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sandbox: Convert SANDBOX_BITS_PER_LONG to Kconfig

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Convert SANDBOX_BITS_PER_LONG to Kconfig and assign it a correct
number depending on which host we are going to build and run.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2017-08-01 16:33:34 -07:00 committed by Simon Glass
parent 98cff66027
commit 226b50bbd8
3 changed files with 8 additions and 5 deletions
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5
arch/sandbox/Kconfig
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@ -35,4 +35,9 @@ config SANDBOX_64BIT
endchoice
config SANDBOX_BITS_PER_LONG
int
default 32 if SANDBOX_32BIT
default 64 if SANDBOX_64BIT
endmenu

7
board/sandbox/README.sandbox
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@ -24,6 +24,9 @@ single board in board/sandbox.
CONFIG_SANDBOX_BIG_ENDIAN should be defined when running on big-endian
machines.
By default sandbox builds and runs on 64-bit hosts. If you are going to build
and run sandbox on a 32-bit host, select CONFIG_SANDBOX_32BIT.
Note that standalone/API support is not available at present.
@ -44,10 +47,6 @@ Note:
make sandbox_defconfig all NO_SDL=1
./u-boot
If you are building on a 32-bit machine you may get errors from __ffs.h
about shifting more than the machine word size. Edit the config file
include/configs/sandbox.h and change CONFIG_SANDBOX_BITS_PER_LONG to 32.
U-Boot will start on your computer, showing a sandbox emulation of the serial
console:

1
scripts/config_whitelist.txt
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@ -1951,7 +1951,6 @@ CONFIG_SAMSUNG
CONFIG_SAMSUNG_ONENAND
CONFIG_SANDBOX_ARCH
CONFIG_SANDBOX_BIG_ENDIAN
CONFIG_SANDBOX_BITS_PER_LONG
CONFIG_SANDBOX_SDL
CONFIG_SANDBOX_SPI_MAX_BUS
CONFIG_SANDBOX_SPI_MAX_CS