Hello Jerry,
I think the easiest way to control a Sandisk compact flash card is in true
IDE mode.
We developed our own custom board based around a 405GP (or 405GPr) chip and
an intel 82371 Southbridge. The southbridge provides 2 IDE interfaces on
which you can attach the Compact flash socket.
You will then find all you need in U-boot to load the kernel and file
system from the compact flash.
Laurent
"Jerry Walden" <jwalden at digitalatlantic.com> on 24/12/2002 02:27:00
Please respond to jwalden at digitalatlantic.com
To: linuxppc-embedded at lists.linuxppc.org
cc:
Subject: "Standard" Practice for config of SanDisk compact pci memory
for 405gp ppc
Our hardware guy is tells me that the SanDisk can be placed
in one of three modes:
1) PC Card Memory Mode
2) PC Card I/O Mode
3) True IDE Mode
The device is going on a custom ppc 405GPr board.
He is also asking me how the device will be accessed
1) on bytes
2) on words
3) or both
I am not much of a hardware person, so I am not even certain if the
question I am asking makes sense.
The main goal is to use u-boot to bootstrap and initialize the board,
and to load the linux kernel/file system from the compact flash.
Does anyone have a reference design for a ppc based SBC with a
san-disc like part on it that runs Linux?
If not, is there a "standard" configuration the the compact flash
is placed on the bus?
Kindest Regards,
Jerry
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