[U-Boot] [PATCH v3 26/28] cmd: make MTD commands depend on MTD

[Miquel Raynal <miquel.raynal@bootlin.com>]

Hi Boris,

Boris Brezillon <boris.brezillon@bootlin.com> wrote on Wed, 5 Dec 2018
11:42:08 +0100:

> On Wed,  5 Dec 2018 00:57:12 +0100
> Miquel Raynal <miquel.raynal@bootlin.com> wrote:
> 
> > Defconfigs have been fixed, now we can add proper dependencies in
> > Kconfig. SPI FLASH is still not dependent on MTD (deeper rework needed).
> > 
> > Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
> > ---
> >  cmd/Kconfig | 10 +++++++---
> >  1 file changed, 7 insertions(+), 3 deletions(-)
> > 
> > diff --git a/cmd/Kconfig b/cmd/Kconfig
> > index cf58174013..7c166a07e6 100644
> > --- a/cmd/Kconfig
> > +++ b/cmd/Kconfig
> > @@ -679,6 +679,7 @@ config CMD_FDC
> >  config CMD_FLASH
> >  	bool "flinfo, erase, protect"
> >  	default y
> > +	depends on MTD
> >  	help
> >  	  NOR flash support.
> >  	    flinfo - print FLASH memory information
> > @@ -868,6 +869,7 @@ config CMD_MMC_SWRITE
> >  
> >  config CMD_MTD
> >  	bool "mtd"
> > +	depends on MTD
> >  	select MTD_PARTITIONS
> >  	help
> >  	  MTD commands support.
> > @@ -875,6 +877,7 @@ config CMD_MTD
> >  config CMD_NAND
> >  	bool "nand"
> >  	default y if NAND_SUNXI
> > +	depends on MTD_RAW_NAND
> >  	help
> >  	  NAND support.
> >  
> > @@ -915,6 +918,7 @@ config CMD_MMC_SPI
> >  
> >  config CMD_ONENAND
> >  	bool "onenand - access to onenand device"
> > +	depends on MTD
> >  	help
> >  	  OneNAND is a brand of NAND ('Not AND' gate) flash which provides
> >  	  various useful features. This command allows reading, writing,
> > @@ -1733,7 +1737,7 @@ config CMD_JFFS2
> >  
> >  config CMD_MTDPARTS
> >  	bool "MTD partition support"
> > -	select MTD if (CMD_NAND || NAND)
> > +	depends on MTD
> >  	help
> >  	  MTD partitioning tool support.
> >  	  It is strongly encouraged to avoid using this command
> > @@ -1754,14 +1758,14 @@ endif
> >  
> >  config MTDIDS_DEFAULT
> >  	string "Default MTD IDs"
> > -	depends on MTD_PARTITIONS || CMD_MTDPARTS || CMD_NAND || CMD_FLASH
> > +	depends on MTD || SPI_FLASH  
> 
> Can't we have MTD enabled without MTD_PARTITIONS? I guess we don't need
> to expose these options if MTD_PARTITIONS is disabled.

That's the theory. (Travis) Experience shows that adding a
dependency on MTD_PARTITIONS when removing the dependency on the above
commands is too restrictive and some header files using
MTDIDS/MTDPARTS_DEFAULT will produce build issues. This is insane but I
did not want to debug this issue and, anyway, it is harmless to have
these strings defined.

> 
> >  	help
> >  	  Defines a default MTD IDs list for use with MTD partitions in the
> >  	  Linux MTD command line partitions format.
> >  
> >  config MTDPARTS_DEFAULT
> >  	string "Default MTD partition scheme"
> > -	depends on MTD_PARTITIONS || CMD_MTDPARTS || CMD_NAND || CMD_FLASH
> > +	depends on MTD || SPI_FLASH
> >  	help
> >  	  Defines a default MTD partitioning scheme in the Linux MTD command
> >  	  line partitions format  
> 

Thanks,
Miquèl