[PATCH v6 035/102] x86: Add mrccache support for a 'variable' cache

[Simon Glass]

Add support for a second cache type, for Apollo Lake.

Signed-off-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
---

Changes in v6: None
Changes in v5: None
Changes in v4:
- apollolake -> Apollo Lake

Changes in v3:
- Move the mrccache_get_region() change into this patch

Changes in v2: None

 arch/x86/include/asm/mrccache.h | 1 +
 arch/x86/lib/mrccache.c         | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/mrccache.h b/arch/x86/include/asm/mrccache.h
index b81e2b2fb6..0917cf2470 100644
--- a/arch/x86/include/asm/mrccache.h
+++ b/arch/x86/include/asm/mrccache.h
@@ -30,6 +30,7 @@ struct mrc_region {
 /* Types of MRC data */
 enum mrc_type_t {
 	MRC_TYPE_NORMAL,
+	MRC_TYPE_VAR,
 
 	MRC_TYPE_COUNT,
 };
diff --git a/arch/x86/lib/mrccache.c b/arch/x86/lib/mrccache.c
index 1278737ce4..10949d249e 100644
--- a/arch/x86/lib/mrccache.c
+++ b/arch/x86/lib/mrccache.c
@@ -241,7 +241,8 @@ int mrccache_get_region(enum mrc_type_t type, struct udevice **devp,
 	}
 
 	/* Find the place where we put the MRC cache */
-	mrc_node = dev_read_subnode(dev, "rw-mrc-cache");
+	mrc_node = dev_read_subnode(dev, type == MRC_TYPE_NORMAL ?
+				    "rw-mrc-cache" : "rw-var-mrc-cache");
 	if (!ofnode_valid(mrc_node))
 		return log_msg_ret("Cannot find node", -EPERM);
 
-- 
2.24.0.393.g34dc348eaf-goog