mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 01:38:22 +00:00
a7c9310457
Initial support for the DS4510, a CPU supervisor with integrated EEPROM, SRAM, and 4 programmable non-volatile GPIO pins. The CONFIG_DS4510 define enables support for the device while the CONFIG_CMD_DS4510 define enables the ds4510 command. The additional CONFIG_DS4510_INFO, CONFIG_DS4510_MEM, and CONFIG_DS4510_RST defines add additional sub-commands to the ds4510 command when defined. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/*
|
|
* Copyright 2008 Extreme Engineering Solutions, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* Version 2 as published by the Free Software Foundation.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef __DS4510_H_
|
|
#define __DS4510_H_
|
|
|
|
/* General defines */
|
|
#define DS4510_NUM_IO 0x04
|
|
#define DS4510_IO_MASK ((1 << DS4510_NUM_IO) - 1)
|
|
#define DS4510_EEPROM_PAGE_WRITE_DELAY_MS 20
|
|
|
|
/* EEPROM from 0x00 - 0x39 */
|
|
#define DS4510_EEPROM 0x00
|
|
#define DS4510_EEPROM_SIZE 0x40
|
|
#define DS4510_EEPROM_PAGE_SIZE 0x08
|
|
#define DS4510_EEPROM_PAGE_OFFSET(x) ((x) & (DS4510_EEPROM_PAGE_SIZE - 1))
|
|
|
|
/* SEEPROM from 0xf0 - 0xf7 */
|
|
#define DS4510_SEEPROM 0xf0
|
|
#define DS4510_SEEPROM_SIZE 0x08
|
|
|
|
/* Registers overlapping SEEPROM from 0xf0 - 0xf7 */
|
|
#define DS4510_PULLUP 0xF0
|
|
#define DS4510_PULLUP_DIS 0x00
|
|
#define DS4510_PULLUP_EN 0x01
|
|
#define DS4510_RSTDELAY 0xF1
|
|
#define DS4510_RSTDELAY_MASK 0x03
|
|
#define DS4510_RSTDELAY_125 0x00
|
|
#define DS4510_RSTDELAY_250 0x01
|
|
#define DS4510_RSTDELAY_500 0x02
|
|
#define DS4510_RSTDELAY_1000 0x03
|
|
#define DS4510_IO3 0xF4
|
|
#define DS4510_IO2 0xF5
|
|
#define DS4510_IO1 0xF6
|
|
#define DS4510_IO0 0xF7
|
|
|
|
/* Status configuration registers from 0xf8 - 0xf9*/
|
|
#define DS4510_IO_STATUS 0xF8
|
|
#define DS4510_CFG 0xF9
|
|
#define DS4510_CFG_READY 0x80
|
|
#define DS4510_CFG_TRIP_POINT 0x40
|
|
#define DS4510_CFG_RESET 0x20
|
|
#define DS4510_CFG_SEE 0x10
|
|
#define DS4510_CFG_SWRST 0x08
|
|
|
|
/* SRAM from 0xfa - 0xff */
|
|
#define DS4510_SRAM 0xfa
|
|
#define DS4510_SRAM_SIZE 0x06
|
|
|
|
int ds4510_mem_write(uint8_t chip, int offset, uint8_t *buf, int count);
|
|
int ds4510_mem_read(uint8_t chip, int offset, uint8_t *buf, int count);
|
|
int ds4510_see_write(uint8_t chip, uint8_t nv);
|
|
int ds4510_rstdelay_write(uint8_t chip, uint8_t delay);
|
|
int ds4510_pullup_write(uint8_t chip, uint8_t val);
|
|
int ds4510_pullup_read(uint8_t chip);
|
|
int ds4510_gpio_write(uint8_t chip, uint8_t val);
|
|
int ds4510_gpio_read(uint8_t chip);
|
|
int ds4510_gpio_read_val(uint8_t chip);
|
|
|
|
#endif /* __DS4510_H_ */
|