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authorTim Harvey <tharvey@gateworks.com>2014-04-22 21:53:58 -0700
committerStefano Babic <sbabic@denx.de>2014-05-09 14:38:23 +0200
commit5e2f01772a87ddd8592d5a53de85261b62faa7fb (patch)
tree2332f55367598e3067c7f9a4451c40c2c4b9c366 /include/power
parent17449272a01f2c23b890090ef7ebf720ec9cea32 (diff)
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power: Add support for LTC3676 PMIC
The LTC3676 PMIC includes four DC/DC converters, and three 300mA LDO Regulators (two Adjustable). The DC/DC converters are adjustable based on a resistor devider (board-specific). This adds support for the LTC3676 by creating a namespace unique init function that uses the PMIC API to allocate a pmic and defines the registers. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Acked-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'include/power')
-rw-r--r--include/power/ltc3676_pmic.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/include/power/ltc3676_pmic.h b/include/power/ltc3676_pmic.h
new file mode 100644
index 0000000..dcaa985
--- /dev/null
+++ b/include/power/ltc3676_pmic.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2014 Gateworks Corporation
+ * Tim Harvey <tharvey@gateworks.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __LTC3676_PMIC_H_
+#define __LTC3676_PMIC_H_
+
+/* LTC3676 registers */
+enum {
+ LTC3676_BUCK1 = 0x01,
+ LTC3676_BUCK2 = 0x02,
+ LTC3676_BUCK3 = 0x03,
+ LTC3676_BUCK4 = 0x04,
+ LTC3676_LDOA = 0x05,
+ LTC3676_LDOB = 0x06,
+ LTC3676_SQD1 = 0x07,
+ LTC3676_SQD2 = 0x08,
+ LTC3676_CNTRL = 0x09,
+ LTC3676_DVB1A = 0x0A,
+ LTC3676_DVB1B = 0x0B,
+ LTC3676_DVB2A = 0x0C,
+ LTC3676_DVB2B = 0x0D,
+ LTC3676_DVB3A = 0x0E,
+ LTC3676_DVB3B = 0x0F,
+ LTC3676_DVB4A = 0x10,
+ LTC3676_DVB4B = 0x11,
+ LTC3676_MSKIRQ = 0x12,
+ LTC3676_MSKPG = 0x13,
+ LTC3676_USER = 0x14,
+ LTC3676_HRST = 0x1E,
+ LTC3676_CLIRQ = 0x1F,
+ LTC3676_IRQSTAT = 0x15,
+ LTC3676_PGSTATL = 0x16,
+ LTC3676_PGSTATR = 0x17,
+ LTC3676_NUM_OF_REGS = 0x20,
+};
+
+/*
+ * SW Configuration
+ */
+
+#define LTC3676_DVB_MASK 0x1f
+#define LTC3676_PGOOD_MASK (1<<5)
+#define LTC3676_REF_SELA (0<<5)
+#define LTC3676_REF_SELB (1<<5)
+
+int power_ltc3676_init(unsigned char bus);
+#endif