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authorAngel Pons <th3fanbus@gmail.com>2020-07-14 01:31:27 +0200
committerAngel Pons <th3fanbus@gmail.com>2020-07-20 13:33:32 +0000
commit12a4d05b9e35f2fd468b1667253ade1cddca415d (patch)
treeb84131e1ba16872779609d4664b46015043f88cd /src/soc/intel/common/block
parent94b0c791a01d553ebac0abfc6c1db1366b2408de (diff)
src: Report word-sized access for PM1a_EVT
According to the ACPI specification, version 6.3: Accesses to the PM1 status registers are done through byte or word accesses. The same is said about the PM1 Enable registers. Therefore, reporting dword-sized access is wrong and means nothing anyway. Since some other platforms use word-sized access, use word everywhere for consistency. Tested on Asus P8Z77-V LX2 with Linux 5.7.6 and Windows 10 at the end of the patch train, both operating systems are able to boot successfully. Change-Id: I6f85c9a4126f37ab2a193c3ab50a6c8e62cf6515 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43432 Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/common/block')
-rw-r--r--src/soc/intel/common/block/acpi/acpi.c2
1 files changed, 1 insertions, 1 deletions
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;