Hi Xie,
[...]
What is ACS?
Don't know, I don't even have a reference to that in my copy of the RCW tool. :-P
[Xie Shaohui] I don't know what is the ACS stands for either, but it is a XXD object dump file used by the tool to produce PBI, for example after run "xxd u-boot.bin > u-boot.xxd", the output u-boot.xxd is the "XXD object dump file". If you take a look at the tool, you will find a selection labeled with "ACS File (XXD object dump)" in tab "PBI".
From my point of view we simply do not want a U-Boot configuration that
needs to visit an external website to even _compile_ the code. Let alone copying stuff to and from, hex dumping it etc. This is not acceptable.
- make P4080DS_PBL_BOOT_INDIRECT_config
- make CROSS_COMPILE=powerpc-none-linux-gnuspe- all
- xxd u-boot.bin > u-boot.xxd
+3. Producing PBI commands +Switch to tab "PBI" and paste commands below into text field
(please note these
+commands are for CPC1 used as SRAM only, change corresponding
register setting
+if CPC2 need to be used as SRAM), then choose "ACS File (XXD Object
Dump)",
+change Offset to "f80000", and click "Browse" to select the
u-boot.xxd file
+produced in step 2, and click "Add PBI Data", after it finished,
paste
+"09138000 00000000" and "091380c0 00000000" at the end.
This must be a bad joke.
Can you not provide a plain and simple AUTOMATIC way to get this result? some plain stupid command line tool? Something that works as a simple "make XXX" ? So it can be scripted / automatized / used?
Yes, a simple C tool to take an existing PBL or RCW dump and "espi-ize" it into a PBL dump would be nice. The user will still need to acquire the existing RCW manually. This only needs to be done once on a board; it's not part of building a U-Boot image.
@Scott: What is meant by "acquiring the existing RCW"? Can't we have a tool that is fed with a value for RCW?
[Xie Shaohui] A simple C tool will make things more complex, the pbl_image_tool does the same thing and it is irreplaceable, something
No tool is irreplaceable, ever.
like RCW has to be produced manually, and because there is no near-universal default RCW, this README took a basic assumption that user already can boot from NOR flash, so user can reuse the RCW dump of NOR u-boot with change "PBI_SRC" and "BOOT_LOC" only.
This README describes how to build an Image can be used by PBL (pre-boot loader), building u-boot image is the first step, then RCW, PBI commands, XXD dump of u-boot.bin, the tool will combine the RCW and PBI and XXD dump together to produce the PBL XXD file, suppose the PBL XXD file is saved as x.xxd, we need to run "xxd -r x.xxd > pbl_image.bin" to produce the final PBL Image. Take a look at the whole process, I see no way it can be scripted / automatized.
I said it once before, look at how kwbimage wraps up u-boot.bin into such an "augmented" image. If the Marvell guys can do this for their platform, I see no reason why this cannot be done for your platform.
Cheers Detlev