diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index 8411e76..b81bfdd 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -106,12 +106,6 @@
 	 Intel Raptorlake support. Mainboards using RPL should select
 	 SOC_INTEL_RAPTORLAKE and SOC_INTEL_ALDERLAKE_PCH_* together.
 
-config SOC_INTEL_ALDERLAKE_PCH_M
-	bool
-	select SOC_INTEL_ALDERLAKE
-	help
-	  Choose this option if your mainboard has a PCH-M chipset.
-
 config SOC_INTEL_ALDERLAKE_PCH_N
 	bool
 	select HAVE_INTEL_FSP_REPO
@@ -244,21 +238,18 @@
 
 config MAX_PCH_ROOT_PORTS
 	int
-	default 10 if SOC_INTEL_ALDERLAKE_PCH_M
 	default 12 if SOC_INTEL_ALDERLAKE_PCH_N
 	default 12 if SOC_INTEL_ALDERLAKE_PCH_P
 	default 28 if SOC_INTEL_ALDERLAKE_PCH_S
 
 config MAX_CPU_ROOT_PORTS
 	int
-	default 1 if SOC_INTEL_ALDERLAKE_PCH_M
 	default 0 if SOC_INTEL_ALDERLAKE_PCH_N
 	default 3 if SOC_INTEL_ALDERLAKE_PCH_P || SOC_INTEL_ALDERLAKE_PCH_S
 
 config MAX_TBT_ROOT_PORTS
 	int
 	default 0 if SOC_INTEL_ALDERLAKE_PCH_N || SOC_INTEL_ALDERLAKE_PCH_S
-	default 2 if SOC_INTEL_ALDERLAKE_PCH_M
 	default 4 if SOC_INTEL_ALDERLAKE_PCH_P
 
 config MAX_ROOT_PORTS
@@ -267,7 +258,6 @@
 
 config MAX_PCIE_CLOCK_SRC
 	int
-	default 6 if SOC_INTEL_ALDERLAKE_PCH_M
 	default 5 if SOC_INTEL_ALDERLAKE_PCH_N
 	default 10 if SOC_INTEL_ALDERLAKE_PCH_P
 	default 18 if SOC_INTEL_ALDERLAKE_PCH_S
@@ -279,7 +269,6 @@
 
 config MAX_PCIE_CLOCK_REQ
 	int
-	default 6  if SOC_INTEL_ALDERLAKE_PCH_M
 	default 5  if SOC_INTEL_ALDERLAKE_PCH_N
 	default 10 if SOC_INTEL_ALDERLAKE_PCH_P
 	default 18 if SOC_INTEL_ALDERLAKE_PCH_S
diff --git a/src/soc/intel/alderlake/acpi/pcie.asl b/src/soc/intel/alderlake/acpi/pcie.asl
index 2155228..414ced2 100644
--- a/src/soc/intel/alderlake/acpi/pcie.asl
+++ b/src/soc/intel/alderlake/acpi/pcie.asl
@@ -305,7 +305,7 @@
 #endif
 
 
-#if CONFIG(SOC_INTEL_ALDERLAKE_PCH_M) || CONFIG(SOC_INTEL_ALDERLAKE_PCH_P)
+#if CONFIG(SOC_INTEL_ALDERLAKE_PCH_P)
 Device (PEG0)
 {
 	Name (_ADR, 0x00060000)
diff --git a/src/soc/intel/alderlake/fsp_params.c b/src/soc/intel/alderlake/fsp_params.c
index d9c0f8e..b432030 100644
--- a/src/soc/intel/alderlake/fsp_params.c
+++ b/src/soc/intel/alderlake/fsp_params.c
@@ -680,9 +680,7 @@
 			s_cfg->UsbTcPortEn |= BIT(i);
 	}
 
-#if !CONFIG(SOC_INTEL_ALDERLAKE_PCH_M)
 	s_cfg->Usb4CmMode = CONFIG(SOFTWARE_CONNECTION_MANAGER);
-#endif
 }
 
 static void fill_fsps_chipset_lockdown_params(FSP_S_CONFIG *s_cfg,
diff --git a/src/soc/intel/alderlake/include/soc/bootblock.h b/src/soc/intel/alderlake/include/soc/bootblock.h
index 41f99e1..11eab63 100644
--- a/src/soc/intel/alderlake/include/soc/bootblock.h
+++ b/src/soc/intel/alderlake/include/soc/bootblock.h
@@ -3,8 +3,7 @@
 #ifndef _SOC_ALDERLAKE_BOOTBLOCK_H_
 #define _SOC_ALDERLAKE_BOOTBLOCK_H_
 
-#if	CONFIG(SOC_INTEL_ALDERLAKE_PCH_M) +	\
-	CONFIG(SOC_INTEL_ALDERLAKE_PCH_N) +	\
+#if	CONFIG(SOC_INTEL_ALDERLAKE_PCH_N) +	\
 	CONFIG(SOC_INTEL_ALDERLAKE_PCH_P) +	\
 	CONFIG(SOC_INTEL_ALDERLAKE_PCH_S) != 1
 #error "Please select exactly one PCH type"
diff --git a/src/soc/intel/alderlake/pcie_rp.c b/src/soc/intel/alderlake/pcie_rp.c
index 6bbe298..7b1893a 100644
--- a/src/soc/intel/alderlake/pcie_rp.c
+++ b/src/soc/intel/alderlake/pcie_rp.c
@@ -14,12 +14,6 @@
 	{ 0 }
 };
 
-static const struct pcie_rp_group pch_m_rp_groups[] = {
-	{ .slot = PCH_DEV_SLOT_PCIE,	.count = 8, .lcap_port_base = 1 },
-	{ .slot = PCH_DEV_SLOT_PCIE_1,	.count = 2, .lcap_port_base = 1 },
-	{ 0 }
-};
-
 static const struct pcie_rp_group pch_s_rp_groups[] = {
 	{ .slot = PCH_DEV_SLOT_PCIE,	.count = 8, .lcap_port_base = 1 },
 	{ .slot = PCH_DEV_SLOT_PCIE_1,	.count = 8, .lcap_port_base = 1 },
@@ -30,9 +24,6 @@
 
 const struct pcie_rp_group *get_pch_pcie_rp_table(void)
 {
-	if (CONFIG(SOC_INTEL_ALDERLAKE_PCH_M))
-		return pch_m_rp_groups;
-
 	if (CONFIG(SOC_INTEL_ALDERLAKE_PCH_S))
 		return pch_s_rp_groups;
 
@@ -52,11 +43,6 @@
 	{ 0 }
 };
 
-static const struct pcie_rp_group cpu_m_rp_groups[] = {
-	{ .slot = SA_DEV_SLOT_CPU_6, .start = 0, .count = 1, .lcap_port_base = 1 },
-	{ 0 }
-};
-
 static const struct pcie_rp_group cpu_n_rp_groups[] = {
 	{ 0 }
 };
@@ -69,9 +55,6 @@
 
 const struct pcie_rp_group *get_cpu_pcie_rp_table(void)
 {
-	if (CONFIG(SOC_INTEL_ALDERLAKE_PCH_M))
-		return cpu_m_rp_groups;
-
 	if (CONFIG(SOC_INTEL_ALDERLAKE_PCH_N))
 		return cpu_n_rp_groups;