diff --git a/target/linux/apm821xx/config-5.4 b/target/linux/apm821xx/config-5.4
index 106a1426270..f2caef0e26c 100644
--- a/target/linux/apm821xx/config-5.4
+++ b/target/linux/apm821xx/config-5.4
@@ -3,9 +3,7 @@ CONFIG_44x=y
 CONFIG_460EX=y
 CONFIG_4xx=y
 CONFIG_4xx_SOC=y
-# CONFIG_ADIN_PHY is not set
 # CONFIG_ADVANCED_OPTIONS is not set
-# CONFIG_AL_FIC is not set
 CONFIG_APM821xx=y
 CONFIG_APOLLO3G=y
 # CONFIG_ARCHES is not set
@@ -48,7 +46,6 @@ CONFIG_ARCH_USE_BUILTIN_BSWAP=y
 CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
 CONFIG_ARCH_WEAK_RELEASE_ACQUIRE=y
 CONFIG_AUDIT_ARCH=y
-# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
 # CONFIG_BAMBOO is not set
 # CONFIG_BLK_DEV_INITRD is not set
 CONFIG_BLK_MQ_PCI=y
@@ -57,36 +54,28 @@ CONFIG_BLUESTONE=y
 CONFIG_BOOKE=y
 CONFIG_BOOKE_WDT=y
 # CONFIG_CANYONLANDS is not set
-CONFIG_CC_CAN_LINK=y
-CONFIG_CC_HAS_ASM_INLINE=y
 CONFIG_CC_HAS_KASAN_GENERIC=y
-CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=y
 CONFIG_CLONE_BACKWARDS=y
 CONFIG_CMDLINE="rootfstype=squashfs noinitrd"
 CONFIG_CMDLINE_BOOL=y
 CONFIG_COMPAT_32BIT_TIME=y
-# CONFIG_COUNTER is not set
 CONFIG_CPU_BIG_ENDIAN=y
 CONFIG_CRC16=y
 # CONFIG_CRC32_SARWATE is not set
 CONFIG_CRC32_SLICEBY8=y
 CONFIG_CRYPTO_ACOMP2=y
-# CONFIG_CRYPTO_ADIANTUM is not set
 CONFIG_CRYPTO_AEAD=y
 CONFIG_CRYPTO_AEAD2=y
-CONFIG_CRYPTO_AKCIPHER2=y
 CONFIG_CRYPTO_AUTHENC=y
 CONFIG_CRYPTO_CCM=y
 CONFIG_CRYPTO_CFB=y
 CONFIG_CRYPTO_CTR=y
 CONFIG_CRYPTO_DEFLATE=y
-# CONFIG_CRYPTO_DEV_ATMEL_SHA204A is not set
 CONFIG_CRYPTO_DEV_PPC4XX=y
 CONFIG_CRYPTO_DRBG=y
 CONFIG_CRYPTO_DRBG_HMAC=y
 CONFIG_CRYPTO_DRBG_MENU=y
 CONFIG_CRYPTO_ECB=y
-# CONFIG_CRYPTO_ECRDSA is not set
 CONFIG_CRYPTO_ESSIV=y
 CONFIG_CRYPTO_GCM=y
 CONFIG_CRYPTO_GF128MUL=y
@@ -96,8 +85,6 @@ CONFIG_CRYPTO_HASH2=y
 CONFIG_CRYPTO_HMAC=y
 CONFIG_CRYPTO_HW=y
 CONFIG_CRYPTO_JITTERENTROPY=y
-CONFIG_CRYPTO_KPP2=y
-CONFIG_CRYPTO_LIB_AES=y
 CONFIG_CRYPTO_LIB_SHA256=y
 CONFIG_CRYPTO_LZO=y
 CONFIG_CRYPTO_MANAGER=y
@@ -112,11 +99,8 @@ CONFIG_CRYPTO_RNG_DEFAULT=y
 CONFIG_CRYPTO_SEQIV=y
 CONFIG_CRYPTO_SHA1_PPC=y
 CONFIG_CRYPTO_SHA256=y
-# CONFIG_CRYPTO_STREEBOG is not set
-# CONFIG_CRYPTO_XXHASH is not set
 CONFIG_DATA_SHIFT=12
 CONFIG_DEBUG_MISC=y
-# CONFIG_DEBUG_PLIST is not set
 CONFIG_DMA_DIRECT_REMAP=y
 CONFIG_DMA_REMAP=y
 CONFIG_DTC=y
@@ -125,18 +109,13 @@ CONFIG_EARLY_PRINTK=y
 # CONFIG_EBONY is not set
 CONFIG_EDAC_ATOMIC_SCRUB=y
 CONFIG_EDAC_SUPPORT=y
-# CONFIG_EEPROM_EE1004 is not set
 # CONFIG_EIGER is not set
 CONFIG_ETEXT_SHIFT=12
-# CONFIG_EXFAT_FS is not set
 CONFIG_EXTRA_TARGETS="uImage"
-# CONFIG_FIELDBUS_DEV is not set
 CONFIG_FIXED_PHY=y
 CONFIG_FORCE_PCI=y
 CONFIG_FREEZER=y
 # CONFIG_FSL_LBC is not set
-# CONFIG_FS_VERITY is not set
-# CONFIG_FW_LOADER_COMPRESS is not set
 CONFIG_FW_LOADER_PAGED_BUF=y
 CONFIG_GCC_PLUGINS=y
 # CONFIG_GCC_PLUGIN_CYC_COMPLEXITY is not set
@@ -164,13 +143,9 @@ CONFIG_GENERIC_TIME_VSYSCALL=y
 # CONFIG_GEN_RTC is not set
 # CONFIG_GLACIER is not set
 CONFIG_GPIOLIB=y
-# CONFIG_GPIO_AMD_FCH is not set
-# CONFIG_GPIO_CADENCE is not set
 CONFIG_GPIO_GENERIC=y
 CONFIG_GPIO_GENERIC_PLATFORM=y
-# CONFIG_GPIO_GW_PLD is not set
 CONFIG_GPIO_SYSFS=y
-# CONFIG_HABANA_AI is not set
 CONFIG_HAS_DMA=y
 CONFIG_HAS_IOMEM=y
 CONFIG_HAS_IOPORT_MAP=y
@@ -213,19 +188,12 @@ CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
 CONFIG_HAVE_RSEQ=y
 CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
 CONFIG_HAVE_VIRT_CPU_ACCOUNTING=y
-# CONFIG_HEADERS_INSTALL is not set
-# CONFIG_HEADER_TEST is not set
 CONFIG_HW_RANDOM=y
 CONFIG_HW_RANDOM_PPC4XX=y
-CONFIG_HZ=1000
-CONFIG_HZ_1000=y
-CONFIG_HZ_PERIODIC=y
 CONFIG_I2C=y
 CONFIG_I2C_BOARDINFO=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_IBM_IIC=y
-# CONFIG_I2C_NVIDIA_GPU is not set
-# CONFIG_I3C is not set
 CONFIG_IBM_EMAC=y
 CONFIG_IBM_EMAC_EMAC4=y
 CONFIG_IBM_EMAC_POLL_WEIGHT=32
@@ -235,14 +203,7 @@ CONFIG_IBM_EMAC_RX_COPY_THRESHOLD=256
 CONFIG_IBM_EMAC_TAH=y
 CONFIG_IBM_EMAC_TXB=128
 # CONFIG_ICON is not set
-# CONFIG_IGC is not set
-# CONFIG_IKHEADERS is not set
 CONFIG_ILLEGAL_POINTER_VALUE=0
-# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
-# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
-CONFIG_INIT_STACK_NONE=y
-# CONFIG_INTERCONNECT is not set
-# CONFIG_IO_URING is not set
 CONFIG_IRQCHIP=y
 CONFIG_IRQ_DOMAIN=y
 CONFIG_IRQ_FORCED_THREADING=y
@@ -251,47 +212,31 @@ CONFIG_ISA_DMA_API=y
 # CONFIG_JFFS2_FS is not set
 # CONFIG_KATMAI is not set
 CONFIG_KERNEL_START=0xc0000000
-# CONFIG_LCD_CLASS_DEVICE is not set
-# CONFIG_LEDS_AN30259A is not set
-# CONFIG_LEDS_LM3532 is not set
-# CONFIG_LEDS_TRIGGER_AUDIO is not set
 CONFIG_LEDS_TRIGGER_MTD=y
 CONFIG_LEDS_TRIGGER_PATTERN=y
 CONFIG_LIBFDT=y
 CONFIG_LOCK_DEBUGGING_SUPPORT=y
-# CONFIG_LOCK_EVENT_COUNTS is not set
 CONFIG_LOWMEM_SIZE=0x30000000
-CONFIG_LSM="lockdown,yama,loadpin,safesetid,integrity"
 CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
 # CONFIG_MATH_EMULATION is not set
 CONFIG_MDIO_BUS=y
-# CONFIG_MDIO_BUS_MUX_MULTIPLEXER is not set
 CONFIG_MDIO_DEVICE=y
 CONFIG_MEMFD_CREATE=y
-# CONFIG_MFD_MAX77650 is not set
-# CONFIG_MFD_STMFX is not set
-# CONFIG_MFD_STPMIC1 is not set
-# CONFIG_MFD_TQMX86 is not set
 CONFIG_MIGRATION=y
-# CONFIG_MISC_ALCOR_PCI is not set
 CONFIG_MODULES_USE_ELF_RELA=y
 CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS=y
 CONFIG_MTD_CFI_ADV_OPTIONS=y
 # CONFIG_MTD_CFI_GEOMETRY is not set
-# CONFIG_MTD_HYPERBUS is not set
-# CONFIG_MTD_RAW_NAND is not set
 # CONFIG_MTD_SPLIT_SQUASHFS_ROOT is not set
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NEED_PER_CPU_KM=y
 CONFIG_NEED_SG_DMA_LENGTH=y
-# CONFIG_NET_SCH_TAPRIO is not set
-CONFIG_NET_VENDOR_GOOGLE=y
-CONFIG_NET_VENDOR_PENSANDO=y
-# CONFIG_NI_XGE_MANAGEMENT_ENET is not set
 CONFIG_NOT_COHERENT_CACHE=y
+CONFIG_NO_HZ=y
+CONFIG_NO_HZ_COMMON=y
+CONFIG_NO_HZ_IDLE=y
 CONFIG_NR_IRQS=512
-# CONFIG_NULL_TTY is not set
 CONFIG_NVMEM=y
 CONFIG_NVMEM_SYSFS=y
 CONFIG_OF=y
@@ -320,14 +265,9 @@ CONFIG_PHYLIB=y
 CONFIG_PHYSICAL_START=0x00000000
 CONFIG_PHYS_64BIT=y
 CONFIG_PHYS_ADDR_T_64BIT=y
-# CONFIG_PHY_CADENCE_DP is not set
-# CONFIG_PHY_CADENCE_DPHY is not set
-# CONFIG_PHY_FSL_IMX8MQ_USB is not set
-# CONFIG_PHY_MIXEL_MIPI_DPHY is not set
 CONFIG_PLUGIN_HOSTCC="g++"
 CONFIG_PM=y
 CONFIG_PM_AUTOSLEEP=y
-# CONFIG_PM_DEBUG is not set
 CONFIG_PM_SLEEP=y
 CONFIG_PM_WAKELOCKS=y
 CONFIG_PM_WAKELOCKS_GC=y
@@ -363,14 +303,9 @@ CONFIG_PPC_PAGE_SHIFT=12
 # CONFIG_PPC_PTDUMP is not set
 CONFIG_PPC_UDBG_16550=y
 CONFIG_PPC_WERROR=y
-# CONFIG_PRINTK_CALLER is not set
-# CONFIG_PSI is not set
 CONFIG_PTE_64BIT=y
-# CONFIG_PVPANIC is not set
 # CONFIG_RAINIER is not set
-# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
 CONFIG_RAS=y
-# CONFIG_REED_SOLOMON_TEST is not set
 CONFIG_RSEQ=y
 # CONFIG_SAM440EP is not set
 # CONFIG_SCOM_DEBUGFS is not set
@@ -378,12 +313,9 @@ CONFIG_RSEQ=y
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_FSL=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
-# CONFIG_SERIAL_FSL_LINFLEXUART is not set
 CONFIG_SERIAL_MCTRL_GPIO=y
 CONFIG_SERIAL_OF_PLATFORM=y
-# CONFIG_SERIAL_SIFIVE is not set
 CONFIG_SGL_ALLOC=y
-# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
 CONFIG_SIMPLE_GPIO=y
 CONFIG_SPARSE_IRQ=y
 CONFIG_SRCU=y
@@ -393,30 +325,17 @@ CONFIG_SWPHY=y
 CONFIG_SYSCTL_EXCEPTION_TRACE=y
 # CONFIG_TAISHAN is not set
 CONFIG_TASK_SIZE=0xc0000000
-# CONFIG_TEST_BLACKHOLE_DEV is not set
-# CONFIG_TEST_MEMCAT_P is not set
-# CONFIG_TEST_MEMINIT is not set
-# CONFIG_TEST_STACKINIT is not set
-# CONFIG_TEST_STRSCPY is not set
-# CONFIG_TEST_VMALLOC is not set
-# CONFIG_TEST_XARRAY is not set
 CONFIG_THREAD_INFO_IN_TASK=y
 CONFIG_THREAD_SHIFT=13
 CONFIG_TICK_CPU_ACCOUNTING=y
 CONFIG_TINY_SRCU=y
-# CONFIG_TI_CPSW_PHY_SEL is not set
-# CONFIG_UNICODE is not set
-# CONFIG_USB_CONN_GPIO is not set
 CONFIG_USB_SUPPORT=y
-# CONFIG_VALIDATE_FS_PARSER is not set
 CONFIG_VDSO32=y
 # CONFIG_VIRTIO_MENU is not set
 # CONFIG_VIRT_CPU_ACCOUNTING_NATIVE is not set
 # CONFIG_WARP is not set
 CONFIG_WATCHDOG_CORE=y
-CONFIG_WATCHDOG_OPEN_TIMEOUT=0
 # CONFIG_WNDR4700 is not set
-# CONFIG_XILINX_SDFEC is not set
 # CONFIG_XILINX_SYSACE is not set
 # CONFIG_XILINX_VIRTEX440_GENERIC_BOARD is not set
 CONFIG_XZ_DEC_BCJ=y