| /* |
| * Texas Instruments DSPS platforms "glue layer" |
| * |
| * Copyright (C) 2012, by Texas Instruments |
| * |
| * Based on the am35x "glue layer" code. |
| * |
| * This file is part of the Inventra Controller Driver for Linux. |
| * |
| * The Inventra Controller Driver for Linux is free software; you |
| * can redistribute it and/or modify it under the terms of the GNU |
| * General Public License version 2 as published by the Free Software |
| * Foundation. |
| * |
| * The Inventra Controller Driver for Linux 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 The Inventra Controller Driver for Linux ; if not, |
| * write to the Free Software Foundation, Inc., 59 Temple Place, |
| * Suite 330, Boston, MA 02111-1307 USA |
| * |
| * musb_dsps.c will be a common file for all the TI DSPS platforms |
| * such as dm64x, dm36x, dm35x, da8x, am35x and ti81x. |
| * For now only ti81x is using this and in future davinci.c, am35x.c |
| * da8xx.c would be merged to this file after testing. |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/io.h> |
| #include <linux/of.h> |
| #include <linux/err.h> |
| #include <linux/platform_device.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/module.h> |
| #include <linux/usb/nop-usb-xceiv.h> |
| |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| #include <linux/of_address.h> |
| |
| #include <plat/usb.h> |
| |
| #include "musb_core.h" |
| |
| #ifdef CONFIG_OF |
| static const struct of_device_id musb_dsps_of_match[]; |
| #endif |
| |
| /** |
| * avoid using musb_readx()/musb_writex() as glue layer should not be |
| * dependent on musb core layer symbols. |
| */ |
| static inline u8 dsps_readb(const void __iomem *addr, unsigned offset) |
| { return __raw_readb(addr + offset); } |
| |
| static inline u32 dsps_readl(const void __iomem *addr, unsigned offset) |
| { return __raw_readl(addr + offset); } |
| |
| static inline void dsps_writeb(void __iomem *addr, unsigned offset, u8 data) |
| { __raw_writeb(data, addr + offset); } |
| |
| static inline void dsps_writel(void __iomem *addr, unsigned offset, u32 data) |
| { __raw_writel(data, addr + offset); } |
| |
| /** |
| * DSPS musb wrapper register offset. |
| * FIXME: This should be expanded to have all the wrapper registers from TI DSPS |
| * musb ips. |
| */ |
| struct dsps_musb_wrapper { |
| u16 revision; |
| u16 control; |
| u16 status; |
| u16 eoi; |
| u16 epintr_set; |
| u16 epintr_clear; |
| u16 epintr_status; |
| u16 coreintr_set; |
| u16 coreintr_clear; |
| u16 coreintr_status; |
| u16 phy_utmi; |
| u16 mode; |
| |
| /* bit positions for control */ |
| unsigned reset:5; |
| |
| /* bit positions for interrupt */ |
| unsigned usb_shift:5; |
| u32 usb_mask; |
| u32 usb_bitmap; |
| unsigned drvvbus:5; |
| |
| unsigned txep_shift:5; |
| u32 txep_mask; |
| u32 txep_bitmap; |
| |
| unsigned rxep_shift:5; |
| u32 rxep_mask; |
| u32 rxep_bitmap; |
| |
| /* bit positions for phy_utmi */ |
| unsigned otg_disable:5; |
| |
| /* bit positions for mode */ |
| unsigned iddig:5; |
| /* miscellaneous stuff */ |
| u32 musb_core_offset; |
| u8 poll_seconds; |
| /* number of musb instances */ |
| u8 instances; |
| }; |
| |
| /** |
| * DSPS glue structure. |
| */ |
| struct dsps_glue { |
| struct device *dev; |
| struct platform_device *musb[2]; /* child musb pdev */ |
| const struct dsps_musb_wrapper *wrp; /* wrapper register offsets */ |
| struct timer_list timer[2]; /* otg_workaround timer */ |
| unsigned long last_timer[2]; /* last timer data for each instance */ |
| }; |
| |
| /** |
| * dsps_musb_enable - enable interrupts |
| */ |
| static void dsps_musb_enable(struct musb *musb) |
| { |
| struct device *dev = musb->controller; |
| struct platform_device *pdev = to_platform_device(dev->parent); |
| struct dsps_glue *glue = platform_get_drvdata(pdev); |
| const struct dsps_musb_wrapper *wrp = glue->wrp; |
| void __iomem *reg_base = musb->ctrl_base; |
| u32 epmask, coremask; |
| |
| /* Workaround: setup IRQs through both register sets. */ |
| epmask = ((musb->epmask & wrp->txep_mask) << wrp->txep_shift) | |
| ((musb->epmask & wrp->rxep_mask) << wrp->rxep_shift); |
| coremask = (wrp->usb_bitmap & ~MUSB_INTR_SOF); |
| |
| dsps_writel(reg_base, wrp->epintr_set, epmask); |
| dsps_writel(reg_base, wrp->coreintr_set, coremask); |
| /* Force the DRVVBUS IRQ so we can start polling for ID change. */ |
| dsps_writel(reg_base, wrp->coreintr_set, |
| (1 << wrp->drvvbus) << wrp->usb_shift); |
| } |
| |
| /** |
| * dsps_musb_disable - disable HDRC and flush interrupts |
| */ |
| static void dsps_musb_disable(struct musb *musb) |
| { |
| struct device *dev = musb->controller; |
| struct platform_device *pdev = to_platform_device(dev->parent); |
| struct dsps_glue *glue = platform_get_drvdata(pdev); |
| const struct dsps_musb_wrapper *wrp = glue->wrp; |
| void __iomem *reg_base = musb->ctrl_base; |
| |
| dsps_writel(reg_base, wrp->coreintr_clear, wrp->usb_bitmap); |
| dsps_writel(reg_base, wrp->epintr_clear, |
| wrp->txep_bitmap | wrp->rxep_bitmap); |
| dsps_writeb(musb->mregs, MUSB_DEVCTL, 0); |
| dsps_writel(reg_base, wrp->eoi, 0); |
| } |
| |
| static void otg_timer(unsigned long _musb) |
| { |
| struct musb *musb = (void *)_musb; |
| void __iomem *mregs = musb->mregs; |
| struct device *dev = musb->controller; |
| struct platform_device *pdev = to_platform_device(dev); |
| struct dsps_glue *glue = dev_get_drvdata(dev->parent); |
| const struct dsps_musb_wrapper *wrp = glue->wrp; |
| u8 devctl; |
| unsigned long flags; |
| |
| /* |
| * We poll because DSPS IP's won't expose several OTG-critical |
| * status change events (from the transceiver) otherwise. |
| */ |
| devctl = dsps_readb(mregs, MUSB_DEVCTL); |
| dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl, |
| otg_state_string(musb->xceiv->state)); |
| |
| spin_lock_irqsave(&musb->lock, flags); |
| switch (musb->xceiv->state) { |
| case OTG_STATE_A_WAIT_BCON: |
| devctl &= ~MUSB_DEVCTL_SESSION; |
| dsps_writeb(musb->mregs, MUSB_DEVCTL, devctl); |
| |
| devctl = dsps_readb(musb->mregs, MUSB_DEVCTL); |
| if (devctl & MUSB_DEVCTL_BDEVICE) { |
| musb->xceiv->state = OTG_STATE_B_IDLE; |
| MUSB_DEV_MODE(musb); |
| } else { |
| musb->xceiv->state = OTG_STATE_A_IDLE; |
| MUSB_HST_MODE(musb); |
| } |
| break; |
| case OTG_STATE_A_WAIT_VFALL: |
| musb->xceiv->state = OTG_STATE_A_WAIT_VRISE; |
| dsps_writel(musb->ctrl_base, wrp->coreintr_set, |
| MUSB_INTR_VBUSERROR << wrp->usb_shift); |
| break; |
| case OTG_STATE_B_IDLE: |
| devctl = dsps_readb(mregs, MUSB_DEVCTL); |
| if (devctl & MUSB_DEVCTL_BDEVICE) |
| mod_timer(&glue->timer[pdev->id], |
| jiffies + wrp->poll_seconds * HZ); |
| else |
| musb->xceiv->state = OTG_STATE_A_IDLE; |
| break; |
| default: |
| break; |
| } |
| spin_unlock_irqrestore(&musb->lock, flags); |
| } |
| |
| static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout) |
| { |
| struct device *dev = musb->controller; |
| struct platform_device *pdev = to_platform_device(dev); |
| struct dsps_glue *glue = dev_get_drvdata(dev->parent); |
| |
| if (timeout == 0) |
| timeout = jiffies + msecs_to_jiffies(3); |
| |
| /* Never idle if active, or when VBUS timeout is not set as host */ |
| if (musb->is_active || (musb->a_wait_bcon == 0 && |
| musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) { |
| dev_dbg(musb->controller, "%s active, deleting timer\n", |
| otg_state_string(musb->xceiv->state)); |
| del_timer(&glue->timer[pdev->id]); |
| glue->last_timer[pdev->id] = jiffies; |
| return; |
| } |
| |
| if (time_after(glue->last_timer[pdev->id], timeout) && |
| timer_pending(&glue->timer[pdev->id])) { |
| dev_dbg(musb->controller, |
| "Longer idle timer already pending, ignoring...\n"); |
| return; |
| } |
| glue->last_timer[pdev->id] = timeout; |
| |
| dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n", |
| otg_state_string(musb->xceiv->state), |
| jiffies_to_msecs(timeout - jiffies)); |
| mod_timer(&glue->timer[pdev->id], timeout); |
| } |
| |
| static irqreturn_t dsps_interrupt(int irq, void *hci) |
| { |
| struct musb *musb = hci; |
| void __iomem *reg_base = musb->ctrl_base; |
| struct device *dev = musb->controller; |
| struct platform_device *pdev = to_platform_device(dev); |
| struct dsps_glue *glue = dev_get_drvdata(dev->parent); |
| const struct dsps_musb_wrapper *wrp = glue->wrp; |
| unsigned long flags; |
| irqreturn_t ret = IRQ_NONE; |
| u32 epintr, usbintr; |
| |
| spin_lock_irqsave(&musb->lock, flags); |
| |
| /* Get endpoint interrupts */ |
| epintr = dsps_readl(reg_base, wrp->epintr_status); |
| musb->int_rx = (epintr & wrp->rxep_bitmap) >> wrp->rxep_shift; |
| musb->int_tx = (epintr & wrp->txep_bitmap) >> wrp->txep_shift; |
| |
| if (epintr) |
| dsps_writel(reg_base, wrp->epintr_status, epintr); |
| |
| /* Get usb core interrupts */ |
| usbintr = dsps_readl(reg_base, wrp->coreintr_status); |
| if (!usbintr && !epintr) |
| goto eoi; |
| |
| musb->int_usb = (usbintr & wrp->usb_bitmap) >> wrp->usb_shift; |
| if (usbintr) |
| dsps_writel(reg_base, wrp->coreintr_status, usbintr); |
| |
| dev_dbg(musb->controller, "usbintr (%x) epintr(%x)\n", |
| usbintr, epintr); |
| /* |
| * DRVVBUS IRQs are the only proxy we have (a very poor one!) for |
| * DSPS IP's missing ID change IRQ. We need an ID change IRQ to |
| * switch appropriately between halves of the OTG state machine. |
| * Managing DEVCTL.SESSION per Mentor docs requires that we know its |
| * value but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set. |
| * Also, DRVVBUS pulses for SRP (but not at 5V) ... |
| */ |
| if (usbintr & MUSB_INTR_BABBLE) |
| pr_info("CAUTION: musb: Babble Interrupt Occured\n"); |
| |
| if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) { |
| int drvvbus = dsps_readl(reg_base, wrp->status); |
| void __iomem *mregs = musb->mregs; |
| u8 devctl = dsps_readb(mregs, MUSB_DEVCTL); |
| int err; |
| |
| err = musb->int_usb & MUSB_INTR_VBUSERROR; |
| if (err) { |
| /* |
| * The Mentor core doesn't debounce VBUS as needed |
| * to cope with device connect current spikes. This |
| * means it's not uncommon for bus-powered devices |
| * to get VBUS errors during enumeration. |
| * |
| * This is a workaround, but newer RTL from Mentor |
| * seems to allow a better one: "re"-starting sessions |
| * without waiting for VBUS to stop registering in |
| * devctl. |
| */ |
| musb->int_usb &= ~MUSB_INTR_VBUSERROR; |
| musb->xceiv->state = OTG_STATE_A_WAIT_VFALL; |
| mod_timer(&glue->timer[pdev->id], |
| jiffies + wrp->poll_seconds * HZ); |
| WARNING("VBUS error workaround (delay coming)\n"); |
| } else if (drvvbus) { |
| musb->is_active = 1; |
| MUSB_HST_MODE(musb); |
| musb->xceiv->otg->default_a = 1; |
| musb->xceiv->state = OTG_STATE_A_WAIT_VRISE; |
| del_timer(&glue->timer[pdev->id]); |
| } else { |
| musb->is_active = 0; |
| MUSB_DEV_MODE(musb); |
| musb->xceiv->otg->default_a = 0; |
| musb->xceiv->state = OTG_STATE_B_IDLE; |
| } |
| |
| /* NOTE: this must complete power-on within 100 ms. */ |
| dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n", |
| drvvbus ? "on" : "off", |
| otg_state_string(musb->xceiv->state), |
| err ? " ERROR" : "", |
| devctl); |
| ret = IRQ_HANDLED; |
| } |
| |
| if (musb->int_tx || musb->int_rx || musb->int_usb) |
| ret |= musb_interrupt(musb); |
| |
| eoi: |
| /* EOI needs to be written for the IRQ to be re-asserted. */ |
| if (ret == IRQ_HANDLED || epintr || usbintr) |
| dsps_writel(reg_base, wrp->eoi, 1); |
| |
| /* Poll for ID change */ |
| if (musb->xceiv->state == OTG_STATE_B_IDLE) |
| mod_timer(&glue->timer[pdev->id], |
| jiffies + wrp->poll_seconds * HZ); |
| |
| spin_unlock_irqrestore(&musb->lock, flags); |
| |
| return ret; |
| } |
| |
| static int dsps_musb_init(struct musb *musb) |
| { |
| struct device *dev = musb->controller; |
| struct platform_device *pdev = to_platform_device(dev); |
| struct dsps_glue *glue = dev_get_drvdata(dev->parent); |
| const struct dsps_musb_wrapper *wrp = glue->wrp; |
| void __iomem *reg_base = musb->ctrl_base; |
| u32 rev, val; |
| int status; |
| |
| /* mentor core register starts at offset of 0x400 from musb base */ |
| musb->mregs += wrp->musb_core_offset; |
| |
| /* Get the NOP PHY */ |
| musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); |
| if (IS_ERR_OR_NULL(musb->xceiv)) |
| return -ENODEV; |
| |
| /* Returns zero if e.g. not clocked */ |
| rev = dsps_readl(reg_base, wrp->revision); |
| if (!rev) { |
| status = -ENODEV; |
| goto err0; |
| } |
| |
| setup_timer(&glue->timer[pdev->id], otg_timer, (unsigned long) musb); |
| |
| /* Reset the musb */ |
| dsps_writel(reg_base, wrp->control, (1 << wrp->reset)); |
| |
| musb->isr = dsps_interrupt; |
| |
| /* reset the otgdisable bit, needed for host mode to work */ |
| val = dsps_readl(reg_base, wrp->phy_utmi); |
| val &= ~(1 << wrp->otg_disable); |
| dsps_writel(musb->ctrl_base, wrp->phy_utmi, val); |
| |
| /* clear level interrupt */ |
| dsps_writel(reg_base, wrp->eoi, 0); |
| |
| return 0; |
| err0: |
| usb_put_phy(musb->xceiv); |
| usb_nop_xceiv_unregister(); |
| return status; |
| } |
| |
| static int dsps_musb_exit(struct musb *musb) |
| { |
| struct device *dev = musb->controller; |
| struct platform_device *pdev = to_platform_device(dev); |
| struct dsps_glue *glue = dev_get_drvdata(dev->parent); |
| |
| del_timer_sync(&glue->timer[pdev->id]); |
| |
| /* NOP driver needs change if supporting dual instance */ |
| usb_put_phy(musb->xceiv); |
| usb_nop_xceiv_unregister(); |
| |
| return 0; |
| } |
| |
| static struct musb_platform_ops dsps_ops = { |
| .init = dsps_musb_init, |
| .exit = dsps_musb_exit, |
| |
| .enable = dsps_musb_enable, |
| .disable = dsps_musb_disable, |
| |
| .try_idle = dsps_musb_try_idle, |
| }; |
| |
| static u64 musb_dmamask = DMA_BIT_MASK(32); |
| |
| static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id) |
| { |
| struct device *dev = glue->dev; |
| struct platform_device *pdev = to_platform_device(dev); |
| struct musb_hdrc_platform_data *pdata = dev->platform_data; |
| struct device_node *np = pdev->dev.of_node; |
| struct musb_hdrc_config *config; |
| struct platform_device *musb; |
| struct resource *res; |
| struct resource resources[2]; |
| char res_name[10]; |
| int ret; |
| |
| /* first resource is for usbss, so start index from 1 */ |
| res = platform_get_resource(pdev, IORESOURCE_MEM, id + 1); |
| if (!res) { |
| dev_err(dev, "failed to get memory for instance %d\n", id); |
| ret = -ENODEV; |
| goto err0; |
| } |
| res->parent = NULL; |
| resources[0] = *res; |
| |
| /* first resource is for usbss, so start index from 1 */ |
| res = platform_get_resource(pdev, IORESOURCE_IRQ, id + 1); |
| if (!res) { |
| dev_err(dev, "failed to get irq for instance %d\n", id); |
| ret = -ENODEV; |
| goto err0; |
| } |
| res->parent = NULL; |
| resources[1] = *res; |
| resources[1].name = "mc"; |
| |
| /* allocate the child platform device */ |
| musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); |
| if (!musb) { |
| dev_err(dev, "failed to allocate musb device\n"); |
| ret = -ENOMEM; |
| goto err0; |
| } |
| |
| musb->dev.parent = dev; |
| musb->dev.dma_mask = &musb_dmamask; |
| musb->dev.coherent_dma_mask = musb_dmamask; |
| |
| glue->musb[id] = musb; |
| |
| ret = platform_device_add_resources(musb, resources, 2); |
| if (ret) { |
| dev_err(dev, "failed to add resources\n"); |
| goto err2; |
| } |
| |
| if (np) { |
| pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); |
| if (!pdata) { |
| dev_err(&pdev->dev, |
| "failed to allocate musb platfrom data\n"); |
| ret = -ENOMEM; |
| goto err2; |
| } |
| |
| config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL); |
| if (!config) { |
| dev_err(&pdev->dev, |
| "failed to allocate musb hdrc config\n"); |
| goto err2; |
| } |
| |
| of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps); |
| of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits); |
| sprintf(res_name, "port%d-mode", id); |
| of_property_read_u32(np, res_name, (u32 *)&pdata->mode); |
| of_property_read_u32(np, "power", (u32 *)&pdata->power); |
| config->multipoint = of_property_read_bool(np, "multipoint"); |
| |
| pdata->config = config; |
| } |
| |
| pdata->platform_ops = &dsps_ops; |
| |
| ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); |
| if (ret) { |
| dev_err(dev, "failed to add platform_data\n"); |
| goto err2; |
| } |
| |
| ret = platform_device_add(musb); |
| if (ret) { |
| dev_err(dev, "failed to register musb device\n"); |
| goto err2; |
| } |
| |
| return 0; |
| |
| err2: |
| platform_device_put(musb); |
| err0: |
| return ret; |
| } |
| |
| static int __devinit dsps_probe(struct platform_device *pdev) |
| { |
| struct device_node *np = pdev->dev.of_node; |
| const struct of_device_id *match; |
| const struct dsps_musb_wrapper *wrp; |
| struct dsps_glue *glue; |
| struct resource *iomem; |
| int ret, i; |
| |
| match = of_match_node(musb_dsps_of_match, np); |
| if (!match) { |
| dev_err(&pdev->dev, "fail to get matching of_match struct\n"); |
| ret = -EINVAL; |
| goto err0; |
| } |
| wrp = match->data; |
| |
| /* allocate glue */ |
| glue = kzalloc(sizeof(*glue), GFP_KERNEL); |
| if (!glue) { |
| dev_err(&pdev->dev, "unable to allocate glue memory\n"); |
| ret = -ENOMEM; |
| goto err0; |
| } |
| |
| /* get memory resource */ |
| iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| if (!iomem) { |
| dev_err(&pdev->dev, "failed to get usbss mem resourse\n"); |
| ret = -ENODEV; |
| goto err1; |
| } |
| |
| glue->dev = &pdev->dev; |
| |
| glue->wrp = kmemdup(wrp, sizeof(*wrp), GFP_KERNEL); |
| if (!glue->wrp) { |
| dev_err(&pdev->dev, "failed to duplicate wrapper struct memory\n"); |
| ret = -ENOMEM; |
| goto err1; |
| } |
| platform_set_drvdata(pdev, glue); |
| |
| /* enable the usbss clocks */ |
| pm_runtime_enable(&pdev->dev); |
| |
| ret = pm_runtime_get_sync(&pdev->dev); |
| if (ret < 0) { |
| dev_err(&pdev->dev, "pm_runtime_get_sync FAILED"); |
| goto err2; |
| } |
| |
| /* create the child platform device for all instances of musb */ |
| for (i = 0; i < wrp->instances ; i++) { |
| ret = dsps_create_musb_pdev(glue, i); |
| if (ret != 0) { |
| dev_err(&pdev->dev, "failed to create child pdev\n"); |
| /* release resources of previously created instances */ |
| for (i--; i >= 0 ; i--) |
| platform_device_unregister(glue->musb[i]); |
| goto err3; |
| } |
| } |
| |
| return 0; |
| |
| err3: |
| pm_runtime_put(&pdev->dev); |
| err2: |
| pm_runtime_disable(&pdev->dev); |
| kfree(glue->wrp); |
| err1: |
| kfree(glue); |
| err0: |
| return ret; |
| } |
| static int __devexit dsps_remove(struct platform_device *pdev) |
| { |
| struct dsps_glue *glue = platform_get_drvdata(pdev); |
| const struct dsps_musb_wrapper *wrp = glue->wrp; |
| int i; |
| |
| /* delete the child platform device */ |
| for (i = 0; i < wrp->instances ; i++) |
| platform_device_unregister(glue->musb[i]); |
| |
| /* disable usbss clocks */ |
| pm_runtime_put(&pdev->dev); |
| pm_runtime_disable(&pdev->dev); |
| kfree(glue->wrp); |
| kfree(glue); |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM_SLEEP |
| static int dsps_suspend(struct device *dev) |
| { |
| return 0; |
| } |
| |
| static int dsps_resume(struct device *dev) |
| { |
| return 0; |
| } |
| #endif |
| |
| static SIMPLE_DEV_PM_OPS(dsps_pm_ops, dsps_suspend, dsps_resume); |
| |
| static const struct dsps_musb_wrapper ti81xx_driver_data __devinitconst = { |
| .revision = 0x00, |
| .control = 0x14, |
| .status = 0x18, |
| .eoi = 0x24, |
| .epintr_set = 0x38, |
| .epintr_clear = 0x40, |
| .epintr_status = 0x30, |
| .coreintr_set = 0x3c, |
| .coreintr_clear = 0x44, |
| .coreintr_status = 0x34, |
| .phy_utmi = 0xe0, |
| .mode = 0xe8, |
| .reset = 0, |
| .otg_disable = 21, |
| .iddig = 8, |
| .usb_shift = 0, |
| .usb_mask = 0x1ff, |
| .usb_bitmap = (0x1ff << 0), |
| .drvvbus = 8, |
| .txep_shift = 0, |
| .txep_mask = 0xffff, |
| .txep_bitmap = (0xffff << 0), |
| .rxep_shift = 16, |
| .rxep_mask = 0xfffe, |
| .rxep_bitmap = (0xfffe << 16), |
| .musb_core_offset = 0x400, |
| .poll_seconds = 2, |
| .instances = 1, |
| }; |
| |
| static const struct platform_device_id musb_dsps_id_table[] __devinitconst = { |
| { |
| .name = "musb-ti81xx", |
| .driver_data = (kernel_ulong_t) &ti81xx_driver_data, |
| }, |
| { }, /* Terminating Entry */ |
| }; |
| MODULE_DEVICE_TABLE(platform, musb_dsps_id_table); |
| |
| #ifdef CONFIG_OF |
| static const struct of_device_id musb_dsps_of_match[] __devinitconst = { |
| { .compatible = "ti,musb-am33xx", |
| .data = (void *) &ti81xx_driver_data, }, |
| { }, |
| }; |
| MODULE_DEVICE_TABLE(of, musb_dsps_of_match); |
| #endif |
| |
| static struct platform_driver dsps_usbss_driver = { |
| .probe = dsps_probe, |
| .remove = __devexit_p(dsps_remove), |
| .driver = { |
| .name = "musb-dsps", |
| .pm = &dsps_pm_ops, |
| .of_match_table = of_match_ptr(musb_dsps_of_match), |
| }, |
| .id_table = musb_dsps_id_table, |
| }; |
| |
| MODULE_DESCRIPTION("TI DSPS MUSB Glue Layer"); |
| MODULE_AUTHOR("Ravi B <ravibabu@ti.com>"); |
| MODULE_AUTHOR("Ajay Kumar Gupta <ajay.gupta@ti.com>"); |
| MODULE_LICENSE("GPL v2"); |
| |
| static int __init dsps_init(void) |
| { |
| return platform_driver_register(&dsps_usbss_driver); |
| } |
| subsys_initcall(dsps_init); |
| |
| static void __exit dsps_exit(void) |
| { |
| platform_driver_unregister(&dsps_usbss_driver); |
| } |
| module_exit(dsps_exit); |