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83d290c5 1# SPDX-License-Identifier: GPL-2.0+
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2#
3# Copyright (C) 2011-2012
4# Gerald Kerma <dreagle@doukki.net>
5# Simon Baatz <gmbnomis@gmail.com>
3fdf7596 6# Luka Perkov <luka@openwrt.org>
b1e6c4c3 7# Refer doc/README.kwbimage for more details about how-to configure
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8# and create kirkwood boot image
9#
10
11# Boot Media configurations
49413ea3 12BOOT_FROM nand
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13NAND_ECC_MODE default
14NAND_PAGE_SIZE 0x0800
15
16# SOC registers configuration using bootrom header extension
17# Maximum KWBIMAGE_MAX_CONFIG configurations allowed
18
19# Configure RGMII-0 interface pad voltage to 1.8V
20DATA 0xffd100e0 0x1b1b1b9b
21
49413ea3 22# Dram initalization for SINGLE x16 CL=5 @ 400MHz
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23DATA 0xffd01400 0x43000c30 # DDR Configuration register
24# bit13-0: 0xc30, (3120 DDR2 clks refresh rate)
25# bit23-14: 0x0,
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26# bit24: 0x1, enable exit self refresh mode on DDR access
27# bit25: 0x1, required
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28# bit29-26: 0x0,
29# bit31-30: 0x1,
30
31DATA 0xffd01404 0x37543000 # DDR Controller Control Low
32# bit4: 0x0, addr/cmd in smame cycle
33# bit5: 0x0, clk is driven during self refresh, we don't care for APX
34# bit6: 0x0, use recommended falling edge of clk for addr/cmd
35# bit14: 0x0, input buffer always powered up
36# bit18: 0x1, cpu lock transaction enabled
37# bit23-20: 0x5, recommended value for CL=5 and STARTBURST_DEL disabled bit31=0
38# bit27-24: 0x7, CL+2, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
39# bit30-28: 0x3, required
40# bit31: 0x0, no additional STARTBURST delay
41
42DATA 0xffd01408 0x22125451 # DDR Timing (Low) (active cycles value +1)
43# bit3-0: TRAS lsbs
44# bit7-4: TRCD
45# bit11-8: TRP
46# bit15-12: TWR
47# bit19-16: TWTR
48# bit20: TRAS msb
49# bit23-21: 0x0
50# bit27-24: TRRD
51# bit31-28: TRTP
52
53DATA 0xffd0140c 0x00000a33 # DDR Timing (High)
54# bit6-0: TRFC
55# bit8-7: TR2R
56# bit10-9: TR2W
57# bit12-11: TW2W
58# bit31-13: 0x0, required
59
60DATA 0xffd01410 0x0000000c # DDR Address Control
61# bit1-0: 00, Cs0width (x8)
62# bit3-2: 11, Cs0size (1Gb)
63# bit5-4: 00, Cs1width (x8)
64# bit7-6: 11, Cs1size (1Gb)
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65# bit9-8: 00, Cs2width (nonexistent)
66# bit11-10: 00, Cs2size (nonexistent)
67# bit13-12: 00, Cs3width (nonexistent)
68# bit15-14: 00, Cs3size (nonexistent)
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69# bit16: 0, Cs0AddrSel
70# bit17: 0, Cs1AddrSel
71# bit18: 0, Cs2AddrSel
72# bit19: 0, Cs3AddrSel
73# bit31-20: 0x0, required
74
75DATA 0xffd01414 0x00000000 # DDR Open Pages Control
76# bit0: 0, OpenPage enabled
77# bit31-1: 0x0, required
78
79DATA 0xffd01418 0x00000000 # DDR Operation
80# bit3-0: 0x0, DDR cmd
81# bit31-4: 0x0, required
82
83DATA 0xffd0141c 0x00000c52 # DDR Mode
84# bit2-0: 0x2, BurstLen=2 required
85# bit3: 0x0, BurstType=0 required
86# bit6-4: 0x4, CL=5
87# bit7: 0x0, TestMode=0 normal
88# bit8: 0x0, DLL reset=0 normal
49413ea3 89# bit11-9: 0x6, auto-precharge write recovery
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90# bit12: 0x0, PD must be zero
91# bit31-13: 0x0, required
92
93DATA 0xffd01420 0x00000040 # DDR Extended Mode
94# bit0: 0, DDR DLL enabled
95# bit1: 0, DDR drive strenght normal
96# bit2: 1, DDR ODT control lsd (disabled)
97# bit5-3: 0x0, required
98# bit6: 0, DDR ODT control msb, (disabled)
99# bit9-7: 0x0, required
100# bit10: 0, differential DQS enabled
101# bit11: 0, required
102# bit12: 0, DDR output buffer enabled
103# bit31-13: 0x0, required
104
105DATA 0xffd01424 0x0000f17f # DDR Controller Control High
106# bit2-0: 0x7, required
107# bit3: 0x1, MBUS Burst Chop disabled
108# bit6-4: 0x7, required
109# bit7: 0x0,
110# bit8: 0x1, add writepath sample stage, must be 1 for DDR freq >= 300MHz
111# bit9: 0x0, no half clock cycle addition to dataout
112# bit10: 0x0, 1/4 clock cycle skew enabled for addr/ctl signals
113# bit11: 0x0, 1/4 clock cycle skew disabled for write mesh
114# bit15-12: 0xf, required
115# bit31-16: 0, required
116
117DATA 0xffd01428 0x00085520 # DDR2 ODT Read Timing (default values)
118DATA 0xffd0147c 0x00008552 # DDR2 ODT Write Timing (default values)
119
120DATA 0xffd01500 0x00000000 # CS[0]n Base address to 0x0
121DATA 0xffd01504 0x0ffffff1 # CS[0]n Size
122# bit0: 0x1, Window enabled
123# bit1: 0x0, Write Protect disabled
124# bit3-2: 0x0, CS0 hit selected
125# bit23-4: 0xfffff, required
126# bit31-24: 0x0f, Size (i.e. 256MB)
127
128DATA 0xffd01508 0x10000000 # CS[1]n Base address to 256Mb
129DATA 0xffd0150c 0x00000000 # CS[1]n Size, window disabled
130
131DATA 0xffd01514 0x00000000 # CS[2]n Size, window disabled
132DATA 0xffd0151c 0x00000000 # CS[3]n Size, window disabled
133
134DATA 0xffd01494 0x00030000 # DDR ODT Control (Low)
135# bit3-0: ODT0Rd, MODT[0] asserted during read from DRAM CS1
136# bit7-4: ODT0Rd, MODT[0] asserted during read from DRAM CS0
137# bit19-16:2, ODT0Wr, MODT[0] asserted during write to DRAM CS1
138# bit23-20:1, ODT0Wr, MODT[0] asserted during write to DRAM CS0
139
140DATA 0xffd01498 0x00000000 # DDR ODT Control (High)
141# bit1-0: 0x0, ODT0 controlled by ODT Control (low) register above
142# bit3-2: 0x1, ODT1 active NEVER!
143# bit31-4: 0x0, required
144
145DATA 0xffd0149c 0x0000e803 # CPU ODT Control
146DATA 0xffd01480 0x00000001 # DDR Initialization Control
147# bit0: 0x1, enable DDR init upon this register write
148
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149DATA 0xffd20134 0x66666666 # L2 RAM Timing 0 Register
150DATA 0xffd20138 0x66666666 # L2 RAM Timing 1 Register
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151
152# End of Header extension
153DATA 0x0 0x0