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-rw-r--r--drivers/ptp/ptp_fc3.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/ptp/ptp_fc3.h b/drivers/ptp/ptp_fc3.h
new file mode 100644
index 0000000000..8971015792
--- /dev/null
+++ b/drivers/ptp/ptp_fc3.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * PTP hardware clock driver for the FemtoClock3 family of timing and
+ * synchronization devices.
+ *
+ * Copyright (C) 2023 Integrated Device Technology, Inc., a Renesas Company.
+ */
+#ifndef PTP_IDTFC3_H
+#define PTP_IDTFC3_H
+
+#include <linux/ktime.h>
+#include <linux/ptp_clock.h>
+#include <linux/regmap.h>
+
+#define FW_FILENAME "idtfc3.bin"
+
+#define MAX_FFO_PPB (244000)
+#define TDC_GET_PERIOD (10)
+
+struct idtfc3 {
+ struct ptp_clock_info caps;
+ struct ptp_clock *ptp_clock;
+ struct device *dev;
+ /* Mutex to protect operations from being interrupted */
+ struct mutex *lock;
+ struct device *mfd;
+ struct regmap *regmap;
+ struct idtfc3_hw_param hw_param;
+ u32 sub_sync_count;
+ u32 ns_per_sync;
+ int tdc_offset_sign;
+ u64 tdc_apll_freq;
+ u32 time_ref_freq;
+ u16 fod_n;
+ u8 lpf_mode;
+ /* Time counter */
+ u32 last_counter;
+ s64 ns;
+ u32 ns_per_counter;
+ u32 tc_update_period;
+ u32 tc_write_timeout;
+ s64 tod_write_overhead;
+};
+
+#endif /* PTP_IDTFC3_H */