mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-10 23:03:29 +09:00
![Nick Thompson](/assets/img/avatar_default.png)
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
/*
|
|
* Copyright (C) 2008 Lyrtech <www.lyrtech.com>
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that 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, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#ifndef __MISC_H
|
|
#define __MISC_H
|
|
|
|
/* pin muxer definitions */
|
|
#define PIN_MUX_NUM_FIELDS 8 /* Per register */
|
|
#define PIN_MUX_FIELD_SIZE 4 /* n in bits */
|
|
#define PIN_MUX_FIELD_MASK ((1 << PIN_MUX_FIELD_SIZE) - 1)
|
|
|
|
/* pin definition */
|
|
struct pinmux_config {
|
|
dv_reg *mux; /* Address of mux register */
|
|
unsigned char value; /* Value to set in field */
|
|
unsigned char field; /* field number */
|
|
};
|
|
|
|
/* pin table definition */
|
|
struct pinmux_resource {
|
|
const struct pinmux_config *pins;
|
|
const int n_pins;
|
|
};
|
|
|
|
#define PINMUX_ITEM(item) { \
|
|
.pins = item, \
|
|
.n_pins = ARRAY_SIZE(item) \
|
|
}
|
|
|
|
int dvevm_read_mac_address(uint8_t *buf);
|
|
void dv_configure_mac_address(uint8_t *rom_enetaddr);
|
|
int davinci_configure_pin_mux(const struct pinmux_config *pins, int n_pins);
|
|
int davinci_configure_pin_mux_items(const struct pinmux_resource *item,
|
|
int n_items);
|
|
|
|
#endif /* __MISC_H */
|