summaryrefslogtreecommitdiff
path: root/Documentation/soc/intel/apollolake/index.md
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/soc/intel/apollolake/index.md')
-rw-r--r--Documentation/soc/intel/apollolake/index.md17
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/soc/intel/apollolake/index.md b/Documentation/soc/intel/apollolake/index.md
new file mode 100644
index 0000000000..d4a5ee51ae
--- /dev/null
+++ b/Documentation/soc/intel/apollolake/index.md
@@ -0,0 +1,17 @@
+# Apollolake
+## SPI flash layout
+
+![][apl_flash_layout]
+
+With Apollolake Intel invented another flash layout for x86 firmware called IFWI (Intel FirmWare Image).
+
+Usually on x86 platforms the bootblock is stored at the end of the bios region
+and the Intel ME / TXE has its own IFD region. On Apollolake both have been
+moved into the IFWI region, which is a subregion of "BIOS", since it allows to
+store multiple firmware components.
+
+The IFWI region can be manipulated by `ifwitool`.
+
+[apl_flash_layout]: flash_layout.svg
+
+