usb: musb: Populate new IO functions for tusb6010

Let's populate the new IO functions for tusb6010 but not use
them yet.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 69ca92d..42e0cf9 100644 (file)
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -126,6 +126,41 @@ static void tusb_wbus_quirk(struct musb *musb, int enabled)
        }
 }
 
+static u32 tusb_fifo_offset(u8 epnum)
+{
+       return 0x200 + (epnum * 0x20);
+}
+
+/*
+ * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum.
+ */
+static u8 tusb_readb(const void __iomem *addr, unsigned offset)
+{
+       u16 tmp;
+       u8 val;
+
+       tmp = __raw_readw(addr + (offset & ~1));
+       if (offset & 1)
+               val = (tmp >> 8);
+       else
+               val = tmp & 0xff;
+
+       return val;
+}
+
+static void tusb_writeb(void __iomem *addr, unsigned offset, u8 data)
+{
+       u16 tmp;
+
+       tmp = __raw_readw(addr + (offset & ~1));
+       if (offset & 1)
+               tmp = (data << 8) | (tmp & 0xff);
+       else
+               tmp = (tmp & 0xff00) | data;
+
+       __raw_writew(tmp, addr + (offset & ~1));
+}
+
 /*
  * TUSB 6010 may use a parallel bus that doesn't support byte ops;
  * so both loading and unloading FIFOs need explicit byte counts.
@@ -1135,9 +1170,15 @@ static int tusb_musb_exit(struct musb *musb)
 }
 
 static const struct musb_platform_ops tusb_ops = {
+       .quirks         = MUSB_IN_TUSB,
        .init           = tusb_musb_init,
        .exit           = tusb_musb_exit,
 
+       .fifo_offset    = tusb_fifo_offset,
+       .readb          = tusb_readb,
+       .writeb         = tusb_writeb,
+       .read_fifo      = musb_read_fifo,
+       .write_fifo     = musb_write_fifo,
        .enable         = tusb_musb_enable,
        .disable        = tusb_musb_disable,