| 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_ */ |