Commit graph

19 commits

Author SHA1 Message Date
Marcel Ziswiler
4b11a6296a mtd: nand: tegra: convert to driver model and live tree
The Tegra NAND driver recently got broken by ongoing driver model resp.
live tree migration work:

NAND:  Could not decode nand-flash in device tree
Tegra NAND init failed
0 MiB

A patch for NAND uclass support was proposed about a year ago:
https://patchwork.ozlabs.org/patch/722282/

It was not merged and I do not see on-going work for this.

This commit just provides a driver model probe hook to retrieve further
configuration from the live device tree. As there is no NAND ulass as of
yet (ab)using UCLASS_MTD. Once UCLASS_NAND is supported, it would be
possible to migrate to it.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-05-10 16:34:10 -07:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Simon Glass
150c5afe5b dm: gpio: Add live tree support
Add support for requesting GPIOs with a live device tree.

This involves adjusting the function signature for the legacy function
gpio_request_by_name_nodev(), so fix up all callers.

Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes to stm32f746-disco.c:
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-06-01 07:03:10 -06:00
Masahiro Yamada
1221ce459d treewide: replace #include <asm/errno.h> with <linux/errno.h>
Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content.  (both just wrap <asm-generic/errno.h>)

Replace all include directives for <asm/errno.h> with <linux/errno.h>.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-09-23 17:55:42 -04:00
Robert P. J. Day
62a3b7dd08 Various, unrelated tree-wide typo fixes.
Fix a number of typos, including:

     * "compatble" -> "compatible"
     * "eanbeld" -> "enabled"
     * "envrionment" -> "environment"
     * "FTD" -> "FDT" (for "flattened device tree")
     * "ommitted" -> "omitted"
     * "overriden" -> "overridden"
     * "partiton" -> "partition"
     * "propogate" -> "propagate"
     * "resourse" -> "resource"
     * "rest in piece" -> "rest in peace"
     * "suport" -> "support"
     * "varible" -> "variable"

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
2016-07-16 09:43:12 -04:00
Scott Wood
81c772521f mtd: nand: Add page argument to write_page() etc.
This change is part of the Linux 4.6 sync.  It is being done before the
main sync patch in order to make it easier to address the issue across
all NAND drivers (many/most of which do not closely track their Linux
counterparts) separately from other merge issues.

Signed-off-by: Scott Wood <oss@buserror.net>
2016-06-03 20:27:48 -05:00
Scott Wood
17cb4b8f32 mtd: nand: Add+use mtd_to/from_nand and nand_get/set_controller_data
These functions are part of the Linux 4.6 sync.  They are being added
before the main sync patch in order to make it easier to address the
issue across all NAND drivers (many/most of which do not closely track
their Linux counterparts) separately from other merge issues.

Signed-off-by: Scott Wood <oss@buserror.net>
2016-06-03 20:27:48 -05:00
Scott Wood
b616d9b0a7 nand: Embed mtd_info in struct nand_chip
nand_info[] is now an array of pointers, with the actual mtd_info
instance embedded in struct nand_chip.

This is in preparation for syncing the NAND code with Linux 4.6,
which makes the same change to struct nand_chip.  It's in a separate
commit due to the large amount of changes required to accommodate the
change to nand_info[].

Signed-off-by: Scott Wood <oss@buserror.net>
2016-06-03 20:27:48 -05:00
Simon Glass
cf92e05c01 Move ALLOC_CACHE_ALIGN_BUFFER() to the new memalign.h header
Now that we have a new header file for cache-aligned allocation, we should
move the stack-based allocation macro there also.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-09-11 17:15:20 -04:00
Marcel Ziswiler
6eeedc196d tegra: nand: disable subpage writes
Disable subpage writes as we do not provide ecc->hwctl.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-08-13 13:06:03 -07:00
Marcel Ziswiler
adf4800d85 mtd/nand/tegra: alignment workaround
Integrate cache alignment bounce buffer to workaround issues as follows:

Loading file '/boot/zImage' to addr 0x01000000 with size 4499152 (0x0044a6d0)...
ERROR: v7_dcache_inval_range - start address is not aligned - 0x1f7f0108
ERROR: v7_dcache_inval_range - stop address is not aligned - 0x1f7f1108
Done
Kernel image @ 0x1000000 [ 0x000000 - 0x44a6d0 ]

Starting kernel ...

undefined instruction
pc : [<005ff03c>]          lr : [<0000800c>]
sp : 0144b6e8  ip : 01000188     fp : 0144a6c8
r10: 00000000  r9 : 411fc090     r8 : 00000100
r7 : 00000cfb  r6 : 0144a6d0     r5 : 00000000  r4 : 00008000
r3 : 0000000c  r2 : 00000100     r1 : 00000cfb  r0 : 00000000
Flags: nZCv  IRQs off  FIQs off  Mode SVC_32
Resetting CPU ...

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-08-13 13:06:02 -07:00
Marcel Ziswiler
1bc66a57c0 tegra: nand: fix read_byte required for proper onfi detection
Fix PIO read_byte() implementation not only used for the legacy READ ID
but also the PARAM command required for proper ONFI detection.

This fix is inspired by Lucas Stach's Linux Tegra NAND driver of late
(not mainline yet but getting there soon I hope).

I vaguely remember that those commands are special on 16-bit bus NAND
(e.g. always return 8-bit data regardless) and later Linux MTD fixed/
changed the way this is handled which in turn broke once U-Boot pulled
that in. Basically instead of doing PIO read regular DMA block read is
now used which this patch actually fixes.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-08-13 13:06:02 -07:00
Simon Glass
b0265d56fe dm: tegra: nand: Remove use of fdtdec GPIO support
These functions are going away, so use the new uclass support instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-29 17:09:52 -07:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Sergey Lapin
dfe64e2c89 mtd: resync with Linux-3.7.1
This patch is essentially an update of u-boot MTD subsystem to
the state of Linux-3.7.1 with exclusion of some bits:

- the update is concentrated on NAND, no onenand or CFI/NOR/SPI
flashes interfaces are updated EXCEPT for API changes.

- new large NAND chips support is there, though some updates
have got in Linux-3.8.-rc1, (which will follow on top of this patch).

To produce this update I used tag v3.7.1 of linux-stable repository.

The update was made using application of relevant patches,
with changes relevant to U-Boot-only stuff sticked together
to keep bisectability. Then all changes were grouped together
to this patch.

Signed-off-by: Sergey Lapin <slapin@ossfans.org>
[scottwood@freescale.com: some eccstrength and build fixes]
Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-05-31 17:12:03 -05:00
Lucas Stach
a833b95039 tegra: nand: make ONFI detection work
Add the missing bits to the Tegra NAND driver to make ONFI detection work
properly.

Also add it to the Tegra default config, as it seems to be a reasonable thing
to have it available on all boards that use any kind of NAND.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-10-29 09:07:05 -07:00
Lucas Stach
c0720afbb5 tegra: nand: add board pinmux
Boards may require a different pinmux setup for NAND than the default one.
Add a way to call into board specific code to set this up.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-10-15 11:54:07 -07:00
Tom Warren
150c24936b Tegra20: Move some include files to arch-tegra for sharing with Tegra30
The move is pretty straight-forward. ap20.h and tegra20.h were renamed to ap.h and tegra.h.
Some files remain in arch-tegra20 but 'include' a file in 'arch-tegra' with #defines & structs
that will be common between T20 and T30 HW. HW-specific #defines, etc. stay in the 'arch-tegra20'
'root' file.

All boards build OK w/MAKEALL -s tegra20. Checkpatch.pl runs clean. Seaboard works OK.

Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-10-15 11:54:06 -07:00
Jim Lin
312693c3dd tegra: nand: Add Tegra NAND driver
A device tree is used to configure the NAND, including memory
timings and block/pages sizes.

If this node is not present or is disabled, then NAND will not
be initialized.

Signed-off-by: Jim Lin <jilin@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-09-07 13:54:31 -07:00