From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3B574C53.4050008@mvista.com> Date: Thu, 19 Jul 2001 14:08:35 -0700 From: Matthew Locke MIME-Version: 1.0 To: Grant Erickson Cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: PCI-to-PCMCIA/CardBus, Hardhat Linux 2.4.2, and the 405GP References: Content-Type: text/plain; charset=us-ascii; format=flowed Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Grant Erickson wrote: > I am attempting to get a SanDisk or IBM MicroDrive CardFlash interface > device working with a Walnut (IBM 405GP Rev. D) platforms and am using > MontaVista's 2.4.2-mvista_010329 Linux kernel to do so. The PCI-to-CardBus > adapter is a TI1420. > > Are there any tricks or pitfalls to get this working? I haven't been too > wildly successful yet using either compiled in or module-based drivers. I am not familiar with all the cache coherency issues with PCI in that kernel. It is best to upgrade to the latest 405 kernel from Montavista. > > Also, the PCMCIA-HOWTO seems fairly explicit that a PCMCIA IDE/ATA drive > such as the IBM MicroDrive or SanDisk cannot be used as a boot device (but > can be used as a root device w/ initrd). Has anyone out there done > otherwise (i.e. built-in drivers, no initrd, w/ a simple root=/dev/hda)? Yes with a minor hack to the kernel pcmcia ide-cs driver I believe you can get it to work. The problem is the ide-cs waits for the Cardmgr daemon to start before it will recognize the card. > > ANY insight would be greatly appreciated. > I believe there are problems with kernel PCMCIA in hhl-2.4.2. We actually only support the pcmcia-cs package. Its probably best to start w/ the pcmcia-cs package and get that to work. If it doesn't work, you probably are running into the cache issues. The pcmcia-cs package, the Microdrive, and that TI controller all work on other PPC platforms. If you are a Montavista customer, send the exact error messages you are getting to your support contact. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/