xref: /rk3399_ARM-atf/plat/arm/board/fvp/fvp_bl2_setup.c (revision 3105f7ba9a3a9f6f0e78761e8bdd4da621254730)
1 /*
2  * Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *
7  * Redistributions of source code must retain the above copyright notice, this
8  * list of conditions and the following disclaimer.
9  *
10  * Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  *
14  * Neither the name of ARM nor the names of its contributors may be used
15  * to endorse or promote products derived from this software without specific
16  * prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include <mmio.h>
32 #include <plat_arm.h>
33 #include <sp804_delay_timer.h>
34 #include <v2m_def.h>
35 #include "fvp_def.h"
36 #include "fvp_private.h"
37 
38 
39 void bl2_early_platform_setup(meminfo_t *mem_layout)
40 {
41 	arm_bl2_early_platform_setup(mem_layout);
42 
43 	/* Initialize the platform config for future decision making */
44 	fvp_config_setup();
45 }
46 
47 void bl2_platform_setup(void)
48 {
49 	arm_bl2_platform_setup();
50 
51 	/* Enable the clock override for SP804 timer 0, which means that no
52 	 * clock dividers are applied and the raw (35 MHz) clock will be used */
53 	mmio_write_32(V2M_SP810_BASE, FVP_SP810_CTRL_TIM0_OV);
54 
55 	/* Initialize delay timer driver using SP804 dual timer 0 */
56 	sp804_timer_init(V2M_SP804_TIMER0_BASE,
57 			SP804_TIMER_CLKMULT, SP804_TIMER_CLKDIV);
58 }
59