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7.2 Memory size configuration 40
pixclock : 1694498816
xres : 800
yres : 600
act_high : 1
hsync_len : 200
left_margin : 24
right_margin : 161
vsync_len : 6
upper_margin : 4
lower_margin : 29
active : 1
As with switching to a known panel, the settings take effect immediately
upon completion of the command. This can be a very quick way to add
support for a new display before committing it to the supported list.
Adding an entry into the lcd panels array in common/lcd panels.c
will provide boot-time support.
7.1.5 Saving settings to Flash EEPROM
All of the descriptions above are useful, but don’t address the issue of persis-
tence. That is performed through the use of the ’panel’ environment variable
and the ’saveenv’ Das U-Boot command.
The following example shows the process.
$ set panel crt1024x768
$ save
Saving Environment to Flash...
Un-Protected 1 sectors
Erasing Flash...
Erased 1 sectors
Writing to Flash... done
Protected 1 sectors
7.2 Memory size configuration
The Neon
R
supports either 32 or 64MB of RAM.
Most of the default boot loader configuration assumes at least 32MB of
RAM is available. In particular, the TEXT BASE variable in board/neon/config.mk
links the uboot.bin image at 31MB from the start of RAM.
December 28, 2005 Revision 2.8