diff --git a/src/drivers/elog/elog.c b/src/drivers/elog/elog.c
index 059b089bb8..94af16e3c0 100644
--- a/src/drivers/elog/elog.c
+++ b/src/drivers/elog/elog.c
@@ -546,8 +546,7 @@ int elog_init(void)
 
 	elog_debug("elog_init()\n");
 
-	/* Prepare SPI */
-	spi_init();
+	/* Probe SPI chip. SPI controller must already be initialized. */
 	elog_spi = spi_flash_probe(CONFIG_BOOT_MEDIA_SPI_BUS, 0);
 	if (!elog_spi) {
 		printk(BIOS_ERR, "ELOG: Unable to find SPI flash\n");
diff --git a/src/include/elog.h b/src/include/elog.h
index 648ce42b38..77275456e1 100644
--- a/src/include/elog.h
+++ b/src/include/elog.h
@@ -148,6 +148,7 @@ struct elog_event_data_me_extended {
 /* CPU Thermal Trip */
 #define ELOG_TYPE_THERM_TRIP              0xa7
 
+/* Eventlog backing storage must be initialized before calling elog_init(). */
 extern int elog_init(void);
 extern int elog_clear(void);
 extern void elog_add_event_raw(u8 event_type, void *data, u8 data_size);