Sequoia board schematics (DES0211_11_SCH_11.pdf, page 5, unit U1D) specifies that BankSel#1 is not connected, while bootloader memory configuration is (board/amcc/sequoia/sdram.c): mtsdram(DDR0_10, 0x00000300); i.e. both Chip Selects used - not correct.
If we change to correct value here: mtsdram(DDR0_10, 0x00000100); memory is accessible OK also.
Signed-off-by: Mikhail Zolotaryov lebon@lebon.org.ua ---
--- orig_2009.1/board/amcc/sequoia/sdram.c.orig 2009-03-11 10:36:35.000000000 +0200 +++ orig_2009.1/board/amcc/sequoia/sdram.c 2009-03-11 10:37:03.000000000 +0200 @@ -72,7 +72,7 @@ mtsdram(DDR0_07, 0x000D0100); mtsdram(DDR0_08, 0x02430001); mtsdram(DDR0_09, 0x00011D5F); - mtsdram(DDR0_10, 0x00000300); + mtsdram(DDR0_10, 0x00000100); mtsdram(DDR0_11, 0x0027C800); mtsdram(DDR0_12, 0x00000003); mtsdram(DDR0_14, 0x00000000);