diff --git a/arch/arm/cpu/armv7/ls102xa/Kconfig b/arch/arm/cpu/armv7/ls102xa/Kconfig
index 3e292bf..46ace7e 100644
--- a/arch/arm/cpu/armv7/ls102xa/Kconfig
+++ b/arch/arm/cpu/armv7/ls102xa/Kconfig
@@ -98,7 +98,6 @@
 
 config SYS_FSL_QSPI_SKIP_CLKSEL
 	bool "Skip setting QSPI clock during SoC init"
-	default 0
 	help
 	   To improve startup times when booting from QSPI flash, the QSPI
 	   frequency can be set very early in the boot process. If this option
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index a8b493e..d46934c 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -739,7 +739,7 @@
 config SYS_FSL_BOOTROM_BASE
 	hex
 	depends on FSL_LSCH2
-	default 0
+	default 0x0
 
 config SYS_FSL_BOOTROM_SIZE
 	hex
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index d94b582..2136ab7 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -181,7 +181,7 @@
 config SPL_IMX_ROMAPI_LOADADDR
 	hex "Default load address to load image through ROM API"
 	depends on IMX8_ROMAPI || SPL_BOOTROM_SUPPORT
-	default 0
+	default 0x0
 
 config IMX_DCD_ADDR
 	hex "DCD Blocks location on the image"
diff --git a/arch/arm/mach-imx/imx8/Kconfig b/arch/arm/mach-imx/imx8/Kconfig
index 15f844f..59d11b3 100644
--- a/arch/arm/mach-imx/imx8/Kconfig
+++ b/arch/arm/mach-imx/imx8/Kconfig
@@ -34,11 +34,11 @@
 
 config BOOTAUX_RESERVED_MEM_BASE
 	hex "i.MX auxiliary core dram memory base"
-	default 0
+	default 0x0
 
 config BOOTAUX_RESERVED_MEM_SIZE
 	hex "i.MX auxiliary core dram memory size"
-	default 0
+	default 0x0
 
 choice
 	prompt "i.MX8 board select"
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 49da93d..4569a9c 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -469,7 +469,7 @@
 
 config ROCKCHIP_SPL_RESERVE_IRAM
 	hex "Size of IRAM reserved in SPL"
-	default 0
+	default 0x0
 	help
 	  SPL may need reserve memory for firmware loaded by SPL, whose load
 	  address is in IRAM and may overlay with SPL text area if not
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index e20c3a3..9d5df2c 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -568,7 +568,7 @@
 
 config DRAM_TPR3
 	hex "sunxi dram tpr3 value"
-	default 0
+	default 0x0
 	---help---
 	Set the dram controller tpr3 parameter. This parameter configures
 	the delay on the command lane and also phase shifts, which are
@@ -579,7 +579,7 @@
 
 config DRAM_DQS_GATING_DELAY
 	hex "sunxi dram dqs_gating_delay value"
-	default 0
+	default 0x0
 	---help---
 	Set the dram controller dqs_gating_delay parmeter. Each byte
 	encodes the DQS gating delay for each byte lane. The delay
diff --git a/arch/powerpc/cpu/mpc8xx/Kconfig b/arch/powerpc/cpu/mpc8xx/Kconfig
index bd2af8d..1731c96 100644
--- a/arch/powerpc/cpu/mpc8xx/Kconfig
+++ b/arch/powerpc/cpu/mpc8xx/Kconfig
@@ -94,7 +94,7 @@
 
 config SYS_SYPCR
 	hex "SYPCR register" if !WDT_MPC8xxx
-	default 0
+	default 0x0
 	help
 	  System Protection Control (11-9)
 
diff --git a/boot/Kconfig b/boot/Kconfig
index e8fb03b..b00d7a8 100644
--- a/boot/Kconfig
+++ b/boot/Kconfig
@@ -1007,7 +1007,7 @@
 
 config BOOTSTAGE_STASH_ADDR
 	hex "Address to stash boot timing information"
-	default 0
+	default 0x0
 	help
 	  Provide an address which will not be overwritten by the OS when it
 	  starts, so that it can read this information when ready.
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 7f65e31..8ab47b3 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -517,7 +517,7 @@
 config CMD_SPL_NAND_OFS
 	hex "Offset of OS args or dtb for Falcon-mode NAND boot"
 	depends on CMD_SPL && (TPL_NAND_SUPPORT || SPL_NAND_SUPPORT)
-	default 0
+	default 0x0
 	help
 	  This provides the offset of the command line arguments for Linux
 	  when booting from NAND in Falcon mode.  See doc/README.falcon
@@ -527,7 +527,7 @@
 config CMD_SPL_NOR_OFS
 	hex "Offset of OS args or dtb for Falcon-mode NOR boot"
 	depends on CMD_SPL && SPL_NOR_SUPPORT
-	default 0
+	default 0x0
 	help
 	  This provides the offset of the command line arguments or dtb for
 	  Linux when booting from NOR in Falcon mode.
@@ -1514,7 +1514,7 @@
 config DEFAULT_SPI_MODE
 	hex "default spi mode used by sspi command (see include/spi.h)"
 	depends on CMD_SPI
-	default 0
+	default 0x0
 
 config CMD_TEMPERATURE
 	bool "temperature - display the temperature from thermal sensors"
@@ -1805,7 +1805,7 @@
 	depends on BOOTP_PXE
 	default 0x16 if ARM64
 	default 0x15 if ARM
-	default 0 if X86
+	default 0x0 if X86
 
 config BOOTP_VCI_STRING
 	string
diff --git a/common/Kconfig b/common/Kconfig
index cdb77a6..0b09bd6 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -1031,7 +1031,7 @@
 config BLOBLIST_SIZE_RELOC
 	hex "Size of bloblist after relocation"
 	default BLOBLIST_SIZE if BLOBLIST_FIXED || BLOBLIST_ALLOC
-	default 0 if BLOBLIST_PASSAGE
+	default 0x0 if BLOBLIST_PASSAGE
 	help
 	  Sets the size of the bloblist in bytes after relocation. Since U-Boot
 	  has a lot more memory available then, it is possible to use a larger
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index c5dd476..1c2fe78 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -67,7 +67,7 @@
 config SPL_SIZE_LIMIT_PROVIDE_STACK
 	hex "SPL image size check: provide stack space before relocation"
 	depends on SPL_SIZE_LIMIT > 0
-	default 0
+	default 0x0
 	help
 	  If set, this size is reserved in SPL_SIZE_LIMIT check to ensure such
 	  an image does not overflow SRAM if SPL_SIZE_LIMIT describes the size
diff --git a/common/spl/Kconfig.tpl b/common/spl/Kconfig.tpl
index 3d6cf1e..cc71578 100644
--- a/common/spl/Kconfig.tpl
+++ b/common/spl/Kconfig.tpl
@@ -126,7 +126,7 @@
 
 config TPL_TEXT_BASE
 	hex "Base address for the .text section of the TPL stage"
-	default 0
+	default 0x0
 	help
 	  The base address for the .text section of the TPL stage.
 
diff --git a/configs/am335x_guardian_defconfig b/configs/am335x_guardian_defconfig
index a485cc6..7c4085d 100644
--- a/configs/am335x_guardian_defconfig
+++ b/configs/am335x_guardian_defconfig
@@ -17,7 +17,6 @@
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_BOOTCOUNT_BOOTLIMIT=3
 CONFIG_SPL=y
-CONFIG_BOOTSTAGE_STASH_ADDR=0x0
 CONFIG_ENV_OFFSET_REDUND=0x540000
 CONFIG_SPL_LIBDISK_SUPPORT=y
 CONFIG_SYS_MEMTEST_START=0x80000000
diff --git a/configs/efi-x86_app32_defconfig b/configs/efi-x86_app32_defconfig
index 50975db..1bfc01f 100644
--- a/configs/efi-x86_app32_defconfig
+++ b/configs/efi-x86_app32_defconfig
@@ -2,7 +2,7 @@
 CONFIG_NR_DRAM_BANKS=8
 CONFIG_ENV_SIZE=0x1000
 CONFIG_DEFAULT_DEVICE_TREE="efi-x86_app"
-CONFIG_DEBUG_UART_BASE=0
+CONFIG_DEBUG_UART_BASE=0x0
 CONFIG_DEBUG_UART_CLOCK=0
 CONFIG_VENDOR_EFI=y
 CONFIG_TARGET_EFI_APP32=y
diff --git a/configs/efi-x86_app64_defconfig b/configs/efi-x86_app64_defconfig
index 0fc358d..46a1900 100644
--- a/configs/efi-x86_app64_defconfig
+++ b/configs/efi-x86_app64_defconfig
@@ -2,7 +2,7 @@
 CONFIG_NR_DRAM_BANKS=8
 CONFIG_ENV_SIZE=0x1000
 CONFIG_DEFAULT_DEVICE_TREE="efi-x86_app"
-CONFIG_DEBUG_UART_BASE=0
+CONFIG_DEBUG_UART_BASE=0x0
 CONFIG_DEBUG_UART_CLOCK=0
 CONFIG_X86_RUN_64BIT=y
 CONFIG_VENDOR_EFI=y
diff --git a/configs/evb-rk3229_defconfig b/configs/evb-rk3229_defconfig
index c1e7f39..7469f3f 100644
--- a/configs/evb-rk3229_defconfig
+++ b/configs/evb-rk3229_defconfig
@@ -12,7 +12,6 @@
 CONFIG_DEFAULT_DEVICE_TREE="rk3229-evb"
 CONFIG_SPL_TEXT_BASE=0x60000000
 CONFIG_ROCKCHIP_RK322X=y
-CONFIG_ROCKCHIP_SPL_RESERVE_IRAM=0x0
 CONFIG_TARGET_EVB_RK3229=y
 CONFIG_SPL_STACK_R_ADDR=0x60600000
 CONFIG_DEBUG_UART_BASE=0x11030000
diff --git a/configs/evb-rk3308_defconfig b/configs/evb-rk3308_defconfig
index a13a809..d1e7858 100644
--- a/configs/evb-rk3308_defconfig
+++ b/configs/evb-rk3308_defconfig
@@ -11,7 +11,6 @@
 CONFIG_DEFAULT_DEVICE_TREE="rk3308-evb"
 CONFIG_DM_RESET=y
 CONFIG_ROCKCHIP_RK3308=y
-CONFIG_ROCKCHIP_SPL_RESERVE_IRAM=0x0
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_TARGET_EVB_RK3308=y
 CONFIG_SPL_STACK_R_ADDR=0xc00000
diff --git a/configs/imx6q_logic_defconfig b/configs/imx6q_logic_defconfig
index 2814e2c..74733c4 100644
--- a/configs/imx6q_logic_defconfig
+++ b/configs/imx6q_logic_defconfig
@@ -86,7 +86,6 @@
 CONFIG_LED_GPIO=y
 CONFIG_MISC=y
 CONFIG_I2C_EEPROM=y
-CONFIG_SYS_I2C_EEPROM_ADDR=0x0
 CONFIG_FSL_USDHC=y
 CONFIG_MTD=y
 CONFIG_DM_MTD=y
diff --git a/configs/imx8mm_data_modul_edm_sbc_defconfig b/configs/imx8mm_data_modul_edm_sbc_defconfig
index f63eb4f..e2bca40 100644
--- a/configs/imx8mm_data_modul_edm_sbc_defconfig
+++ b/configs/imx8mm_data_modul_edm_sbc_defconfig
@@ -233,6 +233,5 @@
 CONFIG_USB_GADGET_VENDOR_NUM=0x0525
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
 CONFIG_CI_UDC=y
-CONFIG_SDP_LOADADDR=0x0
 CONFIG_USB_FUNCTION_ACM=y
 CONFIG_IMX_WATCHDOG=y
diff --git a/configs/imx8mn_beacon_2g_defconfig b/configs/imx8mn_beacon_2g_defconfig
index fab3ab1..975fcc2 100644
--- a/configs/imx8mn_beacon_2g_defconfig
+++ b/configs/imx8mn_beacon_2g_defconfig
@@ -142,4 +142,3 @@
 CONFIG_USB_GADGET_VENDOR_NUM=0x0525
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
 CONFIG_CI_UDC=y
-CONFIG_SDP_LOADADDR=0x0
diff --git a/configs/imx8mn_beacon_defconfig b/configs/imx8mn_beacon_defconfig
index f810d4b..f4ecdc8 100644
--- a/configs/imx8mn_beacon_defconfig
+++ b/configs/imx8mn_beacon_defconfig
@@ -149,5 +149,4 @@
 CONFIG_USB_GADGET_VENDOR_NUM=0x0525
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
 CONFIG_CI_UDC=y
-CONFIG_SDP_LOADADDR=0x0
 CONFIG_IMX_WATCHDOG=y
diff --git a/configs/imx8mn_beacon_fspi_defconfig b/configs/imx8mn_beacon_fspi_defconfig
index 8705d9b..f5e57fb 100644
--- a/configs/imx8mn_beacon_fspi_defconfig
+++ b/configs/imx8mn_beacon_fspi_defconfig
@@ -149,7 +149,6 @@
 CONFIG_USB_GADGET_VENDOR_NUM=0x0525
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
 CONFIG_CI_UDC=y
-CONFIG_SDP_LOADADDR=0x0
 CONFIG_IMX_WATCHDOG=y
 CONFIG_FSPI_CONF_HEADER=y
 CONFIG_FSPI_CONF_FILE="fspi_header.bin"
diff --git a/configs/imx8mp_beacon_defconfig b/configs/imx8mp_beacon_defconfig
index 2570eb6..c6a3e35 100644
--- a/configs/imx8mp_beacon_defconfig
+++ b/configs/imx8mp_beacon_defconfig
@@ -172,7 +172,6 @@
 CONFIG_USB_GADGET_MANUFACTURER="FSL"
 CONFIG_USB_GADGET_VENDOR_NUM=0x1fc9
 CONFIG_USB_GADGET_PRODUCT_NUM=0x0152
-CONFIG_SDP_LOADADDR=0x0
 CONFIG_USB_FUNCTION_ACM=y
 CONFIG_USB_ETHER=y
 CONFIG_USB_ETH_CDC=y
diff --git a/configs/imx8mp_data_modul_edm_sbc_defconfig b/configs/imx8mp_data_modul_edm_sbc_defconfig
index 2ff577f..d3b629c 100644
--- a/configs/imx8mp_data_modul_edm_sbc_defconfig
+++ b/configs/imx8mp_data_modul_edm_sbc_defconfig
@@ -257,7 +257,6 @@
 CONFIG_USB_GADGET_MANUFACTURER="Data Modul"
 CONFIG_USB_GADGET_VENDOR_NUM=0x0525
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
-CONFIG_SDP_LOADADDR=0x0
 CONFIG_USB_FUNCTION_ACM=y
 CONFIG_USB_ETHER=y
 CONFIG_USB_ETH_CDC=y
diff --git a/configs/imx8mp_dhcom_pdk2_defconfig b/configs/imx8mp_dhcom_pdk2_defconfig
index 14ac499..24c87aa 100644
--- a/configs/imx8mp_dhcom_pdk2_defconfig
+++ b/configs/imx8mp_dhcom_pdk2_defconfig
@@ -255,7 +255,6 @@
 CONFIG_USB_GADGET_MANUFACTURER="DH electronics"
 CONFIG_USB_GADGET_VENDOR_NUM=0x0525
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
-CONFIG_SDP_LOADADDR=0x0
 CONFIG_USB_FUNCTION_ACM=y
 CONFIG_USB_ETHER=y
 CONFIG_USB_ETH_CDC=y
diff --git a/configs/imx8mp_dhcom_pdk3_defconfig b/configs/imx8mp_dhcom_pdk3_defconfig
index 3b26f31..3e89e0f 100644
--- a/configs/imx8mp_dhcom_pdk3_defconfig
+++ b/configs/imx8mp_dhcom_pdk3_defconfig
@@ -258,7 +258,6 @@
 CONFIG_USB_GADGET_MANUFACTURER="DH electronics"
 CONFIG_USB_GADGET_VENDOR_NUM=0x0525
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
-CONFIG_SDP_LOADADDR=0x0
 CONFIG_USB_FUNCTION_ACM=y
 CONFIG_USB_ETHER=y
 CONFIG_USB_ETH_CDC=y
diff --git a/configs/kontron_sl28_defconfig b/configs/kontron_sl28_defconfig
index 8fe2798..21a3979 100644
--- a/configs/kontron_sl28_defconfig
+++ b/configs/kontron_sl28_defconfig
@@ -20,7 +20,6 @@
 CONFIG_SPL_SERIAL=y
 CONFIG_SPL_STACK=0x18009ff0
 CONFIG_SPL_SIZE_LIMIT=0x20000
-CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK=0x0
 CONFIG_SPL=y
 CONFIG_ENV_OFFSET_REDUND=0x3f0000
 CONFIG_SPL_SPI_FLASH_SUPPORT=y
@@ -130,7 +129,6 @@
 CONFIG_WDT=y
 CONFIG_WDT_SL28CPLD=y
 CONFIG_WDT_SP805=y
-CONFIG_OF_LIBFDT_ASSUME_MASK=0x0
 CONFIG_EFI_SET_TIME=y
 CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
 CONFIG_EFI_CAPSULE_FIRMWARE_FIT=y
diff --git a/configs/lion-rk3368_defconfig b/configs/lion-rk3368_defconfig
index 7c55b3b..9c29eb6 100644
--- a/configs/lion-rk3368_defconfig
+++ b/configs/lion-rk3368_defconfig
@@ -10,7 +10,6 @@
 CONFIG_DEFAULT_DEVICE_TREE="rk3368-lion-haikou"
 CONFIG_SPL_TEXT_BASE=0x00000000
 CONFIG_ROCKCHIP_RK3368=y
-CONFIG_ROCKCHIP_SPL_RESERVE_IRAM=0x0
 CONFIG_TPL_LIBCOMMON_SUPPORT=y
 CONFIG_TPL_LIBGENERIC_SUPPORT=y
 CONFIG_SPL_DRIVERS_MISC=y
diff --git a/configs/roc-cc-rk3308_defconfig b/configs/roc-cc-rk3308_defconfig
index 9a789b2..3f3c223 100644
--- a/configs/roc-cc-rk3308_defconfig
+++ b/configs/roc-cc-rk3308_defconfig
@@ -11,7 +11,6 @@
 CONFIG_DEFAULT_DEVICE_TREE="rk3308-roc-cc"
 CONFIG_DM_RESET=y
 CONFIG_ROCKCHIP_RK3308=y
-CONFIG_ROCKCHIP_SPL_RESERVE_IRAM=0x0
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_TARGET_ROC_RK3308_CC=y
 CONFIG_SPL_STACK_R_ADDR=0xc00000
diff --git a/configs/rock-pi-s-rk3308_defconfig b/configs/rock-pi-s-rk3308_defconfig
index cc3274a..8c13f7f 100644
--- a/configs/rock-pi-s-rk3308_defconfig
+++ b/configs/rock-pi-s-rk3308_defconfig
@@ -11,7 +11,6 @@
 CONFIG_DEFAULT_DEVICE_TREE="rk3308-rock-pi-s"
 CONFIG_DM_RESET=y
 CONFIG_ROCKCHIP_RK3308=y
-CONFIG_ROCKCHIP_SPL_RESERVE_IRAM=0x0
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_TARGET_EVB_RK3308=y
 CONFIG_SPL_STACK_R_ADDR=0xc00000
diff --git a/configs/sandbox64_defconfig b/configs/sandbox64_defconfig
index bf3ef0c..0e079d7 100644
--- a/configs/sandbox64_defconfig
+++ b/configs/sandbox64_defconfig
@@ -4,7 +4,6 @@
 CONFIG_DEFAULT_DEVICE_TREE="sandbox64"
 CONFIG_DM_RESET=y
 CONFIG_PRE_CON_BUF_ADDR=0x100000
-CONFIG_BOOTSTAGE_STASH_ADDR=0x0
 CONFIG_SYS_LOAD_ADDR=0x0
 CONFIG_PCI=y
 CONFIG_SANDBOX64=y
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index ea2b256..f031b50 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -4,7 +4,6 @@
 CONFIG_DEFAULT_DEVICE_TREE="sandbox"
 CONFIG_DM_RESET=y
 CONFIG_PRE_CON_BUF_ADDR=0xf0000
-CONFIG_BOOTSTAGE_STASH_ADDR=0x0
 CONFIG_SYS_LOAD_ADDR=0x0
 CONFIG_PCI=y
 CONFIG_DEBUG_UART=y
diff --git a/configs/sandbox_flattree_defconfig b/configs/sandbox_flattree_defconfig
index 8aa2956..c20015d 100644
--- a/configs/sandbox_flattree_defconfig
+++ b/configs/sandbox_flattree_defconfig
@@ -3,7 +3,6 @@
 CONFIG_ENV_SIZE=0x2000
 CONFIG_DEFAULT_DEVICE_TREE="sandbox"
 CONFIG_DM_RESET=y
-CONFIG_BOOTSTAGE_STASH_ADDR=0x0
 CONFIG_SYS_LOAD_ADDR=0x0
 CONFIG_PCI=y
 CONFIG_DEBUG_UART=y
diff --git a/configs/sandbox_noinst_defconfig b/configs/sandbox_noinst_defconfig
index 2c6aab6..f6e3519 100644
--- a/configs/sandbox_noinst_defconfig
+++ b/configs/sandbox_noinst_defconfig
@@ -10,7 +10,6 @@
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_SPL_SYS_MALLOC_F_LEN=0x8000
 CONFIG_SPL=y
-CONFIG_BOOTSTAGE_STASH_ADDR=0x0
 CONFIG_SYS_LOAD_ADDR=0x0
 CONFIG_PCI=y
 CONFIG_SANDBOX_SPL=y
diff --git a/configs/sandbox_spl_defconfig b/configs/sandbox_spl_defconfig
index 8d50162..7e6ee93 100644
--- a/configs/sandbox_spl_defconfig
+++ b/configs/sandbox_spl_defconfig
@@ -10,7 +10,6 @@
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_SPL_SYS_MALLOC_F_LEN=0x8000
 CONFIG_SPL=y
-CONFIG_BOOTSTAGE_STASH_ADDR=0x0
 CONFIG_SYS_LOAD_ADDR=0x0
 CONFIG_PCI=y
 CONFIG_SANDBOX_SPL=y
diff --git a/configs/sandbox_vpl_defconfig b/configs/sandbox_vpl_defconfig
index f3a0fd1..9ac800a 100644
--- a/configs/sandbox_vpl_defconfig
+++ b/configs/sandbox_vpl_defconfig
@@ -15,7 +15,6 @@
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_SPL_SYS_MALLOC_F_LEN=0x8000
 CONFIG_SPL=y
-CONFIG_BOOTSTAGE_STASH_ADDR=0x0
 CONFIG_SYS_LOAD_ADDR=0x0
 CONFIG_PCI=y
 CONFIG_SANDBOX_SPL=y
diff --git a/configs/xilinx_versal_net_virt_defconfig b/configs/xilinx_versal_net_virt_defconfig
index 97904bd..54ba0b7 100644
--- a/configs/xilinx_versal_net_virt_defconfig
+++ b/configs/xilinx_versal_net_virt_defconfig
@@ -77,7 +77,6 @@
 CONFIG_ZYNQMP_IPI=y
 CONFIG_MISC=y
 CONFIG_I2C_EEPROM=y
-CONFIG_SYS_I2C_EEPROM_ADDR=0x0
 CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_MMC_IO_VOLTAGE=y
 CONFIG_MMC_UHS_SUPPORT=y
diff --git a/configs/xilinx_zynqmp_virt_defconfig b/configs/xilinx_zynqmp_virt_defconfig
index acab38f..2626084 100644
--- a/configs/xilinx_zynqmp_virt_defconfig
+++ b/configs/xilinx_zynqmp_virt_defconfig
@@ -11,7 +11,6 @@
 CONFIG_SPL_STACK_R_ADDR=0x18000000
 CONFIG_SPL_STACK=0xfffffffc
 CONFIG_SPL_SIZE_LIMIT=0x2a000
-CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK=0x0
 CONFIG_SPL=y
 CONFIG_ENV_OFFSET_REDUND=0x1E80000
 CONFIG_SPL_SPI_FLASH_SUPPORT=y
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 6baaa6f..1abea3f 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -167,7 +167,7 @@
 
 config SYS_ATA_BASE_ADDR
 	hex "Base address of IDE controller"
-	default 0
+	default 0x0
 	help
 	  This is the address of the IDE controller, from which other addresses
 	  are calculated. Each bus is at a fixed offset from this address,
diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig
index a3df9aa..837c6f1 100644
--- a/drivers/fastboot/Kconfig
+++ b/drivers/fastboot/Kconfig
@@ -56,7 +56,7 @@
 				ROCKCHIP_RK3399
 	default 0x280000 if ROCKCHIP_RK3368
 	default 0x100000 if ARCH_ZYNQMP
-	default 0 if SANDBOX
+	default 0x0 if SANDBOX
 	help
 	  The fastboot protocol requires a large memory buffer for
 	  downloads. Define this to the starting RAM address to use for
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 4c76fd7..4f42200 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -372,7 +372,7 @@
 
 config SYS_MXC_I2C1_SLAVE
 	hex "I2C1 Slave"
-	default 0
+	default 0x0
 	help
 	 MXC I2C1 Slave
 endif
@@ -387,7 +387,7 @@
 
 config SYS_MXC_I2C2_SLAVE
 	hex "I2C2 Slave"
-	default 0
+	default 0x0
 	help
 	 MXC I2C2 Slave
 endif
@@ -401,7 +401,7 @@
 
 config SYS_MXC_I2C3_SLAVE
 	hex "I2C3 Slave"
-	default 0
+	default 0x0
 	help
 	 MXC I2C3 Slave
 endif
@@ -415,7 +415,7 @@
 
 config SYS_MXC_I2C4_SLAVE
 	hex "I2C4 Slave"
-	default 0
+	default 0x0
 	help
 	 MXC I2C4 Slave
 endif
@@ -429,7 +429,7 @@
 
 config SYS_MXC_I2C5_SLAVE
 	hex "I2C5 Slave"
-	default 0
+	default 0x0
 	help
 	 MXC I2C5 Slave
 endif
@@ -443,7 +443,7 @@
 
 config SYS_MXC_I2C6_SLAVE
 	hex "I2C6 Slave"
-	default 0
+	default 0x0
 	help
 	 MXC I2C6 Slave
 endif
@@ -457,7 +457,7 @@
 
 config SYS_MXC_I2C7_SLAVE
 	hex "I2C7 Slave"
-	default 0
+	default 0x0
 	help
 	 MXC I2C7 Slave
 endif
@@ -471,7 +471,7 @@
 
 config SYS_MXC_I2C8_SLAVE
 	hex "I2C8 Slave"
-	default 0
+	default 0x0
 	help
 	 MXC I2C8 Slave
 endif
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index b9f5c7a..a6e3f62 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -555,7 +555,7 @@
 config SYS_I2C_EEPROM_ADDR
 	hex "Chip address of the EEPROM device"
 	depends on ID_EEPROM || I2C_EEPROM || SPL_I2C_EEPROM || CMD_EEPROM || ENV_IS_IN_EEPROM
-	default 0
+	default 0x0
 
 if I2C_EEPROM
 
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index a1e0899..7ca42df 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -482,8 +482,8 @@
 config DEBUG_UART_BASE
 	hex "Base address of UART"
 	depends on DEBUG_UART
-	default 0 if DEBUG_SBI_CONSOLE
-	default 0 if DEBUG_UART_SANDBOX
+	default 0x0 if DEBUG_SBI_CONSOLE
+	default 0x0 if DEBUG_UART_SANDBOX
 	default 0xff000000 if DEBUG_UART_ZYNQ && ARCH_ZYNQMP
 	default 0xe0000000 if DEBUG_UART_ZYNQ && ARCH_ZYNQ
 	help
@@ -1139,6 +1139,6 @@
 config SYS_SDMR
 	hex "SDMR Value"
 	depends on MPC8XX_CONS
-	default 0
+	default 0x0
 
 endif
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 1cfe602..4eccc5e 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -160,7 +160,7 @@
 
 config SDP_LOADADDR
 	hex "Default load address at SDP_WRITE and SDP_JUMP"
-	default 0
+	default 0x0
 
 # Selected by UDC drivers that support high-speed operation.
 config USB_GADGET_DUALSPEED
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index e32ce13..fe43fbd 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -66,7 +66,7 @@
 	hex "Default framebuffer size to use if no drivers request it"
 	default 0x1000000 if X86
 	default 0x800000 if !X86 && VIDEO_BOCHS
-	default 0 if !X86 && !VIDEO_BOCHS
+	default 0x0 if !X86 && !VIDEO_BOCHS
 	help
 	  Generally, video drivers request the amount of memory they need for
 	  the frame buffer when they are bound, by setting the size field in
@@ -1039,7 +1039,7 @@
 	hex "Default framebuffer size to use if no drivers request it at SPL"
 	default 0x1000000 if X86
 	default 0x800000 if !X86 && VIDEO_BOCHS
-	default 0 if !X86 && !VIDEO_BOCHS
+	default 0x0 if !X86 && !VIDEO_BOCHS
 	help
 	  Generally, video drivers request the amount of memory they need for
 	  the frame buffer when they are bound, by setting the size field in
diff --git a/env/Kconfig b/env/Kconfig
index 13e3210..54203fa 100644
--- a/env/Kconfig
+++ b/env/Kconfig
@@ -571,7 +571,7 @@
 	default 0xE0000 if ARCH_ZYNQ
 	default 0x1E00000 if ARCH_ZYNQMP
 	default 0x7F40000 if ARCH_VERSAL || ARCH_VERSAL_NET
-	default 0 if ARC
+	default 0x0 if ARC
 	default 0x140000 if ARCH_AT91
 	default 0x260000 if ARCH_OMAP2PLUS
 	default 0x1080000 if MICROBLAZE && ENV_IS_IN_SPI_FLASH
@@ -583,7 +583,7 @@
 	depends on (ENV_IS_IN_EEPROM || ENV_IS_IN_MMC || ENV_IS_IN_NAND || \
 		    ENV_IS_IN_SPI_FLASH) && SYS_REDUNDAND_ENVIRONMENT
 	default 0x10C0000 if MICROBLAZE
-	default 0
+	default 0x0
 	help
 	  Offset from the start of the device (or partition) of the redundant
 	  environment location.
diff --git a/lib/Kconfig b/lib/Kconfig
index 07e61de..42e559a 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -862,7 +862,7 @@
 config OF_LIBFDT_ASSUME_MASK
 	hex "Mask of conditions to assume for libfdt"
 	depends on OF_LIBFDT || FIT
-	default 0
+	default 0x0
 	help
 	  Use this to change the assumptions made by libfdt about the
 	  device tree it is working with. A value of 0 means that no assumptions