u-boot/board/gdsys/common/fanctrl.c
Mario Six d38826a3dc treewide: Fix gdsys mail addresses
The @gdsys.cc addresses are supposed to be used for mailing lists.
Switch all occurrences of @gdsys.de mail addresses to their @gdsys.cc
equivalent.

Also, Dirk's address was wrong in one place; fix that as well.

Signed-off-by: Mario Six <six@gdsys.cc>
2018-03-09 09:23:10 -05:00

32 lines
638 B
C

/*
* (C) Copyright 2015
* Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <i2c.h>
enum {
FAN_CONFIG = 0x03,
FAN_TACHLIM_LSB = 0x48,
FAN_TACHLIM_MSB = 0x49,
FAN_PWM_FREQ = 0x4D,
};
void init_fan_controller(u8 addr)
{
int val;
/* set PWM Frequency to 2.5% resolution */
i2c_reg_write(addr, FAN_PWM_FREQ, 20);
/* set Tachometer Limit */
i2c_reg_write(addr, FAN_TACHLIM_LSB, 0x10);
i2c_reg_write(addr, FAN_TACHLIM_MSB, 0x0a);
/* enable Tach input */
val = i2c_reg_read(addr, FAN_CONFIG) | 0x04;
i2c_reg_write(addr, FAN_CONFIG, val);
}