diff --git a/arch/x86/platforms/galileo/Kconfig b/arch/x86/platforms/galileo/Kconfig
index 58ee30e7f20..fd363e0d446 100644
--- a/arch/x86/platforms/galileo/Kconfig
+++ b/arch/x86/platforms/galileo/Kconfig
@@ -324,9 +324,9 @@ config ADC_TI_ADC108S102_0
 config ADC_TI_ADC108S102_0_SPI_PORT_NAME
 	default "SPI0"
 config ADC_TI_ADC108S102_0_SPI_CONFIGURATION
-	default 0x103
+	default 0x81
 config ADC_TI_ADC108S102_0_SPI_MAX_FREQ
-	default 2147483650
+	default 0x20000000
 endif
 
 if ETH_DW
diff --git a/drivers/adc/Kconfig b/drivers/adc/Kconfig
index 68126ebbf74..8a6424106ae 100644
--- a/drivers/adc/Kconfig
+++ b/drivers/adc/Kconfig
@@ -68,9 +68,9 @@ config  ADC_TI_ADC108S102_0_SPI_CONFIGURATION
 	Master SPI port configuration flags used to access adc108s102 chip.
 
 config  ADC_TI_ADC108S102_0_SPI_MAX_FREQ
-	int "Master SPI port max frequency"
+	hex "Master SPI port max frequency"
 	depends on ADC_TI_ADC108S102_0
-	default 0
+	default 0x0
 	help
 	Master SPI port maximum frequency used to access adc108s102 chip.