From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <390F0D6C.1631011D@embeddededge.com> Date: Tue, 02 May 2000 13:16:28 -0400 From: Dan Malek MIME-Version: 1.0 To: Christian Batt CC: wd@denx.de, linuxppc-embedded@lists.linuxppc.org Subject: Re: Hard Disk Drive on PCMCIA port References: <390EEFCC.9A66D452@sxb.bsf.alcatel.fr> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Christian Batt wrote: > We would like to know how it would be feasible to use a > Hard Disk Drive on such 8xx boards, by using a PCMCIA port. Yes....I have used the IBM Micro Drive in a PCMCIA adapter. Given my limited hardware knowledge, I believe there are enough signals on the PCMCIA that you could also use an IDE connector to a notebook or regular IDE/ATA disk drive. I don't know of anyone that has done this, as all of the designs I have seen have an external interface for such devices. > What are the other possibilities (PCI bridge ...) ? I can put you in contact with some talented hardware engineers that have connected damn near everything to a 8xx without using a PCI bridge. They use just a little bit of logic in some type of programmable logic device and out the other side is a bus of choice. A recent project included a notebook ATA disk drive with DMA.... > Is there allready some support in the current kernels (i.e 2.2.13 > or 2.3.99) for such HDD ? It's there. One of my higher priority (out of a zillion) projects is to get the 8xx PCMCIA integrated into the 2.2.14 and 2.3.99 kernels. I lost my IBM Micro Drive (had to send it back to the customer), but I can test with other devices I have. Right now, you can simply modify the code in m8xx_setup.c to properly map the PCMCIA and device registers, then add the absolute minimal set of configuration for IDE/ATA hard disk to the kernel. -- Dan ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/