1 files changed, 72 insertions, 0 deletions
diff --git a/roms/u-boot/board/gateworks/gw_ventana/gsc.h b/roms/u-boot/board/gateworks/gw_ventana/gsc.h
new file mode 100644
index 000000000..29d375b3a
--- /dev/null
+++ b/roms/u-boot/board/gateworks/gw_ventana/gsc.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2013 Gateworks Corporation
+ *
+ * Author: Tim Harvey <tharvey@gateworks.com>
+ */
+
+#ifndef __ASSEMBLY__
+
+/* i2c slave addresses */
+#define GSC_SC_ADDR		0x20
+#define GSC_RTC_ADDR		0x68
+#define GSC_HWMON_ADDR		0x29
+#define GSC_EEPROM_ADDR		0x51
+
+/* System Controller registers */
+enum {
+	GSC_SC_CTRL0		= 0x00,
+	GSC_SC_CTRL1		= 0x01,
+	GSC_SC_STATUS		= 0x0a,
+	GSC_SC_FWCRC		= 0x0c,
+	GSC_SC_FWVER		= 0x0e,
+};
+
+/* System Controller Control1 bits */
+enum {
+	GSC_SC_CTRL1_WDTIME	= 4, /* 1 = 60s timeout, 0 = 30s timeout */
+	GSC_SC_CTRL1_WDEN	= 5, /* 1 = enable, 0 = disable */
+	GSC_SC_CTRL1_WDDIS	= 7, /* 1 = disable boot watchdog */
+};
+
+/* System Controller Interrupt bits */
+enum {
+	GSC_SC_IRQ_PB		= 0, /* Pushbutton switch */
+	GSC_SC_IRQ_SECURE	= 1, /* Secure Key erase operation complete */
+	GSC_SC_IRQ_EEPROM_WP	= 2, /* EEPROM write violation */
+	GSC_SC_IRQ_GPIO		= 4, /* GPIO change */
+	GSC_SC_IRQ_TAMPER	= 5, /* Tamper detect */
+	GSC_SC_IRQ_WATCHDOG	= 6, /* Watchdog trip */
+	GSC_SC_IRQ_PBLONG	= 7, /* Pushbutton long hold */
+};
+
+/* Hardware Monitor registers */
+enum {
+	GSC_HWMON_TEMP		= 0x00,
+	GSC_HWMON_VIN		= 0x02,
+	GSC_HWMON_VDD_3P3	= 0x05,
+	GSC_HWMON_VBATT		= 0x08,
+	GSC_HWMON_VDD_5P0	= 0x0b,
+	GSC_HWMON_VDD_CORE	= 0x0e,
+	GSC_HWMON_VDD_SOC	= 0x11,
+	GSC_HWMON_VDD_HIGH	= 0x14,
+	GSC_HWMON_VDD_DDR	= 0x17,
+	GSC_HWMON_VDD_EXT	= 0x1a,
+	GSC_HWMON_VDD_1P8	= 0x1d,
+	GSC_HWMON_VDD_IO2	= 0x20,
+	GSC_HWMON_VDD_2P5	= 0x23,
+	GSC_HWMON_VDD_IO3	= 0x26,
+	GSC_HWMON_VDD_IO4	= 0x29,
+};
+
+/*
+ * I2C transactions to the GSC are done via these functions which
+ * perform retries in the case of a busy GSC NAK'ing the transaction
+ */
+int gsc_i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len);
+int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len);
+int gsc_info(int verbose);
+int gsc_boot_wd_disable(void);
+const char *gsc_get_dtb_name(int level, char *buf, int sz);
+#endif
+