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[linux-dvb] Re: AMD64 and DVB
From: "Johannes Stezenbach" <js@convergence.de>
> OK, loading DPRAM works, booting the ARM works (the DRAM loader runs
> from DPRAM), loading DRAM seems to work but the firmware in DRAM
> is trashed.
The driver is using DMA to transfer the firmware into DPRAM. Is it possible
that the 64-Bit CPU -> 32-Bit PCI bus address mapping is not done
correctly? It might be worth a try putting a for() loop into the firmware
upload to make it upload in 32-bit DWORDs without DMA, and see if that
works. If it does, the DMA code is erroneous.
Regards,
--
Robert Schlabbach
e-mail: robert_s@gmx.net
Berlin, Germany
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