[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4688: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4690: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4691: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4692: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823)
Parallella Community • View topic - bootlog/ Reserved memory

Parallella Community

Supercomputing for Everyone
https://parallella.org/forums/

bootlog/ Reserved memory

https://parallella.org/forums/viewtopic.php?f=48&t=396

Page 1 of 1

bootlog/ Reserved memory

PostPosted: Tue Jun 25, 2013 5:34 pm
by tnt

Re: bootlog/ Reserved memory

PostPosted: Tue Jun 25, 2013 9:54 pm
by rtrogan
Hi Sylvain,
You are absolutely right, the u-boot built with xilinx-v14.4 tag will boot Linux without reserving any memory (ignoring what is defined in the devicetree.dtb). This happens because bootm command verifies and alters devicetree.dtb before booting Linux. In the older versions of u-boot the boot was performed without bootm command and modifying the source code of devicetree only was sufficient for getting reserved memory area. Now, when booting with bootm command we have to make an additional changes to u-boot source code (sorry I forgot to update the user guide).

Please add the following line to u-boot-xlnx/include/configs/zynq_zed.h and build new u-boot:

#define CONFIG_SYS_MEM_TOP_HIDE 0x2000000

Thanks,
Roman.