From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Sun, 1 Jul 2012 11:59:35 +0100 Subject: [PATCH V2 5/6] x86: add CONFIG_ARM_AMBA, selected by STA2X11 In-Reply-To: <20120701104401.GA4352@mail.gnudd.com> References: <4FECB95D.7010200@zytor.com> <20120701104401.GA4352@mail.gnudd.com> Message-ID: <20120701105934.GD16319@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sun, Jul 01, 2012 at 12:44:01PM +0200, Alessandro Rubini wrote: > How should I address the problem? (original code, published on > sourceforge was simply replicating a number of amba drivers into pci > drivers, but I don't think massive code duplication is ever sensible, > thus I preferred to reuse the existing drivers). I think the answer is... those primecell drivers need fixing in some way. Re-defining CS, DS and ES in drivers is rather silly given that they're x86 segment register names - so if PL330 can be fixed to make its names more specific, that sorts it out. As for PL08x, which depends on asm/hardware/pl080.h, I think that's going to have to be a config dependency - it would be nice to move that header into drivers/dma and make it private to the amba-pl08x driver, but we have definitions in there which platforms supply to the pl08x driver via platform data. I'd rather not stuff the register definitions into include/linux/platform_data/... Note also that hpa has only reported the first errors he encountered, so there may be more, and that's somehting which needs checking.