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arc: add selection of endianess in Kconfig

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This change allows to keep board description clean and minimalistic.
This is especially helpful if one board may house different CPUs with
different features.

It is applicable to both FPGA-based boards or those that have CPUs
mounted on interchnagable daughter-boards.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
This commit is contained in:
Alexey Brodkin
2015-02-03 13:58:14 +03:00
parent 205e7a7b77
commit 1f9ad44546
6 changed files with 11 additions and 104 deletions
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9
arch/arc/Kconfig
View File

@@ -47,6 +47,12 @@ config ARC_MMU_V3
endchoice
config CPU_BIG_ENDIAN
bool "Enable Big Endian Mode"
default n
help
Build kernel for Big Endian Mode of ARC CPU
config SYS_ICACHE_OFF
bool "Do not use Instruction Cache"
default n
@@ -75,9 +81,6 @@ config TARGET_TB100
config TARGET_ARCANGEL4
bool "Support arcangel4"
config TARGET_ARCANGEL4_BE
bool "Support arcangel4-be"
config TARGET_AXS101
bool "Support axs101"

4
arch/arc/config.mk
View File

@@ -4,8 +4,10 @@
# SPDX-License-Identifier: GPL-2.0+
#
ifndef CONFIG_SYS_BIG_ENDIAN
ifndef CONFIG_CPU_BIG_ENDIAN
CONFIG_SYS_LITTLE_ENDIAN = 1
else
CONFIG_SYS_BIG_ENDIAN = 1
endif
ifdef CONFIG_SYS_LITTLE_ENDIAN