[U-Boot] [PATCH 1/2] arm: Add Kconfig symbols used for Linux asm compatibility

Phil Edworthy phil.edworthy at renesas.com
Thu Jun 1 06:33:28 UTC 2017


Rather than change asm files that come from Linux, add the symbols
to Kconfig. Since one of the symbols is for thumb2 builds, make
CPU_V7M always select them.

Signed-off-by: Phil Edworthy <phil.edworthy at renesas.com>
---
 arch/arm/Kconfig      | 10 ++++++++++
 arch/arm/lib/Makefile |  2 --
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2a3a36e..2793651 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -19,6 +19,15 @@ config HAS_VBAR
 config HAS_THUMB2
 	bool
 
+# Used for compatibility with asm files copied from the kernel
+config ARM_ASM_UNIFIED
+	bool
+	default y
+
+# Used for compatibility with asm files copied from the kernel
+config THUMB2_KERNEL
+	bool
+
 # If set, the workarounds for these ARM errata are applied early during U-Boot
 # startup. Note that in general these options force the workarounds to be
 # applied; no CPU-type/version detection exists, unlike the similar options in
@@ -128,6 +137,7 @@ config CPU_V7
 config CPU_V7M
 	bool
 	select HAS_THUMB2
+	select THUMB2_KERNEL
 	select SYS_CACHE_SHIFT_5
 
 config CPU_PXA
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index f162c14..6e1c436 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -72,8 +72,6 @@ ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
 extra-y	+= eabi_compat.o
 endif
 
-asflags-y += -DCONFIG_ARM_ASM_UNIFIED
-
 # some files can only build in ARM or THUMB2, not THUMB1
 
 ifdef CONFIG_$(SPL_)SYS_THUMB_BUILD
-- 
2.7.4



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