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| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2014-11-07 18:48:33 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2014-11-12 00:21:28 +0900 |
| commit | 048899ba8c54bc3e094185d69d6a62d7e7f9cf30 (patch) | |
| tree | a28bf7a0be3c31389d722f5bccaac6643c89d677 /drivers | |
| parent | 113ef59e45b35f95b3b6b914bae671d61721e9ca (diff) | |
| download | talos-obmc-uboot-048899ba8c54bc3e094185d69d6a62d7e7f9cf30.tar.gz talos-obmc-uboot-048899ba8c54bc3e094185d69d6a62d7e7f9cf30.zip | |
usb: UniPhier: add UniPhier on-chip EHCI host driver support
Support EHCI host driver used on Panasonic UniPhier platform.
Since Device Tree is not supported on UniPhier yet, the base address
of USB cores are passed from board files (platdevice.c).
TODO for me:
Move the base address to device trees.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/usb/host/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-uniphier.c | 39 |
3 files changed, 48 insertions, 0 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 8a6496a6ef..30d1457638 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -45,4 +45,12 @@ config USB_EHCI 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 1c3592914d..c11b551620 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 0000000000..77f6c9d9d1 --- /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; +} |
