I forgot to mention: this is patch binding. The actual objects I'd
remove would be:
/kernel/drv/sparcv9/sdcard
/kernel/drv/sparcv9/sdhost
/kernel/misc/sparcv9/sda
These are contained in the SUNWsdcard package, which would also be
removed from SPARC.
- Garrett
Garrett D'Amore - sun microsystems wrote:
> I'm filing the following case to clean up some software which _probably_
> should have been removed along with the SPARCLE support (PSARC 2008/538).
> In theory, the software could be useful to other SPARC platforms, but
> no such platforms exist today, and none are anticipated, which is why
> I'm filing this as a self-review. If anyone believes it deserves more
> discussion, please speak up and I will happily promote the case to a
> fast track.
>
> - Garrett
>
> Template Version: @(#)sac_nextcase 1.68 02/23/09 SMI
> This information is Copyright 2009 Sun Microsystems
> 1. Introduction
> 1.1. Project/Component Working Name:
> Remove SDcard support on SPARC
> 1.2. Name of Document Author/Supplier:
> Author: Garrett D'Amore
> 1.3 Date of This Document:
> 22 October, 2009
> 4. Technical Description
>
> Problem
> -------
>
> With the removal of the "wbsd" driver (as part of PSARC 2009/538 -- the
> Tadpole
> SPARCLE EOF), it turns out that there is probably no other implementation of
> SDcard in use on SPARC. (Exception: USB media adapters, but they don't use
> the SDcard stack discussed here.)
>
> Today we deliver the architecture neutral "sdhost" driver, which supports
> a PCI based controller. While in theory this could mean that someone could
> install a PCI card (or build a motherboard) with one of these devices on
> it, we have never seen such a PCI card. (Presumably some kind of evaluation
> boards must exist, but we don't believe they've ever been generally available
> on the market. We've certainly never seen one before.)
>
> There are no other SDcard host adapter drivers (now that "wbsd" has been
> removed.) As a result its impossible to sustain the existing code on SPARC,
> since we can't even test it.
>
> We therefore propose to remove the entire SDcard stack from the SPARC
> delivery. If a need were to arise, we could easily restore this
> functionality, although we believe it is unlikely that there will ever
> be a need for either add-in card with SDcard support, or for SPARC
> motherboards with onboard SDcard media slots.
>
> Note that this does NOT affect the USB based adapters, which only support
> the SDcard storage devices (not SDIO), and which do not use the SDcard
> stack. (They instead emulate USB mass storage devices.)
>
> As this will not affect any current SPARC customers, we do not believe any
> notification is necessary.
>
>
> 6. Resources and Schedule
> 6.4. Steering Committee requested information
> 6.4.1. Consolidation C-team Name:
> ON
> 6.5. ARC review type: Automatic
> 6.6. ARC Exposure: open
>
>
