diff options
Diffstat (limited to 'drivers/usb/gadget/udc/atmel_usba_udc.h')
| -rw-r--r-- | drivers/usb/gadget/udc/atmel_usba_udc.h | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.h b/drivers/usb/gadget/udc/atmel_usba_udc.h index 497cd18836f3..ea448a344767 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.h +++ b/drivers/usb/gadget/udc/atmel_usba_udc.h @@ -191,18 +191,28 @@ | USBA_BF(name, value)) /* Register access macros */ +#ifdef CONFIG_AVR32 +#define usba_io_readl __raw_readl +#define usba_io_writel __raw_writel +#define usba_io_writew __raw_writew +#else +#define usba_io_readl readl_relaxed +#define usba_io_writel writel_relaxed +#define usba_io_writew writew_relaxed +#endif + #define usba_readl(udc, reg) \ - __raw_readl((udc)->regs + USBA_##reg) + usba_io_readl((udc)->regs + USBA_##reg) #define usba_writel(udc, reg, value) \ - __raw_writel((value), (udc)->regs + USBA_##reg) + usba_io_writel((value), (udc)->regs + USBA_##reg) #define usba_ep_readl(ep, reg) \ - __raw_readl((ep)->ep_regs + USBA_EPT_##reg) + usba_io_readl((ep)->ep_regs + USBA_EPT_##reg) #define usba_ep_writel(ep, reg, value) \ - __raw_writel((value), (ep)->ep_regs + USBA_EPT_##reg) + usba_io_writel((value), (ep)->ep_regs + USBA_EPT_##reg) #define usba_dma_readl(ep, reg) \ - __raw_readl((ep)->dma_regs + USBA_DMA_##reg) + usba_io_readl((ep)->dma_regs + USBA_DMA_##reg) #define usba_dma_writel(ep, reg, value) \ - __raw_writel((value), (ep)->dma_regs + USBA_DMA_##reg) + usba_io_writel((value), (ep)->dma_regs + USBA_DMA_##reg) /* Calculate base address for a given endpoint or DMA controller */ #define USBA_EPT_BASE(x) (0x100 + (x) * 0x20) @@ -313,6 +323,9 @@ struct usba_udc { /* Protect hw registers from concurrent modifications */ spinlock_t lock; + /* Mutex to prevent concurrent start or stop */ + struct mutex vbus_mutex; + void __iomem *regs; void __iomem *fifo; @@ -328,6 +341,7 @@ struct usba_udc { struct clk *hclk; struct usba_ep *usba_ep; bool bias_pulse_needed; + bool clocked; u16 devstatus; |