From: Jonathan Humphreys Date: Fri, 14 Jun 2024 16:35:42 +0000 (-0500) Subject: doc: board: ti: am62x: document OSPI layout X-Git-Url: http://git.dujemihanovic.xyz/img/static/git-logo.png?a=commitdiff_plain;h=3b7a4b5d1ad897f08c9d666534622a344bf158c2;p=u-boot.git 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 Reviewed-by: Tom Rini --- diff --git a/doc/board/ti/am62x_sk.rst b/doc/board/ti/am62x_sk.rst index d5f7fe3b03..2a25e84f6c 100644 --- 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 index 0000000000..06711df411 --- /dev/null +++ b/doc/board/ti/img/ospi_sysfw2.svg @@ -0,0 +1,802 @@ + + + + + + + + + + + + + + + + + + + ospi.tiboot3(512k) + + + + ospi.tiboot3(512k) + + + + + + + + + + + + + + 0x0 + + + + + 0x0 + + + + + + + + + + + + + ospi.tispl(2M) + + + + ospi.tispl(2M) + + + + + + + + + + + + + + 0x80000 + + + + + 0x80000 + + + + + + + + + + + + + ospi.u-boot(4M) + + + + ospi.u-boot(4M) + + + + + + + + + + + + + + 0x280000 + + + + + 0x280000 + + + + + + + + + + + + + ospi.env(128K) + + + + ospi.env(128K) + + + + + + + + + + + + + + 0x680000 + + + + + 0x680000 + + + + + + + + + + + + + ospi.env.backup(128K) + + + + ospi.env.backup(128K) + + + + + + + + + + + + + + 0x6C0000 + + + + + 0x6C0000 + + + + + + + + + + + + + padding(768K) + + + + padding(768K) + + + + + + + + + + + + + + 0x740000 + + + + + 0x740000 + + + + + + + + + + + + + ospi.rootfs(UBIFS) + + + + ospi.rootfs(UBIFS) + + + + + + + + + + + + + + 0x800000 + + + + + 0x800000 + + + + + + + + + + + + + ospi.phypattern(256k) + + + + ospi.phypattern(256k) + + + + + + + + + + + + + + 0x3FC0000 + + + + + 0x3FC0000 + + + + +