doc: board: ti: am62x: document OSPI layout

Added OSPI flash layout diagram, as well as example commands to flash
firmware to it.

Signed-off-by: Jonathan Humphreys <j-humphreys@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

diff --git a/doc/board/ti/am62x_sk.rst b/doc/board/ti/am62x_sk.rst
index d5f7fe3b036a44c9abad124b18666f686d3459c1..2a25e84f6c97f8e41588d9f98440041efbcde7f9 100644 (file)
--- a/doc/board/ti/am62x_sk.rst
+++ b/doc/board/ti/am62x_sk.rst
@@ -164,6 +164,30 @@ Image formats:
 .. image:: img/dm_tispl.bin.svg
   :alt: tispl.bin image format
 
+OSPI:
+-----
+ROM supports booting from OSPI from offset 0x0.
+
+Flashing images to OSPI:
+
+Below commands can be used to download tiboot3.bin, tispl.bin, and u-boot.img,
+over tftp and then flash those to OSPI at their respective addresses.
+
+.. prompt:: bash =>
+
+  sf probe
+  tftp ${loadaddr} tiboot3.bin
+  sf update $loadaddr 0x0 $filesize
+  tftp ${loadaddr} tispl.bin
+  sf update $loadaddr 0x80000 $filesize
+  tftp ${loadaddr} u-boot.img
+  sf update $loadaddr 0x280000 $filesize
+
+Flash layout for OSPI:
+
+.. image:: img/ospi_sysfw2.svg
+  :alt: OSPI flash partition layout
+
 A53 SPL DDR Memory Layout
 -------------------------
 

diff --git a/doc/board/ti/img/ospi_sysfw2.svg b/doc/board/ti/img/ospi_sysfw2.svg
new file mode 100644 (file)
index 0000000..06711df
--- /dev/null
+++ b/doc/board/ti/img/ospi_sysfw2.svg
@@ -0,0 +1,802 @@
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