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src/soc/intel/fsp_baytrail/smm.c: add bootstate entry for locking SMI

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Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: Ia296a680217a38136c063cae6ed619df0c497795
Reviewed-on: https://review.coreboot.org/c/coreboot/+/30753
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Michał Żygowski 2019-01-09 00:24:07 +01:00 committed by Patrick Georgi
parent 8bd5c996ab
commit 83bb2d44b5
1 changed files with 14 additions and 0 deletions
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14
src/soc/intel/fsp_baytrail/smm.c
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@ -20,6 +20,7 @@
#include <arch/io.h>
#include <device/mmio.h>
#include <cpu/x86/smm.h>
#include <bootstate.h>
#include <soc/iomap.h>
#include <soc/pmc.h>
#include <soc/smm.h>
@ -123,3 +124,16 @@ void smm_setup_structures(void *gnvs, void *tcg, void *smi1)
"d" (APM_CNT)
);
}
static void finalize_chipset(void *unused)
{
printk(BIOS_DEBUG, "Finalizing SMM.\n");
/* Lock sleep stretching policy and set SMI lock. */
write32((void *)(PMC_BASE_ADDRESS + GEN_PMCON2),
read32((void *)(PMC_BASE_ADDRESS + GEN_PMCON2))
| SLPSX_STR_POL_LOCK | SMI_LOCK);
outb(APM_CNT_FINALIZE, APM_CNT);
}
BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, finalize_chipset, NULL);
BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT, finalize_chipset, NULL);