freebsd-dev/sys/conf/options.arm
Ian Lepore 970775a5d2 Add an arm option, ARM_DEVICE_MULTIPASS, used to opt-in to multi-pass
device attachment on arm platforms.  If this is defined, nexus attaches
early in BUS_PASS_BUS, and other busses and devices attach later, in the
pass number they are set up for.  Without it defined, nexus attaches in
BUS_PASS_DEFAULT and thus so does everything else, which is status quo.

Arm platforms which use FDT data to enumerate devices have been relying
on devices being attached in the exact order they're listed in the dts
source file.  That's one of things currently preventing us from using
vendor-supplied fdt data (because then we don't control the order of the
devices in the data).  Multi-pass attachment can go a long way towards
solving that problem by ensuring things like clock and interrupt drivers
are attached before the more mundane devices that need them.

The long-term goal is to have all arm fdt-based platforms using multipass.
This option is a bridge to that, letting us enable it selectively as
platforms are converted and tested (the alternative being to just throw
a big switch and try to fight fires as they're reported).
2014-08-05 19:06:45 +00:00

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#$FreeBSD$
ARM9_CACHE_WRITE_THROUGH opt_global.h
ARM_CACHE_LOCK_ENABLE opt_global.h
ARM_DEVICE_MULTIPASS opt_global.h
ARM_KERN_DIRECTMAP opt_vm.h
ARM_L2_PIPT opt_global.h
ARM_MANY_BOARD opt_global.h
ARM_WANT_TP_ADDRESS opt_global.h
COUNTS_PER_SEC opt_timer.h
CPU_ARM9 opt_global.h
CPU_ARM9E opt_global.h
CPU_ARM1136 opt_global.h
CPU_ARM1176 opt_global.h
CPU_CORTEXA opt_global.h
CPU_KRAIT opt_global.h
CPU_FA526 opt_global.h
CPU_FA626TE opt_global.h
CPU_MV_PJ4B opt_global.h
CPU_XSCALE_80219 opt_global.h
CPU_XSCALE_80321 opt_global.h
CPU_XSCALE_81342 opt_global.h
CPU_XSCALE_IXP425 opt_global.h
CPU_XSCALE_IXP435 opt_global.h
CPU_XSCALE_PXA2X0 opt_global.h
FLASHADDR opt_global.h
IPI_IRQ_START opt_smp.h
IPI_IRQ_END opt_smp.h
FREEBSD_BOOT_LOADER opt_global.h
IXP4XX_FLASH_SIZE opt_global.h
KERNPHYSADDR opt_global.h
KERNVIRTADDR opt_global.h
LINUX_BOOT_ABI opt_global.h
LOADERRAMADDR opt_global.h
PHYSADDR opt_global.h
PLATFORM opt_global.h
SOCDEV_PA opt_global.h
SOCDEV_VA opt_global.h
PV_STATS opt_pmap.h
QEMU_WORKAROUNDS opt_global.h
SOC_MV_ARMADAXP opt_global.h
SOC_MV_DISCOVERY opt_global.h
SOC_MV_DOVE opt_global.h
SOC_MV_FREY opt_global.h
SOC_MV_KIRKWOOD opt_global.h
SOC_MV_LOKIPLUS opt_global.h
SOC_MV_ORION opt_global.h
SOC_OMAP3 opt_global.h
SOC_OMAP4 opt_global.h
SOC_TI_AM335X opt_global.h
SOC_TEGRA2 opt_global.h
XSCALE_CACHE_READ_WRITE_ALLOCATE opt_global.h
XSACLE_DISABLE_CCNT opt_timer.h
VERBOSE_INIT_ARM opt_global.h
VM_MAXUSER_ADDRESS opt_global.h
AT91_ATE_USE_RMII opt_at91.h
AT91_MCI_ALLOW_OVERCLOCK opt_at91.h
AT91_MCI_HAS_4WIRE opt_at91.h
AT91_MCI_SLOT_B opt_at91.h
GFB_DEBUG opt_gfb.h
GFB_NO_FONT_LOADING opt_gfb.h
GFB_NO_MODE_CHANGE opt_gfb.h
AT91C_MAIN_CLOCK opt_at91.h
VFP opt_global.h