From: Sean Anderson <seanga2@gmail.com>
To: Mohammed Billoo <mab@mab-labs.com>
Cc: linux-riscv@lists.infradead.org
Subject: Re: RISC-V testing needs on HW?
Date: Tue, 1 Sep 2020 10:16:03 -0400 [thread overview]
Message-ID: <ac581b64-601a-9766-2a9e-21d877407780@gmail.com> (raw)
In-Reply-To: <CALkjhPr-wXSROT_bB2DA4N1jJT9B64_g9Q9xOHvckmeZYWm5Ng@mail.gmail.com>
On 9/1/20 10:14 AM, Mohammed Billoo wrote:
> On Tue, Sep 1, 2020 at 6:42 AM Sean Anderson <seanga2@gmail.com> wrote:
>> Can you test what happens when accessing ai ram (0x40600000-0x407FFFFF
>> and 0x80600000-0x807FFFFF)? I have two boards where this appears to lock
>> up the bus, but I have also heard it reported that accessing this area
>> of ram works fine. If it works for you, can you please also report what
>> your clock and reset settings are? Those should be controlled by the
>> syscon device at 0x50440000.
>>
>> The ai ram takes up 2M, which is a lot of memory on a board with 8M
>> total. It would be great to be able to use it when the KPU is not in
>> use, but I have been unable to access it correctly. I have been testing
>> mostly with U-Boot, but I experience the same problems when booting
>> Linux.
>>
>> --Sean
>
> Sure, is this on the latest master or the 5.8 release?
Doesn't matter to me.
--Sean
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next prev parent reply other threads:[~2020-09-01 14:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-24 14:20 RISC-V testing needs on HW? Mohammed Billoo
2020-09-01 10:42 ` Sean Anderson
2020-09-01 14:14 ` Mohammed Billoo
2020-09-01 14:16 ` Sean Anderson [this message]
2020-09-01 21:08 ` Mohammed Billoo
2020-09-29 23:41 ` Sean Anderson
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