Luka Perkov | e5841e1 | 2012-04-17 09:22:17 +0000 | [diff] [blame] | 1 | # |
| 2 | # Copyright (C) 2011-2012 |
| 3 | # Gerald Kerma <dreagle@doukki.net> |
| 4 | # Simon Baatz <gmbnomis@gmail.com> |
| 5 | # Luka Perkov <uboot@lukaperkov.net> |
| 6 | # |
| 7 | # See file CREDITS for list of people who contributed to this |
| 8 | # project. |
| 9 | # |
| 10 | # This program is free software; you can redistribute it and/or |
| 11 | # modify it under the terms of the GNU General Public License as |
| 12 | # published by the Free Software Foundation; either version 2 of |
| 13 | # the License, or (at your option) any later version. |
| 14 | # |
| 15 | # This program is distributed in the hope that it will be useful, |
| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | # GNU General Public License for more details. |
| 19 | # |
| 20 | # You should have received a copy of the GNU General Public License |
| 21 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 22 | # |
| 23 | # Refer docs/README.kwimage for more details about how-to configure |
| 24 | # and create kirkwood boot image |
| 25 | # |
| 26 | |
| 27 | # Boot Media configurations |
| 28 | BOOT_FROM nand # change from nand to uart if building UART image |
| 29 | NAND_ECC_MODE default |
| 30 | NAND_PAGE_SIZE 0x0800 |
| 31 | |
| 32 | # SOC registers configuration using bootrom header extension |
| 33 | # Maximum KWBIMAGE_MAX_CONFIG configurations allowed |
| 34 | |
| 35 | # Configure RGMII-0 interface pad voltage to 1.8V |
| 36 | DATA 0xffd100e0 0x1b1b1b9b |
| 37 | |
| 38 | #Dram initalization for SINGLE x16 CL=5 @ 400MHz |
| 39 | DATA 0xffd01400 0x43000c30 # DDR Configuration register |
| 40 | # bit13-0: 0xc30, (3120 DDR2 clks refresh rate) |
| 41 | # bit23-14: 0x0, |
| 42 | # bit24: 0x1, enable exit self refresh mode on DDR access |
| 43 | # bit25: 0x1, required |
| 44 | # bit29-26: 0x0, |
| 45 | # bit31-30: 0x1, |
| 46 | |
| 47 | DATA 0xffd01404 0x37543000 # DDR Controller Control Low |
| 48 | # bit4: 0x0, addr/cmd in smame cycle |
| 49 | # bit5: 0x0, clk is driven during self refresh, we don't care for APX |
| 50 | # bit6: 0x0, use recommended falling edge of clk for addr/cmd |
| 51 | # bit14: 0x0, input buffer always powered up |
| 52 | # bit18: 0x1, cpu lock transaction enabled |
| 53 | # bit23-20: 0x5, recommended value for CL=5 and STARTBURST_DEL disabled bit31=0 |
| 54 | # bit27-24: 0x7, CL+2, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM |
| 55 | # bit30-28: 0x3, required |
| 56 | # bit31: 0x0, no additional STARTBURST delay |
| 57 | |
| 58 | DATA 0xffd01408 0x22125451 # DDR Timing (Low) (active cycles value +1) |
| 59 | # bit3-0: TRAS lsbs |
| 60 | # bit7-4: TRCD |
| 61 | # bit11-8: TRP |
| 62 | # bit15-12: TWR |
| 63 | # bit19-16: TWTR |
| 64 | # bit20: TRAS msb |
| 65 | # bit23-21: 0x0 |
| 66 | # bit27-24: TRRD |
| 67 | # bit31-28: TRTP |
| 68 | |
| 69 | DATA 0xffd0140c 0x00000a33 # DDR Timing (High) |
| 70 | # bit6-0: TRFC |
| 71 | # bit8-7: TR2R |
| 72 | # bit10-9: TR2W |
| 73 | # bit12-11: TW2W |
| 74 | # bit31-13: 0x0, required |
| 75 | |
| 76 | DATA 0xffd01410 0x0000000c # DDR Address Control |
| 77 | # bit1-0: 00, Cs0width (x8) |
| 78 | # bit3-2: 11, Cs0size (1Gb) |
| 79 | # bit5-4: 00, Cs1width (x8) |
| 80 | # bit7-6: 11, Cs1size (1Gb) |
| 81 | # bit9-8: 00, Cs2width (nonexistent |
| 82 | # bit11-10: 00, Cs2size (nonexistent |
| 83 | # bit13-12: 00, Cs3width (nonexistent |
| 84 | # bit15-14: 00, Cs3size (nonexistent |
| 85 | # bit16: 0, Cs0AddrSel |
| 86 | # bit17: 0, Cs1AddrSel |
| 87 | # bit18: 0, Cs2AddrSel |
| 88 | # bit19: 0, Cs3AddrSel |
| 89 | # bit31-20: 0x0, required |
| 90 | |
| 91 | DATA 0xffd01414 0x00000000 # DDR Open Pages Control |
| 92 | # bit0: 0, OpenPage enabled |
| 93 | # bit31-1: 0x0, required |
| 94 | |
| 95 | DATA 0xffd01418 0x00000000 # DDR Operation |
| 96 | # bit3-0: 0x0, DDR cmd |
| 97 | # bit31-4: 0x0, required |
| 98 | |
| 99 | DATA 0xffd0141c 0x00000c52 # DDR Mode |
| 100 | # bit2-0: 0x2, BurstLen=2 required |
| 101 | # bit3: 0x0, BurstType=0 required |
| 102 | # bit6-4: 0x4, CL=5 |
| 103 | # bit7: 0x0, TestMode=0 normal |
| 104 | # bit8: 0x0, DLL reset=0 normal |
| 105 | # bit11-9: 0x6, auto-precharge write recovery ???????????? |
| 106 | # bit12: 0x0, PD must be zero |
| 107 | # bit31-13: 0x0, required |
| 108 | |
| 109 | DATA 0xffd01420 0x00000040 # DDR Extended Mode |
| 110 | # bit0: 0, DDR DLL enabled |
| 111 | # bit1: 0, DDR drive strenght normal |
| 112 | # bit2: 1, DDR ODT control lsd (disabled) |
| 113 | # bit5-3: 0x0, required |
| 114 | # bit6: 0, DDR ODT control msb, (disabled) |
| 115 | # bit9-7: 0x0, required |
| 116 | # bit10: 0, differential DQS enabled |
| 117 | # bit11: 0, required |
| 118 | # bit12: 0, DDR output buffer enabled |
| 119 | # bit31-13: 0x0, required |
| 120 | |
| 121 | DATA 0xffd01424 0x0000f17f # DDR Controller Control High |
| 122 | # bit2-0: 0x7, required |
| 123 | # bit3: 0x1, MBUS Burst Chop disabled |
| 124 | # bit6-4: 0x7, required |
| 125 | # bit7: 0x0, |
| 126 | # bit8: 0x1, add writepath sample stage, must be 1 for DDR freq >= 300MHz |
| 127 | # bit9: 0x0, no half clock cycle addition to dataout |
| 128 | # bit10: 0x0, 1/4 clock cycle skew enabled for addr/ctl signals |
| 129 | # bit11: 0x0, 1/4 clock cycle skew disabled for write mesh |
| 130 | # bit15-12: 0xf, required |
| 131 | # bit31-16: 0, required |
| 132 | |
| 133 | DATA 0xffd01428 0x00085520 # DDR2 ODT Read Timing (default values) |
| 134 | DATA 0xffd0147c 0x00008552 # DDR2 ODT Write Timing (default values) |
| 135 | |
| 136 | DATA 0xffd01500 0x00000000 # CS[0]n Base address to 0x0 |
| 137 | DATA 0xffd01504 0x0ffffff1 # CS[0]n Size |
| 138 | # bit0: 0x1, Window enabled |
| 139 | # bit1: 0x0, Write Protect disabled |
| 140 | # bit3-2: 0x0, CS0 hit selected |
| 141 | # bit23-4: 0xfffff, required |
| 142 | # bit31-24: 0x0f, Size (i.e. 256MB) |
| 143 | |
| 144 | DATA 0xffd01508 0x10000000 # CS[1]n Base address to 256Mb |
| 145 | DATA 0xffd0150c 0x00000000 # CS[1]n Size, window disabled |
| 146 | |
| 147 | DATA 0xffd01514 0x00000000 # CS[2]n Size, window disabled |
| 148 | DATA 0xffd0151c 0x00000000 # CS[3]n Size, window disabled |
| 149 | |
| 150 | DATA 0xffd01494 0x00030000 # DDR ODT Control (Low) |
| 151 | # bit3-0: ODT0Rd, MODT[0] asserted during read from DRAM CS1 |
| 152 | # bit7-4: ODT0Rd, MODT[0] asserted during read from DRAM CS0 |
| 153 | # bit19-16:2, ODT0Wr, MODT[0] asserted during write to DRAM CS1 |
| 154 | # bit23-20:1, ODT0Wr, MODT[0] asserted during write to DRAM CS0 |
| 155 | |
| 156 | DATA 0xffd01498 0x00000000 # DDR ODT Control (High) |
| 157 | # bit1-0: 0x0, ODT0 controlled by ODT Control (low) register above |
| 158 | # bit3-2: 0x1, ODT1 active NEVER! |
| 159 | # bit31-4: 0x0, required |
| 160 | |
| 161 | DATA 0xffd0149c 0x0000e803 # CPU ODT Control |
| 162 | DATA 0xffd01480 0x00000001 # DDR Initialization Control |
| 163 | # bit0: 0x1, enable DDR init upon this register write |
| 164 | |
| 165 | DATA 0xFFD20134 0x66666666 # L2 RAM Timing 0 Register |
| 166 | DATA 0xFFD20138 0x66666666 # L2 RAM Timing 1 Register |
| 167 | |
| 168 | # End of Header extension |
| 169 | DATA 0x0 0x0 |