src: Report byte-sized access for GPE0

According to the ACPI specification, version 6.3:

    OSPM accesses GPE registers through byte
    accesses (regardless of their length).

So, reporting dword-sized access is wrong and means nothing anyway.

Tested on Asus P8Z77-V LX2, Windows 10 still boots.

Change-Id: I965131a28f1a385d065c95f286549665c3f9693e
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42671
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

9 files changed, 10 insertions, 10 deletions

diff --git a/src/soc/amd/picasso/acpi.c b/src/soc/amd/picasso/acpi.c
index 7704c30a27..c868c3458a 100644
--- a/src/soc/amd/picasso/acpi.c
+++ b/src/soc/amd/picasso/acpi.c
@@ -206,7 +206,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + Event Enable */
 	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_gpe0_blk.addrl = ACPI_GPE0_BLK;
 	fadt->x_gpe0_blk.addrh = 0x0;
 
diff --git a/src/soc/amd/stoneyridge/acpi.c b/src/soc/amd/stoneyridge/acpi.c
index ea67aa3ef8..ffead50435 100644
--- a/src/soc/amd/stoneyridge/acpi.c
+++ b/src/soc/amd/stoneyridge/acpi.c
@@ -178,7 +178,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + Event Enable */
 	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_gpe0_blk.addrl = ACPI_GPE0_BLK;
 	fadt->x_gpe0_blk.addrh = 0x0;
 
diff --git a/src/soc/intel/broadwell/acpi.c b/src/soc/intel/broadwell/acpi.c
index 0d83c01882..43ff8eb4ad 100644
--- a/src/soc/intel/broadwell/acpi.c
+++ b/src/soc/intel/broadwell/acpi.c
@@ -283,7 +283,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8;
 	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
 	fadt->x_gpe0_blk.addrh = 0;
 
diff --git a/src/soc/intel/common/block/acpi/acpi.c b/src/soc/intel/common/block/acpi/acpi.c
index c497399ba2..3265131f93 100644
--- a/src/soc/intel/common/block/acpi/acpi.c
+++ b/src/soc/intel/common/block/acpi/acpi.c
@@ -157,7 +157,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8;
 	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
 	fadt->x_gpe0_blk.addrh = 0;
 
diff --git a/src/soc/intel/denverton_ns/acpi.c b/src/soc/intel/denverton_ns/acpi.c
index 014625caa6..3f416b6cd9 100644
--- a/src/soc/intel/denverton_ns/acpi.c
+++ b/src/soc/intel/denverton_ns/acpi.c
@@ -206,7 +206,7 @@ void soc_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + EventEnable */
 	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
 	fadt->x_gpe0_blk.addrh = 0x00;
 
diff --git a/src/soc/intel/quark/acpi.c b/src/soc/intel/quark/acpi.c
index bf173d9972..628ef3afe3 100644
--- a/src/soc/intel/quark/acpi.c
+++ b/src/soc/intel/quark/acpi.c
@@ -78,7 +78,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8;
 	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
 	fadt->x_gpe0_blk.addrh = 0;
 
diff --git a/src/soc/intel/skylake/acpi.c b/src/soc/intel/skylake/acpi.c
index 414a14f4e0..6fde1e2df7 100644
--- a/src/soc/intel/skylake/acpi.c
+++ b/src/soc/intel/skylake/acpi.c
@@ -330,7 +330,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8;
 	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
 	fadt->x_gpe0_blk.addrh = 0;
 
diff --git a/src/soc/intel/xeon_sp/cpx/acpi.c b/src/soc/intel/xeon_sp/cpx/acpi.c
index 026185714e..e52d75d119 100644
--- a/src/soc/intel/xeon_sp/cpx/acpi.c
+++ b/src/soc/intel/xeon_sp/cpx/acpi.c
@@ -332,7 +332,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + EventEnable */
 	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
 	fadt->x_gpe0_blk.addrh = 0;
 
diff --git a/src/soc/intel/xeon_sp/skx/acpi.c b/src/soc/intel/xeon_sp/skx/acpi.c
index 17da9a929f..606bfedd1d 100644
--- a/src/soc/intel/xeon_sp/skx/acpi.c
+++ b/src/soc/intel/xeon_sp/skx/acpi.c
@@ -313,7 +313,7 @@ void soc_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + EventEnable */
 	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
 	fadt->x_gpe0_blk.addrh = 0x00;
 
@@ -428,7 +428,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8;
 	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
 	fadt->x_gpe0_blk.addrh = 0;