-----Original Message----- From: U-Boot u-boot-bounces@lists.denx.de On Behalf Of Meenakshi Aggarwal Sent: Friday, November 30, 2018 10:32 PM To: u-boot@lists.denx.de; York Sun york.sun@nxp.com Subject: [U-Boot] [PATCH 1/2] 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
This patch been applied to fsl-qoriq master, awaiting upstream.
--pk
arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 6 +++++ board/freescale/common/Makefile | 2 ++ board/freescale/common/emc2305.c | 41 +++++++++++++++++++++++++++++++ board/freescale/common/emc2305.h | 23 +++++++++++++++++ 4 files changed, 72 insertions(+) create mode 100644 board/freescale/common/emc2305.c create mode 100644 board/freescale/common/emc2305.h
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig index 5dba2af..b0e779d 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 fanspeed.config SECURE_BOOT bool "Secure Boot" help diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile index e3c5eae..a9d61a8 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 0000000..8523084 --- /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) !=
- {
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 0000000..eddf537 --- /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_ */
1.9.1
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