refactor(corstone700): namespace MHU driver filenames
There are plans to contribute a generic MHU driver to the TF-A code
base in the short term.
In preparation for this, rename the Corstone-700 MHU driver source
files and prefix them with the name of the platform to avoid any
ambiguity or name clashes with the upcoming generic MHU driver. Also
rename the header guard accordingly.
This renaming is inline with other platform-specific MHU drivers, such
as the ones used on Broadcom [1], Socionext [2] or Amlogic [3] platforms.
[1] plat/brcm/common/brcm_mhu.h
[2] plat/socionext/synquacer/drivers/mhu/sq_mhu.h
[3] plat/amlogic/common/aml_mhu.c
Change-Id: I8a5e5b16e7c19bf931a90422dfca8f6a2a0663b4
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/plat/arm/board/corstone700/common/drivers/mhu/corstone700_mhu.h b/plat/arm/board/corstone700/common/drivers/mhu/corstone700_mhu.h
new file mode 100644
index 0000000..7f14ca5
--- /dev/null
+++ b/plat/arm/board/corstone700/common/drivers/mhu/corstone700_mhu.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2019-2022, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CORSTONE700_MHU_H
+#define CORSTONE700_MHU_H
+
+#define MHU_POLL_INTR_STAT_TIMEOUT 50000 /*timeout value in us*/
+
+/* CPU MHU secure channel registers */
+#define CPU_INTR_S_STAT 0x00
+#define CPU_INTR_S_SET 0x0C
+
+/* MHUv2 Control Registers Offsets */
+#define MHU_V2_MSG_CFG_OFFSET 0xF80
+#define MHU_V2_ACCESS_REQ_OFFSET 0xF88
+#define MHU_V2_ACCESS_READY_OFFSET 0xF8C
+
+#define MHU_V2_ACCESS_REQUEST(addr) \
+ mmio_write_32((addr) + MHU_V2_ACCESS_REQ_OFFSET, 0x1)
+
+#define MHU_V2_CLEAR_REQUEST(addr) \
+ mmio_write_32((addr) + MHU_V2_ACCESS_REQ_OFFSET, 0x0)
+
+#define MHU_V2_IS_ACCESS_READY(addr) \
+ (mmio_read_32((addr) + MHU_V2_ACCESS_READY_OFFSET) & 0x1)
+
+void mhu_secure_message_start(uintptr_t address, unsigned int slot_id);
+void mhu_secure_message_send(uintptr_t address,
+ unsigned int slot_id,
+ unsigned int message);
+void mhu_secure_message_end(uintptr_t address, unsigned int slot_id);
+void mhu_secure_init(void);
+
+#endif /* CORSTONE700_MHU_H */