diff --git a/.gitmodules b/.gitmodules
index 085527d..5cda80d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,4 @@
 [submodule "buildroot"]
 	path = buildroot
-	branch = 2019.05-op-build
-	url = https://github.com/open-power/buildroot
+	branch = master-p10
+	url = git@github.ibm.com:klausk/buildroot.git
diff --git a/buildroot b/buildroot
index 4a064c9..1b15050 160000
--- a/buildroot
+++ b/buildroot
@@ -1 +1 @@
-Subproject commit 4a064c9005c800a115a81cc8be0627a35a5954d6
+Subproject commit 1b15050b336859fa3e7e7a3cbf2483565e64e52c
diff --git a/openpower/configs/rainier_defconfig b/openpower/configs/rainier_defconfig
index a40f4cc..0ca4634 100644
--- a/openpower/configs/rainier_defconfig
+++ b/openpower/configs/rainier_defconfig
@@ -1,6 +1,5 @@
 BR2_powerpc64le=y
 BR2_powerpc_power8=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_4=y
 BR2_BINUTILS_EXTRA_CONFIG_OPTIONS="--enable-targets=powerpc64-linux"
 BR2_GCC_VERSION_8_X=y
 BR2_EXTRA_GCC_CONFIG_OPTIONS="--enable-targets=powerpc64-linux --disable-libsanitizer"
@@ -16,19 +15,15 @@
 BR2_ROOTFS_OVERLAY="../openpower/overlay"
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.4.18"
-BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git@github.ibm.com:p10/linux.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="98642ab42d85ff4f0ee72300856020ea0bca2e90"
+BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux-p10"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
 BR2_LINUX_KERNEL_ZIMAGE_EPAPR=y
 BR2_LINUX_KERNEL_XZ=y
 BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
-BR2_PACKAGE_SKIBOOT=y
-BR2_SKIBOOT_CUSTOM_VERSION=y
-BR2_SKIBOOT_CUSTOM_VERSION_VALUE="b81f1465872ece79fbf9867e48905a30745759ef"
-BR2_SKIBOOT_CUSTOM_GIT=y
-BR2_SKIBOOT_CUSTOM_REPO_URL="git@github.ibm.com:p10/skiboot.git"
 BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/busybox.fragment"
 BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
 BR2_PACKAGE_LINUX_FIRMWARE=y
@@ -66,15 +61,18 @@
 BR2_HOSTBOOT_BINARY_SBE_FILENAME="p10_sbe.img.ecc"
 BR2_HOSTBOOT_BINARY_SBEC_FILENAME="centaur_sbec_pad.img.ecc"
 BR2_HOSTBOOT_BINARY_WINK_FILENAME="p10.ref_image.hdr.bin.ecc"
-BR2_PACKAGE_OCMB_EXPLORER_FW=y
 BR2_IMA_CATALOG_FILENAME="ima_catalog.bin"
 BR2_OPENPOWER_TARGETING_BIN_FILENAME="RAINIER_HB.targeting.bin"
 BR2_OPENPOWER_TARGETING_ECC_FILENAME="RAINIER_HB.targeting.bin.ecc"
 BR2_BUILD_PNOR_SQUASHFS=y
+BR2_OPENPOWER_MAKE_LIDS=y
 BR2_PACKAGE_PETITBOOT=y
 BR2_PACKAGE_PETITBOOT_MTD=y
-BR2_OCC_GPU_BIN_BUILD=y
 BR2_CAPP_UCODE_BIN_FILENAME="cappucode.bin"
+BR2_SKIBOOT_CUSTOM_VERSION=y
+BR2_SKIBOOT_CUSTOM_VERSION_VALUE="b81f1465872ece79fbf9867e48905a30745759ef"
+BR2_SKIBOOT_CUSTOM_GIT=y
+BR2_SKIBOOT_CUSTOM_REPO_URL="git@github.ibm.com:p10/skiboot.git"
 BR2_PACKAGE_LOADKEYS=y
 BR2_IMA_CATALOG_DTS="POWER9"
-BR2_OPENPOWER_MAKE_LIDS=y
+BR2_PACKAGE_OCMB_EXPLORER_FW=y
diff --git a/openpower/linux-p10/0001-xhci-Reset-controller-on-xhci-shutdown.patch b/openpower/linux-p10/0001-xhci-Reset-controller-on-xhci-shutdown.patch
new file mode 100644
index 0000000..952b977
--- /dev/null
+++ b/openpower/linux-p10/0001-xhci-Reset-controller-on-xhci-shutdown.patch
@@ -0,0 +1,32 @@
+From eb9ba66045e92706878d619e0b8c94669cc993f9 Mon Sep 17 00:00:00 2001
+From: Brian King <brking@linux.vnet.ibm.com>
+Date: Wed, 25 Oct 2017 10:42:59 +1100
+Subject: [PATCH 1/2] xhci: Reset controller on xhci shutdown
+
+Fixes kexec boot. Without a hard reset, some USB chips will fail to
+initialize in a kexec booted kernel.
+
+Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
+Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
+Signed-off-by: Joel Stanley <joel@jms.id.au>
+---
+ drivers/usb/host/xhci.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
+index ed468ee..e881cde 100644
+--- a/drivers/usb/host/xhci.c
++++ b/drivers/usb/host/xhci.c
+@@ -789,6 +789,9 @@ void xhci_shutdown(struct usb_hcd *hcd)
+ 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ 			"xhci_shutdown completed - status = %x",
+ 			readl(&xhci->op_regs->status));
++
++	/* TI XHCI controllers do not come back after kexec without this hack */
++	pci_reset_function_locked(to_pci_dev(hcd->self.sysdev));
+ }
+ EXPORT_SYMBOL_GPL(xhci_shutdown);
+ 
+-- 
+1.9.4
+
diff --git a/openpower/linux-p10/0002-Openpower-kernel-release-5.8-rc1-openpower1.patch b/openpower/linux-p10/0002-Openpower-kernel-release-5.8-rc1-openpower1.patch
new file mode 100644
index 0000000..b6b622b
--- /dev/null
+++ b/openpower/linux-p10/0002-Openpower-kernel-release-5.8-rc1-openpower1.patch
@@ -0,0 +1,26 @@
+From 5c5b9e604cb11e580bf1d8e269bc8ceb8f1cc008 Mon Sep 17 00:00:00 2001
+From: Klaus Heinrich Kiwi <klaus@linux.vnet.ibm.com>
+Date: Thu, 17 Sep 2020 14:38:00 -0500
+Subject: [PATCH 2/2] Openpower kernel release 5.8-rc1-openpower1
+
+Signed-off-by: Klaus Heinrich Kiwi <klaus@linux.vnet.ibm.com>
+---
+ Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index 24a4c1b..f25f3d7 100644
+--- a/Makefile
++++ b/Makefile
+@@ -2,7 +2,7 @@
+ VERSION = 5
+ PATCHLEVEL = 8
+ SUBLEVEL = 0
+-EXTRAVERSION =
++EXTRAVERSION = -openpower1
+ NAME = Kleptomaniac Octopus
+ 
+ # *DOCUMENTATION*
+-- 
+1.9.4
+