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/*
* Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
/*!
* @defgroup USB_MX27 ARC OTG USB Driver for i.MX27
* @ingroup USB
*/
/*!
* @file mach-mx27/usb.c
*
* @brief platform related part of usb driver.
* @ingroup USB_MX27
*/
/*!
*Include files
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>
#include <linux/usb/fsl_xcvr.h>
#include <linux/usb/otg.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/arch/arc_otg.h>
extern struct platform_device *host_pdev_register(struct resource *res,
int n_res,
struct fsl_usb2_platform_data
*config);
extern int fsl_usb_host_init(struct platform_device *pdev);
extern void fsl_usb_host_uninit(struct fsl_usb2_platform_data *pdata);
extern int usbotg_init(struct platform_device *pdev);
extern void usbotg_uninit(struct fsl_usb2_platform_data *pdata);
extern int gpio_usbh1_active(void);
extern void gpio_usbh1_inactive(void);
extern int gpio_usbh2_active(void);
extern void gpio_usbh2_inactive(void);
extern int gpio_usbotg_hs_active(void);
extern void gpio_usbotg_hs_inactive(void);
extern int gpio_usbotg_fs_active(void);
extern void gpio_usbotg_fs_inactive(void);
#ifdef CONFIG_USB_EHCI_ARC_H1
/*!
* HOST1 config
*/
/* *INDENT-OFF* */
static struct fsl_usb2_platform_data usbh1_config = {
.name = "Host 1",
.platform_init = fsl_usb_host_init,
.platform_uninit = fsl_usb_host_uninit,
.usbmode = (u32) &UH1_USBMODE,
.power_budget = 500, /* 500 mA max power */
.gpio_usb_active = gpio_usbh1_active,
.gpio_usb_inactive = gpio_usbh1_inactive,
.transceiver = "serial",
};
static struct resource usbh1_resources[] = {
{
.start = (u32) (USB_H1REGS_BASE),
.end = (u32) (USB_H1REGS_BASE + 0x1ff),
.flags = IORESOURCE_MEM,
},
{
.start = INT_USB1,
.flags = IORESOURCE_IRQ,
},
};
/* *INDENT-ON* */
#endif
#ifdef CONFIG_USB_EHCI_ARC_H2
/*!
* HOST2 config
*/
/* *INDENT-OFF* */
static struct fsl_usb2_platform_data usbh2_config = {
.name = "Host 2",
.platform_init = fsl_usb_host_init,
.platform_uninit = fsl_usb_host_uninit,
.usbmode = (u32) &UH2_USBMODE,
.viewport = (u32) &UH2_ULPIVIEW,
.power_budget = 500, /* 500 mA max power */
.gpio_usb_active = gpio_usbh2_active,
.gpio_usb_inactive = gpio_usbh2_inactive,
.transceiver = "isp1504",
};
static struct resource usbh2_resources[] = {
{
.start = (u32) (USB_H2REGS_BASE),
.end = (u32) (USB_H2REGS_BASE + 0x1ff),
.flags = IORESOURCE_MEM,
},
{
.start = INT_USB2,
.flags = IORESOURCE_IRQ,
},
};
/* *INDENT-ON* */
#endif
/*!
* OTG config
*/
/* *INDENT-OFF* */
#if defined(CONFIG_USB_EHCI_ARC_OTG) || defined(CONFIG_USB_GADGET_ARC) || defined(CONFIG_OTG_BTC_ARC)
#if defined(CONFIG_MC13783_MXC)
static struct fsl_usb2_platform_data mxc_serial_host_config = {
.name = "OTG",
.platform_init = usbotg_init,
.platform_uninit = usbotg_uninit,
.usbmode = (u32) &UOG_USBMODE,
.viewport = (u32) &UOG_ULPIVIEW,
.does_otg = 1,
.operating_mode = FSL_USB2_DR_HOST,
.power_budget = 500, /* 500 mA max power */
.gpio_usb_active = gpio_usbotg_fs_active,
.gpio_usb_inactive = gpio_usbotg_fs_inactive,
.transceiver = "mc13783",
};
#elif defined(CONFIG_ISP1301_MXC)
static struct fsl_usb2_platform_data mxc_serial_host_config = {
.name = "OTG",
.platform_init = usbotg_init,
.platform_uninit = usbotg_uninit,
.usbmode = (u32) &UOG_USBMODE,
.viewport = (u32) &UOG_ULPIVIEW,
.does_otg = 0,
.operating_mode = FSL_USB2_DR_HOST,
.power_budget = 500, /* 500 mA max power */
.gpio_usb_active = gpio_usbotg_fs_active,
.gpio_usb_inactive = gpio_usbotg_fs_inactive,
.transceiver = "isp1301",
};
#endif
#if defined(CONFIG_ISP1504_MXC)
static struct fsl_usb2_platform_data mxc_isp1504_config = {
.name = "OTG",
.platform_init = usbotg_init,
.platform_uninit = usbotg_uninit,
.usbmode = (u32) &UOG_USBMODE,
.viewport = (u32) &UOG_ULPIVIEW,
.does_otg = 1,
.power_budget = 500, /* 500 mA max power */
.gpio_usb_active = gpio_usbotg_hs_active,
.gpio_usb_inactive = gpio_usbotg_hs_inactive,
.transceiver = "isp1504",
};
#endif
static struct resource otg_resources[] = {
{
.start = (u32) (USB_OTGREGS_BASE),
.end = (u32) (USB_OTGREGS_BASE + 0x1ff),
.flags = IORESOURCE_MEM,
},
{
.start = INT_USB3,
.flags = IORESOURCE_IRQ,
},
};
#endif
/* *INDENT-ON* */
#if defined(CONFIG_USB_GADGET_ARC) || defined(CONFIG_OTG_BTC_ARC)
/*!
* OTG Gadget device
*/
static void udc_release(struct device *dev)
{
/* normally not freed */
}
static u64 udc_dmamask = ~(u32) 0;
#if defined(CONFIG_MC13783_MXC)
static struct fsl_usb2_platform_data mxc_serial_peripheral_config = {
.name = "OTG",
.platform_init = usbotg_init,
.platform_uninit = usbotg_uninit,
.usbmode = (u32) & UOG_USBMODE,
.does_otg = 1,
.operating_mode = FSL_USB2_DR_DEVICE,
.power_budget = 150, /* 150 mA max power */
.gpio_usb_active = gpio_usbotg_fs_active,
.gpio_usb_inactive = gpio_usbotg_fs_inactive,
.transceiver = "mc13783",
};
#elif defined(CONFIG_ISP1301_MXC)
static struct fsl_usb2_platform_data mxc_serial_peripheral_config = {
.name = "OTG",
.platform_init = usbotg_init,
.platform_uninit = usbotg_uninit,
.usbmode = (u32) & UOG_USBMODE,
.does_otg = 0,
.operating_mode = FSL_USB2_DR_DEVICE,
.power_budget = 150, /* 150 mA max power */
.gpio_usb_active = gpio_usbotg_fs_active,
.gpio_usb_inactive = gpio_usbotg_fs_inactive,
.transceiver = "isp1301",
};
#endif
/* *INDENT-OFF* */
static struct platform_device otg_udc_device = {
.name = "arc_udc",
.id = -1,
.dev = {
.release = udc_release,
.dma_mask = &udc_dmamask,
.coherent_dma_mask = 0xffffffff,
#if defined(CONFIG_MC13783_MXC) || defined(CONFIG_ISP1301_MXC)
.platform_data = &mxc_serial_peripheral_config,
#elif defined(CONFIG_ISP1504_MXC)
.platform_data = &mxc_isp1504_config,
#endif
},
.resource = otg_resources,
.num_resources = ARRAY_SIZE(otg_resources),
};
/* *INDENT-ON* */
#endif
#if defined(CONFIG_USB_OTG)
static void pindetect_release(struct device *dev)
{
}
/* *INDENT-OFF* */
static struct resource pindetect_resources[] = {
{
.start = (u32) (USB_OTGREGS_BASE),
.end = (u32) (USB_OTGREGS_BASE + 0x1ff),
.flags = IORESOURCE_MEM,
},
{
.start = INT_USB3,
.flags = IORESOURCE_IRQ,
},
};
static u64 pindetect_dmamask = ~(u32) 0;
static struct fsl_usb2_platform_data fsl_otg_config = {
.name = "fsl_arc",
.platform_init = usbotg_init,
.platform_uninit = usbotg_uninit,
.usbmode = (u32) &UOG_USBMODE,
.power_budget = 500, /* 500 mA max power */
#if defined(CONFIG_MC13783_MXC)
.operating_mode = FSL_USB2_DR_DEVICE,
.gpio_usb_active = gpio_usbotg_fs_active,
.gpio_usb_inactive = gpio_usbotg_fs_inactive,
.transceiver = "mc13783",
#elif defined(CONFIG_ISP1504_MXC)
.gpio_usb_active = gpio_usbotg_hs_active,
.gpio_usb_inactive = gpio_usbotg_hs_inactive,
.transceiver = "isp1504",
#endif
};
static struct platform_device fsl_device = {
.name = "fsl_arc",
.id = -1,
.dev = {
.release = pindetect_release,
.dma_mask = &pindetect_dmamask,
.coherent_dma_mask = 0xffffffff,
.platform_data = &fsl_otg_config,
},
.resource = pindetect_resources,
.num_resources = ARRAY_SIZE(pindetect_resources),
};
#endif /* CONFIG_USB_OTG */
static int __init mx27_usb_init(void)
{
struct fsl_usb2_platform_data __attribute__((unused)) *pdata;
pr_debug("%s: \n", __FUNCTION__);
#ifdef CONFIG_USB_EHCI_ARC_H1
host_pdev_register(usbh1_resources, ARRAY_SIZE(usbh1_resources),
&usbh1_config);
#endif
#ifdef CONFIG_USB_EHCI_ARC_H2
host_pdev_register(usbh2_resources, ARRAY_SIZE(usbh2_resources),
&usbh2_config);
#endif
#ifdef CONFIG_USB_EHCI_ARC_OTG
#if defined(CONFIG_MC13783_MXC) || defined(CONFIG_ISP1301_MXC)
host_pdev_register(otg_resources, ARRAY_SIZE(otg_resources),
&mxc_serial_host_config);
#elif defined(CONFIG_ISP1504_MXC)
host_pdev_register(otg_resources, ARRAY_SIZE(otg_resources),
&mxc_isp1504_config);
#endif
#endif
#if defined(CONFIG_USB_GADGET_ARC) || defined(CONFIG_OTG_BTC_ARC)
if (platform_device_register(&otg_udc_device)) {
printk(KERN_ERR "usb: can't register OTG Gadget\n");
} else {
pdata = otg_udc_device.dev.platform_data;
printk(KERN_INFO "usb: OTG gadget (%s) registered\n",
pdata->transceiver);
}
#endif
#ifdef CONFIG_USB_OTG
if (platform_device_register(&fsl_device))
printk(KERN_ERR "usb: can't register otg device\n");
else
printk(KERN_INFO "usb: OTG OTG registered\n");
#endif
return 0;
}
module_init(mx27_usb_init);
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