How about your U-Boot, does it recognize the whole 1G memory or just 512M memory. Without any mem= option in kernel cmdline, kernel will get such memory information from U-Boot, IMHO.
My U-Boot recognize the whole 1G memory, then even without mem=1G, Kernel will get the whole 1G physical memory on board.
Robert and Laurent,
How about your U-Boot, does it recognize the whole 1G memory or just 512M memory. Without any mem= option in kernel cmdline, kernel will get such memory information from U-Boot, IMHO.
My U-Boot recognize the whole 1G memory, then even without mem=1G, Kernel will get the whole 1G physical memory on board.
Thanks,
-Bryan