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https://github.com/brain-hackers/u-boot-brain
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b5a5b35197
funcmux permits selection of config options for particular peripherals, such as the pins that are used for that peripheral, if there are several options. Add UART selection to start with. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/*
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* Copyright (c) 2011 The Chromium OS Authors.
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/* Tegra2 high-level function multiplexing */
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#ifndef __FUNCMUX_H
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#define __FUNCMUX_H
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/**
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* Select a config for a particular peripheral.
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*
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* Each peripheral can operate through a number of configurations,
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* which are sets of pins that it uses to bring out its signals.
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* The basic config is 0, and higher numbers indicate different
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* pinmux settings to bring the peripheral out on other pins,
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*
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* @param id Peripheral id
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* @param config Configuration to use (generally 0)
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* @return 0 if ok, -1 on error (e.g. incorrect id or config)
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*/
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int funcmux_select(enum periph_id id, int config);
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#endif
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