1 /******************************************************************************
2 * Filename: pwr_ctrl.c
3 * Revised: 2020-02-14 11:30:20 +0100 (Fri, 14 Feb 2020)
4 * Revision: 56760
5 *
6 * Description: Power Control driver.
7 *
8 * Copyright (c) 2015 - 2020, Texas Instruments Incorporated
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions are met:
13 *
14 * 1) Redistributions of source code must retain the above copyright notice,
15 * this list of conditions and the following disclaimer.
16 *
17 * 2) Redistributions in binary form must reproduce the above copyright notice,
18 * this list of conditions and the following disclaimer in the documentation
19 * and/or other materials provided with the distribution.
20 *
21 * 3) Neither the name of the ORGANIZATION nor the names of its contributors may
22 * be used to endorse or promote products derived from this software without
23 * specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 *
37 ******************************************************************************/
38
39 #include "pwr_ctrl.h"
40
41 //*****************************************************************************
42 //
43 // Handle support for DriverLib in ROM:
44 // This section will undo prototype renaming made in the header file
45 //
46 //*****************************************************************************
47 #if !defined(DOXYGEN)
48 #undef PowerCtrlSourceSet
49 #define PowerCtrlSourceSet NOROM_PowerCtrlSourceSet
50 #endif
51
52
53 //*****************************************************************************
54 //
55 // Set (Request) the main power source
56 //
57 //*****************************************************************************
58 void
PowerCtrlSourceSet(uint32_t ui32PowerConfig)59 PowerCtrlSourceSet(uint32_t ui32PowerConfig)
60 {
61 // Check the arguments.
62 ASSERT((ui32PowerConfig == PWRCTRL_PWRSRC_DCDC) ||
63 (ui32PowerConfig == PWRCTRL_PWRSRC_GLDO) ||
64 (ui32PowerConfig == PWRCTRL_PWRSRC_ULDO));
65
66 // Configure the power.
67 if(ui32PowerConfig == PWRCTRL_PWRSRC_DCDC) {
68 HWREG(AON_PMCTL_BASE + AON_PMCTL_O_PWRCTL) |=
69 (AON_PMCTL_PWRCTL_DCDC_EN | AON_PMCTL_PWRCTL_DCDC_ACTIVE);
70 }
71 else if (ui32PowerConfig == PWRCTRL_PWRSRC_GLDO)
72 {
73 HWREG(AON_PMCTL_BASE + AON_PMCTL_O_PWRCTL) &=
74 ~(AON_PMCTL_PWRCTL_DCDC_EN | AON_PMCTL_PWRCTL_DCDC_ACTIVE);
75 }
76 else
77 {
78 PRCMMcuUldoConfigure(true);
79 }
80 }
81
