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>

8 files changed, 4 insertions, 16 deletions

diff --git a/src/southbridge/intel/bd82x6x/fadt.c b/src/southbridge/intel/bd82x6x/fadt.c
index e76682d1cb..b0d719f54d 100644
--- a/src/southbridge/intel/bd82x6x/fadt.c
+++ b/src/southbridge/intel/bd82x6x/fadt.c
@@ -25,8 +25,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->pm_tmr_len = 4;
 	fadt->gpe0_blk_len = 16;
 
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
 	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
 
 	fadt->flags |= ACPI_FADT_WBINVD |
diff --git a/src/southbridge/intel/i82371eb/fadt.c b/src/southbridge/intel/i82371eb/fadt.c
index 00e204ebef..43e119b746 100644
--- a/src/southbridge/intel/i82371eb/fadt.c
+++ b/src/southbridge/intel/i82371eb/fadt.c
@@ -31,8 +31,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 
 	fadt->duty_offset = 1; /* bit 1:3 in PCNTRL reg (pmbase+0x10) */
 	fadt->duty_width = 3; /* this width is in bits */
-	fadt->day_alrm = 0x0d; /* rtc CMOS RAM offset */
-	fadt->mon_alrm = 0x0; /* not supported */
+
 	/*
 	 * bit  meaning
 	 * 0    1: We have user-visible legacy devices
diff --git a/src/southbridge/intel/i82801dx/fadt.c b/src/southbridge/intel/i82801dx/fadt.c
index e5ad336709..56c3cc7fdb 100644
--- a/src/southbridge/intel/i82801dx/fadt.c
+++ b/src/southbridge/intel/i82801dx/fadt.c
@@ -19,8 +19,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->pm_tmr_len = 4;
 	fadt->gpe0_blk_len = 8;
 
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
 	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
 
 	fadt->flags |= ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | ACPI_FADT_SLEEP_BUTTON |
diff --git a/src/southbridge/intel/i82801gx/fadt.c b/src/southbridge/intel/i82801gx/fadt.c
index ccbc504f20..0da488db07 100644
--- a/src/southbridge/intel/i82801gx/fadt.c
+++ b/src/southbridge/intel/i82801gx/fadt.c
@@ -33,8 +33,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 		fadt->duty_width = 3;
 	else
 		fadt->duty_width = 0;
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
+
 	fadt->iapc_boot_arch = ACPI_FADT_8042 | ACPI_FADT_LEGACY_DEVICES;
 	fadt->flags |= (ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED
 		       | ACPI_FADT_SLEEP_BUTTON | ACPI_FADT_S4_RTC_WAKE
diff --git a/src/southbridge/intel/i82801ix/fadt.c b/src/southbridge/intel/i82801ix/fadt.c
index bcd7d900a0..ee861fd0ec 100644
--- a/src/southbridge/intel/i82801ix/fadt.c
+++ b/src/southbridge/intel/i82801ix/fadt.c
@@ -26,8 +26,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->p_lvl3_lat = 0x39;
 	fadt->duty_offset = 1;
 	fadt->duty_width = 3;
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
+
 	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_FREE;
 	fadt->flags |= ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED |
 			ACPI_FADT_SLEEP_BUTTON | ACPI_FADT_S4_RTC_WAKE |
diff --git a/src/southbridge/intel/i82801jx/fadt.c b/src/southbridge/intel/i82801jx/fadt.c
index 73d7ea017c..ca5dfebbd9 100644
--- a/src/southbridge/intel/i82801jx/fadt.c
+++ b/src/southbridge/intel/i82801jx/fadt.c
@@ -26,8 +26,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->p_lvl3_lat = 0;	/* FIXME: Is this correct? */
 	fadt->duty_offset = 1;
 	fadt->duty_width = 0;
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
+
 	fadt->iapc_boot_arch = ACPI_FADT_8042 | ACPI_FADT_LEGACY_DEVICES;
 	fadt->flags |= (ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED
 		       | ACPI_FADT_SLEEP_BUTTON | ACPI_FADT_S4_RTC_WAKE
diff --git a/src/southbridge/intel/ibexpeak/fadt.c b/src/southbridge/intel/ibexpeak/fadt.c
index d750890c54..44ee59a06f 100644
--- a/src/southbridge/intel/ibexpeak/fadt.c
+++ b/src/southbridge/intel/ibexpeak/fadt.c
@@ -25,8 +25,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->pm_tmr_len = 4;
 	fadt->gpe0_blk_len = 16;
 
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
 	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
 
 	fadt->flags |= ACPI_FADT_WBINVD |
diff --git a/src/southbridge/intel/lynxpoint/fadt.c b/src/southbridge/intel/lynxpoint/fadt.c
index eaea091257..d83c58fa29 100644
--- a/src/southbridge/intel/lynxpoint/fadt.c
+++ b/src/southbridge/intel/lynxpoint/fadt.c
@@ -37,8 +37,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	else
 		fadt->gpe0_blk_len = 2 * 8;
 
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
 	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
 
 	fadt->flags |= ACPI_FADT_WBINVD |