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90110e0eab
Davinci: Table driven pinmux configuration Add code to allow pinmux_config tables to be grouped and configured as a single resource. This removes multiple calls to the pinmux configuration code from board_init and allows pinmuxes to be individually configured and added by data manipulation only. All related #ifdefs can the be removed from board_init code and since the compiler optimises away statics, #ifdefs can be reduced in the data definitions as well. Signed-off-by: Nick Thompson <nick.thompson@gefanuc.com>
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/*
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* Copyright (C) 2008 Lyrtech <www.lyrtech.com>
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*
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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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __MISC_H
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#define __MISC_H
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/* pin muxer definitions */
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#define PIN_MUX_NUM_FIELDS 8 /* Per register */
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#define PIN_MUX_FIELD_SIZE 4 /* n in bits */
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#define PIN_MUX_FIELD_MASK ((1 << PIN_MUX_FIELD_SIZE) - 1)
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/* pin definition */
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struct pinmux_config {
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dv_reg *mux; /* Address of mux register */
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unsigned char value; /* Value to set in field */
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unsigned char field; /* field number */
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};
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/* pin table definition */
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struct pinmux_resource {
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const struct pinmux_config *pins;
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const int n_pins;
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};
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#define PINMUX_ITEM(item) { \
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.pins = item, \
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.n_pins = ARRAY_SIZE(item) \
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}
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int dvevm_read_mac_address(uint8_t *buf);
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void dv_configure_mac_address(uint8_t *rom_enetaddr);
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int davinci_configure_pin_mux(const struct pinmux_config *pins, int n_pins);
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int davinci_configure_pin_mux_items(const struct pinmux_resource *item,
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int n_items);
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#endif /* __MISC_H */
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