diff options
| author | Tony Lindgren <tony@atomide.com> | 2014-11-24 22:05:00 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-11-25 17:47:05 +0300 |
| commit | 9d506fc6d2cdafdec5ce605036f5eeec9fd59657 (patch) | |
| tree | 4df4e6b6490e784f6e4ed75cd3ec4c59d79c229a /drivers/usb/musb/tusb6010.c | |
| parent | 5450ac88dcf09b258d0404b45316583806799ef4 (diff) | |
| download | linux-9d506fc6d2cdafdec5ce605036f5eeec9fd59657.tar.xz | |
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>
Diffstat (limited to 'drivers/usb/musb/tusb6010.c')
| -rw-r--r-- | drivers/usb/musb/tusb6010.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 69ca92d6032f..42e0cf9b170f 100644 --- 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, |