[PATCHv4 00/20] USB support for Armada 38x and Armada 375
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Wed May 7 06:52:06 PDT 2014
Hello,
This patch set adds the USB support for the Armada 38x and Armada 375
SOCs. These SoCs use an xHCI but still need specific initialization,
mainly to setup the MBus memory windows. They also have another USB
controller for EHCI, identical to the one used on other mvebu SOCs.
This series is also available in
the branch USB-375-38x-3.15-rc1-V4
https://github.com/MISL-EBU-System-SW/mainline-public.git
Changes since v3:
* Additional patch that removes the use of of_irq_parse_and_map() in
ehci-orion, and just uses platform_get_irq() instead, to avoid a
different case between DT and non-T.
* Additional patch that renames the ehci-orion error handling goto
labels to have more meaningful names, in preparation for handling
of additional error cases in followup patches.
* Additional patch to update the ehci-orion Device Tree binding
documentation.
* Merge of 375/38x XHCI support patches: one patch for the driver,
one patch for the Device Tree binding documentation (instead of one
patch of these, for each SoC).
* Update of the XHCI Device Tree binding documentation to indicate
the new optional clocks property.
* Update of armada-375.dtsi to add missing spaces in the phy-names
definition.
* Update of armada-38x.dtsi to use 0x4000 instead of 0x3fff for the
register area length. Noticed by Andrew Lunn.
* Changed the PHY driver Kconfig option to only be enabled either
when MACH_ARMADA_375 or COMPILE_TEST are enabled. In the previous
version, the PHY driver was always enabled, regardless of the
platform.
* Various improvements to the PHY driver:
- Rename USB2_PHY_CONFIG_ENABLE to USB2_PHY_CONFIG_DISABLE, as
suggested by Ezequiel Garcia.
- Simplify the logic of armada375_usb_phy_init() by handling the
!cluster_phy->enable case first.
- Use devm_ioremap_resource() in the ->probe() function instead of
of_iomap().
- Bail out from ->probe() when a PHY cannot be created.
- Fix typos in comments.
* Reworded the Kconfig prompt and help text of XHCI_MVEBU to indicate
that it's for both 375 and 38x (it was only indicating 38x until
now).
* Changed the Makefile bit of the xhci-mvebu driver according to the
suggestion of Felipe Balbi, so that things work properly when
CONFIG_USB_XHCI_MVEBU is 'm'.
* Various improvements in the ehci-orion driver:
- Use better goto labels for error handling in ->probe().
- Use devm_phy_optional_get() instead of devm_phy_get(), which
allows to handle EPROBE_DEFER cases nicely.
- Call phy_power_off() when needed (probe error handling, and
remove).
- Use __initconst instead of __initdata for override structure, as
noticed by checkpatch.
- Fix use after free errors noticed by Felipe Balbi.
* Various improvements to the XHCI driver:
- Don't make xhci_mvebu_mbus_config() an __init function, since
it's called from probe(), which isn't in __init.
- Don't use the buggy 'priv[0]' solution implemented in the
previous version of the patch set (see in
http://lists.infradead.org/pipermail/linux-arm-kernel/2014-May/253871.html
the details of why it doesn't work). Instead, add a 'struct
clk*' field in xhci_hcd to support the clock in xhci-plat,
exactly like xhci_hcd has msix_count and msix_entries for
xhci-pci.
- Misc minor code style improvements.
Thomas
Gregory CLEMENT (17):
usb: ehci-orion: fix clock reference leaking
usb: ehci-orion: add optional PHY support
usb: host: xhci-plat: sort the headers in alphabetic order
usb: host: xhci-plat: add clock support
usb: host: xhci-plat: add support for the Armada 375/38x XHCI
controllers
Documentation: dt-bindings: update xhci-platform DT binding
phy: add support for USB cluster on the Armada 375 SoC
Documentation: dt-bindings: document the Armada 375 USB cluster
binding
ARM: mvebu: add USB3 support for Armada 38x
ARM: mvebu: add USB3 support for Armada 375
ARM: configs: enable XHCI mvebu support in mvebu_v7_defconfig
ARM: configs: enable XHCI mvebu support in multi_v7_defconfig
ARM: mvebu: add Device Tree description of xHCI controllers on Armada
38x
ARM: mvebu: add Device Tree description of the EHCI controller on
Armada 38x
ARM: mvebu: add Device Tree description of USB cluster controller on
Armada 375
ARM: mvebu: add Device Tree description of the xHCI controller on
Armada 375
ARM: mvebu: add Device Tree description of the EHCI controller on
Armada 375
Thomas Petazzoni (3):
usb: ehci-orion: use platform_get_irq() for DT probing
usb: ehci-orion: rename error goto labels in ehci_orion_drv_probe()
Documentation: dt-bindings: update ehci-orion binding documentation
.../bindings/phy/armada-375-usb-phy-cluster.txt | 19 +++
.../devicetree/bindings/usb/ehci-orion.txt | 5 +
Documentation/devicetree/bindings/usb/usb-xhci.txt | 7 +-
arch/arm/boot/dts/armada-375-db.dts | 8 ++
arch/arm/boot/dts/armada-375.dtsi | 34 +++++
arch/arm/boot/dts/armada-385-db.dts | 12 ++
arch/arm/boot/dts/armada-385-rd.dts | 4 +
arch/arm/boot/dts/armada-38x.dtsi | 25 ++++
arch/arm/configs/multi_v7_defconfig | 1 +
arch/arm/configs/mvebu_v7_defconfig | 1 +
arch/arm/mach-mvebu/Kconfig | 2 +
drivers/phy/Kconfig | 6 +
drivers/phy/Makefile | 1 +
drivers/phy/phy-armada375-usb2.c | 157 +++++++++++++++++++++
drivers/usb/host/Kconfig | 8 ++
drivers/usb/host/Makefile | 3 +
drivers/usb/host/ehci-orion.c | 92 ++++++++----
drivers/usb/host/xhci-mvebu.c | 70 +++++++++
drivers/usb/host/xhci-mvebu.h | 21 +++
drivers/usb/host/xhci-plat.c | 42 +++++-
drivers/usb/host/xhci.h | 2 +
21 files changed, 488 insertions(+), 32 deletions(-)
create mode 100644 Documentation/devicetree/bindings/phy/armada-375-usb-phy-cluster.txt
create mode 100644 drivers/phy/phy-armada375-usb2.c
create mode 100644 drivers/usb/host/xhci-mvebu.c
create mode 100644 drivers/usb/host/xhci-mvebu.h
--
1.9.2
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