Hi, > Why do you need to access all 2GB from u-boot?
I need only to recognize the real memory size and pass the value to Linux. If I return the real value 2GB from my initdram() U-boot does not like that and resets the board. Our devices have to support different DDR types and sizes (512/1024/2048 MB), so U-boot is responsible for DDR init and reporting its size to Linux... >From your answer I understand that U-boot does not support >1GB of memory for MPC83xx. Is it correct? Best regards, Valeriy Glushkov ----- Original Message ----- From: "Scott Wood" <scottw...@freescale.com> To: "Valeriy Glushkov" <g...@lstec.com> Cc: <u-boot@lists.denx.de> Sent: 30 ??????? 2008 ?. 18:45 Subject: Re: [U-Boot] Is it possible to use 2GB or DDR on MPC834x? > Valeriy Glushkov wrote: >> Hi Guys! >> >> On my mpc8347 based board I can access 1GB of DDR with mapping 4 of 256MB >> ranges via IBAT\DBAT registers. >> >> But with the 2 GB of DDR it's impossible to map them with BATs (there are >> only 8 BATs in the e300 core and the rest 4 of them are already used). >> >> All the mpc83xx examples in the U-boot tree seem to use <=1GB of SDRAM, >> so they use BATs to map them. >> >> Any suggestions are highly appreciated. > > Why do you need to access all 2GB from u-boot? > > -Scott _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
