[PATCH v3 07/19] doc: board: ti: j721e: document OSPI layout
Jonathan Humphreys
j-humphreys at ti.com
Fri Apr 19 22:56:49 CEST 2024
Signed-off-by: Jonathan Humphreys <j-humphreys at ti.com>
---
doc/board/ti/j721e_evm.rst | 85 +++++++++++++++++++++++++-------------
1 file changed, 56 insertions(+), 29 deletions(-)
diff --git a/doc/board/ti/j721e_evm.rst b/doc/board/ti/j721e_evm.rst
index a422a9bf1a0..a0fc37ab6d7 100644
--- a/doc/board/ti/j721e_evm.rst
+++ b/doc/board/ti/j721e_evm.rst
@@ -150,6 +150,60 @@ Image formats:
.. image:: img/sysfw.itb.svg
:alt: sysfw.itb 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, u-boot.img,
+and sysfw.itb 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
+ tftp ${loadaddr} sysfw.itb
+ sf update $loadaddr 0x6C0000 $filesize
+
+Flash layout for OSPI:
+
+ .. code-block:: console
+
+ 0x0 +----------------------------+
+ | ospi.tiboot3(512K) |
+ | |
+ 0x80000 +----------------------------+
+ | ospi.tispl(2M) |
+ | |
+ 0x280000 +----------------------------+
+ | ospi.u-boot(4M) |
+ | |
+ 0x680000 +----------------------------+
+ | ospi.env(128K) |
+ | |
+ 0x6A0000 +----------------------------+
+ | ospi.env.backup (128K) |
+ | |
+ 0x6C0000 +----------------------------+
+ | ospi.sysfw(1M) |
+ | |
+ 0x7C0000 +----------------------------+
+ | padding (256k) |
+ 0x800000 +----------------------------+
+ | ospi.rootfs(UBIFS) |
+ | |
+ 0x3FE0000 +----------------------------+
+ | ospi.phypattern (128k) |
+ | |
+ +----------------------------+
+
R5 Memory Map:
--------------
@@ -193,35 +247,8 @@ R5 Memory Map:
- 0x41cffbfc
- 0x41cfffff
-OSPI:
------
-ROM supports booting from OSPI from offset 0x0.
-
-Flashing images to OSPI:
-
-Below commands can be used to download tiboot3.bin, tispl.bin, u-boot.img,
-and sysfw.itb 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
- tftp ${loadaddr} sysfw.itb
- sf update $loadaddr 0x6C0000 $filesize
-
-Flash layout for OSPI:
-
-.. image:: img/ospi_sysfw.svg
- :alt: OSPI flash partition layout
-
-Firmwares:
-----------
+Firmware:
+---------
The J721e u-boot allows firmware to be loaded for the Cortex-R5 subsystem.
The CPSW5G in J7200 and CPSW9G in J721E present in MAIN domain is configured
--
2.34.1
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