David Hinds wrote:
On Wed, Jul 13, 2005 at 07:04:38PM +0530, [email protected] wrote:
I ma newbie to compactflash driver , I am using mpc862 PPC processor
on my custom board having 64mb ram running linuxppc-2.4.18 kernel .
i am using Sandisk Extreme CF 1GB which is 133x high speed, but
found the performance with other kingston 1GB CF with slower speed ,
is both same , CF is implemented on pcmcia port , i am not sure what
is the mode set for transfer , Feature set command is used in which
it sets the PIO mode or Multiword DMA transfer mode by specifying
its value in Sector count register , i am not able to understand in
linux kernel ide driver where this is set , is it by default set ,
this mode is set or we need to set it , i think we should assign
this value , right now i am not able to trace this in my code. ,
It sounds like your card reader is one of the slow 16-bit ones.
I recommend picking up a CF-to-IDE adapter, such as this:
http://www.acscontrol.com/Index_ACS.asp?Page=/Pages/Products/CompactFlash/IDE_To_CF_Adapter.htm
...It works great for me!
There are a bunch of companies selling these... Google "cf ide adapter".
--
Michael Krufky
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
| |
 |