[U-Boot] [PATCH v10 4/4] common: Generic firmware loader for file system

[Chee, Tien Fong <tien.fong.chee@intel.com>]

On Tue, 2018-03-06 at 10:51 -0700, Simon Glass wrote:
> Hi,
> 
> On 5 March 2018 at 02:43,  <tien.fong.chee@intel.com> wrote:
> > 
> > From: Tien Fong Chee <tien.fong.chee@intel.com>
> > 
> > This is file system generic loader which can be used to load
> > the file image from the storage into target such as memory.
> > The consumer driver would then use this loader to program whatever,
> > ie. the FPGA device.
> > 
> > Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
> > Reviewed-by: Lothar Waßmann <LW@KARO-electronics.de>
> > ---
> >  common/Kconfig             |  10 ++
> >  common/Makefile            |   1 +
> >  common/fs_loader.c         | 353
> > +++++++++++++++++++++++++++++++++++++++++++++
> >  doc/README.firmware_loader |  86 +++++++++++
> >  include/fs_loader.h        |  28 ++++
> >  5 files changed, 478 insertions(+)
> >  create mode 100644 common/fs_loader.c
> >  create mode 100644 doc/README.firmware_loader
> >  create mode 100644 include/fs_loader.h
> This looks fine as a concept but I am not keen on the implementation.
> 
This patchset has been going through many rounds and a lot of time
spending in review, and it is already working and being tested. I still
have a lot subsequent patches pending on this patchset. I would suggest
to accept this patchset, then we can enhance it to driver model in
later.

> 1. It should use driver model (only) in U-Boot proper. If there is
> some SPL problem then add a specific function or feature for SPL.
We can doing this in later since it is require sometime to figure out
and testing.

> 2. It should not be necessary ti manually init subsystems - driver
> model does this for you
This is for initializing storage driver in very early SPL, where
loading from storage to configure some critical HW need to done first.

> 3. You can use the uclass name to find things
Yeah, once it is converted to driver model, we can use the uclass for
searching HW info in DTS.
> 
> Please let me know if you need more info.
> 
> Regards,
> Simon