mirror of
https://github.com/AsahiLinux/u-boot
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64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
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/*
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* Copyright (c) 2010-2013, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* Tegra114 high-level function multiplexing */
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#include <common.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/funcmux.h>
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#include <asm/arch/pinmux.h>
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int funcmux_select(enum periph_id id, int config)
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{
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int bad_config = config != FUNCMUX_DEFAULT;
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switch (id) {
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case PERIPH_ID_UART4:
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switch (config) {
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case FUNCMUX_UART4_GMI:
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pinmux_set_func(PINGRP_GMI_A16, PMUX_FUNC_UARTD);
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pinmux_set_func(PINGRP_GMI_A17, PMUX_FUNC_UARTD);
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pinmux_set_func(PINGRP_GMI_A18, PMUX_FUNC_UARTD);
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pinmux_set_func(PINGRP_GMI_A19, PMUX_FUNC_UARTD);
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pinmux_set_io(PINGRP_GMI_A16, PMUX_PIN_OUTPUT);
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pinmux_set_io(PINGRP_GMI_A17, PMUX_PIN_INPUT);
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pinmux_set_io(PINGRP_GMI_A18, PMUX_PIN_INPUT);
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pinmux_set_io(PINGRP_GMI_A19, PMUX_PIN_OUTPUT);
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pinmux_tristate_disable(PINGRP_GMI_A16);
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pinmux_tristate_disable(PINGRP_GMI_A17);
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pinmux_tristate_disable(PINGRP_GMI_A18);
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pinmux_tristate_disable(PINGRP_GMI_A19);
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break;
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}
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break;
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/* Add other periph IDs here as needed */
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default:
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debug("%s: invalid periph_id %d", __func__, id);
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return -1;
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}
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if (bad_config) {
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debug("%s: invalid config %d for periph_id %d", __func__,
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config, id);
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return -1;
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}
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return 0;
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}
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