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NetBSD Installation and Upgrading Have trouble getting NetBSD on your toaster? |
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NEC MobilePro 900C, which NetBSD-port ?
hi !
which NetBSD-port can be used on a NEC MOBILEPRO 900C with an Xscale (PXA255) CPU ? |
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The problem with ARM is there is no 'generic' platform, devices tend to differ considerably.. so drivers have to be written.
Just because they support the PXA255 XScale processor doesn't mean they support this device. I found a small mention of it on an NetBSD mailing list, but that's about it. http://mail-index.netbsd.org/port-hp...2/04/0000.html http://mail-index.netbsd.org/port-hp...2/04/0001.html Hope that helps. |
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There is a chance that that it might, sure.. but just because they have kernel support for the processor and a toolchain that can generate code, does not mean it's a supported device.
Boostrapping as an example, unlike an x86.. this device might have a proprietary mechanism for whatever NEC supplied operating system is preloaded, so the developers may have discover a way to execute their boot code and load the kernel. What about output? a driver for the LCD? if no LCD, they would need a way of displaying output.. a serial port maybe, this could require disassemling the device to gain access to the pins. It's not enough to support the processor, even with the BSD's attempt at "generic" ARM targets (armish/evbarm/etc).. some device specific code is almost always required. |
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The portability of BSD/NetBSD isn't in question here, someone has to do the work.. and they have to be motivated to do it.
Getting the device in the hands of a few developers can never hurt, "lspci" will only show devices on a PCI bus.. critical integrated components on ARM platforms are typically not PCI. |
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