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
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 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 HOLDER 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 "board.h"
#include "gpio_pins.h"
void hardware_init(void)
{
/* Board specific RDC settings */
BOARD_RdcInit();
/* Board specific clock settings */
BOARD_ClockInit();
/* initialize debug uart */
dbg_uart_init();
/* In this demo, we need to access RDC SEMAPHORE1 on this board */
RDC_SetPdapAccess(RDC, rdcPdapSemaphore1, 0xFF, false, false);
/* In this demo, we need to share board GPIO, we can set sreq argument to true
* when the peer core could also access GPIO with RDC_SEMAPHORE, or the peer
* core doesn't access the GPIO at all */
RDC_SetPdapAccess(RDC, BOARD_GPIO_SENSOR_RDC_PDAP, 0xFF, false/*true*/, false);
/* In this example, we need to grasp board I2C exclusively */
RDC_SetPdapAccess(RDC, BOARD_I2C_RDC_PDAP, 3 << (BOARD_DOMAIN_ID * 2), false, false);
/* Select I2C clock derived from OSC clock(24M) */
CCM_UpdateRoot(CCM, BOARD_I2C_CCM_ROOT, ccmRootmuxI2cOsc24m, 0, 0);
/* Enable I2C clock */
CCM_EnableRoot(CCM, BOARD_I2C_CCM_ROOT);
CCM_ControlGate(CCM, BOARD_I2C_CCM_CCGR, ccmClockNeededRunWait);
/* I2C Pin setting */
configure_i2c_pins(BOARD_I2C_BASEADDR);
/* Enable RDC SEMAPHORE GATE needed in this demo */
CCM_ControlGate(CCM, ccmCcgrGateSema1, ccmClockNeededRunWait);
/* Enable gpio clock gate */
CCM_ControlGate(CCM, BOARD_GPIO_SENSOR_CCM_CCGR, ccmClockNeededRunWait);
/* Configure gpio pin IOMUX */
configure_gpio_pin(BOARD_GPIO_SENSOR_CONFIG);
}
/*******************************************************************************
* EOF
******************************************************************************/
|
