← Back to branch summary

~pmdj/ubuntu/trusty/qemu/2.9+applesmc+fadtv3

« back to all changes in this revision

Viewing changes to roms/u-boot/arch/arm/cpu/tegra114-common/funcmux.c

  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

Show diffs side-by-side

added added

removed removed

Lines of Context:
roms/u-boot/arch/arm/cpu/tegra114-common/funcmux.c
 
1
/*
 
2
 * Copyright (c) 2010-2013, NVIDIA CORPORATION.  All rights reserved.
 
3
 *
 
4
 * This program is free software; you can redistribute it and/or modify it
 
5
 * under the terms and conditions of the GNU General Public License,
 
6
 * version 2, as published by the Free Software Foundation.
 
7
 *
 
8
 * This program is distributed in the hope it will be useful, but WITHOUT
 
9
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 
10
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 
11
 * more details.
 
12
 *
 
13
 * You should have received a copy of the GNU General Public License
 
14
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
15
 */
 
16
 
 
17
/* Tegra114 high-level function multiplexing */
 
18
 
 
19
#include <common.h>
 
20
#include <asm/arch/clock.h>
 
21
#include <asm/arch/funcmux.h>
 
22
#include <asm/arch/pinmux.h>
 
23
 
 
24
int funcmux_select(enum periph_id id, int config)
 
25
{
 
26
        int bad_config = config != FUNCMUX_DEFAULT;
 
27
 
 
28
        switch (id) {
 
29
        case PERIPH_ID_UART4:
 
30
                switch (config) {
 
31
                case FUNCMUX_UART4_GMI:
 
32
                        pinmux_set_func(PMUX_PINGRP_GMI_A16_PJ7,
 
33
                                        PMUX_FUNC_UARTD);
 
34
                        pinmux_set_func(PMUX_PINGRP_GMI_A17_PB0,
 
35
                                        PMUX_FUNC_UARTD);
 
36
                        pinmux_set_func(PMUX_PINGRP_GMI_A18_PB1,
 
37
                                        PMUX_FUNC_UARTD);
 
38
                        pinmux_set_func(PMUX_PINGRP_GMI_A19_PK7,
 
39
                                        PMUX_FUNC_UARTD);
 
40
 
 
41
                        pinmux_set_io(PMUX_PINGRP_GMI_A16_PJ7, PMUX_PIN_OUTPUT);
 
42
                        pinmux_set_io(PMUX_PINGRP_GMI_A17_PB0, PMUX_PIN_INPUT);
 
43
                        pinmux_set_io(PMUX_PINGRP_GMI_A18_PB1, PMUX_PIN_INPUT);
 
44
                        pinmux_set_io(PMUX_PINGRP_GMI_A19_PK7, PMUX_PIN_OUTPUT);
 
45
 
 
46
                        pinmux_tristate_disable(PMUX_PINGRP_GMI_A16_PJ7);
 
47
                        pinmux_tristate_disable(PMUX_PINGRP_GMI_A17_PB0);
 
48
                        pinmux_tristate_disable(PMUX_PINGRP_GMI_A18_PB1);
 
49
                        pinmux_tristate_disable(PMUX_PINGRP_GMI_A19_PK7);
 
50
                        break;
 
51
                }
 
52
                break;
 
53
 
 
54
        /* Add other periph IDs here as needed */
 
55
 
 
56
        default:
 
57
                debug("%s: invalid periph_id %d", __func__, id);
 
58
                return -1;
 
59
        }
 
60
 
 
61
        if (bad_config) {
 
62
                debug("%s: invalid config %d for periph_id %d", __func__,
 
63
                      config, id);
 
64
                return -1;
 
65
        }
 
66
        return 0;
 
67
}