Commit Graph

953 Commits

Author SHA1 Message Date
Mathias Kresin
d65b1c815a lantiq: drop phy id specfic compatible string
With kernel commit 7630ea4bda18 ("Documentation: net: phy: improve
explanation when to specify the PHY ID") the purpose of using phy id
specific compatibles was clarified.

Remove the phy id specific compatibles since they are meant to be used
if the phy reports an incorrect or no phy id at all.

Reported-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-10-07 20:15:03 +02:00
Mathias Kresin
a6bd7255ab lantiq: remove gen_nand compatible string
The generic nand driver fails to load with:

  gen_nand 14000000.nand-parts: platform_nand_data is missing
  gen_nand: probe of 14000000.nand-parts failed with error -22

and the xway-nand driver is used afterwards.

Drop the gen_nand compatible to get rid of the error message.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-10-07 20:15:03 +02:00
Thibaut VARÈNE
254061ee97 build: add mktplinkfw2 hardcoded values to makefile
This patch adds all the board-specific values currently hardcoded
in mktplinkfw2.c back to the respective device declarations in the
makefiles.

The rationale is to avoid modifying the source code every time a
new board or board variant is added.

Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
2017-10-06 08:28:41 +02:00
Mathias Kresin
aba297b7fd lantiq: ase: enable USB and wireless
Add the missing USB related kernel config options to target config.
Enable wireless as well, wireless is supported via USB.

Fixes compile/packaging errors with the libertas wireless kernel
module.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-10-04 20:08:15 +02:00
Mathias Kresin
695645b9ac lantiq: ase: fix SPI support
Do not disable SPI in the subtarget, otherwise the SPI driver can not
be used.

Disable SPI by default and enable it in the board specific device tree
source file.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-10-04 20:08:15 +02:00
Mathias Kresin
66a0f3a397 lantiq: select PCI support in subtargets
AmazonSE and Falcon do not have support for PCI and it can't be
unselected in the subtarget kernel config. This way the enabled PCI
support is inherit from the higher level config to the subtarget.

If CONFIG_PCI is selected, PCI_SUPPORT will be autoselected as well and
all packages depending on this config symbol will be build and at least
some of them fail due to missing pci functions.

The issue can be observed if all kmods and all non-shared packages are
build. Fix the issue by enabling PCI support only in subtargets with
PCI support.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-10-04 20:08:15 +02:00
Mathias Kresin
77fee9bcce lantiq: ase: cleanup kernel config
The subtarget kernel config options CONFIG_CC_OPTIMIZE_FOR_SIZE and
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK are already set by the target or
global kernel config.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-10-04 20:08:15 +02:00
Mathias Kresin
d7a76be980 lantiq: xway: cleanup kernel config
CONFIG_SPI_LANTIQ was replaced by CONFIG_SPI_LANTIQ_SSC with the switch
to the upstreamed driver.

All other removed subtarget kernel config options are already set by
the target specific or global kernel config.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-10-04 20:08:15 +02:00
Mathias Kresin
d3f3b817ac lantiq: xrx200: cleanup kernel config
CONFIG_MTSCHED & CONFIG_PERFCTRS were never defined in the kernel.

CONFIG_LANTIQ_PHY was replaced by CONFIG_INTEL_XWAY_PHY with the switch
to the upstreamed driver.

Add autoselected dependecies to the kernel config.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-10-04 20:08:15 +02:00
Mathias Kresin
054f01ac16 lantiq: xrx200: fix sorting of kernel config
Use the kconfig script to sort the kernel config. It makes further
changes more obvious.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-10-04 20:08:15 +02:00
Mathias Kresin
1c45d11bb3 treewide: drop obsolete kernel config options
CONFIG_GPIO_DEVRES was removed with kernel commit f9c22ec6c1c5 ("gpio:
Remove GPIO_DEVRES option") during kernel 4.9 development.

CONFIG_HAVE_BPF_JIT was removed with kernel commit 6077776b5908 ("bpf:
split HAVE_BPF_JIT into cBPF and eBPF variant") during kernel 4.7
development.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-10-04 20:08:15 +02:00
Stijn Tintel
6e48eb22b8 kernel: update 4.9 to 4.9.51
Refresh patches.
Compile-tested on octeon and x86/64.
Runtime-tested on octeon and x86/64.

Fixes the following CVEs:
- CVE-2017-14106
- CVE-2017-14497

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-09-20 23:50:55 +03:00
Stijn Tintel
d5b7215e31 kernel: update 4.9 to 4.9.49
Refresh patches.
Compile-tested on octeon and x86/64.
Runtime-tested on octeon and x86/64.

Fixes CVE-2017-11600.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-09-11 01:56:14 +02:00
Jorge Amorós
e2218ea148 lantiq: ARV7519RW22: enable PCIe
Enable PCIe to make the (still unsupported) WAVE300 wireless visible to
the system.

Signed-off-by: Jorge Amorós <joramar76@yahoo.es>
2017-09-10 08:30:23 +02:00
Vittorio Alfieri
31b5069a50 lantiq: VR200v: enable PCI
Enable PCI to make the (still unsupported) WAVE300 wireless visible to
the system.

Signed-off-by: Vittorio Alfieri <vittorio88@gmail.com>
2017-09-09 10:05:05 +02:00
Mathias Kresin
47be42c347 lantiq: fix xrx200 switch carrier state
In conditions where none of the switch ports is connected during boot,
the priv->port[i].link != priv->port[i].phydev->link condition is false
since both link values are equal (false). The carrier of the switch
netdev is never set to off and the link state reported by ip is UNKNOWN.

Turn the carrier off if none of the switch ports has a link, regardless
whether something has been changed. Add a check for a carrier to
prevent unnecessary calls to netif_carrier_off() if the carrier is
already off.

Based on a patch send by Martin Schiller.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-09-08 21:48:48 +02:00
Mathias Kresin
6b06c2fb8e lantiq: drop kernel 4.4 support
Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-09-05 08:43:39 +02:00
Edward O'Callaghan
e0d6f541f7 lantiq: switch to kernel 4.9
Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net>
2017-09-05 08:43:39 +02:00
Daniel Golle
2f0a8558be lantiq: ACMP252: clean up device modules
Install kmod-rt2800-pci instead of only the rt2x00 library.
Fixes missing wireless interface on AudioCodes AC-MP252.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2017-08-29 02:21:09 +02:00
Kevin Darbyshire-Bryant
364befeccf kernel: update 4.4 to 4.4.83
Refresh patches.
Minor update 704-phy-no-genphy-soft-reset.patch which was partially
accepted upstream.
Compile-tested on ar71xx.
Runtime-tested on ar71xx.

Fixes the following vulnerabilities:
- CVE-2017-7533 (4.4.80)
- CVE-2017-1000111 (4.4.82)
- CVE-2017-1000112 (4.4.82)

Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
[cleanup commit message, add compile/runtime tested]
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-08-17 14:31:45 +02:00
Stijn Tintel
2d02a4f5bd kernel: update 4.9 to 4.9.44
Refresh patches.
Adapt 704-phy-no-genphy-soft-reset.patch.
Remove brcm2708/950-0005-mm-Remove-the-PFN-busy-warning.patch.
Compile-tested on brcm2708/bcm2708 and x86/64.
Runtime-tested on brcm2708/bcm2708 and x86/64.

Fixes the following vulnerabilities:
- CVE-2017-7533
- CVE-2017-1000111
- CVE-2017-1000112

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-08-17 12:34:34 +02:00
Daniel Gonzalez Cabanelas
e1f91b4a1c lantiq: fix missing otg_cap on danube platform
USB doesn't work in some danube boards because otg_cap
is missing since previous changes made on the USB-dwc2
lantiq driver. Fix it.

Tested on the ARV7518PW router.

Signed-off-by: Daniel Gonzalez Cabanelas <dgcbueu@gmail.com>
2017-08-09 23:20:56 +02:00
Martin Schiller
c8904e9c04 lantiq: board.d: use auto xfer_mode as default
If xfer_mode is set to auto the vdsl_cpe_control daemon assumes that
ATM should be used for ADSL and PTM for VDSL.

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
2017-08-06 09:22:03 +02:00
Martin Schiller
0481a2a2c5 lantiq: split up dsl_notify.sh into separate notification handlers
This makes it possible to simply add additional notification handlers
by putting new scripts in the /etc/hotplug.d/dsl directory.

the following Environment Variables are used:

(values marked with an * are only available when bonding support is
compiled in)

DSL_NOTIFICATION_TYPE with one of these values:
- DSL_STATUS
- DSL_INTERFACE_STATUS
- DSL_DATARATE_STATUS_US
- DSL_DATARATE_STATUS_DS

DSL_LINE_NUMBER=<0|1> *

If DSL_NOTIFICATION_TYPE == DSL_STATUS, these variables are set:

- DSL_XTU_STATUS=<ADSL|VDSL>
- DSL_TC_LAYER_STATUS=<ATM|EFM>
- DSL_EFM_TC_CONFIG_US=<NORMAL|PRE_EMPTION>
- DSL_EFM_TC_CONFIG_DS=<NORMAL>

If DSL_NOTIFICATION_TYPE == DSL_INTERFACE_STATUS, these variables are
set:

- DSL_INTERFACE_STATUS=<DOWN|READY|HANDSHAKE|TRAINING|UP>
- DSL_BONDING_STATUS=<INACTIVE|ACTIVE> *

If DSL_NOTIFICATION_TYPE == DSL_DATARATE_STATUS_US, these variables are
set:

- DSL_DATARATE_US_BC0=<Upstream data rate in bit/s for Channel 0>
- DSL_DATARATE_US_BC1=<Upstream data rate in bit/s for Channel 1> *

If DSL_NOTIFICATION_TYPE == DSL_DATARATE_STATUS_DS, these variables are
set:

- DSL_DATARATE_DS_BC0=<Downstream data rate in bit/s for Channel 0>
- DSL_DATARATE_DS_BC1=<Downstream data rate in bit/s for Channel 1> *

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
2017-08-06 09:22:03 +02:00
Andrea Merello
b81c04382b lantiq: fix sleep with spinlock held in xrx200 network driver
In the xrx200_close() function we call napi_disable(), that could
sleep, with priv->hw->chan[i].lock held. This could lead to deadlock
and causes the kernel to complain.

Look at the code I couldn't convince myself about why we
need to protect that specific code part with the lock. IMHO there
seems no reason to protect the refcount variables, because AFAIK
ndo_close() and ndo_open() callbacks are already called with a
semaphore held. Neither I could figure out why napi_disable() have to
be called with that lock held. The only remaining code part for
which I could guess the lock is useful for is ltq_dma_close()
function call.

This patch reduces the lock to the said function call, avoiding the
sleep-with-spinlock-held situation

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
[fold into 0025-NET-MIPS-lantiq-adds-xrx200-net.patch, backport to
kernel 4.4]
Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-07-20 19:10:29 +02:00
Mathias Kresin
ac3e05c5d7 treewide: populate boardname and model earlier
For targets using the generic board detection and board specific
settings in diag.sh, the board name is still unset at the time the
set_state() provided by diag.sh is called by 10_indicate_preinit.

Change the execution order to ensure the boardname is populated before
required the first time. Do the target specific board detection as
early as possible, directly followed by the generic one to allow a
seamless switch to the generic function for populating /tmp/sysinfo/.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-07-15 23:13:34 +02:00
Koen Vandeputte
cd54b2d42b kernel: update kernel 4.9 to 4.9.37
- Refreshed all patches
- Removed upstreamed
- Adapted 4 patches:

473-fix-marvell-phy-initialization-issues.patch
-----------------------------------------------
Removed hunk 5 which got upstreamed

403-net-phy-avoid-setting-unsupported-EEE-advertisments.patch
404-net-phy-restart-phy-autonegotiation-after-EEE-advert.patch
--------------------------------------------------------------
Adapted these 2 RFC patches, merging the delta's from an upstream commit
(see below) which made it before these 2.

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-
stable.git/commit/?h=v4.9.36&id=97ace183074d306942b903a148aebd5d061758f0

180-usb-xhci-add-support-for-performing-fake-doorbell.patch
-----------------------------------------------------------
- Moved fake_doorbell bitmask due to new item

Compile tested on: cns3xxx, imx6
Run tested on: cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2017-07-15 00:13:05 +02:00
Mathias Kresin
3dc757856c lantiq: fix typo in EASY80920.dtsi
There is no device tree property named phynmode0. Use phy-mode as it is
done for the other ethernet nodes.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-07-07 07:18:14 +02:00
Thomas Nixon
50e3659703 lantiq: add Netgear DM200 support
Netgear DM200 is an inexpensive VDSL modem:

    CPU: VRX220 MIPS 34Kc 5.6 @ 500Mhz
    RAM: 64MiB
    Flash: 8MiB
    Ethernet: 1x100M
    DSL: VDSL2+, ADSL2+
    reset button, 3x bi-color LEDs

Serial port is 115200 baud, on the 4 pin header; pins from the bottom to
top are GND, RX, TX.

To upgrade from the vendor firmware, upload factory.img

The DM200 bootloader supports flashing over TFTP; hold the reset button
while powering on the device, and wait for the power light to start
flashing green before releasing. The device is now listening on
192.168.0.1/24, and can be sent a factory.img or a netgear image with a
TFTP put.

Once the image is loaded, it will be written to the flash, and the
device will reboot; this will take a few minutes.

Thanks to Edward O'Callaghan and Baptiste Jonglez, who implemented their
own ports for this device and provided valuable feedback.

Signed-off-by: Thomas Nixon <tom@tomn.co.uk>
2017-07-07 07:13:24 +02:00
Mathias Kresin
08c499f865 lantiq: use img file extension for DGN3500 factory images
The Netgear UI in basic mode refuses the upgrade file if the the
fileextension is not img. The expert/advanced mode accepts any
fileextension. Use img to make it work in any case.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-07-04 16:29:01 +02:00
Piotr Dymacz
5b7f592251 build: move mktplinkfw2 related commands to image-commands.mk
There are already two targets (lantiq, ramips) which use mktplinkfw2
tool for creating images. This de-duplicates code, introduces two new
build commands: tplink-v2-header, tplink-v2-image and makes use of
them in place of old, (sub)target specific ones.

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
2017-06-29 10:37:36 +02:00
Stijn Tintel
880f73c327 kernel: cleanup CONFIG_SCHED_HRTICK
Remove CONFIG_SCHED_HRTICK from target configs, as it was added to the
generic config in b47fd76563.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-06-29 04:46:59 +02:00
Koen Vandeputte
69649a1b45 kernel: update kernel 4.9 to 4.9.34
- Refreshed all patches
- Adapted 1 (0031-mtd-add-SMEM-parser-for-QCOM-platforms.patch)

Compile tested on: brcm2708, cns3xxx, imx6
Run tested on: brcm2708, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
[Compile and run tested on brcm2708]
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-06-27 07:21:03 +02:00
Mathias Kresin
8e0d7d6574 build: move lzma2eva build step to image-commands.mk
Move it to image-commands.mk so that it can used by other targets with
eva based boards as well.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-06-24 22:36:38 +02:00
Mathias Kresin
d165f1f3bc kernel: move Lantiq PEF7061/7071/7072 phy driver to generic
The driver is used for boards outside the lantiq target as well. Move
it to generic to make it available for more targets.

The phy driver is included in kernel 4.8 as INTEL_XWAY_PHY.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-06-24 22:36:38 +02:00
Mathias Kresin
259fc1e778 lantiq: show xdsl line init status on shared dsl/internet led
On boards which don't have a distinct internet and dsl led, use the
shared LED to indicate the xdsl line state and any traffic that is
send/received via the netdev. This traffic doesn't necessarily need to
be internet traffic.

Rename the shared LED of existing configs to "dsl", to match the new
defaults. The configuration of the to be renamed LED is identical with
the new defaults.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-06-17 15:38:18 +02:00
Martin Schiller
03776d813c lantiq: restore netdev trigger of dsl led on line up
Allows to use a single LED for line init status indication and to show
any rx/tx activity on a synchronized dsl line.

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-06-17 15:34:16 +02:00
Sergey Ryazanov
68e7a2a0b7 kernel: disable CONFIG_SG_POOL by default
CONFIG_SG_POOL symbol is selected only by CONFIG_SCSI, since the last
one is disabled by default then disable CONFIG_SG_POOL by default too.
And explicitly enable it only for platforms that use CONFIG_SCSI.

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
2017-06-07 18:31:10 +02:00
Tino Reichardt
e097eb27af lantiq: fix 0008-MIPS-lantiq-backport-old-timer-code.patch for Amazon-SE
The patch 0008 removes the vanilla kernel gptu.c of lantiq.
But the replacement file timer.c does not work Amazon-SE and
is also protected therefore with an CONFIG_SOC_AMAZON_SE :-)

This commit will re-activate the default vanilla kernel code
in gptu.c for Amazon-SE.

Signed-off-by: Tino Reichardt <milky-lede@mcmilk.de>
[refresh patches and add same change for kernel 4.9]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-06-03 21:35:53 +02:00
Tino Reichardt
712ebe95f8 lantiq: add Allnet ALL0333CJ support
This patch adds support for the Allnet ADSL2+ Modem ALL0333CJ.

Specifications:
- SoC: Amazon-SE
- RAM: 16MB
- Storage: 4MB NOR FLash
- LEDs: Power, Ethernet, DSL (Sync)
- Buttons: 1x Reset Button (not currently supported, will be done)
- 1x Ethernet-Port: 1x RJ45 10/100BaseTX
- 1x WAN-Port: AnnexB & J, G.992.1(ADSL), G.992.3(ADSL2), G.992.5(ADSL2+)

Installation:
- can be done via telnet+tftp or serial console
- default passwords:
  - via telnet (root:admin)
  - via webinterface http://172.16.1.254:8235/ (admin:coolwhite)

Installation via telnet / tftp:
host: # your own host must have an tftpd daemon, then do this:
host: ifconfig eth0:172 172.16.1.1 up
host: # telnet to allnet modem, root:admin
host: telnet 172.16.1.254
modem: # kill this daemon, it spams your console
modem: killall dsl_cpe_control
modem: # change to some place in ram:
modem: cd /ramdisk/tftp_upload
modem: # load lede-lantiq-ase-ALL0333CJ-squashfs-sysupgrade.bin alias uImage
modem: tftp -g -r uImage 172.16.1.1
modem: # load these extra tools from your tftpd via:
modem: # source: https://github.com/mcmilk/uboot-utils/releases/download/0.1/mips32.tar.gz
modem: tftp -g -r flashwrite 172.16.1.1
modem: tftp -g -r fw_setenv 172.16.1.1
modem: tftp -g -r fw.conf 172.16.1.1
modem: ln -s fw_setenv fw_printenv
modem: chmod +x *
modem: ./fw_setenv disable_recovery y
modem: ./fw_setenv kernel_addr 0xb0010000
modem: ./flashwrite /dev/mtd/1 uImage 0

Installation via serial line at uboot:
uboot: # erase everything exept bootloader
uboot: protect on b0000000 +10000; protect on b03f0000 +10000
uboot: erase all
uboot: # get new firmware via tftp:
uboot: tftpboot 0x80100000 uImage; setenv kernel_addr 0xb0010000
uboot: # copy to flash:
uboot: cp.b 0x80100000 $(kernel_addr) $(filesize)
uboot: # disable proprietary image checking:
uboot: setenv disable_recovery=y; saveenv
uboot: # reboot with LEDE ;)
uboot: reset

Ethernet works as expected, DSL syncronization does not work properly
currently, I am working on this issue.

Signed-off-by: Tino Reichardt <milky-lede@mcmilk.de>
2017-06-03 21:14:07 +02:00
Tino Reichardt
995ad357f9 lantiq: enable Netgear DGN1000B image build
Enable the building of Netgear DGN1000B images. I have an
example device here, but it was not tested currently.
Also WLAN and USB is not ready in the moment.

This is just the proper way, so that developing on this
device is known to be done in the near future.

Signed-off-by: Tino Reichardt <milky-lede@mcmilk.de>
2017-06-03 21:14:07 +02:00
Tino Reichardt
9b321bc60d lantiq: add Amazon-SE subtarget
Re-Add support for the Amazon-SE subtarget on Lantiq.

Signed-off-by: Tino Reichardt <milky-lede@mcmilk.de>
2017-06-03 21:14:07 +02:00
Tino Reichardt
1039e41dea lantiq: fix amazonse.dsti
Add missing memory@0 and localbus@0 sections.
Fix MEI and GPTU interrupt definitions.

Signed-off-by: Tino Reichardt <milky-lede@mcmilk.de>
2017-06-03 21:14:07 +02:00
Helge Mader
63a20c95fd lantiq: modified lantiq_dsl.sh status output of latency
Signed-off-by: Helge Mader <ma@dev.tdt.de>
2017-06-02 22:49:45 +02:00
Helge Mader
666dd85b36 lantiq: fix lantiq_dsl.sh status and lucistat output
Signed-off-by: Helge Mader <ma@dev.tdt.de>
2017-06-02 22:49:33 +02:00
Martin Schiller
82f7fd7457 lantiq: pinctrl: xway: fix copy/paste error in xrx200_grps
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
2017-05-29 09:51:19 +02:00
Hauke Mehrtens
0b17375931 kernel: update kernel 4.9 to 4.9.30
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-05-27 00:48:37 +02:00
Mathias Kresin
822ee54544 treewide: fix device tree path in scripts
The device tree is at /proc/device-tree/ without a base subdir.

Fixes: da472e5b30 ("treewide: access device tree from userspace via /proc/")

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-05-26 15:18:30 +02:00
Mathias Kresin
da472e5b30 treewide: access device tree from userspace via /proc/
Access the device tree via /proc/device-tree/ is the documented way to
access the properties. Everything else might not work in future.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-05-26 08:04:15 +02:00
Hauke Mehrtens
6153248052 lantiq: spi: double time out tolerance
The generic SPI code calculates how long the issued transfer would take
and adds 100ms in addition to the timeout as tolerance. On my 500 MHz
Lantiq Mips SoC I am getting timeouts from the SPI like this when the
system boots up:

m25p80 spi32766.4: SPI transfer timed out
blk_update_request: I/O error, dev mtdblock3, sector 2
SQUASHFS error: squashfs_read_data failed to read block 0x6e

After increasing the tolerance for the timeout to 200ms I haven't seen
these SPI transfer time outs any more.
The Lantiq SPI driver in use here has an extra work queue in between,
which gets triggered when the controller send the last word and the
hardware FIFOs used for reading and writing are only 8 words long.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-05-21 21:51:28 +02:00