On 10/26/2010 10:25 AM, Heiko Schocher wrote: > Hello Stefano, > > Stefano Babic wrote: >> On 10/26/2010 10:05 AM, Shawn Guo wrote: >>> Hi Stefano, >>> >>> On Tue, Oct 26, 2010 at 3:59 PM, Stefano Babic <sba...@denx.de> wrote: >>>> On 10/25/2010 05:14 PM, Shawn Guo wrote: >>>> >>>>> +#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1 >>>>> +#define CONFIG_SYS_INIT_SP_ADDR (IRAM_BASE_ADDR + 0x1000) >>>> What is the meaning of the offset at 0x1000 ? Is there something at >>>> IRAM_BASE_ADDR ? >>>> >>> I thought CONFIG_SYS_INIT_SP_ADDR is assigned to stack pointer (sp) >>> which decrease the address. Is it not the case? >>> >> >> Yes, my doubt is due to the fact that we do not set the SP at the end of >> the IRAM and we set it to an arbitrary address in between. > > We should set the CONFIG_SYS_INIT_SP_ADDR @ (IRAM_BASE_ADDR + IRAM_BASE_SIZE > - CONFIG_SYS_GBL_DATA_SIZE)
Agree, this is what I set for the vision2 board. We should be consistent and do the same for the mx51evk. > > Don;t know if IRAM_BASE_SIZE exists ... we must define it. I set it in the board configuration file, but it is wrong. The value should be moved into register definition file for the SoC (imx-regs.h) Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: off...@denx.de ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
