blob: 409335ce1d1fa6d4929cd3e54ca90c7cf1753a47 [file] [log] [blame]
Tom Warrenb2871032012-12-11 13:34:15 +00001/*
2 * Copyright (c) 2010-2012, 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/* Tegra30 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
24int funcmux_select(enum periph_id id, int config)
25{
26 int bad_config = config != FUNCMUX_DEFAULT;
27
28 switch (id) {
29 case PERIPH_ID_UART1:
30 switch (config) {
31 case FUNCMUX_UART1_ULPI:
Stephen Warren803d01e2014-03-21 12:28:59 -060032 pinmux_set_func(PMUX_PINGRP_ULPI_DATA0_PO1,
33 PMUX_FUNC_UARTA);
34 pinmux_set_func(PMUX_PINGRP_ULPI_DATA1_PO2,
35 PMUX_FUNC_UARTA);
36 pinmux_set_func(PMUX_PINGRP_ULPI_DATA2_PO3,
37 PMUX_FUNC_UARTA);
38 pinmux_set_func(PMUX_PINGRP_ULPI_DATA3_PO4,
39 PMUX_FUNC_UARTA);
40 pinmux_tristate_disable(PMUX_PINGRP_ULPI_DATA0_PO1);
41 pinmux_tristate_disable(PMUX_PINGRP_ULPI_DATA1_PO2);
42 pinmux_tristate_disable(PMUX_PINGRP_ULPI_DATA2_PO3);
43 pinmux_tristate_disable(PMUX_PINGRP_ULPI_DATA3_PO4);
Tom Warrenb2871032012-12-11 13:34:15 +000044 break;
45 }
46 break;
47
48 /* Add other periph IDs here as needed */
49
50 default:
51 debug("%s: invalid periph_id %d", __func__, id);
52 return -1;
53 }
54
55 if (bad_config) {
56 debug("%s: invalid config %d for periph_id %d", __func__,
57 config, id);
58 return -1;
59 }
60 return 0;
61}