Add support for fan controller emc2305.
Enable support of FAN controller for LX2160A RDB board.
Signed-off-by: Meenakshi Aggarwal <meenakshi.aggar...@nxp.com>
---
arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 22 +++++++++
board/freescale/common/Makefile | 2 +
board/freescale/common/emc2305.c | 75 +++++++++++++++++++++++++++++++
board/freescale/common/emc2305.h | 20 +++++++++
board/freescale/lx2160a/lx2160a.c | 9 ++++
5 files changed, 128 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..d746e78 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -346,6 +346,28 @@ 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 I2C_MUX_CH_EMC2305
+ hex "I2C channel where EMC2305 is connected"
+ default 0x9 if ARCH_LX2160A
+
+config I2C_EMC2305_ADDR
+ hex "I2C channel where EMC2305 is connected"
+ default 0x4D if ARCH_LX2160A
+
+config I2C_EMC2305_CMD
+ hex "EMC2305 made I2C compliant"
+ default 0x40 if ARCH_LX2160A
+
+config I2C_EMC2305_PWM
+ hex "Speed settings for Fan controller"
+ default 0x80 if ARCH_LX2160A
+
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..46f43e0
--- /dev/null
+++ b/board/freescale/common/emc2305.c
@@ -0,0 +1,75 @@
+// 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>
+#ifdef CONFIG_FSL_LSCH2
+#include <asm/arch/immap_lsch2.h>
+#elif defined(CONFIG_FSL_LSCH3)
+#include <asm/arch/immap_lsch3.h>
+#else
+#include <asm/immap_85xx.h>
+#endif
+#include "emc2305.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void configure_emc2305(void)
+{
+ u8 data;
+
+ data = CONFIG_I2C_EMC2305_CMD;
+ if (i2c_write(CONFIG_I2C_EMC2305_ADDR,
+ I2C_EMC2305_CONF, 1, &data, 1) != 0){
+ printf("Error: failed to configure I2C fan @%x\n",
+ CONFIG_I2C_EMC2305_ADDR);
+ }
+}
+
+void set_fan_speed(void)
+{
+ u8 data;
+
+ data = CONFIG_I2C_EMC2305_PWM;
+ if (i2c_write(CONFIG_I2C_EMC2305_ADDR,
+ I2C_EMC2305_FAN1, 1, &data, 1) != 0){
+ printf("Error: failed to change fan speed @%x\n",
+ I2C_EMC2305_FAN1);
+ }
+
+ if (i2c_write(CONFIG_I2C_EMC2305_ADDR,
+ I2C_EMC2305_FAN2, 1, &data, 1) != 0){
+ printf("Error: failed to change fan speed @%x\n",
+ I2C_EMC2305_FAN2);
+ }
+
+ if (i2c_write(CONFIG_I2C_EMC2305_ADDR,
+ I2C_EMC2305_FAN3, 1, &data, 1) != 0){
+ printf("Error: failed to change fan speed @%x\n",
+ I2C_EMC2305_FAN3);
+ }
+
+ if (i2c_write(CONFIG_I2C_EMC2305_ADDR,
+ I2C_EMC2305_FAN4, 1, &data, 1) != 0){
+ printf("Error: failed to change fan speed @%x\n",
+ I2C_EMC2305_FAN4);
+ }
+
+ if (i2c_write(CONFIG_I2C_EMC2305_ADDR,
+ I2C_EMC2305_FAN5, 1, &data, 1) != 0){
+ printf("Error: failed to change fan speed @%x\n",
+ I2C_EMC2305_FAN5);
+ }
+}
+
+void emc2305_init(void)
+{
+ configure_emc2305();
+ set_fan_speed();
+}
diff --git a/board/freescale/common/emc2305.h b/board/freescale/common/emc2305.h
new file mode 100644
index 0000000..ebbe20f
--- /dev/null
+++ b/board/freescale/common/emc2305.h
@@ -0,0 +1,20 @@
+/* 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
+
+void emc2305_init(void);
+
+#endif /* __EMC2305_H_ */
diff --git a/board/freescale/lx2160a/lx2160a.c
b/board/freescale/lx2160a/lx2160a.c
index 530f658..a4c54a2 100644
--- a/board/freescale/lx2160a/lx2160a.c
+++ b/board/freescale/lx2160a/lx2160a.c
@@ -26,6 +26,10 @@
#include "../common/vid.h"
#include <fsl_immap.h>
+#ifdef CONFIG_EMC2305
+#include "../common/emc2305.h"
+#endif
+
#ifdef CONFIG_TARGET_LX2160AQDS
#define CFG_MUX_I2C_SDHC(reg, value) ((reg & 0x3f) | value)
#define SET_CFG_MUX1_SDHC1_SDHC(reg) (reg & 0x3f)
@@ -93,6 +97,11 @@ int board_early_init_f(void)
/* get required clock for UART IP */
uart_get_clock();
+#ifdef CONFIG_EMC2305
+ select_i2c_ch_pca9547(CONFIG_I2C_MUX_CH_EMC2305);
+ emc2305_init();
+ select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
+#endif
fsl_lsch3_early_init_f();
return 0;
}
--
1.9.1
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