cf3c20ae |
1 | /* $OpenBSD: sitara_cm.h,v 1.1 2013/09/04 14:38:32 patrick Exp $ */ |
2 | /* $NetBSD: sitara_cm.h,v 1.1 2013/04/17 14:31:02 bouyer Exp $ */ |
3 | /* |
4 | * Copyright (c) 2010 |
5 | * Ben Gray <ben.r.gray@gmail.com>. |
6 | * All rights reserved. |
7 | * |
8 | * Redistribution and use in source and binary forms, with or without |
9 | * modification, are permitted provided that the following conditions |
10 | * are met: |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
16 | * 3. All advertising materials mentioning features or use of this software |
17 | * must display the following acknowledgement: |
18 | * This product includes software developed by Ben Gray. |
19 | * 4. The name of the company nor the name of the author may be used to |
20 | * endorse or promote products derived from this software without specific |
21 | * prior written permission. |
22 | * |
23 | * THIS SOFTWARE IS PROVIDED BY BEN GRAY ``AS IS'' AND ANY EXPRESS OR |
24 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
25 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
26 | * IN NO EVENT SHALL BEN GRAY BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
27 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
28 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
29 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
30 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
31 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
32 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
33 | * |
34 | */ |
35 | |
36 | |
37 | /** |
38 | * Functions to configure the PIN multiplexing on the chip. |
39 | * |
40 | * This is different from the GPIO module in that it is used to configure the |
41 | * pins between modules not just GPIO input output. |
42 | * |
43 | */ |
44 | #ifndef _OMAP_SCM_H_ |
45 | #define _OMAP_SCM_H_ |
46 | |
47 | struct sitara_cm_padconf { |
48 | uint16_t reg_off; |
49 | uint16_t gpio_pin; |
50 | uint16_t gpio_mode; |
51 | const char *ballname; |
52 | const char *muxmodes[8]; |
53 | }; |
54 | |
55 | struct sitara_cm_padstate { |
56 | const char *state; |
57 | uint16_t reg; |
58 | }; |
59 | |
60 | struct sitara_cm_device { |
61 | uint16_t padconf_muxmode_mask; |
62 | uint16_t padconf_sate_mask; |
63 | struct sitara_cm_padstate *padstate; |
64 | struct sitara_cm_padconf *padconf; |
65 | }; |
66 | |
67 | int sitara_cm_padconf_set(const char *padname, const char *muxmode, |
68 | unsigned int state); |
69 | int sitara_cm_padconf_get(const char *padname, const char **muxmode, |
70 | unsigned int *state); |
71 | int sitara_cm_padconf_set_gpiomode(uint32_t gpio, unsigned int state); |
72 | int sitara_cm_padconf_get_gpiomode(uint32_t gpio, unsigned int *state); |
73 | int sitara_cm_padconf_set_gpioflags(uint32_t gpio, uint32_t flags); |
74 | void sitara_cm_padconf_get_gpioflags(uint32_t gpio, uint32_t *flags); |
75 | int sitara_cm_reg_read_4(uint32_t reg, uint32_t *val); |
76 | int sitara_cm_reg_write_4(uint32_t reg, uint32_t val); |
77 | |
78 | #endif /* _OMAP_SCM_H_ */ |