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soc/amd/cezanne: Update FADT to support S0i3 

Set ACPI_FADT_LOW_PWR_IDLE_S0 flag in FADT.

BUG=b:178728116
TEST=Dump FACP and confirm Flags bits match expected.

Change-Id: I59ef762a18903135f9daa902ba8d1e40c451e96c
Signed-off-by: Jason Glenesk <jason.glenesk@amd.corp-partner.google.com>
Signed-off-by: Mathew King <mathewk@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52035
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Jason Glenesk 2021-03-10 02:47:05 -08:00 committed by Patrick Georgi
parent 23cc165d6a
commit fff318fbce
1 changed files with 6 additions and 3 deletions
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9
src/soc/amd/cezanne/acpi.c
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@ -56,7 +56,7 @@ unsigned long acpi_fill_madt(unsigned long current)
*/
void acpi_fill_fadt(acpi_fadt_t *fadt)
{
const struct soc_amd_common_config *cfg = soc_get_common_config();
const struct soc_amd_cezanne_config *cfg = config_of_soc();
printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
@ -87,7 +87,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
fadt->day_alrm = RTC_DATE_ALARM;
fadt->mon_alrm = 0;
fadt->century = RTC_ALT_CENTURY;
fadt->iapc_boot_arch = cfg->fadt_boot_arch; /* legacy free default */
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 |
ACPI_FADT_S4_RTC_WAKE |
@ -96,7 +96,10 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
ACPI_FADT_PLATFORM_CLOCK |
ACPI_FADT_S4_RTC_VALID |
ACPI_FADT_REMOTE_POWER_ON;
fadt->flags |= cfg->fadt_flags; /* additional board-specific flags */
if (cfg->s0ix_enable)
fadt->flags |= ACPI_FADT_LOW_PWR_IDLE_S0;
fadt->flags |= cfg->common_config.fadt_flags; /* additional board-specific flags */
fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
fadt->x_pm1a_evt_blk.bit_width = 32;