Commit a62a6e98 authored Jan 11, 2013 by Tony Lindgren

ARM: OMAP2+: Disable code that currently does not work with multiplaform



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: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
[tony@atomide.com: updated to disable mailbox]
Signed-off-by: Tony Lindgren <tony@atomide.com>

parent 808b7e07

arch/arm/mach-omap2/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -397,7 +397,7 @@ config OMAP3_SDRC_AC_TIMING

		config OMAP4_ERRATA_I688
		bool "OMAP4 errata: Async Bridge Corruption"
		depends on ARCH_OMAP4
		depends on ARCH_OMAP4 && !ARCH_MULTIPLATFORM
		select ARCH_HAS_BARRIERS
		help
		If a data is stalled inside asynchronous bridge because of back

arch/arm/plat-omap/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -118,7 +118,7 @@ config OMAP_MUX_WARNINGS

		config OMAP_MBOX_FWK
		tristate "Mailbox framework support"
		depends on ARCH_OMAP
		depends on ARCH_OMAP && !ARCH_MULTIPLATFORM
		help
		Say Y here if you want to use OMAP Mailbox framework support for
		DSP, IVA1.0 and IVA2 in OMAP1/2/3.

drivers/crypto/omap-sham.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -38,7 +38,10 @@
		#include <crypto/internal/hash.h>

		#include <linux/omap-dma.h>

		#ifdef CONFIG_ARCH_OMAP1
		#include <mach/irqs.h>
		#endif

		#define SHA_REG_DIGEST(x) (0x00 + ((x) * 0x04))
		#define SHA_REG_DIN(x) (0x1C + ((x) * 0x04))

drivers/media/rc/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -291,7 +291,7 @@ config IR_TTUSBIR

		config IR_RX51
		tristate "Nokia N900 IR transmitter diode"
		depends on OMAP_DM_TIMER && LIRC
		depends on OMAP_DM_TIMER && LIRC && !ARCH_MULTIPLATFORM
		---help---
		Say Y or M here if you want to enable support for the IR
		transmitter diode built in the Nokia N900 (RX51) device.

drivers/staging/tidspbridge/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -4,7 +4,7 @@

		menuconfig TIDSPBRIDGE
		tristate "DSP Bridge driver"
		depends on ARCH_OMAP3
		depends on ARCH_OMAP3 && !ARCH_MULTIPLATFORM
		select OMAP_MBOX_FWK
		help
		DSP/BIOS Bridge is designed for platforms that contain a GPP and

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