We have a strange problem running U-boot on an AT91SAM9G20 board. The board uses single 16 bit data bus SDRAM chip. Everything works fine when using 32MB SDRAM chip but U-boot seems to hang when putting in a 64MB SDRAM chip. The Atmel boot strap code was modified to have the correct row and column settings for the SDRAM chip. The hardware is verified to be working fine with JTAG. We can also boot directly to Linux from Atmel boot strap code with some modification. The memtester is used to verify the SDRAM working fine after booting up Linux. So it must be some thing between the boot strap code and U-boot that upsets the U-boot. Can anyone give a hint what might be wrong?
Many thanks in advance, ZL _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
