I am using u-boot 2009.08 version.   Issue has been resolved. Problem: I am using Dma to initialize DDR and minidma required cache bit enable for DDR, because of cache enabled I was getting lmb->memory.region[i].size = 0 and end-up with an error "ramdisk - allocation error" Solution: I have disabled the DDR cache just after DDR initialization by DMA.

--- On Thu, 23/9/10, Wolfgang Denk wd@denx.de wrote:

From: Wolfgang Denk wd@denx.de Subject: Re: Ramdisk - allocation error To: "Ronny D" ronny_d37@yahoo.com Cc: "Stefan Roese" sr@denx.de, "U-boot" u-boot@lists.denx.de Date: Thursday, 23 September, 2010, 9:41 AM

Dear Ronny D,

In message 799862.6988.qm@web46115.mail.sp1.yahoo.com you wrote:

I am using ppc440 based customised board.

Which exact version of U-Boot are you running?  And which board configuration is this?  Is this mainline code, or some out-of-tree port?

While running the u-boot linux kernel uncompressed successfully but ramdisk   end-up with following error: ERROR: Failed to allocate 0x800000 bytes below 0xffffffff. ramdisk - allocation error

Please provide the complete boot log with all commands you entered, full, information about Linux kernel and ramdisk image (Output of the respective "iminfo" commands), and all U-Boot messages.

Best regards,

Wolfgang Denk