[PATCH 1/4] arm: Kconfig option for ARCH_MSM_SCORPIONMP

[Russell King - ARM Linux]

On Thu, Sep 09, 2010 at 12:58:06PM -0700, Daniel Walker wrote:
> From: Steve Muckle <smuckle at codeaurora.org>
> 
> ScorpionMP is a configuration of Scorpion processors. It supports local
> timers.

Beware - things have changed around here - relevant hunks from my
devel branch:

@@ -1142,13 +1145,13 @@ source "kernel/time/Kconfig"

 config SMP
        bool "Symmetric Multi-Processing (EXPERIMENTAL)"
-       depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
-                MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
-                ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
+       depends on EXPERIMENTAL
        depends on GENERIC_CLOCKEVENTS
+       depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
+                MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
+                ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4        select USE_GENERIC_SMP_HELPERS
-       select HAVE_ARM_SCU if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 ||\
-                ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
+       select HAVE_ARM_SCU
        help
          This enables support for systems with more than one CPU. If you have
          a system with only one CPU, like most personal computers, say N. If
@@ -1216,12 +1232,9 @@ config HOTPLUG_CPU

 config LOCAL_TIMERS
        bool "Use local timer interrupts"
-       depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
-               REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
-               ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)+       depends on SMP
        default y
-       select HAVE_ARM_TWD if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 || \
-               ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS
+       select HAVE_ARM_TWD
        help
          Enable support for local timers on SMP platforms, rather then the
          legacy IPI broadcast method.  Local timers allows the system

Basically, everyone who was supporting SMP also supported local timers,
TWD and SCU, so having the big long lists of dependencies was becoming
silly.

If anyone (ever) creates a SMP implementation not using ARMs TWD/GIC/SCU,
then we can see about changing the way we handle the support for these.