renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-18 18:23:53 +08:00
Code

ARM: ARMv7-M: Allow the building of new kernel port

Browse Source 
This patch modifies the required Kconfig and Makefile files to allow the
building of kernel for Cortex-M3.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Jonathan Austin <jonathan.austin@arm.com>
Tested-by: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2013-03-21 21:02:37 +01:00
parent 19c4d593f0
commit 4477ca45fb
6 changed files with 33 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/Kconfig
View File

@ -9,7 +9,7 @@ config ARM
select BUILDTIME_EXTABLE_SORT if MMU
select CPU_PM if (SUSPEND || CPU_IDLE)
select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU
select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
@ -1685,7 +1685,7 @@ config SCHED_HRTICK
config THUMB2_KERNEL
bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
depends on CPU_V7 && !CPU_V6 && !CPU_V6K
depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
default y if CPU_THUMBONLY
select AEABI
select ARM_ASM_UNIFIED

2
arch/arm/Kconfig-nommu
View File

@ -28,7 +28,7 @@ config FLASH_SIZE
config PROCESSOR_ID
hex 'Hard wire the processor ID'
default 0x00007700
depends on !CPU_CP15
depends on !(CPU_CP15 || CPU_V7M)
help
If processor has no CP15 register, this processor ID is
used instead of the auto-probing which utilizes the register.

1
arch/arm/Makefile
View File

@ -59,6 +59,7 @@ comma = ,
# Note that GCC does not numerically define an architecture version
# macro, but instead defines a whole series of macros which makes
# testing for a specific architecture or later rather impossible.
arch-$(CONFIG_CPU_32v7M) :=-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m
arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
# Only override the compiler option if ARMv6. The ARMv6K extensions are

8
arch/arm/kernel/Makefile
View File

@ -15,7 +15,7 @@ CFLAGS_REMOVE_return_address.o = -pg
# Object file lists.
obj-y := elf.o entry-armv.o entry-common.o irq.o opcodes.o \
obj-y := elf.o entry-common.o irq.o opcodes.o \
process.o ptrace.o return_address.o sched_clock.o \
setup.o signal.o stacktrace.o sys_arm.o time.o traps.o
@ -23,6 +23,12 @@ obj-$(CONFIG_ATAGS) += atags_parse.o
obj-$(CONFIG_ATAGS_PROC) += atags_proc.o
obj-$(CONFIG_DEPRECATED_PARAM_STRUCT) += atags_compat.o
ifeq ($(CONFIG_CPU_V7M),y)
obj-y += entry-v7m.o
else
obj-y += entry-armv.o
endif
obj-$(CONFIG_OC_ETM) += etm.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
obj-$(CONFIG_ISA_DMA_API) += dma.o

21
arch/arm/mm/Kconfig
View File

@ -397,6 +397,15 @@ config CPU_V7
select CPU_PABRT_V7
select CPU_TLB_V7 if MMU
# ARMv7M
config CPU_V7M
bool
select CPU_32v7M
select CPU_ABRT_NOMMU
select CPU_CACHE_NOP
select CPU_PABRT_LEGACY
select CPU_THUMBONLY
config CPU_THUMBONLY
bool
# There are no CPUs available with MMU that don't implement an ARM ISA:
@ -441,6 +450,9 @@ config CPU_32v6K
config CPU_32v7
bool
config CPU_32v7M
bool
# The abort model
config CPU_ABRT_NOMMU
bool
@ -494,6 +506,9 @@ config CPU_CACHE_V6
config CPU_CACHE_V7
bool
config CPU_CACHE_NOP
bool
config CPU_CACHE_VIVT
bool
@ -616,7 +631,11 @@ config ARCH_DMA_ADDR_T_64BIT
config ARM_THUMB
bool "Support Thumb user binaries" if !CPU_THUMBONLY
depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_V6 || CPU_V6K || CPU_V7 || CPU_FEROCEON
depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || \
CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || \
CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_V6 || CPU_V6K || \
CPU_V7 || CPU_FEROCEON || CPU_V7M
default y
help
Say Y if you want to include kernel support for running user space

2
arch/arm/mm/Makefile
View File

@ -40,6 +40,7 @@ obj-$(CONFIG_CPU_CACHE_V4WB) += cache-v4wb.o
obj-$(CONFIG_CPU_CACHE_V6) += cache-v6.o
obj-$(CONFIG_CPU_CACHE_V7) += cache-v7.o
obj-$(CONFIG_CPU_CACHE_FA) += cache-fa.o
obj-$(CONFIG_CPU_CACHE_NOP) += cache-nop.o
AFLAGS_cache-v6.o :=-Wa,-march=armv6
AFLAGS_cache-v7.o :=-Wa,-march=armv7-a
@ -88,6 +89,7 @@ obj-$(CONFIG_CPU_FEROCEON) += proc-feroceon.o
obj-$(CONFIG_CPU_V6) += proc-v6.o
obj-$(CONFIG_CPU_V6K) += proc-v6.o
obj-$(CONFIG_CPU_V7) += proc-v7.o
obj-$(CONFIG_CPU_V7M) += proc-v7m.o
AFLAGS_proc-v6.o :=-Wa,-march=armv6
AFLAGS_proc-v7.o :=-Wa,-march=armv7-a