[U-Boot] Host driver for ISP1362?

[Steve Strobel]

I am working on a embedded board that uses a BF537 (Blackfin) and
ISP1362 USB controller.  I want to access a USB flash drive from
U-Boot.  But I haven't been able to find the drivers for the ISP1362.
I have found two other U-Boot target platforms that at least reference
the ISP1362:

In include/configs/NSCU.h, I found this:

    #define     CONFIG_ISP1362_USB              /* ISP1362 USB OTG
controller   */

    #ifdef      CONFIG_ISP1362_USB
    #define     CONFIG_SYS_ISP1362_BASE 0xD0000000
    #define CONFIG_SYS_ISP1362_OR_AM    0xFFFF8000
    #define CONFIG_SYS_OR5_ISP1362
(CONFIG_SYS_ISP1362_OR_AM | OR_CSNT_SAM | \
                                 OR_ACS_DIV2       | OR_BI       | OR_SCY_5_CLK)
    #define CONFIG_SYS_BR5_ISP1362
((CONFIG_SYS_ISP1362_BASE & BR_BA_MSK) | \
                                 BR_PS_16          | BR_MS_GPCM | BR_V )
    #endif

And in board/tqc/tqm8xx/tqm8xx.c:

    #ifdef      CONFIG_ISP1362_USB
      memctl->memc_or5 = CONFIG_SYS_OR5_ISP1362;
      memctl->memc_br5 = CONFIG_SYS_BR5_ISP1362;
    #endif

The first of those certainly appears to be setting up a driver for the
ISP1362, but I haven't been able to find that driver.  Any pointers
would be greatly appreciated.

Steve