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ARM: introduce ARM_SINGLE_ARMV7M for ARMv7-M platforms

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This introduces a new top level config symbol ARM_SINGLE_ARMV7M
for non-MMU, ARMv7-M platforms. It also support multiple ARMv7-M
platforms in one kernel image since the cores share the same
basic memory layout and interrupt controller. However, this works
only if the combined platforms also have a similar (main) memory
layout.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Stefan Agner 2015-05-20 00:03:51 +02:00 committed by Arnd Bergmann
parent 7505f0428f
commit 9c77bc438f
2 changed files with 16 additions and 2 deletions
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13
arch/arm/Kconfig
View File

@ -329,6 +329,19 @@ config ARCH_MULTIPLATFORM
select SPARSE_IRQ
select USE_OF
config ARM_SINGLE_ARMV7M
bool "ARMv7-M based platforms (Cortex-M0/M3/M4)"
depends on !MMU
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARM_NVIC
select CLKSRC_OF
select COMMON_CLK
select CPU_V7M
select GENERIC_CLOCKEVENTS
select NO_IOPORT_MAP
select SPARSE_IRQ
select USE_OF
config ARCH_REALVIEW
bool "ARM Ltd. RealView family"
select ARCH_WANT_OPTIONAL_GPIOLIB

5
arch/arm/Kconfig.debug
View File

@ -1579,7 +1579,7 @@ config DEBUG_UART_8250_FLOW_CONTROL
config DEBUG_UNCOMPRESS
bool
depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG
depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
(!DEBUG_TEGRA_UART || !ZBOOT_ROM)
help
@ -1597,7 +1597,8 @@ config UNCOMPRESS_INCLUDE
string
default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
PLAT_SAMSUNG || ARCH_EFM32 || \
ARCH_SHMOBILE_LEGACY || ARCH_LPC18XX
ARCH_SHMOBILE_LEGACY || \
ARCH_LPC18XX || ARM_SINGLE_ARMV7M
default "mach/uncompress.h"
config EARLY_PRINTK