diff --git a/src/soc/intel/baytrail/fadt.c b/src/soc/intel/baytrail/fadt.c
index c68d1b7a80..92e6e64422 100644
--- a/src/soc/intel/baytrail/fadt.c
+++ b/src/soc/intel/baytrail/fadt.c
@@ -47,7 +47,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = 1;
 	fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = pmbase + PM1_STS;
 	fadt->x_pm1a_evt_blk.addrh = 0x0;
 
diff --git a/src/soc/intel/braswell/fadt.c b/src/soc/intel/braswell/fadt.c
index c68d1b7a80..92e6e64422 100644
--- a/src/soc/intel/braswell/fadt.c
+++ b/src/soc/intel/braswell/fadt.c
@@ -47,7 +47,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = 1;
 	fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = pmbase + PM1_STS;
 	fadt->x_pm1a_evt_blk.addrh = 0x0;
 
diff --git a/src/soc/intel/broadwell/fadt.c b/src/soc/intel/broadwell/fadt.c
index ddefe3da9e..0deeab54bd 100644
--- a/src/soc/intel/broadwell/fadt.c
+++ b/src/soc/intel/broadwell/fadt.c
@@ -46,7 +46,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = 1;
 	fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = pmbase + PM1_STS;
 	fadt->x_pm1a_evt_blk.addrh = 0x0;
 
diff --git a/src/soc/intel/common/block/acpi/acpi.c b/src/soc/intel/common/block/acpi/acpi.c
index 7a4e496926..7eb5950e58 100644
--- a/src/soc/intel/common/block/acpi/acpi.c
+++ b/src/soc/intel/common/block/acpi/acpi.c
@@ -125,7 +125,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = 1;
 	fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;
 	fadt->x_pm1a_evt_blk.addrl = pmbase + PM1_STS;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 
 	fadt->x_pm1a_cnt_blk.space_id = 1;
 	fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8;
diff --git a/src/soc/intel/denverton_ns/acpi.c b/src/soc/intel/denverton_ns/acpi.c
index 1d719ebe51..944e8eb7c3 100644
--- a/src/soc/intel/denverton_ns/acpi.c
+++ b/src/soc/intel/denverton_ns/acpi.c
@@ -147,7 +147,7 @@ void soc_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_pm1a_evt_blk.bit_width = 32;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = fadt->pm1a_evt_blk;
 	fadt->x_pm1a_evt_blk.addrh = 0x00;
 
diff --git a/src/soc/intel/skylake/fadt.c b/src/soc/intel/skylake/fadt.c
index 416532e9a7..c6c2029254 100644
--- a/src/soc/intel/skylake/fadt.c
+++ b/src/soc/intel/skylake/fadt.c
@@ -55,7 +55,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = 1;
 	fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = pmbase + PM1_STS;
 	fadt->x_pm1a_evt_blk.addrh = 0x0;
 
diff --git a/src/soc/intel/xeon_sp/skx/acpi.c b/src/soc/intel/xeon_sp/skx/acpi.c
index 3cd6ffbffe..d984d9f5e8 100644
--- a/src/soc/intel/xeon_sp/skx/acpi.c
+++ b/src/soc/intel/xeon_sp/skx/acpi.c
@@ -270,7 +270,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_pm1a_evt_blk.bit_width = 32;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = fadt->pm1a_evt_blk;
 	fadt->x_pm1a_evt_blk.addrh = 0x00;
 
diff --git a/src/southbridge/intel/bd82x6x/fadt.c b/src/southbridge/intel/bd82x6x/fadt.c
index 8f6c379913..ffd7db3f03 100644
--- a/src/southbridge/intel/bd82x6x/fadt.c
+++ b/src/southbridge/intel/bd82x6x/fadt.c
@@ -63,7 +63,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_pm1a_evt_blk.bit_width = 32;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = pmbase;
 	fadt->x_pm1a_evt_blk.addrh = 0x0;
 
diff --git a/src/southbridge/intel/i82371eb/fadt.c b/src/southbridge/intel/i82371eb/fadt.c
index 05581f43b2..c302accb04 100644
--- a/src/southbridge/intel/i82371eb/fadt.c
+++ b/src/southbridge/intel/i82371eb/fadt.c
@@ -106,7 +106,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = 1;
 	fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = fadt->pm1a_evt_blk;
 	fadt->x_pm1a_evt_blk.addrh = 0x0;
 
diff --git a/src/southbridge/intel/i82801gx/fadt.c b/src/southbridge/intel/i82801gx/fadt.c
index 602f0fe6a9..3be40b93a4 100644
--- a/src/southbridge/intel/i82801gx/fadt.c
+++ b/src/southbridge/intel/i82801gx/fadt.c
@@ -56,7 +56,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_pm1a_evt_blk.bit_width = 32;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = pmbase;
 	fadt->x_pm1a_evt_blk.addrh = 0x0;
 
diff --git a/src/southbridge/intel/i82801ix/fadt.c b/src/southbridge/intel/i82801ix/fadt.c
index 3e9ee74025..b7da216908 100644
--- a/src/southbridge/intel/i82801ix/fadt.c
+++ b/src/southbridge/intel/i82801ix/fadt.c
@@ -47,7 +47,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_pm1a_evt_blk.bit_width = 32;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = pmbase;
 	fadt->x_pm1a_evt_blk.addrh = 0x0;
 
diff --git a/src/southbridge/intel/i82801jx/fadt.c b/src/southbridge/intel/i82801jx/fadt.c
index bbb82cc1d4..f2b408b119 100644
--- a/src/southbridge/intel/i82801jx/fadt.c
+++ b/src/southbridge/intel/i82801jx/fadt.c
@@ -52,7 +52,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_pm1a_evt_blk.bit_width = 32;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = pmbase;
 	fadt->x_pm1a_evt_blk.addrh = 0x0;
 
diff --git a/src/southbridge/intel/ibexpeak/fadt.c b/src/southbridge/intel/ibexpeak/fadt.c
index 302e870490..a0dcee8931 100644
--- a/src/southbridge/intel/ibexpeak/fadt.c
+++ b/src/southbridge/intel/ibexpeak/fadt.c
@@ -62,7 +62,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_pm1a_evt_blk.bit_width = 32;
 	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
 	fadt->x_pm1a_evt_blk.addrl = pmbase;
 	fadt->x_pm1a_evt_blk.addrh = 0x0;