From: Paolo Pisati <p.pisati@gmail.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Paolo Pisati <p.pisati@gmail.com>,
linux-m68k <linux-m68k@vger.kernel.org>,
Kars de Jong <jongk@linux-m68k.org>
Subject: Re: [PATCH 0/1] [RFC] Commodore's Gayle pcmcia driver
Date: Thu, 16 Jan 2025 17:37:06 +0100 [thread overview]
Message-ID: <Z4k1sj8pP6KRUoXq@amaterasu.local> (raw)
In-Reply-To: <CAMuHMdUi62FctEsB+k5m7Ue+WZtU_iQ=ppEhBmM1hSAAZJc2SA@mail.gmail.com>
On Thu, Jan 16, 2025 at 11:37:22AM +0100, Geert Uytterhoeven wrote:
> >
> > i tried ISA_SEX to do the be->le flipping but it broke all drivers: it seems
> > like isa_insw()/isa_outsw()/isa_insl()/isa_outsl() must retain the host
> > endianess.
>
> Oh, I missed you're only overriding the non-repeating variants.
>
> So ISA I/O registers are little endian, while ISA FIFO registers are
> native endian, as they operate on the raw data stored somewhere else
> (network, disk, ...)?
According to NetBSD[1], word access to the PCMCIA bus should be le but Kars
didn't modify isa_insw()/isa_outsw()/isa_insl()/isa_outsl(), so that was my
original assumption, but i'm not 100% sure here.
1: https://github.com/NetBSD/src/commit/07364bf8b04818675b3a1a1a23424be8c90ddfa2
--
bye,
p.
prev parent reply other threads:[~2025-01-16 16:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-12 15:05 [PATCH 0/1] [RFC] Commodore's Gayle pcmcia driver Paolo Pisati
2025-01-12 15:05 ` [PATCH 1/1] pcmcia: socket driver for Commodore's Gayle Paolo Pisati
2025-01-13 8:04 ` [PATCH 0/1] [RFC] Commodore's Gayle pcmcia driver Geert Uytterhoeven
2025-01-16 10:26 ` Paolo Pisati
2025-01-16 10:37 ` Geert Uytterhoeven
2025-01-16 16:37 ` Paolo Pisati [this message]
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