xilinx: common: Move ATF handover to common file

ATF handover can be used by Xilinx platforms, so move it to common
file from platform specific files.
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Change-Id: I5f0839351f534619de581d1953c8427a079487e0

plat/xilinx/common/include/plat_startup.h

+/*
+ * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLAT_STARTUP_H
+#define PLAT_STARTUP_H
+
+/* For FSBL handover */
+enum fsbl_handoff {
+	FSBL_HANDOFF_SUCCESS = 0,
+	FSBL_HANDOFF_NO_STRUCT,
+	FSBL_HANDOFF_INVAL_STRUCT,
+	FSBL_HANDOFF_TOO_MANY_PARTS
+};
+
+enum fsbl_handoff fsbl_atf_handover(entry_point_info_t *bl32_image_ep_info,
+					entry_point_info_t *bl33_image_ep_info,
+					uint64_t atf_handoff_addr);
+
+#endif /* PLAT_STARTUP_H */

plat/xilinx/zynqmp/plat_startup.c → plat/xilinx/common/plat_startup.c

 /*
- * 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
  */
@@ -8,10 +8,8 @@
 
 #include <arch_helpers.h>
 #include <common/debug.h>
-#include <lib/mmio.h>
-#include <plat_private.h>
+#include <plat_startup.h>
 
-#include "zynqmp_def.h"
 
 /*
  * ATFHandoffParams
@@ -147,6 +145,7 @@ static int get_fsbl_estate(const struct xfsbl_partition *partition)
  * Populates the bl32 and bl33 image info structures
  * @bl32:	BL32 image info structure
  * @bl33:	BL33 image info structure
+ * atf_handoff_addr:  ATF handoff address
  *
  * Process the handoff paramters from the FSBL and populate the BL32 and BL33
  * image info structures accordingly.
@@ -154,12 +153,11 @@ static int get_fsbl_estate(const struct xfsbl_partition *partition)
  * Return: Return the status of the handoff. The value will be from the
  *         fsbl_handoff enum.
  */
-enum fsbl_handoff fsbl_atf_handover(entry_point_info_t *bl32, entry_point_info_t *bl33)
+enum fsbl_handoff fsbl_atf_handover(entry_point_info_t *bl32,
+					entry_point_info_t *bl33,
+					uint64_t atf_handoff_addr)
 {
-	uint64_t atf_handoff_addr;
 	const struct xfsbl_atf_handoff_params *ATFHandoffParams;
-
-	atf_handoff_addr = mmio_read_32(PMU_GLOBAL_GEN_STORAGE6);
 	assert((atf_handoff_addr < BL31_BASE) ||
 	       (atf_handoff_addr > (uint64_t)&__BL31_END__));
 	if (!atf_handoff_addr) {

plat/xilinx/zynqmp/bl31_zynqmp_setup.c

 /*
- * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -13,8 +13,11 @@
 #include <drivers/console.h>
 #include <plat/arm/common/plat_arm.h>
 #include <plat/common/platform.h>
+#include <lib/mmio.h>
 
+#include <plat_startup.h>
 #include <plat_private.h>
+#include <zynqmp_def.h>
 
 static entry_point_info_t bl32_image_ep_info;
 static entry_point_info_t bl33_image_ep_info;
@@ -57,6 +60,7 @@ static inline void bl31_set_default_config(void)
 void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
 				u_register_t arg2, u_register_t arg3)
 {
+	uint64_t atf_handoff_addr;
 	/* Register the console to provide early debug support */
 	static console_cdns_t bl31_boot_console;
 	(void)console_cdns_register(ZYNQMP_UART_BASE,
@@ -86,12 +90,15 @@ void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
 	SET_PARAM_HEAD(&bl33_image_ep_info, PARAM_EP, VERSION_1, 0);
 	SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
 
+	atf_handoff_addr = mmio_read_32(PMU_GLOBAL_GEN_STORAGE6);
+
 	if (zynqmp_get_bootmode() == ZYNQMP_BOOTMODE_JTAG) {
 		bl31_set_default_config();
 	} else {
 		/* use parameters from FSBL */
 		enum fsbl_handoff ret = fsbl_atf_handover(&bl32_image_ep_info,
-							  &bl33_image_ep_info);
+							  &bl33_image_ep_info,
+							  atf_handoff_addr);
 		if (ret == FSBL_HANDOFF_NO_STRUCT)
 			bl31_set_default_config();
 		else if (ret != FSBL_HANDOFF_SUCCESS)

plat/xilinx/zynqmp/include/plat_private.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
  */
@@ -21,13 +21,6 @@ unsigned int zynqmp_calc_core_pos(u_register_t mpidr);
 unsigned int zynqmp_get_uart_clk(void);
 unsigned int zynqmp_get_bootmode(void);
 
-/* For FSBL handover */
-enum fsbl_handoff {
-	FSBL_HANDOFF_SUCCESS = 0,
-	FSBL_HANDOFF_NO_STRUCT,
-	FSBL_HANDOFF_INVAL_STRUCT,
-	FSBL_HANDOFF_TOO_MANY_PARTS,
-};
 
 #if ZYNQMP_WDT_RESTART
 /*
@@ -37,7 +30,4 @@ enum fsbl_handoff {
 int request_intr_type_el3(uint32_t, interrupt_type_handler_t);
 #endif
 
-enum fsbl_handoff fsbl_atf_handover(entry_point_info_t *bl32_image_ep_info,
-		       entry_point_info_t *bl33_image_ep_info);
-
 #endif /* PLAT_PRIVATE_H */

plat/xilinx/zynqmp/platform.mk

@@ -82,10 +82,10 @@ BL31_SOURCES		+=	drivers/arm/cci/cci.c				\
 				plat/common/plat_psci_common.c			\
 				plat/xilinx/common/ipi_mailbox_service/ipi_mailbox_svc.c \
 				plat/xilinx/common/pm_service/pm_ipi.c		\
+				plat/xilinx/common/plat_startup.c		\
 				plat/xilinx/zynqmp/bl31_zynqmp_setup.c		\
 				plat/xilinx/zynqmp/plat_psci.c			\
 				plat/xilinx/zynqmp/plat_zynqmp.c		\
-				plat/xilinx/zynqmp/plat_startup.c		\
 				plat/xilinx/zynqmp/plat_topology.c		\
 				plat/xilinx/zynqmp/sip_svc_setup.c		\
 				plat/xilinx/zynqmp/pm_service/pm_svc_main.c	\