omap: Move omap2 FS USB platform init code into mach-omap2/usb-fs.c
authorTony Lindgren <tony@atomide.com>
Mon, 5 Jul 2010 13:31:29 +0000 (16:31 +0300)
committerTony Lindgren <tony@atomide.com>
Mon, 5 Jul 2010 13:31:29 +0000 (16:31 +0300)
Move omap2 FS USB platform init code into mach-omap2/usb-fs.c. This will
allow further work later on to use omap hwmod for initializing the
device.

Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/mach-omap2/Makefile
arch/arm/mach-omap2/board-2430sdp.c
arch/arm/mach-omap2/board-apollon.c
arch/arm/mach-omap2/board-h4.c
arch/arm/mach-omap2/usb-fs.c [new file with mode: 0644]
arch/arm/plat-omap/include/plat/board.h
arch/arm/plat-omap/include/plat/usb.h
arch/arm/plat-omap/usb.c

index 6c6d7c6f7aee2e18e59ca77da3755b7cc5cbeda4..3b384188e28e7bb51d8b0ea9ec7e6463f9f71078 100644 (file)
@@ -149,6 +149,8 @@ obj-$(CONFIG_MACH_OMAP3517EVM)              += board-am3517evm.o
 obj-$(CONFIG_MACH_SBC3530)             += board-omap3stalker.o \
                                           hsmmc.o
 # Platform specific device init code
+usbfs-$(CONFIG_ARCH_OMAP_OTG)          := usb-fs.o
+obj-y                                  += $(usbfs-m) $(usbfs-y)
 obj-y                                  += usb-musb.o
 obj-$(CONFIG_MACH_OMAP2_TUSB6010)      += usb-tusb6010.o
 obj-y                                  += usb-ehci.o
index a11a575745e44c5bcab1d1fd7cc202afeedd06ea..ec920c90a5260e8aefc590036067d08db28a6cd7 100644 (file)
@@ -226,7 +226,7 @@ static void __init omap_2430sdp_init(void)
        platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
        omap_serial_init();
        omap2_hsmmc_init(mmc);
-       omap_usb_init(&sdp2430_usb_config);
+       omap2_usbfs_init(&sdp2430_usb_config);
        usb_musb_init(&musb_board_data);
        board_smc91x_init();
 
index aa69fb999748af3698a6950f9549a59c8260f5a7..987b24d400a8d24f6284d922b893aa3f1637455b 100644 (file)
@@ -306,7 +306,7 @@ static void __init apollon_usb_init(void)
        omap_cfg_reg(P21_242X_GPIO12);
        gpio_request(12, "USB suspend");
        gpio_direction_output(12, 0);
-       omap_usb_init(&apollon_usb_config);
+       omap2_usbfs_init(&apollon_usb_config);
 }
 
 static void __init omap_apollon_init(void)
index 0665f2c8dc8e894a1e949baf2a273e7bef104159..54a231c7465e316068cbe5807bff3dc970af9f82 100644 (file)
@@ -362,7 +362,7 @@ static void __init omap_h4_init(void)
                        ARRAY_SIZE(h4_i2c_board_info));
 
        platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
-       omap_usb_init(&h4_usb_config);
+       omap2_usbfs_init(&h4_usb_config);
        omap_serial_init();
 }
 
diff --git a/arch/arm/mach-omap2/usb-fs.c b/arch/arm/mach-omap2/usb-fs.c
new file mode 100644 (file)
index 0000000..f63e576
--- /dev/null
@@ -0,0 +1,345 @@
+/*
+ * Platform level USB initialization for FS USB OTG controller on omap1 and 24xx
+ *
+ * Copyright (C) 2004 Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <asm/irq.h>
+
+#include <plat/control.h>
+#include <plat/mux.h>
+#include <plat/usb.h>
+#include <plat/board.h>
+
+#define INT_USB_IRQ_GEN                INT_24XX_USB_IRQ_GEN
+#define INT_USB_IRQ_NISO       INT_24XX_USB_IRQ_NISO
+#define INT_USB_IRQ_ISO                INT_24XX_USB_IRQ_ISO
+#define INT_USB_IRQ_HGEN       INT_24XX_USB_IRQ_HGEN
+#define INT_USB_IRQ_OTG                INT_24XX_USB_IRQ_OTG
+
+#if defined(CONFIG_ARCH_OMAP2)
+
+#ifdef CONFIG_USB_GADGET_OMAP
+
+static struct resource udc_resources[] = {
+       /* order is significant! */
+       {               /* registers */
+               .start          = UDC_BASE,
+               .end            = UDC_BASE + 0xff,
+               .flags          = IORESOURCE_MEM,
+       }, {            /* general IRQ */
+               .start          = INT_USB_IRQ_GEN,
+               .flags          = IORESOURCE_IRQ,
+       }, {            /* PIO IRQ */
+               .start          = INT_USB_IRQ_NISO,
+               .flags          = IORESOURCE_IRQ,
+       }, {            /* SOF IRQ */
+               .start          = INT_USB_IRQ_ISO,
+               .flags          = IORESOURCE_IRQ,
+       },
+};
+
+static u64 udc_dmamask = ~(u32)0;
+
+static struct platform_device udc_device = {
+       .name           = "omap_udc",
+       .id             = -1,
+       .dev = {
+               .dma_mask               = &udc_dmamask,
+               .coherent_dma_mask      = 0xffffffff,
+       },
+       .num_resources  = ARRAY_SIZE(udc_resources),
+       .resource       = udc_resources,
+};
+
+static inline void udc_device_init(struct omap_usb_config *pdata)
+{
+       pdata->udc_device = &udc_device;
+}
+
+#else
+
+static inline void udc_device_init(struct omap_usb_config *pdata)
+{
+}
+
+#endif
+
+#if    defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+
+/* The dmamask must be set for OHCI to work */
+static u64 ohci_dmamask = ~(u32)0;
+
+static struct resource ohci_resources[] = {
+       {
+               .start  = OMAP_OHCI_BASE,
+               .end    = OMAP_OHCI_BASE + 0xff,
+               .flags  = IORESOURCE_MEM,
+       },
+       {
+               .start  = INT_USB_IRQ_HGEN,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device ohci_device = {
+       .name                   = "ohci",
+       .id                     = -1,
+       .dev = {
+               .dma_mask               = &ohci_dmamask,
+               .coherent_dma_mask      = 0xffffffff,
+       },
+       .num_resources  = ARRAY_SIZE(ohci_resources),
+       .resource               = ohci_resources,
+};
+
+static inline void ohci_device_init(struct omap_usb_config *pdata)
+{
+       pdata->ohci_device = &ohci_device;
+}
+
+#else
+
+static inline void ohci_device_init(struct omap_usb_config *pdata)
+{
+}
+
+#endif
+
+#if    defined(CONFIG_USB_OTG) && defined(CONFIG_ARCH_OMAP_OTG)
+
+static struct resource otg_resources[] = {
+       /* order is significant! */
+       {
+               .start          = OTG_BASE,
+               .end            = OTG_BASE + 0xff,
+               .flags          = IORESOURCE_MEM,
+       }, {
+               .start          = INT_USB_IRQ_OTG,
+               .flags          = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device otg_device = {
+       .name           = "omap_otg",
+       .id             = -1,
+       .num_resources  = ARRAY_SIZE(otg_resources),
+       .resource       = otg_resources,
+};
+
+static inline void otg_device_init(struct omap_usb_config *pdata)
+{
+       pdata->otg_device = &otg_device;
+}
+
+#else
+
+static inline void otg_device_init(struct omap_usb_config *pdata)
+{
+}
+
+#endif
+
+static void omap2_usb_devconf_clear(u8 port, u32 mask)
+{
+       u32 r;
+
+       r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
+       r &= ~USBTXWRMODEI(port, mask);
+       omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0);
+}
+
+static void omap2_usb_devconf_set(u8 port, u32 mask)
+{
+       u32 r;
+
+       r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
+       r |= USBTXWRMODEI(port, mask);
+       omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0);
+}
+
+static void omap2_usb2_disable_5pinbitll(void)
+{
+       u32 r;
+
+       r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
+       r &= ~(USBTXWRMODEI(2, USB_BIDIR_TLL) | USBT2TLL5PI);
+       omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0);
+}
+
+static void omap2_usb2_enable_5pinunitll(void)
+{
+       u32 r;
+
+       r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
+       r |= USBTXWRMODEI(2, USB_UNIDIR_TLL) | USBT2TLL5PI;
+       omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0);
+}
+
+static u32 __init omap2_usb0_init(unsigned nwires, unsigned is_device)
+{
+       u32     syscon1 = 0;
+
+       omap2_usb_devconf_clear(0, USB_BIDIR_TLL);
+
+       if (nwires == 0)
+               return 0;
+
+       if (is_device)
+               omap_cfg_reg(J20_24XX_USB0_PUEN);
+
+       omap_cfg_reg(K18_24XX_USB0_DAT);
+       omap_cfg_reg(K19_24XX_USB0_TXEN);
+       omap_cfg_reg(J14_24XX_USB0_SE0);
+       if (nwires != 3)
+               omap_cfg_reg(J18_24XX_USB0_RCV);
+
+       switch (nwires) {
+       case 3:
+               syscon1 = 2;
+               omap2_usb_devconf_set(0, USB_BIDIR);
+               break;
+       case 4:
+               syscon1 = 1;
+               omap2_usb_devconf_set(0, USB_BIDIR);
+               break;
+       case 6:
+               syscon1 = 3;
+               omap_cfg_reg(J19_24XX_USB0_VP);
+               omap_cfg_reg(K20_24XX_USB0_VM);
+               omap2_usb_devconf_set(0, USB_UNIDIR);
+               break;
+       default:
+               printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
+                       0, nwires);
+       }
+
+       return syscon1 << 16;
+}
+
+static u32 __init omap2_usb1_init(unsigned nwires)
+{
+       u32     syscon1 = 0;
+
+       omap2_usb_devconf_clear(1, USB_BIDIR_TLL);
+
+       if (nwires == 0)
+               return 0;
+
+       /* NOTE:  board-specific code must set up pin muxing for usb1,
+        * since each signal could come out on either of two balls.
+        */
+
+       switch (nwires) {
+       case 2:
+               /* NOTE: board-specific code must override this setting if
+                * this TLL link is not using DP/DM
+                */
+               syscon1 = 1;
+               omap2_usb_devconf_set(1, USB_BIDIR_TLL);
+               break;
+       case 3:
+               syscon1 = 2;
+               omap2_usb_devconf_set(1, USB_BIDIR);
+               break;
+       case 4:
+               syscon1 = 1;
+               omap2_usb_devconf_set(1, USB_BIDIR);
+               break;
+       case 6:
+       default:
+               printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
+                       1, nwires);
+       }
+
+       return syscon1 << 20;
+}
+
+static u32 __init omap2_usb2_init(unsigned nwires, unsigned alt_pingroup)
+{
+       u32     syscon1 = 0;
+
+       omap2_usb2_disable_5pinbitll();
+       alt_pingroup = 0;
+
+       /* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */
+       if (alt_pingroup || nwires == 0)
+               return 0;
+
+       omap_cfg_reg(Y11_24XX_USB2_DAT);
+       omap_cfg_reg(AA10_24XX_USB2_SE0);
+       if (nwires > 2)
+               omap_cfg_reg(AA12_24XX_USB2_TXEN);
+       if (nwires > 3)
+               omap_cfg_reg(AA6_24XX_USB2_RCV);
+
+       switch (nwires) {
+       case 2:
+               /* NOTE: board-specific code must override this setting if
+                * this TLL link is not using DP/DM
+                */
+               syscon1 = 1;
+               omap2_usb_devconf_set(2, USB_BIDIR_TLL);
+               break;
+       case 3:
+               syscon1 = 2;
+               omap2_usb_devconf_set(2, USB_BIDIR);
+               break;
+       case 4:
+               syscon1 = 1;
+               omap2_usb_devconf_set(2, USB_BIDIR);
+               break;
+       case 5:
+               omap_cfg_reg(AA4_24XX_USB2_TLLSE0);
+               /* NOTE: board-specific code must override this setting if
+                * this TLL link is not using DP/DM.  Something must also
+                * set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED}
+                */
+               syscon1 = 3;
+               omap2_usb2_enable_5pinunitll();
+               break;
+       case 6:
+       default:
+               printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
+                       2, nwires);
+       }
+
+       return syscon1 << 24;
+}
+
+void __init omap2_usbfs_init(struct omap_usb_config *pdata)
+{
+       if (!cpu_is_omap24xx())
+               return;
+
+       pdata->usb0_init = omap2_usb0_init;
+       pdata->usb1_init = omap2_usb1_init;
+       pdata->usb2_init = omap2_usb2_init;
+       udc_device_init(pdata);
+       ohci_device_init(pdata);
+       otg_device_init(pdata);
+       omap_otg_init(pdata);
+}
+
+#endif
index 5cd622039da0db81f4a7b1275449ddd11f830bb1..3cf4fa25ab3d078a49e9488effaebf571fa128da 100644 (file)
@@ -85,6 +85,14 @@ struct omap_usb_config {
         *  6 == 6 wire unidirectional (or TLL)
         */
        u8              pins[3];
+
+       struct platform_device *udc_device;
+       struct platform_device *ohci_device;
+       struct platform_device *otg_device;
+
+       u32 (*usb0_init)(unsigned nwires, unsigned is_device);
+       u32 (*usb1_init)(unsigned nwires);
+       u32 (*usb2_init)(unsigned nwires, unsigned alt_pingroup);
 };
 
 struct omap_lcd_config {
index 98eef5360e6d7cbfebfdcb199ab4565e80fb81b5..9f792244e77cfc6f7517134998d61bb6f79a2cab 100644 (file)
@@ -81,7 +81,14 @@ extern void usb_ohci_init(const struct ohci_hcd_omap_platform_data *pdata);
 
 #endif
 
+void omap_otg_init(struct omap_usb_config *config);
 void omap_usb_init(struct omap_usb_config *pdata);
+void omap2_usbfs_init(struct omap_usb_config *pdata);
+#else
+static inline omap2_usbfs_init(struct omap_usb_config *pdata)
+{
+}
+#endif
 
 /*-------------------------------------------------------------------------*/
 
index 9c4929a33e525bb32807bbc87b865bf824cf28db..27b471ce11a00129c40eca799e6d0480438be0bb 100644 (file)
 #include <plat/usb.h>
 #include <plat/board.h>
 
-#ifdef CONFIG_ARCH_OMAP1
-
 #define INT_USB_IRQ_GEN                IH2_BASE + 20
 #define INT_USB_IRQ_NISO       IH2_BASE + 30
 #define INT_USB_IRQ_ISO                IH2_BASE + 29
 #define INT_USB_IRQ_HGEN       INT_USB_HHC_1
 #define INT_USB_IRQ_OTG                IH2_BASE + 8
 
-#else
-
-#define INT_USB_IRQ_GEN                INT_24XX_USB_IRQ_GEN
-#define INT_USB_IRQ_NISO       INT_24XX_USB_IRQ_NISO
-#define INT_USB_IRQ_ISO                INT_24XX_USB_IRQ_ISO
-#define INT_USB_IRQ_HGEN       INT_24XX_USB_IRQ_HGEN
-#define INT_USB_IRQ_OTG                INT_24XX_USB_IRQ_OTG
-
-#endif
-
-
 /* These routines should handle the standard chip-specific modes
  * for usb0/1/2 ports, covering basic mux and transceiver setup.
  *
 
 #if defined(CONFIG_ARCH_OMAP_OTG) || defined(CONFIG_ARCH_OMAP15XX)
 
-static void omap2_usb_devconf_clear(u8 port, u32 mask)
-{
-       u32 r;
-
-       r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
-       r &= ~USBTXWRMODEI(port, mask);
-       omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0);
-}
-
-static void omap2_usb_devconf_set(u8 port, u32 mask)
-{
-       u32 r;
-
-       r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
-       r |= USBTXWRMODEI(port, mask);
-       omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0);
-}
-
-static void omap2_usb2_disable_5pinbitll(void)
-{
-       u32 r;
-
-       r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
-       r &= ~(USBTXWRMODEI(2, USB_BIDIR_TLL) | USBT2TLL5PI);
-       omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0);
-}
-
-static void omap2_usb2_enable_5pinunitll(void)
-{
-       u32 r;
-
-       r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
-       r |= USBTXWRMODEI(2, USB_UNIDIR_TLL) | USBT2TLL5PI;
-       omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0);
-}
-
-static u32 __init omap2_usb0_init(unsigned nwires, unsigned is_device)
-{
-       u32     syscon1 = 0;
-
-       omap2_usb_devconf_clear(0, USB_BIDIR_TLL);
-
-       if (nwires == 0)
-               return 0;
-
-       if (is_device)
-               omap_cfg_reg(J20_24XX_USB0_PUEN);
-
-       omap_cfg_reg(K18_24XX_USB0_DAT);
-       omap_cfg_reg(K19_24XX_USB0_TXEN);
-       omap_cfg_reg(J14_24XX_USB0_SE0);
-       if (nwires != 3)
-               omap_cfg_reg(J18_24XX_USB0_RCV);
-
-       switch (nwires) {
-       case 3:
-               syscon1 = 2;
-               omap2_usb_devconf_set(0, USB_BIDIR);
-               break;
-       case 4:
-               syscon1 = 1;
-               omap2_usb_devconf_set(0, USB_BIDIR);
-               break;
-       case 6:
-               syscon1 = 3;
-               omap_cfg_reg(J19_24XX_USB0_VP);
-               omap_cfg_reg(K20_24XX_USB0_VM);
-               omap2_usb_devconf_set(0, USB_UNIDIR);
-               break;
-       default:
-               printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
-                       0, nwires);
-       }
-
-       return syscon1 << 16;
-}
-
 static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
 {
        u32     syscon1 = 0;
 
-       if (cpu_is_omap24xx())
-               return omap2_usb0_init(nwires, is_device);
-
        if (nwires == 0) {
                if (!cpu_is_omap15xx()) {
                        u32 l;
@@ -266,51 +173,10 @@ static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
        return syscon1 << 16;
 }
 
-static u32 __init omap2_usb1_init(unsigned nwires)
-{
-       u32     syscon1 = 0;
-
-       omap2_usb_devconf_clear(1, USB_BIDIR_TLL);
-
-       if (nwires == 0)
-               return 0;
-
-       /* NOTE:  board-specific code must set up pin muxing for usb1,
-        * since each signal could come out on either of two balls.
-        */
-
-       switch (nwires) {
-       case 2:
-               /* NOTE: board-specific code must override this setting if
-                * this TLL link is not using DP/DM
-                */
-               syscon1 = 1;
-               omap2_usb_devconf_set(1, USB_BIDIR_TLL);
-               break;
-       case 3:
-               syscon1 = 2;
-               omap2_usb_devconf_set(1, USB_BIDIR);
-               break;
-       case 4:
-               syscon1 = 1;
-               omap2_usb_devconf_set(1, USB_BIDIR);
-               break;
-       case 6:
-       default:
-               printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
-                       1, nwires);
-       }
-
-       return syscon1 << 20;
-}
-
 static u32 __init omap_usb1_init(unsigned nwires)
 {
        u32     syscon1 = 0;
 
-       if (cpu_is_omap24xx())
-               return omap2_usb1_init(nwires);
-
        if (!cpu_is_omap15xx() && nwires != 6) {
                u32 l;
 
@@ -372,65 +238,10 @@ bad:
        return syscon1 << 20;
 }
 
-static u32 __init omap2_usb2_init(unsigned nwires, unsigned alt_pingroup)
-{
-       u32     syscon1 = 0;
-
-       omap2_usb2_disable_5pinbitll();
-       alt_pingroup = 0;
-
-       /* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */
-       if (alt_pingroup || nwires == 0)
-               return 0;
-
-       omap_cfg_reg(Y11_24XX_USB2_DAT);
-       omap_cfg_reg(AA10_24XX_USB2_SE0);
-       if (nwires > 2)
-               omap_cfg_reg(AA12_24XX_USB2_TXEN);
-       if (nwires > 3)
-               omap_cfg_reg(AA6_24XX_USB2_RCV);
-
-       switch (nwires) {
-       case 2:
-               /* NOTE: board-specific code must override this setting if
-                * this TLL link is not using DP/DM
-                */
-               syscon1 = 1;
-               omap2_usb_devconf_set(2, USB_BIDIR_TLL);
-               break;
-       case 3:
-               syscon1 = 2;
-               omap2_usb_devconf_set(2, USB_BIDIR);
-               break;
-       case 4:
-               syscon1 = 1;
-               omap2_usb_devconf_set(2, USB_BIDIR);
-               break;
-       case 5:
-               omap_cfg_reg(AA4_24XX_USB2_TLLSE0);
-               /* NOTE: board-specific code must override this setting if
-                * this TLL link is not using DP/DM.  Something must also
-                * set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED}
-                */
-               syscon1 = 3;
-               omap2_usb2_enable_5pinunitll();
-               break;
-       case 6:
-       default:
-               printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
-                       2, nwires);
-       }
-
-       return syscon1 << 24;
-}
-
 static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
 {
        u32     syscon1 = 0;
 
-       if (cpu_is_omap24xx())
-               return omap2_usb2_init(nwires, alt_pingroup);
-
        /* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */
        if (alt_pingroup || nwires == 0)
                return 0;
@@ -498,6 +309,10 @@ bad:
        return syscon1 << 24;
 }
 
+#else
+#define omap_usb0_init         NULL
+#define omap_usb1_init         NULL
+#define omap_usb2_init         NULL
 #endif
 
 /*-------------------------------------------------------------------------*/
@@ -535,6 +350,17 @@ static struct platform_device udc_device = {
        .resource       = udc_resources,
 };
 
+static inline void udc_device_init(struct omap_usb_config *pdata)
+{
+       pdata->udc_device = &udc_device;
+}
+
+#else
+
+static inline void udc_device_init(struct omap_usb_config *pdata)
+{
+}
+
 #endif
 
 #if    defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
@@ -565,6 +391,17 @@ static struct platform_device ohci_device = {
        .resource               = ohci_resources,
 };
 
+static inline void ohci_device_init(struct omap_usb_config *pdata)
+{
+       pdata->ohci_device = &ohci_device;
+}
+
+#else
+
+static inline void ohci_device_init(struct omap_usb_config *pdata)
+{
+}
+
 #endif
 
 #if    defined(CONFIG_USB_OTG) && defined(CONFIG_ARCH_OMAP_OTG)
@@ -588,6 +425,17 @@ static struct platform_device otg_device = {
        .resource       = otg_resources,
 };
 
+static inline void otg_device_init(struct omap_usb_config *pdata)
+{
+       pdata->otg_device = &otg_device;
+}
+
+#else
+
+static inline void otg_device_init(struct omap_usb_config *pdata)
+{
+}
+
 #endif
 
 /*-------------------------------------------------------------------------*/
@@ -622,9 +470,9 @@ omap_otg_init(struct omap_usb_config *config)
        /* pin muxing and transceiver pinouts */
        if (config->pins[0] > 2)        /* alt pingroup 2 */
                alt_pingroup = 1;
-       syscon |= omap_usb0_init(config->pins[0], is_usb0_device(config));
-       syscon |= omap_usb1_init(config->pins[1]);
-       syscon |= omap_usb2_init(config->pins[2], alt_pingroup);
+       syscon |= config->usb0_init(config->pins[0], is_usb0_device(config));
+       syscon |= config->usb1_init(config->pins[1]);
+       syscon |= config->usb2_init(config->pins[2], alt_pingroup);
        pr_debug("OTG_SYSCON_1 = %08x\n", omap_readl(OTG_SYSCON_1));
        omap_writel(syscon, OTG_SYSCON_1);
 
@@ -672,15 +520,17 @@ omap_otg_init(struct omap_usb_config *config)
 
 #ifdef CONFIG_USB_GADGET_OMAP
        if (config->otg || config->register_dev) {
+               struct platform_device *udc_device = config->udc_device;
+
                syscon &= ~DEV_IDLE_EN;
-               udc_device.dev.platform_data = config;
+               udc_device->dev.platform_data = config;
                /* IRQ numbers for omap7xx */
                if(cpu_is_omap7xx()) {
                        udc_resources[1].start = INT_7XX_USB_GENI;
                        udc_resources[2].start = INT_7XX_USB_NON_ISO;
                        udc_resources[3].start = INT_7XX_USB_ISO;
                }
-               status = platform_device_register(&udc_device);
+               status = platform_device_register(udc_device);
                if (status)
                        pr_debug("can't register UDC device, %d\n", status);
        }
@@ -688,11 +538,13 @@ omap_otg_init(struct omap_usb_config *config)
 
 #if    defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
        if (config->otg || config->register_host) {
+               struct platform_device *ohci_device = config->ohci_device;
+
                syscon &= ~HST_IDLE_EN;
-               ohci_device.dev.platform_data = config;
+               ohci_device->dev.platform_data = config;
                if (cpu_is_omap7xx())
                        ohci_resources[1].start = INT_7XX_USB_HHC_1;
-               status = platform_device_register(&ohci_device);
+               status = platform_device_register(ohci_device);
                if (status)
                        pr_debug("can't register OHCI device, %d\n", status);
        }
@@ -700,11 +552,13 @@ omap_otg_init(struct omap_usb_config *config)
 
 #ifdef CONFIG_USB_OTG
        if (config->otg) {
+               struct platform_device *otg_device = config->otg_device;
+
                syscon &= ~OTG_IDLE_EN;
-               otg_device.dev.platform_data = config;
+               otg_device->dev.platform_data = config;
                if (cpu_is_omap7xx())
                        otg_resources[1].start = INT_7XX_USB_OTG;
-               status = platform_device_register(&otg_device);
+               status = platform_device_register(otg_device);
                if (status)
                        pr_debug("can't register OTG device, %d\n", status);
        }
@@ -716,7 +570,7 @@ omap_otg_init(struct omap_usb_config *config)
 }
 
 #else
-static inline void omap_otg_init(struct omap_usb_config *config) {}
+void omap_otg_init(struct omap_usb_config *config) {}
 #endif
 
 /*-------------------------------------------------------------------------*/
@@ -737,9 +591,9 @@ static void __init omap_1510_usb_init(struct omap_usb_config *config)
        unsigned int val;
        u16 w;
 
-       omap_usb0_init(config->pins[0], is_usb0_device(config));
-       omap_usb1_init(config->pins[1]);
-       omap_usb2_init(config->pins[2], 0);
+       config->usb0_init(config->pins[0], is_usb0_device(config));
+       config->usb1_init(config->pins[1]);
+       config->usb2_init(config->pins[2], 0);
 
        val = omap_readl(MOD_CONF_CTRL_0) & ~(0x3f << 1);
        val |= (config->hmc_mode << 1);
@@ -807,7 +661,14 @@ static inline void omap_1510_usb_init(struct omap_usb_config *config) {}
 
 void __init omap_usb_init(struct omap_usb_config *pdata)
 {
-       if (cpu_is_omap7xx() || cpu_is_omap16xx() || cpu_is_omap24xx())
+       pdata->usb0_init = omap_usb0_init;
+       pdata->usb1_init = omap_usb1_init;
+       pdata->usb2_init = omap_usb2_init;
+       udc_device_init(pdata);
+       ohci_device_init(pdata);
+       otg_device_init(pdata);
+
+       if (cpu_is_omap7xx() || cpu_is_omap16xx())
                omap_otg_init(pdata);
        else if (cpu_is_omap15xx())
                omap_1510_usb_init(pdata);