Sheetal Tigadoli | 58a9eca | 2019-12-18 20:05:09 +0530 | [diff] [blame^] | 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 | |
| 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 | } |