The generic A9M2440 comes in many SDRAM variantes. Two GPIO pins describing
the populated SDRAM devices. This patch adds some code to query the setting
and setup a correct SDRAM configuration out of four possible variants.
Due to the lack of hardware the 16 MiB and 128 MiB case is untested yet.
Due to the 32 MiB configuration we must link the u-boot-v2 always to
address 0x31fc0000. Even for the 64 MiB and 128 MiB configuration.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
The generic A9M2440 comes with a CS8900 network controller at chip select 5.
There are custom specific variants available without this device, but this
case will be handled in a separate baseboard file.
The current Linux-2.6.31 CS8900 network driver is a very poor piece of
code. It needs some patches to also work with this platform. So, I add
two kernel parameters to be able to use this network device also in the NFS
rootfs case (to setup media and MAC).
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
The generic A9M2440 comes in many variantes. Mostly with different SDRAM
and NAND populations. This patch reflects and describes these variants.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
This patch adds code to determine the current available SDRAM size. It relies
on other routines setting up the SDRAM controller, because it only read back
their settings.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Adapt the pcm043 plattform to be able to boot from NOR and NAND
Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The main/spare areas are on different addresses on later versions
of the controller, so make them configurable.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This factors the address cycle to a seperate function. This
becomes useful in a later patch where we can simplify the
command processing by making use of this function.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Boot on this board was broken following ram updates in u-boot
Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Use IH_CPU_I386 for amd64 machines as well, so bootm.c is able to build
on amd64 sandbox.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
No need to check for maximum argument counts. The commands are
safe to be called with more arguments, so lets safe some bytes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This allows us to return COMMAND_ERROR_USAGE for
a failed command which will then print the usage,
a very common case for commands.
Signed-off-by: Sascha Hauer <sha@pengutronix.de>
Juergen Beisert
Sascha Hauer
Juergen Beisert
Eric Benard
Peter Korsgaard
Jean-Christophe PLAGNIOL-VILLARD
Sascha Hauer