Hi Kim Thanks for the reply.
I would like to make my situation more clear to you. CONFIG_SPD_EEPROM is defined in my board config file already. I could read the following spd eeprom info also. From this, its clear that we have enough hardware to provide 1GB memory. *DIMM type: JKCS38UKA 1GB SPD size: 128 EEPROM size: 256 Memory type: 8 Row addr: 14 Column addr: 10 # of rows: 96 Row density: 1 # of banks: 8 Data width: 72 Chip width: 8 Refresh rate: 82 CAS latencies: 38 Write latencies: 04 tRP: 60 **tRCD: 60* In mpc8360e , we have 8 BAT registers each has 256MB max size. I tried to club 4 bat registers to get 1GB RAM space. But Its failing. "board info" structure, which passes the u-boot parameters to linux kernel has ram_size= 1GB. Also the DDRLAWBAR & DDRLAWAR registers are configured for 1GB. But still I could transfer only 256MB to DRAM in the u-boot level. Is it a u-boot limitation? I am very new to u-boot & kernel. So pls help me out. Regards Remya On Wed, Jun 9, 2010 at 9:58 PM, Kim Phillips <kim.phill...@freescale.com>wrote: > On Wed, 9 Jun 2010 17:31:13 +0530 > remya pillai <remya.pil...@dnsoftsol.com> wrote: > > > I have an mpc8360e processor (has e300 core and QE) for our networking > > application. I have to use 1GB DRAM module in my board, but u-boot for > > powerpc is not supporting that. It is supporting only 256MB DRAM module. > > Apparently DDR is set up manually in the u-boot port of your board - > try defining CONFIG_SPD_EEPROM in your board config, or reconfigure its > static DDR parameters. > > Kim > -- REMYA S J DN Softsol Private Limited Confidential
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