ACPI: Make FADT entries for RTC/CMOS architectural

For AMD, replace name RTC_ALT_CENTURY with RTC_CLK_ALTCENTURY
that points to same offset. Since the century field inside
RTC falls within the NVRAM space, and could interfere with
OPTION_TABLE, it is now guarded with config USE_PC_CMOS_ALTCENTURY.

There were no reference for the use of offset 0x48 for century.

Change-Id: I965a83dc8daaa02ad0935bdde5ca50110adb014a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74601
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This commit is contained in:
Kyösti Mälkki
2023-04-17 15:20:40 +03:00
committed by Felix Held
parent 097f540460
commit 240baa31e8
29 changed files with 18 additions and 66 deletions

View File

@@ -52,8 +52,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
fill_fadt_extended_pm_regs(fadt);
fadt->day_alrm = RTC_DATE_ALARM;
fadt->century = RTC_ALT_CENTURY;
fadt->iapc_boot_arch = cfg->common_config.fadt_boot_arch; /* legacy free default */
fadt->flags |= ACPI_FADT_WBINVD | /* See table 5-34 ACPI 6.3 spec */
ACPI_FADT_C1_SUPPORTED |