[1/2] initial import of TI TPS65090

This imports TPS65090 PMIC from u-boot and adds/updates Makefiles
and Kconfig files. The follow-up patch will re-factor the code.

Change-Id: Ic9e43b9665ddf7f55feae8fa17fbf3d2d5f4756d
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3060
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

1 files changed, 83 insertions, 0 deletions

diff --git a/src/drivers/ti/tps65090/tps65090.h b/src/drivers/ti/tps65090/tps65090.h
new file mode 100644
index 0000000000..b008a55635
--- /dev/null
+++ b/src/drivers/ti/tps65090/tps65090.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ */
+
+#ifndef __TPS65090_H_
+#define __TPS65090_H_
+
+/* I2C device address for TPS65090 PMU */
+#define TPS65090_I2C_ADDR	0x48
+
+enum {
+	/* Status register fields */
+	TPS65090_ST1_OTC	= 1 << 0,
+	TPS65090_ST1_OCC	= 1 << 1,
+	TPS65090_ST1_STATE_SHIFT = 4,
+	TPS65090_ST1_STATE_MASK	= 0xf << TPS65090_ST1_STATE_SHIFT,
+};
+
+/* FET errors */
+enum {
+	FET_ERR_COMMS		= -1,	/* FET comms error */
+	FET_ERR_NOT_READY	= -2,	/* FET is not yet ready - retry */
+};
+
+/**
+ * Enable FET
+ *
+ * @param	fet_id	FET ID, value between 1 and 7
+ * @return	0 on success, non-0 on failure
+ */
+int tps65090_fet_enable(unsigned int fet_id);
+
+/**
+ * Disable FET
+ *
+ * @param	fet_id	FET ID, value between 1 and 7
+ * @return	0 on success, non-0 on failure
+ */
+int tps65090_fet_disable(unsigned int fet_id);
+
+/**
+ * Is FET enabled?
+ *
+ * @param	fet_id	FET ID, value between 1 and 7
+ * @return	1 enabled, 0 disabled, negative value on failure
+ */
+int tps65090_fet_is_enabled(unsigned int fet_id);
+
+/**
+ * Enable / disable the battery charger
+ *
+ * @param enable	0 to disable charging, non-zero to enable
+ */
+int tps65090_set_charge_enable(int enable);
+
+/**
+ * Check whether we have enabled battery charging
+ *
+ * @return 1 if enabled, 0 if disabled
+ */
+int tps65090_get_charging(void);
+
+/**
+ * Return the value of the status register
+ *
+ * @return status register value, or -1 on error
+ */
+int tps65090_get_status(void);
+
+/**
+ * Initialize the TPS65090 PMU.
+ *
+ * @return	0 on success, non-0 on failure
+ */
+int tps65090_init(void);
+
+#endif /* __TPS65090_H_ */