Hi, No it's not wrong. You should use CKSEG1ADDR() to access that address. KSEG1 is an unmapped uncached address space on physical memory. So, CKSEG1ADDR(1F000000) is basically 0xBF000000.
Regard, Nikolaos Pasaloukos > -----Original Message----- > From: u-boot-boun...@lists.denx.de [mailto:u-boot- > boun...@lists.denx.de] On Behalf Of RdrouterUboot Router > Sent: 28 November 2013 13:06 > To: u-boot@lists.denx.de > Subject: [U-Boot] ralink RT3052 5X flash memory map > > Hi All, > > Uboot works.Flash size is 4Mbyte.SDRAM is 32Mbyte.Flash memory map is: > 0xBF00 0000 - 0xBF3F FFFF. > But MIPS CPU datasheet say: flasy memory map is:0x1F00 0000 - 0x1FFF FFFF. > Datasheet is wrong? or flash memory map can be changed by some > rules?And What is the rule? > > Uboot version: v1.1.3; > MIPS CPU: Ralink RT3052; > > RT3052 datasheet Memory Map say: > Start address end address Size > 1F00.0000 - 1FFF.FFFF 16MB(flash) > Description > When BOOT_FROM = 2'b00,up-to 16MB external 16-bit flash is mapped. > When BOOT_FROM = 2'b01, up-to 8MB external 8-bit flash is mapped. > > Thanks. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
