Change in coreboot[master]: soc/intel/common/block/smm: Add option to have SOC specific SMI Handler

[Subrata Banik (Code Review)]

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/23810

Change subject: soc/intel/common/block/smm: Add option to have SOC specific SMI Handler
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soc/intel/common/block/smm: Add option to have SOC specific SMI Handler

This patch ensures common code provides an option to register a
SOC specific SMI handler.

Change-Id: I50fb154cc1ad4b3459bc352d2065f2c582711c20
Signed-off-by: Subrata Banik 
---
M src/soc/intel/common/block/include/intelblocks/smihandler.h
M src/soc/intel/common/block/smm/smihandler.c
2 files changed, 12 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/10/23810/1

diff --git a/src/soc/intel/common/block/include/intelblocks/smihandler.h b/src/soc/intel/common/block/include/intelblocks/smihandler.h
index df2d17c..565b1e8 100644
--- a/src/soc/intel/common/block/include/intelblocks/smihandler.h
+++ b/src/soc/intel/common/block/include/intelblocks/smihandler.h
@@ -148,6 +148,9 @@

/* SoC overrides. */

+/* SMI handlers implemented inside SOC for MISC operation */
+void smihandler_soc_misc(void);
+
 /*
  * This function returns a 1 or 0 depending on whether disable_busmaster
  * needs to be done for the specified device on S5 entry
diff --git a/src/soc/intel/common/block/smm/smihandler.c b/src/soc/intel/common/block/smm/smihandler.c
index 8a877c3..1dc61d1 100644
--- a/src/soc/intel/common/block/smm/smihandler.c
+++ b/src/soc/intel/common/block/smm/smihandler.c
@@ -38,6 +38,12 @@

/* SoC overrides. */

+/* SMI handlers implemented inside SOC for MISC operation */
+__attribute__((weak)) void smihandler_soc_misc(void)
+{
+	return;
+}
+
 __attribute__((weak)) int smihandler_soc_disable_busmaster(device_t dev)
 {
    return 1;
@@ -278,6 +284,9 @@
    if (IS_ENABLED(CONFIG_SPI_FLASH_SMM))
    	/* Re-init SPI driver to handle locked BAR */
    	fast_spi_init();
+
+	/* Specific SOC SMI handler */
+	smihandler_soc_misc();
 }

void smihandler_southbridge_apmc(