• Tony Lindgren's avatar
    ARM: OMAP2+: Disable code that currently does not work with multiplaform · a62a6e98
    Tony Lindgren authored
    We still need to fix up few places for multiplatform support,
    but that can proceed separately. Fix the issue by making the
    problem drivers depends !ARCH_MULTIPLATFORM for now.
    
    The remaining pieces that are not multiplatform compatible
    for omap2+ SoCs are:
    
    1. Some drivers are using custom omap_dm_timer calls
    
    There are two drivers that are directly usign omap hardware
    timers for PWM and DSP clocking: drivers/media/rc/ir-rx51.c and
    drivers/staging/tidspbridge/core/dsp-clock.c. These can be
    fixed for multiplatform by allowing a minimal set of hardware
    timers to be accessed, and for some functionality by using the
    hrtimer framework.
    
    2. Hardware OMAP4_ERRATA_I688 needs to be fixed up
    
    This can't be enabled for multiplatform configurations in
    it's current form. It may be possible to fix it up to do
    instruction replacement early on during init. Luckily it
    looks like this errata does not seem to get hit with
    mainline kernel code alone at least currently.
    
    3. Legacy header needed for omap-sham.c
    
    Looks like it still needs mach/irqs.h for omap1 that
    does not exist for multiplatform systems. Just ifdef
    it for now.
    
    4. Mailbox is waiting to get moved to drivers
    
    Disable it for now to avoid adding a dependency to the
    mailbox patches.
    
    Cc: Timo Kokkonen <timo.t.kokkonen@iki.fi>
    Cc: Sean Young <sean@mess.org>
    Cc: "Víctor Manuel Jáquez Leal" <vjaquez@igalia.com>
    Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
    Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
    Cc: Omar Ramirez Luna <omar.ramirez@ti.com>
    Cc: Herbert Xu <herbert@gondor.apana.org.au>
    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
    Tested-by: default avatarEzequiel Garcia <ezequiel.garcia@free-electrons.com>
    [tony@atomide.com: updated to disable mailbox]
    Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
    a62a6e98
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