| Message ID | 1368530845-7415-3-git-send-email-jonathan.austin@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, 2013-05-14 at 12:27 +0100, Jonathan Austin wrote: > Since 617276307cd4c ("ARM: vexpress: convert to multi-platform") it has been > impossible to select ARCH_VEXPRESS without ARCH_MULTIPLATFORM. > > ARCH_MULTIPLATFORM doesn't make sense for NOMMU targets, not least because > of the need to hard-code the memory map. However, it should still be > possible to run NOMMU kernels on top of the Versatile Express by selecting > it as the only platform. > > This patch creates a shim ARCH_VEXPRESS_NOMMU config option in the 'choice' > for "ARM system type" to make this possible again. > > Signed-off-by: Jonathan Austin <jonathan.austin@arm.com> > Signed-off-by: Will Deacon <will.deacon@arm.com> > Acked-by: Nicolas Pitre <nico@fluxnic.net> > Acked-by: Arnd Bergmann <arnd@arndb.de> > CC: Pawel Moll <pawel.moll@arm.com> Acked-by: Pawel Moll <pawel.moll@arm.com> Thanks! Pawel
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 408eb33..541d90e 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -350,6 +350,23 @@ config ARCH_VERSATILE help This enables support for ARM Ltd Versatile board. +config ARCH_VEXPRESS_NOMMU + bool "ARM Ltd. Versatile Express family for NOMMU" + depends on !MMU + select ARCH_VEXPRESS + select SPARSE_IRQ + select ARM_GENERIC_HEADERS + help + This option enables support for systems using Cortex processor based + ARM core and logic (FPGA) tiles on the Versatile Express motherboard, + in configurations WITHOUT an MMU. You must boot using a Flattened + Device Tree - the traditional ATAGs boot method is not usable with + this configuration. + + If your system has an MMU and you want to make use of it, you + should instead choose to build a multiplatform kernel and + select ARCH_VEXPRESS + config ARCH_AT91 bool "Atmel AT91" select ARCH_REQUIRE_GPIOLIB
Since 617276307cd4c ("ARM: vexpress: convert to multi-platform") it has been impossible to select ARCH_VEXPRESS without ARCH_MULTIPLATFORM. ARCH_MULTIPLATFORM doesn't make sense for NOMMU targets, not least because of the need to hard-code the memory map. However, it should still be possible to run NOMMU kernels on top of the Versatile Express by selecting it as the only platform. This patch creates a shim ARCH_VEXPRESS_NOMMU config option in the 'choice' for "ARM system type" to make this possible again. Signed-off-by: Jonathan Austin <jonathan.austin@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Acked-by: Nicolas Pitre <nico@fluxnic.net> Acked-by: Arnd Bergmann <arnd@arndb.de> CC: Pawel Moll <pawel.moll@arm.com> --- arch/arm/Kconfig | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)