From 12a4d05b9e35f2fd468b1667253ade1cddca415d Mon Sep 17 00:00:00 2001 From: Angel Pons Date: Tue, 14 Jul 2020 01:31:27 +0200 Subject: 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/43432 Reviewed-by: Nico Huber Reviewed-by: Patrick Rudolph Tested-by: build bot (Jenkins) --- src/soc/intel/xeon_sp/skx/acpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/soc/intel/xeon_sp') 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; -- cgit v1.2.3