xref: /netbsd-src/sys/arch/arm/broadcom/bcm2835var.h (revision d074b179874e749ff8ff26a96eb34af3e8ea2645)
1 /*	$NetBSD: bcm2835var.h,v 1.5 2019/12/30 15:36:37 skrll Exp $	*/
2 
3 /*-
4  * Copyright (c) 2012 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Nick Hudson
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef	_ARM_BROADCOM_BCM2835_VAR_H_
33 #define	_ARM_BROADCOM_BCM2835_VAR_H_
34 
35 #include <sys/types.h>
36 #include <sys/bus.h>
37 
38 extern struct arm32_bus_dma_tag bcm2835_bus_dma_tag;
39 
40 extern bus_space_tag_t al_iot;
41 extern bus_space_handle_t al_ioh;
42 
43 bus_dma_tag_t bcm2835_bus_dma_init(struct arm32_bus_dma_tag *);
44 
45 void bcm2835_tmr_delay(unsigned int);
46 
47 void bcm2836_cpu_hatch(struct cpu_info *);
48 
49 u_int bcm283x_clk_get_rate_uart(void);
50 u_int bcm283x_clk_get_rate_vpu(void);
51 u_int bcm283x_clk_get_rate_emmc(void);
52 u_int bcm283x_clk_get_rate_emmc2(void);
53 
54 #endif	/* _ARM_BROADCOM_BCM2835_VAR_H_ */
55