leandrof/u-boot
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

armv8: emc2305: add support for fan controller

Browse Source 
Add support for fan controller emc2305.

Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
This commit is contained in:
Meenakshi Aggarwal
2018-11-30 22:32:11 +05:30
committed by Prabhakar Kushwaha
parent 58c3e62040
commit e088e587ed
4 changed files with 72 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
board/freescale/common/Makefile
View File

@@ -64,6 +64,8 @@ obj-$(CONFIG_POWER_MC34VR500) += mc34vr500.o
obj-$(CONFIG_LS102XA_STREAM_ID) += ls102xa_stream_id.o
obj-$(CONFIG_EMC2305) += emc2305.o
# deal with common files for P-series corenet based devices
obj-$(CONFIG_TARGET_P2041RDB) += p_corenet/
obj-$(CONFIG_TARGET_P3041DS) += p_corenet/

41
board/freescale/common/emc2305.c Normal file
View File

@@ -0,0 +1,41 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2018 NXP.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <i2c.h>
#include <asm/io.h>
#include "emc2305.h"
DECLARE_GLOBAL_DATA_PTR;
void set_fan_speed(u8 data)
{
u8 index;
u8 Fan[NUM_OF_FANS] = {I2C_EMC2305_FAN1,
I2C_EMC2305_FAN2,
I2C_EMC2305_FAN3,
I2C_EMC2305_FAN4,
I2C_EMC2305_FAN5};
for (index = 0; index < NUM_OF_FANS; index++) {
if (i2c_write(I2C_EMC2305_ADDR, Fan[index], 1, &data, 1) != 0) {
printf("Error: failed to change fan speed @%x\n",
Fan[index]);
}
}
}
void emc2305_init(void)
{
u8 data;
data = I2C_EMC2305_CMD;
if (i2c_write(I2C_EMC2305_ADDR, I2C_EMC2305_CONF, 1, &data, 1) != 0)
printf("Error: failed to configure EMC2305\n");
}

23
board/freescale/common/emc2305.h Normal file
View File

@@ -0,0 +1,23 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2018 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __EMC2305_H_
#define __EMC2305_H_
#define I2C_EMC2305_CONF 0x20
#define I2C_EMC2305_FAN1 0x30
#define I2C_EMC2305_FAN2 0x40
#define I2C_EMC2305_FAN3 0x50
#define I2C_EMC2305_FAN4 0x60
#define I2C_EMC2305_FAN5 0x70
#define NUM_OF_FANS 5
void emc2305_init(void);
void set_fan_speed(u8 data);
#endif /* __EMC2305_H_ */