Hello Daniel,
On 07/17/2014 05:35 PM, Daniel Drake wrote:
On Thu, Jul 17, 2014 at 3:59 PM, Przemyslaw Marczak
<[email protected]> wrote:
So BL1, BL2 are running in iRAM(required small size), and u-boot is running
from a RAM.
The main reason for using existing BL1 and BL2 binaries is
that bl1 and bl2 are just working proper.
Fair enough, I was just a bit worried/curious that bl2 is only working
"by accident", and we have some strange mashup of 2 uboot versions
involved in the boot process.
I will check it tomorrow but it has works on Ubuntu.
The bootz command takes only 2 arguments here -> ${image_addr}
${ramdisk_addr} which are the numbers set by:
"run check_dtb" and "run check_ramdisk"
Maybe I made a mistake in my testing then, either way I've moved onto
a custom boot script now.
But just to clarify the bootz usage..
image_addr is defined as:
setenv image_addr ${kerneladdr} - ${fdtaddr};
so with
bootz ${image_addr} ${ramdisk_addr};
you are actually passing
bootz ${kerneladdr} - ${fdtaddr} ${ramdisk_addr};
Maybe it works for you, although the documentation suggests its usage
is not quite like that:
static char bootz_help_text[] =
"[addr [initrd[:size]] [fdt]]\n"
" - boot Linux zImage stored in memory\n"
"\tThe argument 'initrd' is optional and specifies the address\n"
"\tof the initrd in memory. The optional argument ':size' allows\n"
"\tspecifying the size of RAW initrd.\n"
#if defined(CONFIG_OF_LIBFDT)
"\tWhen booting a Linux kernel which requires a flat device-tree\n"
"\ta third argument is required which is the address of the\n"
"\tdevice-tree blob. To boot that kernel without an initrd image,\n"
"\tuse a '-' for the second argument. If you do not pass a third\n"
"\ta bd_info struct will be passed instead\n"
#endif
"";
#endif
Daniel
You were right. I made a mistake, but even that - the ramdisk for ubuntu
was loaded - because of kernel without fdt.
Thank you for testing, I will fix this and send the patches again.
Regards,
--
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
[email protected]
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