Hi Oleksij, thanks for the reply. On 2013.06.30 07:15, Oleksij Rempel wrote: > right now i'm fighting one of broadcom SOCs. But it seems like yours is > other kind. Can you please tell which EJTAG version is it?
I actually have no idea. Is there a way to find out that information without having the datasheet? From what I gather, Broadcom seems to be very tight lipped about revealing any kind of useful data about its SoCs, at least publicly. > Any way. About endians > you can check CP0 Status and Config registers by using this commands: > mips32 cp0 12 0 > mips32 cp0 15 0 Not much luck here: > mips32 cp0 12 0 couldn't access reg 12 > mips32 cp0 15 0 couldn't access reg 15 To be fair, it doesn't look like I can get any insightful data from any registers when using the current OpenOCD against this SoC. Every single register I poke reports zero, including PC (and I can't resume execution either). > Now to your flash. > I see that you set 16bit bus mode and 16 bit flash mode. But manually > you tests 0x1fc00020 which according to your flash doc should be 8bit mode. Aha, that's a good point. > Till now i never seen that manufacture decided to reduce flash size to > performance. I mean if you use 16bit mode, you will get half size for > same price ;) > > Try some thing like this: > flash bank $_FLASHNAME cfi 0x1fc00000 0x00400000 1 1 $_TARGETNAME x16_as_x8 Actually the line above is what I started with, but it's only when I used 16bit that I was able to get the expected: Flash Manufacturer/Device: 0x227e 0x0001 However, I think you're right: there's something fishy with using x16 access if the relevant data is provided from the x8 addresses, so the flash is most likely in x8 or x16_as_x8 mode. > may be you'll need different address: 0xbe000000 That's a good suggestion. I'll try to poke different base addresses in x8 mode and see what I can get. Many thanks for the pointers. Regards, /Pete ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ OpenOCD-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/openocd-devel
