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