sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

soc/intel/apollolake: Add handling of GNVS ACPI entry for CHROMEOS builds

Browse Source 
Add chromeos required GNVS feature. The GNVS table stays in both CBMEM
and ACPI DSDT tables.

Change-Id: I4db0eb18d2de62917a94704318a7896c04e4777f
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/14471
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Lance Zhao
2016-04-19 18:04:21 -07:00
committed by Aaron Durbin
parent 164e8f1d9b
commit 1bd0c0c497
6 changed files with 110 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
src/soc/intel/apollolake/acpi.c
View File

@@ -16,12 +16,15 @@
*/
#include <arch/acpi.h>
#include <arch/acpigen.h>
#include <arch/ioapic.h>
#include <arch/smp/mpspec.h>
#include <cbmem.h>
#include <cpu/x86/smm.h>
#include <soc/acpi.h>
#include <soc/iomap.h>
#include <soc/pm.h>
#include <soc/nvs.h>
unsigned long acpi_fill_mcfg(unsigned long current)
{
@@ -125,3 +128,29 @@ unsigned long southbridge_write_acpi_tables(device_t device,
{
return acpi_write_hpet(device, current, rsdp);
}
static void acpi_create_gnvs(struct global_nvs_t *gnvs)
{
if (IS_ENABLED(CONFIG_CHROMEOS)) {
/* Initialize Verified Boot data */
chromeos_init_vboot(&gnvs->chromeos);
gnvs->chromeos.vbt2 = ACTIVE_ECFW_RO;
}
}
void southbridge_inject_dsdt(device_t device)
{
struct global_nvs_t *gnvs;
gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
if (gnvs) {
acpi_create_gnvs(gnvs);
acpi_save_gnvs((uintptr_t)gnvs);
/* Add it to DSDT. */
acpigen_write_scope("\\");
acpigen_write_name_dword("NVSA", (uintptr_t)gnvs);
acpigen_pop_len();
}
}