[U-Boot] arc: axs103 compile broken ?

[Alexey Brodkin <Alexey.Brodkin@synopsys.com>]

Hi Simon,

On Wed, 2016-06-15 at 18:39 -0600, Simon Glass wrote:
> Hi Alexey,
> 
> On 14 June 2016 at 01:15, Alexey Brodkin <Alexey.Brodkin@synopsys.com> wrote:
> > 
> > Hi Heiko,
> > 
> > On Tue, 2016-06-14 at 07:07 +0200, Heiko Schocher wrote:
> > > 
> > > Hello Sjoerd,
> > > 
> > > as I just write a tbot testcase, which checks patches, which moves
> > > a config option to Kconfig, I tested also to compile arc boards, and
> > > the first try immediately failed with:
> > > 
> > > pollux:u-boot-dxr2 hs [master] $ make axs103_defconfig
> > > ???HOSTCC??scripts/basic/fixdep
> > > ???HOSTCC??scripts/kconfig/conf.o
> > > ???SHIPPED scripts/kconfig/zconf.tab.c
> > > ???SHIPPED scripts/kconfig/zconf.lex.c
> > > ???SHIPPED scripts/kconfig/zconf.hash.c
> > > ???HOSTCC??scripts/kconfig/zconf.tab.o
> > > ???HOSTLD??scripts/kconfig/conf
> > > #
> > > # configuration written to .config
> > > #
> > > pollux:u-boot-dxr2 hs [master] $ make -s -j8 all
> > > In file included from drivers/net/designware.c:21:0:
> > > drivers/net/designware.h:11:22: fatal error: asm/gpio.h: Datei oder Verzeichnis nicht gefunden
> > > ? #include <asm/gpio.h>
> > > ???????????????????????^
> > > compilation terminated.
> > > scripts/Makefile.build:280: recipe for target 'drivers/net/designware.o' failed
> > > make[1]: *** [drivers/net/designware.o] Error 1
> > > Makefile:1208: recipe for target 'drivers/net' failed
> > > make: *** [drivers/net] Error 2
> > > make: *** Warte auf noch nicht beendete Prozesse...
> > > pollux:u-boot-dxr2 hs [master] $
> > > 
> > > looking into the git history of drivers/net/designware.c it seems
> > > to me, that the commit:
> > > 
> > > commit 90b7fc924adf "net: designware: support phy reset device-tree bindings"
> > > 
> > > added the missing include.
> > > 
> > > $ find arch/arc/include/asm/ -name gpio.h
> > > $
> > > 
> > > I used the toolchain from:
> > > https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/tag/arc-2015.12
> > > 
> > > Some ideas? May I did something wrong?
> > The problem happens because for ARC we don't have "gpio.h" in "arch/arc/include/asm".
> > That's because we never needed one and I don't know what to put there except inclusion of
> > "include/asm-generic/gpio.h".
> > 
> > Indeed I or anybody else may send a patch to address that missing header for ARC.
> > But for me it looks like improper solution - why multiply substances?
> > 
> > We may instead just include headers from "asm-generic" by default and get rid of all
> > senseless dummy arch/X/include/asm instances.
> 
> This should work fine now as the offending archs have been converted
> to driver model and don't need global GPIO number definitions. Please
> go ahead.

Could you please clarify what did you really mean?
Shall I proceed with adding "arch/arc/include/asm/gpio.h" or what?

-Alexey