arch/arm/mach-feroceon-kw2/usb.c

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********************************************************************************
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If you received this File from Marvell, you may opt to use, redistribute and/or
modify this File in accordance with the terms and conditions of the General
Public License Version 2, June 1991 (the "GPL License"), a copy of which is
available along with the File in the license.txt file or by writing to the Free
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*******************************************************************************/

#include <linux/autoconf.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/init.h>
#include <linux/platform_device.h>
                                                                                                                             
#include <asm/io.h>
#include <asm/irq.h>

#include "mvCommon.h"
#include "mvDebug.h"
#include "ctrlEnv/mvCtrlEnvLib.h"
#include "mvSysUsbApi.h"
#include "usb/mvUsbRegs.h"
#include "usb/mvUsb.h"

extern u32 mvIsUsbHost;

#define MV_USB_DMA_MASK     0xffffffff

static char usb_dev_name[]  = "mv_udc";
static char usb_host_name[] = "ehci_marvell";
static char usb_bus_name[]  = "platform";


static void mv_usb_release(struct device *dev)
{
    struct platform_device  *pdev = to_platform_device(dev); 

    /* normally not freed */
    printk("mv_usb_release\n");

    kfree(pdev->resource);
    kfree(pdev->dev.dma_mask);
    kfree(pdev);
} 


static int __init   mv_usb_init(void)
{
	int                     status, dev, num, isHost;
	char*                   name_ptr;
	struct platform_device* mv_usb_dev_ptr;

	num = mvCtrlUsbMaxGet(); 
	for(dev=0; dev<num; dev++)
	{
		if (MV_FALSE == mvCtrlPwrClckGet(USB_UNIT_ID, dev))
		{
			printk("\nWarning Integrated USB %d is Powered Off\n",dev);
			continue;	    
		}

		isHost = mvIsUsbHost & (1 << dev);

		if(isHost)
			name_ptr = usb_host_name;
		else
			name_ptr = usb_dev_name;

		status = mvSysUsbInit(dev, isHost);

		mv_usb_dev_ptr = kmalloc(sizeof(struct platform_device), GFP_KERNEL);
		if(mv_usb_dev_ptr == NULL)
		{
			printk("Can't allocate platform_device structure - %d bytes\n",
					sizeof(struct platform_device) );
			return 1;
		}
		memset(mv_usb_dev_ptr, 0, sizeof(struct platform_device) );

		mv_usb_dev_ptr->name               = name_ptr;
		mv_usb_dev_ptr->id                 = PCI_VENDOR_ID_MARVELL | (MV_USB_VERSION << 16) | (dev << 24);

		mv_usb_dev_ptr->num_resources  = 2;

		mv_usb_dev_ptr->resource = (struct resource*)kmalloc(2*sizeof(struct resource), GFP_KERNEL);
		if(mv_usb_dev_ptr->resource == NULL)
		{
			printk("Can't allocate 2 resource structure - %d bytes\n",
					2*sizeof(struct resource) );
			kfree(mv_usb_dev_ptr);
			return 1;
		}
		memset(mv_usb_dev_ptr->resource, 0, 2*sizeof(struct resource));

		mv_usb_dev_ptr->resource[0].start =
			( INTER_REGS_BASE | MV_USB_CORE_CAP_LENGTH_REG(dev));
		mv_usb_dev_ptr->resource[0].end   =
			((INTER_REGS_BASE | MV_USB_CORE_CAP_LENGTH_REG(dev)) + 4096);
		mv_usb_dev_ptr->resource[0].flags = IORESOURCE_DMA;

		mv_usb_dev_ptr->resource[1].start = USB_IRQ_NUM;
		mv_usb_dev_ptr->resource[1].flags = IORESOURCE_IRQ;

		mv_usb_dev_ptr->dev.dma_mask           = kmalloc(sizeof(u64), GFP_KERNEL);
		*mv_usb_dev_ptr->dev.dma_mask          = MV_USB_DMA_MASK;

		mv_usb_dev_ptr->dev.coherent_dma_mask  = ~0;
		mv_usb_dev_ptr->dev.release            = mv_usb_release;
		dev_set_name(&mv_usb_dev_ptr->dev, "%s", usb_bus_name);

		printk("Marvell USB %s controller #%d: %p\n",
				isHost ? "EHCI Host" : "Gadget", dev, mv_usb_dev_ptr);

		status = platform_device_register(mv_usb_dev_ptr);
		if (status)
		{
			printk("Can't register Marvell USB EHCI controller #%d, status=%d\n", 
					dev, status);
			return status;
		}
	}
	return 0;
}

subsys_initcall(mv_usb_init);