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The minimum support firmware (excluding the metldr enforced one) can be seen [[Motherboard_Revisions#Product_Sub_Code|here]] and also the mapping to the Chassis ID.<br>
The minimum support firmware (excluding the metldr enforced one) can be seen [[Motherboard_Revisions#Product_Sub_Code|here]] and also the mapping to the Chassis ID.<br>
There seem to be only 4 groups (4.15, 4.20, 4.40 and 4.50).
There seem to be only 4 groups (4.15, 4.20, 4.40 and 4.50).
== SW "EEPROM" ([[Special:Diff/63500/63501|diff]]) ==
The platform ID (hex and/or string) doesn't have to be at 0x60000 (SW) or 0xA0000 (SW2/3). That's where the eeprom emulation space starts.<br>
At least from what I know now, the eeprom emulation can mark blocks as invalid.<br>
That means if the block size is set to 16 bit, every 16 bit can be replaced by a different block and the old one just gets marked "invalid" (the data stays there).<br>
It also does wear leveling so if you change some data multiple times, the location will change but the old data won't (and maybe only some words will be remapped).<br>
I would rather not list that else someone could think they can read the values directly from the flash image, but that might lead to problems.<br>
Or maybe add a disclaimer that under normal circumstances you can read some things from there but you can't trust it 100%. (you can trust r 0 8 though)
*I tryed to improve the descriptions in [[Special:Diff/63503/63511|this edit]], there are still many details i dont understand fully, btw if we dont count the block remapping and wear leveling features the emulated EEPROm should be always located in that offsets, right ?, in other words... in the worst scenario posible the only relocated data we are going to find are just some blocks "here and there" (in other words, a couple of bytes here and there) but finding a big chunks of relocated data (lets say 20 consecutive blocks relocated) is not much probable, right ?. In the practise... if we take a look at 0x60000 (SW) or 0xA0000 (SW2/3) there is a huge probability to find some of the original data, right ?, im just asking for the purpose of identifying where the regions starts and ends. Im also asking because [[Special:Diff/63501/63503|this sample]] surprised me a bit, how is posible to be completly empty after the first 0x40 bytes ?, in all the other samples i have this area of 0x250 bytes seems to have at least 4 or 5 different "chunks" of data, maybe is because the dumper tools are not "rebuilding" it properlly ?. Last btw... i been using the concept of "overriding" data chunks because i was thking there was 2 copies of the data chunks (one of them "read only" and the other "read/write" in the emulated EEPROM), but right now i have doubts, it makes sense to keep only 1 copy, but the first 0x250 bytes in the emulated EEPROM of the SW3-302 full dump sample we have that is almost filled completly with FF's doesnt makes sense
**The emulated EEPROM has no real offset. The data at 0x60000 or 0xA0000 (length 0x20000) is used to emulate the EEPROM, it's not the emulated EEPROM. The only way to access that is to use the dedicated read/write functions. Or reverse them and then you can extract the data from the flash image.
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