| # SPDX-License-Identifier: GPL-2.0+ |
| # |
| # Copyright (C) 2011 Simon Guinot <sguinot@lacie.com> |
| # |
| # Based on Kirkwood support: |
| # (C) Copyright 2009 |
| # Marvell Semiconductor <www.marvell.com> |
| # Written-by: Prafulla Wadaskar <prafulla@marvell.com> |
| # 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 |
| |
| # 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 0x43000618 # 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 0x34143000 # 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 0x11012228 # DDR Timing (Low) (active cycles value +1) |
| # 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 0x00000A19 # DDR Timing (High) |
| # bit6-0: TRFC |
| # bit8-7: TR2R |
| # bit10-9: TR2W |
| # bit12-11: TW2W |
| # bit31-13: zero required |
| |
| DATA 0xFFD01410 0x0000DDDD # DDR Address Control |
| # bit1-0: 00, Cs0width=x8 |
| # bit3-2: 10, Cs0size=512Mb |
| # 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 0x00000632 # 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 0x00000004 # 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 0x0000F07F # 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 0x00010000 # 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 0x0000E40F # 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 |
