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sb/lynxpoint: hook up smmstore 

Adapted from implementation in sb/intel/common.

Test: build/boot variants of google/{beltino,slippy}
with Tianocore and SMMSTORE enabled

Change-Id: I64f520d17146206b8b9b41fc4f827539c5cfd507
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39189
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Matt DeVillier 2018-12-24 21:46:46 -06:00
parent 63cdea2b2d
commit 8187f11d1a
1 changed files with 25 additions and 1 deletions
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26
src/southbridge/intel/lynxpoint/smihandler.c
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@ -29,7 +29,7 @@
#include <southbridge/intel/common/finalize.h>
#include <northbridge/intel/haswell/haswell.h>
#include <cpu/intel/haswell/haswell.h>
#include <smmstore.h>
#include "me.h"
#include "pch.h"
#include "nvs.h"
@ -266,6 +266,26 @@ static void southbridge_smi_gsmi(void)
*ret = gsmi_exec(sub_command, param);
}
static void southbridge_smi_store(void)
{
u8 sub_command, ret;
em64t101_smm_state_save_area_t *io_smi =
smi_apmc_find_state_save(APM_CNT_SMMSTORE);
uint32_t reg_ebx;
if (!io_smi)
return;
/* Command and return value in EAX */
sub_command = (io_smi->rax >> 8) & 0xff;
/* Parameter buffer in EBX */
reg_ebx = io_smi->rbx;
/* drivers/smmstore/smi.c */
ret = smmstore_exec(sub_command, (void *)reg_ebx);
io_smi->rax = ret;
}
static void southbridge_smi_apmc(void)
{
u8 reg8;
@ -332,6 +352,10 @@ static void southbridge_smi_apmc(void)
if (CONFIG(ELOG_GSMI))
southbridge_smi_gsmi();
break;
case APM_CNT_SMMSTORE:
if (CONFIG(SMMSTORE))
southbridge_smi_store();
break;
}
mainboard_smi_apmc(reg8);