3 # Stefan Bigler, Keymile AG, stefan.bigler@keymile.com
4 # Norbert Mayer, Keymile AG, norbert.mayer@keymile.com
5 # Deepak Patel, XENTECH Limited, deepak.patel@xentech.co.uk
7 # See file CREDITS for list of people who contributed to this
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.
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.
20 # You should have received a copy of the GNU General Public License
21 # along with this program; if not, write to the Free Software
22 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
25 # Refer doc/README.kwbimage for more details about how-to configure
26 # and create kirkwood boot image
28 # This configuration applies to COGE5 design (ARM-part)
29 # Two 8-Bit devices are connected on the 16-Bit bus on the same
30 # chip-select. The supported devices are
32 # MT47H256M8EB-25EIT:C
34 # Boot Media configurations
35 BOOT_FROM spi # Boot from SPI flash
37 DATA 0xFFD10000 0x01112222 # MPP Control 0 Register
38 # bit 3-0: 2, MPPSel0 SPI_CSn (1=NF_IO[2])
39 # bit 7-4: 2, MPPSel1 SPI_MOSI (1=NF_IO[3])
40 # bit 12-8: 2, MPPSel2 SPI_SCK (1=NF_IO[4])
41 # bit 15-12: 2, MPPSel3 SPI_MISO (1=NF_IO[5])
42 # bit 19-16: 1, MPPSel4 NF_IO[6]
43 # bit 23-20: 1, MPPSel5 NF_IO[7]
44 # bit 27-24: 1, MPPSel6 SYSRST_O
45 # bit 31-28: 0, MPPSel7 GPO[7]
47 DATA 0xFFD10004 0x03303300 # MPP Control 1 Register
48 # bit 3-0: 0, MPPSel8 GPIO[8] CPU_SDA bitbanged
49 # bit 7-4: 0, MPPSel9 GPIO[9] CPU_SCL bitbanged
50 # bit 12-8: 3, MPPSel10 UA0_TXD
51 # bit 15-12: 3, MPPSel11 UA0_RXD
52 # bit 19-16: 0, MPPSel12 not connected
53 # bit 23-20: 3, MPPSel13 GPIO[14]
54 # bit 27-24: 3, MPPSel14 GPIO[15]
55 # bit 31-28: 0, MPPSel15 GPIO[16] BOOT_FL_SEL (SPI-MUX Signal)
57 DATA 0xFFD10008 0x00001100 # MPP Control 2 Register
58 # bit 3-0: 0, MPPSel16 GPIO[16]
59 # bit 7-4: 0, MPPSel17 not connected
60 # bit 11-8: 1, MPPSel18 NF_IO[0]
61 # bit 15-12: 1, MPPSel19 NF_IO[1]
62 # bit 19-16: 0, MPPSel20 GPIO[20]
63 # bit 23-20: 0, MPPSel21 GPIO[21]
64 # bit 27-24: 0, MPPSel22 GPIO[22]
65 # bit 31-28: 0, MPPSel23 GPIO[23]
67 # MPP Control 3-6 Register untouched (MPP24-49)
69 DATA 0xFFD100E0 0x1B1B1B1B # IO Configuration 0 Register
70 # bit 2-0: 3, Reserved
71 # bit 5-3: 3, Reserved
73 # bit 7: 0, RGMII-pads voltage = 3.3V
74 # bit 10-8: 3, Reserved
75 # bit 13-11: 3, Reserved
77 # bit 15: 0, MPP RGMII-pads voltage = 3.3V
78 # bit 31-16 0x1B1B, Reserved
80 DATA 0xFFD20134 0x66666666 # L2 RAM Timing 0 Register
81 # bit 0-1: 2, Tag RAM RTC RAM0
82 # bit 3-2: 1, Tag RAM WTC RAM0
83 # bit 7-4: 6, Reserved
84 # bit 9-8: 2, Valid RAM RTC RAM
85 # bit 11-10: 1, Valid RAM WTC RAM
86 # bit 13-12: 2, Dirty RAM RTC RAM
87 # bit 15-14: 1, Dirty RAM WTC RAM
88 # bit 17-16: 2, Data RAM RTC RAM0
89 # bit 19-18: 1, Data RAM WTC RAM0
90 # bit 21-20: 2, Data RAM RTC RAM1
91 # bit 23-22: 1, Data RAM WTC RAM1
92 # bit 25-24: 2, Data RAM RTC RAM2
93 # bit 27-26: 1, Data RAM WTC RAM2
94 # bit 29-28: 2, Data RAM RTC RAM3
95 # bit 31-30: 1, Data RAM WTC RAM4
97 DATA 0xFFD20138 0x66666666 # L2 RAM Timing 1 Register
98 # bit 15-0: ?, Reserved
99 # bit 17-16: 2, ECC RAM RTC RAM0
100 # bit 19-18: 1, ECC RAM WTC RAM0
101 # bit 31-20: ?,Reserved
103 # NOTE: Don't write on 0x20148 , 0x2014c and 0x20154, leave them untouched!
104 # If not it could cause KW Exceptions during boot in Fast Corners/High Voltage
106 # SDRAM initalization
107 DATA 0xFFD01400 0x430004E0 # SDRAM Configuration Register
108 # bit 13-0: 0x4E0, DDR2 clks refresh rate
109 # bit 14: 0, reserved
110 # bit 15: 0, reserved
111 # bit 16: 0, CPU to Dram Write buffer policy
112 # bit 17: 0, Enable Registered DIMM or Equivalent Sampling Logic
113 # bit 19-18: 0, reserved
114 # bit 23-20: 0, reserved
115 # bit 24: 1, enable exit self refresh mode on DDR access
116 # bit 25: 1, required
117 # bit 29-26: 0, reserved
118 # bit 31-30: 1, reserved
120 DATA 0xFFD01404 0x36543000 # DDR Controller Control Low
121 # bit 3-0: 0, reserved
122 # bit 4: 0, 2T mode =addr/cmd in same cycle
123 # bit 5: 0, clk is driven during self refresh, we don't care for APX
124 # bit 6: 0, use recommended falling edge of clk for addr/cmd
125 # bit 7-11: 0, reserved
126 # bit 12-13: 1, reserved, required 1
127 # bit 14: 0, input buffer always powered up
128 # bit 17-15: 0, reserved
129 # bit 18: 1, cpu lock transaction enabled
130 # bit 19: 0, reserved
131 # bit 23-20: 5, recommended value for CL=4 and STARTBURST_DEL disabled bit31=0
132 # bit 27-24: 6, CL+1, STARTBURST sample stages, freq 200-399MHz, unbuffer DIMM
133 # bit 30-28: 3, required
134 # bit 31: 0, no additional STARTBURST delay
136 DATA 0xFFD01408 0x2202444E # DDR Timing (Low) (active cycles value +1)
137 # bit 3-0: 0xe, TRAS = 45ns -> 15 clk cycles
138 # bit 7-4: 0x4, TRCD = 15ns -> 5 clk cycles
139 # bit 11-8: 0x4, TRP = 15ns -> 5 clk cycles
140 # bit 15-12: 0x4, TWR = 15ns -> 5 clk cycles
141 # bit 19-16: 0x2, TWTR = 7,5ns -> 3 clk cycles
142 # bit 20: 0, extended TRAS msb
143 # bit 23-21: 0, reserved
144 # bit 27-24: 0x2, TRRD = 7,5ns -> 3 clk cycles
145 # bit 31-28: 0x2, TRTP = 7,5ns -> 3 clk cycles
147 DATA 0xFFD0140C 0x0000003E # DDR Timing (High)
148 # bit 6-0: 0x3E, TRFC = 195ns -> 63 clk cycles
152 # bit 31-13: 0, reserved
154 DATA 0xFFD01410 0x00000000 # DDR Address Control
155 # bit 1-0: 0, Cs0width=x8 (2 devices)
156 # bit 3-2: 0, Cs0size=2Gb
157 # bit 5-4: 0, Cs1width=nonexistent
158 # bit 7-6: 0, Cs1size =nonexistent
159 # bit 9-8: 0, Cs2width=nonexistent
160 # bit 11-10: 0, Cs2size =nonexistent
161 # bit 13-12: 0, Cs3width=nonexistent
162 # bit 15-14: 0, Cs3size =nonexistent
163 # bit 16: 0, Cs0AddrSel
164 # bit 17: 0, Cs1AddrSel
165 # bit 18: 0, Cs2AddrSel
166 # bit 19: 0, Cs3AddrSel
167 # bit 31-20: 0, required
169 DATA 0xFFD01414 0x00000000 # DDR Open Pages Control
170 # bit 0: 0, OpenPage enabled
171 # bit 31-1: 0, required
173 DATA 0xFFD01418 0x00000000 # DDR Operation
174 # bit 3-0: 0, DDR cmd
175 # bit 31-4: 0, required
177 DATA 0xFFD0141C 0x00000652 # DDR Mode
178 # bit 2-0: 2, Burst Length = 4
179 # bit 3: 0, Burst Type
180 # bit 6-4: 5, CAS Latency = 5
181 # bit 7: 0, Test mode
182 # bit 8: 0, DLL Reset
183 # bit 11-9: 3, Write recovery for auto-precharge must be 3
184 # bit 12: 0, Active power down exit time, fast exit
185 # bit 14-13: 0, reserved
186 # bit 31-15: 0, reserved
188 DATA 0xFFD01420 0x00000006 # DDR Extended Mode
189 # bit 0: 0, DDR DLL enabled
190 # bit 1: 1, DDR drive strenght reduced
191 # bit 2: 1, DDR ODT control lsb, 75ohm termination [RTT0]
192 # bit 5-3: 0, required
193 # bit 6: 0, DDR ODT control msb, 75ohm termination [RTT1]
194 # bit 9-7: 0, required
195 # bit 10: 0, differential DQS enabled
196 # bit 11: 0, required
197 # bit 12: 0, DDR output buffer enabled
198 # bit 31-13: 0 required
200 DATA 0xFFD01424 0x0000F17F # DDR Controller Control High
201 # bit 2-0: 7, required
202 # bit 3: 1, MBUS Burst Chop disabled
203 # bit 6-4: 7, required
205 # bit 8: 1, add sample stage required for > 266Mhz
206 # bit 9: 0, no half clock cycle addition to dataout
207 # bit 10: 0, 1/4 clock cycle skew enabled for addr/ctl signals
208 # bit 11: 0, 1/4 clock cycle skew disabled for write mesh
209 # bit 15-12:0xf, required
210 # bit 31-16: 0, required
212 DATA 0xFFD01428 0x00084520 # DDR2 SDRAM Timing Low
213 # bit 3-0: 0, required
214 # bit 7-4: 2, M_ODT assertion 2 cycles after read start command
215 # bit 11-8: 5, M_ODT de-assertion 5 cycles after read start command
216 # (ODT turn off delay 2,5 clk cycles)
217 # bit 15-12: 4, internal ODT time based on bit 7-4
218 # with the considered SDRAM internal delay
219 # bit 19-16: 8, internal ODT de-assertion based on bit 11-8
220 # with the considered SDRAM internal delay
221 # bit 31-20: 0, required
223 DATA 0xFFD0147c 0x00008452 # DDR2 SDRAM Timing High
224 # bit 3-0: 2, M_ODT assertion same as bit 11-8
225 # bit 7-4: 5, M_ODT de-assertion same as bit 15-12
226 # bit 11-8: 4, internal ODT assertion 2 cycles after write start command
227 # with the considered SDRAM internal delay
228 # bit 15-12: 8, internal ODT de-assertion 5 cycles after write start command
229 # with the considered SDRAM internal delay
231 DATA 0xFFD01500 0x00000000 # CS[0]n Base address to 0x0
232 # bit 23-0: 0, reserved
233 # bit 31-24: 0, CPU CS Window0 Base Address, addr bits [31:24]
235 DATA 0xFFD01504 0x1FFFFFF1 # CS[0]n Size
236 # bit 0: 1, Window enabled
237 # bit 1: 0, Write Protect disabled
238 # bit 3-2: 0, CS0 hit selected
239 # bit 23-4:ones, required
240 # bit 31-24:0x1F, Size (i.e. 512MB)
242 DATA 0xFFD0150C 0x00000000 # CS[1]n Size, window disabled
243 DATA 0xFFD01514 0x00000000 # CS[2]n Size, window disabled
244 DATA 0xFFD0151C 0x00000000 # CS[3]n Size, window disabled
246 DATA 0xFFD01494 0x00010000 # DDR ODT Control (Low)
247 # bit 3-0: 0, ODT0Rd, MODT[0] not asserted during read from DRAM CS0
248 # bit 7-4: 0, ODT0Rd, MODT[1] not asserted
249 # bit 11-8: 0, required
250 # big 15-11: 0, required
251 # bit 19-16: 1, ODT0Wr, MODT[0] asserted during write to DRAM CS0
252 # bit 23-20: 0, ODT0Wr, MODT[1] not asserted
253 # bit 27-24: 0, required
254 # bit 31-28: 0, required
256 DATA 0xFFD01498 0x00000004 # DDR ODT Control (High)
257 # bit 1-0: 0, ODT0 controlled by ODT Control (low) register above
258 # bit 3-2: 1, ODT1 never active
259 # bit 31-4: 0, required
261 DATA 0xFFD0149C 0x0000E801 # CPU ODT Control
262 # bit 3-0: 1, ODT0Rd, Internal ODT asserted during read from DRAM bank0
263 # bit 7-4: 0, ODT0Wr, Internal ODT not asserted during write to DRAM bank0
264 # bit 9-8: 0, ODTEn, controlled by ODT0Rd and ODT0Wr
265 # bit 11-10: 2, DQ_ODTSel. ODT select turned on, 75 ohm
266 # bit 13-12: 2, STARTBURST ODT buffer selected, 75 ohm
267 # bit 14: 1, STARTBURST ODT enabled
268 # bit 15: 1, Use ODT Block
270 DATA 0xFFD01480 0x00000001 # DDR Initialization Control
271 # bit 0: 1, enable DDR init upon this register write
272 # bit 31-1: 0, reserved
274 # End of Header extension