[U-Boot] [PATCH] 440spe MQ initialization

[Prodyut Hazarika]

Hi Stefan/Yuri,
I looked at the changes. 
I had already submitted the changes in an earlier patch. This code to set the PLB4 arbiter depth was moved to cpu_init_f function in cpu/ppc4xx/cpu_init.c since it is common across many processor families.
 
Please don't do the same thing again in the program_memory_queue function.
 
Thanks,
Prodyut
 

________________________________

From: Stefan Roese [mailto:sr at denx.de]
Sent: Tue 9/23/2008 2:43 AM
To: Yuri Tikhonov
Cc: u-boot at lists.denx.de; Prodyut Hazarika; Olga Buchonina
Subject: Re: [U-Boot] [PATCH] 440spe MQ initialization



On Tuesday 23 September 2008, Yuri Tikhonov wrote:
>  BTW, when I said "recommended by AMCC" in the patch description I
> referred to the following information forwarded to me by Wolfgang
> Denk on Tue Mar 18 2008:
>
> ---
> Dear Yuri,
>
> here is some additional (and hopefully helpful) information from AMCC
>
> regarding the observed hangs on the katmai board:
> > If possible, can you please check if you still see the lock up when
> > you program MQ as follows:
> > set value in HB and if you are using LL also as follows:
> > MQ0_CF1H  = 0x80001C80
> > MQ0_CF1L  =  0x80001C80
> > Additionally, make sure that your PLB settings are:
> > PLB0_ACR  = 0xDF000000 ( 4 deep read and 2 deep write)
> > PLB1_ACR =  0xDF000000 ( 4 deep read and 2 deep write)
> > Please let me know if this fixes the issue.
> > I also would like to know how you are programming your DMA and how
> > is the traffic is pipelined.
> > Regards,
> > Olga Buchonina
> > AMCC PowerPC Applications Engineering

Understood. I just would like to see an ACK from AMCC on this since they just
updated this MQ init code.

Best regards,
Stefan

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