* S-JTAG on A33
@ 2021-06-18 22:03 Giulio Benetti
0 siblings, 0 replies; 5+ messages in thread
From: Giulio Benetti @ 2021-06-18 22:03 UTC (permalink / raw)
To: linux-sunxi
Hello All,
have anyone accessed A33 jtag through s-jtag(PL4-PL7) port? In u-boot
present in sd-card on SDC0 I've configured those pins as jtag mux(both
tried 2 and 3 as values), but while Trace32 answers on jtag(PF port)
here it doesn't answer. I've double-checked with md.l under u-boot and
the values are correct, it seems something is missing.
So I've tried looking for PRCM if it has a jtag gate/reset but I haven't
found it except the ones for R_PIO etc. I also have a doubt that s-jtag
is dedicated to AR100 co-processor, maybe?
Kind regards
--
Giulio Benetti
Benetti Engineering sas
^ permalink raw reply [flat|nested] 5+ messages in thread
* S-JTAG on A33
@ 2021-06-18 22:09 Giulio Benetti
0 siblings, 0 replies; 5+ messages in thread
From: Giulio Benetti @ 2021-06-18 22:09 UTC (permalink / raw)
To: linux-sunxi
Hello All,
have anyone accessed A33 jtag through S-JTAG(PL4-PL7) port? In u-boot
present in sd-card on SDC0 I've configured those pins as jtag mux(both
tried 2 and 3 as values), but while Trace32 answers on JTAG(PF port)
it doesn't answer on S-JTAG on PL port. I've double-checked with md.l
under u-boot and the values are correct, it seems something is missing.
So I've tried looking for PRCM if it has a JTAG gate/reset but I haven't
found it except the ones for R_PIO etc. I also have the doubt that
S-JTAG is dedicated to AR100 co-processor, maybe?
Kind regards
--
Giulio Benetti
Benetti Engineering sas
^ permalink raw reply [flat|nested] 5+ messages in thread
* s-jtag on A33
@ 2021-06-18 21:55 Giulio Benetti
2021-06-19 5:14 ` Icenowy Zheng
0 siblings, 1 reply; 5+ messages in thread
From: Giulio Benetti @ 2021-06-18 21:55 UTC (permalink / raw)
To: linux-sunxi
Hello All,
have anyone accessed A33 jtag through s-jtag(PL4-PL7) port? In u-boot
present in sd-card on SDC0 I've configured those pins as jtag mux(both
tried 2 and 3 as values), but while Trace32 answers on jtag(PF port)
here it doesn't answer. I've double-checked with md.l under u-boot and
the values are correct, it seems something is missing.
So I've tried looking for PRCM if it has a jtag gate/reset but I haven't
found it except the ones for R_PIO etc. I also have a doubt that s-jtag
is dedicated to AR100 co-processor, maybe?
Kind regards
--
Giulio Benetti
Benetti Engineering sas
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: s-jtag on A33
2021-06-18 21:55 s-jtag " Giulio Benetti
@ 2021-06-19 5:14 ` Icenowy Zheng
2021-06-19 8:47 ` Giulio Benetti
0 siblings, 1 reply; 5+ messages in thread
From: Icenowy Zheng @ 2021-06-19 5:14 UTC (permalink / raw)
To: Giulio Benetti, linux-sunxi
在 2021-06-18星期五的 23:55 +0200,Giulio Benetti写道:
> Hello All,
>
> present in sd-card on SDC0 I've configured those pins as jtag
> mux(both
> tried 2 and 3 as values), but while Trace32 answers on jtag(PF port)
> here it doesn't answer. I've double-checked with md.l under u-boot
> and
> the values are correct, it seems something is missing.
>
> So I've tried looking for PRCM if it has a jtag gate/reset but I
> haven't
> found it except the ones for R_PIO etc. I also have a doubt that s-
> jtag
> is dedicated to AR100 co-processor, maybe?
I think so.
> Kind regards
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: s-jtag on A33
2021-06-19 5:14 ` Icenowy Zheng
@ 2021-06-19 8:47 ` Giulio Benetti
0 siblings, 0 replies; 5+ messages in thread
From: Giulio Benetti @ 2021-06-19 8:47 UTC (permalink / raw)
To: Icenowy Zheng; +Cc: linux-sunxi
> Il giorno 19 giu 2021, alle ore 07:15, Icenowy Zheng <icenowy@aosc.io> ha scritto:
>
> 在 2021-06-18星期五的 23:55 +0200,Giulio Benetti写道:
>> Hello All,
>>
>> present in sd-card on SDC0 I've configured those pins as jtag
>> mux(both
>> tried 2 and 3 as values), but while Trace32 answers on jtag(PF port)
>> here it doesn't answer. I've double-checked with md.l under u-boot
>> and
>> the values are correct, it seems something is missing.
>>
>> So I've tried looking for PRCM if it has a jtag gate/reset but I
>> haven't
>> found it except the ones for R_PIO etc. I also have a doubt that s-
>> jtag
>> is dedicated to AR100 co-processor, maybe?
>
> I think so.
Thank you.
Also I’ve sent 3 times the same email because I couldn’t see it on google group but it’s not google group.
So sorry for the noise.
Giulio Benetti
>
>> Kind regards
>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-06-19 9:02 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2021-06-18 22:03 S-JTAG on A33 Giulio Benetti
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2021-06-18 22:09 Giulio Benetti
2021-06-18 21:55 s-jtag " Giulio Benetti
2021-06-19 5:14 ` Icenowy Zheng
2021-06-19 8:47 ` Giulio Benetti
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