Hi Tom,
Am 2014-03-12 22:32, schrieb Tom Rini:
On Wed, Mar 12, 2014 at 07:42:54PM +0100, Michael Walle wrote:
Move addresses for kernel, ramdisk and fdt blob to own variables. Add
dtb
blob loading to all existing boot scripts, dtb filenames were taken
from
vanilla kernel. Introduce new boot script bootcmd_legacy, which only
loads
a kernel and a ramdisk. Make this the default boot script. This should
also
restore the behaviour of the original bootloader.
How much memory do these platforms have?
LS-CHLv2 has 64MB and LS-XHL has 256MB. The kernel_addr and ramdisk_addr
are the value which was also used in the original bootloader.
Having just spent a bunch of
time issues about where to load what on TI platforms, I'm a little
worried about some of the locations:
+ "kernel_addr=0x00100000\0" \
Below 32MB which isn't optimal.
why is that? iirc the kernel is unpacked to 0x8000, isn't it? ok there
might be some problems unpacking the kernel.
+ "ramdisk_addr=0x00800000\0" \
+ "fdt_addr=0x007f0000\0" \
This doesn't leave a whole lot of space for the kernel before
overwriting either of these.
I must admit i've never worried about where to put these. Any
suggestions? initrd at the end of the ram? although i'd like to keep
both platforms the same, eg. i'd take 64MB as the end of ram.
+ "bootcmd_legacy=ide reset " \
+ "&& ext2load ide ${hdpart} ${kernel_addr} " \
Add CONFIG_CMD_FS_GENERIC and just 'load' here and elsewhere (incl
fatload).
i'll have a look at it.
thanks for the suggestions,
-michael
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