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>

1 files changed, 41 insertions, 0 deletions

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");
+}