soc/broadwell: hook up smmstore
Adapted from implementation in sb/intel/common. Test: build/boot variants of google/{jecht, auron} with Tianocore and SMMSTORE enabled Change-Id: I4d2aaa80dad229a6c7b947d0edf8fb1174050ad0 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39192 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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@ -35,6 +35,7 @@
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#include <soc/rcba.h>
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#include <soc/xhci.h>
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#include <drivers/intel/gma/i915_reg.h>
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#include <smmstore.h>
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static u8 smm_initialized = 0;
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@ -311,6 +312,26 @@ static void southbridge_smi_gsmi(void)
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*ret = gsmi_exec(sub_command, param);
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}
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static void southbridge_smi_store(void)
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{
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u8 sub_command, ret;
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em64t101_smm_state_save_area_t *io_smi =
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smi_apmc_find_state_save(APM_CNT_SMMSTORE);
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uint32_t reg_ebx;
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if (!io_smi)
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return;
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/* Command and return value in EAX */
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sub_command = (io_smi->rax >> 8) & 0xff;
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/* Parameter buffer in EBX */
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reg_ebx = io_smi->rbx;
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/* drivers/smmstore/smi.c */
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ret = smmstore_exec(sub_command, (void *)reg_ebx);
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io_smi->rax = ret;
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}
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static void southbridge_smi_apmc(void)
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{
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u8 reg8;
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@ -352,6 +373,10 @@ static void southbridge_smi_apmc(void)
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if (CONFIG(ELOG_GSMI))
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southbridge_smi_gsmi();
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break;
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case APM_CNT_SMMSTORE:
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if (CONFIG(SMMSTORE))
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southbridge_smi_store();
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break;
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}
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mainboard_smi_apmc(reg8);
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