diff options
Diffstat (limited to 'drivers/usb/musb')
| -rw-r--r-- | drivers/usb/musb/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/usb/musb/am35x.c | 14 | ||||
| -rw-r--r-- | drivers/usb/musb/blackfin.c | 14 | ||||
| -rw-r--r-- | drivers/usb/musb/da8xx.c | 16 | ||||
| -rw-r--r-- | drivers/usb/musb/davinci.c | 8 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_am335x.c | 23 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 55 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_core.h | 9 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_cppi41.c | 71 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_dsps.c | 97 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_host.c | 33 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_virthub.c | 26 | ||||
| -rw-r--r-- | drivers/usb/musb/omap2430.c | 12 | ||||
| -rw-r--r-- | drivers/usb/musb/tusb6010.c | 28 | ||||
| -rw-r--r-- | drivers/usb/musb/tusb6010.h | 8 | ||||
| -rw-r--r-- | drivers/usb/musb/tusb6010_omap.c | 2 | ||||
| -rw-r--r-- | drivers/usb/musb/ux500.c | 1 |
17 files changed, 331 insertions, 93 deletions
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 688dc8bb192..06cc5d6ea68 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -43,6 +43,7 @@ config USB_MUSB_HOST config USB_MUSB_GADGET bool "Gadget only mode" depends on USB_GADGET=y || USB_GADGET=USB_MUSB_HDRC + depends on HAS_DMA help Select this when you want to use MUSB in gadget mode only, thereby the host feature will be regressed. @@ -50,6 +51,7 @@ config USB_MUSB_GADGET config USB_MUSB_DUAL_ROLE bool "Dual Role mode" depends on ((USB=y || USB=USB_MUSB_HDRC) && (USB_GADGET=y || USB_GADGET=USB_MUSB_HDRC)) + depends on HAS_DMA help This is the default mode of working of MUSB controller where both host and gadget features are enabled. @@ -74,7 +76,7 @@ config USB_MUSB_TUSB6010 config USB_MUSB_OMAP2PLUS tristate "OMAP2430 and onwards" - depends on ARCH_OMAP2PLUS + depends on ARCH_OMAP2PLUS && USB select GENERIC_PHY config USB_MUSB_AM35X @@ -139,10 +141,11 @@ config USB_TI_CPPI_DMA config USB_TI_CPPI41_DMA bool 'TI CPPI 4.1 (AM335x)' depends on ARCH_OMAP + select TI_CPPI41 config USB_TUSB_OMAP_DMA bool 'TUSB 6010' - depends on USB_MUSB_TUSB6010 + depends on USB_MUSB_TUSB6010 = USB_MUSB_HDRC # both built-in or both modules depends on ARCH_OMAP help Enable DMA transfers on TUSB 6010 when OMAP DMA is available. diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index b3aa0184af9..0a34dd85955 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -32,7 +32,7 @@ #include <linux/io.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> -#include <linux/usb/usb_phy_gen_xceiv.h> +#include <linux/usb/usb_phy_generic.h> #include <linux/platform_data/usb-omap.h> #include "musb_core.h" @@ -85,6 +85,7 @@ struct am35x_glue { struct device *dev; struct platform_device *musb; + struct platform_device *phy; struct clk *phy_clk; struct clk *clk; }; @@ -360,7 +361,6 @@ static int am35x_musb_init(struct musb *musb) if (!rev) return -ENODEV; - usb_nop_xceiv_register(); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) return -EPROBE_DEFER; @@ -402,7 +402,6 @@ static int am35x_musb_exit(struct musb *musb) data->set_phy_power(0); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); return 0; } @@ -505,6 +504,9 @@ static int am35x_probe(struct platform_device *pdev) pdata->platform_ops = &am35x_ops; + glue->phy = usb_phy_generic_register(); + if (IS_ERR(glue->phy)) + goto err7; platform_set_drvdata(pdev, glue); pinfo = am35x_dev_info; @@ -518,11 +520,14 @@ static int am35x_probe(struct platform_device *pdev) if (IS_ERR(musb)) { ret = PTR_ERR(musb); dev_err(&pdev->dev, "failed to register musb device: %d\n", ret); - goto err7; + goto err8; } return 0; +err8: + usb_phy_generic_unregister(glue->phy); + err7: clk_disable(clk); @@ -547,6 +552,7 @@ static int am35x_remove(struct platform_device *pdev) struct am35x_glue *glue = platform_get_drvdata(pdev); platform_device_unregister(glue->musb); + usb_phy_generic_unregister(glue->phy); clk_disable(glue->clk); clk_disable(glue->phy_clk); clk_put(glue->clk); diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index 796677fa9a1..d40d5f0b552 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -18,7 +18,7 @@ #include <linux/platform_device.h> #include <linux/dma-mapping.h> #include <linux/prefetch.h> -#include <linux/usb/usb_phy_gen_xceiv.h> +#include <linux/usb/usb_phy_generic.h> #include <asm/cacheflush.h> @@ -29,6 +29,7 @@ struct bfin_glue { struct device *dev; struct platform_device *musb; + struct platform_device *phy; }; #define glue_to_musb(g) platform_get_drvdata(g->musb) @@ -401,7 +402,6 @@ static int bfin_musb_init(struct musb *musb) } gpio_direction_output(musb->config->gpio_vrsel, 0); - usb_nop_xceiv_register(); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) { gpio_free(musb->config->gpio_vrsel); @@ -424,9 +424,8 @@ static int bfin_musb_init(struct musb *musb) static int bfin_musb_exit(struct musb *musb) { gpio_free(musb->config->gpio_vrsel); - usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + return 0; } @@ -477,6 +476,9 @@ static int bfin_probe(struct platform_device *pdev) pdata->platform_ops = &bfin_ops; + glue->phy = usb_phy_generic_register(); + if (IS_ERR(glue->phy)) + goto err2; platform_set_drvdata(pdev, glue); memset(musb_resources, 0x00, sizeof(*musb_resources) * @@ -514,6 +516,9 @@ static int bfin_probe(struct platform_device *pdev) return 0; err3: + usb_phy_generic_unregister(glue->phy); + +err2: platform_device_put(musb); err1: @@ -528,6 +533,7 @@ static int bfin_remove(struct platform_device *pdev) struct bfin_glue *glue = platform_get_drvdata(pdev); platform_device_unregister(glue->musb); + usb_phy_generic_unregister(glue->phy); kfree(glue); return 0; diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index e3486de7199..058775e647a 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -32,7 +32,7 @@ #include <linux/io.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> -#include <linux/usb/usb_phy_gen_xceiv.h> +#include <linux/usb/usb_phy_generic.h> #include <mach/da8xx.h> #include <linux/platform_data/usb-davinci.h> @@ -85,6 +85,7 @@ struct da8xx_glue { struct device *dev; struct platform_device *musb; + struct platform_device *phy; struct clk *clk; }; @@ -418,7 +419,6 @@ static int da8xx_musb_init(struct musb *musb) if (!rev) goto fail; - usb_nop_xceiv_register(); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) { ret = -EPROBE_DEFER; @@ -453,7 +453,6 @@ static int da8xx_musb_exit(struct musb *musb) phy_off(); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); return 0; } @@ -512,6 +511,11 @@ static int da8xx_probe(struct platform_device *pdev) pdata->platform_ops = &da8xx_ops; + glue->phy = usb_phy_generic_register(); + if (IS_ERR(glue->phy)) { + ret = PTR_ERR(glue->phy); + goto err5; + } platform_set_drvdata(pdev, glue); memset(musb_resources, 0x00, sizeof(*musb_resources) * @@ -538,11 +542,14 @@ static int da8xx_probe(struct platform_device *pdev) if (IS_ERR(musb)) { ret = PTR_ERR(musb); dev_err(&pdev->dev, "failed to register musb device: %d\n", ret); - goto err5; + goto err6; } return 0; +err6: + usb_phy_generic_unregister(glue->phy); + err5: clk_disable(clk); @@ -561,6 +568,7 @@ static int da8xx_remove(struct platform_device *pdev) struct da8xx_glue *glue = platform_get_drvdata(pdev); platform_device_unregister(glue->musb); + usb_phy_generic_unregister(glue->phy); clk_disable(glue->clk); clk_put(glue->clk); kfree(glue); diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index c259dac9d05..de8492b06e4 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -32,7 +32,7 @@ #include <linux/gpio.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> -#include <linux/usb/usb_phy_gen_xceiv.h> +#include <linux/usb/usb_phy_generic.h> #include <mach/cputype.h> #include <mach/hardware.h> @@ -381,7 +381,6 @@ static int davinci_musb_init(struct musb *musb) u32 revision; int ret = -ENODEV; - usb_nop_xceiv_register(); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) { ret = -EPROBE_DEFER; @@ -439,7 +438,7 @@ static int davinci_musb_init(struct musb *musb) fail: usb_put_phy(musb->xceiv); unregister: - usb_nop_xceiv_unregister(); + usb_phy_generic_unregister(); return ret; } @@ -487,7 +486,6 @@ static int davinci_musb_exit(struct musb *musb) phy_off(); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); return 0; } @@ -545,6 +543,7 @@ static int davinci_probe(struct platform_device *pdev) pdata->platform_ops = &davinci_ops; + usb_phy_generic_register(); platform_set_drvdata(pdev, glue); memset(musb_resources, 0x00, sizeof(*musb_resources) * @@ -603,6 +602,7 @@ static int davinci_remove(struct platform_device *pdev) struct davinci_glue *glue = platform_get_drvdata(pdev); platform_device_unregister(glue->musb); + usb_phy_generic_unregister(); clk_disable(glue->clk); clk_put(glue->clk); kfree(glue); diff --git a/drivers/usb/musb/musb_am335x.c b/drivers/usb/musb/musb_am335x.c index d2353781bd2..1e58ed2361c 100644 --- a/drivers/usb/musb/musb_am335x.c +++ b/drivers/usb/musb/musb_am335x.c @@ -19,21 +19,6 @@ err: return ret; } -static int of_remove_populated_child(struct device *dev, void *d) -{ - struct platform_device *pdev = to_platform_device(dev); - - of_device_unregister(pdev); - return 0; -} - -static int am335x_child_remove(struct platform_device *pdev) -{ - device_for_each_child(&pdev->dev, NULL, of_remove_populated_child); - pm_runtime_disable(&pdev->dev); - return 0; -} - static const struct of_device_id am335x_child_of_match[] = { { .compatible = "ti,am33xx-usb" }, { }, @@ -42,13 +27,17 @@ MODULE_DEVICE_TABLE(of, am335x_child_of_match); static struct platform_driver am335x_child_driver = { .probe = am335x_child_probe, - .remove = am335x_child_remove, .driver = { .name = "am335x-usb-childs", .of_match_table = am335x_child_of_match, }, }; -module_platform_driver(am335x_child_driver); +static int __init am335x_child_init(void) +{ + return platform_driver_register(&am335x_child_driver); +} +module_init(am335x_child_init); + MODULE_DESCRIPTION("AM33xx child devices"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index fc192ad9cc6..eff3c5cf84f 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -438,7 +438,6 @@ void musb_hnp_stop(struct musb *musb) static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, u8 devctl) { - struct usb_otg *otg = musb->xceiv->otg; irqreturn_t handled = IRQ_NONE; dev_dbg(musb->controller, "<== DevCtl=%02x, int_usb=0x%x\n", devctl, @@ -477,8 +476,11 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, musb->port1_status |= (USB_PORT_STAT_C_SUSPEND << 16) | MUSB_PORT_STAT_RESUME; + musb->rh_timer = jiffies + + msecs_to_jiffies(20); schedule_delayed_work( - &musb->finish_resume_work, 20); + &musb->finish_resume_work, + msecs_to_jiffies(20)); musb->xceiv->state = OTG_STATE_A_HOST; musb->is_active = 1; @@ -653,7 +655,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, break; case OTG_STATE_B_PERIPHERAL: musb_g_suspend(musb); - musb->is_active = otg->gadget->b_hnp_enable; + musb->is_active = musb->g.b_hnp_enable; if (musb->is_active) { musb->xceiv->state = OTG_STATE_B_WAIT_ACON; dev_dbg(musb->controller, "HNP: Setting timer for b_ase0_brst\n"); @@ -669,7 +671,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, break; case OTG_STATE_A_HOST: musb->xceiv->state = OTG_STATE_A_SUSPEND; - musb->is_active = otg->host->b_hnp_enable; + musb->is_active = musb->hcd->self.b_hnp_enable; break; case OTG_STATE_B_HOST: /* Transition to B_PERIPHERAL, see 6.8.2.6 p 44 */ @@ -846,6 +848,10 @@ b_host: } } + /* handle babble condition */ + if (int_usb & MUSB_INTR_BABBLE && is_host_active(musb)) + schedule_work(&musb->recover_work); + #if 0 /* REVISIT ... this would be for multiplexing periodic endpoints, or * supporting transfer phasing to prevent exceeding ISO bandwidth @@ -1744,6 +1750,34 @@ static void musb_irq_work(struct work_struct *data) } } +/* Recover from babble interrupt conditions */ +static void musb_recover_work(struct work_struct *data) +{ + struct musb *musb = container_of(data, struct musb, recover_work); + int status; + + musb_platform_reset(musb); + + usb_phy_vbus_off(musb->xceiv); + udelay(100); + + usb_phy_vbus_on(musb->xceiv); + udelay(100); + + /* + * When a babble condition occurs, the musb controller removes the + * session bit and the endpoint config is lost. + */ + if (musb->dyn_fifo) + status = ep_config_from_table(musb); + else + status = ep_config_from_hw(musb); + + /* start the session again */ + if (status == 0) + musb_start(musb); +} + /* -------------------------------------------------------------------------- * Init support */ @@ -1911,6 +1945,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) /* Init IRQ workqueue before request_irq */ INIT_WORK(&musb->irq_work, musb_irq_work); + INIT_WORK(&musb->recover_work, musb_recover_work); INIT_DELAYED_WORK(&musb->deassert_reset_work, musb_deassert_reset); INIT_DELAYED_WORK(&musb->finish_resume_work, musb_host_finish_resume); @@ -2006,6 +2041,7 @@ fail4: fail3: cancel_work_sync(&musb->irq_work); + cancel_work_sync(&musb->recover_work); cancel_delayed_work_sync(&musb->finish_resume_work); cancel_delayed_work_sync(&musb->deassert_reset_work); if (musb->dma_controller) @@ -2071,6 +2107,7 @@ static int musb_remove(struct platform_device *pdev) dma_controller_destroy(musb->dma_controller); cancel_work_sync(&musb->irq_work); + cancel_work_sync(&musb->recover_work); cancel_delayed_work_sync(&musb->finish_resume_work); cancel_delayed_work_sync(&musb->deassert_reset_work); musb_free(musb); @@ -2157,11 +2194,19 @@ static void musb_restore_context(struct musb *musb) void __iomem *musb_base = musb->mregs; void __iomem *ep_target_regs; void __iomem *epio; + u8 power; musb_writew(musb_base, MUSB_FRAME, musb->context.frame); musb_writeb(musb_base, MUSB_TESTMODE, musb->context.testmode); musb_write_ulpi_buscontrol(musb->mregs, musb->context.busctl); - musb_writeb(musb_base, MUSB_POWER, musb->context.power); + + /* Don't affect SUSPENDM/RESUME bits in POWER reg */ + power = musb_readb(musb_base, MUSB_POWER); + power &= MUSB_POWER_SUSPENDM | MUSB_POWER_RESUME; + musb->context.power &= ~(MUSB_POWER_SUSPENDM | MUSB_POWER_RESUME); + power |= musb->context.power; + musb_writeb(musb_base, MUSB_POWER, power); + musb_writew(musb_base, MUSB_INTRTXE, musb->intrtxe); musb_writew(musb_base, MUSB_INTRRXE, musb->intrrxe); musb_writeb(musb_base, MUSB_INTRUSBE, musb->context.intrusbe); diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 7083e82776f..d155a156f24 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -192,6 +192,7 @@ struct musb_platform_ops { int (*set_mode)(struct musb *musb, u8 mode); void (*try_idle)(struct musb *musb, unsigned long timeout); + void (*reset)(struct musb *musb); int (*vbus_status)(struct musb *musb); void (*set_vbus)(struct musb *musb, int on); @@ -296,6 +297,7 @@ struct musb { irqreturn_t (*isr)(int, void *); struct work_struct irq_work; + struct work_struct recover_work; struct delayed_work deassert_reset_work; struct delayed_work finish_resume_work; u16 hwvers; @@ -337,6 +339,7 @@ struct musb { dma_addr_t async; dma_addr_t sync; void __iomem *sync_va; + u8 tusb_revision; #endif /* passed down from chip/board specific irq handlers */ @@ -552,6 +555,12 @@ static inline void musb_platform_try_idle(struct musb *musb, musb->ops->try_idle(musb, timeout); } +static inline void musb_platform_reset(struct musb *musb) +{ + if (musb->ops->reset) + musb->ops->reset(musb); +} + static inline int musb_platform_get_vbus_status(struct musb *musb) { if (!musb->ops->vbus_status) diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c index f88929609ba..5341bb223b7 100644 --- a/drivers/usb/musb/musb_cppi41.c +++ b/drivers/usb/musb/musb_cppi41.c @@ -39,6 +39,7 @@ struct cppi41_dma_channel { u32 transferred; u32 packet_sz; struct list_head tx_check; + struct work_struct dma_completion; }; #define MUSB_DMA_NUM_CHANNELS 15 @@ -112,6 +113,18 @@ static bool musb_is_tx_fifo_empty(struct musb_hw_ep *hw_ep) return true; } +static bool is_isoc(struct musb_hw_ep *hw_ep, bool in) +{ + if (in && hw_ep->in_qh) { + if (hw_ep->in_qh->type == USB_ENDPOINT_XFER_ISOC) + return true; + } else if (hw_ep->out_qh) { + if (hw_ep->out_qh->type == USB_ENDPOINT_XFER_ISOC) + return true; + } + return false; +} + static void cppi41_dma_callback(void *private_data); static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel) @@ -119,7 +132,8 @@ static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel) struct musb_hw_ep *hw_ep = cppi41_channel->hw_ep; struct musb *musb = hw_ep->musb; - if (!cppi41_channel->prog_len) { + if (!cppi41_channel->prog_len || + (cppi41_channel->channel.status == MUSB_DMA_STATUS_FREE)) { /* done, complete */ cppi41_channel->channel.actual_len = @@ -165,6 +179,32 @@ static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel) } } +static void cppi_trans_done_work(struct work_struct *work) +{ + unsigned long flags; + struct cppi41_dma_channel *cppi41_channel = + container_of(work, struct cppi41_dma_channel, dma_completion); + struct cppi41_dma_controller *controller = cppi41_channel->controller; + struct musb *musb = controller->musb; + struct musb_hw_ep *hw_ep = cppi41_channel->hw_ep; + bool empty; + + if (!cppi41_channel->is_tx && is_isoc(hw_ep, 1)) { + spin_lock_irqsave(&musb->lock, flags); + cppi41_trans_done(cppi41_channel); + spin_unlock_irqrestore(&musb->lock, flags); + } else { + empty = musb_is_tx_fifo_empty(hw_ep); + if (empty) { + spin_lock_irqsave(&musb->lock, flags); + cppi41_trans_done(cppi41_channel); + spin_unlock_irqrestore(&musb->lock, flags); + } else { + schedule_work(&cppi41_channel->dma_completion); + } + } +} + static enum hrtimer_restart cppi41_recheck_tx_req(struct hrtimer *timer) { struct cppi41_dma_controller *controller; @@ -228,6 +268,14 @@ static void cppi41_dma_callback(void *private_data) transferred < cppi41_channel->packet_sz) cppi41_channel->prog_len = 0; + if (!cppi41_channel->is_tx) { + if (is_isoc(hw_ep, 1)) + schedule_work(&cppi41_channel->dma_completion); + else + cppi41_trans_done(cppi41_channel); + goto out; + } + empty = musb_is_tx_fifo_empty(hw_ep); if (empty) { cppi41_trans_done(cppi41_channel); @@ -264,9 +312,13 @@ static void cppi41_dma_callback(void *private_data) goto out; } } + if (is_isoc(hw_ep, 0)) { + schedule_work(&cppi41_channel->dma_completion); + goto out; + } list_add_tail(&cppi41_channel->tx_check, &controller->early_tx_list); - if (!hrtimer_active(&controller->early_tx)) { + if (!hrtimer_is_queued(&controller->early_tx)) { hrtimer_start_range_ns(&controller->early_tx, ktime_set(0, 140 * NSEC_PER_USEC), 40 * NSEC_PER_USEC, @@ -448,12 +500,25 @@ static int cppi41_dma_channel_program(struct dma_channel *channel, dma_addr_t dma_addr, u32 len) { int ret; + struct cppi41_dma_channel *cppi41_channel = channel->private_data; + int hb_mult = 0; BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN || channel->status == MUSB_DMA_STATUS_BUSY); + if (is_host_active(cppi41_channel->controller->musb)) { + if (cppi41_channel->is_tx) + hb_mult = cppi41_channel->hw_ep->out_qh->hb_mult; + else + hb_mult = cppi41_channel->hw_ep->in_qh->hb_mult; + } + channel->status = MUSB_DMA_STATUS_BUSY; channel->actual_len = 0; + + if (hb_mult) + packet_sz = hb_mult * (packet_sz & 0x7FF); + ret = cppi41_configure_channel(channel, packet_sz, mode, dma_addr, len); if (!ret) channel->status = MUSB_DMA_STATUS_FREE; @@ -607,6 +672,8 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller) cppi41_channel->port_num = port; cppi41_channel->is_tx = is_tx; INIT_LIST_HEAD(&cppi41_channel->tx_check); + INIT_WORK(&cppi41_channel->dma_completion, + cppi_trans_done_work); musb_dma = &cppi41_channel->channel; musb_dma->private_data = cppi41_channel; diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 7a109eae9b9..09529f94e72 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -35,7 +35,7 @@ #include <linux/dma-mapping.h> #include <linux/pm_runtime.h> #include <linux/module.h> -#include <linux/usb/usb_phy_gen_xceiv.h> +#include <linux/usb/usb_phy_generic.h> #include <linux/platform_data/usb-omap.h> #include <linux/sizes.h> @@ -45,6 +45,8 @@ #include <linux/of_irq.h> #include <linux/usb/of.h> +#include <linux/debugfs.h> + #include "musb_core.h" static const struct of_device_id musb_dsps_of_match[]; @@ -136,6 +138,26 @@ struct dsps_glue { unsigned long last_timer; /* last timer data for each instance */ struct dsps_context context; + struct debugfs_regset32 regset; + struct dentry *dbgfs_root; +}; + +static const struct debugfs_reg32 dsps_musb_regs[] = { + { "revision", 0x00 }, + { "control", 0x14 }, + { "status", 0x18 }, + { "eoi", 0x24 }, + { "intr0_stat", 0x30 }, + { "intr1_stat", 0x34 }, + { "intr0_set", 0x38 }, + { "intr1_set", 0x3c }, + { "txmode", 0x70 }, + { "rxmode", 0x74 }, + { "autoreq", 0xd0 }, + { "srpfixtime", 0xd4 }, + { "tdown", 0xd8 }, + { "phy_utmi", 0xe0 }, + { "mode", 0xe8 }, }; static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout) @@ -307,9 +329,21 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) * value but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set. * Also, DRVVBUS pulses for SRP (but not at 5V) ... */ - if (is_host_active(musb) && usbintr & MUSB_INTR_BABBLE) + if (is_host_active(musb) && usbintr & MUSB_INTR_BABBLE) { pr_info("CAUTION: musb: Babble Interrupt Occurred\n"); + /* + * When a babble condition occurs, the musb controller removes + * the session and is no longer in host mode. Hence, all + * devices connected to its root hub get disconnected. + * + * Hand this error down to the musb core isr, so it can + * recover. + */ + musb->int_usb = MUSB_INTR_BABBLE | MUSB_INTR_DISCONNECT; + musb->int_tx = musb->int_rx = 0; + } + if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) { int drvvbus = dsps_readl(reg_base, wrp->status); void __iomem *mregs = musb->mregs; @@ -368,6 +402,30 @@ out: return ret; } +static int dsps_musb_dbg_init(struct musb *musb, struct dsps_glue *glue) +{ + struct dentry *root; + struct dentry *file; + char buf[128]; + + sprintf(buf, "%s.dsps", dev_name(musb->controller)); + root = debugfs_create_dir(buf, NULL); + if (!root) + return -ENOMEM; + glue->dbgfs_root = root; + + glue->regset.regs = dsps_musb_regs; + glue->regset.nregs = ARRAY_SIZE(dsps_musb_regs); + glue->regset.base = musb->ctrl_base; + + file = debugfs_create_regset32("regdump", S_IRUGO, root, &glue->regset); + if (!file) { + debugfs_remove_recursive(root); + return -ENOMEM; + } + return 0; +} + static int dsps_musb_init(struct musb *musb) { struct device *dev = musb->controller; @@ -377,6 +435,7 @@ static int dsps_musb_init(struct musb *musb) void __iomem *reg_base; struct resource *r; u32 rev, val; + int ret; r = platform_get_resource_byname(parent, IORESOURCE_MEM, "control"); if (!r) @@ -410,6 +469,10 @@ static int dsps_musb_init(struct musb *musb) val &= ~(1 << wrp->otg_disable); dsps_writel(musb->ctrl_base, wrp->phy_utmi, val); + ret = dsps_musb_dbg_init(musb, glue); + if (ret) + return ret; + return 0; } @@ -419,8 +482,9 @@ static int dsps_musb_exit(struct musb *musb) struct dsps_glue *glue = dev_get_drvdata(dev->parent); del_timer_sync(&glue->timer); - usb_phy_shutdown(musb->xceiv); + debugfs_remove_recursive(glue->dbgfs_root); + return 0; } @@ -430,10 +494,9 @@ static int dsps_musb_set_mode(struct musb *musb, u8 mode) struct dsps_glue *glue = dev_get_drvdata(dev->parent); const struct dsps_musb_wrapper *wrp = glue->wrp; void __iomem *ctrl_base = musb->ctrl_base; - void __iomem *base = musb->mregs; u32 reg; - reg = dsps_readl(base, wrp->mode); + reg = dsps_readl(ctrl_base, wrp->mode); switch (mode) { case MUSB_HOST: @@ -446,7 +509,7 @@ static int dsps_musb_set_mode(struct musb *musb, u8 mode) */ reg |= (1 << wrp->iddig_mux); - dsps_writel(base, wrp->mode, reg); + dsps_writel(ctrl_base, wrp->mode, reg); dsps_writel(ctrl_base, wrp->phy_utmi, 0x02); break; case MUSB_PERIPHERAL: @@ -459,10 +522,10 @@ static int dsps_musb_set_mode(struct musb *musb, u8 mode) */ reg |= (1 << wrp->iddig_mux); - dsps_writel(base, wrp->mode, reg); + dsps_writel(ctrl_base, wrp->mode, reg); break; case MUSB_OTG: - dsps_writel(base, wrp->phy_utmi, 0x02); + dsps_writel(ctrl_base, wrp->phy_utmi, 0x02); break; default: dev_err(glue->dev, "unsupported mode %d\n", mode); @@ -472,6 +535,16 @@ static int dsps_musb_set_mode(struct musb *musb, u8 mode) return 0; } +static void dsps_musb_reset(struct musb *musb) +{ + struct device *dev = musb->controller; + struct dsps_glue *glue = dev_get_drvdata(dev->parent); + const struct dsps_musb_wrapper *wrp = glue->wrp; + + dsps_writel(musb->ctrl_base, wrp->control, (1 << wrp->reset)); + udelay(100); +} + static struct musb_platform_ops dsps_ops = { .init = dsps_musb_init, .exit = dsps_musb_exit, @@ -481,6 +554,7 @@ static struct musb_platform_ops dsps_ops = { .try_idle = dsps_musb_try_idle, .set_mode = dsps_musb_set_mode, + .reset = dsps_musb_reset, }; static u64 musb_dmamask = DMA_BIT_MASK(32); @@ -616,7 +690,7 @@ static int dsps_probe(struct platform_device *pdev) wrp = match->data; /* allocate glue */ - glue = kzalloc(sizeof(*glue), GFP_KERNEL); + glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL); if (!glue) { dev_err(&pdev->dev, "unable to allocate glue memory\n"); return -ENOMEM; @@ -644,7 +718,6 @@ err3: pm_runtime_put(&pdev->dev); err2: pm_runtime_disable(&pdev->dev); - kfree(glue); return ret; } @@ -657,7 +730,7 @@ static int dsps_remove(struct platform_device *pdev) /* disable usbss clocks */ pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); - kfree(glue); + return 0; } @@ -699,7 +772,7 @@ static const struct of_device_id musb_dsps_of_match[] = { }; MODULE_DEVICE_TABLE(of, musb_dsps_of_match); -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int dsps_suspend(struct device *dev) { struct dsps_glue *glue = dev_get_drvdata(dev); diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index ed455724017..eb06291a40c 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -1183,6 +1183,9 @@ irqreturn_t musb_h_ep0_irq(struct musb *musb) csr = MUSB_CSR0_H_STATUSPKT | MUSB_CSR0_TXPKTRDY; + /* disable ping token in status phase */ + csr |= MUSB_CSR0_H_DIS_PING; + /* flag status stage */ musb->ep0_stage = MUSB_EP0_STATUS; @@ -1691,7 +1694,8 @@ void musb_host_rx(struct musb *musb, u8 epnum) | MUSB_RXCSR_RXPKTRDY); musb_writew(hw_ep->regs, MUSB_RXCSR, val); -#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) +#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \ + defined(CONFIG_USB_TI_CPPI41_DMA) if (usb_pipeisoc(pipe)) { struct usb_iso_packet_descriptor *d; @@ -1704,10 +1708,30 @@ void musb_host_rx(struct musb *musb, u8 epnum) if (d->status != -EILSEQ && d->status != -EOVERFLOW) d->status = 0; - if (++qh->iso_idx >= urb->number_of_packets) + if (++qh->iso_idx >= urb->number_of_packets) { done = true; - else + } else { +#if defined(CONFIG_USB_TI_CPPI41_DMA) + struct dma_controller *c; + dma_addr_t *buf; + u32 length, ret; + + c = musb->dma_controller; + buf = (void *) + urb->iso_frame_desc[qh->iso_idx].offset + + (u32)urb->transfer_dma; + + length = + urb->iso_frame_desc[qh->iso_idx].length; + + val |= MUSB_RXCSR_DMAENAB; + musb_writew(hw_ep->regs, MUSB_RXCSR, val); + + ret = c->channel_program(dma, qh->maxpacket, + 0, (u32) buf, length); +#endif done = false; + } } else { /* done if urb buffer is full or short packet is recd */ @@ -1747,7 +1771,8 @@ void musb_host_rx(struct musb *musb, u8 epnum) } /* we are expecting IN packets */ -#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) +#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \ + defined(CONFIG_USB_TI_CPPI41_DMA) if (dma) { struct dma_controller *c; u16 rx_count; diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index eb634433ef0..e2d2d8c9891 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -135,7 +135,8 @@ void musb_port_suspend(struct musb *musb, bool do_suspend) /* later, GetPortStatus will stop RESUME signaling */ musb->port1_status |= MUSB_PORT_STAT_RESUME; - schedule_delayed_work(&musb->finish_resume_work, 20); + schedule_delayed_work(&musb->finish_resume_work, + msecs_to_jiffies(20)); } } @@ -158,7 +159,6 @@ void musb_port_reset(struct musb *musb, bool do_reset) */ power = musb_readb(mbase, MUSB_POWER); if (do_reset) { - /* * If RESUME is set, we must make sure it stays minimum 20 ms. * Then we must clear RESUME and wait a bit to let musb start @@ -167,11 +167,22 @@ void musb_port_reset(struct musb *musb, bool do_reset) * detected". */ if (power & MUSB_POWER_RESUME) { - while (time_before(jiffies, musb->rh_timer)) - msleep(1); + long remain = (unsigned long) musb->rh_timer - jiffies; + + if (musb->rh_timer > 0 && remain > 0) { + /* take into account the minimum delay after resume */ + schedule_delayed_work( + &musb->deassert_reset_work, remain); + return; + } + musb_writeb(mbase, MUSB_POWER, - power & ~MUSB_POWER_RESUME); - msleep(1); + power & ~MUSB_POWER_RESUME); + + /* Give the core 1 ms to clear MUSB_POWER_RESUME */ + schedule_delayed_work(&musb->deassert_reset_work, + msecs_to_jiffies(1)); + return; } power &= 0xf0; @@ -180,7 +191,8 @@ void musb_port_reset(struct musb *musb, bool do_reset) musb->port1_status |= USB_PORT_STAT_RESET; musb->port1_status &= ~USB_PORT_STAT_ENABLE; - schedule_delayed_work(&musb->deassert_reset_work, 50); + schedule_delayed_work(&musb->deassert_reset_work, + msecs_to_jiffies(50)); } else { dev_dbg(musb->controller, "root port reset stopped\n"); musb_writeb(mbase, MUSB_POWER, diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 2a408cdaf7b..d369bf1f393 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -37,7 +37,7 @@ #include <linux/err.h> #include <linux/delay.h> #include <linux/usb/musb-omap.h> -#include <linux/usb/omap_control_usb.h> +#include <linux/phy/omap_control_phy.h> #include <linux/of_platform.h> #include "musb_core.h" @@ -316,7 +316,13 @@ static void omap_musb_mailbox_work(struct work_struct *mailbox_work) { struct omap2430_glue *glue = container_of(mailbox_work, struct omap2430_glue, omap_musb_mailbox_work); + struct musb *musb = glue_to_musb(glue); + struct device *dev = musb->controller; + + pm_runtime_get_sync(dev); omap_musb_set_mailbox(glue); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); } static irqreturn_t omap2430_musb_interrupt(int irq, void *__hci) @@ -416,6 +422,7 @@ static int omap2430_musb_init(struct musb *musb) omap_musb_set_mailbox(glue); phy_init(musb->phy); + phy_power_on(musb->phy); pm_runtime_put_noidle(musb->controller); return 0; @@ -478,6 +485,7 @@ static int omap2430_musb_exit(struct musb *musb) del_timer_sync(&musb_idle_timer); omap2430_low_level_exit(musb); + phy_power_off(musb->phy); phy_exit(musb->phy); return 0; @@ -659,7 +667,6 @@ static int omap2430_runtime_suspend(struct device *dev) OTG_INTERFSEL); omap2430_low_level_exit(musb); - phy_power_off(musb->phy); } return 0; @@ -674,7 +681,6 @@ static int omap2430_runtime_resume(struct device *dev) omap2430_low_level_init(musb); musb_writel(musb->mregs, OTG_INTERFSEL, musb->context.otg_interfsel); - phy_power_on(musb->phy); } return 0; diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 4e9fb1d0869..159ef4be1ef 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -24,13 +24,14 @@ #include <linux/io.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> -#include <linux/usb/usb_phy_gen_xceiv.h> +#include <linux/usb/usb_phy_generic.h> #include "musb_core.h" struct tusb6010_glue { struct device *dev; struct platform_device *musb; + struct platform_device *phy; }; static void tusb_musb_set_vbus(struct musb *musb, int is_on); @@ -42,7 +43,7 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on); * Checks the revision. We need to use the DMA register as 3.0 does not * have correct versions for TUSB_PRCM_REV or TUSB_INT_CTRL_REV. */ -u8 tusb_get_revision(struct musb *musb) +static u8 tusb_get_revision(struct musb *musb) { void __iomem *tbase = musb->ctrl_base; u32 die_id; @@ -58,14 +59,13 @@ u8 tusb_get_revision(struct musb *musb) return rev; } -EXPORT_SYMBOL_GPL(tusb_get_revision); -static int tusb_print_revision(struct musb *musb) +static void tusb_print_revision(struct musb *musb) { void __iomem *tbase = musb->ctrl_base; u8 rev; - rev = tusb_get_revision(musb); + rev = musb->tusb_revision; pr_info("tusb: %s%i.%i %s%i.%i %s%i.%i %s%i.%i %s%i %s%i.%i\n", "prcm", @@ -84,8 +84,6 @@ static int tusb_print_revision(struct musb *musb) TUSB_DIDR1_HI_CHIP_REV(musb_readl(tbase, TUSB_DIDR1_HI)), "rev", TUSB_REV_MAJOR(rev), TUSB_REV_MINOR(rev)); - - return tusb_get_revision(musb); } #define WBUS_QUIRK_MASK (TUSB_PHY_OTG_CTRL_TESTM2 | TUSB_PHY_OTG_CTRL_TESTM1 \ @@ -349,7 +347,7 @@ static void tusb_allow_idle(struct musb *musb, u32 wakeup_enables) u32 reg; if ((wakeup_enables & TUSB_PRCM_WBUS) - && (tusb_get_revision(musb) == TUSB_REV_30)) + && (musb->tusb_revision == TUSB_REV_30)) tusb_wbus_quirk(musb, 1); tusb_set_clock_source(musb, 0); @@ -797,7 +795,7 @@ static irqreturn_t tusb_musb_interrupt(int irq, void *__hci) u32 reg; u32 i; - if (tusb_get_revision(musb) == TUSB_REV_30) + if (musb->tusb_revision == TUSB_REV_30) tusb_wbus_quirk(musb, 0); /* there are issues re-locking the PLL on wakeup ... */ @@ -1011,10 +1009,11 @@ static int tusb_musb_start(struct musb *musb) goto err; } - ret = tusb_print_revision(musb); - if (ret < 2) { + musb->tusb_revision = tusb_get_revision(musb); + tusb_print_revision(musb); + if (musb->tusb_revision < 2) { printk(KERN_ERR "tusb: Unsupported TUSB6010 revision %i\n", - ret); + musb->tusb_revision); goto err; } @@ -1065,7 +1064,6 @@ static int tusb_musb_init(struct musb *musb) void __iomem *sync = NULL; int ret; - usb_nop_xceiv_register(); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) return -EPROBE_DEFER; @@ -1117,7 +1115,6 @@ done: iounmap(sync); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); } return ret; } @@ -1133,7 +1130,6 @@ static int tusb_musb_exit(struct musb *musb) iounmap(musb->sync_va); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); return 0; } @@ -1176,6 +1172,7 @@ static int tusb_probe(struct platform_device *pdev) pdata->platform_ops = &tusb_ops; + usb_phy_generic_register(); platform_set_drvdata(pdev, glue); memset(musb_resources, 0x00, sizeof(*musb_resources) * @@ -1224,6 +1221,7 @@ static int tusb_remove(struct platform_device *pdev) struct tusb6010_glue *glue = platform_get_drvdata(pdev); platform_device_unregister(glue->musb); + usb_phy_generic_unregister(glue->phy); kfree(glue); return 0; diff --git a/drivers/usb/musb/tusb6010.h b/drivers/usb/musb/tusb6010.h index 35c933a5d99..aec86c86ce3 100644 --- a/drivers/usb/musb/tusb6010.h +++ b/drivers/usb/musb/tusb6010.h @@ -12,14 +12,6 @@ #ifndef __TUSB6010_H__ #define __TUSB6010_H__ -extern u8 tusb_get_revision(struct musb *musb); - -#ifdef CONFIG_USB_TUSB6010 -#define musb_in_tusb() 1 -#else -#define musb_in_tusb() 0 -#endif - #ifdef CONFIG_USB_TUSB_OMAP_DMA #define tusb_dma_omap() 1 #else diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c index e33b6b2c44c..3ce152c0408 100644 --- a/drivers/usb/musb/tusb6010_omap.c +++ b/drivers/usb/musb/tusb6010_omap.c @@ -677,7 +677,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba tusb_dma->controller.channel_program = tusb_omap_dma_program; tusb_dma->controller.channel_abort = tusb_omap_dma_abort; - if (tusb_get_revision(musb) >= TUSB_REV_30) + if (musb->tusb_revision >= TUSB_REV_30) tusb_dma->multichannel = 1; for (i = 0; i < MAX_DMAREQ; i++) { diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c index c2e45e63272..f202e508846 100644 --- a/drivers/usb/musb/ux500.c +++ b/drivers/usb/musb/ux500.c @@ -274,7 +274,6 @@ static int ux500_probe(struct platform_device *pdev) musb->dev.parent = &pdev->dev; musb->dev.dma_mask = &pdev->dev.coherent_dma_mask; musb->dev.coherent_dma_mask = pdev->dev.coherent_dma_mask; - musb->dev.of_node = pdev->dev.of_node; glue->dev = &pdev->dev; glue->musb = musb; |
