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8466489ef5
linux/drivers/usb/host
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Marc Zyngier 8466489ef5 xhci: Reset Renesas uPD72020x USB controller for 32-bit DMA issue 
The Renesas uPD72020x XHCI controller seems to suffer from a really
annoying bug, where it may retain some of its DMA programming across a XHCI
reset, and despite the driver correctly programming new DMA addresses.
This is visible if the device has been using 64-bit DMA addresses, and is
then switched to using 32-bit DMA addresses.  The top 32 bits of the
address (now zero) are ignored are replaced by the 32 bits from the
*previous* programming.  Sticking with 64-bit DMA always works, but doesn't
seem very appropriate.

A PCI reset of the device restores the normal functionality, which is done
at probe time.  Unfortunately, this has to be done before any quirk has
been discovered, hence the intrusive nature of the fix.

Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
CC: stable@vger.kernel.org	# v4.11+
2017-08-02 12:05:07 -05:00
..
whci whci: Remove deprecated create_singlethread_workqueue 2016-08-15 16:25:58 +02:00
bcma-hcd.c USB: bcma: drop Northstar PHY 2.0 initialization code 2016-09-27 12:20:17 +02:00
ehci-atmel.c usb: ehci-atmel: use __maybe_unused to hide pm functions 2016-03-03 20:37:41 -08:00
ehci-dbg.c usb: add CONFIG_USB_PCI for system have both PCI HW and non-PCI based USB HW 2017-03-17 13:16:56 +09:00
ehci-exynos.c usb: host: ehci-exynos: Handle return value of clk_prepare_enable 2017-06-13 10:48:24 +02:00
ehci-fsl.c usb: ehci: fsl: use bus->sysdev for DMA configuration 2017-03-23 08:20:21 +01:00
ehci-fsl.h
ehci-grlib.c
ehci-hcd.c usb: host: Remove remaining pci_pool in comments 2017-03-16 18:03:31 +09:00
ehci-hub.c fsl/usb: Workarourd for USB erratum-A005697 2016-12-05 15:13:58 +01:00
ehci-mem.c usb: ehci: use bus->sysdev for DMA configuration 2017-03-23 08:20:21 +01:00
ehci-msm.c usb: host: ehci-msm: Conditionally call ehci suspend/resume 2016-06-07 22:15:25 -07:00
ehci-mv.c
ehci-mxc.c
ehci-omap.c usb/host/: const data must use __initconst not __initdata 2016-04-28 12:35:36 -07:00
ehci-orion.c usb: orion-ehci: Add support for the Armada 3700 2017-03-17 13:32:59 +09:00
ehci-pci.c USB: EHCI: merge all cases that disable the IO watchdog 2016-10-24 14:36:25 +02:00
ehci-platform.c USB: ehci-platform: fix companion-device leak 2017-05-17 11:52:44 +02:00
ehci-pmcmsp.c
ehci-ppc-of.c
ehci-ps3.c
ehci-q.c usb: host: ehci: remove unnecessary max_packet() macro 2016-11-03 10:38:24 +02:00
ehci-sched.c usb: host: remove unnecessary null check 2017-05-17 12:20:53 +02:00
ehci-sh.c
ehci-spear.c usb/host/: const data must use __initconst not __initdata 2016-04-28 12:35:36 -07:00
ehci-st.c usb: host: ehci-st: Inform the reset framework that our reset line may be shared 2016-06-30 07:44:21 +01:00
ehci-sysfs.c
ehci-tegra.c usb: host: ehci-tegra: Avoid getting the same reset twice 2016-06-07 22:15:25 -07:00
ehci-tilegx.c
ehci-timer.c usb: Make use of ktime_* comparison functions 2017-06-03 18:08:04 +09:00
ehci-w90x900.c USB: EHCI: ehci-w90x900: remove unuseful functions 2016-11-29 17:36:43 +01:00
ehci-xilinx-of.c
ehci.h fsl/usb: Workarourd for USB erratum-A005697 2016-12-05 15:13:58 +01:00
fhci-dbg.c
fhci-hcd.c usb: host: fhci-hcd: don't print on ENOMEM 2016-08-30 19:17:37 +02:00
fhci-hub.c
fhci-mem.c
fhci-q.c
fhci-sched.c USB: FHCI: avoid redundant condition 2016-05-09 13:08:46 +02:00
fhci-tds.c
fhci.h
fotg210-hcd.c usb: Make use of ktime_* comparison functions 2017-06-03 18:08:04 +09:00
fotg210.h
fsl-mph-dr-of.c fsl/usb: Workarourd for USB erratum-A005697 2016-12-05 15:13:58 +01:00
hwa-hc.c
imx21-dbg.c
imx21-hcd.c
imx21-hcd.h
isp116x-hcd.c
isp116x.h
isp1362-hcd.c usb: Convert pr_warning to pr_warn 2016-11-03 10:38:36 +02:00
isp1362.h
Kconfig usb: host: ohci-omap3: Remove driver in favor of ohci-platform 2017-06-03 18:08:05 +09:00
Makefile usb: host: ohci-omap3: Remove driver in favor of ohci-platform 2017-06-03 18:08:05 +09:00
max3421-hcd.c usb: host: max3421-hcd: don't print on ENOMEM 2016-08-30 19:17:37 +02:00
ohci-at91.c usb: ohci-at91: Do not drop unhandled USB suspend control requests 2017-03-09 10:22:08 +01:00
ohci-da8xx.c USB: ohci: da8xx: Resume the entire host controller 2016-11-29 17:31:36 +01:00
ohci-dbg.c
ohci-exynos.c usb: host: ohci-exynos: Decrese node refcount on exynos_ehci_get_phy() error paths 2017-01-10 17:00:42 +01:00
ohci-hcd.c ohci-pci: add qemu quirk 2017-03-23 08:13:21 +01:00
ohci-hub.c ohci-hub: fix typo in dbg_port macro 2017-02-10 12:20:57 +01:00
ohci-mem.c USB: OHCI: use dma_pool_zalloc 2016-11-21 17:33:40 +01:00
ohci-nxp.c USB: OHCI: nxp: fix code warnings 2016-12-08 17:50:09 +01:00
ohci-omap.c USB: ohci-omap: defer probe if PHY is missing 2017-01-10 17:00:41 +01:00
ohci-pci.c ohci-pci: add qemu quirk 2017-03-23 08:13:21 +01:00
ohci-platform.c usb: host: ohci-platform: Add support for omap3 and later 2017-06-03 18:08:04 +09:00
ohci-ppc-of.c
ohci-ps3.c
ohci-pxa27x.c usb: host: ohci-pxa27x: Handle return value of clk_prepare_enable 2017-06-29 14:49:06 +02:00
ohci-q.c USB: OHCI: Don't mark EDs as ED_OPER if scheduling fails 2016-06-07 22:15:25 -07:00
ohci-s3c2410.c USB: OHCI: ohci-s3c2410: remove useless functions 2016-12-05 16:32:51 +01:00
ohci-sa1111.c usb: ohci-sa1111: remove mach/hardware.h include 2016-08-30 19:24:59 +02:00
ohci-sm501.c
ohci-spear.c
ohci-st.c usb: host: ohci-st: Inform the reset framework that our reset line may be shared 2016-06-30 07:44:20 +01:00
ohci-tilegx.c
ohci-tmio.c
ohci.h ohci-pci: add qemu quirk 2017-03-23 08:13:21 +01:00
oxu210hp-hcd.c usb: host: Remove remaining pci_pool in comments 2017-03-16 18:03:31 +09:00
oxu210hp.h
pci-quirks.c xhci: Reset Renesas uPD72020x USB controller for 32-bit DMA issue 2017-08-02 12:05:07 -05:00
pci-quirks.h xhci: Reset Renesas uPD72020x USB controller for 32-bit DMA issue 2017-08-02 12:05:07 -05:00
r8a66597-hcd.c usb: r8a66597-hcd: select a different endpoint on timeout 2017-05-17 11:52:44 +02:00
r8a66597.h
sl811_cs.c
sl811-hcd.c
sl811.h
ssb-hcd.c
u132-hcd.c
uhci-debug.c
uhci-grlib.c
uhci-hcd.c usb/uhci: Add support for Aspeed BMC SoCs 2017-05-25 14:30:13 +02:00
uhci-hcd.h usb/uhci: Add support for Aspeed BMC SoCs 2017-05-25 14:30:13 +02:00
uhci-hub.c
uhci-pci.c PM / core: Drop run_wake flag from struct dev_pm_info 2017-06-28 01:52:52 +02:00
uhci-platform.c usb/uhci: Add support for Aspeed BMC SoCs 2017-05-25 14:30:13 +02:00
uhci-q.c
xhci-dbg.c usb: xhci: remove xhci_dbg_ctx() 2017-04-08 12:17:42 +02:00
xhci-ext-caps.h usb: host: xhci: remove unneded semicolon 2017-01-25 10:59:06 +01:00
xhci-hub.c usb: xhci: fix spinlock recursion for USB2 test mode 2017-07-20 14:40:36 +02:00
xhci-mem.c Merge 4.12-rc6 into usb-next 2017-06-20 10:16:07 +08:00
xhci-mtk-sch.c usb: host: xhci: purge GET_MAX_PACKET() 2016-11-03 10:38:22 +02:00
xhci-mtk.c usb: xhci: remove dummy extra_priv_size for size of xhci_hcd struct 2017-03-09 18:00:39 +01:00
xhci-mtk.h usb: xhci-mtk: add reference clock 2017-01-19 10:37:16 +01:00
xhci-mvebu.c usb: host: xhci: plat: change type of mvebu init_quirk() 2016-04-26 16:08:02 -07:00
xhci-mvebu.h usb: host: xhci: plat: change type of mvebu init_quirk() 2016-04-26 16:08:02 -07:00
xhci-pci.c xhci: Reset Renesas uPD72020x USB controller for 32-bit DMA issue 2017-08-02 12:05:07 -05:00
xhci-plat.c usb: host: xhci-plat: propagate return value of platform_get_irq() 2017-05-18 15:19:42 +02:00
xhci-plat.h usb: host: xhci-plat: add resume_quirk() 2017-04-19 19:59:17 +02:00
xhci-rcar.c usb: host: xhci-plat: set resume_quirk() for R-Car controllers 2017-04-19 19:59:17 +02:00
xhci-rcar.h usb: host: xhci-plat: set resume_quirk() for R-Car controllers 2017-04-19 19:59:17 +02:00
xhci-ring.c xhci: Fix NULL pointer dereference when cleaning up streams for removed host 2017-07-20 14:40:35 +02:00
xhci-tegra.c usb: xhci: remove dummy extra_priv_size for size of xhci_hcd struct 2017-03-09 18:00:39 +01:00
xhci-trace.c
xhci-trace.h usb: xhci: add xhci_log_ring trace events 2017-04-08 12:17:41 +02:00
xhci.c xhci: fix memleak in xhci_run() 2017-07-20 14:40:36 +02:00
xhci.h xhci: Bad Ethernet performance plugged in ASM1042A host 2017-07-20 14:40:35 +02:00