| Tom Warren | e3d95bc | 2013-01-28 13:32:10 +0000 | [diff] [blame] | 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(PINGRP_GMI_A16, PMUX_FUNC_UARTD); |
| 33 | pinmux_set_func(PINGRP_GMI_A17, PMUX_FUNC_UARTD); |
| 34 | pinmux_set_func(PINGRP_GMI_A18, PMUX_FUNC_UARTD); |
| 35 | pinmux_set_func(PINGRP_GMI_A19, PMUX_FUNC_UARTD); |
| 36 | |
| 37 | pinmux_set_io(PINGRP_GMI_A16, PMUX_PIN_OUTPUT); |
| 38 | pinmux_set_io(PINGRP_GMI_A17, PMUX_PIN_INPUT); |
| 39 | pinmux_set_io(PINGRP_GMI_A18, PMUX_PIN_INPUT); |
| 40 | pinmux_set_io(PINGRP_GMI_A19, PMUX_PIN_OUTPUT); |
| 41 | |
| 42 | pinmux_tristate_disable(PINGRP_GMI_A16); |
| 43 | pinmux_tristate_disable(PINGRP_GMI_A17); |
| 44 | pinmux_tristate_disable(PINGRP_GMI_A18); |
| 45 | pinmux_tristate_disable(PINGRP_GMI_A19); |
| 46 | break; |
| 47 | } |
| 48 | break; |
| 49 | |
| 50 | /* Add other periph IDs here as needed */ |
| 51 | |
| 52 | default: |
| 53 | debug("%s: invalid periph_id %d", __func__, id); |
| 54 | return -1; |
| 55 | } |
| 56 | |
| 57 | if (bad_config) { |
| 58 | debug("%s: invalid config %d for periph_id %d", __func__, |
| 59 | config, id); |
| 60 | return -1; |
| 61 | } |
| 62 | return 0; |
| 63 | } |