diff options
Diffstat (limited to 'drivers/usb/host')
-rw-r--r-- | drivers/usb/host/Kconfig | 56 | ||||
-rw-r--r-- | drivers/usb/host/Makefile | 1 | ||||
-rw-r--r-- | drivers/usb/host/ehci-uniphier.c | 39 |
3 files changed, 96 insertions, 0 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig new file mode 100644 index 0000000..30d1457 --- /dev/null +++ b/drivers/usb/host/Kconfig @@ -0,0 +1,56 @@ +# +# USB Host Controller Drivers +# +comment "USB Host Controller Drivers" + +config USB_XHCI_HCD + bool "xHCI HCD (USB 3.0) support" + ---help--- + The eXtensible Host Controller Interface (xHCI) is standard for USB 3.0 + "SuperSpeed" host controller hardware. + +config USB_XHCI + bool + default USB_XHCI_HCD + ---help--- + TODO: rename after most boards switch to Kconfig + +if USB_XHCI_HCD + +endif + +config USB_EHCI_HCD + bool "EHCI HCD (USB 2.0) support" + ---help--- + The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0 + "high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware. + If your USB host controller supports USB 2.0, you will likely want to + configure this Host Controller Driver. + + EHCI controllers are packaged with "companion" host controllers (OHCI + or UHCI) to handle USB 1.1 devices connected to root hub ports. Ports + will connect to EHCI if the device is high speed, otherwise they + connect to a companion controller. If you configure EHCI, you should + probably configure the OHCI (for NEC and some other vendors) USB Host + Controller Driver or UHCI (for Via motherboards) Host Controller + Driver too. + + You may want to read <file:Documentation/usb/ehci.txt>. + +config USB_EHCI + bool + default USB_EHCI_HCD + ---help--- + TODO: rename after most boards switch to Kconfig + +if USB_EHCI_HCD + +config USB_EHCI_UNIPHIER + bool "Support for Panasonic UniPhier on-chip EHCI USB controller" + depends on ARCH_UNIPHIER + default y + ---help--- + Enables support for the on-chip EHCI controller on Panasonic + UniPhier SoCs. + +endif diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 1c35929..c11b551 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -37,6 +37,7 @@ obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o obj-$(CONFIG_USB_EHCI_SPEAR) += ehci-spear.o obj-$(CONFIG_USB_EHCI_SUNXI) += ehci-sunxi.o obj-$(CONFIG_USB_EHCI_TEGRA) += ehci-tegra.o +obj-$(CONFIG_USB_EHCI_UNIPHIER) += ehci-uniphier.o obj-$(CONFIG_USB_EHCI_VCT) += ehci-vct.o obj-$(CONFIG_USB_EHCI_RMOBILE) += ehci-rmobile.o obj-$(CONFIG_USB_EHCI_ZYNQ) += ehci-zynq.o diff --git a/drivers/usb/host/ehci-uniphier.c b/drivers/usb/host/ehci-uniphier.c new file mode 100644 index 0000000..77f6c9d --- /dev/null +++ b/drivers/usb/host/ehci-uniphier.c @@ -0,0 +1,39 @@ +/* + * Copyright (C) 2014 Panasonic Corporation + * Author: Masahiro Yamada <yamada.m@jp.panasonic.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <usb.h> +#include <asm/arch/ehci-uniphier.h> +#include "ehci.h" + +/* + * Create the appropriate control structures to manage + * a new EHCI host controller. + */ +int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr, + struct ehci_hcor **hcor) +{ + struct ehci_hccr *cr; + struct ehci_hcor *or; + + uniphier_ehci_reset(index, 0); + + cr = (struct ehci_hccr *)(uniphier_ehci_platdata[index].base); + or = (void *)cr + HC_LENGTH(ehci_readl(&cr->cr_capbase)); + + *hccr = cr; + *hcor = or; + + return 0; +} + +int ehci_hcd_stop(int index) +{ + uniphier_ehci_reset(index, 1); + + return 0; +} |