Commit graph

18323 commits

Author SHA1 Message Date
Mathias Kresin
8ca650b8ce ramips: move common tplink image build code into own recipe
Move common tplink image build code into own recipe. Include the common
parts instead of including a full build recipe and overwriting former set
varaibles.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-23 15:35:52 +01:00
Tomasz Maciej Nowak
cb2c0649ee kernel: move console loglevel to generic
Move CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7 to generic, to make it consistent
across all targets.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2017-12-23 14:24:40 +01:00
Stijn Tintel
efa22b1116 kernel: add missing config symbols for 4.14
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-12-21 23:54:41 +01:00
Roger Pueyo Centelles
82626cc145 ar71xx: add support for MikroTik RouterBOARD 921GS-5HPacD r2 (mANTBox 15s)
This patch adds support for the MikroTik RouterBOARD 921GS-5HPacD r2
(mANTBox 15s), an outdoor sector antenna with a built-in 802.11ac
wireless router. Additionally, it adds a new profile for devices with
>= 128 MB NAND flash and 802.11ac to the ar71xx/mikrotik subtarget.

See https://mikrotik.com/product/RB921GS-5HPacD-15S for more info.

Specifications:
 - SoC: Qualcomm Atheros QCA9558 (720 MHz)
 - RAM: 128 MB
 - Storage: 128 MB NAND
 - Wireless: external QCA9822 802.11a/ac 2x2:2
 - Ethernet: 1x 1000/100/10 Mbps, integrated, via AR8031 PHY, passive PoE in
 - SFP: 1x host

Working:
 - Board/system detection
 - NAND storage detection
 - Wireless
 - Ethernet
 - 1x user LED
 - Reset button
 - Sysupgrade

Untested:
 - SFP cage (probably not working)

Installation:
 - Boot initramfs image via TFTP and then flash sysupgrade image

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
2017-12-21 17:06:54 +01:00
Roger Pueyo Centelles
9604f7d337 ar71xx: fix spelling in mach-rb922.c
Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
2017-12-21 17:06:54 +01:00
Roger Pueyo Centelles
8927446dae ar71xx: fix rb922gs_nand_scan_fixup()
Apply code from commits 9e1bc27e6d
(ar71xx: Fix UBIFS work on Mikrotik RB95x devices) and
665bb27499 (ar71xx: fix invalid pointer
dereference in rb95x_nand_scan_fixup()) to RB92x devices too.

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
2017-12-21 17:06:54 +01:00
Christian Lamparter
e90dc8d272 apm821xx: convert to device-tree board detection
This patch converts all apm821xx devices to the device-tree
board-detection method. All instances of the legacy
boardnames (mbl,mr24,...) are converted to "vendor,device"
identifier.

The custom board-detection code in apm821xx.sh is removed as
it no longer serves any purpose.

Signed-off-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2017-12-21 01:05:16 +01:00
Christian Lamparter
213ba77359 apm821xx: enable metadata for packaging
This patch enables metadata-supported image verification
for all apm821xx supported devices. Since this method comes
with a built-in image verification tool (fwtool), the previous
image checks can be removed.

Signed-off-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2017-12-21 01:05:16 +01:00
Christian Lamparter
e6604fab51 apm821xx: align device names with vendor_device format
Currently, the device name handle does not include the
manufacturer. This can make it hard do differentiate
between products from different vendors that have the
same product name. As the handle is used to derive
the image name.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2017-12-21 01:05:16 +01:00
Christian Lamparter
1adeecf0d3 apm821xx: dts: rename devices dts files to include the manufacturer
This patch rename all the DT source files in order to
match upstream's "manufacturer-device.dts" format.

Please note that the DEVICE_DTB isn't changed. This is
because the u-boot of the MyBook Live defines the
fdt_file variable to be "apollo3g/apollo3g.dtb".

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2017-12-21 01:05:16 +01:00
Christian Lamparter
70301af915 apm821xx: add product names to the dt compatible for Meraki
Meraki choose to use their product's codename as the main
compatible string. Mathias Kresin commented that this is
a poor choice as this will confuse the users and devs once
the device-tree compatible is used for board-detection and
possible the image name.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2017-12-21 01:05:16 +01:00
Christian Lamparter
64b36fee8e apm821xx: dts: append SoC compatible to DTS
This patch appends the "apm,bluestone" or "amcc,apollo3g"
machine compatible string to the current device tree source.

Please note that unlike other archs the PPC DT code does
not regard the machine's compatible string as a priority
list. This is explained in the kernel's usage-model.txt as follows:
"PowerPC uses a slightly different scheme where it calls the .probe()
hook from each machine_desc, and the first one returning TRUE is used.
However, this approach does not take into account the priority of the
compatible list, and probably should be avoided for new architecture
support."

For this reason, the "apm,bluestone" compatible string can't be
added to the WNDR4700. As otherwise the target specific pci
fix-up code will get ignored and this causes the ath9k WIFI
to not get initialized.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2017-12-21 01:05:16 +01:00
Christian Lamparter
e4a50d115f apm821xx: replace DEVICE_{PROFILE|NAME} with BOARD_NAME
This patch sets the BOARD_NAME variable on each affected
apm821xx device. The existing DEVICE_PROFILE and
DEVICE_NAME assignments are deprecated as they no longer
serve any purpose.

The BOARD_NAME variable is used by the sysupgrade-tar
method to specifiy a directory overwrite for the
sysupgrade-$dir directory in the generated tar file.
Keeping the original boardname in this context will be
necessary for targets that utilize the sysupgrade-tar
method. Otherwise, sysupgrade on an previous installation
will not recognize the newly generated images.

This step is necessary since an upcoming patch realigns
the existing shortname for a device with a proper
"manufacturer_device" identifier.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2017-12-21 01:05:16 +01:00
Christian Lamparter
f895f1e51a apm821xx: replace whitespace with tabs
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2017-12-21 01:05:16 +01:00
Christian Lamparter
7c2106696d apm821xx: explicitly build the rootfs.img.gz target
The commit 87b668765e
("image: when using the new image build code, gzip ext4 images by default")

forced that all targets that select the ext4 as the root filesystem
to always compress the generated rootfs. This is fine, but this method
doesn't not allow to append the metadata on a per-target base.

Therefore this patch changes the rootfs image production rule to generate
the gzip step manually. This way the metadata can be appended at a later
date.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2017-12-21 01:05:16 +01:00
Mathias Kresin
198da20401 ramips: fix devicetree compat strings
"PandoraBox" is not the name of the manufacturer, it's a firmware made by
the manufacturer actually. Their official English name is "D-Team".

PBR-M1 is the only one they use "PandoraBox" as a brand name. Their other
products are using "Newifi" as their trademark (including Y1 and Y1S which
used to be OEM products for Lenovo).

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-21 01:05:16 +01:00
Jackson Ming Hu
c0e131b436 ramips: add support for newifi d2
Previously Newifi D2 could only use PandoraBox M1's firmware.
It works fine, but LED GPIO is different.
As a result, a separated DTS file for this device should be implemented.

Hardware spec:

* CPU: MTK MT7621A
* RAM: 512MB
* ROM: 32MB SPI Flash
* WiFi: MTK MT7603+MT7612
* Button: 2 buttons (reset, wps)
* LED: 3 single-color LEDs (USB, WiFi 2.4GHz, WiFi 5GHz) &
       2 dual-color LEDs (Power, Internet)
* Ethernet: 5 ports, 4 LAN + 1 WAN

Installation method:

Same as Newifi D1, users may need to request unlock code from the device
manufacturer. Otherwise, a SPI flash programmer may be necessary to get
the firmware flashed. After the device is unlocked, press and hold reset
button before power cable plugs in. Then go to http://192.168.1.1 to
upload and flash the firmware package.

Signed-off-by: Jackson Ming Hu <huming2207@gmail.com>
2017-12-21 01:05:16 +01:00
Andrew Crawley
fe6f298b07 ramips: add support for Vonets VAR11N-300
The VAR11N-300 is a tiny wireless-N device with a hardwired Ethernet
cable, one extra Ethernet port, and an internal antenna, based on the
MediaTek MT7620n chipset.

Specs:
- MT7620n WiSoC @ 600MHz
- 32 MB SDRAM
- 4 MB SPI flash
- 2T2R 2.4GHz WiFi-N
- 1 attached 10/100 Ethernet cable (LAN)
- 1 10/100 Ethernet port (WAN)
- 1 attached USB / barrel 5vdc power cable
- 5 LEDs (see notes below)
- 1 reset button
- 1 UART (3 pads on board)

Installation:

The stock firmware does not support uploading new firmware directly,
only checking the manufacturer's site for updates.  This process may be
possible to spoof, but the update check uses some kind of homebrew
encryption that I didn't investigate.  Instead, you can install via a
backdoor:

1. Set up a TFTP server to serve the firmware binary
(lede-ramips-mt7620-var11n-300-squashfs-sysupgrade.bin)
2. Factory reset the device by holding the reset button for a few
seconds.
3. Open the web interface (default IP: 192.168.253.254)
4. Log in with the "super admin" credentials: username `vonets`,
password `vonets26642519`.
5. On the "Operative Status" page, click the text "System Uptime", then
quickly click the uptime value.
6. If successful, an alert dialog will appear reading "Ated start", and
the device will now accept telnet connections.  If the alert does not
appear, repeat step 5 until it works (the timing is a bit tricky).
7. Telnet to the device using credentials "admin / admin"
8. Retrieve the firmware binary from the tftp server: `tftp -l lede.bin
-r lede-ramips-mt7620-var11n-300-squashfs-sysupgrade.bin -g
<tftp-server-ip>`
9. Write the firmware to flash: `mtd_write write lede.bin /dev/mtd4`
10. Reboot

Tested:
- LAN / WAN ethernet
- WiFi
- LAN / WAN / status LED GPIOs (see notes below)
- Reset button
- Sysupgrade

Notes:

LEDs:

The board has 5 LEDs - two green LEDs for LAN / WAN activity, one blue
LED for WiFi, and a pair of "status" LEDs connected to the same GPIO
(the blue LED lights when the GPIO is low, and the green when it's
high).  I was unable to determine how to operate the WiFi LED, as it
does not appear to be controlled by a GPIO directly.

Recovery:

The default U-boot installation will only boot from flash due to a
missing environment block.  I generated a valid 4KB env block using
U-boot's `fw_setenv` tool and wrote it to flash at 0x30000 using an
external programmer.  After this, it was possible to enter the U-boot
commandline interface and download a new image via TFTP (`tftpboot
81b00000 <image-filename>`), but while I could boot this image
sucessfully (`bootm`), writing it to flash (`cp.linux`) just corrupted
the flash chip.  The sysupgrade file can be written to flash at 0x50000
using an external programmer.

Signed-off-by: Andrew Crawley <acrawley@gmail.com>
2017-12-21 01:05:16 +01:00
Mathias Kresin
ad002c397a ramips: add helper variable for boardname
Add a helper variable which contains the boardname separated from the
vendor name. It allows to switch to a device tree compatible string
based boardname, by keeping the $board:colour:function syntax in
scripts handling/adding config for LEDs.

Boards not using the device tree compatible string as based boardname
are unaffected by the change, since none of them uses a comma in the
boardname.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-21 01:05:16 +01:00
Mathias Kresin
6545c71d2c ramips: sync image filename with boardname
Use <manufacturer>_<modelname> as image name for board using the
devicetree compat string as boardname.

Replace the underline of the device define, to keep the SUPPORTED_DEVICES
in sync with a devicetree compat string based boardname.

Override the default SUPPORTED_DEVICES for board which are having an
userspace boardname with an underline.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-21 01:05:16 +01:00
Mathias Kresin
7d3ec5f833 ramips: fallback to generic board detect
Fallback to the generic board detection if no case for the current
board exists.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-21 01:05:16 +01:00
Mathias Kresin
224d4a96dd ramips: drop LinkIt Smart 7688 Duo userspace support
The  LinkIt Smart 7688/LinkIt Smart 7688 Duo are identical beside the
extra ATmega32U4 - accessible via UART - on the the Duo.

Since all relevant hardware is identical, drop the Duo special handling
in userspace.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-21 01:05:16 +01:00
Hauke Mehrtens
f704b643b9 kernel: Update kernel 4.9 to 4.9.70
Runtime tested on lantiq.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-12-19 22:45:27 +01:00
Mathias Kresin
95fe3c51e5 ramips: fix polarity in gpio-export node
If we need to set the initial output value to GPIOF_OUT_INIT_HIGH (1) to
enable something, the pin is ACTIVE_HIGH. The same applies to
GPIOF_OUT_INIT_LOW (0) and ACTIVE_LOW.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-18 09:32:27 +01:00
Marty E. Plummer
7c03f97e84 ar71xx: fix lan ports on ens202ext
In the stock firmware both eth0 and eth1 are set to br-lan,
add this behavior to our images.

Fixes: FS#1084

Signed-off-by: Marty E. Plummer <hanetzer@protonmail.com>
2017-12-18 09:10:12 +01:00
Jonas Gorski
60a39e8f5a brcm63xx: fix Sercomm AD1018 status led
The status led part was missed when changing the board name to *-nor.

Fixes: e12c72bb52 ("brcm63xx: Add Sercomm AD1018 support")
Reported-by: Daniel Gonzalez Cabanelas <dgcbueu@gmail.com>
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2017-12-17 12:50:22 +01:00
Mathias Kresin
4a4d957d1a lantiq: sync image filename with boardname
Use <manufacturer>_<modelname> as image name.

Use the BOARD_NAME variable to ensure that the former used boardname is
still used as the subdirectory name for the sysupgrade-tar image, to
not break sysupgrade from earlier versions.

While at it, normalise the image filenames by using only lower case
characters and bin as file extension for sysupgrade images.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-16 23:33:56 +01:00
Mathias Kresin
58c6ad53a8 lantiq: drop unused variable from image build code
Remove the DEVICE_PROFILE variable. The variable isn't
used at all.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-16 23:33:56 +01:00
Mathias Kresin
7f68bd8119 lantiq: use the generic board detect
Drop the target specific detection function in favour of the generic
one provided by base-files.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-16 23:33:56 +01:00
Mathias Kresin
ed72540c10 lantiq: add missing model names
Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-16 23:33:56 +01:00
Mathias Kresin
26dc65b126 lantiq: remove the former board name from device tree model
Remove the former used board name from the device model property and
use the model name as it is.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-16 23:33:56 +01:00
Mathias Kresin
63d7f7fc92 lantiq: use the compatible string as board name
Use the first compatible string as board name in userspace. Add the new
board name as well as the former used board name to the image metadata
to keep compatibilty with already deployed installations.

Don't add the former used boardname for boards which exists only in
master or evaluation boards.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-16 23:33:56 +01:00
Mathias Kresin
aba421432f lantiq: drop SoC name from eval boards compatible string
Keep it in the same format as used for the other eval boards.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-16 23:33:56 +01:00
Mathias Kresin
7bab49fd7a lantiq: add compatible strings to dts files
The compatible string is mandetory for devicetree source file.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-12-16 23:33:56 +01:00
Hauke Mehrtens
481e1f23f5 x86: Add support for kernel 4.14
This adds basic support for kernel 4.14, this was tested in qemu only.
The subtarget configuration was refresh with kernel 4.14 and the
options needed to make it compile on kernel 4.9 were added manually.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-12-16 22:16:07 +01:00
Hauke Mehrtens
199273324e kernel: add kmod-crypto-ecdh
In kernel 4.14 kmod-bluetooth depends on kmod-crypto-ecdh, add
kmod-crypto-ecdh to LEDE.
Both packages also depend on the kmod-crypto-kpp package. To build this
we have to fix the dependency of CRYPTO_ECDH which has a typo.
This patch is already accepted upstream.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-12-16 22:13:04 +01:00
Hauke Mehrtens
b3f95490b9 kernel: generic: Add kernel 4.14 support
This adds initial support for kernel 4.14 based on the patches for
kernel 4.9.

In the configuration I deactivated some of the new possible security
features like:
CONFIG_REFCOUNT_FULL
CONFIG_SLAB_FREELIST_HARDENED
CONFIG_SOFTLOCKUP_DETECTOR
CONFIG_WARN_ALL_UNSEEDED_RANDOM

And these overlay FS options are also deactivated:
CONFIG_OVERLAY_FS_INDEX
CONFIG_OVERLAY_FS_REDIRECT_DIR

I activated this:
CONFIG_FORTIFY_SOURCE
CONFIG_POSIX_TIMERS
CONFIG_SLAB_MERGE_DEFAULT
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED

I am not sure if I did the porting correct for the following patches:
target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch
target/linux/generic/hack-4.14/220-gc_sections.patch
target/linux/generic/hack-4.14/321-powerpc_crtsavres_prereq.patch
target/linux/generic/pending-4.14/305-mips_module_reloc.patch
target/linux/generic/pending-4.14/611-netfilter_match_bypass_default_table.patch
target/linux/generic/pending-4.14/680-NET-skip-GRO-for-foreign-MAC-addresses.patch

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-12-16 22:11:19 +01:00
Hauke Mehrtens
a362df6f25 x86: refresh configuration
Just refresh the kernel configuration, some options are removed because
they are now in the generic kernel configuration.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-12-16 22:11:05 +01:00
Hauke Mehrtens
0402c48cba kernel: generic: add some more 4.9 configure options
These are taken from the x86 target and should make support kernel 4.9
and 4.14 in the x86 target easier.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-12-16 22:10:48 +01:00
Philip Prindeville
f96085b35d x86: add on-chip thermal sensors and cpuid support
Cover temperature sensors for all mainstream 64-bit processors, including
AMD 10h and 15h families, Intel iCore, Xeon, Atom, and Via Nano.  Also
add CPUID support for user-space applications to detect CPU type.

Include the on-chip sensors for 64-bit CPU's in the generic profile
in case someone builds a 32-bit kernel to run on a Xeon SoC, etc.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
2017-12-16 14:41:37 +01:00
Philip Prindeville
9868eba5a0 x86: refresh settings for 4.9.59
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
2017-12-16 14:41:37 +01:00
Jonas Gorski
054c0d4e31 brcm63xx: backport mdio-bus reset gpio support
Backport the mdio-bus reset gpio support from 4.12 and use it instead
of toggling the reset ourself.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2017-12-16 12:57:06 +01:00
Jonas Gorski
49c3b1c455 brcm63xx: backport enet cleanup patches
Align with upstream version, mostly non-fixes and small clean ups.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2017-12-16 12:57:05 +01:00
Jonas Gorski
aba4e29ead brcm63xx: register serial through device tree
Register serial consoles through device tree instead of through board
data.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2017-12-16 12:57:05 +01:00
Jonas Gorski
a3384088a2 brcm63xx: add uart nodes
Now that we can register uarts through device-tree, add them to the dtsi
files.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2017-12-16 12:57:05 +01:00
Jonas Gorski
5c69047aaf brcm63xx: add clkdev lookup support
Add clockdev lookup support for easier providing of clocks for
devices.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2017-12-16 12:57:05 +01:00
Daniel Gonzalez Cabanelas
e12c72bb52 brcm63xx: Add Sercomm AD1018 support
Add support for the Sercomm AD1018 router

This a BCM6328 based board, 128 MB RAM, 128 MiB NAND flash,
with an onboard BCM43217 wifi, 4 ethernet ports and 1 USB
host port (not soldered). The board also has an FXS chip (Si32177)
connected via SPI (SS2#), without support in LEDE.

Since NAND flash chips aren't still supported in brcm63xx, the
support is for now added to work only with SPI flash chips. Therefore
hardware modding, soldering a new SPI flash chip, is required
to make the board work with LEDE (tested and working OK).
The flash at dts is intentionally left without partitioning to let
the user choose a NOR chip of any size (8, 16 or 32 MB).

Signed-off-by: Daniel Gonzalez Cabanelas <dgcbueu@gmail.com>
[jonas.gorski: renamed ad1018 to ad1018-nor to signify the modification]
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2017-12-16 12:57:05 +01:00
Sandeep Sheriker Mallikarjun
085967f774 at91: create sdcard image for sama5
create sdcard image using gen_at91_sdcard_img.sh for sama5 platform
and sdcard image partition layout is:
  P0: Boot (fat32) - contains(at91bootstrap,u-boot,zImage & dtb)
  p1: Rootfs (ext4)

Signed-off-by: Sandeep Sheriker Mallikarjun <sandeepsheriker.mallikarjun@microchip.com>
2017-12-16 00:02:14 +01:00
Gabor Juhos
665bb27499 ar71xx: fix invalid pointer dereference in rb95x_nand_scan_fixup()
Since Linux 4.6, mtd->priv no longer points to the NAND specific
structure. Under 4.9 it contains NULL, thus using it to access
chip->options causes an invalid pointer dereference (FS#1200).

Update the code to use the mtd_to_nand() helper under 4.9 to obtain
the address of the chip specific data.

Fixes: 7bbf4117c6 ("ar71xx: Add kernel 4.9 support")
Signed-off-by: Gabor Juhos <juhosg@freemail.hu>
2017-12-16 00:00:25 +01:00
Gabor Juhos
2ecc413107 ar71xx: fix invalid pointer dereference in c60_nand_scan_fixup()
Since Linux 4.6, mtd->priv no longer points to the NAND specific
structure. Under 4.9 it contains NULL, thus using it to access
the fields of the nand_chip structure causes an invalid pointer
dereference.

Update the code to use the mtd_to_nand() helper under 4.9 to obtain
the address of the chip specific data.

Compile tested only.

Fixes: 7bbf4117c6 ("ar71xx: Add kernel 4.9 support")
Signed-off-by: Gabor Juhos <juhosg@freemail.hu>
Tested-by: Christian Lamparter <chunkeey@gmail.com>
2017-12-15 23:57:41 +01:00