diff options
| author | Ben Dooks <ben.dooks@codethink.co.uk> | 2015-03-18 15:53:09 +0000 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-03-19 11:28:16 -0500 |
| commit | a3dd3befd7cb7d445fcb7c51cd922bf89afe0762 (patch) | |
| tree | a8b9bb36f55d07c9451e69891762f7a23b2a6fec | |
| parent | b48cb02de37976ad2ebef201ad40aa40156f6daa (diff) | |
| download | linux-a3dd3befd7cb7d445fcb7c51cd922bf89afe0762.tar.bz2 | |
usb: gadget: atmel_usba: use endian agnostic IO on ARM
Change from using the __raw IO accesors to the endian agnostic versions
of readl/writel_relaxed when not on AVR32. This fixes issues with running
big endian on ARMv7.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
--
CC: Nicolas Ferre <nicolas.ferre@atmel.com>
CC: Felipe Balbi <balbi@ti.com>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC: linux-usb@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
| -rw-r--r-- | drivers/usb/gadget/udc/atmel_usba_udc.c | 4 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/atmel_usba_udc.h | 22 |
2 files changed, 18 insertions, 8 deletions
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index d019b6c9d74d..4c01953a0869 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -152,7 +152,7 @@ static int regs_dbg_open(struct inode *inode, struct file *file) spin_lock_irq(&udc->lock); for (i = 0; i < inode->i_size / 4; i++) - data[i] = __raw_readl(udc->regs + i * 4); + data[i] = usba_io_readl(udc->regs + i * 4); spin_unlock_irq(&udc->lock); file->private_data = data; @@ -1249,7 +1249,7 @@ static int handle_ep0_setup(struct usba_udc *udc, struct usba_ep *ep, if (crq->wLength != cpu_to_le16(sizeof(status))) goto stall; ep->state = DATA_STAGE_IN; - __raw_writew(status, ep->fifo); + usba_io_writew(status, ep->fifo); usba_ep_writel(ep, SET_STA, USBA_TX_PK_RDY); break; } diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.h b/drivers/usb/gadget/udc/atmel_usba_udc.h index 085749a649e1..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) |