diff --git a/meta-opencentauri/recipes-kernel/linux/linux-mainline/elegoo-centauri-carbon1/runtime-memory.cfg b/meta-opencentauri/recipes-kernel/linux/linux-mainline/elegoo-centauri-carbon1/runtime-memory.cfg
new file mode 100644
index 00000000..d105958c
--- /dev/null
+++ b/meta-opencentauri/recipes-kernel/linux/linux-mainline/elegoo-centauri-carbon1/runtime-memory.cfg
@@ -0,0 +1,53 @@
+# CC1 runtime footprint: hardware that cannot exist on the D1/T113 board.
+# Keep the CC1-specific PWM_SUN20I driver from fragment.cfg; this only removes
+# generic drivers for other Allwinner generations.
+# CONFIG_PINCTRL_SUN4I_A10 is not set
+# CONFIG_PINCTRL_SUN5I is not set
+# CONFIG_PINCTRL_SUN6I_A31 is not set
+# CONFIG_PINCTRL_SUN6I_A31_R is not set
+# CONFIG_PINCTRL_SUN8I_A23 is not set
+# CONFIG_PINCTRL_SUN8I_A23_R is not set
+# CONFIG_PINCTRL_SUN8I_A33 is not set
+# CONFIG_PINCTRL_SUN8I_A83T is not set
+# CONFIG_PINCTRL_SUN8I_A83T_R is not set
+# CONFIG_PINCTRL_SUN8I_H3 is not set
+# CONFIG_PINCTRL_SUN8I_H3_R is not set
+# CONFIG_PINCTRL_SUN9I_A80 is not set
+# CONFIG_PINCTRL_SUN9I_A80_R is not set
+# CONFIG_PWM_SUN4I is not set
+
+# CC1 has 128 MiB of lowmem and no application using these general-purpose
+# kernel APIs. Keep seccomp, inotify, and IPC compatibility for future tools.
+# CONFIG_HIGHMEM is not set
+# CONFIG_IO_URING is not set
+# CONFIG_FANOTIFY is not set
+
+# CC1 does not ship developer tracing/profiling or task-accounting consumers.
+# Keep KALLSYMS and IKCONFIG for field diagnostics and crash triage.
+# CONFIG_FTRACE is not set
+# CONFIG_EVENT_TRACING is not set
+# CONFIG_TRACING is not set
+# CONFIG_UPROBES is not set
+# CONFIG_UPROBE_EVENTS is not set
+# CONFIG_PERF_EVENTS is not set
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_TASK_DELAY_ACCT is not set
+# CONFIG_TASK_XACCT is not set
+# CONFIG_TASK_IO_ACCOUNTING is not set
+# CONFIG_SCHED_INFO is not set
+
+# CC1 is an IPv4-only appliance; it has no bridge, VLAN, or firewall users.
+# CONFIG_IPV6 is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_NETFILTER_ADVANCED is not set
+# CONFIG_NF_CONNTRACK is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+
+# The appliance does not run containers or per-user CPU groups.
+# CONFIG_SCHED_AUTOGROUP is not set
+# CONFIG_CGROUPS is not set
+# CONFIG_CGROUP_SCHED is not set
+# CONFIG_CGROUP_NET_CLASSID is not set
+# CONFIG_FAIR_GROUP_SCHED is not set
diff --git a/meta-opencentauri/recipes-kernel/linux/linux-mainline_%.bbappend b/meta-opencentauri/recipes-kernel/linux/linux-mainline_%.bbappend
index 92041866..d5e55338 100644
--- a/meta-opencentauri/recipes-kernel/linux/linux-mainline_%.bbappend
+++ b/meta-opencentauri/recipes-kernel/linux/linux-mainline_%.bbappend
@@ -15,6 +15,7 @@ SRC_URI:append:elegoo-centauri-carbon1 = " \
 	file://fragment.cfg \
 	file://squashfs-overlayfs.cfg \
 	file://kernel-size-reduction.cfg \
+	file://runtime-memory.cfg \
 	file://usb-net-adapters.cfg \
 	file://0001-dt-bindings-pwm-Add-binding-for-Allwinner-D1-T113-S3.patch \
 	file://0002-pwm-Add-Allwinner-s-D1-T113-S3-R329-SoCs-PWM-support.patch \