GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/board/freescale/common/emc2305.c

@@ -0,0 +1,62 @@
+// 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++) {
+#ifndef CONFIG_DM_I2C
+		if (i2c_write(I2C_EMC2305_ADDR, Fan[index], 1, &data, 1) != 0) {
+			printf("Error: failed to change fan speed @%x\n",
+			       Fan[index]);
+		}
+#else
+		struct udevice *dev;
+
+		if (i2c_get_chip_for_busnum(0, I2C_EMC2305_ADDR, 1, &dev))
+			continue;
+
+		if (dm_i2c_write(dev, Fan[index], &data, 1) != 0) {
+			printf("Error: failed to change fan speed @%x\n",
+			       Fan[index]);
+		}
+#endif
+	}
+}
+
+void emc2305_init(void)
+{
+	u8 data;
+
+	data = I2C_EMC2305_CMD;
+#ifndef CONFIG_DM_I2C
+	if (i2c_write(I2C_EMC2305_ADDR, I2C_EMC2305_CONF, 1, &data, 1) != 0)
+		printf("Error: failed to configure EMC2305\n");
+#else
+	struct udevice *dev;
+
+	if (!i2c_get_chip_for_busnum(0, I2C_EMC2305_ADDR, 1, &dev))
+		if (dm_i2c_write(dev, I2C_EMC2305_CONF, &data, 1))
+			printf("Error: failed to configure EMC2305\n");
+#endif
+
+}