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-rw-r--r--src/include/cbmem.h5
-rw-r--r--src/lib/hardwaremain.c10
2 files changed, 15 insertions, 0 deletions
diff --git a/src/include/cbmem.h b/src/include/cbmem.h
index d0f0c9a5cc..1212cb2655 100644
--- a/src/include/cbmem.h
+++ b/src/include/cbmem.h
@@ -67,6 +67,11 @@
#ifndef __ASSEMBLER__
#ifndef __PRE_RAM__
extern uint64_t high_tables_base, high_tables_size;
+#if CONFIG_EARLY_CBMEM_INIT
+/* Return 0 on success, < 0 on error. */
+int __attribute__((weak)) cbmem_get_table_location(uint64_t *tables_base,
+ uint64_t *tables_size);
+#endif
#endif
int cbmem_initialize(void);
diff --git a/src/lib/hardwaremain.c b/src/lib/hardwaremain.c
index d2213d2c83..b29cc93e79 100644
--- a/src/lib/hardwaremain.c
+++ b/src/lib/hardwaremain.c
@@ -85,6 +85,16 @@ void hardwaremain(int boot_complete)
/* FIXME: Is there a better way to handle this? */
init_timer();
+ /* CONFIG_EARLY_CBMEM_INIT indicates that romstage initialized
+ * the cbmem area. Therefore the table location can be initialized
+ * early in ramstage if cbmem_get_table_location() is implemented.
+ */
+#if CONFIG_EARLY_CBMEM_INIT
+ if (cbmem_get_table_location != NULL &&
+ !cbmem_get_table_location(&high_tables_base, &high_tables_size))
+ cbmem_initialize();
+#endif
+
timestamp_stash(TS_DEVICE_ENUMERATE);
/* Initialize chips early, they might disable unused devices. */