| Stefan Roese | 887e2ec | 2006-09-07 11:51:23 +0200 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2006 |
| 3 | * Stefan Roese, DENX Software Engineering, sr@denx.de. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as |
| 7 | * published by the Free Software Foundation; either version 2 of |
| 8 | * the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 18 | * MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | #include <common.h> |
| 22 | #include <asm/processor.h> |
| 23 | #include <ppc440.h> |
| 24 | |
| 25 | /************************************************************************* |
| 26 | * |
| 27 | * initdram -- 440EPx's DDR controller is a DENALI Core |
| 28 | * |
| 29 | ************************************************************************/ |
| 30 | long int initdram (int board_type) |
| 31 | { |
| 32 | #if !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) |
| 33 | volatile ulong val; |
| 34 | |
| 35 | mtsdram(DDR0_02, 0x00000000); |
| 36 | |
| Stefan Roese | 887e2ec | 2006-09-07 11:51:23 +0200 | [diff] [blame] | 37 | mtsdram(DDR0_00, 0x0000190A); |
| 38 | mtsdram(DDR0_01, 0x01000000); |
| 39 | mtsdram(DDR0_03, 0x02030602); |
| 40 | mtsdram(DDR0_04, 0x13030300); |
| 41 | mtsdram(DDR0_05, 0x0202050E); |
| 42 | mtsdram(DDR0_06, 0x0104C823); |
| 43 | mtsdram(DDR0_07, 0x000D0100); |
| 44 | mtsdram(DDR0_08, 0x02360001); |
| 45 | mtsdram(DDR0_09, 0x00011D5F); |
| 46 | mtsdram(DDR0_10, 0x00000300); |
| 47 | mtsdram(DDR0_11, 0x0027C800); |
| 48 | mtsdram(DDR0_12, 0x00000003); |
| 49 | mtsdram(DDR0_14, 0x00000000); |
| 50 | mtsdram(DDR0_17, 0x19000000); |
| 51 | mtsdram(DDR0_18, 0x19191919); |
| 52 | mtsdram(DDR0_19, 0x19191919); |
| 53 | mtsdram(DDR0_20, 0x0B0B0B0B); |
| 54 | mtsdram(DDR0_21, 0x0B0B0B0B); |
| 55 | mtsdram(DDR0_22, 0x00267F0B); |
| 56 | mtsdram(DDR0_23, 0x00000000); |
| 57 | mtsdram(DDR0_24, 0x01010002); |
| 58 | mtsdram(DDR0_26, 0x5B260181); |
| 59 | mtsdram(DDR0_27, 0x0000682B); |
| 60 | mtsdram(DDR0_28, 0x00000000); |
| 61 | mtsdram(DDR0_31, 0x00000000); |
| 62 | mtsdram(DDR0_42, 0x01000006); |
| 63 | mtsdram(DDR0_43, 0x050A0200); |
| 64 | mtsdram(DDR0_44, 0x00000005); |
| 65 | mtsdram(DDR0_02, 0x00000001); |
| 66 | |
| 67 | /* |
| 68 | * Wait for DCC master delay line to finish calibration |
| 69 | */ |
| 70 | mfsdram(DDR0_17, val); |
| 71 | while (((val >> 8) & 0x000007f) == 0) { |
| 72 | mfsdram(DDR0_17, val); |
| 73 | } |
| 74 | #endif /* #ifndef CONFIG_NAND_U_BOOT */ |
| 75 | |
| 76 | return (CFG_MBYTES_SDRAM << 20); |
| 77 | } |