diff --git a/meta-facebook/meta-yosemite4/conf/machine/yosemite4.conf b/meta-facebook/meta-yosemite4/conf/machine/yosemite4.conf
new file mode 100644
index 0000000..038ca35
--- /dev/null
+++ b/meta-facebook/meta-yosemite4/conf/machine/yosemite4.conf
@@ -0,0 +1,21 @@
+KMACHINE = "aspeed"
+#KERNEL_DEVICETREE = "${KMACHINE}-bmc-facebook-${MACHINE}.dtb"
+KERNEL_DEVICETREE = "aspeed-ast2600-evb.dtb"
+
+UBOOT_MACHINE = "ast2600_openbmc_spl_defconfig"
+UBOOT_DEVICETREE = "ast2600-evb"
+SPL_BINARY = "spl/u-boot-spl.bin"
+SOCSEC_SIGN_ENABLE = "0"
+
+require conf/distro/include/phosphor-static-norootfs.inc
+require conf/machine/include/facebook-compute-multihost.inc
+require conf/machine/include/ast2600.inc
+require conf/machine/include/obmc-bsp-common.inc
+require conf/machine/include/facebook-tpm2.inc
+
+FLASH_SIZE = "131072"
+
+OBMC_HOST_INSTANCES = "1 2 3 4 5 6 7 8"
+# Primary chassis as Sled plus secondary chassis in N slots.
+OBMC_CHASSIS_INSTANCES = "0 ${OBMC_HOST_INSTANCES}"
+