lkml.org 
[lkml]   [2017]   [Jun]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 2/3] arch/microblaze: Add choice for endianness and update Makefile
Date
microblaze architectures can be configured for either little or
big endian formats. Add a choice option for the user to select the
correct endian format(default to big endian).

Also update the Makefile so toolchain can compile for the format
it is configured for.

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/microblaze/Kconfig | 16 ++++++++++++++++
arch/microblaze/Makefile | 2 ++
2 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 85885a5..74aa5de 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -35,6 +35,22 @@ config MICROBLAZE
select VIRT_TO_BUS
select CPU_NO_EFFICIENT_FFS

+# Endianness selection
+choice
+ prompt "Endianness selection"
+ default CPU_BIG_ENDIAN
+ help
+ microblaze architectures can be configured for either little or
+ big endian formats. Be sure to select the appropriate mode.
+
+config CPU_BIG_ENDIAN
+ bool "Big endian"
+
+config CPU_LITTLE_ENDIAN
+ bool "Little endian"
+
+endchoice
+
config SWAP
def_bool n

diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index 740f2b8..1f6c486 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -35,6 +35,8 @@ endif
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
+CPUFLAGS-$(CONFIG_BIG_ENDIAN) += -mbig-endian
+CPUFLAGS-$(CONFIG_LITTLE_ENDIAN) += -mlittle-endian

CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))

--
1.7.1
\
 
 \ /
  Last update: 2017-06-13 00:12    [W:0.054 / U:0.120 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site