diff options
| author | Bryan Wu <cooloney@kernel.org> | 2008-12-02 21:33:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-07 10:00:07 -0800 |
| commit | c6cf8b003e5a37f8193c2883876c5942adcd7284 (patch) | |
| tree | c0ce285fb7a70dfd149ecfc325ad4c468ea0bbbc /drivers/usb/musb/musb_core.h | |
| parent | 6995eb68aab70e79eedb710d7d6d1f22d8aea4a7 (diff) | |
USB: musb: add Blackfin specific configuration to MUSB
Some config registers are not avaiable in Blackfin, we have to comment them out.
v1-v2:
- remove Blackfin specific header file
- add Blackfin register version to musb_regs.h header file
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/musb/musb_core.h')
| -rw-r--r-- | drivers/usb/musb/musb_core.h | 70 |
1 files changed, 67 insertions, 3 deletions
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index d45d258e63f0..630946a2d9fc 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -191,7 +191,7 @@ enum musb_g_ep0_state { */ #if defined(CONFIG_ARCH_DAVINCI) || defined(CONFIG_ARCH_OMAP2430) \ - || defined(CONFIG_ARCH_OMAP3430) + || defined(CONFIG_ARCH_OMAP3430) || defined(CONFIG_BLACKFIN) /* REVISIT indexed access seemed to * misbehave (on DaVinci) for at least peripheral IN ... */ @@ -448,6 +448,70 @@ static inline struct musb *gadget_to_musb(struct usb_gadget *g) } #endif +#ifdef CONFIG_BLACKFIN +static inline int musb_read_fifosize(struct musb *musb, + struct musb_hw_ep *hw_ep, u8 epnum) +{ + musb->nr_endpoints++; + musb->epmask |= (1 << epnum); + + if (epnum < 5) { + hw_ep->max_packet_sz_tx = 128; + hw_ep->max_packet_sz_rx = 128; + } else { + hw_ep->max_packet_sz_tx = 1024; + hw_ep->max_packet_sz_rx = 1024; + } + hw_ep->is_shared_fifo = false; + + return 0; +} + +static inline void musb_configure_ep0(struct musb *musb) +{ + musb->endpoints[0].max_packet_sz_tx = MUSB_EP0_FIFOSIZE; + musb->endpoints[0].max_packet_sz_rx = MUSB_EP0_FIFOSIZE; + musb->endpoints[0].is_shared_fifo = true; +} + +#else + +static inline int musb_read_fifosize(struct musb *musb, + struct musb_hw_ep *hw_ep, u8 epnum) +{ + u8 reg = 0; + + /* read from core using indexed model */ + reg = musb_readb(hw_ep->regs, 0x10 + MUSB_FIFOSIZE); + /* 0's returned when no more endpoints */ + if (!reg) + return -ENODEV; + + musb->nr_endpoints++; + musb->epmask |= (1 << epnum); + + hw_ep->max_packet_sz_tx = 1 << (reg & 0x0f); + + /* shared TX/RX FIFO? */ + if ((reg & 0xf0) == 0xf0) { + hw_ep->max_packet_sz_rx = hw_ep->max_packet_sz_tx; + hw_ep->is_shared_fifo = true; + return 0; + } else { + hw_ep->max_packet_sz_rx = 1 << ((reg & 0xf0) >> 4); + hw_ep->is_shared_fifo = false; + } + + return 0; +} + +static inline void musb_configure_ep0(struct musb *musb) +{ + musb->endpoints[0].max_packet_sz_tx = MUSB_EP0_FIFOSIZE; + musb->endpoints[0].max_packet_sz_rx = MUSB_EP0_FIFOSIZE; +} +#endif /* CONFIG_BLACKFIN */ + /***************************** Glue it together *****************************/ @@ -470,14 +534,14 @@ extern void musb_hnp_stop(struct musb *musb); extern int musb_platform_set_mode(struct musb *musb, u8 musb_mode); -#if defined(CONFIG_USB_TUSB6010) || \ +#if defined(CONFIG_USB_TUSB6010) || defined(CONFIG_BLACKFIN) || \ defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP34XX) extern void musb_platform_try_idle(struct musb *musb, unsigned long timeout); #else #define musb_platform_try_idle(x, y) do {} while (0) #endif -#ifdef CONFIG_USB_TUSB6010 +#if defined(CONFIG_USB_TUSB6010) || defined(CONFIG_BLACKFIN) extern int musb_platform_get_vbus_status(struct musb *musb); #else #define musb_platform_get_vbus_status(x) 0 |