In order to save power consumption as much as possible.
* Disable sata phy internal pll reference clock when sysetem enter
into suspend mode, enable it after resume.
* Setup module parameter used to enable imx ahci test power down
mode(PDDQ) or not, when there is no device detected on the port
* minor modifications:
- The format of the copyright is changed, because that the original
one can't pass fsl internal patch reivew without the character
'(c)'.
- Exports ahci_platform_ops and ahci_error_handler().
NOTE:
* The hot-plug can't be supported when PDDQ mode is ever enabled.
* module parameter usage how-to:
- default: enable PDDQ mode when no device detected.
- add "ahci-imx.hotplug=1" into kernel command line if your don't
want to enable PDDQ mode when no device detected on the port.
tj: Slightly updated description and comments.
Signed-off-by: Richard Zhu <r65037@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The patch fixes a printk() being cut in half, some typos
and a change in comments to better reflect the specs.
Signed-off-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Powerpc is a mess of implicit includes by prom.h. Add the necessary
explicit includes to drivers in preparation of prom.h cleanup.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
libata EH decrements scmd->retries when the command failed for reasons
unrelated to the command itself so that, for example, commands aborted
due to suspend / resume cycle don't get penalized; however,
decrementing scmd->retries isn't enough for ATA passthrough commands.
Without this fix, ATA passthrough commands are not resend to the
drive, and no error is signalled to the caller because:
- allowed retry count is 1
- ata_eh_qc_complete fill the sense data, so result is valid
- sense data is filled with untouched ATA registers.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Change "raw" printk() call to dev_info() to provide a better
message to userspace so it can properly identify the device
and not just have to guess.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Change "raw" printk() call to dev_info() to provide a better
message to userspace so it can properly identify the device
and not just have to guess.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The test for 2nd I/O port validity is broken (reversed): On devices
with no control port, the driver attempts to use invalid port 0,
resulting in logs full of bad_io_access errors. On devices with
control port, the driver does not use it.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
My old @it.uu.se email address is going away, so update relevant
files to point to my @gmail.com address instead. In sata_promise.c
just delete the address, people can get it from MAINTAINERS.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here module parameters ahci_em_messages and devslp_idle_timeout can
be set as static and __read_mostly.
Signed-off-by: Liu, Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The endianness attribute on the 'aux' local variable is wrong, and can
lead to wrong endianness on big-endian machines,
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The ata_dev_acpi_handle is defined in libata-acpi.c and the only
external user is libata-zpodd.c, which is built when CONFIG_ATA_ACPI
is set, so there is no need to make an empty stub function for
ONFIG_ATA_ACPI case in libata.h. It also causes compile errors due to
acpi_handle is not defined when !CONFIG_ACPI. This patch fixes this
problem by removing the empty stub.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Some new SSDs support the queued version of the DSM TRIM command.
Let the driver use the new command if supported.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add support for the following ATA opcodes, which are present
in SATA 3.1 and T13 ATA ACS-3:
SEND FPDMA QUEUED
RECEIVE FPDMA QUEUED
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add a new port flag, ATA_FLAG_FPDMA_AUX, used to indicate
support for transmission of the H2D FIS 'auxiliary' field.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
SATA 3.1 added an "auxiliary" field to the host-to-device FIS.
Populate the host-to-device FIS with the new field via the
taskfile struct.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Binding ACPI handle to SCSI device has several drawbacks, namely:
1 During ATA device initialization time, ACPI handle will be needed
while SCSI devices are not created yet. So each time ACPI handle is
needed, instead of retrieving the handle by ACPI_HANDLE macro,
a namespace scan is performed to find the handle for the corresponding
ATA device. This is inefficient, and also expose a restriction on
calling path not holding any lock.
2 The binding to SCSI device tree makes code complex, while at the same
time doesn't bring us any benefit. All ACPI handlings are still done
in ATA module, not in SCSI.
Rework the ATA ACPI binding code to bind ACPI handle to ATA transport
devices(ATA port and ATA device). The binding needs to be done only once,
since the ATA transport devices do not go away with hotplug. And due to
this, the flush_work call in hotplug handler for ATA bay is no longer
needed.
Tested on an Intel test platform for binding and runtime power off for
ODD(ZPODD) and hard disk; on an ASUS S400C for binding and normal boot
and S3, where its SATA port node has _SDD and _GTF control methods when
configured as an AHCI controller and its PATA device node has _GTF
control method when configured as an IDE controller. SATA PMP binding
and ATA hotplug is not tested.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Dirk Griesbach <spamthis@freenet.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixing support for the Silicon Image 3826 port multiplier, by applying
to it the same quirks applied to the Silicon Image 3726. Specifically
fixes the repeated timeout/reset process which previously afflicted
the 3726, as described from line 290. Slightly based on notes from:
https://bugzilla.redhat.com/show_bug.cgi?id=890237
Signed-off-by: Terry Suereth <terry.suereth@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Some SGPIO PICs don't follow the standard very well and expect a certain
number of clock cycles or port frames in each SGPIO pattern. Add two
optional parameters in the DTB that can provide the number of extra
clock cycles to be sent before and after SGPIO pattern. Read those
parameters from the DTB and send the extra clock cycles.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Some board designs do not drive the SATA transmit lines within the
specification. The ECME can provide override settings, on a per board
basis, to bring the transmit lines within spec. Read those settings
from the DTB and program them in.
At the time of submission, no production hardware requires this patch.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tejun Heo <tj@kernel.org>
The ACTIVITY and ERROR signals were reversed in the original commit.
Fix that so that hard drive activity does not show up on the error
light, and attempts to indicate that the hard drive is failing do
not show up as hard drive activity. This fixes a fairly serious
functional bug in the driver, but failing to apply this patch will
not cause any stability issues on the system.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Added missing __iomem annotation and staticized local symbol
in order to fix the following sparse warnings:
drivers/ata/pata_samsung_cf.c:244:14: warning: symbol 'pata_s3c_data_xfer' was not declared. Should it be static?
drivers/ata/pata_samsung_cf.c:423:20: warning: incorrect type in argument 1 (different address spaces)
drivers/ata/pata_samsung_cf.c:423:20: expected void const volatile [noderef] <asn:2>*addr
drivers/ata/pata_samsung_cf.c:423:20: got void *
drivers/ata/pata_samsung_cf.c:425:9: warning: incorrect type in argument 2 (different address spaces)
drivers/ata/pata_samsung_cf.c:425:9: expected void volatile [noderef] <asn:2>*addr
drivers/ata/pata_samsung_cf.c:425:9: got void *
drivers/ata/pata_samsung_cf.c:448:37: warning: incorrect type in argument 1 (different address spaces)
drivers/ata/pata_samsung_cf.c:448:37: expected void *s3c_ide_regbase
drivers/ata/pata_samsung_cf.c:448:37: got void [noderef] <asn:2>*ide_addr
drivers/ata/pata_samsung_cf.c:463:37: warning: incorrect type in argument 1 (different address spaces)
drivers/ata/pata_samsung_cf.c:463:37: expected void *s3c_ide_regbase
drivers/ata/pata_samsung_cf.c:463:37: got void [noderef] <asn:2>*ide_addr
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
These local symbols are used only in this file.
Fix the following sparse warnings:
drivers/ata/pata_arasan_cf.c:657:6: warning: symbol 'arasan_cf_error_handler' was not declared. Should it be static?
drivers/ata/pata_arasan_cf.c:686:14: warning: symbol 'arasan_cf_qc_issue' was not declared. Should it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
If CONFIG_HAVE_CLK is not selected, then all the clk API turn out
into no-ops. In other words, there's no need to have the ifdefs.
The only side-effect of this patch is the extra tiny kmalloc,
but that's not enough reason to have such ugly ifdefs all around
the code.
tj: Slightly massaged comment as per Andrew Lunn.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Tejun Heo <tj@kernel.org>
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
There are several places in the tree where ACPI_STATE_D3 is used
instead of ACPI_STATE_D3_COLD which should be used instead for
clarity. Modify them all to use ACPI_STATE_D3_COLD as appropriate.
[The definition of ACPI_STATE_D3 itself cannot go away at this point
as it is part of ACPICA.]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Enable auto loading by udev when pata_imx is compiled as a module.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
These forward declarations are no longer needed, and are probably
historical left-over.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
ahci_imx makes use of regmap but the dependency wasn't specified in
Kconfig leading build failures if CONFIG_AHCI_IMX is enabled but
CONFIG_MFD_SYSCON is not. Add the Kconfig dependency.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Commit 7381fe737 "libata-acpi: remove redundent code for power resource
handling" removed ata_acpi_(un)bind but left their prototypes in libata.h,
so remove them.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
imx6q contains one Synopsys AHCI SATA controller, But it can't share
ahci_platform driver with other controllers because there are some
misalignments of the generic AHCI controller - the bits definitions of
the HBA registers, the Vendor Specific registers, the AHCI PHY clock
and the AHCI signals adjustment window(GPR13 register).
- CAP_SSS(bit20) of the HOST_CAP is writable, default value is '0',
should be configured to be '1'
- bit0 (only one AHCI SATA port on imx6q) of the HOST_PORTS_IMPL
should be set to be '1'.(default 0)
- One Vendor Specific register HOST_TIMER1MS(offset:0xe0) should be
configured regarding to the frequency of AHB bus clock.
- Configurations of the AHCI PHY clock, and the signal parameters of
the GPR13
Setup its own ahci sata driver, contained the imx6q specific
initialized codes, re-use the generic ahci_platform driver, and keep
the generic ahci_platform driver clean as much as possible.
tj: patch description reformatted
Signed-off-by: Richard Zhu <r65037@freescale.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
commit b29900e6 (AHCI: Make distinct names for ports in /proc/interrupts)
introuded a regression, which resulted Null pointer dereference for achi
host with dummy ports. For ahci ports, when the port is dummy port, its
private_data will be NULL, as ata_dummy_port_ops doesn't support ->port_start.
changes in v2: use pp to check dummy ports, update comments
Reported-and-tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Xiaotian Feng <xtfeng@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alexander Gordeev <agordeev@redhat.com>
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
sata_inic162x never reached a state where it's reliable enough for
production use and data corruption is a relatively common occurrence.
Make the driver generate warning about the issues and mark the Kconfig
option as experimental.
If the situation doesn't improve, we'd be better off making it depend
on CONFIG_BROKEN. Let's wait for several cycles and see if the kernel
message draws any attention.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Martin Braure de Calignon <braurede@free.fr>
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Reported-by: risc4all@yahoo.com
The usage of strict_strtol() is not preferred, because
strict_strtol() is obsolete. Thus, kstrtol() should be
used.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
There is a patch b55f84e2d5 "ata_piix: Fix DVD
not dectected at some Haswell platforms" to fix an issue of DVD not
recognized on Haswell Desktop platform with Lynx Point.
Recently, it is also found the same issue at some platformas with Wellsburg PCH.
So deliver a similar patch to fix it by disables 32bit PIO in IDE mode.
Signed-off-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
ahci_hardreset() and ahci_p5wdh_hardreset() use bare numbers for the
BSY bit of the ATA status register, despite it's #define'd in
<linux/ata.h>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Commit 30dcf76acc "libata: migrate ACPI code over to new bindings"
mistakenly dropped the code to register hotplug notificaion handler
for ATA port/devices, causing regression for people using ATA bay,
as kernel bug #59871 shows.
Fix this by adding back the hotplug notification handler registration
code. Since this code has to be run once and notification needs to
be installed on every ATA port/devices handle no matter if there is
actual device attached, we can't do this in binding time for ATA
device ACPI handle, as the binding only occurs when a SCSI device is
created, i.e. there is device attached. So introduce the
ata_acpi_hotplug_init() function to loop scan all ATA ACPI handles
and if it is available, install the notificaion handler for it during
ATA init time.
With the ATA ACPI handle binding to SCSI device tree, it is possible
now that when the SCSI hotplug work removes the SCSI device, the ACPI
unbind function will find that the corresponding ACPI device has
already been deleted by dock driver, causing a scaring message like:
[ 128.263966] scsi 4:0:0:0: Oops, 'acpi_handle' corrupt
Fix this by waiting for SCSI hotplug task finish in our notificaion
handler, so that the removal of ACPI device done in ACPI unbind
function triggered by the removal of SCSI device is run earlier when
ACPI device is still available.
[rjw: Rebased]
References: https://bugzilla.kernel.org/show_bug.cgi?id=59871
Reported-bisected-and-tested-by: Dirk Griesbach <spamthis@freenet.de>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: 3.6+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There are some SATA controllers which have both devices 0 and 1 but this module
just zeroes out taskfile and sets then ATA_TFLAG_DEVICE (not sure that's needed)
which could lead to a wrong device being selected just before issuing command.
Thus we should call ata_tf_init() which sets up the device register value
properly, like all other users of ata_exec_internal() do...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This patch adds the AHCI-mode SATA DeviceIDs for the Intel Coleto Creek PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This patch adds the IDE-mode SATA DeviceIDs for the Intel Coleto Creek PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
- Remove duplicate Medium Error Entry.
- Fix translations to match SAT2 translation table.
- Remove warning messages when translation is not found when decoding
error or status register.
- Goes through status register decoding when only ABRT bit is set in
error register.
Tested: When a disk fails, it sets
Status = 0x71 [DRDY DF ERR] , Error = 0x4 [ABRT]
This patch will make the sense key HARDWARE_ERROR instead.
When there is a simple command syntax error:
Status = 0x51 [DRDY ERR] , Error = 0x4 [ABRT]
The sense key remains ABORTED_COMMAND.
tj: Some updates to the description and comments.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch adds the compatible string of the exynos5440 sata controller
compliant with the ahci 1.3 and sata 3.0 specification.
changes in v2:
changed the compatible string by adding the actual IP
owners name instead of the SoC vendor name.
Signed-off-by: Girish K S <ks.giri@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
For some reason, a lot of port-multipliers have issues with softreset.
SIMG [34]7x series port-multipliers have been quite erratic in this
regard. I recall that it was better with some firmware revisions and
the current list of quirks worked fine for a while. I think it got
worse with later firmwares or maybe my test coverage wasn't good
enough. Anyways, HPA is reporting that his 3726 setup suffers SRST
failures and then the PMP gets confused and fails to probe the last
port.
The hope was that we try to stick to the standard as much as possible
and soonish the PMPs and their firmwares will improve in quality, so
the quirk list was kept to minimum. Well, it seems like that's never
gonna happen.
Let's set NO_SRST for all [34]7x PMPs so that whatever remaining
userbase of the device suffer the least. Maybe we should do the same
for 57xx's but unfortunately I don't have any device left to test and
I'm not even sure 57xx's have ever been made widely available, so
let's leave those alone for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: "H. Peter Anvin" <hpa@zytor.com>
Cc: stable@vger.kernel.org
ata_link_online() check in ahci_error_intr() is unnecessary, it should
be removed otherwise may lead to lockup with FBS enabled PMP.
http://marc.info/?l=linux-ide&m=137050421603272&w=2
Reported-by: Yu Liu <liuyu.ac@gmail.com>
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Highbank supports SGPIO by bit-banging out the SGPIO signals over
three GPIO pins defined in the DTB. Add support for this SGPIO
functionality.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Create a new ata_port_operations function pointer called
transmit_led_message and give it the default value of
ahci_transmit_led_message. This allows AHCI controllers with
non-standard LED interfaces to use the existing em_ interface.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
When compiling the driver with gcc 4.8, it gives the following warning:
drivers/ata/sata_rcar.c: In function `sata_rcar_thaw':
drivers/ata/sata_rcar.c:183:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
Fix the warning by explicit cast of the 'unsigned long' value to 'u32'.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Richard Zhu