From 322337168f22e8245aae7f38e84c5711cd4c1265 Mon Sep 17 00:00:00 2001 From: Giuseppe GORGOGLIONE Date: Tue, 24 Feb 2009 15:27:34 -0800 Subject: [PATCH] USB: musb: fix init oops crash with static FIFO config Correct musb_read_fifosize() and musb_configure_ep0() functions for the #ifndef BLACKFIN branch when the silicon uses static FIFO configuration. (Most current silicon configures this controller to use dynamic FIFO configuration; some parts from ST don't, like the STM STA2062.) Signed-off-by: Giuseppe GORGOGLIONE Signed-off-by: Felipe Balbi Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/musb/musb_core.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index adf1806007ff..efb39b5e55b5 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -478,10 +478,11 @@ static inline void musb_configure_ep0(struct musb *musb) static inline int musb_read_fifosize(struct musb *musb, struct musb_hw_ep *hw_ep, u8 epnum) { + void *mbase = musb->mregs; u8 reg = 0; /* read from core using indexed model */ - reg = musb_readb(hw_ep->regs, 0x10 + MUSB_FIFOSIZE); + reg = musb_readb(mbase, MUSB_EP_OFFSET(epnum, MUSB_FIFOSIZE)); /* 0's returned when no more endpoints */ if (!reg) return -ENODEV; @@ -508,6 +509,7 @@ 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; } #endif /* CONFIG_BLACKFIN */ -- 2.34.1