GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

soc/intel/alderlake: Perform `heci_finalize` prior to booting to OS 

`heci_finalize` ensures to put all heci devices to D3 by setting the
D0i3 bit prior to booting to the OS.

BUG=b:200644229
TEST=Verified D0i3 bit is set for all HECI devices prior to booting
to OS.

Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Change-Id: I86d5959646522f9a2169bf13ae04d88b8f685e14
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58040
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Subrata Banik 2021-09-30 20:32:50 +05:30
parent 3710e9972b
commit 78e66ad63b
1 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
src/soc/intel/alderlake/finalize.c
View File

@ -13,6 +13,7 @@
#include <cpu/x86/smm.h> #include <cpu/x86/smm.h>
#include <device/mmio.h> #include <device/mmio.h>
#include <device/pci.h> #include <device/pci.h>
#include <intelblocks/cse.h>
#include <intelblocks/lpc_lib.h> #include <intelblocks/lpc_lib.h>
#include <intelblocks/pcr.h> #include <intelblocks/pcr.h>
#include <intelblocks/pmclib.h> #include <intelblocks/pmclib.h>
@ -90,6 +91,23 @@ static void sa_finalize(void)
sa_lock_pam(); sa_lock_pam();
} }
static void heci_finalize(void)
{
unsigned int cse_dev[] = {
PCH_DEVFN_CSE,
PCH_DEVFN_CSE_2,
PCH_DEVFN_CSE_3,
PCH_DEVFN_CSE_4
};
for (int i = 0; i < ARRAY_SIZE(cse_dev); i++) {
if (!is_cse_devfn_visible(cse_dev[i]))
continue;
set_cse_device_state(cse_dev[i], DEV_IDLE);
}
}
static void soc_finalize(void *unused) static void soc_finalize(void *unused)
{ {
printk(BIOS_DEBUG, "Finalizing chipset.\n"); printk(BIOS_DEBUG, "Finalizing chipset.\n");
@ -98,6 +116,7 @@ static void soc_finalize(void *unused)
apm_control(APM_CNT_FINALIZE); apm_control(APM_CNT_FINALIZE);
tbt_finalize(); tbt_finalize();
sa_finalize(); sa_finalize();
heci_finalize();
/* Indicate finalize step with post code */ /* Indicate finalize step with post code */
post_code(POST_OS_BOOT); post_code(POST_OS_BOOT);