diff --git a/src/mainboard/google/hatch/variants/akemi/variant.c b/src/mainboard/google/hatch/variants/akemi/variant.c
index 00649c221e..cc38362f62 100644
--- a/src/mainboard/google/hatch/variants/akemi/variant.c
+++ b/src/mainboard/google/hatch/variants/akemi/variant.c
@@ -29,7 +29,6 @@ void variant_devtree_update(void)
 			return;
 		ssd_host->enabled = 0;
 		cfg->SataSalpSupport = 0;
-		cfg->SataMode = 0;
 		cfg->SataPortsEnable[1] = 0;
 		cfg->SataPortsDevSlp[1] = 0;
 		cfg->satapwroptimize = 0;
diff --git a/src/mainboard/google/hatch/variants/kindred/variant.c b/src/mainboard/google/hatch/variants/kindred/variant.c
index 3510dbb68e..7e63526562 100644
--- a/src/mainboard/google/hatch/variants/kindred/variant.c
+++ b/src/mainboard/google/hatch/variants/kindred/variant.c
@@ -30,7 +30,6 @@ void variant_devtree_update(void)
 			return;
 		ssd_host->enabled = 0;
 		cfg->SataSalpSupport = 0;
-		cfg->SataMode = 0;
 		cfg->SataPortsEnable[1] = 0;
 		cfg->SataPortsDevSlp[1] = 0;
 		cfg->satapwroptimize = 0;
diff --git a/src/mainboard/prodrive/hermes/devicetree.cb b/src/mainboard/prodrive/hermes/devicetree.cb
index e0655c5630..db573821cf 100644
--- a/src/mainboard/prodrive/hermes/devicetree.cb
+++ b/src/mainboard/prodrive/hermes/devicetree.cb
@@ -1,7 +1,6 @@
 chip soc/intel/cannonlake
 	# FSP configuration
 
-	register "SataMode" = "0"		# AHCI
 	register "SataSalpSupport" = "0"
 	register "satapwroptimize" = "1"
 	register "SataPortsDevSlp[1]" = "1"	# PCH_M2_SATA_DEVSLP1
diff --git a/src/mainboard/purism/librem_cnl/variants/librem_14/devicetree.cb b/src/mainboard/purism/librem_cnl/variants/librem_14/devicetree.cb
index c8d6816958..8b5c9086b9 100644
--- a/src/mainboard/purism/librem_cnl/variants/librem_14/devicetree.cb
+++ b/src/mainboard/purism/librem_cnl/variants/librem_14/devicetree.cb
@@ -199,7 +199,6 @@ chip soc/intel/cannonlake
 		device pci 16.4 off end # Management Engine Interface 3
 		device pci 16.5 off end # Management Engine Interface 4
 		device pci 17.0 on	# SATA
-			register "SataMode" = "SATA_AHCI"
 			register "satapwroptimize" = "1"
 			register "SataSalpSupport" = "1"
 			# Port 2 (M.2 / inner)