Merge changes I2b3aa9bd,I3237199b into integration

* changes:
  docs: add mt6795 to deprecated list
  feat(plat/mediatek/mt8195): add DCM driver
diff --git a/docs/about/maintainers.rst b/docs/about/maintainers.rst
index d014fbd..97e1fa8 100644
--- a/docs/about/maintainers.rst
+++ b/docs/about/maintainers.rst
@@ -594,6 +594,8 @@
 :|G|: `rockchip-linux`_
 :|M|: Heiko Stuebner <heiko@sntech.de>
 :|G|: `mmind`_
+:|M|: Julius Werner <jwerner@chromium.org>
+:|G|: `jwerner-chromium`_
 :|F|: plat/rockchip/
 
 STM32MP1 platform port
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index ab638fb..8d17d35 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -323,6 +323,12 @@
    CPU. This needs to be enabled for revisions r3p0, r3p1, r4p0, and r4p1, for
    revisions r0p0, r1p0, and r2p0 there is no workaround.
 
+For Neoverse V1, the following errata build flags are defined :
+
+-  ``ERRATA_V1_1791573``: This applies errata 1791573 workaround to Neoverse-V1
+   CPU. This needs to be enabled only for revisions r0p0 and r1p0, it is fixed
+   in r1p1.
+
 DSU Errata Workarounds
 ----------------------
 
diff --git a/docs/plat/arm/fvp/index.rst b/docs/plat/arm/fvp/index.rst
index 710043e..d41982f 100644
--- a/docs/plat/arm/fvp/index.rst
+++ b/docs/plat/arm/fvp/index.rst
@@ -12,7 +12,7 @@
 (64-bit host machine only).
 
 .. note::
-   The FVP models used are Version 11.14 Build 21, unless otherwise stated.
+   The FVP models used are Version 11.15 Build 14, unless otherwise stated.
 
 -  ``FVP_Base_AEMvA``
 -  ``FVP_Base_AEMv8A-AEMv8A``
@@ -39,7 +39,7 @@
 -  ``FVP_Base_Cortex-A76AEx8``
 -  ``FVP_Base_Cortex-A77x4``
 -  ``FVP_Base_Cortex-A78x4``
--  ``FVP_Base_Matterhornx4``
+-  ``FVP_Base_Cortex-A710x4``
 -  ``FVP_Morello``         (Version 0.10 build 542)
 -  ``FVP_Base_Neoverse-E1x1``
 -  ``FVP_Base_Neoverse-E1x2``
diff --git a/drivers/measured_boot/event_log.c b/drivers/measured_boot/event_log.c
index e0fc26e..0157b03 100644
--- a/drivers/measured_boot/event_log.c
+++ b/drivers/measured_boot/event_log.c
@@ -84,27 +84,22 @@
  *
  * @param[in] hash	Pointer to hash data of TCG_DIGEST_SIZE bytes
  * @param[in] image_ptr	Pointer to image_data_t structure
- * @return:
- *	0 = success
- *    < 0 = error code
+ *
+ * There must be room for storing this new event into the event log buffer.
  */
-static int add_event2(const uint8_t *hash, const image_data_t *image_ptr)
+static void add_event2(const uint8_t *hash, const image_data_t *image_ptr)
 {
 	void *ptr = log_ptr;
 	uint32_t name_len;
-	uint32_t size_of_event;
 
 	assert(image_ptr != NULL);
 	assert(image_ptr->name != NULL);
 
 	name_len = (uint32_t)strlen(image_ptr->name) + 1U;
-	size_of_event = name_len + (uint32_t)EVENT2_HDR_SIZE;
 
 	/* Check for space in Event Log buffer */
-	if (((uintptr_t)ptr + size_of_event) > EVENT_LOG_END) {
-		ERROR("%s(): Event Log is short of memory", __func__);
-		return -ENOMEM;
-	}
+	assert(((uintptr_t)ptr + (uint32_t)EVENT2_HDR_SIZE + name_len) <=
+	       EVENT_LOG_END);
 
 	/*
 	 * As per TCG specifications, firmware components that are measured
@@ -131,12 +126,6 @@
 	/* TCG_PCR_EVENT2.Digests[].Digest[] */
 	ptr = (uint8_t *)((uintptr_t)ptr + offsetof(tpmt_ha, digest));
 
-	/* Check for space in Event Log buffer */
-	if (((uintptr_t)ptr + TCG_DIGEST_SIZE) > EVENT_LOG_END) {
-		ERROR("%s(): Event Log is short of memory", __func__);
-		return -ENOMEM;
-	}
-
 	if (hash == NULL) {
 		/* Get BL2 hash from DTB */
 		bl2_plat_get_hash(ptr);
@@ -156,8 +145,6 @@
 	/* End of event data */
 	log_ptr = (uint8_t *)((uintptr_t)ptr +
 			offsetof(event2_data_t, event) + name_len);
-
-	return 0;
 }
 
 /*
@@ -169,7 +156,6 @@
 void event_log_init(void)
 {
 	const char locality_signature[] = TCG_STARTUP_LOCALITY_SIGNATURE;
-	const uint8_t *start_ptr;
 	void *ptr = event_log;
 
 	/* Get pointer to platform's measured_boot_data_t structure */
@@ -196,11 +182,6 @@
 	((id_event_struct_data_t *)ptr)->vendor_info_size = 0;
 	ptr = (uint8_t *)((uintptr_t)ptr +
 			offsetof(id_event_struct_data_t, vendor_info));
-	if ((uintptr_t)ptr != ((uintptr_t)event_log + ID_EVENT_SIZE)) {
-		panic();
-	}
-
-	start_ptr = (uint8_t *)ptr;
 
 	/*
 	 * The Startup Locality event should be placed in the log before
@@ -237,16 +218,11 @@
 	 */
 	((startup_locality_event_t *)ptr)->startup_locality = 0U;
 	ptr = (uint8_t *)((uintptr_t)ptr + sizeof(startup_locality_event_t));
-	if ((uintptr_t)ptr != ((uintptr_t)start_ptr + LOC_EVENT_SIZE)) {
-		panic();
-	}
 
 	log_ptr = (uint8_t *)ptr;
 
 	/* Add BL2 event */
-	if (add_event2(NULL, plat_data_ptr->images_data) != 0) {
-		panic();
-	}
+	add_event2(NULL, plat_data_ptr->images_data);
 }
 
 /*
@@ -267,14 +243,11 @@
 	unsigned char hash_data[MBEDTLS_MD_MAX_SIZE];
 	int rc;
 
-	/* Check if image_id is supported */
-	while (data_ptr->id != data_id) {
-		if ((data_ptr++)->id == INVALID_ID) {
-			ERROR("%s(): image_id %u not supported\n",
-				__func__, data_id);
-			return -EINVAL;
-		}
+	/* Get the metadata associated with this image. */
+	while ((data_ptr->id != INVALID_ID) && (data_ptr->id != data_id)) {
+		data_ptr++;
 	}
+	assert(data_ptr->id != INVALID_ID);
 
 	if (data_id == TOS_FW_CONFIG_ID) {
 		tos_fw_config_base = data_base;
@@ -291,7 +264,8 @@
 		return rc;
 	}
 
-	return add_event2(hash_data, data_ptr);
+	add_event2(hash_data, data_ptr);
+	return 0;
 }
 
 /*
diff --git a/include/lib/cpus/aarch64/neoverse_v1.h b/include/lib/cpus/aarch64/neoverse_v1.h
index 650eb4d..cea2659 100644
--- a/include/lib/cpus/aarch64/neoverse_v1.h
+++ b/include/lib/cpus/aarch64/neoverse_v1.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ * Copyright (c) 2019-2021, ARM Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -20,4 +20,10 @@
 #define NEOVERSE_V1_CPUPWRCTLR_EL1				S3_0_C15_C2_7
 #define NEOVERSE_V1_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		U(1)
 
+/*******************************************************************************
+ * CPU Auxiliary Control register specific definitions.
+ ******************************************************************************/
+#define NEOVERSE_V1_ACTLR2_EL1					S3_0_C15_C1_1
+#define NEOVERSE_V1_ACTLR2_EL1_BIT_2				(ULL(1) << 2)
+
 #endif /* NEOVERSE_V1_H */
diff --git a/include/lib/extensions/mpam.h b/include/lib/extensions/mpam.h
index ac8c00a..414adcb 100644
--- a/include/lib/extensions/mpam.h
+++ b/include/lib/extensions/mpam.h
@@ -9,7 +9,6 @@
 
 #include <stdbool.h>
 
-bool mpam_supported(void);
 void mpam_enable(bool el2_unused);
 
 #endif /* MPAM_H */
diff --git a/lib/cpus/aarch64/neoverse_v1.S b/lib/cpus/aarch64/neoverse_v1.S
index 7336294..d461b10 100644
--- a/lib/cpus/aarch64/neoverse_v1.S
+++ b/lib/cpus/aarch64/neoverse_v1.S
@@ -21,6 +21,34 @@
 #error "Neoverse-V1 supports only AArch64. Compile with CTX_INCLUDE_AARCH32_REGS=0"
 #endif
 
+	/* --------------------------------------------------
+	 * Errata Workaround for Neoverse V1 Errata #1791573.
+	 * This applies to revisions r0p0 and r1p0, fixed in r1p1.
+	 * x0: variant[4:7] and revision[0:3] of current cpu.
+	 * Shall clobber: x0-x17
+	 * --------------------------------------------------
+	 */
+func errata_neoverse_v1_1791573_wa
+	/* Check workaround compatibility. */
+	mov	x17, x30
+	bl	check_errata_1791573
+	cbz	x0, 1f
+
+	/* Set bit 2 in ACTLR2_EL1 */
+	mrs     x1, NEOVERSE_V1_ACTLR2_EL1
+	orr	x1, x1, #NEOVERSE_V1_ACTLR2_EL1_BIT_2
+	msr     NEOVERSE_V1_ACTLR2_EL1, x1
+	isb
+1:
+	ret	x17
+endfunc errata_neoverse_v1_1791573_wa
+
+func check_errata_1791573
+	/* Applies to r0p0 and r1p0. */
+	mov	x1, #0x10
+	b	cpu_rev_var_ls
+endfunc check_errata_1791573
+
 	/* ---------------------------------------------
 	 * HW will do the cache maintenance while powering down
 	 * ---------------------------------------------
@@ -42,6 +70,18 @@
 	 */
 #if REPORT_ERRATA
 func neoverse_v1_errata_report
+	stp	x8, x30, [sp, #-16]!
+
+	bl	cpu_get_rev_var
+	mov	x8, x0
+
+	/*
+	 * Report all errata. The revision-variant information is passed to
+	 * checking functions of each errata.
+	 */
+	report_errata ERRATA_V1_1791573, neoverse_v1, 1791573
+
+	ldp	x8, x30, [sp], #16
 	ret
 endfunc neoverse_v1_errata_report
 #endif
@@ -51,8 +91,13 @@
 
 	/* Disable speculative loads */
 	msr	SSBS, xzr
-
 	isb
+
+#if ERRATA_V1_1791573
+	mov	x0, x18
+	bl	errata_neoverse_v1_1791573_wa
+#endif
+
 	ret	x19
 endfunc neoverse_v1_reset_func
 
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index b1747af..b34fed6 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -372,6 +372,10 @@
 # exists in revisions r0p0, r1p0, and r2p0 as well but there is no workaround.
 ERRATA_N1_1946160	?=0
 
+# Flag to apply erratum 1791573 workaround during reset.  This erratum applies
+# to revisions r0p0 and r1p0 of the Neoverse V1 core, and was fixed in r1p1.
+ERRATA_V1_1791573	?=0
+
 # Flag to apply DSU erratum 798953. This erratum applies to DSUs revision r0p0.
 # Applying the workaround results in higher DSU power consumption on idle.
 ERRATA_DSU_798953	?=0
@@ -677,6 +681,10 @@
 $(eval $(call assert_boolean,ERRATA_N1_1946160))
 $(eval $(call add_define,ERRATA_N1_1946160))
 
+# Process ERRATA_V1_1791573 flag
+$(eval $(call assert_boolean,ERRATA_V1_1791573))
+$(eval $(call add_define,ERRATA_V1_1791573))
+
 # Process ERRATA_DSU_798953 flag
 $(eval $(call assert_boolean,ERRATA_DSU_798953))
 $(eval $(call add_define,ERRATA_DSU_798953))
diff --git a/plat/marvell/armada/a3k/common/io_addr_dec.c b/plat/marvell/armada/a3k/common/io_addr_dec.c
index b27633c..fea7f81 100644
--- a/plat/marvell/armada/a3k/common/io_addr_dec.c
+++ b/plat/marvell/armada/a3k/common/io_addr_dec.c
@@ -67,17 +67,14 @@
 	mmio_write_32(MVEBU_DEC_WIN_CTRL_REG(dec_win->dec_reg_base,
 		      win_id, dec_win->win_offset), ctrl);
 
-	INFO("set_io_addr_dec %d result: ctrl(0x%x) base(0x%x)",
+	INFO("set_io_addr_dec %d result: ctrl(0x%x) base(0x%x) remap(0x%x)\n",
 	     win_id, mmio_read_32(MVEBU_DEC_WIN_CTRL_REG(dec_win->dec_reg_base,
 	     win_id, dec_win->win_offset)),
 	     mmio_read_32(MVEBU_DEC_WIN_BASE_REG(dec_win->dec_reg_base,
-			  win_id, dec_win->win_offset)));
-	if (win_id < dec_win->max_remap)
-		INFO(" remap(%x)\n",
-		     mmio_read_32(MVEBU_DEC_WIN_REMAP_REG(dec_win->dec_reg_base,
-		     win_id, dec_win->win_offset)));
-	else
-		INFO("\n");
+			  win_id, dec_win->win_offset)),
+	     (win_id < dec_win->max_remap) ?
+		mmio_read_32(MVEBU_DEC_WIN_REMAP_REG(dec_win->dec_reg_base,
+			     win_id, dec_win->win_offset)) : 0);
 }
 
 /* Set io decode window */
@@ -167,12 +164,11 @@
 			ERROR("Failed to set IO address decode\n");
 			return -1;
 		}
-		INFO("Set IO decode window successfully, base(0x%x)",
-		     io_dec_win->dec_reg_base);
-		INFO(" win_attr(%x) max_dram_win(%d) max_remap(%d)",
+		INFO("Set IO decode window successfully, base(0x%x)"
+		     " win_attr(%x) max_dram_win(%d) max_remap(%d)"
+		     " win_offset(%d)\n", io_dec_win->dec_reg_base,
 		     io_dec_win->win_attr, io_dec_win->max_dram_win,
-		     io_dec_win->max_remap);
-		INFO(" win_offset(%d)\n", io_dec_win->win_offset);
+		     io_dec_win->max_remap, io_dec_win->win_offset);
 	}
 
 	return 0;
diff --git a/plat/qemu/qemu/include/platform_def.h b/plat/qemu/qemu/include/platform_def.h
index fbcaa63..0891d80 100644
--- a/plat/qemu/qemu/include/platform_def.h
+++ b/plat/qemu/qemu/include/platform_def.h
@@ -81,7 +81,7 @@
 #define SEC_ROM_SIZE			0x00020000
 
 #define NS_DRAM0_BASE			0x40000000
-#define NS_DRAM0_SIZE			0x3de00000
+#define NS_DRAM0_SIZE			0xc0000000
 
 #define SEC_SRAM_BASE			0x0e000000
 #define SEC_SRAM_SIZE			0x00060000
diff --git a/plat/rockchip/rk3399/drivers/dram/dram.h b/plat/rockchip/rk3399/drivers/dram/dram.h
index 0eb12cf..5572b16 100644
--- a/plat/rockchip/rk3399/drivers/dram/dram.h
+++ b/plat/rockchip/rk3399/drivers/dram/dram.h
@@ -149,7 +149,7 @@
 	uint32_t rx_cal_dqs[2][4];
 };
 
-extern __sramdata struct rk3399_sdram_params sdram_config;
+extern struct rk3399_sdram_params sdram_config;
 
 void dram_init(void);
 
diff --git a/plat/st/common/bl2_io_storage.c b/plat/st/common/bl2_io_storage.c
index 0a18d99..e603267 100644
--- a/plat/st/common/bl2_io_storage.c
+++ b/plat/st/common/bl2_io_storage.c
@@ -321,6 +321,19 @@
 	}
 }
 
+static void stm32image_io_setup(void)
+{
+	int io_result __unused;
+
+	io_result = register_io_dev_stm32image(&stm32image_dev_con);
+	assert(io_result == 0);
+
+	io_result = io_dev_open(stm32image_dev_con,
+				(uintptr_t)&stm32image_dev_info_spec,
+				&image_dev_handle);
+	assert(io_result == 0);
+}
+
 #if STM32MP_SDMMC || STM32MP_EMMC
 static void boot_mmc(enum mmc_device_type mmc_dev_type,
 		     uint16_t boot_interface_instance)
@@ -422,14 +435,6 @@
 	io_result = io_dev_open(mmc_dev_con, (uintptr_t)&mmc_device_spec,
 				&storage_dev_handle);
 	assert(io_result == 0);
-
-	io_result = register_io_dev_stm32image(&stm32image_dev_con);
-	assert(io_result == 0);
-
-	io_result = io_dev_open(stm32image_dev_con,
-				(uintptr_t)&stm32image_dev_info_spec,
-				&image_dev_handle);
-	assert(io_result == 0);
 }
 #endif /* STM32MP_SDMMC || STM32MP_EMMC */
 
@@ -475,14 +480,6 @@
 	part->part_offset = STM32MP_NOR_TEEX_OFFSET;
 	part->bkp_offset = 0U;
 #endif
-
-	io_result = register_io_dev_stm32image(&stm32image_dev_con);
-	assert(io_result == 0);
-
-	io_result = io_dev_open(stm32image_dev_con,
-				(uintptr_t)&stm32image_dev_info_spec,
-				&image_dev_handle);
-	assert(io_result == 0);
 }
 #endif /* STM32MP_SPI_NOR */
 
@@ -528,14 +525,6 @@
 	part->part_offset = STM32MP_NAND_TEEX_OFFSET;
 	part->bkp_offset = nand_dev_spec.erase_size;
 #endif
-
-	io_result = register_io_dev_stm32image(&stm32image_dev_con);
-	assert(io_result == 0);
-
-	io_result = io_dev_open(stm32image_dev_con,
-				(uintptr_t)&stm32image_dev_info_spec,
-				&image_dev_handle);
-	assert(io_result == 0);
 }
 #endif /* STM32MP_RAW_NAND */
 
@@ -582,14 +571,6 @@
 	part->part_offset = STM32MP_NAND_TEEX_OFFSET;
 	part->bkp_offset = spi_nand_dev_spec.erase_size;
 #endif
-
-	io_result = register_io_dev_stm32image(&stm32image_dev_con);
-	assert(io_result == 0);
-
-	io_result = io_dev_open(stm32image_dev_con,
-				(uintptr_t)&stm32image_dev_info_spec,
-				&image_dev_handle);
-	assert(io_result == 0);
 }
 #endif /* STM32MP_SPI_NAND */
 
@@ -621,36 +602,42 @@
 	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_SD:
 		dmbsy();
 		boot_mmc(MMC_IS_SD, boot_context->boot_interface_instance);
+		stm32image_io_setup();
 		break;
 #endif
 #if STM32MP_EMMC
 	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_EMMC:
 		dmbsy();
 		boot_mmc(MMC_IS_EMMC, boot_context->boot_interface_instance);
+		stm32image_io_setup();
 		break;
 #endif
 #if STM32MP_SPI_NOR
 	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NOR_QSPI:
 		dmbsy();
 		boot_spi_nor(boot_context);
+		stm32image_io_setup();
 		break;
 #endif
 #if STM32MP_RAW_NAND
 	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NAND_FMC:
 		dmbsy();
 		boot_fmc2_nand(boot_context);
+		stm32image_io_setup();
 		break;
 #endif
 #if STM32MP_SPI_NAND
 	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NAND_QSPI:
 		dmbsy();
 		boot_spi_nand(boot_context);
+		stm32image_io_setup();
 		break;
 #endif
 
 	default:
 		ERROR("Boot interface %d not supported\n",
 		      boot_context->boot_interface_selected);
+		panic();
 		break;
 	}
 }
diff --git a/plat/xilinx/versal/pm_service/pm_api_sys.c b/plat/xilinx/versal/pm_service/pm_api_sys.c
index 15fe187..912835a 100644
--- a/plat/xilinx/versal/pm_service/pm_api_sys.c
+++ b/plat/xilinx/versal/pm_service/pm_api_sys.c
@@ -173,7 +173,7 @@
 	/* Send request to the PLM */
 	PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag, PM_ABORT_SUSPEND,
 			 reason, primary_proc->node_id);
-	return pm_ipi_send(primary_proc, payload);
+	return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
 }
 
 /**
@@ -909,7 +909,7 @@
 
 	PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, flag, PM_SET_WAKEUP_SOURCE,
 			 target, wkup_device, enable);
-	return pm_ipi_send(primary_proc, payload);
+	return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
 }
 
 /**
diff --git a/plat/xilinx/zynqmp/bl31_zynqmp_setup.c b/plat/xilinx/zynqmp/bl31_zynqmp_setup.c
index bbe297f..47be4e1 100644
--- a/plat/xilinx/zynqmp/bl31_zynqmp_setup.c
+++ b/plat/xilinx/zynqmp/bl31_zynqmp_setup.c
@@ -20,6 +20,10 @@
 #include <plat_private.h>
 #include <zynqmp_def.h>
 
+#include <common/fdt_fixup.h>
+#include <common/fdt_wrappers.h>
+#include <libfdt.h>
+
 static entry_point_info_t bl32_image_ep_info;
 static entry_point_info_t bl33_image_ep_info;
 
@@ -159,8 +163,55 @@
 }
 #endif
 
+#if (BL31_LIMIT < PLAT_DDR_LOWMEM_MAX)
+static void prepare_dtb(void)
+{
+	void *dtb = (void *)XILINX_OF_BOARD_DTB_ADDR;
+	int ret;
+
+	/* Return if no device tree is detected */
+	if (fdt_check_header(dtb) != 0) {
+		NOTICE("Can't read DT at 0x%p\n", dtb);
+		return;
+	}
+
+	ret = fdt_open_into(dtb, dtb, XILINX_OF_BOARD_DTB_MAX_SIZE);
+	if (ret < 0) {
+		ERROR("Invalid Device Tree at %p: error %d\n", dtb, ret);
+		return;
+	}
+
+	if (dt_add_psci_node(dtb)) {
+		ERROR("Failed to add PSCI Device Tree node\n");
+		return;
+	}
+
+	if (dt_add_psci_cpu_enable_methods(dtb)) {
+		ERROR("Failed to add PSCI cpu enable methods in Device Tree\n");
+		return;
+	}
+
+	/* Reserve memory used by Trusted Firmware. */
+	if (fdt_add_reserved_memory(dtb, "tf-a", BL31_BASE, BL31_LIMIT - BL31_BASE)) {
+		WARN("Failed to add reserved memory nodes to DT.\n");
+	}
+
+	ret = fdt_pack(dtb);
+	if (ret < 0) {
+		ERROR("Failed to pack Device Tree at %p: error %d\n", dtb, ret);
+	}
+
+	clean_dcache_range((uintptr_t)dtb, fdt_blob_size(dtb));
+	INFO("Changed device tree to advertise PSCI and reserved memories.\n");
+}
+#endif
+
 void bl31_platform_setup(void)
 {
+#if (BL31_LIMIT < PLAT_DDR_LOWMEM_MAX)
+		prepare_dtb();
+#endif
+
 	/* Initialize the gic cpu and distributor interfaces */
 	plat_arm_gic_driver_init();
 	plat_arm_gic_init();
@@ -191,6 +242,10 @@
 
 
 	const mmap_region_t bl_regions[] = {
+#if (BL31_LIMIT < PLAT_DDR_LOWMEM_MAX)
+		MAP_REGION_FLAT(XILINX_OF_BOARD_DTB_ADDR, XILINX_OF_BOARD_DTB_MAX_SIZE,
+			MT_MEMORY | MT_RW | MT_NS),
+#endif
 		MAP_REGION_FLAT(BL31_BASE, BL31_END - BL31_BASE,
 			MT_MEMORY | MT_RW | MT_SECURE),
 		MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE,
diff --git a/plat/xilinx/zynqmp/include/platform_def.h b/plat/xilinx/zynqmp/include/platform_def.h
index 143385d..0c14315 100644
--- a/plat/xilinx/zynqmp/include/platform_def.h
+++ b/plat/xilinx/zynqmp/include/platform_def.h
@@ -83,9 +83,17 @@
 /*******************************************************************************
  * Platform specific page table and MMU setup constants
  ******************************************************************************/
+#define XILINX_OF_BOARD_DTB_ADDR	0x100000
+#define XILINX_OF_BOARD_DTB_MAX_SIZE	0x200000
+#define PLAT_DDR_LOWMEM_MAX		0x80000000
+
 #define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
 #define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
+#if (BL31_LIMIT < PLAT_DDR_LOWMEM_MAX)
+#define MAX_MMAP_REGIONS		8
+#else
 #define MAX_MMAP_REGIONS		7
+#endif
 #define MAX_XLAT_TABLES			5
 
 #define CACHE_WRITEBACK_SHIFT   6
diff --git a/plat/xilinx/zynqmp/platform.mk b/plat/xilinx/zynqmp/platform.mk
index 5e69151..d075a56 100644
--- a/plat/xilinx/zynqmp/platform.mk
+++ b/plat/xilinx/zynqmp/platform.mk
@@ -63,6 +63,7 @@
 				-Iplat/xilinx/zynqmp/include/			\
 				-Iplat/xilinx/zynqmp/pm_service/		\
 
+include lib/libfdt/libfdt.mk
 # Include GICv2 driver files
 include drivers/arm/gic/v2/gicv2.mk
 
@@ -94,6 +95,8 @@
 				lib/cpus/aarch64/aem_generic.S			\
 				lib/cpus/aarch64/cortex_a53.S			\
 				plat/common/plat_psci_common.c			\
+				common/fdt_fixup.c				\
+				${LIBFDT_SRCS}					\
 				plat/xilinx/common/ipi_mailbox_service/ipi_mailbox_svc.c \
 				plat/xilinx/common/pm_service/pm_ipi.c		\
 				plat/xilinx/common/plat_startup.c		\
diff --git a/plat/xilinx/zynqmp/pm_service/pm_api_sys.c b/plat/xilinx/zynqmp/pm_service/pm_api_sys.c
index 9a53408..62260bc 100644
--- a/plat/xilinx/zynqmp/pm_service/pm_api_sys.c
+++ b/plat/xilinx/zynqmp/pm_service/pm_api_sys.c
@@ -209,7 +209,7 @@
 	/* TODO: allow passing the node ID of the affected CPU */
 	PM_PACK_PAYLOAD3(payload, PM_ABORT_SUSPEND, reason,
 			 primary_proc->node_id);
-	return pm_ipi_send(primary_proc, payload);
+	return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
 }
 
 /**
@@ -228,7 +228,7 @@
 
 	PM_PACK_PAYLOAD4(payload, PM_SET_WAKEUP_SOURCE, target, wkup_node,
 			 enable);
-	return pm_ipi_send(primary_proc, payload);
+	return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
 }
 
 /**
@@ -316,7 +316,7 @@
 	uint32_t payload[PAYLOAD_ARG_CNT];
 
 	PM_PACK_PAYLOAD2(payload, PM_RELEASE_NODE, nid);
-	return pm_ipi_send(primary_proc, payload);
+	return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
 }
 
 /**
@@ -332,7 +332,7 @@
 	uint32_t payload[PAYLOAD_ARG_CNT];
 
 	PM_PACK_PAYLOAD3(payload, PM_SET_MAX_LATENCY, nid, latency);
-	return pm_ipi_send(primary_proc, payload);
+	return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
 }
 
 /* Miscellaneous API functions */
@@ -461,7 +461,7 @@
 
 	/* Send request to the PMU */
 	PM_PACK_PAYLOAD3(payload, PM_RESET_ASSERT, reset, assert);
-	return pm_ipi_send(primary_proc, payload);
+	return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
 }
 
 /**