[coreboot-gerrit] Change in coreboot[master]: (WIP) soc/amd/stoneyridge: Add PSP-to-BIOS handler to SMI

[frank vibrans (Code Review)]

frank vibrans has uploaded this change for review. ( https://review.coreboot.org/21994


Change subject: (WIP) soc/amd/stoneyridge: Add PSP-to-BIOS handler to SMI
......................................................................

(WIP) soc/amd/stoneyridge: Add PSP-to-BIOS handler to SMI

Modify SMI handler to handle PSP-to-BIOS communication SMIs. They
are characterized and enabled by the config value HAVE_PSP2C_MBOX.

TODO: Change the PSP-to-BIOS communication initialization mechanism
to use the command APM_CNT_GNVS_UPDATE that is not currently in place.

Change-Id: I3ad6fdaf36ee46be4585b4e7ece1e36492fa3248
Signed-off-by: Frank Vibrans <frank.vibrans at scarletltd.com>
---
M src/soc/amd/stoneyridge/smihandler.c
1 file changed, 10 insertions(+), 0 deletions(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/94/21994/1

diff --git a/src/soc/amd/stoneyridge/smihandler.c b/src/soc/amd/stoneyridge/smihandler.c
index f9bd8d7..8ff41d0 100644
--- a/src/soc/amd/stoneyridge/smihandler.c
+++ b/src/soc/amd/stoneyridge/smihandler.c
@@ -18,6 +18,7 @@
 #include <console/console.h>
 #include <cpu/x86/smm.h>
 #include <delay.h>
+#include <amdblocks/psp.h>
 #include <soc/smi.h>
 #include <soc/southbridge.h>
 
@@ -37,6 +38,12 @@
 		reg32 &= ~(1 << 0);	/* clear SCI_EN */
 		outl(ACPI_PM1_CNT_BLK, reg32);
 		break;
+#if IS_ENABLED(CONFIG_HAVE_PSP2C_MBOX)
+	case APM_CNT_PSP_SMM_INIT:
+		psp_smm_init();
+		break;
+
+#endif
 	}
 
 	mainboard_smi_apmc(cmd);
@@ -53,6 +60,9 @@
  */
 struct smi_sources_t smi_sources[] = {
 	{ .type = SMITYPE_SMI_CMD_PORT, .handler = sb_apmc_smi_handler },
+#if IS_ENABLED(CONFIG_HAVE_PSP2C_MBOX)
+	{ .type = SMITYPE_FAKE0, .handler = psp_p2cmbox_event },
+#endif
 };
 
 static void process_smi_sci(void)

-- 
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I3ad6fdaf36ee46be4585b4e7ece1e36492fa3248
Gerrit-Change-Number: 21994
Gerrit-PatchSet: 1
Gerrit-Owner: frank vibrans <frank.vibrans at scarletltd.com>
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