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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>
This commit is contained in:
Tony Lindgren 2014-11-24 11:05:00 -08:00 committed by Felipe Balbi
parent 5450ac88dc
commit 9d506fc6d2
1 changed files with 41 additions and 0 deletions
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41
drivers/usb/musb/tusb6010.c
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@ -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,