# # (C) Copyright 2010 # Heiko Schocher, DENX Software Engineering, hs@denx.de. # # SPDX-License-Identifier: GPL-2.0+ # # Refer doc/README.kwbimage for more details about how-to configure # and create kirkwood boot image # # Boot Media configurations BOOT_FROM spi # Boot from SPI flash DATA 0xFFD10000 0x01112222 # MPP Control 0 Register # bit 3-0: MPPSel0 2, NF_IO[2] # bit 7-4: MPPSel1 2, NF_IO[3] # bit 12-8: MPPSel2 2, NF_IO[4] # bit 15-12: MPPSel3 2, NF_IO[5] # bit 19-16: MPPSel4 1, NF_IO[6] # bit 23-20: MPPSel5 1, NF_IO[7] # bit 27-24: MPPSel6 1, SYSRST_O # bit 31-28: MPPSel7 0, GPO[7] DATA 0xFFD10004 0x03303300 DATA 0xFFD10008 0x00001100 # MPP Control 2 Register # bit 3-0: MPPSel16 0, GPIO[16] # bit 7-4: MPPSel17 0, GPIO[17] # bit 12-8: MPPSel18 1, NF_IO[0] # bit 15-12: MPPSel19 1, NF_IO[1] # bit 19-16: MPPSel20 0, GPIO[20] # bit 23-20: MPPSel21 0, GPIO[21] # bit 27-24: MPPSel22 0, GPIO[22] # bit 31-28: MPPSel23 0, GPIO[23] DATA 0xFFD100E0 0x1B1B1B1B # IO Configuration 0 Register DATA 0xFFD20134 0x66666666 # L2 RAM Timing 0 Register DATA 0xFFD20138 0x66666666 # L2 RAM Timing 1 Register # NOTE: Don't write on 0x20148 , 0x2014c and 0x20154, leave them untouched! # If not it could cause KW Exceptions during boot in Fast Corners/High Voltage #Dram initalization DATA 0xFFD01400 0x43000400 # SDRAM Configuration Register # bit13-0: 0x400 (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 0x39543000 # DDR Controller Control Low # bit 3-0: 0 reserved # 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: 3=recommended value for CL=3 and STARTBURST_DEL disabled bit31=0 # bit27-24: 6= CL+3, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM # bit30-28: 3 required # bit31: 0=no additional STARTBURST delay DATA 0xFFD01408 0x34136552 # 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 0x00000033 # 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 0x00000652 # DDR Mode DATA 0xFFD01420 0x00000044 # DDR Extended Mode # bit0: 0, DDR DLL enabled # bit1: 0, DDR drive strenght normal # bit2: 1, DDR ODT control lsd disabled # 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 0x0000F07F # DDR Controller Control High # bit2-0: 111, required # bit3 : 1 , MBUS Burst Chop disabled # bit6-4: 111, required # bit7 : 0 # bit8 : 0 , no sample stage # 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 0x00074510 DATA 0xFFD0147c 0x00007451 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: 0, ODT0Rd, MODT[0] asserted during read from DRAM CS0 # bit19-16:0, 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: 00, ODT1 controlled by register # bit31-4: zero, required DATA 0xFFD0149C 0x0000FC11 # CPU ODT Control # bit3-0: F, ODT0Rd, Internal ODT asserted during read from DRAM bank0 # bit7-4: 0, ODT0Wr, Internal ODT asserted during write to DRAM bank0 # bit9-8: 1, ODTEn, never active # bit11-10:2, DQ_ODTSel. ODT select turned on, 75 ohm DATA 0xFFD01480 0x00000001 # DDR Initialization Control # bit0=1, enable DDR init upon this register write # End of Header extension DATA 0x0 0x0