From: Giulio Benetti <giulio.benetti@benettiengineering.com>
To: linux-sunxi@lists.linux.dev
Subject: S-JTAG on A33
Date: Sat, 19 Jun 2021 00:09:00 +0200 [thread overview]
Message-ID: <39ce90de-a17f-272b-2915-c9c50780a859@benettiengineering.com> (raw)
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
next reply other threads:[~2021-06-18 22:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-18 22:09 Giulio Benetti [this message]
-- strict thread matches above, loose matches on Subject: below --
2021-06-18 22:03 S-JTAG on A33 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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