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| author | Matt DeVillier <matt.devillier@gmail.com> | 2018-12-25 21:54:52 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-03-03 10:11:42 +0000 |
| commit | bd6bdc5c1dce962188247e2e7abbd8292a76eb51 (patch) | |
| tree | 9ec5c07ec104b987c48d34859665295ce63a54f8 | |
| parent | 73704533d6b0f92914408b7b4a0e4272edc318c5 (diff) | |
| download | coreboot-bd6bdc5c1dce962188247e2e7abbd8292a76eb51.tar.xz | |
soc/baytrail: hook up smmstore
Adapted from implementation in sb/intel/common.
Test: build/boot variants of google/rambi with Tianocore
and SMMSTORE enabled
Change-Id: Id8adeda982feba1cbcf5e04cf0bef0a6710ad4f0
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39190
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
| -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); |