On 27 August 2014 20:20, Florian Fainelli <f.fainelli@xxxxxxxxx> wrote: > On 08/26/2014 10:54 PM, Rafał Miłecki wrote: >> Could we avoid that? Type of flash can easily be checked in the code. >> All we need to do is to read BCMA_IOST register of BCMA_CORE_NS_ROM >> core. > > So there is a boot status register you can read to tell what type of > flash you booted from, but does that also give you the resource ranges > for these type of flashes? Presumably they will be mapped into different > addresses (at least bcm63xx is like that), that information needs to be > listed somewhere. Take a look at find_nvram in nvram_rw.c. It scans the whole region which is up to 0x02000000 (SI_FLASH2_SZ) size. In case of NAND limit is slightly different (nfl_boot_size function): 1) On ARM it's 0x800000 or 0x2600000 2) On MIPS it's 0x200000 -- Rafał -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
