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usb: add support of generic OHCI devices

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This driver is meant to be used with any OHCI-compatible host
controller in case if there's no need for platform-specific
glue such as setup of controller or PHY's power mode via
GPIOs etc.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Marek Vasut <marex@denx.de>
This commit is contained in:
Alexey Brodkin 2015-12-14 17:18:50 +03:00 committed by Marek Vasut
parent 70cc443d58
commit fee331f66c
3 changed files with 54 additions and 0 deletions
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8
drivers/usb/host/Kconfig
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@ -26,6 +26,14 @@ config USB_XHCI_UNIPHIER
endif
config USB_OHCI_GENERIC
bool "Support for generic OHCI USB controller"
depends on OF_CONTROL
depends on DM_USB
default n
---help---
Enables support for generic OHCI controller.
config USB_EHCI_HCD
bool "EHCI HCD (USB 2.0) support"
---help---

1
drivers/usb/host/Makefile
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@ -21,6 +21,7 @@ obj-$(CONFIG_USB_OHCI_S3C24XX) += ohci-s3c24xx.o
obj-$(CONFIG_USB_OHCI_EP93XX) += ohci-ep93xx.o
obj-$(CONFIG_USB_OHCI_SUNXI) += ohci-sunxi.o
obj-$(CONFIG_USB_OHCI_LPC32XX) += ohci-lpc32xx.o
obj-$(CONFIG_USB_OHCI_GENERIC) += ohci-generic.o
# echi
obj-$(CONFIG_USB_EHCI) += ehci-hcd.o

45
drivers/usb/host/ohci-generic.c Normal file
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@ -0,0 +1,45 @@
/*
* Copyright (C) 2015 Alexey Brodkin <abrodkin@synopsys.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include "ohci.h"
#if !defined(CONFIG_USB_OHCI_NEW)
# error "Generic OHCI driver requires CONFIG_USB_OHCI_NEW"
#endif
struct generic_ohci {
ohci_t ohci;
};
static int ohci_usb_probe(struct udevice *dev)
{
struct ohci_regs *regs = (struct ohci_regs *)dev_get_addr(dev);
return ohci_register(dev, regs);
}
static int ohci_usb_remove(struct udevice *dev)
{
return ohci_deregister(dev);
}
static const struct udevice_id ohci_usb_ids[] = {
{ .compatible = "generic-ohci" },
{ }
};
U_BOOT_DRIVER(ohci_generic) = {
.name = "ohci_generic",
.id = UCLASS_USB,
.of_match = ohci_usb_ids,
.probe = ohci_usb_probe,
.remove = ohci_usb_remove,
.ops = &ohci_usb_ops,
.priv_auto_alloc_size = sizeof(struct generic_ohci),
.flags = DM_FLAG_ALLOC_PRIV_DMA,
};