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- #
- # (C) Copyright 2009
- # Marvell Semiconductor <www.marvell.com>
- # Written-by: Prafulla Wadaskar <prafulla@marvell.com>
- #
- # See file CREDITS for list of people who contributed to this
- # project.
- #
- # This program is free software; you can redistribute it and/or
- # modify it under the terms of the GNU General Public License as
- # published by the Free Software Foundation; either version 2 of
- # the License, or (at your option) any later version.
- #
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with this program; if not, write to the Free Software
- # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- # MA 02110-1301 USA
- #
- # Refer docs/README.kwimage for more details about how-to configure
- # and create kirkwood boot image
- #
- # Boot Media configurations
- BOOT_FROM spi # Boot from SPI flash
- # SOC registers configuration using bootrom header extension
- # Maximum KWBIMAGE_MAX_CONFIG configurations allowed
- # Configure RGMII-0 interface pad voltage to 1.8V
- DATA 0xFFD100e0 0x1b1b1b9b
- #Dram initalization for SINGLE x16 CL=5 @ 400MHz
- DATA 0xFFD01400 0x43000a00 # DDR Configuration register
- # bit13-0: 0xa00 (2560 DDR2 clks refresh rate)
- # bit23-14: zero
- # bit24: 1= enable exit self refresh mode on DDR access
- # bit25: 1 required
- # bit29-26: zero
- # bit31-30: 01
- DATA 0xFFD01404 0x38543000 # DDR Controller Control Low
- # bit 4: 0=addr/cmd in smame cycle
- # bit 5: 0=clk is driven during self refresh, we don't care for APX
- # bit 6: 0=use recommended falling edge of clk for addr/cmd
- # bit14: 0=input buffer always powered up
- # bit18: 1=cpu lock transaction enabled
- # bit23-20: 5=recommended value for CL=5 and STARTBURST_DEL disabled bit31=0
- # bit27-24: 8= CL+3, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
- # bit30-28: 3 required
- # bit31: 0=no additional STARTBURST delay
- DATA 0xFFD01408 0x2202433D # DDR Timing (Low) (active cycles value +1)
- # bit3-0: TRAS lsbs
- # bit7-4: TRCD
- # bit11- 8: TRP
- # bit15-12: TWR
- # bit19-16: TWTR
- # bit20: TRAS msb
- # bit23-21: 0x0
- # bit27-24: TRRD
- # bit31-28: TRTP
- DATA 0xFFD0140C 0x0000002A # DDR Timing (High)
- # bit6-0: TRFC
- # bit8-7: TR2R
- # bit10-9: TR2W
- # bit12-11: TW2W
- # bit31-13: zero required
- DATA 0xFFD01410 0x0000000D # DDR Address Control
- # bit1-0: 01, Cs0width=x16
- # bit3-2: 11, Cs0size=1Gb
- # bit5-4: 00, Cs2width=nonexistent
- # bit7-6: 00, Cs1size =nonexistent
- # bit9-8: 00, Cs2width=nonexistent
- # bit11-10: 00, Cs2size =nonexistent
- # bit13-12: 00, Cs3width=nonexistent
- # bit15-14: 00, Cs3size =nonexistent
- # bit16: 0, Cs0AddrSel
- # bit17: 0, Cs1AddrSel
- # bit18: 0, Cs2AddrSel
- # bit19: 0, Cs3AddrSel
- # bit31-20: 0 required
- DATA 0xFFD01414 0x00000000 # DDR Open Pages Control
- # bit0: 0, OpenPage enabled
- # bit31-1: 0 required
- DATA 0xFFD01418 0x00000000 # DDR Operation
- # bit3-0: 0x0, DDR cmd
- # bit31-4: 0 required
- DATA 0xFFD0141C 0x00000C52 # DDR Mode
- # bit2-0: 2, BurstLen=2 required
- # bit3: 0, BurstType=0 required
- # bit6-4: 4, CL=5
- # bit7: 0, TestMode=0 normal
- # bit8: 0, DLL reset=0 normal
- # bit11-9: 6, auto-precharge write recovery ????????????
- # bit12: 0, PD must be zero
- # bit31-13: 0 required
- DATA 0xFFD01420 0x00000046 # DDR Extended Mode
- # bit0: 0, DDR DLL enabled
- # bit1: 1, DDR drive strenght reduced
- # bit2: 1, DDR ODT control lsd enabled
- # bit5-3: 000, required
- # bit6: 1, DDR ODT control msb, enabled
- # bit9-7: 000, required
- # bit10: 0, differential DQS enabled
- # bit11: 0, required
- # bit12: 0, DDR output buffer enabled
- # bit31-13: 0 required
- DATA 0xFFD01424 0x0000F1FF # DDR Controller Control High
- # bit2-0: 111, required
- # bit3 : 1 , MBUS Burst Chop disabled
- # bit6-4: 111, required
- # bit7 : 1 , D2P Latency enabled
- # bit8 : 1 , add writepath sample stage, must be 1 for DDR freq >= 300MHz
- # bit9 : 0 , no half clock cycle addition to dataout
- # bit10 : 0 , 1/4 clock cycle skew enabled for addr/ctl signals
- # bit11 : 0 , 1/4 clock cycle skew disabled for write mesh
- # bit15-12: 1111 required
- # bit31-16: 0 required
- DATA 0xFFD01428 0x00085520 # DDR2 ODT Read Timing (default values)
- DATA 0xFFD0147C 0x00008552 # DDR2 ODT Write Timing (default values)
- DATA 0xFFD01500 0x00000000 # CS[0]n Base address to 0x0
- DATA 0xFFD01504 0x07FFFFF1 # CS[0]n Size
- # bit0: 1, Window enabled
- # bit1: 0, Write Protect disabled
- # bit3-2: 00, CS0 hit selected
- # bit23-4: ones, required
- # bit31-24: 0x07, Size (i.e. 128MB)
- DATA 0xFFD0150C 0x00000000 # CS[1]n Size, window disabled
- DATA 0xFFD01514 0x00000000 # CS[2]n Size, window disabled
- DATA 0xFFD0151C 0x00000000 # CS[3]n Size, window disabled
- DATA 0xFFD01494 0x00010001 # DDR ODT Control (Low)
- # bit3-0: 1, ODT0Rd, MODT[0] asserted during read from DRAM CS0
- # bit19-16:1, ODT0Wr, MODT[0] asserted during write to DRAM CS0
- DATA 0xFFD01498 0x00000000 # DDR ODT Control (High)
- # bit1-0: 00, ODT0 controlled by ODT Control (low) register above
- # bit3-2: 01, ODT1 active NEVER!
- # bit31-4: zero, required
- DATA 0xFFD0149C 0x0000E811 # CPU ODT Control
- # bit3-0: 1, ODT0Rd, Internal ODT asserted during read from DRAM bank0
- # bit7-4: 1, ODT0Wr, Internal ODT asserted during write to DRAM bank0
- # bit11-10:1, DQ_ODTSel. ODT select turned on
- DATA 0xFFD01480 0x00000001 # DDR Initialization Control
- #bit0=1, enable DDR init upon this register write
- # End of Header extension
- DATA 0x0 0x0
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