1 files changed, 120 insertions, 0 deletions
diff --git a/plat/marvell/armada/common/mss/mss_ipc_drv.h b/plat/marvell/armada/common/mss/mss_ipc_drv.h
new file mode 100644
index 0000000..bcb4b2d
--- /dev/null
+++ b/plat/marvell/armada/common/mss/mss_ipc_drv.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#ifndef MSS_IPC_DRV_H
+#define MSS_IPC_DRV_H
+
+#include <lib/psci/psci.h>
+
+#define MV_PM_FW_IPC_VERSION_MAGIC	(0xCA530000) /* Do NOT change */
+/* Increament for each version */
+#define MV_PM_FW_IPC_VERSION_SEQ	(0x00000001)
+#define MV_PM_FW_IPC_VERSION		(MV_PM_FW_IPC_VERSION_MAGIC | \
+					 MV_PM_FW_IPC_VERSION_SEQ)
+
+#define IPC_MSG_STATE_LOC		(0x0)
+#define IPC_MSG_SYNC_ID_LOC		(0x4)
+#define IPC_MSG_ID_LOC			(0x8)
+#define IPC_MSG_RET_CH_ID_LOC	(0xC)
+#define IPC_MSG_CPU_ID_LOC		(0x10)
+#define IPC_MSG_CLUSTER_ID_LOC	(0x14)
+#define IPC_MSG_SYSTEM_ID_LOC	(0x18)
+#define IPC_MSG_POWER_STATE_LOC	(0x1C)
+#define IPC_MSG_REPLY_LOC		(0x20)
+#define IPC_MSG_RESERVED_LOC	(0x24)
+
+/* IPC initialization state */
+enum mss_pm_ipc_init_state {
+	IPC_UN_INITIALIZED	= 1,
+	IPC_INITIALIZED		= 2
+};
+
+/* IPC queue direction */
+enum mss_pm_ipc_init_msg_dir {
+	IPC_MSG_TX	= 0,
+	IPC_MSG_RX	= 1
+};
+
+/* IPC message state */
+enum mss_pm_ipc_msg_state {
+	IPC_MSG_FREE	= 1,
+	IPC_MSG_OCCUPY	= 2
+
+};
+
+/* IPC control block */
+struct mss_pm_ipc_ctrl {
+	unsigned int ctrl_base_address;
+	unsigned int msg_base_address;
+	unsigned int num_of_channels;
+	unsigned int channel_size;
+	unsigned int queue_size;
+};
+
+/* IPC message types */
+enum mss_pm_msg_id {
+	PM_IPC_MSG_CPU_SUSPEND		= 1,
+	PM_IPC_MSG_CPU_OFF		= 2,
+	PM_IPC_MSG_CPU_ON		= 3,
+	PM_IPC_MSG_SYSTEM_RESET		= 4,
+	PM_IPC_MSG_SYSTEM_SUSPEND	= 5,
+	PM_IPC_MAX_MSG
+};
+
+struct mss_pm_ipc_msg {
+	unsigned int	msg_sync_id;	/*
+					 * Sync number, validate message
+					 * reply corresponding to message
+					 * received
+					 */
+	unsigned int	msg_id;		/* Message Id */
+	unsigned int	ret_channel_id;	/* IPC channel reply */
+	unsigned int	cpu_id;		/* CPU Id */
+	unsigned int	cluster_id;	/* Cluster Id */
+	unsigned int	system_id;	/* System Id */
+	unsigned int	power_state;
+	unsigned int	msg_reply;	/* Message reply */
+};
+
+/* IPC queue */
+struct mss_pm_ipc_queue {
+	unsigned int	state;
+	struct mss_pm_ipc_msg		msg;
+};
+
+/* IPC channel */
+struct mss_pm_ipc_ch {
+	struct mss_pm_ipc_queue *tx_queue;
+	struct mss_pm_ipc_queue *rx_queue;
+};
+
+/*****************************************************************************
+ * mv_pm_ipc_init
+ *
+ * DESCRIPTION: Initialize PM IPC infrastructure
+ *****************************************************************************
+ */
+int mv_pm_ipc_init(unsigned long ipc_control_addr);
+
+/*****************************************************************************
+ * mv_pm_ipc_msg_rx
+ *
+ * DESCRIPTION: Retrieve message from IPC channel
+ *****************************************************************************
+ */
+int mv_pm_ipc_msg_rx(unsigned int channel_id, struct mss_pm_ipc_msg *msg);
+
+/*****************************************************************************
+ * mv_pm_ipc_msg_tx
+ *
+ * DESCRIPTION: Send message via IPC channel
+ *****************************************************************************
+ */
+int mv_pm_ipc_msg_tx(unsigned int channel_id, unsigned int msg_id,
+			unsigned int cluster_power_state);
+
+#endif /* MSS_IPC_DRV_H */