diff options
Diffstat (limited to 'drivers/usb/musb/musb_core.c')
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 213 |
1 files changed, 82 insertions, 131 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index c9f9024c5515..07cf394e491b 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -99,19 +99,8 @@ #include <linux/platform_device.h> #include <linux/io.h> -#ifdef CONFIG_ARM -#include <mach/hardware.h> -#include <mach/memory.h> -#include <asm/mach-types.h> -#endif - #include "musb_core.h" - -#ifdef CONFIG_ARCH_DAVINCI -#include "davinci.h" -#endif - #define TA_WAIT_BCON(m) max_t(int, (m)->a_wait_bcon, OTG_TIME_A_WAIT_BCON) @@ -126,7 +115,7 @@ MODULE_PARM_DESC(debug, "Debug message level. Default = 0"); #define DRIVER_INFO DRIVER_DESC ", v" MUSB_VERSION -#define MUSB_DRIVER_NAME "musb_hdrc" +#define MUSB_DRIVER_NAME "musb-hdrc" const char musb_driver_name[] = MUSB_DRIVER_NAME; MODULE_DESCRIPTION(DRIVER_INFO); @@ -230,7 +219,7 @@ static struct otg_io_access_ops musb_ulpi_access = { /*-------------------------------------------------------------------------*/ -#if !defined(CONFIG_USB_TUSB6010) && !defined(CONFIG_BLACKFIN) +#if !defined(CONFIG_USB_MUSB_TUSB6010) && !defined(CONFIG_USB_MUSB_BLACKFIN) /* * Load an endpoint's FIFO @@ -390,7 +379,7 @@ void musb_otg_timer_func(unsigned long data) case OTG_STATE_A_SUSPEND: case OTG_STATE_A_WAIT_BCON: DBG(1, "HNP: %s timeout\n", otg_state_string(musb)); - musb_set_vbus(musb, 0); + musb_platform_set_vbus(musb, 0); musb->xceiv->state = OTG_STATE_A_WAIT_VFALL; break; default: @@ -552,7 +541,8 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, if (int_usb & MUSB_INTR_SESSREQ) { void __iomem *mbase = musb->mregs; - if (devctl & MUSB_DEVCTL_BDEVICE) { + if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS + && (devctl & MUSB_DEVCTL_BDEVICE)) { DBG(3, "SessReq while on B state\n"); return IRQ_HANDLED; } @@ -570,7 +560,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, musb->ep0_stage = MUSB_EP0_START; musb->xceiv->state = OTG_STATE_A_IDLE; MUSB_HST_MODE(musb); - musb_set_vbus(musb, 1); + musb_platform_set_vbus(musb, 1); handled = IRQ_HANDLED; } @@ -641,7 +631,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, /* go through A_WAIT_VFALL then start a new session */ if (!ignore) - musb_set_vbus(musb, 0); + musb_platform_set_vbus(musb, 0); handled = IRQ_HANDLED; } @@ -1048,10 +1038,13 @@ static void musb_shutdown(struct platform_device *pdev) spin_lock_irqsave(&musb->lock, flags); musb_platform_disable(musb); musb_generic_disable(musb); - if (musb->clock) - clk_put(musb->clock); spin_unlock_irqrestore(&musb->lock, flags); + if (!is_otg_enabled(musb) && is_host_enabled(musb)) + usb_remove_hcd(musb_to_hcd(musb)); + musb_writeb(musb->mregs, MUSB_DEVCTL, 0); + musb_platform_exit(musb); + /* FIXME power down */ } @@ -1068,10 +1061,11 @@ static void musb_shutdown(struct platform_device *pdev) * We don't currently use dynamic fifo setup capability to do anything * more than selecting one of a bunch of predefined configurations. */ -#if defined(CONFIG_USB_TUSB6010) || \ - defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) \ - || defined(CONFIG_ARCH_OMAP4) +#if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_OMAP2PLUS) \ + || defined(CONFIG_USB_MUSB_AM35X) static ushort __initdata fifo_mode = 4; +#elif defined(CONFIG_USB_MUSB_UX500) +static ushort __initdata fifo_mode = 5; #else static ushort __initdata fifo_mode = 2; #endif @@ -1495,7 +1489,7 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb) struct musb_hw_ep *hw_ep = musb->endpoints + i; hw_ep->fifo = MUSB_FIFO_OFFSET(i) + mbase; -#ifdef CONFIG_USB_TUSB6010 +#ifdef CONFIG_USB_MUSB_TUSB6010 hw_ep->fifo_async = musb->async + 0x400 + MUSB_FIFO_OFFSET(i); hw_ep->fifo_sync = musb->sync + 0x400 + MUSB_FIFO_OFFSET(i); hw_ep->fifo_sync_va = @@ -1542,7 +1536,8 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb) /*-------------------------------------------------------------------------*/ #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430) || \ - defined(CONFIG_ARCH_OMAP4) + defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_ARCH_U8500) || \ + defined(CONFIG_ARCH_U5500) static irqreturn_t generic_interrupt(int irq, void *__hci) { @@ -1898,6 +1893,7 @@ allocate_instance(struct device *dev, } musb->controller = dev; + return musb; } @@ -1994,30 +1990,14 @@ bad_config: spin_lock_init(&musb->lock); musb->board_mode = plat->mode; musb->board_set_power = plat->set_power; - musb->set_clock = plat->set_clock; musb->min_power = plat->min_power; - - /* Clock usage is chip-specific ... functional clock (DaVinci, - * OMAP2430), or PHY ref (some TUSB6010 boards). All this core - * code does is make sure a clock handle is available; platform - * code manages it during start/stop and suspend/resume. - */ - if (plat->clock) { - musb->clock = clk_get(dev, plat->clock); - if (IS_ERR(musb->clock)) { - status = PTR_ERR(musb->clock); - musb->clock = NULL; - goto fail1; - } - } + musb->ops = plat->platform_ops; /* The musb_platform_init() call: * - adjusts musb->mregs and musb->isr if needed, * - may initialize an integrated tranceiver * - initializes musb->xceiv, usually by otg_get_transceiver() - * - activates clocks. * - stops powering VBUS - * - assigns musb->board_set_vbus if host mode is enabled * * There are various transciever configurations. Blackfin, * DaVinci, TUSB60x0, and others integrate them. OMAP3 uses @@ -2025,9 +2005,9 @@ bad_config: * isp1504, non-OTG, etc) mostly hooking up through ULPI. */ musb->isr = generic_interrupt; - status = musb_platform_init(musb, plat->board_data); + status = musb_platform_init(musb); if (status < 0) - goto fail2; + goto fail1; if (!musb->isr) { status = -ENODEV; @@ -2110,12 +2090,15 @@ bad_config: * Otherwise, wait till the gadget driver hooks up. */ if (!is_otg_enabled(musb) && is_host_enabled(musb)) { + struct usb_hcd *hcd = musb_to_hcd(musb); + MUSB_HST_MODE(musb); musb->xceiv->default_a = 1; musb->xceiv->state = OTG_STATE_A_IDLE; status = usb_add_hcd(musb_to_hcd(musb), -1, 0); + hcd->self.uses_pio_for_control = 1; DBG(1, "%s mode, status %d, devctl %02x %c\n", "HOST", status, musb_readb(musb->mregs, MUSB_DEVCTL), @@ -2177,10 +2160,6 @@ fail3: device_init_wakeup(dev, 0); musb_platform_exit(musb); -fail2: - if (musb->clock) - clk_put(musb->clock); - fail1: dev_err(musb->controller, "musb_init_controller failed with status %d\n", status); @@ -2206,7 +2185,7 @@ static u64 *orig_dma_mask; static int __init musb_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - int irq = platform_get_irq(pdev, 0); + int irq = platform_get_irq_byname(pdev, "mc"); int status; struct resource *iomem; void __iomem *base; @@ -2244,13 +2223,6 @@ static int __exit musb_remove(struct platform_device *pdev) */ musb_exit_debugfs(musb); musb_shutdown(pdev); -#ifdef CONFIG_USB_MUSB_HDRC_HCD - if (musb->board_mode == MUSB_HOST) - usb_remove_hcd(musb_to_hcd(musb)); -#endif - musb_writeb(musb->mregs, MUSB_DEVCTL, 0); - musb_platform_exit(musb); - musb_writeb(musb->mregs, MUSB_DEVCTL, 0); musb_free(musb); iounmap(ctrl_base); @@ -2263,144 +2235,138 @@ static int __exit musb_remove(struct platform_device *pdev) #ifdef CONFIG_PM -static struct musb_context_registers musb_context; - -void musb_save_context(struct musb *musb) +static void musb_save_context(struct musb *musb) { int i; void __iomem *musb_base = musb->mregs; void __iomem *epio; if (is_host_enabled(musb)) { - musb_context.frame = musb_readw(musb_base, MUSB_FRAME); - musb_context.testmode = musb_readb(musb_base, MUSB_TESTMODE); - musb_context.busctl = musb_read_ulpi_buscontrol(musb->mregs); + musb->context.frame = musb_readw(musb_base, MUSB_FRAME); + musb->context.testmode = musb_readb(musb_base, MUSB_TESTMODE); + musb->context.busctl = musb_read_ulpi_buscontrol(musb->mregs); } - musb_context.power = musb_readb(musb_base, MUSB_POWER); - musb_context.intrtxe = musb_readw(musb_base, MUSB_INTRTXE); - musb_context.intrrxe = musb_readw(musb_base, MUSB_INTRRXE); - musb_context.intrusbe = musb_readb(musb_base, MUSB_INTRUSBE); - musb_context.index = musb_readb(musb_base, MUSB_INDEX); - musb_context.devctl = musb_readb(musb_base, MUSB_DEVCTL); + musb->context.power = musb_readb(musb_base, MUSB_POWER); + musb->context.intrtxe = musb_readw(musb_base, MUSB_INTRTXE); + musb->context.intrrxe = musb_readw(musb_base, MUSB_INTRRXE); + musb->context.intrusbe = musb_readb(musb_base, MUSB_INTRUSBE); + musb->context.index = musb_readb(musb_base, MUSB_INDEX); + musb->context.devctl = musb_readb(musb_base, MUSB_DEVCTL); for (i = 0; i < musb->config->num_eps; ++i) { epio = musb->endpoints[i].regs; - musb_context.index_regs[i].txmaxp = + musb->context.index_regs[i].txmaxp = musb_readw(epio, MUSB_TXMAXP); - musb_context.index_regs[i].txcsr = + musb->context.index_regs[i].txcsr = musb_readw(epio, MUSB_TXCSR); - musb_context.index_regs[i].rxmaxp = + musb->context.index_regs[i].rxmaxp = musb_readw(epio, MUSB_RXMAXP); - musb_context.index_regs[i].rxcsr = + musb->context.index_regs[i].rxcsr = musb_readw(epio, MUSB_RXCSR); if (musb->dyn_fifo) { - musb_context.index_regs[i].txfifoadd = + musb->context.index_regs[i].txfifoadd = musb_read_txfifoadd(musb_base); - musb_context.index_regs[i].rxfifoadd = + musb->context.index_regs[i].rxfifoadd = musb_read_rxfifoadd(musb_base); - musb_context.index_regs[i].txfifosz = + musb->context.index_regs[i].txfifosz = musb_read_txfifosz(musb_base); - musb_context.index_regs[i].rxfifosz = + musb->context.index_regs[i].rxfifosz = musb_read_rxfifosz(musb_base); } if (is_host_enabled(musb)) { - musb_context.index_regs[i].txtype = + musb->context.index_regs[i].txtype = musb_readb(epio, MUSB_TXTYPE); - musb_context.index_regs[i].txinterval = + musb->context.index_regs[i].txinterval = musb_readb(epio, MUSB_TXINTERVAL); - musb_context.index_regs[i].rxtype = + musb->context.index_regs[i].rxtype = musb_readb(epio, MUSB_RXTYPE); - musb_context.index_regs[i].rxinterval = + musb->context.index_regs[i].rxinterval = musb_readb(epio, MUSB_RXINTERVAL); - musb_context.index_regs[i].txfunaddr = + musb->context.index_regs[i].txfunaddr = musb_read_txfunaddr(musb_base, i); - musb_context.index_regs[i].txhubaddr = + musb->context.index_regs[i].txhubaddr = musb_read_txhubaddr(musb_base, i); - musb_context.index_regs[i].txhubport = + musb->context.index_regs[i].txhubport = musb_read_txhubport(musb_base, i); - musb_context.index_regs[i].rxfunaddr = + musb->context.index_regs[i].rxfunaddr = musb_read_rxfunaddr(musb_base, i); - musb_context.index_regs[i].rxhubaddr = + musb->context.index_regs[i].rxhubaddr = musb_read_rxhubaddr(musb_base, i); - musb_context.index_regs[i].rxhubport = + musb->context.index_regs[i].rxhubport = musb_read_rxhubport(musb_base, i); } } - - musb_platform_save_context(musb, &musb_context); } -void musb_restore_context(struct musb *musb) +static void musb_restore_context(struct musb *musb) { int i; void __iomem *musb_base = musb->mregs; void __iomem *ep_target_regs; void __iomem *epio; - musb_platform_restore_context(musb, &musb_context); - if (is_host_enabled(musb)) { - 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_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); - musb_writew(musb_base, MUSB_INTRTXE, musb_context.intrtxe); - musb_writew(musb_base, MUSB_INTRRXE, musb_context.intrrxe); - musb_writeb(musb_base, MUSB_INTRUSBE, musb_context.intrusbe); - musb_writeb(musb_base, MUSB_DEVCTL, musb_context.devctl); + musb_writeb(musb_base, MUSB_POWER, musb->context.power); + musb_writew(musb_base, MUSB_INTRTXE, musb->context.intrtxe); + musb_writew(musb_base, MUSB_INTRRXE, musb->context.intrrxe); + musb_writeb(musb_base, MUSB_INTRUSBE, musb->context.intrusbe); + musb_writeb(musb_base, MUSB_DEVCTL, musb->context.devctl); for (i = 0; i < musb->config->num_eps; ++i) { epio = musb->endpoints[i].regs; musb_writew(epio, MUSB_TXMAXP, - musb_context.index_regs[i].txmaxp); + musb->context.index_regs[i].txmaxp); musb_writew(epio, MUSB_TXCSR, - musb_context.index_regs[i].txcsr); + musb->context.index_regs[i].txcsr); musb_writew(epio, MUSB_RXMAXP, - musb_context.index_regs[i].rxmaxp); + musb->context.index_regs[i].rxmaxp); musb_writew(epio, MUSB_RXCSR, - musb_context.index_regs[i].rxcsr); + musb->context.index_regs[i].rxcsr); if (musb->dyn_fifo) { musb_write_txfifosz(musb_base, - musb_context.index_regs[i].txfifosz); + musb->context.index_regs[i].txfifosz); musb_write_rxfifosz(musb_base, - musb_context.index_regs[i].rxfifosz); + musb->context.index_regs[i].rxfifosz); musb_write_txfifoadd(musb_base, - musb_context.index_regs[i].txfifoadd); + musb->context.index_regs[i].txfifoadd); musb_write_rxfifoadd(musb_base, - musb_context.index_regs[i].rxfifoadd); + musb->context.index_regs[i].rxfifoadd); } if (is_host_enabled(musb)) { musb_writeb(epio, MUSB_TXTYPE, - musb_context.index_regs[i].txtype); + musb->context.index_regs[i].txtype); musb_writeb(epio, MUSB_TXINTERVAL, - musb_context.index_regs[i].txinterval); + musb->context.index_regs[i].txinterval); musb_writeb(epio, MUSB_RXTYPE, - musb_context.index_regs[i].rxtype); + musb->context.index_regs[i].rxtype); musb_writeb(epio, MUSB_RXINTERVAL, - musb_context.index_regs[i].rxinterval); + musb->context.index_regs[i].rxinterval); musb_write_txfunaddr(musb_base, i, - musb_context.index_regs[i].txfunaddr); + musb->context.index_regs[i].txfunaddr); musb_write_txhubaddr(musb_base, i, - musb_context.index_regs[i].txhubaddr); + musb->context.index_regs[i].txhubaddr); musb_write_txhubport(musb_base, i, - musb_context.index_regs[i].txhubport); + musb->context.index_regs[i].txhubport); ep_target_regs = musb_read_target_reg_base(i, musb_base); musb_write_rxfunaddr(ep_target_regs, - musb_context.index_regs[i].rxfunaddr); + musb->context.index_regs[i].rxfunaddr); musb_write_rxhubaddr(ep_target_regs, - musb_context.index_regs[i].rxhubaddr); + musb->context.index_regs[i].rxhubaddr); musb_write_rxhubport(ep_target_regs, - musb_context.index_regs[i].rxhubport); + musb->context.index_regs[i].rxhubport); } } } @@ -2411,9 +2377,6 @@ static int musb_suspend(struct device *dev) unsigned long flags; struct musb *musb = dev_to_musb(&pdev->dev); - if (!musb->clock) - return 0; - spin_lock_irqsave(&musb->lock, flags); if (is_peripheral_active(musb)) { @@ -2428,10 +2391,6 @@ static int musb_suspend(struct device *dev) musb_save_context(musb); - if (musb->set_clock) - musb->set_clock(musb->clock, 0); - else - clk_disable(musb->clock); spin_unlock_irqrestore(&musb->lock, flags); return 0; } @@ -2441,14 +2400,6 @@ static int musb_resume_noirq(struct device *dev) struct platform_device *pdev = to_platform_device(dev); struct musb *musb = dev_to_musb(&pdev->dev); - if (!musb->clock) - return 0; - - if (musb->set_clock) - musb->set_clock(musb->clock, 1); - else - clk_enable(musb->clock); - musb_restore_context(musb); /* for static cmos like DaVinci, register values were preserved |