[U-Boot-Users] MPC83xx: CF in True IDE mode
Joao, Nuno (ext)
nuno.joao-ext_nbs at siemens.com
Fri Apr 21 17:53:42 CEST 2006
We're using a CF card in TrueIDE mode, on a board with u-boot
A CPLD maps the CF bus (only the signals needed for IDE mode)
into MPC's memory map; this makes the "IDE physical" interface.
UPM machines are used for the accesses timing. 2 chipselects
are also used, one for the "normal" register file and another
for the "alternative register file".
u-boot's "ide" command is used; it was only changed in the
register access routines, because of different address
calculation and endianess.
You have to be careful when interfacing the CF card (or any
IDE device) with the MPCs. Keep in mind that register 0 (the
data register) is accessed at address 0 and is 16 bit wide;
the remaining registers are accessed in the next consecutive
addresses (1, 2, ...), but are 8 bit wide.
From: u-boot-users-admin at lists.sourceforge.net
[mailto:u-boot-users-admin at lists.sourceforge.net] On Behalf Of Yogi
Sent: quinta-feira, 20 de Abril de 2006 23:36
Subject: [U-Boot-Users] MPC83xx: CF in True IDE mode
> Is there support for CF access in true IDE mode for
> 83xx with Reiser File system ?
More information about the U-Boot