Hi Tom,
I suspect that this might be related to the general problem on these
part families where SPL isn't as fast as we expect it to be, perhaps
cache related.
I did a bit of digging around following this line of thought and found an
old discussion on the mailing list
Hi Tom,
Following the experiment that yielded the following results:
U-Boot time sf read ${loadaddr} 0x20 ${loadsize}
I get the following back:
SF: 2541352 bytes @ 0x20 Read: OK
time: 2.447 seconds
I have done some reading and poking around and have added the
On Wed, Dec 17, 2014 at 04:27:37PM -, Andy Pont wrote:
Hi Tom,
Following the experiment that yielded the following results:
U-Boot time sf read ${loadaddr} 0x20 ${loadsize}
I get the following back:
SF: 2541352 bytes @ 0x20 Read: OK
time: 2.447 seconds
I have
Hi Tom,
How big is the args file? We default to placing the args at 0x8800
in ti_am335x_common.h (see CONFIG_SYS_SPL_ARGS_ADDR) to make sure that
we don't have an overlap between the DT and the kernel which is quite
possible with a reasonably sized DT and placing it at 0x8100.
On Tue, Dec 16, 2014 at 12:58:33PM -, Andy Pont wrote:
Hi Tom,
How big is the args file? We default to placing the args at 0x8800
in ti_am335x_common.h (see CONFIG_SYS_SPL_ARGS_ADDR) to make sure that
we don't have an overlap between the DT and the kernel which is quite
Hi Tom,
eMMC is likely to be faster, yes. You may also want to see what can be
trimmed from the kernel binary, in either case, and if going with an
uncompressed kernel ends up being quicker.
There are I think two issues going on here one with decompression time
which, as you say, I can
Hello,
I am currently setting up the Falcon mode support for a custom AM3354 based
platform that has U-Boot and the Linux kernel in an SPI NOR flash.
Following the instructions I have loaded the kernel to ${loadaddr} and
device tree to ${fdtaddr} from the SPI flash device and then have run:
On Mon, Dec 15, 2014 at 04:20:46PM -, Andy Pont wrote:
Hello,
I am currently setting up the Falcon mode support for a custom AM3354 based
platform that has U-Boot and the Linux kernel in an SPI NOR flash.
Following the instructions I have loaded the kernel to ${loadaddr} and
device
Hi Tom,
So first, take a look at drivers/mtd/spi/spi_spl_load.c as that's what
will be doing falcon mode work on your SPI flash.
Second, take a look at board/ti/am335x/README, you're looking for the
lines that read like:
Using Device Tree in place at 80f8, end 80f85928
I have managed
On Mon, Dec 15, 2014 at 09:08:08PM -, Andy Pont wrote:
Hi Tom,
So first, take a look at drivers/mtd/spi/spi_spl_load.c as that's what
will be doing falcon mode work on your SPI flash.
Second, take a look at board/ti/am335x/README, you're looking for the
lines that read like:
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