Hello James,
you found the same bug in the ROM code of some OMAP3 devices as I did.
Look at the Patch 'Flush UART3 xmit on enable if TEMT is broken'. Try
the Patch and let us know if it works.
Best regards,
Manfred
On 2013-04-02 00:24, James Chandler wrote:
Hello,
I was able to snag a BDI3000 and debug the issue. It turns out that the
NS16550 driver contains a while loop that waits for register or some other
value to be set during the SPL's serial_init() function. This condition was
not being met, causing serial_init() to hang. The solution was to add #define
CONFIG_SYS_NS16550_BROKEN_TEMT to the AM3517_EVM configuration. I tried to
push this back into the git repository but get unexpected hang-up errors (new
to git as well).
Thanks,
James
________________________________
From: James Chandler
Sent: Monday, April 01, 2013 11:29 AM
To: u-boot@lists.denx.de
Subject: AM3517_EVM, MLO not booting
Hello,
I am new to *nix/open-source mailing lists, so please provide any feedback
about my post that would make future posts cleaner or easier to respond to.
I am trying to build the u-boot-arm tree/fork from denx.de (new to git so the
correct terminology escapes me) for a AM3517_EV LogicPD evaluation board. I
cloned the git repository, built the MLO and u-boot.img files and then placed
them on the first partition of my SD card (fat32, active, correct #of cylinders
and heads). When I switch the power on I get two characters on my serial
console ( the first is a checker-board block from extended ascii of 170ish and
the other is a 't') and then no output follows.
I am switching to the u-boot-arm tree/fork from the u-boot-am33x tree/fork at
the Arago project, because the u-boot-am33x code from there doesn't have
functional fatwrite and ext4write commands (I can build with them in place, but
fatwrite causes mmc errors and timeout errors while ext4write does not give an
error but does not create a file). If I use the MLO from u-boot-am33x but the
u-boot.img from u-boot-arm, I can boot into the u-boot environment and into
Linux. The fatwrite and the ext4write commands on u-boot-arm also work unlike
those in u-boot-am33x.
I also have a custom board based on the AM3517_EVM (same CPU and RAM just no
flash). I copied the AM35117_EVM configuration and board/* files and made only
changes related to removing flash support (since the custom board does not have
it) and the custom board does boot using both MLO and u-boot.img from
u-boot-arm.
Has anyone else had issues with MLO on the AM3517_EVM? If so, are there any
workable solutions?
Thanks,
James
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