diff options
| author | Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com> | 2018-11-30 22:32:11 +0530 |
|---|---|---|
| committer | Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> | 2019-02-19 10:26:43 +0530 |
| commit | e088e587eda7a8813c977ddee84207ca728f87c5 (patch) | |
| tree | f85ed14ac2c1acb0a175d077b25f78450396e75f | |
| parent | 58c3e62040befff8a32a9fd157b0dcd23de194ec (diff) | |
armv8: emc2305: add support for fan controller
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>
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 6 | ||||
| -rw-r--r-- | board/freescale/common/Makefile | 2 | ||||
| -rw-r--r-- | board/freescale/common/emc2305.c | 41 | ||||
| -rw-r--r-- | board/freescale/common/emc2305.h | 23 |
4 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig index 01c5068ab6..a844b34b61 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig @@ -346,6 +346,12 @@ config MAX_CPUS cores, count the reserved ports. This will allocate enough memory in spin table to properly handle all cores. +config EMC2305 + bool "Fan controller" + help + Enable the EMC2305 fan controller for configuration of fan + speed. + config SECURE_BOOT bool "Secure Boot" help diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile index e3c5eaeb70..a9d61a8bcf 100644 --- a/board/freescale/common/Makefile +++ b/board/freescale/common/Makefile @@ -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/ diff --git a/board/freescale/common/emc2305.c b/board/freescale/common/emc2305.c new file mode 100644 index 0000000000..8523084da9 --- /dev/null +++ b/board/freescale/common/emc2305.c @@ -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"); +} diff --git a/board/freescale/common/emc2305.h b/board/freescale/common/emc2305.h new file mode 100644 index 0000000000..eddf537138 --- /dev/null +++ b/board/freescale/common/emc2305.h @@ -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_ */ |