On 14.03.2012 09:08, Linh Nguyễn wrote: > On Wed, Mar 14, 2012 at 2:44 PM, Ilija Kocho <ili...@siva.com.mk> wrote: >> Hi Linh >> >> >> >> On 14.03.2012 05:39, Linh Nguyễn wrote: >>> Hi all, >>> >>> Does anyone successful porting Redboot for TWRK70F120M hardware board? >>> I have edited HAL of TWRK60N512 to use as TWRK70F120M. It can run but >>> I don't now how to add SDRAM of K70 into linker file and use it. >>> Attached files are linker file that I edited to use SDRAM, I have >>> initialized PLL0 and PLL1 then DDR registers. I can access SDRAM by >>> hard address (like 0x70001000). But when I load a binary file into >>> SDRAM, it shown the warrning as bellow: >>> <code> >>> RedBoot> load -r -v -h 10.207.215.87 -m tftp -b 0x70008000 Image >>> Specified address (0x70008000) is not believed to be in RAM - continue >>> (y/n)? y >>> </code> >>> >>> If you have any ideas about the problems, please let me know :). >> You need to report this memory to RedBoot. Look for >> cyg_plf_memory_segment() in twr_k60n512_misc.c (or whatever name you >> have given to this file). > I have done this before. (twr_k70f120m_misc.c attached.) > > Can you take a look at the file and show me my mistake :). Or please > share me your linker config & memory segment () that you configure for > DRAM.
I think you don't need to add dram region but simply declare dram as main ram. I think it will be easiest for you if you use TWR-K60N512-FXM target as example. (added recently so you may need to update/checkout eCos). It is very similar to what you probably need - only with FlexBus external memory instead of DDR. Probably in addition to initialization code you only need to change base address and size of RAM and it should work. I hope this helps. Looking forward to your feedback. Ilija -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
