]> git.karo-electronics.de Git - linux-beck.git/commitdiff
usb: host: omap: ehci and ohci simplification
authorKeshava Munegowda <keshava_mgowda@ti.com>
Tue, 1 Mar 2011 14:38:21 +0000 (20:08 +0530)
committerFelipe Balbi <balbi@ti.com>
Tue, 1 Mar 2011 15:02:49 +0000 (17:02 +0200)
The ehci and ohci drivers are simplified; Since
UHH and TLL initialization, clock handling are
done by common usbhs core driver, these functionalities
are removed from ehci and ohci drivers.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
drivers/usb/host/ehci-omap.c
drivers/usb/host/ohci-omap3.c

index 18df6c6a580338e7689f18555f778871fe661d2e..7e41a95c5ceb6a9aa70ed437b737eabebf379a4a 100644 (file)
@@ -4,9 +4,10 @@
  * Bus Glue for the EHCI controllers in OMAP3/4
  * Tested on several OMAP3 boards, and OMAP4 Pandaboard
  *
- * Copyright (C) 2007-2010 Texas Instruments, Inc.
+ * Copyright (C) 2007-2011 Texas Instruments, Inc.
  *     Author: Vikram Pandita <vikram.pandita@ti.com>
  *     Author: Anand Gadiyar <gadiyar@ti.com>
+ *     Author: Keshava Munegowda <keshava_mgowda@ti.com>
  *
  * Copyright (C) 2009 Nokia Corporation
  *     Contact: Felipe Balbi <felipe.balbi@nokia.com>
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  *
- * TODO (last updated Nov 21, 2010):
+ * TODO (last updated Feb 27, 2010):
  *     - add kernel-doc
  *     - enable AUTOIDLE
  *     - add suspend/resume
- *     - move workarounds to board-files
- *     - factor out code common to OHCI
  *     - add HSIC and TLL support
  *     - convert to use hwmod and runtime PM
  */
 
 #include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/gpio.h>
-#include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/usb/ulpi.h>
 #include <plat/usb.h>
 
-/*
- * OMAP USBHOST Register addresses: VIRTUAL ADDRESSES
- *     Use ehci_omap_readl()/ehci_omap_writel() functions
- */
-
-/* TLL Register Set */
-#define        OMAP_USBTLL_REVISION                            (0x00)
-#define        OMAP_USBTLL_SYSCONFIG                           (0x10)
-#define        OMAP_USBTLL_SYSCONFIG_CACTIVITY                 (1 << 8)
-#define        OMAP_USBTLL_SYSCONFIG_SIDLEMODE                 (1 << 3)
-#define        OMAP_USBTLL_SYSCONFIG_ENAWAKEUP                 (1 << 2)
-#define        OMAP_USBTLL_SYSCONFIG_SOFTRESET                 (1 << 1)
-#define        OMAP_USBTLL_SYSCONFIG_AUTOIDLE                  (1 << 0)
-
-#define        OMAP_USBTLL_SYSSTATUS                           (0x14)
-#define        OMAP_USBTLL_SYSSTATUS_RESETDONE                 (1 << 0)
-
-#define        OMAP_USBTLL_IRQSTATUS                           (0x18)
-#define        OMAP_USBTLL_IRQENABLE                           (0x1C)
-
-#define        OMAP_TLL_SHARED_CONF                            (0x30)
-#define        OMAP_TLL_SHARED_CONF_USB_90D_DDR_EN             (1 << 6)
-#define        OMAP_TLL_SHARED_CONF_USB_180D_SDR_EN            (1 << 5)
-#define        OMAP_TLL_SHARED_CONF_USB_DIVRATION              (1 << 2)
-#define        OMAP_TLL_SHARED_CONF_FCLK_REQ                   (1 << 1)
-#define        OMAP_TLL_SHARED_CONF_FCLK_IS_ON                 (1 << 0)
-
-#define        OMAP_TLL_CHANNEL_CONF(num)                      (0x040 + 0x004 * num)
-#define        OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF            (1 << 11)
-#define        OMAP_TLL_CHANNEL_CONF_ULPI_ULPIAUTOIDLE         (1 << 10)
-#define        OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE              (1 << 9)
-#define        OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE               (1 << 8)
-#define        OMAP_TLL_CHANNEL_CONF_CHANEN                    (1 << 0)
-
-#define        OMAP_TLL_ULPI_FUNCTION_CTRL(num)                (0x804 + 0x100 * num)
-#define        OMAP_TLL_ULPI_INTERFACE_CTRL(num)               (0x807 + 0x100 * num)
-#define        OMAP_TLL_ULPI_OTG_CTRL(num)                     (0x80A + 0x100 * num)
-#define        OMAP_TLL_ULPI_INT_EN_RISE(num)                  (0x80D + 0x100 * num)
-#define        OMAP_TLL_ULPI_INT_EN_FALL(num)                  (0x810 + 0x100 * num)
-#define        OMAP_TLL_ULPI_INT_STATUS(num)                   (0x813 + 0x100 * num)
-#define        OMAP_TLL_ULPI_INT_LATCH(num)                    (0x814 + 0x100 * num)
-#define        OMAP_TLL_ULPI_DEBUG(num)                        (0x815 + 0x100 * num)
-#define        OMAP_TLL_ULPI_SCRATCH_REGISTER(num)             (0x816 + 0x100 * num)
-
-#define OMAP_TLL_CHANNEL_COUNT                         3
-#define OMAP_TLL_CHANNEL_1_EN_MASK                     (1 << 0)
-#define OMAP_TLL_CHANNEL_2_EN_MASK                     (1 << 1)
-#define OMAP_TLL_CHANNEL_3_EN_MASK                     (1 << 2)
-
-/* UHH Register Set */
-#define        OMAP_UHH_REVISION                               (0x00)
-#define        OMAP_UHH_SYSCONFIG                              (0x10)
-#define        OMAP_UHH_SYSCONFIG_MIDLEMODE                    (1 << 12)
-#define        OMAP_UHH_SYSCONFIG_CACTIVITY                    (1 << 8)
-#define        OMAP_UHH_SYSCONFIG_SIDLEMODE                    (1 << 3)
-#define        OMAP_UHH_SYSCONFIG_ENAWAKEUP                    (1 << 2)
-#define        OMAP_UHH_SYSCONFIG_SOFTRESET                    (1 << 1)
-#define        OMAP_UHH_SYSCONFIG_AUTOIDLE                     (1 << 0)
-
-#define        OMAP_UHH_SYSSTATUS                              (0x14)
-#define        OMAP_UHH_HOSTCONFIG                             (0x40)
-#define        OMAP_UHH_HOSTCONFIG_ULPI_BYPASS                 (1 << 0)
-#define        OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS              (1 << 0)
-#define        OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS              (1 << 11)
-#define        OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS              (1 << 12)
-#define OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN             (1 << 2)
-#define OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN             (1 << 3)
-#define OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN            (1 << 4)
-#define OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN             (1 << 5)
-#define OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS          (1 << 8)
-#define OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS          (1 << 9)
-#define OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS          (1 << 10)
-
-/* OMAP4-specific defines */
-#define OMAP4_UHH_SYSCONFIG_IDLEMODE_CLEAR             (3 << 2)
-#define OMAP4_UHH_SYSCONFIG_NOIDLE                     (1 << 2)
-
-#define OMAP4_UHH_SYSCONFIG_STDBYMODE_CLEAR            (3 << 4)
-#define OMAP4_UHH_SYSCONFIG_NOSTDBY                    (1 << 4)
-#define OMAP4_UHH_SYSCONFIG_SOFTRESET                  (1 << 0)
-
-#define OMAP4_P1_MODE_CLEAR                            (3 << 16)
-#define OMAP4_P1_MODE_TLL                              (1 << 16)
-#define OMAP4_P1_MODE_HSIC                             (3 << 16)
-#define OMAP4_P2_MODE_CLEAR                            (3 << 18)
-#define OMAP4_P2_MODE_TLL                              (1 << 18)
-#define OMAP4_P2_MODE_HSIC                             (3 << 18)
-
-#define OMAP_REV2_TLL_CHANNEL_COUNT                    2
-
-#define        OMAP_UHH_DEBUG_CSR                              (0x44)
-
 /* EHCI Register Set */
 #define EHCI_INSNREG04                                 (0xA0)
 #define EHCI_INSNREG04_DISABLE_UNSUSPEND               (1 << 5)
 #define        EHCI_INSNREG05_ULPI_EXTREGADD_SHIFT             8
 #define        EHCI_INSNREG05_ULPI_WRDATA_SHIFT                0
 
-/* Values of UHH_REVISION - Note: these are not given in the TRM */
-#define OMAP_EHCI_REV1 0x00000010      /* OMAP3 */
-#define OMAP_EHCI_REV2 0x50700100      /* OMAP4 */
+/*-------------------------------------------------------------------------*/
 
-#define is_omap_ehci_rev1(x)   (x->omap_ehci_rev == OMAP_EHCI_REV1)
-#define is_omap_ehci_rev2(x)   (x->omap_ehci_rev == OMAP_EHCI_REV2)
+static const struct hc_driver ehci_omap_hc_driver;
 
-#define is_ehci_phy_mode(x)    (x == OMAP_EHCI_PORT_MODE_PHY)
-#define is_ehci_tll_mode(x)    (x == OMAP_EHCI_PORT_MODE_TLL)
-#define is_ehci_hsic_mode(x)   (x == OMAP_EHCI_PORT_MODE_HSIC)
 
-/*-------------------------------------------------------------------------*/
-
-static inline void ehci_omap_writel(void __iomem *base, u32 reg, u32 val)
+static inline void ehci_write(void __iomem *base, u32 reg, u32 val)
 {
        __raw_writel(val, base + reg);
 }
 
-static inline u32 ehci_omap_readl(void __iomem *base, u32 reg)
+static inline u32 ehci_read(void __iomem *base, u32 reg)
 {
        return __raw_readl(base + reg);
 }
 
-static inline void ehci_omap_writeb(void __iomem *base, u8 reg, u8 val)
-{
-       __raw_writeb(val, base + reg);
-}
-
-static inline u8 ehci_omap_readb(void __iomem *base, u8 reg)
-{
-       return __raw_readb(base + reg);
-}
-
-/*-------------------------------------------------------------------------*/
-
-struct ehci_hcd_omap {
-       struct ehci_hcd         *ehci;
-       struct device           *dev;
-
-       struct clk              *usbhost_ick;
-       struct clk              *usbhost_hs_fck;
-       struct clk              *usbhost_fs_fck;
-       struct clk              *usbtll_fck;
-       struct clk              *usbtll_ick;
-       struct clk              *xclk60mhsp1_ck;
-       struct clk              *xclk60mhsp2_ck;
-       struct clk              *utmi_p1_fck;
-       struct clk              *usbhost_p1_fck;
-       struct clk              *usbtll_p1_fck;
-       struct clk              *utmi_p2_fck;
-       struct clk              *usbhost_p2_fck;
-       struct clk              *usbtll_p2_fck;
-
-       /* FIXME the following two workarounds are
-        * board specific not silicon-specific so these
-        * should be moved to board-file instead.
-        *
-        * Maybe someone from TI will know better which
-        * board is affected and needs the workarounds
-        * to be applied
-        */
-
-       /* gpio for resetting phy */
-       int                     reset_gpio_port[OMAP3_HS_USB_PORTS];
-
-       /* phy reset workaround */
-       int                     phy_reset;
-
-       /* IP revision */
-       u32                     omap_ehci_rev;
-
-       /* desired phy_mode: TLL, PHY */
-       enum usbhs_omap_port_mode       port_mode[OMAP3_HS_USB_PORTS];
-
-       void __iomem            *uhh_base;
-       void __iomem            *tll_base;
-       void __iomem            *ehci_base;
-
-       /* Regulators for USB PHYs.
-        * Each PHY can have a separate regulator.
-        */
-       struct regulator        *regulator[OMAP3_HS_USB_PORTS];
-};
-
-/*-------------------------------------------------------------------------*/
-
-static void omap_usb_utmi_init(struct ehci_hcd_omap *omap, u8 tll_channel_mask,
-                               u8 tll_channel_count)
-{
-       unsigned reg;
-       int i;
-
-       /* Program the 3 TLL channels upfront */
-       for (i = 0; i < tll_channel_count; i++) {
-               reg = ehci_omap_readl(omap->tll_base, OMAP_TLL_CHANNEL_CONF(i));
-
-               /* Disable AutoIdle, BitStuffing and use SDR Mode */
-               reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE
-                               | OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF
-                               | OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE);
-               ehci_omap_writel(omap->tll_base, OMAP_TLL_CHANNEL_CONF(i), reg);
-       }
-
-       /* Program Common TLL register */
-       reg = ehci_omap_readl(omap->tll_base, OMAP_TLL_SHARED_CONF);
-       reg |= (OMAP_TLL_SHARED_CONF_FCLK_IS_ON
-                       | OMAP_TLL_SHARED_CONF_USB_DIVRATION
-                       | OMAP_TLL_SHARED_CONF_USB_180D_SDR_EN);
-       reg &= ~OMAP_TLL_SHARED_CONF_USB_90D_DDR_EN;
-
-       ehci_omap_writel(omap->tll_base, OMAP_TLL_SHARED_CONF, reg);
-
-       /* Enable channels now */
-       for (i = 0; i < tll_channel_count; i++) {
-               reg = ehci_omap_readl(omap->tll_base, OMAP_TLL_CHANNEL_CONF(i));
-
-               /* Enable only the reg that is needed */
-               if (!(tll_channel_mask & 1<<i))
-                       continue;
-
-               reg |= OMAP_TLL_CHANNEL_CONF_CHANEN;
-               ehci_omap_writel(omap->tll_base, OMAP_TLL_CHANNEL_CONF(i), reg);
-
-               ehci_omap_writeb(omap->tll_base,
-                               OMAP_TLL_ULPI_SCRATCH_REGISTER(i), 0xbe);
-               dev_dbg(omap->dev, "ULPI_SCRATCH_REG[ch=%d]= 0x%02x\n",
-                               i+1, ehci_omap_readb(omap->tll_base,
-                               OMAP_TLL_ULPI_SCRATCH_REGISTER(i)));
-       }
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void omap_ehci_soft_phy_reset(struct ehci_hcd_omap *omap, u8 port)
+static void omap_ehci_soft_phy_reset(struct platform_device *pdev, u8 port)
 {
+       struct usb_hcd  *hcd = dev_get_drvdata(&pdev->dev);
        unsigned long timeout = jiffies + msecs_to_jiffies(1000);
        unsigned reg = 0;
 
@@ -296,600 +83,20 @@ static void omap_ehci_soft_phy_reset(struct ehci_hcd_omap *omap, u8 port)
                /* start ULPI access*/
                | (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT);
 
-       ehci_omap_writel(omap->ehci_base, EHCI_INSNREG05_ULPI, reg);
+       ehci_write(hcd->regs, EHCI_INSNREG05_ULPI, reg);
 
        /* Wait for ULPI access completion */
-       while ((ehci_omap_readl(omap->ehci_base, EHCI_INSNREG05_ULPI)
+       while ((ehci_read(hcd->regs, EHCI_INSNREG05_ULPI)
                        & (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT))) {
                cpu_relax();
 
                if (time_after(jiffies, timeout)) {
-                       dev_dbg(omap->dev, "phy reset operation timed out\n");
+                       dev_dbg(&pdev->dev, "phy reset operation timed out\n");
                        break;
                }
        }
 }
 
-/* omap_start_ehc
- *     - Start the TI USBHOST controller
- */
-static int omap_start_ehc(struct ehci_hcd_omap *omap, struct usb_hcd *hcd)
-{
-       unsigned long timeout = jiffies + msecs_to_jiffies(1000);
-       u8 tll_ch_mask = 0;
-       unsigned reg = 0;
-       int ret = 0;
-
-       dev_dbg(omap->dev, "starting TI EHCI USB Controller\n");
-
-       /* Enable Clocks for USBHOST */
-       omap->usbhost_ick = clk_get(omap->dev, "usbhost_ick");
-       if (IS_ERR(omap->usbhost_ick)) {
-               ret =  PTR_ERR(omap->usbhost_ick);
-               goto err_host_ick;
-       }
-       clk_enable(omap->usbhost_ick);
-
-       omap->usbhost_hs_fck = clk_get(omap->dev, "hs_fck");
-       if (IS_ERR(omap->usbhost_hs_fck)) {
-               ret = PTR_ERR(omap->usbhost_hs_fck);
-               goto err_host_120m_fck;
-       }
-       clk_enable(omap->usbhost_hs_fck);
-
-       omap->usbhost_fs_fck = clk_get(omap->dev, "fs_fck");
-       if (IS_ERR(omap->usbhost_fs_fck)) {
-               ret = PTR_ERR(omap->usbhost_fs_fck);
-               goto err_host_48m_fck;
-       }
-       clk_enable(omap->usbhost_fs_fck);
-
-       if (omap->phy_reset) {
-               /* Refer: ISSUE1 */
-               if (gpio_is_valid(omap->reset_gpio_port[0])) {
-                       gpio_request(omap->reset_gpio_port[0],
-                                               "USB1 PHY reset");
-                       gpio_direction_output(omap->reset_gpio_port[0], 0);
-               }
-
-               if (gpio_is_valid(omap->reset_gpio_port[1])) {
-                       gpio_request(omap->reset_gpio_port[1],
-                                               "USB2 PHY reset");
-                       gpio_direction_output(omap->reset_gpio_port[1], 0);
-               }
-
-               /* Hold the PHY in RESET for enough time till DIR is high */
-               udelay(10);
-       }
-
-       /* Configure TLL for 60Mhz clk for ULPI */
-       omap->usbtll_fck = clk_get(omap->dev, "usbtll_fck");
-       if (IS_ERR(omap->usbtll_fck)) {
-               ret = PTR_ERR(omap->usbtll_fck);
-               goto err_tll_fck;
-       }
-       clk_enable(omap->usbtll_fck);
-
-       omap->usbtll_ick = clk_get(omap->dev, "usbtll_ick");
-       if (IS_ERR(omap->usbtll_ick)) {
-               ret = PTR_ERR(omap->usbtll_ick);
-               goto err_tll_ick;
-       }
-       clk_enable(omap->usbtll_ick);
-
-       omap->omap_ehci_rev = ehci_omap_readl(omap->uhh_base,
-                                               OMAP_UHH_REVISION);
-       dev_dbg(omap->dev, "OMAP UHH_REVISION 0x%x\n",
-                                       omap->omap_ehci_rev);
-
-       /*
-        * Enable per-port clocks as needed (newer controllers only).
-        * - External ULPI clock for PHY mode
-        * - Internal clocks for TLL and HSIC modes (TODO)
-        */
-       if (is_omap_ehci_rev2(omap)) {
-               switch (omap->port_mode[0]) {
-               case OMAP_EHCI_PORT_MODE_PHY:
-                       omap->xclk60mhsp1_ck = clk_get(omap->dev,
-                                                       "xclk60mhsp1_ck");
-                       if (IS_ERR(omap->xclk60mhsp1_ck)) {
-                               ret = PTR_ERR(omap->xclk60mhsp1_ck);
-                               dev_err(omap->dev,
-                                       "Unable to get Port1 ULPI clock\n");
-                       }
-
-                       omap->utmi_p1_fck = clk_get(omap->dev,
-                                                       "utmi_p1_gfclk");
-                       if (IS_ERR(omap->utmi_p1_fck)) {
-                               ret = PTR_ERR(omap->utmi_p1_fck);
-                               dev_err(omap->dev,
-                                       "Unable to get utmi_p1_fck\n");
-                       }
-
-                       ret = clk_set_parent(omap->utmi_p1_fck,
-                                               omap->xclk60mhsp1_ck);
-                       if (ret != 0) {
-                               dev_err(omap->dev,
-                                       "Unable to set P1 f-clock\n");
-                       }
-                       break;
-               case OMAP_EHCI_PORT_MODE_TLL:
-                       omap->xclk60mhsp1_ck = clk_get(omap->dev,
-                                                       "init_60m_fclk");
-                       if (IS_ERR(omap->xclk60mhsp1_ck)) {
-                               ret = PTR_ERR(omap->xclk60mhsp1_ck);
-                               dev_err(omap->dev,
-                                       "Unable to get Port1 ULPI clock\n");
-                       }
-
-                       omap->utmi_p1_fck = clk_get(omap->dev,
-                                                       "utmi_p1_gfclk");
-                       if (IS_ERR(omap->utmi_p1_fck)) {
-                               ret = PTR_ERR(omap->utmi_p1_fck);
-                               dev_err(omap->dev,
-                                       "Unable to get utmi_p1_fck\n");
-                       }
-
-                       ret = clk_set_parent(omap->utmi_p1_fck,
-                                               omap->xclk60mhsp1_ck);
-                       if (ret != 0) {
-                               dev_err(omap->dev,
-                                       "Unable to set P1 f-clock\n");
-                       }
-
-                       omap->usbhost_p1_fck = clk_get(omap->dev,
-                                               "usb_host_hs_utmi_p1_clk");
-                       if (IS_ERR(omap->usbhost_p1_fck)) {
-                               ret = PTR_ERR(omap->usbhost_p1_fck);
-                               dev_err(omap->dev,
-                                       "Unable to get HOST PORT 1 clk\n");
-                       } else {
-                               clk_enable(omap->usbhost_p1_fck);
-                       }
-
-                       omap->usbtll_p1_fck = clk_get(omap->dev,
-                                               "usb_tll_hs_usb_ch0_clk");
-
-                       if (IS_ERR(omap->usbtll_p1_fck)) {
-                               ret = PTR_ERR(omap->usbtll_p1_fck);
-                               dev_err(omap->dev,
-                                       "Unable to get TLL CH0 clk\n");
-                       } else {
-                               clk_enable(omap->usbtll_p1_fck);
-                       }
-                       break;
-                       /* TODO */
-               default:
-                       break;
-               }
-               switch (omap->port_mode[1]) {
-               case OMAP_EHCI_PORT_MODE_PHY:
-                       omap->xclk60mhsp2_ck = clk_get(omap->dev,
-                                                       "xclk60mhsp2_ck");
-                       if (IS_ERR(omap->xclk60mhsp2_ck)) {
-                               ret = PTR_ERR(omap->xclk60mhsp2_ck);
-                               dev_err(omap->dev,
-                                       "Unable to get Port2 ULPI clock\n");
-                       }
-
-                       omap->utmi_p2_fck = clk_get(omap->dev,
-                                                       "utmi_p2_gfclk");
-                       if (IS_ERR(omap->utmi_p2_fck)) {
-                               ret = PTR_ERR(omap->utmi_p2_fck);
-                               dev_err(omap->dev,
-                                       "Unable to get utmi_p2_fck\n");
-                       }
-
-                       ret = clk_set_parent(omap->utmi_p2_fck,
-                                               omap->xclk60mhsp2_ck);
-                       if (ret != 0) {
-                               dev_err(omap->dev,
-                                       "Unable to set P2 f-clock\n");
-                       }
-                       break;
-               case OMAP_EHCI_PORT_MODE_TLL:
-                       omap->xclk60mhsp2_ck = clk_get(omap->dev,
-                                                       "init_60m_fclk");
-                       if (IS_ERR(omap->xclk60mhsp2_ck)) {
-                               ret = PTR_ERR(omap->xclk60mhsp2_ck);
-                               dev_err(omap->dev,
-                                       "Unable to get Port2 ULPI clock\n");
-                       }
-
-                       omap->utmi_p2_fck = clk_get(omap->dev,
-                                                       "utmi_p2_gfclk");
-                       if (IS_ERR(omap->utmi_p2_fck)) {
-                               ret = PTR_ERR(omap->utmi_p2_fck);
-                               dev_err(omap->dev,
-                                       "Unable to get utmi_p2_fck\n");
-                       }
-
-                       ret = clk_set_parent(omap->utmi_p2_fck,
-                                               omap->xclk60mhsp2_ck);
-                       if (ret != 0) {
-                               dev_err(omap->dev,
-                                       "Unable to set P2 f-clock\n");
-                       }
-
-                       omap->usbhost_p2_fck = clk_get(omap->dev,
-                                               "usb_host_hs_utmi_p2_clk");
-                       if (IS_ERR(omap->usbhost_p2_fck)) {
-                               ret = PTR_ERR(omap->usbhost_p2_fck);
-                               dev_err(omap->dev,
-                                       "Unable to get HOST PORT 2 clk\n");
-                       } else {
-                               clk_enable(omap->usbhost_p2_fck);
-                       }
-
-                       omap->usbtll_p2_fck = clk_get(omap->dev,
-                                               "usb_tll_hs_usb_ch1_clk");
-
-                       if (IS_ERR(omap->usbtll_p2_fck)) {
-                               ret = PTR_ERR(omap->usbtll_p2_fck);
-                               dev_err(omap->dev,
-                                       "Unable to get TLL CH1 clk\n");
-                       } else {
-                               clk_enable(omap->usbtll_p2_fck);
-                       }
-                       break;
-                       /* TODO */
-               default:
-                       break;
-               }
-       }
-
-
-       /* perform TLL soft reset, and wait until reset is complete */
-       ehci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
-                       OMAP_USBTLL_SYSCONFIG_SOFTRESET);
-
-       /* Wait for TLL reset to complete */
-       while (!(ehci_omap_readl(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
-                       & OMAP_USBTLL_SYSSTATUS_RESETDONE)) {
-               cpu_relax();
-
-               if (time_after(jiffies, timeout)) {
-                       dev_dbg(omap->dev, "operation timed out\n");
-                       ret = -EINVAL;
-                       goto err_sys_status;
-               }
-       }
-
-       dev_dbg(omap->dev, "TLL RESET DONE\n");
-
-       /* (1<<3) = no idle mode only for initial debugging */
-       ehci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
-                       OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
-                       OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
-                       OMAP_USBTLL_SYSCONFIG_CACTIVITY);
-
-
-       /* Put UHH in NoIdle/NoStandby mode */
-       reg = ehci_omap_readl(omap->uhh_base, OMAP_UHH_SYSCONFIG);
-       if (is_omap_ehci_rev1(omap)) {
-               reg |= (OMAP_UHH_SYSCONFIG_ENAWAKEUP
-                               | OMAP_UHH_SYSCONFIG_SIDLEMODE
-                               | OMAP_UHH_SYSCONFIG_CACTIVITY
-                               | OMAP_UHH_SYSCONFIG_MIDLEMODE);
-               reg &= ~OMAP_UHH_SYSCONFIG_AUTOIDLE;
-
-
-       } else if (is_omap_ehci_rev2(omap)) {
-               reg &= ~OMAP4_UHH_SYSCONFIG_IDLEMODE_CLEAR;
-               reg |= OMAP4_UHH_SYSCONFIG_NOIDLE;
-               reg &= ~OMAP4_UHH_SYSCONFIG_STDBYMODE_CLEAR;
-               reg |= OMAP4_UHH_SYSCONFIG_NOSTDBY;
-       }
-       ehci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG, reg);
-
-       reg = ehci_omap_readl(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
-
-       /* setup ULPI bypass and burst configurations */
-       reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
-                       | OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
-                       | OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN);
-       reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
-
-       if (is_omap_ehci_rev1(omap)) {
-               if (omap->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
-                       reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
-               if (omap->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
-                       reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
-               if (omap->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
-                       reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
-
-               /* Bypass the TLL module for PHY mode operation */
-               if (cpu_is_omap3430() && (omap_rev() <= OMAP3430_REV_ES2_1)) {
-                       dev_dbg(omap->dev, "OMAP3 ES version <= ES2.1\n");
-                       if (is_ehci_phy_mode(omap->port_mode[0]) ||
-                               is_ehci_phy_mode(omap->port_mode[1]) ||
-                                       is_ehci_phy_mode(omap->port_mode[2]))
-                               reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
-                       else
-                               reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
-               } else {
-                       dev_dbg(omap->dev, "OMAP3 ES version > ES2.1\n");
-                       if (is_ehci_phy_mode(omap->port_mode[0]))
-                               reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
-                       else if (is_ehci_tll_mode(omap->port_mode[0]))
-                               reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
-
-                       if (is_ehci_phy_mode(omap->port_mode[1]))
-                               reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
-                       else if (is_ehci_tll_mode(omap->port_mode[1]))
-                               reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
-
-                       if (is_ehci_phy_mode(omap->port_mode[2]))
-                               reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
-                       else if (is_ehci_tll_mode(omap->port_mode[2]))
-                               reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
-               }
-       } else if (is_omap_ehci_rev2(omap)) {
-               /* Clear port mode fields for PHY mode*/
-               reg &= ~OMAP4_P1_MODE_CLEAR;
-               reg &= ~OMAP4_P2_MODE_CLEAR;
-
-               if (is_ehci_tll_mode(omap->port_mode[0]))
-                       reg |= OMAP4_P1_MODE_TLL;
-               else if (is_ehci_hsic_mode(omap->port_mode[0]))
-                       reg |= OMAP4_P1_MODE_HSIC;
-
-               if (is_ehci_tll_mode(omap->port_mode[1]))
-                       reg |= OMAP4_P2_MODE_TLL;
-               else if (is_ehci_hsic_mode(omap->port_mode[1]))
-                       reg |= OMAP4_P2_MODE_HSIC;
-       }
-
-       ehci_omap_writel(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
-       dev_dbg(omap->dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
-
-
-       /*
-        * An undocumented "feature" in the OMAP3 EHCI controller,
-        * causes suspended ports to be taken out of suspend when
-        * the USBCMD.Run/Stop bit is cleared (for example when
-        * we do ehci_bus_suspend).
-        * This breaks suspend-resume if the root-hub is allowed
-        * to suspend. Writing 1 to this undocumented register bit
-        * disables this feature and restores normal behavior.
-        */
-       ehci_omap_writel(omap->ehci_base, EHCI_INSNREG04,
-                               EHCI_INSNREG04_DISABLE_UNSUSPEND);
-
-       if ((omap->port_mode[0] == OMAP_EHCI_PORT_MODE_TLL) ||
-               (omap->port_mode[1] == OMAP_EHCI_PORT_MODE_TLL) ||
-                       (omap->port_mode[2] == OMAP_EHCI_PORT_MODE_TLL)) {
-
-               if (omap->port_mode[0] == OMAP_EHCI_PORT_MODE_TLL)
-                       tll_ch_mask |= OMAP_TLL_CHANNEL_1_EN_MASK;
-               if (omap->port_mode[1] == OMAP_EHCI_PORT_MODE_TLL)
-                       tll_ch_mask |= OMAP_TLL_CHANNEL_2_EN_MASK;
-               if (omap->port_mode[2] == OMAP_EHCI_PORT_MODE_TLL)
-                       tll_ch_mask |= OMAP_TLL_CHANNEL_3_EN_MASK;
-
-               /* Enable UTMI mode for required TLL channels */
-               omap_usb_utmi_init(omap, tll_ch_mask, OMAP_TLL_CHANNEL_COUNT);
-       }
-
-       if (omap->phy_reset) {
-               /* Refer ISSUE1:
-                * Hold the PHY in RESET for enough time till
-                * PHY is settled and ready
-                */
-               udelay(10);
-
-               if (gpio_is_valid(omap->reset_gpio_port[0]))
-                       gpio_set_value(omap->reset_gpio_port[0], 1);
-
-               if (gpio_is_valid(omap->reset_gpio_port[1]))
-                       gpio_set_value(omap->reset_gpio_port[1], 1);
-       }
-
-       /* Soft reset the PHY using PHY reset command over ULPI */
-       if (omap->port_mode[0] == OMAP_EHCI_PORT_MODE_PHY)
-               omap_ehci_soft_phy_reset(omap, 0);
-       if (omap->port_mode[1] == OMAP_EHCI_PORT_MODE_PHY)
-               omap_ehci_soft_phy_reset(omap, 1);
-
-       return 0;
-
-err_sys_status:
-
-       if (omap->usbtll_p2_fck != NULL) {
-               clk_disable(omap->usbtll_p2_fck);
-               clk_put(omap->usbtll_p2_fck);
-       }
-       if (omap->usbhost_p2_fck != NULL) {
-               clk_disable(omap->usbhost_p2_fck);
-               clk_put(omap->usbhost_p2_fck);
-       }
-       if (omap->usbtll_p1_fck != NULL) {
-               clk_disable(omap->usbtll_p1_fck);
-               clk_put(omap->usbtll_p1_fck);
-       }
-       if (omap->usbhost_p1_fck != NULL) {
-               clk_disable(omap->usbhost_p1_fck);
-               clk_put(omap->usbhost_p1_fck);
-       }
-
-       clk_disable(omap->utmi_p2_fck);
-       clk_put(omap->utmi_p2_fck);
-       clk_disable(omap->xclk60mhsp2_ck);
-       clk_put(omap->xclk60mhsp2_ck);
-       clk_disable(omap->utmi_p1_fck);
-       clk_put(omap->utmi_p1_fck);
-       clk_disable(omap->xclk60mhsp1_ck);
-       clk_put(omap->xclk60mhsp1_ck);
-       clk_disable(omap->usbtll_ick);
-       clk_put(omap->usbtll_ick);
-
-err_tll_ick:
-       clk_disable(omap->usbtll_fck);
-       clk_put(omap->usbtll_fck);
-
-err_tll_fck:
-       clk_disable(omap->usbhost_fs_fck);
-       clk_put(omap->usbhost_fs_fck);
-
-       if (omap->phy_reset) {
-               if (gpio_is_valid(omap->reset_gpio_port[0]))
-                       gpio_free(omap->reset_gpio_port[0]);
-
-               if (gpio_is_valid(omap->reset_gpio_port[1]))
-                       gpio_free(omap->reset_gpio_port[1]);
-       }
-
-err_host_48m_fck:
-       clk_disable(omap->usbhost_hs_fck);
-       clk_put(omap->usbhost_hs_fck);
-
-err_host_120m_fck:
-       clk_disable(omap->usbhost_ick);
-       clk_put(omap->usbhost_ick);
-
-err_host_ick:
-       return ret;
-}
-
-static void omap_stop_ehc(struct ehci_hcd_omap *omap, struct usb_hcd *hcd)
-{
-       unsigned long timeout = jiffies + msecs_to_jiffies(100);
-
-       dev_dbg(omap->dev, "stopping TI EHCI USB Controller\n");
-
-       /* Reset OMAP modules for insmod/rmmod to work */
-       ehci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG,
-                       is_omap_ehci_rev2(omap) ?
-                       OMAP4_UHH_SYSCONFIG_SOFTRESET :
-                       OMAP_UHH_SYSCONFIG_SOFTRESET);
-       while (!(ehci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
-                               & (1 << 0))) {
-               cpu_relax();
-
-               if (time_after(jiffies, timeout))
-                       dev_dbg(omap->dev, "operation timed out\n");
-       }
-
-       while (!(ehci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
-                               & (1 << 1))) {
-               cpu_relax();
-
-               if (time_after(jiffies, timeout))
-                       dev_dbg(omap->dev, "operation timed out\n");
-       }
-
-       while (!(ehci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
-                               & (1 << 2))) {
-               cpu_relax();
-
-               if (time_after(jiffies, timeout))
-                       dev_dbg(omap->dev, "operation timed out\n");
-       }
-
-       ehci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG, (1 << 1));
-
-       while (!(ehci_omap_readl(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
-                               & (1 << 0))) {
-               cpu_relax();
-
-               if (time_after(jiffies, timeout))
-                       dev_dbg(omap->dev, "operation timed out\n");
-       }
-
-       if (omap->usbtll_fck != NULL) {
-               clk_disable(omap->usbtll_fck);
-               clk_put(omap->usbtll_fck);
-               omap->usbtll_fck = NULL;
-       }
-
-       if (omap->usbhost_ick != NULL) {
-               clk_disable(omap->usbhost_ick);
-               clk_put(omap->usbhost_ick);
-               omap->usbhost_ick = NULL;
-       }
-
-       if (omap->usbhost_fs_fck != NULL) {
-               clk_disable(omap->usbhost_fs_fck);
-               clk_put(omap->usbhost_fs_fck);
-               omap->usbhost_fs_fck = NULL;
-       }
-
-       if (omap->usbhost_hs_fck != NULL) {
-               clk_disable(omap->usbhost_hs_fck);
-               clk_put(omap->usbhost_hs_fck);
-               omap->usbhost_hs_fck = NULL;
-       }
-
-       if (omap->usbtll_ick != NULL) {
-               clk_disable(omap->usbtll_ick);
-               clk_put(omap->usbtll_ick);
-               omap->usbtll_ick = NULL;
-       }
-
-       if (is_omap_ehci_rev2(omap)) {
-               if (omap->xclk60mhsp1_ck != NULL) {
-                       clk_disable(omap->xclk60mhsp1_ck);
-                       clk_put(omap->xclk60mhsp1_ck);
-                       omap->xclk60mhsp1_ck = NULL;
-               }
-
-               if (omap->utmi_p1_fck != NULL) {
-                       clk_disable(omap->utmi_p1_fck);
-                       clk_put(omap->utmi_p1_fck);
-                       omap->utmi_p1_fck = NULL;
-               }
-
-               if (omap->xclk60mhsp2_ck != NULL) {
-                       clk_disable(omap->xclk60mhsp2_ck);
-                       clk_put(omap->xclk60mhsp2_ck);
-                       omap->xclk60mhsp2_ck = NULL;
-               }
-
-               if (omap->utmi_p2_fck != NULL) {
-                       clk_disable(omap->utmi_p2_fck);
-                       clk_put(omap->utmi_p2_fck);
-                       omap->utmi_p2_fck = NULL;
-               }
-
-               if (omap->usbtll_p2_fck != NULL) {
-                       clk_disable(omap->usbtll_p2_fck);
-                       clk_put(omap->usbtll_p2_fck);
-                       omap->usbtll_p2_fck = NULL;
-               }
-
-               if (omap->usbhost_p2_fck != NULL) {
-                       clk_disable(omap->usbhost_p2_fck);
-                       clk_put(omap->usbhost_p2_fck);
-                       omap->usbhost_p2_fck = NULL;
-               }
-
-               if (omap->usbtll_p1_fck != NULL) {
-                       clk_disable(omap->usbtll_p1_fck);
-                       clk_put(omap->usbtll_p1_fck);
-                       omap->usbtll_p1_fck = NULL;
-               }
-
-               if (omap->usbhost_p1_fck != NULL) {
-                       clk_disable(omap->usbhost_p1_fck);
-                       clk_put(omap->usbhost_p1_fck);
-                       omap->usbhost_p1_fck = NULL;
-               }
-       }
-
-       if (omap->phy_reset) {
-               if (gpio_is_valid(omap->reset_gpio_port[0]))
-                       gpio_free(omap->reset_gpio_port[0]);
-
-               if (gpio_is_valid(omap->reset_gpio_port[1]))
-                       gpio_free(omap->reset_gpio_port[1]);
-       }
-
-       dev_dbg(omap->dev, "Clock to USB host has been disabled\n");
-}
-
-/*-------------------------------------------------------------------------*/
-
-static const struct hc_driver ehci_omap_hc_driver;
 
 /* configure so an HC device and id are always provided */
 /* always called with process context; sleeping is OK */
@@ -903,155 +110,113 @@ static const struct hc_driver ehci_omap_hc_driver;
  */
 static int ehci_hcd_omap_probe(struct platform_device *pdev)
 {
-       struct usbhs_omap_board_data *pdata = pdev->dev.platform_data;
-       struct ehci_hcd_omap *omap;
-       struct resource *res;
-       struct usb_hcd *hcd;
+       struct device                           *dev = &pdev->dev;
+       struct ehci_hcd_omap_platform_data      *pdata = dev->platform_data;
+       struct resource                         *res;
+       struct usb_hcd                          *hcd;
+       void __iomem                            *regs;
+       struct ehci_hcd                         *omap_ehci;
+       int                                     ret = -ENODEV;
+       int                                     irq;
 
-       int irq = platform_get_irq(pdev, 0);
-       int ret = -ENODEV;
-       int i;
-       char supply[7];
+       if (usb_disabled())
+               return -ENODEV;
 
-       if (!pdata) {
-               dev_dbg(&pdev->dev, "missing platform_data\n");
-               goto err_pdata;
+       if (!dev->parent) {
+               dev_err(dev, "Missing parent device\n");
+               return -ENODEV;
        }
 
-       if (usb_disabled())
-               goto err_disabled;
+       irq = platform_get_irq_byname(pdev, "ehci-irq");
+       if (irq < 0) {
+               dev_err(dev, "EHCI irq failed\n");
+               return -ENODEV;
+       }
 
-       omap = kzalloc(sizeof(*omap), GFP_KERNEL);
-       if (!omap) {
-               ret = -ENOMEM;
-               goto err_disabled;
+       res =  platform_get_resource_byname(pdev,
+                               IORESOURCE_MEM, "ehci");
+       if (!res) {
+               dev_err(dev, "UHH EHCI get resource failed\n");
+               return -ENODEV;
+       }
+
+       regs = ioremap(res->start, resource_size(res));
+       if (!regs) {
+               dev_err(dev, "UHH EHCI ioremap failed\n");
+               return -ENOMEM;
        }
 
-       hcd = usb_create_hcd(&ehci_omap_hc_driver, &pdev->dev,
-                       dev_name(&pdev->dev));
+       hcd = usb_create_hcd(&ehci_omap_hc_driver, dev,
+                       dev_name(dev));
        if (!hcd) {
-               dev_err(&pdev->dev, "failed to create hcd with err %d\n", ret);
+               dev_err(dev, "failed to create hcd with err %d\n", ret);
                ret = -ENOMEM;
-               goto err_create_hcd;
+               goto err_io;
        }
 
-       platform_set_drvdata(pdev, omap);
-       omap->dev               = &pdev->dev;
-       omap->phy_reset         = pdata->phy_reset;
-       omap->reset_gpio_port[0]        = pdata->reset_gpio_port[0];
-       omap->reset_gpio_port[1]        = pdata->reset_gpio_port[1];
-       omap->reset_gpio_port[2]        = pdata->reset_gpio_port[2];
-       omap->port_mode[0]              = pdata->port_mode[0];
-       omap->port_mode[1]              = pdata->port_mode[1];
-       omap->port_mode[2]              = pdata->port_mode[2];
-       omap->ehci              = hcd_to_ehci(hcd);
-       omap->ehci->sbrn        = 0x20;
-
-       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ehci");
-
        hcd->rsrc_start = res->start;
        hcd->rsrc_len = resource_size(res);
+       hcd->regs = regs;
 
-       hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
-       if (!hcd->regs) {
-               dev_err(&pdev->dev, "EHCI ioremap failed\n");
-               ret = -ENOMEM;
-               goto err_ioremap;
-       }
-
-       /* we know this is the memory we want, no need to ioremap again */
-       omap->ehci->caps = hcd->regs;
-       omap->ehci_base = hcd->regs;
-
-       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
-       omap->uhh_base = ioremap(res->start, resource_size(res));
-       if (!omap->uhh_base) {
-               dev_err(&pdev->dev, "UHH ioremap failed\n");
-               ret = -ENOMEM;
-               goto err_uhh_ioremap;
+       ret = omap_usbhs_enable(dev);
+       if (ret) {
+               dev_err(dev, "failed to start usbhs with err %d\n", ret);
+               goto err_enable;
        }
 
-       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tll");
-       omap->tll_base = ioremap(res->start, resource_size(res));
-       if (!omap->tll_base) {
-               dev_err(&pdev->dev, "TLL ioremap failed\n");
-               ret = -ENOMEM;
-               goto err_tll_ioremap;
-       }
+       /*
+        * An undocumented "feature" in the OMAP3 EHCI controller,
+        * causes suspended ports to be taken out of suspend when
+        * the USBCMD.Run/Stop bit is cleared (for example when
+        * we do ehci_bus_suspend).
+        * This breaks suspend-resume if the root-hub is allowed
+        * to suspend. Writing 1 to this undocumented register bit
+        * disables this feature and restores normal behavior.
+        */
+       ehci_write(regs, EHCI_INSNREG04,
+                               EHCI_INSNREG04_DISABLE_UNSUSPEND);
 
-       /* get ehci regulator and enable */
-       for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
-               if (omap->port_mode[i] != OMAP_EHCI_PORT_MODE_PHY) {
-                       omap->regulator[i] = NULL;
-                       continue;
-               }
-               snprintf(supply, sizeof(supply), "hsusb%d", i);
-               omap->regulator[i] = regulator_get(omap->dev, supply);
-               if (IS_ERR(omap->regulator[i])) {
-                       omap->regulator[i] = NULL;
-                       dev_dbg(&pdev->dev,
-                       "failed to get ehci port%d regulator\n", i);
-               } else {
-                       regulator_enable(omap->regulator[i]);
-               }
-       }
+       /* Soft reset the PHY using PHY reset command over ULPI */
+       if (pdata->port_mode[0] == OMAP_EHCI_PORT_MODE_PHY)
+               omap_ehci_soft_phy_reset(pdev, 0);
+       if (pdata->port_mode[1] == OMAP_EHCI_PORT_MODE_PHY)
+               omap_ehci_soft_phy_reset(pdev, 1);
 
-       ret = omap_start_ehc(omap, hcd);
-       if (ret) {
-               dev_err(&pdev->dev, "failed to start ehci with err %d\n", ret);
-               goto err_start;
-       }
+       omap_ehci = hcd_to_ehci(hcd);
+       omap_ehci->sbrn = 0x20;
 
-       omap->ehci->regs = hcd->regs
-               + HC_LENGTH(readl(&omap->ehci->caps->hc_capbase));
+       /* we know this is the memory we want, no need to ioremap again */
+       omap_ehci->caps = hcd->regs;
+       omap_ehci->regs = hcd->regs
+                       + HC_LENGTH(readl(&omap_ehci->caps->hc_capbase));
 
-       dbg_hcs_params(omap->ehci, "reset");
-       dbg_hcc_params(omap->ehci, "reset");
+       dbg_hcs_params(omap_ehci, "reset");
+       dbg_hcc_params(omap_ehci, "reset");
 
        /* cache this readonly data; minimize chip reads */
-       omap->ehci->hcs_params = readl(&omap->ehci->caps->hcs_params);
+       omap_ehci->hcs_params = readl(&omap_ehci->caps->hcs_params);
 
        ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
        if (ret) {
-               dev_err(&pdev->dev, "failed to add hcd with err %d\n", ret);
+               dev_err(dev, "failed to add hcd with err %d\n", ret);
                goto err_add_hcd;
        }
 
        /* root ports should always stay powered */
-       ehci_port_power(omap->ehci, 1);
+       ehci_port_power(omap_ehci, 1);
 
        return 0;
 
 err_add_hcd:
-       omap_stop_ehc(omap, hcd);
+       omap_usbhs_disable(dev);
 
-err_start:
-       for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
-               if (omap->regulator[i]) {
-                       regulator_disable(omap->regulator[i]);
-                       regulator_put(omap->regulator[i]);
-               }
-       }
-       iounmap(omap->tll_base);
-
-err_tll_ioremap:
-       iounmap(omap->uhh_base);
-
-err_uhh_ioremap:
-       iounmap(hcd->regs);
-
-err_ioremap:
+err_enable:
        usb_put_hcd(hcd);
 
-err_create_hcd:
-       kfree(omap);
-err_disabled:
-err_pdata:
+err_io:
        return ret;
 }
 
-/* may be called without controller electrically present */
-/* may be called with controller, bus, and devices active */
 
 /**
  * ehci_hcd_omap_remove - shutdown processing for EHCI HCDs
@@ -1063,31 +228,18 @@ err_pdata:
  */
 static int ehci_hcd_omap_remove(struct platform_device *pdev)
 {
-       struct ehci_hcd_omap *omap = platform_get_drvdata(pdev);
-       struct usb_hcd *hcd = ehci_to_hcd(omap->ehci);
-       int i;
+       struct device *dev      = &pdev->dev;
+       struct usb_hcd *hcd     = dev_get_drvdata(dev);
 
        usb_remove_hcd(hcd);
-       omap_stop_ehc(omap, hcd);
-       iounmap(hcd->regs);
-       for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
-               if (omap->regulator[i]) {
-                       regulator_disable(omap->regulator[i]);
-                       regulator_put(omap->regulator[i]);
-               }
-       }
-       iounmap(omap->tll_base);
-       iounmap(omap->uhh_base);
+       omap_usbhs_disable(dev);
        usb_put_hcd(hcd);
-       kfree(omap);
-
        return 0;
 }
 
 static void ehci_hcd_omap_shutdown(struct platform_device *pdev)
 {
-       struct ehci_hcd_omap *omap = platform_get_drvdata(pdev);
-       struct usb_hcd *hcd = ehci_to_hcd(omap->ehci);
+       struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev);
 
        if (hcd->driver->shutdown)
                hcd->driver->shutdown(hcd);
index 3f9db87fe5251b382048cd9dda046453208bdc63..6048f2f64f73128356989bf51097984ba2247412 100644 (file)
@@ -7,6 +7,7 @@
  * Copyright (C) 2007-2010 Texas Instruments, Inc.
  * Author: Vikram Pandita <vikram.pandita@ti.com>
  * Author: Anand Gadiyar <gadiyar@ti.com>
+ * Author: Keshava Munegowda <keshava_mgowda@ti.com>
  *
  * Based on ehci-omap.c and some other ohci glue layers
  *
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  *
- * TODO (last updated Mar 10th, 2010):
+ * TODO (last updated Feb 27, 2011):
  *     - add kernel-doc
- *     - Factor out code common to EHCI to a separate file
- *     - Make EHCI and OHCI coexist together
- *       - needs newer silicon versions to actually work
- *       - the last one to be loaded currently steps on the other's toes
- *     - Add hooks for configuring transceivers, etc. at init/exit
- *     - Add aggressive clock-management code
  */
 
 #include <linux/platform_device.h>
-#include <linux/clk.h>
-
 #include <plat/usb.h>
 
-/*
- * OMAP USBHOST Register addresses: VIRTUAL ADDRESSES
- *     Use ohci_omap_readl()/ohci_omap_writel() functions
- */
-
-/* TLL Register Set */
-#define        OMAP_USBTLL_REVISION                            (0x00)
-#define        OMAP_USBTLL_SYSCONFIG                           (0x10)
-#define        OMAP_USBTLL_SYSCONFIG_CACTIVITY                 (1 << 8)
-#define        OMAP_USBTLL_SYSCONFIG_SIDLEMODE                 (1 << 3)
-#define        OMAP_USBTLL_SYSCONFIG_ENAWAKEUP                 (1 << 2)
-#define        OMAP_USBTLL_SYSCONFIG_SOFTRESET                 (1 << 1)
-#define        OMAP_USBTLL_SYSCONFIG_AUTOIDLE                  (1 << 0)
-
-#define        OMAP_USBTLL_SYSSTATUS                           (0x14)
-#define        OMAP_USBTLL_SYSSTATUS_RESETDONE                 (1 << 0)
-
-#define        OMAP_USBTLL_IRQSTATUS                           (0x18)
-#define        OMAP_USBTLL_IRQENABLE                           (0x1C)
-
-#define        OMAP_TLL_SHARED_CONF                            (0x30)
-#define        OMAP_TLL_SHARED_CONF_USB_90D_DDR_EN             (1 << 6)
-#define        OMAP_TLL_SHARED_CONF_USB_180D_SDR_EN            (1 << 5)
-#define        OMAP_TLL_SHARED_CONF_USB_DIVRATION              (1 << 2)
-#define        OMAP_TLL_SHARED_CONF_FCLK_REQ                   (1 << 1)
-#define        OMAP_TLL_SHARED_CONF_FCLK_IS_ON                 (1 << 0)
-
-#define        OMAP_TLL_CHANNEL_CONF(num)                      (0x040 + 0x004 * num)
-#define OMAP_TLL_CHANNEL_CONF_FSLSMODE_SHIFT           24
-#define        OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF            (1 << 11)
-#define        OMAP_TLL_CHANNEL_CONF_ULPI_ULPIAUTOIDLE         (1 << 10)
-#define        OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE              (1 << 9)
-#define        OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE               (1 << 8)
-#define OMAP_TLL_CHANNEL_CONF_CHANMODE_FSLS            (1 << 1)
-#define        OMAP_TLL_CHANNEL_CONF_CHANEN                    (1 << 0)
-
-#define OMAP_TLL_CHANNEL_COUNT                         3
-
-/* UHH Register Set */
-#define        OMAP_UHH_REVISION                               (0x00)
-#define        OMAP_UHH_SYSCONFIG                              (0x10)
-#define        OMAP_UHH_SYSCONFIG_MIDLEMODE                    (1 << 12)
-#define        OMAP_UHH_SYSCONFIG_CACTIVITY                    (1 << 8)
-#define        OMAP_UHH_SYSCONFIG_SIDLEMODE                    (1 << 3)
-#define        OMAP_UHH_SYSCONFIG_ENAWAKEUP                    (1 << 2)
-#define        OMAP_UHH_SYSCONFIG_SOFTRESET                    (1 << 1)
-#define        OMAP_UHH_SYSCONFIG_AUTOIDLE                     (1 << 0)
-
-#define        OMAP_UHH_SYSSTATUS                              (0x14)
-#define OMAP_UHH_SYSSTATUS_UHHRESETDONE                        (1 << 0)
-#define OMAP_UHH_SYSSTATUS_OHCIRESETDONE               (1 << 1)
-#define OMAP_UHH_SYSSTATUS_EHCIRESETDONE               (1 << 2)
-#define        OMAP_UHH_HOSTCONFIG                             (0x40)
-#define        OMAP_UHH_HOSTCONFIG_ULPI_BYPASS                 (1 << 0)
-#define        OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS              (1 << 0)
-#define        OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS              (1 << 11)
-#define        OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS              (1 << 12)
-#define OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN             (1 << 2)
-#define OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN             (1 << 3)
-#define OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN            (1 << 4)
-#define OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN             (1 << 5)
-#define OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS          (1 << 8)
-#define OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS          (1 << 9)
-#define OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS          (1 << 10)
-
-#define        OMAP_UHH_DEBUG_CSR                              (0x44)
-
 /*-------------------------------------------------------------------------*/
 
-static inline void ohci_omap_writel(void __iomem *base, u32 reg, u32 val)
-{
-       __raw_writel(val, base + reg);
-}
-
-static inline u32 ohci_omap_readl(void __iomem *base, u32 reg)
-{
-       return __raw_readl(base + reg);
-}
-
-static inline void ohci_omap_writeb(void __iomem *base, u8 reg, u8 val)
-{
-       __raw_writeb(val, base + reg);
-}
-
-static inline u8 ohci_omap_readb(void __iomem *base, u8 reg)
-{
-       return __raw_readb(base + reg);
-}
-
-/*-------------------------------------------------------------------------*/
-
-struct ohci_hcd_omap3 {
-       struct ohci_hcd         *ohci;
-       struct device           *dev;
-
-       struct clk              *usbhost_ick;
-       struct clk              *usbhost2_120m_fck;
-       struct clk              *usbhost1_48m_fck;
-       struct clk              *usbtll_fck;
-       struct clk              *usbtll_ick;
-
-       /* port_mode: TLL/PHY, 2/3/4/6-PIN, DP-DM/DAT-SE0 */
-       enum usbhs_omap_port_mode       port_mode[OMAP3_HS_USB_PORTS];
-       void __iomem            *uhh_base;
-       void __iomem            *tll_base;
-       void __iomem            *ohci_base;
-
-       unsigned                es2_compatibility:1;
-};
-
-/*-------------------------------------------------------------------------*/
-
-static void ohci_omap3_clock_power(struct ohci_hcd_omap3 *omap, int on)
-{
-       if (on) {
-               clk_enable(omap->usbtll_ick);
-               clk_enable(omap->usbtll_fck);
-               clk_enable(omap->usbhost_ick);
-               clk_enable(omap->usbhost1_48m_fck);
-               clk_enable(omap->usbhost2_120m_fck);
-       } else {
-               clk_disable(omap->usbhost2_120m_fck);
-               clk_disable(omap->usbhost1_48m_fck);
-               clk_disable(omap->usbhost_ick);
-               clk_disable(omap->usbtll_fck);
-               clk_disable(omap->usbtll_ick);
-       }
-}
-
 static int ohci_omap3_init(struct usb_hcd *hcd)
 {
        dev_dbg(hcd->self.controller, "starting OHCI controller\n");
@@ -175,7 +41,6 @@ static int ohci_omap3_init(struct usb_hcd *hcd)
        return ohci_init(hcd_to_ohci(hcd));
 }
 
-
 /*-------------------------------------------------------------------------*/
 
 static int ohci_omap3_start(struct usb_hcd *hcd)
@@ -202,325 +67,6 @@ static int ohci_omap3_start(struct usb_hcd *hcd)
 
 /*-------------------------------------------------------------------------*/
 
-/*
- * convert the port-mode enum to a value we can use in the FSLSMODE
- * field of USBTLL_CHANNEL_CONF
- */
-static unsigned ohci_omap3_fslsmode(enum usbhs_omap_port_mode mode)
-{
-       switch (mode) {
-       case OMAP_USBHS_PORT_MODE_UNUSED:
-       case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
-               return 0x0;
-
-       case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
-               return 0x1;
-
-       case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
-               return 0x2;
-
-       case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
-               return 0x3;
-
-       case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
-               return 0x4;
-
-       case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
-               return 0x5;
-
-       case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
-               return 0x6;
-
-       case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
-               return 0x7;
-
-       case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
-               return 0xA;
-
-       case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
-               return 0xB;
-       default:
-               pr_warning("Invalid port mode, using default\n");
-               return 0x0;
-       }
-}
-
-static void ohci_omap3_tll_config(struct ohci_hcd_omap3 *omap)
-{
-       u32 reg;
-       int i;
-
-       /* Program TLL SHARED CONF */
-       reg = ohci_omap_readl(omap->tll_base, OMAP_TLL_SHARED_CONF);
-       reg &= ~OMAP_TLL_SHARED_CONF_USB_90D_DDR_EN;
-       reg &= ~OMAP_TLL_SHARED_CONF_USB_180D_SDR_EN;
-       reg |= OMAP_TLL_SHARED_CONF_USB_DIVRATION;
-       reg |= OMAP_TLL_SHARED_CONF_FCLK_IS_ON;
-       ohci_omap_writel(omap->tll_base, OMAP_TLL_SHARED_CONF, reg);
-
-       /* Program each TLL channel */
-       /*
-        * REVISIT: Only the 3-pin and 4-pin PHY modes have
-        * actually been tested.
-        */
-       for (i = 0; i < OMAP_TLL_CHANNEL_COUNT; i++) {
-
-               /* Enable only those channels that are actually used */
-               if (omap->port_mode[i] == OMAP_USBHS_PORT_MODE_UNUSED)
-                       continue;
-
-               reg = ohci_omap_readl(omap->tll_base, OMAP_TLL_CHANNEL_CONF(i));
-               reg |= ohci_omap3_fslsmode(omap->port_mode[i])
-                               << OMAP_TLL_CHANNEL_CONF_FSLSMODE_SHIFT;
-               reg |= OMAP_TLL_CHANNEL_CONF_CHANMODE_FSLS;
-               reg |= OMAP_TLL_CHANNEL_CONF_CHANEN;
-               ohci_omap_writel(omap->tll_base, OMAP_TLL_CHANNEL_CONF(i), reg);
-       }
-}
-
-/* omap3_start_ohci
- *     - Start the TI USBHOST controller
- */
-static int omap3_start_ohci(struct ohci_hcd_omap3 *omap, struct usb_hcd *hcd)
-{
-       unsigned long timeout = jiffies + msecs_to_jiffies(1000);
-       u32 reg = 0;
-       int ret = 0;
-
-       dev_dbg(omap->dev, "starting TI OHCI USB Controller\n");
-
-       /* Get all the clock handles we need */
-       omap->usbhost_ick = clk_get(omap->dev, "usbhost_ick");
-       if (IS_ERR(omap->usbhost_ick)) {
-               dev_err(omap->dev, "could not get usbhost_ick\n");
-               ret =  PTR_ERR(omap->usbhost_ick);
-               goto err_host_ick;
-       }
-
-       omap->usbhost2_120m_fck = clk_get(omap->dev, "usbhost_120m_fck");
-       if (IS_ERR(omap->usbhost2_120m_fck)) {
-               dev_err(omap->dev, "could not get usbhost_120m_fck\n");
-               ret = PTR_ERR(omap->usbhost2_120m_fck);
-               goto err_host_120m_fck;
-       }
-
-       omap->usbhost1_48m_fck = clk_get(omap->dev, "usbhost_48m_fck");
-       if (IS_ERR(omap->usbhost1_48m_fck)) {
-               dev_err(omap->dev, "could not get usbhost_48m_fck\n");
-               ret = PTR_ERR(omap->usbhost1_48m_fck);
-               goto err_host_48m_fck;
-       }
-
-       omap->usbtll_fck = clk_get(omap->dev, "usbtll_fck");
-       if (IS_ERR(omap->usbtll_fck)) {
-               dev_err(omap->dev, "could not get usbtll_fck\n");
-               ret = PTR_ERR(omap->usbtll_fck);
-               goto err_tll_fck;
-       }
-
-       omap->usbtll_ick = clk_get(omap->dev, "usbtll_ick");
-       if (IS_ERR(omap->usbtll_ick)) {
-               dev_err(omap->dev, "could not get usbtll_ick\n");
-               ret = PTR_ERR(omap->usbtll_ick);
-               goto err_tll_ick;
-       }
-
-       /* Now enable all the clocks in the correct order */
-       ohci_omap3_clock_power(omap, 1);
-
-       /* perform TLL soft reset, and wait until reset is complete */
-       ohci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
-                       OMAP_USBTLL_SYSCONFIG_SOFTRESET);
-
-       /* Wait for TLL reset to complete */
-       while (!(ohci_omap_readl(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
-                       & OMAP_USBTLL_SYSSTATUS_RESETDONE)) {
-               cpu_relax();
-
-               if (time_after(jiffies, timeout)) {
-                       dev_dbg(omap->dev, "operation timed out\n");
-                       ret = -EINVAL;
-                       goto err_sys_status;
-               }
-       }
-
-       dev_dbg(omap->dev, "TLL reset done\n");
-
-       /* (1<<3) = no idle mode only for initial debugging */
-       ohci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
-                       OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
-                       OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
-                       OMAP_USBTLL_SYSCONFIG_CACTIVITY);
-
-
-       /* Put UHH in NoIdle/NoStandby mode */
-       reg = ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSCONFIG);
-       reg |= (OMAP_UHH_SYSCONFIG_ENAWAKEUP
-                       | OMAP_UHH_SYSCONFIG_SIDLEMODE
-                       | OMAP_UHH_SYSCONFIG_CACTIVITY
-                       | OMAP_UHH_SYSCONFIG_MIDLEMODE);
-       reg &= ~OMAP_UHH_SYSCONFIG_AUTOIDLE;
-       reg &= ~OMAP_UHH_SYSCONFIG_SOFTRESET;
-
-       ohci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG, reg);
-
-       reg = ohci_omap_readl(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
-
-       /* setup ULPI bypass and burst configurations */
-       reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
-                       | OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
-                       | OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN);
-       reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
-
-       /*
-        * REVISIT: Pi_CONNECT_STATUS controls MStandby
-        * assertion and Swakeup generation - let us not
-        * worry about this for now. OMAP HWMOD framework
-        * might take care of this later. If not, we can
-        * update these registers when adding aggressive
-        * clock management code.
-        *
-        * For now, turn off all the Pi_CONNECT_STATUS bits
-        *
-       if (omap->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
-               reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
-       if (omap->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
-               reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
-       if (omap->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
-               reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
-        */
-       reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
-       reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
-       reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
-
-        if (omap->es2_compatibility) {
-               /*
-                * All OHCI modes need to go through the TLL,
-                * unlike in the EHCI case. So use UTMI mode
-                * for all ports for OHCI, on ES2.x silicon
-                */
-               dev_dbg(omap->dev, "OMAP3 ES version <= ES2.1\n");
-               reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
-       } else {
-               dev_dbg(omap->dev, "OMAP3 ES version > ES2.1\n");
-               if (omap->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
-                       reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
-               else
-                       reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
-
-               if (omap->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
-                       reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
-               else
-                       reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
-
-               if (omap->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
-                       reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
-               else
-                       reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
-
-       }
-       ohci_omap_writel(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
-       dev_dbg(omap->dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
-
-       ohci_omap3_tll_config(omap);
-
-       return 0;
-
-err_sys_status:
-       ohci_omap3_clock_power(omap, 0);
-       clk_put(omap->usbtll_ick);
-
-err_tll_ick:
-       clk_put(omap->usbtll_fck);
-
-err_tll_fck:
-       clk_put(omap->usbhost1_48m_fck);
-
-err_host_48m_fck:
-       clk_put(omap->usbhost2_120m_fck);
-
-err_host_120m_fck:
-       clk_put(omap->usbhost_ick);
-
-err_host_ick:
-       return ret;
-}
-
-static void omap3_stop_ohci(struct ohci_hcd_omap3 *omap, struct usb_hcd *hcd)
-{
-       unsigned long timeout = jiffies + msecs_to_jiffies(100);
-
-       dev_dbg(omap->dev, "stopping TI EHCI USB Controller\n");
-
-       /* Reset USBHOST for insmod/rmmod to work */
-       ohci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG,
-                       OMAP_UHH_SYSCONFIG_SOFTRESET);
-       while (!(ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
-                               & OMAP_UHH_SYSSTATUS_UHHRESETDONE)) {
-               cpu_relax();
-
-               if (time_after(jiffies, timeout))
-                       dev_dbg(omap->dev, "operation timed out\n");
-       }
-
-       while (!(ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
-                               & OMAP_UHH_SYSSTATUS_OHCIRESETDONE)) {
-               cpu_relax();
-
-               if (time_after(jiffies, timeout))
-                       dev_dbg(omap->dev, "operation timed out\n");
-       }
-
-       while (!(ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
-                               & OMAP_UHH_SYSSTATUS_EHCIRESETDONE)) {
-               cpu_relax();
-
-               if (time_after(jiffies, timeout))
-                       dev_dbg(omap->dev, "operation timed out\n");
-       }
-
-       ohci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG, (1 << 1));
-
-       while (!(ohci_omap_readl(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
-                               & (1 << 0))) {
-               cpu_relax();
-
-               if (time_after(jiffies, timeout))
-                       dev_dbg(omap->dev, "operation timed out\n");
-       }
-
-       ohci_omap3_clock_power(omap, 0);
-
-       if (omap->usbtll_fck != NULL) {
-               clk_put(omap->usbtll_fck);
-               omap->usbtll_fck = NULL;
-       }
-
-       if (omap->usbhost_ick != NULL) {
-               clk_put(omap->usbhost_ick);
-               omap->usbhost_ick = NULL;
-       }
-
-       if (omap->usbhost1_48m_fck != NULL) {
-               clk_put(omap->usbhost1_48m_fck);
-               omap->usbhost1_48m_fck = NULL;
-       }
-
-       if (omap->usbhost2_120m_fck != NULL) {
-               clk_put(omap->usbhost2_120m_fck);
-               omap->usbhost2_120m_fck = NULL;
-       }
-
-       if (omap->usbtll_ick != NULL) {
-               clk_put(omap->usbtll_ick);
-               omap->usbtll_ick = NULL;
-       }
-
-       dev_dbg(omap->dev, "Clock to USB host has been disabled\n");
-}
-
-/*-------------------------------------------------------------------------*/
-
 static const struct hc_driver ohci_omap3_hc_driver = {
        .description =          hcd_name,
        .product_desc =         "OMAP3 OHCI Host Controller",
@@ -580,107 +126,77 @@ static const struct hc_driver ohci_omap3_hc_driver = {
  */
 static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
 {
-       struct usbhs_omap_board_data *pdata = pdev->dev.platform_data;
-       struct ohci_hcd_omap3 *omap;
-       struct resource *res;
-       struct usb_hcd *hcd;
-       int ret = -ENODEV;
-       int irq;
+       struct device           *dev = &pdev->dev;
+       struct usb_hcd          *hcd = NULL;
+       void __iomem            *regs = NULL;
+       struct resource         *res;
+       int                     ret = -ENODEV;
+       int                     irq;
 
        if (usb_disabled())
-               goto err_disabled;
+               goto err_end;
 
-       if (!pdata) {
-               dev_dbg(&pdev->dev, "missing platform_data\n");
-               goto err_pdata;
+       if (!dev->parent) {
+               dev_err(dev, "Missing parent device\n");
+               return -ENODEV;
        }
 
-       irq = platform_get_irq(pdev, 0);
+       irq = platform_get_irq_byname(pdev, "ohci-irq");
+       if (irq < 0) {
+               dev_err(dev, "OHCI irq failed\n");
+               return -ENODEV;
+       }
 
-       omap = kzalloc(sizeof(*omap), GFP_KERNEL);
-       if (!omap) {
-               ret = -ENOMEM;
-               goto err_disabled;
+       res = platform_get_resource_byname(pdev,
+                               IORESOURCE_MEM, "ohci");
+       if (!ret) {
+               dev_err(dev, "UHH OHCI get resource failed\n");
+               return -ENOMEM;
        }
 
-       hcd = usb_create_hcd(&ohci_omap3_hc_driver, &pdev->dev,
-                       dev_name(&pdev->dev));
-       if (!hcd) {
-               ret = -ENOMEM;
-               goto err_create_hcd;
+       regs = ioremap(res->start, resource_size(res));
+       if (!regs) {
+               dev_err(dev, "UHH OHCI ioremap failed\n");
+               return -ENOMEM;
        }
 
-       platform_set_drvdata(pdev, omap);
-       omap->dev               = &pdev->dev;
-       omap->port_mode[0]      = pdata->port_mode[0];
-       omap->port_mode[1]      = pdata->port_mode[1];
-       omap->port_mode[2]      = pdata->port_mode[2];
-       omap->es2_compatibility = pdata->es2_compatibility;
-       omap->ohci              = hcd_to_ohci(hcd);
 
-       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ohci");
+       hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev,
+                       dev_name(dev));
+       if (!hcd) {
+               dev_err(dev, "usb_create_hcd failed\n");
+               goto err_io;
+       }
 
        hcd->rsrc_start = res->start;
        hcd->rsrc_len = resource_size(res);
+       hcd->regs =  regs;
 
-       hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
-       if (!hcd->regs) {
-               dev_err(&pdev->dev, "OHCI ioremap failed\n");
-               ret = -ENOMEM;
-               goto err_ioremap;
-       }
-
-       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
-       omap->uhh_base = ioremap(res->start, resource_size(res));
-       if (!omap->uhh_base) {
-               dev_err(&pdev->dev, "UHH ioremap failed\n");
-               ret = -ENOMEM;
-               goto err_uhh_ioremap;
-       }
-
-       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tll");
-       omap->tll_base = ioremap(res->start, resource_size(res));
-       if (!omap->tll_base) {
-               dev_err(&pdev->dev, "TLL ioremap failed\n");
-               ret = -ENOMEM;
-               goto err_tll_ioremap;
-       }
-
-       ret = omap3_start_ohci(omap, hcd);
+       ret = omap_usbhs_enable(dev);
        if (ret) {
-               dev_dbg(&pdev->dev, "failed to start ohci\n");
-               goto err_start;
+               dev_dbg(dev, "failed to start ohci\n");
+               goto err_end;
        }
 
-       ohci_hcd_init(omap->ohci);
+       ohci_hcd_init(hcd_to_ohci(hcd));
 
        ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
        if (ret) {
-               dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret);
+               dev_dbg(dev, "failed to add hcd with err %d\n", ret);
                goto err_add_hcd;
        }
 
        return 0;
 
 err_add_hcd:
-       omap3_stop_ohci(omap, hcd);
-
-err_start:
-       iounmap(omap->tll_base);
-
-err_tll_ioremap:
-       iounmap(omap->uhh_base);
-
-err_uhh_ioremap:
-       iounmap(hcd->regs);
+       omap_usbhs_disable(dev);
 
-err_ioremap:
+err_end:
        usb_put_hcd(hcd);
 
-err_create_hcd:
-       kfree(omap);
-err_pdata:
-err_disabled:
+err_io:
+       iounmap(regs);
+
        return ret;
 }
 
@@ -699,24 +215,20 @@ err_disabled:
  */
 static int __devexit ohci_hcd_omap3_remove(struct platform_device *pdev)
 {
-       struct ohci_hcd_omap3 *omap = platform_get_drvdata(pdev);
-       struct usb_hcd *hcd = ohci_to_hcd(omap->ohci);
+       struct device *dev      = &pdev->dev;
+       struct usb_hcd *hcd     = dev_get_drvdata(dev);
 
-       usb_remove_hcd(hcd);
-       omap3_stop_ohci(omap, hcd);
        iounmap(hcd->regs);
-       iounmap(omap->tll_base);
-       iounmap(omap->uhh_base);
+       usb_remove_hcd(hcd);
+       omap_usbhs_disable(dev);
        usb_put_hcd(hcd);
-       kfree(omap);
 
        return 0;
 }
 
 static void ohci_hcd_omap3_shutdown(struct platform_device *pdev)
 {
-       struct ohci_hcd_omap3 *omap = platform_get_drvdata(pdev);
-       struct usb_hcd *hcd = ohci_to_hcd(omap->ohci);
+       struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev);
 
        if (hcd->driver->shutdown)
                hcd->driver->shutdown(hcd);