1 /******************************************************************************
2 * Filename: pwr_ctrl.c
3 *
4 * Description: Power Control driver.
5 *
6 * Copyright (c) 2015 - 2022, Texas Instruments Incorporated
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 *
12 * 1) Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
14 *
15 * 2) Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
18 *
19 * 3) Neither the name of the ORGANIZATION nor the names of its contributors may
20 * be used to endorse or promote products derived from this software without
21 * specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 *
35 ******************************************************************************/
36
37 #include "pwr_ctrl.h"
38
39 //*****************************************************************************
40 //
41 // Handle support for DriverLib in ROM:
42 // This section will undo prototype renaming made in the header file
43 //
44 //*****************************************************************************
45 #if !defined(DOXYGEN)
46 #undef PowerCtrlSourceSet
47 #define PowerCtrlSourceSet NOROM_PowerCtrlSourceSet
48 #endif
49
50
51 //*****************************************************************************
52 //
53 // Set (Request) the main power source
54 //
55 //*****************************************************************************
56 void
PowerCtrlSourceSet(uint32_t ui32PowerConfig)57 PowerCtrlSourceSet(uint32_t ui32PowerConfig)
58 {
59 // Check the arguments.
60 ASSERT((ui32PowerConfig == PWRCTRL_PWRSRC_DCDC) ||
61 (ui32PowerConfig == PWRCTRL_PWRSRC_GLDO) ||
62 (ui32PowerConfig == PWRCTRL_PWRSRC_ULDO));
63
64 // Configure the power.
65 if(ui32PowerConfig == PWRCTRL_PWRSRC_DCDC) {
66 HWREG(AON_PMCTL_BASE + AON_PMCTL_O_PWRCTL) |=
67 (AON_PMCTL_PWRCTL_DCDC_EN | AON_PMCTL_PWRCTL_DCDC_ACTIVE);
68 }
69 else if (ui32PowerConfig == PWRCTRL_PWRSRC_GLDO)
70 {
71 HWREG(AON_PMCTL_BASE + AON_PMCTL_O_PWRCTL) &=
72 ~(AON_PMCTL_PWRCTL_DCDC_EN | AON_PMCTL_PWRCTL_DCDC_ACTIVE);
73 }
74 else
75 {
76 PRCMMcuUldoConfigure(true);
77 }
78 }
79
