diff options
Diffstat (limited to 'drivers/usb/host/ehci.h')
| -rw-r--r-- | drivers/usb/host/ehci.h | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index e8f41c5e771b..9dfc6c1394d6 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -38,7 +38,7 @@ typedef __u16 __bitwise __hc16; #endif /* statistics can be kept for tuning/monitoring */ -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG #define EHCI_STATS #endif @@ -225,6 +225,7 @@ struct ehci_hcd { /* one per controller */ unsigned has_synopsys_hc_bug:1; /* Synopsys HC */ unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */ unsigned need_oc_pp_cycle:1; /* MPC834X port power */ + unsigned imx28_write_fix:1; /* For Freescale i.MX28 */ /* required for usb32 quirk */ #define OHCI_CTRL_HCFS (3 << 6) @@ -248,7 +249,7 @@ struct ehci_hcd { /* one per controller */ #endif /* debug files */ -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG struct dentry *debug_dir; #endif @@ -728,6 +729,18 @@ static inline unsigned int ehci_readl(const struct ehci_hcd *ehci, #endif } +#ifdef CONFIG_SOC_IMX28 +static inline void imx28_ehci_writel(const unsigned int val, + volatile __u32 __iomem *addr) +{ + __asm__ ("swp %0, %0, [%1]" : : "r"(val), "r"(addr)); +} +#else +static inline void imx28_ehci_writel(const unsigned int val, + volatile __u32 __iomem *addr) +{ +} +#endif static inline void ehci_writel(const struct ehci_hcd *ehci, const unsigned int val, __u32 __iomem *regs) { @@ -736,7 +749,10 @@ static inline void ehci_writel(const struct ehci_hcd *ehci, writel_be(val, regs) : writel(val, regs); #else - writel(val, regs); + if (ehci->imx28_write_fix) + imx28_ehci_writel(val, regs); + else + writel(val, regs); #endif } @@ -832,9 +848,9 @@ static inline u32 hc32_to_cpup (const struct ehci_hcd *ehci, const __hc32 *x) dev_warn(ehci_to_hcd(ehci)->self.controller , fmt , ## args) -#if !defined(DEBUG) && !defined(CONFIG_DYNAMIC_DEBUG) +#ifndef CONFIG_DYNAMIC_DEBUG #define STUB_DEBUG_FILES -#endif /* !DEBUG && !CONFIG_DYNAMIC_DEBUG */ +#endif /*-------------------------------------------------------------------------*/ |