summaryrefslogtreecommitdiff
path: root/src/vendorcode/cavium/bdk/libbdk-hal/bdk-access.c
blob: ebced00715d0ddb9e071c3159a3e9b4f874bc415 (plain)
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
/***********************license start***********************************
* Copyright (c) 2003-2017  Cavium Inc. (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
*   * Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*
*   * 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.
*
*   * Neither the name of Cavium 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, including technical data, may be subject to U.S. export
* control laws, including the U.S. Export Administration Act and its
* associated regulations, and may be subject to export or import
* regulations in other countries.
*
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT
* TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT,
* QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK
* ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
#include <bdk.h>
#include "libbdk-arch/bdk-csrs-uaa.h"
#include "libbdk-arch/bdk-csrs-rst.h"

/**
 * Perform a soft reset of the chip
 *
 * @return
 */
void bdk_reset_chip(bdk_node_t node)
{
    fflush(NULL);

    /* Wait for TX fifo to empty */
    while (1)
    {
        BDK_CSR_INIT(fr, node, BDK_UAAX_FR(0));
        if (fr.s.txfe)
            break;
    }

    /* RST_OCX is not cleared by a chip reset. Clear it now to avoid repeated
       resets due to CCPI state changes during reset */
    BDK_CSR_WRITE(node, BDK_RST_OCX, 0);
    BDK_CSR_READ(node, BDK_RST_OCX);

    bdk_rst_soft_rst_t rst_soft_rst;
    rst_soft_rst.u = 0;
    rst_soft_rst.s.soft_rst = 1;
    BDK_CSR_WRITE(node, BDK_RST_SOFT_RST, rst_soft_rst.u);
}