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MIPS: Add platform device and Kconfig for Octeon USB EHCI / OHCI 

Declare that OCTEON reference boards have both OHCI and EHCI.

Add platform devices for the corresponding hardware.

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/1676/
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney 2010-10-08 14:47:53 -07:00 committed by Ralf Baechle
parent 1643accdaa
commit 340fbb8b12
2 changed files with 106 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/Kconfig
View File

@ -694,6 +694,8 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
select HW_HAS_PCI
select ARCH_SUPPORTS_MSI
select ZONE_DMA32
select USB_ARCH_HAS_OHCI
select USB_ARCH_HAS_EHCI
help
This option supports all of the Octeon reference boards from Cavium
Networks. It builds a kernel that dynamically determines the Octeon

105
arch/mips/cavium-octeon/octeon-platform.c
View File

@ -3,13 +3,14 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2004-2009 Cavium Networks
* Copyright (C) 2004-2010 Cavium Networks
* Copyright (C) 2008 Wind River Systems
*/
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/i2c.h>
#include <linux/usb.h>
#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/platform_device.h>
@ -337,6 +338,108 @@ static int __init octeon_mgmt_device_init(void)
}
device_initcall(octeon_mgmt_device_init);
#ifdef CONFIG_USB
static int __init octeon_ehci_device_init(void)
{
struct platform_device *pd;
int ret = 0;
struct resource usb_resources[] = {
{
.flags = IORESOURCE_MEM,
}, {
.flags = IORESOURCE_IRQ,
}
};
/* Only Octeon2 has ehci/ohci */
if (!OCTEON_IS_MODEL(OCTEON_CN63XX))
return 0;
if (octeon_is_simulation() || usb_disabled())
return 0; /* No USB in the simulator. */
pd = platform_device_alloc("octeon-ehci", 0);
if (!pd) {
ret = -ENOMEM;
goto out;
}
usb_resources[0].start = 0x00016F0000000000ULL;
usb_resources[0].end = usb_resources[0].start + 0x100;
usb_resources[1].start = OCTEON_IRQ_USB0;
usb_resources[1].end = OCTEON_IRQ_USB0;
ret = platform_device_add_resources(pd, usb_resources,
ARRAY_SIZE(usb_resources));
if (ret)
goto fail;
ret = platform_device_add(pd);
if (ret)
goto fail;
return ret;
fail:
platform_device_put(pd);
out:
return ret;
}
device_initcall(octeon_ehci_device_init);
static int __init octeon_ohci_device_init(void)
{
struct platform_device *pd;
int ret = 0;
struct resource usb_resources[] = {
{
.flags = IORESOURCE_MEM,
}, {
.flags = IORESOURCE_IRQ,
}
};
/* Only Octeon2 has ehci/ohci */
if (!OCTEON_IS_MODEL(OCTEON_CN63XX))
return 0;
if (octeon_is_simulation() || usb_disabled())
return 0; /* No USB in the simulator. */
pd = platform_device_alloc("octeon-ohci", 0);
if (!pd) {
ret = -ENOMEM;
goto out;
}
usb_resources[0].start = 0x00016F0000000400ULL;
usb_resources[0].end = usb_resources[0].start + 0x100;
usb_resources[1].start = OCTEON_IRQ_USB0;
usb_resources[1].end = OCTEON_IRQ_USB0;
ret = platform_device_add_resources(pd, usb_resources,
ARRAY_SIZE(usb_resources));
if (ret)
goto fail;
ret = platform_device_add(pd);
if (ret)
goto fail;
return ret;
fail:
platform_device_put(pd);
out:
return ret;
}
device_initcall(octeon_ohci_device_init);
#endif /* CONFIG_USB */
MODULE_AUTHOR("David Daney <ddaney@caviumnetworks.com>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Platform driver for Octeon SOC");