diff options
Diffstat (limited to 'sys/arch/beagle/dev/sitara_cm.h')
| -rw-r--r-- | sys/arch/beagle/dev/sitara_cm.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sys/arch/beagle/dev/sitara_cm.h b/sys/arch/beagle/dev/sitara_cm.h new file mode 100644 index 00000000000..028eb10b91e --- /dev/null +++ b/sys/arch/beagle/dev/sitara_cm.h @@ -0,0 +1,77 @@ +/* $NetBSD: sitara_cm.h,v 1.1 2013/04/17 14:31:02 bouyer Exp $ */ +/* + * Copyright (c) 2010 + * Ben Gray <ben.r.gray@gmail.com>. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Ben Gray. + * 4. The name of the company nor the name of the author may be used to + * endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY BEN GRAY ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL BEN GRAY BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + + +/** + * Functions to configure the PIN multiplexing on the chip. + * + * This is different from the GPIO module in that it is used to configure the + * pins between modules not just GPIO input output. + * + */ +#ifndef _OMAP_SCM_H_ +#define _OMAP_SCM_H_ + +struct sitara_cm_padconf { + uint16_t reg_off; + uint16_t gpio_pin; + uint16_t gpio_mode; + const char *ballname; + const char *muxmodes[8]; +}; + +struct sitara_cm_padstate { + const char *state; + uint16_t reg; +}; + +struct sitara_cm_device { + uint16_t padconf_muxmode_mask; + uint16_t padconf_sate_mask; + struct sitara_cm_padstate *padstate; + struct sitara_cm_padconf *padconf; +}; + +int sitara_cm_padconf_set(const char *padname, const char *muxmode, + unsigned int state); +int sitara_cm_padconf_get(const char *padname, const char **muxmode, + unsigned int *state); +int sitara_cm_padconf_set_gpiomode(uint32_t gpio, unsigned int state); +int sitara_cm_padconf_get_gpiomode(uint32_t gpio, unsigned int *state); +int sitara_cm_padconf_set_gpioflags(uint32_t gpio, uint32_t flags); +void sitara_cm_padconf_get_gpioflags(uint32_t gpio, uint32_t *flags); +int sitara_cm_reg_read_4(uint32_t reg, uint32_t *val); +int sitara_cm_reg_write_4(uint32_t reg, uint32_t val); + +#endif /* _OMAP_SCM_H_ */ |