1 /* *****************************************************************************
2 * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included
12 * in all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Except as contained in this notice, the name of Maxim Integrated
23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
24 * Products, Inc. Branding Policy.
25 *
26 * The mere transfer of this software does not imply any licenses
27 * of trade secrets, proprietary technology, copyrights, patents,
28 * trademarks, maskwork rights, or any other form of intellectual
29 * property whatsoever. Maxim Integrated Products, Inc. retains all
30 * ownership rights.
31 *
32 * $Date: 2018-12-18 15:37:22 -0600 (Tue, 18 Dec 2018) $
33 * $Revision: 40072 $
34 *
35 **************************************************************************** */
36
37 /* **** Includes **** */
38 #include <stdint.h>
39 #include <stdio.h>
40 #include "mxc_config.h"
41 #include "mxc_errors.h"
42 #include "icc_regs.h"
43 #include "icc.h"
44
ICC_Ready(void)45 static int ICC_Ready(void)
46 {
47 return (MXC_ICC->cache_ctrl & MXC_F_ICC_CACHE_CTRL_CACHE_RDY);
48 }
49
ICC_ID(icc_cache_id_t cid)50 int ICC_ID(icc_cache_id_t cid)
51 {
52 switch (cid) {
53 case ICC_CACHE_ID_RELNUM:
54 return ((MXC_ICC->cache_id & MXC_F_ICC_CACHE_ID_RELNUM) >> MXC_F_ICC_CACHE_ID_RELNUM_POS);
55 case ICC_CACHE_ID_PARTNUM:
56 return ((MXC_ICC->cache_id & MXC_F_ICC_CACHE_ID_PARTNUM) >> MXC_F_ICC_CACHE_ID_PARTNUM_POS);
57 case ICC_CACHE_ID_CCHID:
58 return ((MXC_ICC->cache_id & MXC_F_ICC_CACHE_ID_CCHID) >> MXC_F_ICC_CACHE_ID_CCHID_POS);
59 default:
60 return E_BAD_PARAM;
61 }
62 }
63
ICC_Enable(void)64 void ICC_Enable(void)
65 {
66 // Invalidate cache and wait until ready
67 MXC_ICC->invalidate = 1;
68 while (!(ICC_Ready()));
69
70 // Enable Cache
71 MXC_ICC->cache_ctrl |= MXC_F_ICC_CACHE_CTRL_CACHE_EN;
72 }
73
ICC_Disable(void)74 void ICC_Disable(void)
75 {
76 // Disable Cache
77 MXC_ICC->cache_ctrl &= ~MXC_F_ICC_CACHE_CTRL_CACHE_EN;
78 }
79
ICC_Flush(void)80 void ICC_Flush(void)
81 {
82 ICC_Disable();
83 ICC_Enable();
84 }
85