omap_readb
omap_writeb((omap_readb(uclk->sysc_addr) & ~0x10) | 8,
omap_writeb((omap_readb(uclk->sysc_addr) & ~0x18), uclk->sysc_addr);
EXPORT_SYMBOL(omap_readb);
*buf++ = omap_readb(UDC_DATA);
extern u8 omap_readb(u32 pa);