Hello Wolfgang, Wolfgang Denk wrote: > In message <4b5feb9e.3040...@denx.de> you wrote: >> [PATCH 1/2] cramfs: make cramfs usable without a NOR flash > > I'm afraid I still don't understand how this is supposed to work. > > Where would you store the cramfs on a system "without a NOR flash"? > Are we talking about - say - a NAND storage device then?
The cramfs image is located in RAM (where it first was copied from whenever), and then files are read from it with the "cramfsload" command ... >> @@ -119,7 +121,11 @@ int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int >> argc, char *argv[]) >> dev.id = &id; >> part.dev = &dev; >> /* fake the address offset */ >> +#if !defined(CONFIG_SYS_NO_FLASH) >> part.offset = addr - flash_info[id.num].start[0]; >> +#else >> + part.offset = addr; >> +#endif > > I understand that we now can have the cramfs image either in NOR flash > _or_ in NAND. No, we can have it in ROM or in RAM. > What about systems that have both NOR _and_ NAND? Are there such systems, with cramfs support? Actual cramfs support in mainline is only for NOR devices ... But, I think, it should work to extract a file from a cramfs stored on a NAND on such systems with the "cramfsload" command ... if not, the cramfs image could be copied from NAND to RAM, and then it works ... bye Heiko -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
