Commit a7c93104 authored by Peter Tyser's avatar Peter Tyser Committed by Wolfgang Denk

Add support for Maxim's DS4510 I2C device

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: 's avatarPeter Tyser <ptyser@xes-inc.com>
parent b6fc6fd4
......@@ -592,6 +592,10 @@ The following options need to be configured:
CONFIG_CMD_DHCP * DHCP support
CONFIG_CMD_DIAG * Diagnostics
CONFIG_CMD_DOC * Disk-On-Chip Support
CONFIG_CMD_DS4510 * ds4510 I2C gpio commands
CONFIG_CMD_DS4510_INFO * ds4510 I2C info command
CONFIG_CMD_DS4510_MEM * ds4510 I2C eeprom/sram commansd
CONFIG_CMD_DS4510_RST * ds4510 I2C rst command
CONFIG_CMD_DTT * Digital Therm and Thermostat
CONFIG_CMD_ECHO echo arguments
CONFIG_CMD_EEPROM * EEPROM read/write support
......
......@@ -26,6 +26,7 @@ include $(TOPDIR)/config.mk
LIB := $(obj)libmisc.a
COBJS-$(CONFIG_ALI152X) += ali512x.o
COBJS-$(CONFIG_DS4510) += ds4510.o
COBJS-$(CONFIG_FSL_LAW) += fsl_law.o
COBJS-$(CONFIG_NS87308) += ns87308.o
COBJS-$(CONFIG_STATUS_LED) += status_led.o
......
This diff is collapsed.
/*
* 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_ */
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