1 files changed, 92 insertions, 0 deletions
diff --git a/drivers/ddr/marvell/a38x/xor.h b/drivers/ddr/marvell/a38x/xor.h
new file mode 100644
index 0000000000..7b1e316177
--- /dev/null
+++ b/drivers/ddr/marvell/a38x/xor.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) Marvell International Ltd. and its affiliates
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef _XOR_H
+#define _XOR_H
+
+#define SRAM_BASE		0x40000000
+
+#include "ddr3_hws_hw_training_def.h"
+
+#define MV_XOR_MAX_UNIT		2	/* XOR unit == XOR engine */
+#define MV_XOR_MAX_CHAN		4	/* total channels for all units */
+#define MV_XOR_MAX_CHAN_PER_UNIT 2	/* channels for units */
+
+#define MV_IS_POWER_OF_2(num)	(((num) != 0) && (((num) & ((num) - 1)) == 0))
+
+/*
+ * This structure describes address space window. Window base can be
+ * 64 bit, window size up to 4GB
+ */
+struct addr_win {
+	u32 base_low;		/* 32bit base low       */
+	u32 base_high;		/* 32bit base high      */
+	u32 size;		/* 32bit size           */
+};
+
+/* This structure describes SoC units address decode window	*/
+struct unit_win_info {
+	struct addr_win addr_win;	/* An address window */
+	int enable;		/* Address decode window is enabled/disabled  */
+	u8 attrib;		/* chip select attributes */
+	u8 target_id;		/* Target Id of this MV_TARGET */
+};
+
+/*
+ * This enumerator describes the type of functionality the XOR channel
+ * can have while using the same data structures.
+ */
+enum xor_type {
+	MV_XOR,			/* XOR channel functions as XOR accelerator   */
+	MV_DMA,			/* XOR channel functions as IDMA channel      */
+	MV_CRC32		/* XOR channel functions as CRC 32 calculator */
+};
+
+enum mv_state {
+	MV_IDLE,
+	MV_ACTIVE,
+	MV_PAUSED,
+	MV_UNDEFINED_STATE
+};
+
+/*
+ * This enumerator describes the set of commands that can be applied on
+ * an engine (e.g. IDMA, XOR). Appling a comman depends on the current
+ * status (see MV_STATE enumerator)
+ *
+ * Start can be applied only when status is IDLE
+ * Stop can be applied only when status is IDLE, ACTIVE or PAUSED
+ * Pause can be applied only when status is ACTIVE
+ * Restart can be applied only when status is PAUSED
+ */
+enum mv_command {
+	MV_START,		/* Start     */
+	MV_STOP,		/* Stop     */
+	MV_PAUSE,		/* Pause    */
+	MV_RESTART		/* Restart  */
+};
+
+enum xor_override_target {
+	SRC_ADDR0,		/* Source Address #0 Control */
+	SRC_ADDR1,		/* Source Address #1 Control */
+	SRC_ADDR2,		/* Source Address #2 Control */
+	SRC_ADDR3,		/* Source Address #3 Control */
+	SRC_ADDR4,		/* Source Address #4 Control */
+	SRC_ADDR5,		/* Source Address #5 Control */
+	SRC_ADDR6,		/* Source Address #6 Control */
+	SRC_ADDR7,		/* Source Address #7 Control */
+	XOR_DST_ADDR,		/* Destination Address Control */
+	XOR_NEXT_DESC		/* Next Descriptor Address Control */
+};
+
+enum mv_state mv_xor_state_get(u32 chan);
+void mv_xor_hal_init(u32 xor_chan_num);
+int mv_xor_ctrl_set(u32 chan, u32 xor_ctrl);
+int mv_xor_command_set(u32 chan, enum mv_command command);
+int mv_xor_override_set(u32 chan, enum xor_override_target target, u32 win_num,
+			int enable);
+
+#endif