diff options
| -rw-r--r-- | src/soc/intel/baytrail/smihandler.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/smihandler.c b/src/soc/intel/baytrail/smihandler.c index 3a096e3d80..b8226c29dd 100644 --- a/src/soc/intel/baytrail/smihandler.c +++ b/src/soc/intel/baytrail/smihandler.c @@ -24,6 +24,7 @@ #include <elog.h> #include <halt.h> #include <spi-generic.h> +#include <smmstore.h> #include <soc/iosf.h> #include <soc/pci_devs.h> @@ -282,6 +283,26 @@ static void soc_legacy(void) LPSS_ACPI_MODE_DISABLE(SPI); } +static void southbridge_smi_store(void) +{ + u8 sub_command, ret; + em64t100_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) { uint8_t reg8; @@ -334,6 +355,10 @@ static void southbridge_smi_apmc(void) case APM_CNT_LEGACY: soc_legacy(); break; + case APM_CNT_SMMSTORE: + if (CONFIG(SMMSTORE)) + southbridge_smi_store(); + break; } mainboard_smi_apmc(reg8); |