A patch for NAND uclass support was proposed about half a year ago:
https://patchwork.ozlabs.org/patch/722282/
It was not merged and I do not see on-going work for this.
Without DM-based probing, we need to set up pinctrl etc. in an ad-hoc
way and give lots of crappy CONFIG options for base addresses and
properties, which are supposed to be specified by DT. This is painful.
This commit just provides a probe hook to retrieve "reg" from DT and
allocate private data in a DM manner. This DT driver is not essentially
a NAND driver, in fact it is (ab)using UCLASS_MISC. Once UCLASS_NAND is
supported, it would be possible to migrate to it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Updates the NAND code to match Linux v4.6. The previous sync was from
Linux v4.1 in commit d3963721d9.
Note that none of the individual NAND drivers tracked Linux closely
enough to be synced themselves, other than manually applying a few
cross-tree changes.
Signed-off-by: Scott Wood <oss@buserror.net>
Tested-by: Heiko Schocher <hs@denx.de>
Read Denali hardware revision number and use it to
calculate max_banks, The encoding of max_banks changed
in Denali revision 5.1.
[ Linux commit : 271707b1d817f5104e02b2bd1bab43f0c8759418 ]
Signed-off-by: Graham Moore <grmoore@opensource.altera.com>
[Brian: parentheses around macro arg]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
[Masahiro: import from Linux and adjust ioread32() to readl() ]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Update the NAND code to match Linux v4.1. The previous sync was
from Linux v3.15 in commit 4e67c57125.
CONFIG_SYS_NAND_RESET_CNT is removed, as the upstream Linux code now
has its own timeout. Plus, CONFIG_SYS_NAND_RESET_CNT was undocumented
and not selected by any board.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Some variants of the Denali NAND controller need some registers
set up based on the device information that has been detected during
nand_scan_ident().
CONFIG_SYS_NAND_SELF_INIT has to be defined to insert code between
nand_scan_ident() and nand_scan_tail(). It is also helpful to reduce
the difference between this driver and its Linux counterpart because
this driver was ported from Linux. Moreover, doc/README.nand recommends
to use CONFIG_SYS_NAND_SELF_INIT.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Chin Liang See <clsee@altera.com>
To add the Denali NAND driver support into U-Boot.
This driver is leveraged from Linux with commit ID
fdbad98dff8007f2b8bee6698b5d25ebba0471c9. For Denali
controller 64 variance, you need to declare macro
CONFIG_SYS_NAND_DENALI_64BIT.
Signed-off-by: Chin Liang See <clsee@altera.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
