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-rw-r--r--src/southbridge/intel/common/Kconfig1
-rw-r--r--src/southbridge/intel/common/smihandler.c25
2 files changed, 26 insertions, 0 deletions
diff --git a/src/southbridge/intel/common/Kconfig b/src/southbridge/intel/common/Kconfig
index c3bd90dca8..dfd89755ec 100644
--- a/src/southbridge/intel/common/Kconfig
+++ b/src/southbridge/intel/common/Kconfig
@@ -20,6 +20,7 @@ config SOUTHBRIDGE_INTEL_COMMON_SMBUS
config SOUTHBRIDGE_INTEL_COMMON_SPI
def_bool n
select SPI_FLASH
+ select BOOT_DEVICE_SUPPORTS_WRITES
config SOUTHBRIDGE_INTEL_COMMON_PIRQ_ACPI_GEN
def_bool n
diff --git a/src/southbridge/intel/common/smihandler.c b/src/southbridge/intel/common/smihandler.c
index daa0959e3b..d61238c865 100644
--- a/src/southbridge/intel/common/smihandler.c
+++ b/src/southbridge/intel/common/smihandler.c
@@ -27,6 +27,7 @@
#include <halt.h>
#include <pc80/mc146818rtc.h>
#include <southbridge/intel/common/pmbase.h>
+#include <smmstore.h>
#include "pmutil.h"
@@ -268,6 +269,26 @@ static void southbridge_smi_gsmi(void)
}
#endif
+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, (uintptr_t *)reg_ebx);
+ io_smi->rax = ret;
+}
+
static int mainboard_finalized = 0;
static void southbridge_smi_apmc(void)
@@ -322,6 +343,10 @@ static void southbridge_smi_apmc(void)
southbridge_smi_gsmi();
break;
#endif
+ case APM_CNT_SMMSTORE:
+ if (CONFIG(SMMSTORE))
+ southbridge_smi_store();
+ break;
}
mainboard_smi_apmc(reg8);