diff --git a/meta-arm/meta-arm-bsp/conf/machine/corstone1000-fvp.conf b/meta-arm/meta-arm-bsp/conf/machine/corstone1000-fvp.conf
index ebfba5b..9636ffe 100644
--- a/meta-arm/meta-arm-bsp/conf/machine/corstone1000-fvp.conf
+++ b/meta-arm/meta-arm-bsp/conf/machine/corstone1000-fvp.conf
@@ -49,10 +49,3 @@
 FVP_CONFIG[board.msd_mmc.diagnostics] ?= "2"
 FVP_CONFIG[board.msd_mmc.p_max_block_count] ?= "0xFFFF"
 FVP_CONFIG[board.msd_config.pl180_fifo_depth] ?= "16"
-
-# MMC2 card configuration
-FVP_CONFIG[board.msd_mmc_2.card_type] ?= "SDHC"
-FVP_CONFIG[board.msd_mmc_2.p_fast_access] ?= "0"
-FVP_CONFIG[board.msd_mmc_2.diagnostics] ?= "2"
-FVP_CONFIG[board.msd_mmc_2.p_max_block_count] ?= "0xFFFF"
-FVP_CONFIG[board.msd_config_2.pl180_fifo_depth] ?= "16"
\ No newline at end of file
diff --git a/meta-arm/meta-arm-bsp/conf/machine/corstone500.conf b/meta-arm/meta-arm-bsp/conf/machine/corstone500.conf
new file mode 100644
index 0000000..6d2294c
--- /dev/null
+++ b/meta-arm/meta-arm-bsp/conf/machine/corstone500.conf
@@ -0,0 +1,49 @@
+#@TYPE: Machine
+#@NAME: Corstone-500 machine
+#@DESCRIPTION: Machine configuration for the Corstone-500 platform
+
+require conf/machine/include/arm/armv7a/tune-cortexa5.inc
+
+# Corstone-500 is built against poky-tiny distro.
+# poky-tiny sets PREFERRED_PROVIDER_virtual/kernel to linux-yocto-tiny.
+# Since distro config is evaluated after the machine config, we need to
+# use the strongest override possible (forcevariable) so the
+# PREFERRED_PROVIDER_virtual/kernel specified in the machine config will
+# apply.
+#
+PREFERRED_PROVIDER_virtual/kernel:forcevariable = "linux-yocto"
+PREFERRED_VERSION_linux-yocto ?= "6.1%"
+
+EXTRA_IMAGEDEPENDS += "trusted-firmware-a u-boot"
+
+IMAGE_CLASSES += "wic_nopt"
+IMAGE_FSTYPES:forcevariable = "cpio.gz squashfs wic wic.nopt"
+
+SERIAL_CONSOLES = "115200;ttyAMA0"
+
+# Corstone-500 u-boot configuration
+UBOOT_MACHINE = "corstone500_defconfig"
+UBOOT_IMAGE_ENTRYPOINT = "0x84000000"
+UBOOT_IMAGE_LOADADDRESS = "0x84000000"
+PREFERRED_VERSION_u-boot ?= "2023.01"
+
+# making sure EXTRA_IMAGEDEPENDS will be used while creating the image
+WKS_FILE_DEPENDS:append = " ${EXTRA_IMAGEDEPENDS}"
+
+WKS_FILE ?= "core-image-minimal.corstone500.wks"
+
+TEST_TARGET = "OEFVPTarget"
+TEST_SUITES = "fvp_boot"
+
+FVP_PROVIDER ?= "fvp-corstone500-native"
+FVP_EXE ?= "FVP_Corstone-500"
+FVP_CONFIG[board.flashloader0.fname] ?= "bl1.bin"
+FVP_DATA ?= "css.cluster.cpu0=${IMAGE_NAME}.wic.nopt@0x80000000"
+FVP_CONSOLE ?= "terminal_0"
+FVP_TERMINALS[css.terminal_0] ?= "console"
+FVP_TERMINALS[css.terminal_1] ?= ""
+
+# Disable openssl in kmod to shink the initramfs size
+PACKAGECONFIG:remove:pn-kmod = "openssl"
+
+IMAGE_NAME_SUFFIX = ""
diff --git a/meta-arm/meta-arm-bsp/conf/machine/fvp-baser-aemv8r64.conf b/meta-arm/meta-arm-bsp/conf/machine/fvp-baser-aemv8r64.conf
index 7d2eaf9..25ba3c8 100644
--- a/meta-arm/meta-arm-bsp/conf/machine/fvp-baser-aemv8r64.conf
+++ b/meta-arm/meta-arm-bsp/conf/machine/fvp-baser-aemv8r64.conf
@@ -9,7 +9,7 @@
 EXTRA_IMAGEDEPENDS += "boot-wrapper-aarch64"
 
 PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
-PREFERRED_VERSION_u-boot ?= "2023.01"
+PREFERRED_VERSION_u-boot ?= "2022.10"
 
 KERNEL_IMAGETYPE = "Image"
 KERNEL_DEVICETREE = "arm/fvp-baser-aemv8r64.dtb"
diff --git a/meta-arm/meta-arm-bsp/conf/machine/include/corstone1000.inc b/meta-arm/meta-arm-bsp/conf/machine/include/corstone1000.inc
index 72c0af5..aeb1411 100644
--- a/meta-arm/meta-arm-bsp/conf/machine/include/corstone1000.inc
+++ b/meta-arm/meta-arm-bsp/conf/machine/include/corstone1000.inc
@@ -5,8 +5,6 @@
 # TF-A
 TFA_PLATFORM = "corstone1000"
 EXTRA_IMAGEDEPENDS += "trusted-firmware-a"
-PREFERRED_VERSION_trusted-firmware-a ?= "2.9.%"
-PREFERRED_VERSION_tf-a-tests ?= "2.8.%"
 
 TFA_BL2_BINARY = "bl2-corstone1000.bin"
 TFA_FIP_BINARY = "fip-corstone1000.bin"
@@ -36,8 +34,8 @@
 UBOOT_EXTLINUX = "0"
 
 #optee
-PREFERRED_VERSION_optee-os ?= "3.22%"
-PREFERRED_VERSION_optee-client ?= "3.22%"
+PREFERRED_VERSION_optee-os ?= "3.20.%"
+PREFERRED_VERSION_optee-client ?= "3.18.%"
 EXTRA_IMAGEDEPENDS += "optee-os"
 OPTEE_ARCH = "arm64"
 OPTEE_BINARY = "tee-pager_v2.bin"
diff --git a/meta-arm/meta-arm-bsp/conf/machine/include/tc.inc b/meta-arm/meta-arm-bsp/conf/machine/include/tc.inc
index 872f58c..f6674ba 100644
--- a/meta-arm/meta-arm-bsp/conf/machine/include/tc.inc
+++ b/meta-arm/meta-arm-bsp/conf/machine/include/tc.inc
@@ -14,9 +14,9 @@
 PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
 
 # OP-TEE
-PREFERRED_VERSION_optee-os ?= "3.20%"
-PREFERRED_VERSION_optee-client ?= "3.20%"
-PREFERRED_VERSION_optee-test ?= "3.20%"
+PREFERRED_VERSION_optee-os ?= "3.18%"
+PREFERRED_VERSION_optee-client ?= "3.18%"
+PREFERRED_VERSION_optee-test ?= "3.18%"
 
 # Cannot use the default zImage on arm64
 KERNEL_IMAGETYPE = "Image"
@@ -30,7 +30,6 @@
 SERIAL_CONSOLES = "115200;ttyAMA0"
 
 EXTRA_IMAGEDEPENDS += "trusted-firmware-a optee-os"
-PREFERRED_VERSION_trusted-firmware-a ?= "2.8.%"
 # FIXME - there is signed image dependency/race with testimage.
 # This should be fixed in oe-core
 TESTIMAGEDEPENDS:append = " virtual/kernel:do_deploy"
diff --git a/meta-arm/meta-arm-bsp/conf/machine/n1sdp.conf b/meta-arm/meta-arm-bsp/conf/machine/n1sdp.conf
index c25a32d..16b4098 100644
--- a/meta-arm/meta-arm-bsp/conf/machine/n1sdp.conf
+++ b/meta-arm/meta-arm-bsp/conf/machine/n1sdp.conf
@@ -29,7 +29,7 @@
 
 #UEFI EDK2 firmware
 EXTRA_IMAGEDEPENDS += "edk2-firmware"
-PREFERRED_VERSION_edk2-firmware ?= "202305"
+PREFERRED_VERSION_edk2-firmware ?= "202211"
 
 #optee
 PREFERRED_VERSION_optee-os ?= "3.20.%"