ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/uboot/drivers/hwmon/adt7460.c b/marvell/uboot/drivers/hwmon/adt7460.c
new file mode 100644
index 0000000..fd05c17
--- /dev/null
+++ b/marvell/uboot/drivers/hwmon/adt7460.c
@@ -0,0 +1,73 @@
+/*
+ * (C) Copyright 2008
+ * Ricado Ribalda-Universidad Autonoma de Madrid, ricardo.ribalda@uam.es
+ * This work has been supported by: QTechnology http://qtec.com/
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <dtt.h>
+
+#define ADT7460_ADDRESS 0x2c
+#define ADT7460_INVALID 128
+#define ADT7460_CONFIG 0x40
+#define ADT7460_REM1_TEMP 0x25
+#define ADT7460_LOCAL_TEMP 0x26
+#define ADT7460_REM2_TEMP 0x27
+
+int dtt_read(int sensor, int reg)
+{
+ u8 dir = reg;
+ u8 data;
+
+ if (i2c_read(ADT7460_ADDRESS, dir, 1, &data, 1) == -1)
+ return -1;
+ if (data == ADT7460_INVALID)
+ return -1;
+
+ return data;
+}
+
+int dtt_write(int sensor, int reg, int val)
+{
+ u8 dir = reg;
+ u8 data = val;
+
+ if (i2c_write(ADT7460_ADDRESS, dir, 1, &data, 1) == -1)
+ return -1;
+
+ return 0;
+}
+
+int dtt_init_one(int sensor)
+{
+ printf("ADT7460 at I2C address 0x%2x\n", ADT7460_ADDRESS);
+
+ if (dtt_write(0, ADT7460_CONFIG, 1) == -1) {
+ puts("Error initialiting ADT7460\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+int dtt_get_temp(int sensor)
+{
+ int aux;
+ u8 table[] =
+ { ADT7460_REM1_TEMP, ADT7460_LOCAL_TEMP, ADT7460_REM2_TEMP };
+
+ if (sensor > 2) {
+ puts("DTT sensor does not exist\n");
+ return -1;
+ }
+
+ aux = dtt_read(0, table[sensor]);
+ if (aux == -1) {
+ puts("DTT temperature read failed\n");
+ return -1;
+ }
+
+ return aux;
+}