diff --git a/src/mainboard/clevo/kbl-u/variants/n13xwu/devicetree.cb b/src/mainboard/clevo/kbl-u/variants/n13xwu/devicetree.cb
index f0588da..bb896aa 100644
--- a/src/mainboard/clevo/kbl-u/variants/n13xwu/devicetree.cb
+++ b/src/mainboard/clevo/kbl-u/variants/n13xwu/devicetree.cb
@@ -58,7 +58,6 @@
 		device ref thermal	on	end
 		device ref heci1	on	end
 		device ref sata		on
-			register "SataSalpSupport" = "0"
 			# Ports
 			register "SataPortsEnable[0]" = "1"
 			register "SataPortsEnable[2]" = "1"
diff --git a/src/mainboard/google/eve/devicetree.cb b/src/mainboard/google/eve/devicetree.cb
index 62a5ac2..ec8a289 100644
--- a/src/mainboard/google/eve/devicetree.cb
+++ b/src/mainboard/google/eve/devicetree.cb
@@ -36,7 +36,6 @@
 	register "gen3_dec" = "0x00fc0901"
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable[0]" = "0"
 	register "DspEnable" = "1"
 	register "IoBufferOwnership" = "3"
diff --git a/src/mainboard/google/fizz/variants/baseboard/devicetree.cb b/src/mainboard/google/fizz/variants/baseboard/devicetree.cb
index 3a11a84..d64a9f9 100644
--- a/src/mainboard/google/fizz/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/fizz/variants/baseboard/devicetree.cb
@@ -65,7 +65,6 @@
 	register "s0ix_enable" = true
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable[0]" = "1"
 	register "SataPortsEnable[1]" = "1"
 	register "SataPortsDevSlp[1]" = "1"
diff --git a/src/mainboard/google/glados/devicetree.cb b/src/mainboard/google/glados/devicetree.cb
index 789d49a..995ed13 100644
--- a/src/mainboard/google/glados/devicetree.cb
+++ b/src/mainboard/google/glados/devicetree.cb
@@ -35,7 +35,6 @@
 	register "dptf_enable" = "1"
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable[0]" = "0"
 	register "DspEnable" = "1"
 	register "IoBufferOwnership" = "3"
diff --git a/src/mainboard/google/poppy/variants/atlas/devicetree.cb b/src/mainboard/google/poppy/variants/atlas/devicetree.cb
index e661f3a..7817efd 100644
--- a/src/mainboard/google/poppy/variants/atlas/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/atlas/devicetree.cb
@@ -43,7 +43,6 @@
 	register "CmdTriStateDis" = "1"
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable[0]" = "0"
 	register "DspEnable" = "1"
 	register "IoBufferOwnership" = "3"
diff --git a/src/mainboard/google/poppy/variants/baseboard/devicetree.cb b/src/mainboard/google/poppy/variants/baseboard/devicetree.cb
index 5f8b459..0fc683d 100644
--- a/src/mainboard/google/poppy/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/baseboard/devicetree.cb
@@ -31,7 +31,6 @@
 	register "s0ix_enable" = true
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable[0]" = "0"
 	register "DspEnable" = "1"
 	register "IoBufferOwnership" = "3"
diff --git a/src/mainboard/google/poppy/variants/nami/devicetree.cb b/src/mainboard/google/poppy/variants/nami/devicetree.cb
index ea753bf..2bb5e11 100644
--- a/src/mainboard/google/poppy/variants/nami/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nami/devicetree.cb
@@ -40,7 +40,6 @@
 	register "s0ix_enable" = true
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "DspEnable" = "1"
 	register "IoBufferOwnership" = "3"
 	register "ScsEmmcHs400Enabled" = "1"
diff --git a/src/mainboard/google/poppy/variants/nautilus/devicetree.cb b/src/mainboard/google/poppy/variants/nautilus/devicetree.cb
index aebec9f..02c832c 100644
--- a/src/mainboard/google/poppy/variants/nautilus/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nautilus/devicetree.cb
@@ -40,7 +40,6 @@
 	register "s0ix_enable" = true
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable[0]" = "0"
 	register "DspEnable" = "1"
 	register "IoBufferOwnership" = "3"
diff --git a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
index a5db866..fe6c1cb 100644
--- a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
@@ -36,7 +36,6 @@
 	register "CmdTriStateDis" = "1"
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable[0]" = "0"
 	register "DspEnable" = "1"
 	register "IoBufferOwnership" = "3"
diff --git a/src/mainboard/google/poppy/variants/rammus/devicetree.cb b/src/mainboard/google/poppy/variants/rammus/devicetree.cb
index 786354e..4e291ac 100644
--- a/src/mainboard/google/poppy/variants/rammus/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/rammus/devicetree.cb
@@ -43,7 +43,6 @@
 	register "CmdTriStateDis" = "1"
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable[0]" = "0"
 	register "DspEnable" = "1"
 	register "IoBufferOwnership" = "3"
diff --git a/src/mainboard/google/poppy/variants/soraka/devicetree.cb b/src/mainboard/google/poppy/variants/soraka/devicetree.cb
index d274e15..641c5ca 100644
--- a/src/mainboard/google/poppy/variants/soraka/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/soraka/devicetree.cb
@@ -40,7 +40,6 @@
 	register "s0ix_enable" = true
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable[0]" = "0"
 	register "DspEnable" = "1"
 	register "IoBufferOwnership" = "3"
diff --git a/src/mainboard/libretrend/lt1000/devicetree.cb b/src/mainboard/libretrend/lt1000/devicetree.cb
index 6725a91..2cb674f 100644
--- a/src/mainboard/libretrend/lt1000/devicetree.cb
+++ b/src/mainboard/libretrend/lt1000/devicetree.cb
@@ -33,7 +33,6 @@
 	register "dptf_enable" = "0"
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable" = "{
 		[0] = 1,
 		[1] = 1,
diff --git a/src/mainboard/protectli/vault_kbl/devicetree.cb b/src/mainboard/protectli/vault_kbl/devicetree.cb
index 6ce7aa4..2b3955c 100644
--- a/src/mainboard/protectli/vault_kbl/devicetree.cb
+++ b/src/mainboard/protectli/vault_kbl/devicetree.cb
@@ -28,7 +28,6 @@
 	register "tcc_offset" = "5" # TCC of 95C
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "DspEnable" = "0"
 	register "IoBufferOwnership" = "0"
 	register "SkipExtGfxScan" = "1"
diff --git a/src/mainboard/purism/librem_skl/devicetree.cb b/src/mainboard/purism/librem_skl/devicetree.cb
index be5b6c0..20e204d 100644
--- a/src/mainboard/purism/librem_skl/devicetree.cb
+++ b/src/mainboard/purism/librem_skl/devicetree.cb
@@ -41,7 +41,6 @@
 	register "dptf_enable" = "0"
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable[0]" = "1"
 	register "SataPortsEnable[1]" = "0"
 	register "SataPortsEnable[2]" = "1"
diff --git a/src/mainboard/razer/blade_stealth_kbl/devicetree.cb b/src/mainboard/razer/blade_stealth_kbl/devicetree.cb
index 8694838..34ef384 100644
--- a/src/mainboard/razer/blade_stealth_kbl/devicetree.cb
+++ b/src/mainboard/razer/blade_stealth_kbl/devicetree.cb
@@ -22,7 +22,6 @@
 	register "dptf_enable" = "0"
 
 	# FSP Configuration
-	register "SataSalpSupport" = "0"
 	register "SataPortsEnable" = "{
 		[0] = 0,
 		[1] = 0,
diff --git a/src/mainboard/system76/kbl-u/devicetree.cb b/src/mainboard/system76/kbl-u/devicetree.cb
index d89157c..38578e0 100644
--- a/src/mainboard/system76/kbl-u/devicetree.cb
+++ b/src/mainboard/system76/kbl-u/devicetree.cb
@@ -128,7 +128,6 @@
 		end
 		device ref thermal on end
 		device ref sata on
-			register "SataSalpSupport" = "0"
 			register "SataSpeedLimit" = "2"
 			register "SataPortsEnable" = "{
 				[0] = 1,