default 16
config ARCH_MULTIPLATFORM
- def_bool MMU && !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
+ bool "Require kernel to be portable to multiple machines" if EXPERT
+ depends on MMU && !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
+ default y
+ help
+ In general, all Arm machines can be supported in a single
+ kernel image, covering either Armv4/v5 or Armv6/v7.
+
+ However, some configuration options require hardcoding machine
+ specific physical addresses or enable errata workarounds that may
+ break other machines.
+
+ Selecting N here allows using those options, including
+ DEBUG_UNCOMPRESS, XIP_KERNEL and ZBOOT_ROM. If unsure, say Y.
menu "Platform selection"
depends on MMU
config CMDLINE_FORCE
bool "Always use the default kernel command string"
+ depends on !ARCH_MULTIPLATFORM
help
Always use the default kernel command string, even if the boot
loader passes other arguments to the kernel.
config DEBUG_UNCOMPRESS
bool "Enable decompressor debugging via DEBUG_LL output"
+ depends on !ARCH_MULTIPLATFORM
depends on !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
(!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
{
const struct machine_desc *mdesc, *mdesc_best = NULL;
-#if defined(CONFIG_ARCH_MULTIPLATFORM) || defined(CONFIG_ARM_SINGLE_ARMV7M)
DT_MACHINE_START(GENERIC_DT, "Generic DT based system")
.l2c_aux_val = 0x0,
.l2c_aux_mask = ~0x0,
MACHINE_END
mdesc_best = &__mach_desc_GENERIC_DT;
-#endif
if (!dt_virt || !early_init_dt_verify(dt_virt))
return NULL;
# SPDX-License-Identifier: GPL-2.0
-ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/arch/arm/plat-orion/include
+ccflags-y := -I$(srctree)/arch/arm/plat-orion/include
obj-y += common.o
obj-$(CONFIG_DOVE_LEGACY) += irq.o mpp.o
# SPDX-License-Identifier: GPL-2.0
-ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/arch/arm/plat-orion/include
+ccflags-y := -I$(srctree)/arch/arm/plat-orion/include
obj-y += common.o mpp.o irq.o pcie.o
obj-$(CONFIG_MACH_DB78X00_BP) += db78x00-bp-setup.o
# SPDX-License-Identifier: GPL-2.0
-ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/arch/arm/plat-orion/include
+ccflags-y := -I$(srctree)/arch/arm/plat-orion/include
AFLAGS_coherency_ll.o := -Wa,-march=armv7-a
CFLAGS_pmsu.o := -march=armv7-a
# SPDX-License-Identifier: GPL-2.0
-ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/arch/arm/plat-orion/include
+ccflags-y := -I$(srctree)/arch/arm/plat-orion/include
obj-y += common.o pci.o irq.o mpp.o
obj-$(CONFIG_MACH_DB88F5281) += db88f5281-setup.o