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path: root/drivers/usb/host/octeon2-common.c
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* usb: Configure octeon2 glue logic for proper uSOF cycle period.David Daney2011-05-031-0/+3
| | | | | | | | | The reset value of the uSOF cycle period is incorrect. Set it to 60,000 bits. Without this, several commercial USB flash memory devices and hubs fail to work properly. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: octeon2-common.c: Configure ports for proper electrical characteristics.David Daney2011-05-031-1/+3
| | | | | | | | Additional PHY tuning is needed to obtain compliant 'eye' diagram electrical characteristics. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: octeon2-common: Don't reinitialize the clocks.David Daney2011-05-031-14/+24
| | | | | | | | | | | | | | The UCTL clock initialization will cause the ehci and ohci blocks to become inoperable if the clocks are reinitialized. Check to see if the clocks have already been initialized. Also use a mutex to protect the clock initialization code so that there can be no attempt to use the clocks before they are fully configured. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Add EHCI and OHCH glue for OCTEON II SOCs.David Daney2010-10-291-0/+185
The OCTEON II SOC has USB EHCI and OHCI controllers connected directly to the internal I/O bus. This patch adds the necessary 'glue' logic to allow ehci-hcd and ohci-hcd drivers to work on OCTEON II. The OCTEON normally runs big-endian, and the ehci/ohci internal registers have host endianness, so we need to select USB_EHCI_BIG_ENDIAN_MMIO. The ehci and ohci blocks share a common clocking and PHY infrastructure. Initialization of the host controller and PHY clocks is common between the two and is factored out into the octeon2-common.c file. Setting of USB_ARCH_HAS_OHCI and USB_ARCH_HAS_EHCI is done in arch/mips/Kconfig in a following patch. Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-usb@vger.kernel.org To: dbrownell@users.sourceforge.net Patchwork: http://patchwork.linux-mips.org/patch/1675/ Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>