diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index d4b356d102244b01ec576947317509aa46b07fd6..62c1ecacb40808b1803dd7dc8fd20f8e607d8f83 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -181,6 +181,7 @@ config LOONGARCH
 	select USE_PERCPU_NUMA_NODE_ID
 	select USER_STACKTRACE_SUPPORT
 	select ZONE_DMA32
+	select CPUMASK_OFFSTACK if NR_CPUS > 256
 
 config 32BIT
 	bool
@@ -444,8 +445,8 @@ config HOTPLUG_CPU
 	  Say N if you want to disable CPU hotplug.
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-256)"
-	range 2 256
+	int "Maximum number of CPUs (2-2048)"
+	range 2 2048
 	depends on SMP
 	default "64"
 	help
diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
index 4e1f8e7e2e1106cb3f18932b0913f6887b4aec79..1cff82a8bc4dbc3de0bb084244fded944c030e87 100644
--- a/arch/loongarch/configs/loongson3_defconfig
+++ b/arch/loongarch/configs/loongson3_defconfig
@@ -43,7 +43,7 @@ CONFIG_KEXEC=y
 CONFIG_CRASH_DUMP=y
 CONFIG_CMDLINE="vfio_iommu_type1.allow_unsafe_interrupts=1 nokaslr"
 CONFIG_CMDLINE_EXTEND=y
-CONFIG_NR_CPUS=256
+CONFIG_NR_CPUS=2048
 CONFIG_NUMA=y
 CONFIG_ARCH_IOREMAP=y
 CONFIG_CPU_HAS_LSX=y
@@ -852,6 +852,7 @@ CONFIG_I40E_DCB=y
 CONFIG_I40EVF=m
 CONFIG_ICE=m
 CONFIG_FM10K=m
+CONFIG_IGC=m
 # CONFIG_NET_VENDOR_MARVELL is not set
 CONFIG_MLX4_EN=m
 # CONFIG_MLX4_CORE_GEN2 is not set
@@ -1185,6 +1186,7 @@ CONFIG_PINCTRL_LOONGSON2=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_GPIO_AMDPT=m
 CONFIG_GPIO_LOONGSON_64BIT=y
+CONFIG_GPIO_PCA953X=m
 CONFIG_GPIO_VIPERBOARD=m
 CONFIG_POWER_RESET=y
 CONFIG_SENSORS_AD7414=m