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soc/amd/picasso: use FADT devicetree configuration options 

Two of the items in the FADT ACPI table frequently are partially board-
specific, so let's make it easy to update them via devicetree settings.

- fadt_boot_arch 0="legacy free" which while reasonable, probably isn't
what will be wanted by most mainboards, so this should generally get
updated in the specific devicetree.
- In fadt_flags all chipset-specific flags get set while the mainboard
has to set all other flags that it needs to have set.

This patch changes the default for fadt_boot_arch.

Change-Id: I6e8d0c60cadfdd24b6926703b252abbc56d436de
Signed-off-by: Martin Roth <martinroth@chromium.org>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43418
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Martin Roth 2019-12-01 16:49:19 -07:00 committed by Felix Held
parent 90341c18a3
commit eca8faa176
1 changed files with 12 additions and 10 deletions
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22
src/soc/amd/picasso/acpi.c
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@ -88,6 +88,8 @@ unsigned long acpi_fill_madt(unsigned long current)
*/
void acpi_fill_fadt(acpi_fadt_t *fadt)
{
const struct soc_amd_picasso_config *cfg = config_of_soc();
printk(BIOS_DEBUG, "pm_base: 0x%04x\n", PICASSO_ACPI_IO_BASE);
fadt->sci_int = 9; /* IRQ 09 - ACPI SCI */
@ -115,17 +117,17 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
fadt->day_alrm = 0x0d;
fadt->mon_alrm = 0;
fadt->century = 0x32;
fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
fadt->iapc_boot_arch = cfg->fadt_boot_arch; /* legacy free default */
fadt->res2 = 0; /* reserved, MUST be 0 ACPI 3.0 */
fadt->flags |= ACPI_FADT_WBINVD | /* See table 5-10 ACPI 3.0a spec */
ACPI_FADT_C1_SUPPORTED |
ACPI_FADT_SLEEP_BUTTON |
ACPI_FADT_S4_RTC_WAKE |
ACPI_FADT_32BIT_TIMER |
ACPI_FADT_PCI_EXPRESS_WAKE |
ACPI_FADT_PLATFORM_CLOCK |
ACPI_FADT_S4_RTC_VALID |
ACPI_FADT_REMOTE_POWER_ON;
fadt->flags |= ACPI_FADT_WBINVD | /* See table 5-34 ACPI 6.3 spec */
ACPI_FADT_C1_SUPPORTED |
ACPI_FADT_S4_RTC_WAKE |
ACPI_FADT_32BIT_TIMER |
ACPI_FADT_PCI_EXPRESS_WAKE |
ACPI_FADT_PLATFORM_CLOCK |
ACPI_FADT_S4_RTC_VALID |
ACPI_FADT_REMOTE_POWER_ON;
fadt->flags |= cfg->fadt_flags; /* additional board-specific flags */
fadt->ARM_boot_arch = 0; /* MUST be 0 ACPI 3.0 */
fadt->FADT_MinorVersion = 0; /* MUST be 0 ACPI 3.0 */