diff --git a/.github/scripts/ci-matrix.py b/.github/scripts/ci-matrix.py
index cf0ba9796..7e27a0f68 100644
--- a/.github/scripts/ci-matrix.py
+++ b/.github/scripts/ci-matrix.py
@@ -92,7 +92,7 @@
     # served via gk7206v100's BR2_OPENIPC_SOC_ALIASES (manifest @alias).
     "gk7206v100_lite",
     # Ambarella
-    "s3l_lite",
+    "s3l_ultimate",
     # Allwinner
     "v851s_lite",
     # Anyka [AK3918EV300]
@@ -261,7 +261,7 @@
     "v851s_lite",             # Allwinner
     "ak3918ev330_lite",       # Anyka, the one 4.4 kernel's EV330 image
     "xm530_lite",             # Xiongmai
-    "s3l_lite",               # Ambarella, and squashfs NOR with UBI NAND
+    "s3l_ultimate",           # Ambarella, and squashfs NOR with UBI NAND
 ]
 
 # Board directories with no board in ALL_BOARDS. Their defconfigs exist but are
diff --git a/.github/workflows/toolchain.yml b/.github/workflows/toolchain.yml
index cba905414..342512529 100644
--- a/.github/workflows/toolchain.yml
+++ b/.github/workflows/toolchain.yml
@@ -71,7 +71,7 @@ jobs:
           v851s_lite
 
           # Ambarella
-          s3l_lite
+          s3l_ultimate
 
           # Anyka
           ak3918ev300_lite
diff --git a/br-ext-chip-ambarella/configs/s3l_lite_defconfig b/br-ext-chip-ambarella/configs/s3l_ultimate_defconfig
similarity index 97%
rename from br-ext-chip-ambarella/configs/s3l_lite_defconfig
rename to br-ext-chip-ambarella/configs/s3l_ultimate_defconfig
index 420740427..0d6e6a7f9 100644
--- a/br-ext-chip-ambarella/configs/s3l_lite_defconfig
+++ b/br-ext-chip-ambarella/configs/s3l_ultimate_defconfig
@@ -43,8 +43,8 @@ BR2_TARGET_ROOTFS_UBI=y
 BR2_OPENIPC_SOC_VENDOR="ambarella"
 BR2_OPENIPC_SOC_MODEL="s3l"
 BR2_OPENIPC_SOC_FAMILY="s3l"
-BR2_OPENIPC_VARIANT="lite"
-BR2_OPENIPC_FLASH_SIZE="8"
+BR2_OPENIPC_VARIANT="ultimate"
+BR2_OPENIPC_FLASH_SIZE="16"
 
 # Packages
 BR2_PACKAGE_AMBARELLA_OSDRV_S3L=y