Tom Warren | e3d95bc | 2013-01-28 13:32:10 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2010-2013, NVIDIA CORPORATION. All rights reserved. |
| 3 | * |
Tom Rini | e237880 | 2016-01-14 22:05:13 -0500 | [diff] [blame^] | 4 | * SPDX-License-Identifier: GPL-2.0 |
Tom Warren | e3d95bc | 2013-01-28 13:32:10 +0000 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | /* Tegra114 high-level function multiplexing */ |
| 8 | |
| 9 | #include <common.h> |
| 10 | #include <asm/arch/clock.h> |
| 11 | #include <asm/arch/funcmux.h> |
| 12 | #include <asm/arch/pinmux.h> |
| 13 | |
| 14 | int funcmux_select(enum periph_id id, int config) |
| 15 | { |
| 16 | int bad_config = config != FUNCMUX_DEFAULT; |
| 17 | |
| 18 | switch (id) { |
| 19 | case PERIPH_ID_UART4: |
| 20 | switch (config) { |
| 21 | case FUNCMUX_UART4_GMI: |
Stephen Warren | 0561709 | 2014-03-21 12:29:00 -0600 | [diff] [blame] | 22 | pinmux_set_func(PMUX_PINGRP_GMI_A16_PJ7, |
| 23 | PMUX_FUNC_UARTD); |
| 24 | pinmux_set_func(PMUX_PINGRP_GMI_A17_PB0, |
| 25 | PMUX_FUNC_UARTD); |
| 26 | pinmux_set_func(PMUX_PINGRP_GMI_A18_PB1, |
| 27 | PMUX_FUNC_UARTD); |
| 28 | pinmux_set_func(PMUX_PINGRP_GMI_A19_PK7, |
| 29 | PMUX_FUNC_UARTD); |
Tom Warren | e3d95bc | 2013-01-28 13:32:10 +0000 | [diff] [blame] | 30 | |
Stephen Warren | 0561709 | 2014-03-21 12:29:00 -0600 | [diff] [blame] | 31 | pinmux_set_io(PMUX_PINGRP_GMI_A16_PJ7, PMUX_PIN_OUTPUT); |
| 32 | pinmux_set_io(PMUX_PINGRP_GMI_A17_PB0, PMUX_PIN_INPUT); |
| 33 | pinmux_set_io(PMUX_PINGRP_GMI_A18_PB1, PMUX_PIN_INPUT); |
| 34 | pinmux_set_io(PMUX_PINGRP_GMI_A19_PK7, PMUX_PIN_OUTPUT); |
Tom Warren | e3d95bc | 2013-01-28 13:32:10 +0000 | [diff] [blame] | 35 | |
Stephen Warren | 0561709 | 2014-03-21 12:29:00 -0600 | [diff] [blame] | 36 | pinmux_tristate_disable(PMUX_PINGRP_GMI_A16_PJ7); |
| 37 | pinmux_tristate_disable(PMUX_PINGRP_GMI_A17_PB0); |
| 38 | pinmux_tristate_disable(PMUX_PINGRP_GMI_A18_PB1); |
| 39 | pinmux_tristate_disable(PMUX_PINGRP_GMI_A19_PK7); |
Tom Warren | e3d95bc | 2013-01-28 13:32:10 +0000 | [diff] [blame] | 40 | break; |
| 41 | } |
| 42 | break; |
| 43 | |
| 44 | /* Add other periph IDs here as needed */ |
| 45 | |
| 46 | default: |
| 47 | debug("%s: invalid periph_id %d", __func__, id); |
| 48 | return -1; |
| 49 | } |
| 50 | |
| 51 | if (bad_config) { |
| 52 | debug("%s: invalid config %d for periph_id %d", __func__, |
| 53 | config, id); |
| 54 | return -1; |
| 55 | } |
| 56 | return 0; |
| 57 | } |