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#
# Copyright (C) 2011
# Stefan Herbrechtsmeier <stefan@code.herbrechtsmeier.net>
#
# Based on Kirkwood support:
# (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 nand
NAND_ECC_MODE default
NAND_PAGE_SIZE 0x0800
# 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 0x43000c30 # DDR Configuration register
# bit13-0: 0xc30, 3120 DDR2 clks refresh rate
# bit23-14: 0 required
# bit24: 1, enable exit self refresh mode on DDR access
# bit25: 1 required
# bit29-26: 0 required
# bit31-30: 0b01 required
DATA 0xFFD01404 0x39543000 # DDR Controller Control Low
# bit3-0: 0 required
# bit4: 0, addr/cmd in smame cycle
# bit5: 0, clk is driven during self refresh, we don't care for APX
# bit6: 0, use recommended falling edge of clk for addr/cmd
# bit11-7: 0 required
# bit12: 1 required
# bit13: 1 required
# bit14: 0, input buffer always powered up
# bit17-15: 0 required
# bit18: 1, cpu lock transaction enabled
# bit19: 0 required
# bit23-20: 5, recommended value for CL=5 and STARTBURST_DEL disabled bit31=0
# bit27-24: 9, CL+4, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
# bit30-28: 3 required
# bit31: 0, no additional STARTBURST delay
DATA 0xFFD01408 0x22125451 # DDR Timing (Low)
# bit3-0: 1, 18 cycle tRAS (tRAS[3-0])
# bit7-4: 5, 6 cycle tRCD
# bit11-8: 4, 5 cyle tRP
# bit15-12: 5, 6 cyle tWR
# bit19-16: 2, 3 cyle tWTR
# bit20: 1, 18 cycle tRAS (tRAS[4])
# bit23-21: 0 required
# bit27-24: 2, 3 cycle tRRD
# bit31-28: 2, 3 cyle tRTP
DATA 0xFFD0140C 0x00000833 # DDR Timing (High)
# bit6-0: 0x33, 33 cycle tRFC
# bit8-7: 0, 1 cycle tR2R
# bit10-9: 0, 1 cyle tR2W
# bit12-11: 1, 2 cylce tW2W
# bit31-13: 0 required
DATA 0xFFD01410 0x0000000c # DDR Address Control
# bit1-0: 0, Cs0width=x8
# bit3-2: 3, Cs0size=1Gb
# bit5-4: 0, Cs1width=nonexistent
# bit7-6: 0, Cs1size=nonexistent
# bit9-8: 0, Cs2width=nonexistent
# bit11-10: 0, Cs2size=nonexistent
# bit13-12: 0, Cs3width=nonexistent
# bit15-14: 0, 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, OPEn=OpenPage enabled
# bit31-1: 0 required
DATA 0xFFD01418 0x00000000 # DDR Operation
# bit3-0: 0, Cmd=Normal SDRAM Mode
# bit31-4: 0 required
DATA 0xFFD0141C 0x00000C52 # DDR Mode
# bit2-0: 2, Burst Length (2 required)
# bit3: 0, Burst Type (0 required)
# bit6-4: 5, CAS Latency (CL) 5
# bit7: 0, (Test Mode) Normal operation
# bit8: 0, (Reset DLL) Normal operation
# bit11-9: 0, Write recovery for auto-precharge (3 required ??)
# bit12: 0, Fast Active power down exit time (0 required)
# bit31-13: 0 required
DATA 0xFFD01420 0x00000040 # DDR Extended Mode
# bit0: 0, DRAM DLL enabled
# bit1: 0, DRAM drive strength normal
# bit2: 0, ODT control Rtt[0] (Rtt=2, 150 ohm termination)
# bit5-3: 0 required
# bit6: 1, ODT control Rtt[1] (Rtt=2, 150 ohm termination)
# bit9-7: 0 required
# bit10: 0, differential DQS enabled
# bit11: 0 required
# bit12: 0, DRAM output buffer enabled
# bit31-13: 0 required
DATA 0xFFD01424 0x0000F17F # DDR Controller Control High
# bit2-0: 0x7 required
# bit3: 1, MBUS Burst Chop disabled
# bit6-4: 0x7 required
# bit7: 0 required
# 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: 0xf required
# bit31-16: 0 required
DATA 0xFFD01428 0x00085520 # DDR2 ODT Read Timing
# bit3-0: 0 required
# bit7-4: 2, 2 cycles from read command to assertion of M_ODT signal
# bit11-8: 5, 5 cycles from read command to de-assertion of M_ODT signal
# bit15-12: 5, 5 cycles from read command to assertion of internal ODT signal
# bit19-16: 8, 8 cycles from read command to de-assertion of internal ODT signal
# bit31-20: 0 required
DATA 0xFFD0147C 0x00008552 # DDR2 ODT Write Timing
# bit3-0: 2, 2 cycles from write comand to assertion of M_ODT signal
# bit7-4: 5, 5 cycles from write command to de-assertion of M_ODT signal
# bit15-12: 5, 5 cycles from write command to assertion of internal ODT signal
# bit19-16: 8, 8 cycles from write command to de-assertion of internal ODT signal
# bit31-16: 0 required
DATA 0xFFD01500 0x00000000 # CS[0]n Base address to 0x0
DATA 0xFFD01504 0x0FFFFFF1 # CS[0]n Size
# bit0: 1, Window enabled
# bit1: 0, Write Protect disabled
# bit3-2: 0x0, CS0 hit selected
# bit23-4: 0xfffff required
# bit31-24: 0x0f, Size (i.e. 256MB)
DATA 0xFFD01508 0x10000000 # CS[1]n Base address to 256Mb
DATA 0xFFD0150C 0x0FFFFFF5 # CS[1]n Size 256Mb Window enabled for CS1
# bit0: 1, Window enabled
# bit1: 0, Write Protect disabled
# bit3-2: 1, CS1 hit selected
# bit23-4: 0xfffff required
# bit31-24: 0x0f, Size (i.e. 256MB)
DATA 0xFFD01514 0x00000000 # CS[2]n Size, window disabled
DATA 0xFFD0151C 0x00000000 # CS[3]n Size, window disabled
DATA 0xFFD01494 0x00030000 # DDR ODT Control (Low)
# bit3-0: 0b0000, (read) M_ODT[0] is not asserted during read from DRAM
# bit7-4: 0b0000, (read) M_ODT[1] is not asserted during read from DRAM
# bit15-8: 0 required
# bit19-16: 0b0011, (write) M_ODT[0] is asserted during write to DRAM CS0 and CS1
# bit23-20: 0b0000, (write) M_ODT[1] is not asserted during write to DRAM
# bit31-24: 0 required
DATA 0xFFD01498 0x00000000 # DDR ODT Control (High)
# bit1-0: 0, M_ODT[0] assertion is controlled by ODT Control Low register
# bit3-2: 0, M_ODT[1] assertion is controlled by ODT Control Low register
# bit31-4 0 required
DATA 0xFFD0149C 0x0000E803 # CPU ODT Control
# bit3-0: 0b0011, internal ODT is asserted during read from DRAM bank 0-1
# bit7-4: 0b0000, internal ODT is not asserted during write to DRAM bank 0-4
# bit9-8: 0, Internal ODT assertion is controlled by fiels
# bit11-10: 2, M_DQ, M_DM, and M_DQS I/O buffer ODT 75 ohm
# bit13-12: 2, M_STARTBURST_IN I/O buffer ODT 75 ohm
# bit14: 1, M_STARTBURST_IN ODT enabled
# bit15: 1, DDR IO ODT Unit: Drive ODT calibration values
# bit20-16: 0, Pad N channel driving strength for ODT
# bit25-21: 0, Pad P channel driving strength for ODT
# bit31-26: 0 required
DATA 0xFFD01480 0x00000001 # DDR Initialization Control
# bit0: 1, enable DDR init upon this register write
# bit31-1: 0, required
# End of Header extension
DATA 0x0 0x0
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