memory bootargs change

Related to ER 265783 "Existing SI memory map no more compatible for MM"
and ER 260608 "VC: Black incoming call screen".

The Linux kernel and graphics memory parameters have changed.
Furthermore there are different layouts for 256 MB and 512 MB SDRAM resp.

With this change U-Boot detects dynamically the memory size by making some
fixed assumptions about the memory chip and controller and by reading the
number of actually used rows and columns.
It then sets the environment variable memargs to add either memargs256
or memargs512 to "bootargs". "memargs256" and "memargs512" are stored in the
U-Boot environment area. The default values are set in include/configs/u5000.h

Also the default uImage copy size was increased from 2 MiB to 3 MiB, since
the released uImage size is close to 2 MiB and some developers uImage is
already above.

Tested with HREF ED (256 MB) (LBP only), HREF 1.0 V20 OM (256 MB) and
HREF+ 1.1 V31 (512 MB).

Erase the U-Boot environment first, if you want the new settings.

ST-Ericsson ID: ER265783

Signed-off-by: Michael Brandt <michael.brandt@stericsson.com>
Change-Id: I2467c9e410738a3655fc0fd25548cd6f4eb8351c
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/2464
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Reviewed-by: Per-Daniel OLSSON <per-daniel.olsson@stericsson.com>
Reviewed-by: Dan JOHANSSON <dan.johansson@stericsson.com>

0 files changed, 0 insertions, 0 deletions