Luigi 'Comio' Mantellini wrote: > I'm working on the porting of u-boot (1.3.1 from git) to a mips based > SoC. The port seems to work fine unless the UNCACHED_SDRAM macro (used > by do_bootm_linux). > > Using the version from commit de9a738faa7c2f47286119c3bfebc3dfbfe7d86d > (that maps the addresses on KSEG1 instead on physical addresses) the > linux kernel is not able to start, while changing the macro to a > PHYSADDR(a) (how was before the commit) the linux kernel starts without > any problem. > > In order to make my system bootable I changed the macro UNCACHED_SDRAM > from: > > #define UNCACHED_SDRAM(a) KSEG1ADDR(a) > > to > > #define UNCACHED_SDRAM(a) PHYSADDR(a) (how defined before the commit > de9a738...)
So it seems Alchemy-based SoC. if so, > What I need to change on my board specific u-boot in order to use the > KSEG1 address space? what do you mean "in order to use the KSEG1 address space?" I'm not familiar with Au1XXX, but you might need CONFIG_AU1X00 in your board config. Some URLs added[1][2]. Shinya [1] http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/32316/focus=32372 [2] http://www.linux-mips.org/wiki/Alchemy ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
