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board: ti: Update AM65x and J721e READMEs for OSPI boot

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Update AM65x and J721e README files with instructions for flashing OSPI
images.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Vignesh Raghavendra 2020-02-04 11:09:57 +05:30 • committed by Lokesh Vutla
parent 36a5c8939b
commit 29ab5d3fb4
2 changed files with 102 additions and 0 deletions
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55
board/ti/am65x/README
View file

@ -262,6 +262,61 @@ To boot kernel from eMMC, use the following commands:
=> setenv bootpart 0
=> boot
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.
=> 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:
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) |
| |
+----------------------------+
Kernel Image and DT are expected to be present in the /boot folder of UBIFS
ospi.rootfs just like in SD card case. U-Boot looks for UBI volume named
"rootfs" for rootfs.
To boot kernel from OSPI, at the U-Boot prompt:
=> setenv boot ubi
=> boot
UART:
-----
ROM supports booting from MCU_UART0 via X-Modem protocol. The entire UART-based

47
board/ti/j721e/README
View file

@ -225,3 +225,50 @@ Image formats:
| | Secure config | |
| +-------------------+ |
+-----------------------+
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.
=> 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:
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) |
| |
+----------------------------+