1 /*
2 * Copyright (c) 2019-2020, Broadcom
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #include <stdbool.h>
8
9 #include <common/debug.h>
10 #include <lib/mmio.h>
11
12 #include <ncsi.h>
13 #include <sr_def.h>
14 #include <sr_utils.h>
15
16 static const char *const io_drives[] = {
17 "2mA", "4mA", "6mA", "8mA",
18 "10mA", "12mA", "14mA", "16mA"
19 };
20
brcm_stingray_ncsi_init(void)21 void brcm_stingray_ncsi_init(void)
22 {
23 unsigned int i = 0;
24 unsigned int selx = 0;
25
26 #if NCSI_IO_DRIVE_STRENGTH_MA == 2
27 selx = 0x0;
28 #elif NCSI_IO_DRIVE_STRENGTH_MA == 4
29 selx = 0x1;
30 #elif NCSI_IO_DRIVE_STRENGTH_MA == 6
31 selx = 0x2;
32 #elif NCSI_IO_DRIVE_STRENGTH_MA == 8
33 selx = 0x3;
34 #elif NCSI_IO_DRIVE_STRENGTH_MA == 10
35 selx = 0x4;
36 #elif NCSI_IO_DRIVE_STRENGTH_MA == 12
37 selx = 0x5;
38 #elif NCSI_IO_DRIVE_STRENGTH_MA == 14
39 selx = 0x6;
40 #elif NCSI_IO_DRIVE_STRENGTH_MA == 16
41 selx = 0x7;
42 #else
43 ERROR("Unsupported NCSI_IO_DRIVE_STRENGTH_MA. Please check it.\n");
44 return;
45 #endif
46 INFO("ncsi io drives: %s\n", io_drives[selx]);
47
48 for (i = 0; i < NITRO_NCSI_IOPAD_CONTROL_NUM; i++) {
49 mmio_clrsetbits_32((NITRO_NCSI_IOPAD_CONTROL_BASE + (i * 4)),
50 PAD_SELX_MASK, PAD_SELX_VALUE(selx));
51 }
52
53 INFO("ncsi init done\n");
54 }
55