> +/* Macros to help extract property data */ > +#define U8TOU32(b, offs) \ > + ((((u32)b[0 + offs] << 0) & 0x000000ff) | \ > + (((u32)b[1 + offs] << 8) & 0x0000ff00) | \ > + (((u32)b[2 + offs] << 16) & 0x00ff0000) | \ > + (((u32)b[3 + offs] << 24) & 0xff000000)) Please us helpers like get_unaligned_le32 instead opencoding them. > +#define DT_PROP_DATA_TO_U32(b, offs) (fdt32_to_cpu(U8TOU32(b, offs))) And together with this it looks really whacky. So you're converting from le to native first and then do another conversion from be to cpu? Something doesn't work out here. > +/* -------------------- Functions -------------------- */ Please remove pointless comments like this one. > + > +/* > + * If the DT nodes are handy, determine which MEMC holds the specified > + * physical address. > + */ > +#ifdef CONFIG_ARCH_BRCMSTB > +int __brcmstb_memory_phys_addr_to_memc(phys_addr_t pa, void __iomem *base) Please move this into the arm arch code. > +#elif defined(CONFIG_MIPS) And this into the mips arch code. > +EXPORT_SYMBOL(brcmstb_memory_phys_addr_to_memc); > +EXPORT_SYMBOL(brcmstb_memory_memc_size); Why is this exported?