1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 2013, 2015 embedded brains GmbH & Co. KG
*
* Copyright (C) 2019 DornerWorks
*
* Written by Jeff Kubascik <jeff.kubascik@dornerworks.com>
* and Josh Whitehead <josh.whitehead@dornerworks.com>
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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.
*/
#include <bsp.h>
#include <bsp/bootcard.h>
#include <bsp/irq-generic.h>
#include <bsp/linker-symbols.h>
#include <dev/clock/arm-generic-timer.h>
#include <libcpu/arm-cp15.h>
void arm_generic_timer_get_config(uint32_t *frequency, uint32_t *irq)
{
#ifdef ARM_GENERIC_TIMER_FREQ
*frequency = ARM_GENERIC_TIMER_FREQ;
#else
/* Use generic timer frequency provided by boot loader */
*frequency = arm_cp15_get_counter_frequency();
#endif
#ifdef ARM_GENERIC_TIMER_USE_VIRTUAL
*irq = ZYNQMP_IRQ_VIRT_TIMER;
#else
*irq = ZYNQMP_IRQ_NS_PHYS_TIMER;
#endif
}
void bsp_start(void)
{
bsp_interrupt_initialize();
rtems_cache_coherent_add_area(
bsp_section_nocacheheap_begin,
(uintptr_t) bsp_section_nocacheheap_size
);
}
|