drivers/mhu: derive doorbell base address

In order to allow the MHUv2 driver to be usable with multiple MHUv2
controllers, use the base address of the controller from the platform
information instead of the MHUV2_BASE_ADDR macro.

Change-Id: I4dbab87b929fb0568935e6c8b339ce67937f8cd1
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

drivers/arm/css/mhu/css_mhu_doorbell.c

 /*
- * Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -20,11 +20,13 @@ void mhu_ring_doorbell(struct scmi_channel_plat_info *plat_info)
 
 void mhuv2_ring_doorbell(struct scmi_channel_plat_info *plat_info)
 {
+	uintptr_t mhuv2_base = plat_info->db_reg_addr & MHU_V2_FRAME_BASE_MASK;
+
 	/* wake receiver */
-	MHU_V2_ACCESS_REQUEST(MHUV2_BASE_ADDR);
+	MHU_V2_ACCESS_REQUEST(mhuv2_base);
 
 	/* wait for receiver to acknowledge its ready */
-	while (MHU_V2_IS_ACCESS_READY(MHUV2_BASE_ADDR) == 0)
+	while (MHU_V2_IS_ACCESS_READY(mhuv2_base) == 0)
 		;
 
 	MHU_RING_DOORBELL(plat_info->db_reg_addr,
@@ -32,7 +34,7 @@ void mhuv2_ring_doorbell(struct scmi_channel_plat_info *plat_info)
 			plat_info->db_preserve_mask);
 
 	/* clear the access request for the receiver */
-	MHU_V2_CLEAR_REQUEST(MHUV2_BASE_ADDR);
+	MHU_V2_CLEAR_REQUEST(mhuv2_base);
 
 	return;
 }

include/drivers/arm/css/css_mhu_doorbell.h

 /*
- * Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -11,13 +11,13 @@
 
 #include <lib/mmio.h>
 
-/* MHUv2 Base Address */
-#define MHUV2_BASE_ADDR		PLAT_MHUV2_BASE
+/* MHUv2 Frame Base Mask */
+#define MHU_V2_FRAME_BASE_MASK			UL(~0xFFF)
 
 /* MHUv2 Control Registers Offsets */
-#define MHU_V2_MSG_NO_CAP_OFFSET		0xF80
-#define MHU_V2_ACCESS_REQ_OFFSET		0xF88
-#define MHU_V2_ACCESS_READY_OFFSET		0xF8C
+#define MHU_V2_MSG_NO_CAP_OFFSET		UL(0xF80)
+#define MHU_V2_ACCESS_REQ_OFFSET		UL(0xF88)
+#define MHU_V2_ACCESS_READY_OFFSET		UL(0xF8C)
 
 #define SENDER_REG_STAT(_channel)	(0x20 * (_channel))
 #define SENDER_REG_SET(_channel)	((0x20 * (_channel)) + 0xC)

plat/arm/board/juno/include/platform_def.h

 /*
- * Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -224,7 +224,6 @@
 
 /* MHU related constants */
 #define PLAT_CSS_MHU_BASE		UL(0x2b1f0000)
-#define PLAT_MHUV2_BASE			PLAT_CSS_MHU_BASE
 
 /*
  * Base address of the first memory region used for communication between AP

plat/arm/board/n1sdp/include/platform_def.h

 /*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -90,7 +90,6 @@
 
 #define PLAT_ARM_NSTIMER_FRAME_ID		0
 #define PLAT_CSS_MHU_BASE			0x45000000
-#define PLAT_MHUV2_BASE				PLAT_CSS_MHU_BASE
 #define PLAT_MAX_PWR_LVL			2
 
 #define PLAT_ARM_G1S_IRQS			ARM_G1S_IRQS,			\

plat/arm/board/rde1edge/include/platform_def.h

 /*
- * Copyright (c) 2018-2019, Arm Limited. All rights reserved.
+ * Copyright (c) 2018-2020, Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -16,7 +16,6 @@
 #define CSS_SGI_MAX_PE_PER_CPU		U(2)
 
 #define PLAT_CSS_MHU_BASE		UL(0x45400000)
-#define PLAT_MHUV2_BASE			PLAT_CSS_MHU_BASE
 
 /* Base address of DMC-620 instances */
 #define RDE1EDGE_DMC620_BASE0		UL(0x4e000000)

plat/arm/board/rdn1edge/include/platform_def.h

 /*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -16,7 +16,6 @@
 #define CSS_SGI_MAX_PE_PER_CPU		U(1)
 
 #define PLAT_CSS_MHU_BASE		UL(0x45400000)
-#define PLAT_MHUV2_BASE			PLAT_CSS_MHU_BASE
 
 /* Base address of DMC-620 instances */
 #define RDN1EDGE_DMC620_BASE0		UL(0x4e000000)

plat/arm/board/sgi575/include/platform_def.h

 /*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -16,7 +16,6 @@
 #define CSS_SGI_MAX_PE_PER_CPU		U(1)
 
 #define PLAT_CSS_MHU_BASE		UL(0x45000000)
-#define PLAT_MHUV2_BASE			PLAT_CSS_MHU_BASE
 
 /* Base address of DMC-620 instances */
 #define SGI575_DMC620_BASE0		UL(0x4e000000)

plat/arm/css/sgm/include/sgm_base_platform_def.h

 /*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -86,7 +86,6 @@
 
 /* MHU related constants */
 #define PLAT_CSS_MHU_BASE		0x2b1f0000
-#define PLAT_MHUV2_BASE			PLAT_CSS_MHU_BASE
 
 #define PLAT_ARM_TRUSTED_ROM_BASE	0x00000000
 #define PLAT_ARM_TRUSTED_ROM_SIZE	0x00080000

plat/socionext/synquacer/include/platform_def.h

 /*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -80,7 +80,6 @@
 #define DRAMINFO_BASE			0x2E00FFC0
 
 #define PLAT_SQ_MHU_BASE		0x45000000
-#define PLAT_MHUV2_BASE			0xFFFFFFFF /* MHUV2 is not supported */
 
 #define PLAT_SQ_SCP_COM_SHARED_MEM_BASE		0x45400000
 #define SCPI_CMD_GET_DRAMINFO			0x1