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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-08-10 05:23:45 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-08-11 05:23:49 -0400
commitc1becedc8871645278832fabdc6fe138082a495b (patch)
treee02970dc6d041680d36cd570e9dbca5cf637fbe7 /arch/arm/Kconfig
parent4eb979d4d182c67acb6272a3a0244bf0027cf16b (diff)
ARM: enable ARM_PATCH_PHYS_VIRT by default
Enable virtual to physical translation patching by default in all kernels. Hide the option behind EMBEDDED. This can still be turned off if people desire, and they know what they're doing, to shrink the size of the kernel to a minimum. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/Kconfig')
-rw-r--r--arch/arm/Kconfig8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 5ebc5d922ea1..8882a535cf44 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -195,7 +195,8 @@ config VECTORS_BASE
195 The base address of exception vectors. 195 The base address of exception vectors.
196 196
197config ARM_PATCH_PHYS_VIRT 197config ARM_PATCH_PHYS_VIRT
198 bool "Patch physical to virtual translations at runtime" 198 bool "Patch physical to virtual translations at runtime" if EMBEDDED
199 default y
199 depends on !XIP_KERNEL && MMU 200 depends on !XIP_KERNEL && MMU
200 depends on !ARCH_REALVIEW || !SPARSEMEM 201 depends on !ARCH_REALVIEW || !SPARSEMEM
201 help 202 help
@@ -207,6 +208,10 @@ config ARM_PATCH_PHYS_VIRT
207 of physical memory is at a 16MB boundary, or theoretically 64K 208 of physical memory is at a 16MB boundary, or theoretically 64K
208 for the MSM machine class. 209 for the MSM machine class.
209 210
211 Only disable this option if you know that you do not require
212 this feature (eg, building a kernel for a single machine) and
213 you need to shrink the kernel to the minimal size.
214
210config ARM_PATCH_PHYS_VIRT_16BIT 215config ARM_PATCH_PHYS_VIRT_16BIT
211 def_bool y 216 def_bool y
212 depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM 217 depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
@@ -301,7 +306,6 @@ config ARCH_AT91
301 select ARCH_REQUIRE_GPIOLIB 306 select ARCH_REQUIRE_GPIOLIB
302 select HAVE_CLK 307 select HAVE_CLK
303 select CLKDEV_LOOKUP 308 select CLKDEV_LOOKUP
304 select ARM_PATCH_PHYS_VIRT if MMU
305 help 309 help
306 This enables support for systems based on the Atmel AT91RM9200, 310 This enables support for systems based on the Atmel AT91RM9200,
307 AT91SAM9 and AT91CAP9 processors. 311 AT91SAM9 and AT91CAP9 processors.