146 lines
4.5 KiB
INI
146 lines
4.5 KiB
INI
# SPDX-License-Identifier: GPL-2.0+
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#
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# (C) Copyright 2011
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# Jason Cooper <u-boot@lakedaemon.net>
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#
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# Based on work by:
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# Marvell Semiconductor <www.marvell.com>
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# Written-by: Siddarth Gore <gores@marvell.com>
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# Refer doc/README.kwbimage for more details about how-to configure
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# and create kirkwood boot image
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#
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# Boot Media configurations
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BOOT_FROM spi
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# SOC registers configuration using bootrom header extension
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# Maximum KWBIMAGE_MAX_CONFIG configurations allowed
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# Configure RGMII-0/1 interface pad voltage to 1.8V
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DATA 0xFFD100e0 0x1b1b9b9b
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#Dram initalization for SINGLE x16 CL=5 @ 400MHz
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DATA 0xFFD01400 0x43000c30 # DDR Configuration register
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# bit13-0: 0xc30 (3120 DDR2 clks refresh rate)
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# bit23-14: zero
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# bit24: 1= enable exit self refresh mode on DDR access
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# bit25: 1 required
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# bit29-26: zero
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# bit31-30: 01
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DATA 0xFFD01404 0x37543000 # DDR Controller Control Low
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# bit 4: 0=addr/cmd in smame cycle
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# bit 5: 0=clk is driven during self refresh, we don't care for APX
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# bit 6: 0=use recommended falling edge of clk for addr/cmd
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# bit14: 0=input buffer always powered up
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# bit18: 1=cpu lock transaction enabled
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# bit23-20: 5=recommended value for CL=5 and STARTBURST_DEL disabled bit31=0
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# bit27-24: 7= CL+2, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
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# bit30-28: 3 required
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# bit31: 0=no additional STARTBURST delay
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DATA 0xFFD01408 0x22125451 # DDR Timing (Low) (active cycles value +1)
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# bit3-0: TRAS lsbs
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# bit7-4: TRCD
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# bit11- 8: TRP
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# bit15-12: TWR
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# bit19-16: TWTR
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# bit20: TRAS msb
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# bit23-21: 0x0
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# bit27-24: TRRD
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# bit31-28: TRTP
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DATA 0xFFD0140C 0x00000a33 # DDR Timing (High)
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# bit6-0: TRFC
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# bit8-7: TR2R
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# bit10-9: TR2W
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# bit12-11: TW2W
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# bit31-13: zero required
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DATA 0xFFD01410 0x000000cc # DDR Address Control
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# bit1-0: 01, Cs0width=x8
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# bit3-2: 10, Cs0size=1Gb
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# bit5-4: 01, Cs1width=x8
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# bit7-6: 10, Cs1size=1Gb
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# bit9-8: 00, Cs2width=nonexistent
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# bit11-10: 00, Cs2size =nonexistent
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# bit13-12: 00, Cs3width=nonexistent
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# bit15-14: 00, Cs3size =nonexistent
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# bit16: 0, Cs0AddrSel
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# bit17: 0, Cs1AddrSel
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# bit18: 0, Cs2AddrSel
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# bit19: 0, Cs3AddrSel
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# bit31-20: 0 required
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DATA 0xFFD01414 0x00000000 # DDR Open Pages Control
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# bit0: 0, OpenPage enabled
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# bit31-1: 0 required
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DATA 0xFFD01418 0x00000000 # DDR Operation
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# bit3-0: 0x0, DDR cmd
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# bit31-4: 0 required
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DATA 0xFFD0141C 0x00000C52 # DDR Mode
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# bit2-0: 2, BurstLen=2 required
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# bit3: 0, BurstType=0 required
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# bit6-4: 4, CL=5
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# bit7: 0, TestMode=0 normal
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# bit8: 0, DLL reset=0 normal
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# bit11-9: 6, auto-precharge write recovery ????????????
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# bit12: 0, PD must be zero
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# bit31-13: 0 required
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DATA 0xFFD01420 0x00000040 # DDR Extended Mode
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# bit0: 0, DDR DLL enabled
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# bit1: 0, DDR drive strenght normal
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# bit2: 0, DDR ODT control lsd (disabled)
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# bit5-3: 000, required
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# bit6: 1, DDR ODT control msb, (disabled)
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# bit9-7: 000, required
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# bit10: 0, differential DQS enabled
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# bit11: 0, required
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# bit12: 0, DDR output buffer enabled
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# bit31-13: 0 required
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DATA 0xFFD01424 0x0000F17F # DDR Controller Control High
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# bit2-0: 111, required
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# bit3 : 1 , MBUS Burst Chop disabled
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# bit6-4: 111, required
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# bit7 : 0
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# bit8 : 1 , add writepath sample stage, must be 1 for DDR freq >= 300MHz
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# bit9 : 0 , no half clock cycle addition to dataout
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# bit10 : 0 , 1/4 clock cycle skew enabled for addr/ctl signals
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# bit11 : 0 , 1/4 clock cycle skew disabled for write mesh
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# bit15-12: 1111 required
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# bit31-16: 0 required
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DATA 0xFFD01428 0x00085520 # DDR2 ODT Read Timing (default values)
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DATA 0xFFD0147C 0x00008552 # DDR2 ODT Write Timing (default values)
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DATA 0xFFD01500 0x00000000 # CS[0]n Base address to 0x0
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DATA 0xFFD01504 0x0FFFFFF1 # CS[0]n Size
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# bit0: 1, Window enabled
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# bit1: 0, Write Protect disabled
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# bit3-2: 00, CS0 hit selected
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# bit23-4: ones, required
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# bit31-24: 0x0F, Size (i.e. 256MB)
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DATA 0xFFD01508 0x10000000 # CS[1]n Base address to 256Mb
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DATA 0xFFD0150C 0x0FFFFFF5 # CS[1]n Size 256Mb Window enabled for CS1
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DATA 0xFFD01514 0x00000000 # CS[2]n Size, window disabled
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DATA 0xFFD0151C 0x00000000 # CS[3]n Size, window disabled
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DATA 0xFFD01494 0x00030000 # DDR ODT Control (Low)
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DATA 0xFFD01498 0x00000000 # DDR ODT Control (High)
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# bit1-0: 00, ODT0 controlled by ODT Control (low) register above
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# bit3-2: 01, ODT1 active NEVER!
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# bit31-4: zero, required
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DATA 0xFFD0149C 0x0000E803 # CPU ODT Control
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DATA 0xFFD01480 0x00000001 # DDR Initialization Control
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#bit0=1, enable DDR init upon this register write
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# End of Header extension
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DATA 0x0 0x0
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