Sender: Larry Finger <larry.finger@gmail.com>
Message-ID: <e9f8501f-ede0-4d38-6585-d3dc2469d3fe@lwfinger.net>
Date:   Mon, 27 Feb 2023 15:09:11 -0600
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.8.0
Subject: Re: [RFC 0/6] pcmcia: separate 16-bit support from cardbus
Content-Language: en-US
To:     Arnd Bergmann <arnd@arndb.de>, Arnd Bergmann <arnd@kernel.org>,
        Dominik Brodowski <linux@dominikbrodowski.net>,
        linux-kernel@vger.kernel.org
Cc:     Bjorn Helgaas <bhelgaas@google.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Hartley Sweeten <hsweeten@visionengravers.com>,
        Ian Abbott <abbotti@mev.co.uk>,
        Jakub Kicinski <kuba@kernel.org>,
        Kevin Cernekee <cernekee@gmail.com>,
        Lukas Wunner <lukas@wunner.de>,
        Manuel Lauss <manuel.lauss@gmail.com>,
        Oliver Hartkopp <socketcan@hartkopp.net>,
        Olof Johansson <olof@lixom.net>,
        Robert Jarzmik <robert.jarzmik@free.fr>,
        YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>,
        bcm-kernel-feedback-list@broadcom.com,
        linux-arm-kernel@lists.infradead.org, linux-can@vger.kernel.org,
        linux-mips@vger.kernel.org, linux-pci@vger.kernel.org,
        linux-wireless@vger.kernel.org, Netdev <netdev@vger.kernel.org>
References: <20230227133457.431729-1-arnd@kernel.org>
 <3d8f28d7-78df-5276-612c-85b5262a987a@lwfinger.net>
 <c17bff4e-031e-4101-8564-51f6298b1c68@app.fastmail.com>
From:   Larry Finger <Larry.Finger@lwfinger.net>
In-Reply-To: <c17bff4e-031e-4101-8564-51f6298b1c68@app.fastmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 2/27/23 14:38, Arnd Bergmann wrote:
> Is this the Cardbus or the PCMCIA version of the BCM4306 device? As far
> as I understand this particular chip can be wired up either way inside
> of the card, and the PowerBook G4 supports both types of devices.
> 
> If it's the PCMCIA version, then dropping support for it was the idea
> of the patch series that we can debate, but if it was the Cardbus version
> that broke, then this was likely a bug I introduced by accident.

Arnd,

The BCM4306 is internal, and wired directly to the PCI bus. My understanding is 
that the BCM4318 is a cardbus device. It definitely shows up in an lspci scan.

Larry