On Wed, Nov 8, 2017 at 11:16 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> On Wed, Nov 8, 2017 at 6:55 AM, Greentime Hu <green.hu@xxxxxxxxx> wrote:
>> --- /dev/null
>> +++ b/arch/nds32/Kconfig
>> @@ -0,0 +1,107 @@
>> +#
>> +# For a description of the syntax of this configuration file,
>> +# see Documentation/kbuild/kconfig-language.txt.
>> +#
>> +
>> +config NDS32
>> + def_bool y
>> + select ARCH_HAS_RAW_COPY_USER
>> + select ARCH_WANT_FRAME_POINTERS if FTRACE
>> + select ARCH_WANT_IPC_PARSE_VERSION
>> + select CLKSRC_MMIO
>> + select CLONE_BACKWARDS
>> + select TIMER_OF
>> + select FRAME_POINTER
>> + select GENERIC_ATOMIC64
>> + select GENERIC_CPU_DEVICES
>> + select GENERIC_CLOCKEVENTS
>> + select GENERIC_IOMAP
>> + select GENERIC_IRQ_CHIP
>> + select GENERIC_IRQ_PROBE
>> + select GENERIC_IRQ_SHOW
>> + select GENERIC_STRNCPY_FROM_USER
>> + select GENERIC_STRNLEN_USER
>> + select GENERIC_TIME_VSYSCALL
>> + select HAVE_ARCH_TRACEHOOK
>> + select HAVE_GENERIC_IOMAP
>
> You normally don't want HAVE_GENERIC_IOMAP, at least unless the CPU
> has special instructions to trigger PCI I/O port access.
GENERIC_IOMAP or HAVE_GENERIC_IOMAP?
The latter doesn't even exist, except in
Documentation/kbuild/kconfig-language.txt, so it cannot be selected.
Given the checks for __NDS32_EB__, NDS32 can be either big or little endian,
so you should have (excatly one of) CPU_BIG_ENDIAN or CPU_LITTLE_ENDIAN set.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
