1#
2# Copyright (C) 2011 Simon Guinot <sguinot@lacie.com>
3#
4# Based on Kirkwood support:
5# (C) Copyright 2009
6# Marvell Semiconductor <www.marvell.com>
7# Written-by: Prafulla Wadaskar <prafulla@marvell.com>
8#
9# See file CREDITS for list of people who contributed to this
10# project.
11#
12# This program is free software; you can redistribute it and/or
13# modify it under the terms of the GNU General Public License as
14# published by the Free Software Foundation; either version 2 of
15# the License, or (at your option) any later version.
16#
17# This program is distributed in the hope that it will be useful,
18# but WITHOUT ANY WARRANTY; without even the implied warranty of
19# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20# GNU General Public License for more details.
21#
22# Refer docs/README.kwimage for more details about how-to configure
23# and create kirkwood boot image
24#
25
26# Boot Media configurations
27BOOT_FROM	spi	# Boot from SPI flash
28
29# SOC registers configuration using bootrom header extension
30# Maximum KWBIMAGE_MAX_CONFIG configurations allowed
31
32# Configure RGMII-0 interface pad voltage to 1.8V
33DATA 0xFFD100e0 0x1B1B1B9B
34
35#Dram initalization for SINGLE x16 CL=5 @ 400MHz
36DATA 0xFFD01400 0x43000C30	# DDR Configuration register
37# bit13-0:  0xa00 (2560 DDR2 clks refresh rate)
38# bit23-14: zero
39# bit24: 1= enable exit self refresh mode on DDR access
40# bit25: 1 required
41# bit29-26: zero
42# bit31-30: 01
43
44DATA 0xFFD01404 0x38743000	# DDR Controller Control Low
45# bit 4:    0=addr/cmd in smame cycle
46# bit 5:    0=clk is driven during self refresh, we don't care for APX
47# bit 6:    0=use recommended falling edge of clk for addr/cmd
48# bit14:    0=input buffer always powered up
49# bit18:    1=cpu lock transaction enabled
50# bit23-20: 5=recommended value for CL=5 and STARTBURST_DEL disabled bit31=0
51# bit27-24: 8= CL+3, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
52# bit30-28: 3 required
53# bit31:    0=no additional STARTBURST delay
54
55DATA 0xFFD01408 0x22125451	# DDR Timing (Low) (active cycles value +1)
56# bit7-4:   TRCD
57# bit11- 8: TRP
58# bit15-12: TWR
59# bit19-16: TWTR
60# bit20:    TRAS msb
61# bit23-21: 0x0
62# bit27-24: TRRD
63# bit31-28: TRTP
64
65DATA 0xFFD0140C 0x00000A32	#  DDR Timing (High)
66# bit6-0:   TRFC
67# bit8-7:   TR2R
68# bit10-9:  TR2W
69# bit12-11: TW2W
70# bit31-13: zero required
71
72DATA 0xFFD01410 0x0000CCCC	#  DDR Address Control
73# bit1-0:   01, Cs0width=x16
74# bit3-2:   11, Cs0size=1Gb
75# bit5-4:   00, Cs2width=nonexistent
76# bit7-6:   00, Cs1size =nonexistent
77# bit9-8:   00, Cs2width=nonexistent
78# bit11-10: 00, Cs2size =nonexistent
79# bit13-12: 00, Cs3width=nonexistent
80# bit15-14: 00, Cs3size =nonexistent
81# bit16:    0,  Cs0AddrSel
82# bit17:    0,  Cs1AddrSel
83# bit18:    0,  Cs2AddrSel
84# bit19:    0,  Cs3AddrSel
85# bit31-20: 0 required
86
87DATA 0xFFD01414 0x00000000	#  DDR Open Pages Control
88# bit0:    0,  OpenPage enabled
89# bit31-1: 0 required
90
91DATA 0xFFD01418 0x00000000	#  DDR Operation
92# bit3-0:   0x0, DDR cmd
93# bit31-4:  0 required
94
95DATA 0xFFD0141C 0x00000662	#  DDR Mode
96# bit2-0:   2, BurstLen=2 required
97# bit3:     0, BurstType=0 required
98# bit6-4:   4, CL=5
99# bit7:     0, TestMode=0 normal
100# bit8:     0, DLL reset=0 normal
101# bit11-9:  6, auto-precharge write recovery ????????????
102# bit12:    0, PD must be zero
103# bit31-13: 0 required
104
105DATA 0xFFD01420 0x00000044	#  DDR Extended Mode
106# bit0:    0,  DDR DLL enabled
107# bit1:    1,  DDR drive strenght reduced
108# bit2:    1,  DDR ODT control lsd enabled
109# bit5-3:  000, required
110# bit6:    1,  DDR ODT control msb, enabled
111# bit9-7:  000, required
112# bit10:   0,  differential DQS enabled
113# bit11:   0, required
114# bit12:   0, DDR output buffer enabled
115# bit31-13: 0 required
116
117DATA 0xFFD01424 0x0000F17F	#  DDR Controller Control High
118# bit2-0:  111, required
119# bit3  :  1  , MBUS Burst Chop disabled
120# bit6-4:  111, required
121# bit7  :  1  , D2P Latency enabled
122# bit8  :  1  , add writepath sample stage, must be 1 for DDR freq >= 300MHz
123# bit9  :  0  , no half clock cycle addition to dataout
124# bit10 :  0  , 1/4 clock cycle skew enabled for addr/ctl signals
125# bit11 :  0  , 1/4 clock cycle skew disabled for write mesh
126# bit15-12: 1111 required
127# bit31-16: 0    required
128
129DATA 0xFFD01428 0x00096630	# DDR2 ODT Read Timing (default values)
130DATA 0xFFD0147C 0x00009663	# DDR2 ODT Write Timing (default values)
131
132DATA 0xFFD01500 0x00000000	# CS[0]n Base address to 0x0
133DATA 0xFFD01504 0x0FFFFFF1	# CS[0]n Size
134# bit0:    1,  Window enabled
135# bit1:    0,  Write Protect disabled
136# bit3-2:  00, CS0 hit selected
137# bit23-4: ones, required
138# bit31-24: 0x07, Size (i.e. 128MB)
139
140DATA 0xFFD0150C 0x00000000	# CS[1]n Size, window disabled
141DATA 0xFFD01514 0x00000000	# CS[2]n Size, window disabled
142DATA 0xFFD0151C 0x00000000	# CS[3]n Size, window disabled
143
144DATA 0xFFD01494 0x00010000	#  DDR ODT Control (Low)
145# bit3-0:  1, ODT0Rd, MODT[0] asserted during read from DRAM CS0
146# bit19-16:1, ODT0Wr, MODT[0] asserted during write to DRAM CS0
147
148DATA 0xFFD01498 0x00000000	#  DDR ODT Control (High)
149# bit1-0:  00, ODT0 controlled by ODT Control (low) register above
150# bit3-2:  01, ODT1 active NEVER!
151# bit31-4: zero, required
152
153DATA 0xFFD0149C 0x0000E40F	# CPU ODT Control
154# bit3-0:  1, ODT0Rd, Internal ODT asserted during read from DRAM bank0
155# bit7-4:  1, ODT0Wr, Internal ODT asserted during write to DRAM bank0
156# bit11-10:1, DQ_ODTSel. ODT select turned on
157
158DATA 0xFFD01480 0x00000001	# DDR Initialization Control
159#bit0=1, enable DDR init upon this register write
160
161# End of Header extension
162DATA 0x0 0x0
163