On Tue, Dec 25, 2007 at 02:44:46PM -0600, Timur Tabi wrote:
> Anton Vorontsov wrote:
>
> >Yup. I've seen it, thanks. I'm going to test it as well. ;-)
>
> If they work for you, please let Kumar know.
Unfortunately they don't.
[EMAIL PROTECTED]:~# echo abc > /dev/ttyQE0
And hang. No interrupts.
After ^C:
ucc_uart e0102400.ucc: shutdown timeout
The same for ttyQE1 (just for testing I set it up to not use
Soft-UART).
The same for loopback mode.
I wonder what are the symptoms if microcode is at fault? According
to errata description, hang isn't something I should get on the
transmit attempt.
> >MPC8360E, Rev: 21. Are you aware of any known issues on this chip
> >regarding UCC serials?
>
> Yep. You need a microcode upload. My patches describe everything.
Well. All I've found is: QERAMPTCH.zip ("RAM Microcode Patches for
PowerQUICC II Pro Family QE Errata"), which should fix QE_UART5 errata
for MPC8323 Rev 1.1. Can I assume it works for MPC8360 too? I've tried
it. No luck.
Here are dts entries I use:
firmware {
id = "Soft-UART";
extended_modes = <0 0>;
virtual_traps = <0 0 0 0 0 0 0 0>;
};
[EMAIL PROTECTED] {
device_type = "serial";
compatible = "ucc_uart";
reg = <0x2400 0x200>;
device-id = <5>;
port-number = <0>;
rx-clock-name = "brg7";
tx-clock-name = "brg8";
interrupts = <40>;
interrupt-parent = <&qeic>;
soft-uart;
};
[EMAIL PROTECTED] {
device_type = "serial";
compatible = "ucc_uart";
reg = <0x3400 0x200>;
device-id = <6>;
port-number = <1>;
rx-clock-name = "brg14";
tx-clock-name = "brg14";
interrupts = <41>;
interrupt-parent = <&qeic>;
};
Any ideas?
Thanks,
--
Anton Vorontsov
email: [EMAIL PROTECTED]
backup email: [EMAIL PROTECTED]
irc://irc.freenode.net/bd2
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