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-rw-r--r--head.S5
1 files changed, 4 insertions, 1 deletions
diff --git a/head.S b/head.S
index bb51a2c..941c92d 100644
--- a/head.S
+++ b/head.S
@@ -35,7 +35,10 @@
* 0x1101000 +-----------------------+
* | free space |
* | used as stack |
- * +-----------------------+
+ * 0x1100110 +-----------------------+
+ * | SPI0 or SPI1 | MIC need to fill it:
+ * | | 0x0: SPI0, 0x1: SPI1
+ * 0x110010c +-----------------------+
* | boot stub spi uart | MIC need to fill it:
* | suppression flag | 0x1 suppression, 0x0 default
* 0x1100108 +-----------------------+