_dbg_create_entry(partition, mux_dbg_dir);
685 (void)debugfs_create_file(partition->name, S_IRUGO,
686 mux_dbg_board_dir, partition,
687 &omap_mux_dbg_board_fops);
692 static inline void omap_mux_dbg_init(void)
695 #endif /* CONFIG_DEBUG_FS */
697 static void __init omap_mux_free_names(struct omap_mux *m)
701 for (i = 0; i < OMAP_MUX_NR_MODES; i++)
702 kfree(m->muxnames[i]);
704 #ifdef CONFIG_DEBUG_FS
705 for (i = 0; i < OMAP_MUX_NR_SIDES; i++)
711 /* Free all data except for GPIO pins unless CONFIG_DEBUG_FS is set */
712 static int __init omap_mux_late_init(void)
714 struct omap_mux_partition *partition;
716 list_for_each_entry(partition, &mux_partitions, node) {
717 struct omap_mux_entry *e, *tmp;
718 list_for_each_entry_safe(e, tmp, &partition->muxmodes, node) {
719 struct omap_mux *m = &e->mux;
720 u16 mode = omap_mux_read(partition, m->reg_offset);
722 if (OMAP_MODE_GPIO(mode))
725 #ifndef CONFIG_DEBUG_FS
726 mutex_lock(&muxmode_mutex);
728 mutex_unlock(&muxmode_mutex);
729 omap_mux_free_names(m);
739 late_initcall(omap_mux_late_init);
741 static void __init omap_mux_package_fixup(struct omap_mux *p,
742 struct omap_mux *superset)
744 while (p->reg_offset != OMAP_MUX_TERMINATOR) {
745 struct omap_mux *s = superset;
748 while (s->reg_offset != OMAP_MUX_TERMINATOR) {
749 if (s->reg_offset == p->reg_offset) {
757 pr_err("%s: Unknown entry offset 0x%x\n", __func__,
763 #ifdef CONFIG_DEBUG_FS
765 static void __init omap_mux_package_init_balls(struct omap_ball *b,
766 struct omap_mux *superset)
768 while (b->reg_offset != OMAP_MUX_TERMINATOR) {
769 struct omap_mux *s = superset;
772 while (s->reg_offset != OMAP_MUX_TERMINATOR) {
773 if (s->reg_offset == b->reg_offset) {
774 s->balls[0] = b->balls[0];
775 s->balls[1] = b->balls[1];
782 pr_err("%s: Unknown ball offset 0x%x\n", __func__,
788 #else /* CONFIG_DEBUG_FS */
790 static inline void omap_mux_package_init_balls(struct omap_ball *b,
791 struct omap_mux *superset)
795 #endif /* CONFIG_DEBUG_FS */
797 static int __init omap_mux_setup(char *options)
802 omap_mux_options = options;
806 __setup("omap_mux=", omap_mux_setup);
809 * Note that the omap_mux=some.signal1=0x1234,some.signal2=0x1234
810 * cmdline options only override the bootloader values.
811 * During development, please enable CONFIG_DEBUG_FS, and use the
812 * signal specific entries under debugfs.
814 static void __init omap_mux_set_cmdline_signals(void)
816 char *options, *next_opt, *token;
818 if (!omap_mux_options)
821 options = kmalloc(strlen(omap_mux_options) + 1, GFP_KERNEL);
825 strcpy(options, omap_mux_options);
828 while ((token = strsep(&next_opt, ",")) != NULL) {
833 name = strsep(&keyval, "=");
837 res = strict_strtoul(keyval, 0x10, &val);
841 omap_mux_init_signal(name, (u16)val);
848 static int __init omap_mux_copy_names(struct omap_mux *src,
849 struct omap_mux *dst)
853 for (i = 0; i < OMAP_MUX_NR_MODES; i++) {
854 if (src->muxnames[i]) {
856 kmalloc(strlen(src->muxnames[i]) + 1,
858 if (!dst->muxnames[i])
860 strcpy(dst->muxnames[i], src->muxnames[i]);
864 #ifdef CONFIG_DEBUG_FS
865 for (i = 0; i < OMAP_MUX_NR_SIDES; i++) {
868 kmalloc(strlen(src->balls[i]) + 1,
872 strcpy(dst->balls[i], src->balls[i]);
880 omap_mux_free_names(dst);
885 #endif /* CONFIG_OMAP_MUX */
887 static struct omap_mux *omap_mux_get_by_gpio(
888 struct omap_mux_partition *partition,
891 struct omap_mux_entry *e;
892 struct omap_mux *ret = NULL;
894 list_for_each_entry(e, &partition->muxmodes, node) {
895 struct omap_mux *m = &e->mux;
896 if (m->gpio == gpio) {
905 /* Needed for dynamic muxing of GPIO pins for off-idle */
906 u16 omap_mux_get_gpio(int gpio)
908 struct omap_mux_partition *partition;
909 struct omap_mux *m = NULL;
911 list_for_each_entry(partition, &mux_partitions, node) {
912 m = omap_mux_get_by_gpio(partition, gpio);
914 return omap_mux_read(partition, m->reg_offset);
917 if (!m || m->reg_offset == OMAP_MUX_TERMINATOR)
918 pr_err("%s: Could not get gpio%i\n", __func__, gpio);
920 return OMAP_MUX_TERMINATOR;
923 /* Needed for dynamic muxing of GPIO pins for off-idle */
924 void omap_mux_set_gpio(u16 val, int gpio)
926 struct omap_mux_partition *partition;
927 struct omap_mux *m = NULL;
929 list_for_each_entry(partition, &mux_partitions, node) {
930 m = omap_mux_get_by_gpio(partition, gpio);
932 omap_mux_write(partition, val, m->reg_offset);
937 if (!m || m->reg_offset == OMAP_MUX_TERMINATOR)
938 pr_err("%s: Could not set gpio%i\n", __func__, gpio);
941 static struct omap_mux * __init omap_mux_list_add(
942 struct omap_mux_partition *partition,
943 struct omap_mux *src)
945 struct omap_mux_entry *entry;
948 entry = kzalloc(sizeof(struct omap_mux_entry), GFP_KERNEL);
955 #ifdef CONFIG_OMAP_MUX
956 if (omap_mux_copy_names(src, m)) {
962 mutex_lock(&muxmode_mutex);
963 list_add_tail(&entry->node, &partition->muxmodes);
964 mutex_unlock(&muxmode_mutex);
970 * Note if CONFIG_OMAP_MUX is not selected, we will only initialize
971 * the GPIO to mux offset mapping that is needed for dynamic muxing
972 * of GPIO pins for off-idle.
974 static void __init omap_mux_init_list(struct omap_mux_partition *partition,
975 struct omap_mux *superset)
977 while (superset->reg_offset != OMAP_MUX_TERMINATOR) {
978 struct omap_mux *entry;
980 #ifdef CONFIG_OMAP_MUX
981 if (!superset->muxnames || !superset->muxnames[0]) {
986 /* Skip pins that are not muxed as GPIO by bootloader */
987 if (!OMAP_MODE_GPIO(omap_mux_read(partition,
988 superset->reg_offset))) {
994 entry = omap_mux_list_add(partition, superset);
996 pr_err("%s: Could not add entry\n", __func__);
1003 #ifdef CONFIG_OMAP_MUX
1005 static void omap_mux_init_package(struct omap_mux *superset,
1006 struct omap_mux *package_subset,
1007 struct omap_ball *package_balls)
1010 omap_mux_package_fixup(package_subset, superset);
1012 omap_mux_package_init_balls(package_balls, superset);
1015 static void omap_mux_init_signals(struct omap_mux_partition *partition,
1016 struct omap_board_mux *board_mux)
1018 omap_mux_set_cmdline_signals();
1019 omap_mux_write_array(partition, board_mux);
1024 static void omap_mux_init_package(struct omap_mux *superset,
1025 struct omap_mux *package_subset,
1026 struct omap_ball *package_balls)
1030 static void omap_mux_init_signals(struct omap_mux_partition *partition,
1031 struct omap_board_mux *board_mux)
1037 static u32 mux_partitions_cnt;
1039 int __init omap_mux_init(const char *name, u32 flags,
1040 u32 mux_pbase, u32 mux_size,
1041 struct omap_mux *superset,
1042 struct omap_mux *package_subset,
1043 struct omap_board_mux *board_mux,
1044 struct omap_ball *package_balls)
1046 struct omap_mux_partition *partition;
1048 partition = kzalloc(sizeof(struct omap_mux_partition), GFP_KERNEL);
1052 partition->name = name;
1053 partition->flags = flags;
1054 partition->size = mux_size;
1055 partition->phys = mux_pbase;
1056 partition->base = ioremap(mux_pbase, mux_size);
1057 if (!partition->base) {
1058 pr_err("%s: Could not ioremap mux partition at 0x%08x\n",
1059 __func__, partition->phys);
1064 INIT_LIST_HEAD(&partition->muxmodes);
1066 list_add_tail(&partition->node, &mux_partitions);
1067 mux_partitions_cnt++;
1068 pr_info("%s: Add partition: #%d: %s, flags: %x\n", __func__,
1069 mux_partitions_cnt, partition->name, partition->flags);
1071 omap_mux_init_package(superset, package_subset, package_balls);
1072 omap_mux_init_list(partition, superset);
1073 omap_mux_init_signals(partition, board_mux);