diff options
| author | Angel Pons <th3fanbus@gmail.com> | 2020-07-12 19:45:29 +0200 |
|---|---|---|
| committer | Angel Pons <th3fanbus@gmail.com> | 2020-07-20 13:15:45 +0000 |
| commit | 77653e3bceda70093a6a690097f99b71bafd7f03 (patch) | |
| tree | b01e1f03a46401adbc6630fd81daffa17fc499f1 /src/southbridge/intel/lynxpoint | |
| parent | 24a61841e312773d6be2be6bca955fff9272ed81 (diff) | |
src: Drop useless GPE1 settings from FADT
None of the currently-supported chips has a GPE1 block. The ACPI spec,
version 6.3, section 4.8.1.6 (General-Purpose Event Registers) says:
If a generic register block is not supported then its respective
block pointer and block length values in the FADT table contain zeros.
Since the FADT struct defaults to zero in coreboot, we don't need to do
anything with GPE1 for now. So, drop the unneeded writes to GPE1 fields.
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: Iefc4bbc6e16fac12e0a9324d5a50b20aad59a6cd
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43379
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Michael Niewöhner
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/southbridge/intel/lynxpoint')
| -rw-r--r-- | src/southbridge/intel/lynxpoint/fadt.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/src/southbridge/intel/lynxpoint/fadt.c b/src/southbridge/intel/lynxpoint/fadt.c index 74b07adf30..995532c7eb 100644 --- a/src/southbridge/intel/lynxpoint/fadt.c +++ b/src/southbridge/intel/lynxpoint/fadt.c @@ -30,7 +30,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt) fadt->gpe0_blk = pmbase + LP_GPE0_STS_1; else fadt->gpe0_blk = pmbase + GPE0_STS; - fadt->gpe1_blk = 0; /* * Some of the lengths here are doubled. This is because they describe @@ -46,8 +45,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt) fadt->gpe0_blk_len = 2 * 16; else fadt->gpe0_blk_len = 2 * 8; - fadt->gpe1_blk_len = 0; - fadt->gpe1_base = 0; fadt->p_lvl2_lat = 1; fadt->p_lvl3_lat = 87; @@ -135,11 +132,4 @@ void acpi_fill_fadt(acpi_fadt_t *fadt) fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; fadt->x_gpe0_blk.addrl = fadt->gpe0_blk; fadt->x_gpe0_blk.addrh = 0x0; - - fadt->x_gpe1_blk.space_id = ACPI_ADDRESS_SPACE_IO; - fadt->x_gpe1_blk.bit_width = 0; - fadt->x_gpe1_blk.bit_offset = 0; - fadt->x_gpe1_blk.access_size = 0; - fadt->x_gpe1_blk.addrl = 0x0; - fadt->x_gpe1_blk.addrh = 0x0; } |