--- /dev/null
+#
+# Copyright (c) 2012 Michael Walle
+# Michael Walle <michael@walle.cc>
+#
+# 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
+
+# SOC registers configuration using bootrom header extension
+# Maximum KWBIMAGE_MAX_CONFIG configurations allowed
+
+# Configure RGMII-0/1 interface pad voltage to 1.8V
+DATA 0xFFD100E0 0x1B1B1B9B
+
+# L2 RAM Timing 0
+DATA 0xFFD20134 0xBBBBBBBB
+# not further specified in HW manual, timing taken from original vendor port
+
+# L2 RAM Timing 1
+DATA 0xFFD20138 0x00BBBBBB
+# not further specified in HW manual, timing taken from original vendor port
+
+# DDR Configuration register
+DATA 0xFFD01400 0x43000618
+# bit13-0: 0x618, 1560 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
+
+# DDR Controller Control Low
+DATA 0xFFD01404 0x39543000
+# bit3-0: 0 required
+# bit4: 0, addr/cmd in same 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
+
+# DDR Timing (Low)
+DATA 0xFFD01408 0x3302444F
+# bit3-0: 0xf, 16 cycle tRAS (tRAS[3-0])
+# bit7-4: 4, 5 cycle tRCD
+# bit11-8: 4, 5 cyle tRP
+# bit15-12: 4, 5 cyle tWR
+# bit19-16: 2, 3 cyle tWTR
+# bit20: 0, 16 cycle tRAS (tRAS[4])
+# bit23-21: 0 required
+# bit27-24: 3, 4 cycle tRRD
+# bit31-28: 3, 4 cyle tRTP
+
+# DDR Timing (High)
+DATA 0xFFD0140C 0x00000823
+# bit6-0: 0x23, 35 cycle tRFC
+# bit8-7: 0, 1 cycle tR2R
+# bit10-9: 0, 1 cyle tR2W
+# bit12-11: 1, 2 cylce tW2W
+# bit31-13: 0 required
+
+# DDR Address Control
+DATA 0xFFD01410 0x00000009
+# bit1-0: 1, Cs0width=x16
+# bit3-2: 2, Cs0size=512Mbit
+# 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
+
+# DDR Open Pages Control
+DATA 0xFFD01414 0x00000000
+# bit0: 0, OPEn=OpenPage enabled
+# bit31-1: 0 required
+
+# DDR Operation
+DATA 0xFFD01418 0x00000000
+# bit3-0: 0, Cmd=Normal SDRAM Mode
+# bit31-4: 0 required
+
+# DDR Mode
+DATA 0xFFD0141C 0x00000652
+# 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: 3, Write recovery for auto-precharge (3 required)
+# bit12: 0, Fast Active power down exit time (0 required)
+# bit31-13: 0 required
+
+# DDR Extended Mode
+DATA 0xFFD01420 0x00000042
+# bit0: 0, DRAM DLL enabled
+# bit1: 1, DRAM drive strength reduced
+# 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
+
+# DDR Controller Control High
+DATA 0xFFD01424 0x0000F17F
+# 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
+
+# DDR2 ODT Read Timing (default values)
+DATA 0xFFD01428 0x00085520
+# 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
+
+# DDR2 ODT Write Timing (default values)
+DATA 0xFFD0147C 0x00008552
+# 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
+
+# CS[0]n Base address
+DATA 0xFFD01500 0x00000000
+# at 0x0
+
+# CS[0]n Size
+DATA 0xFFD01504 0x03FFFFF1
+# bit0: 1, Window enabled
+# bit1: 0, Write Protect disabled
+# bit3-2: 0x0, CS0 hit selected
+# bit23-4: 0xfffff required
+# bit31-24: 0x03, Size (i.e. 64MB)
+
+# CS[1]n Size
+DATA 0xFFD0150C 0x00000000
+# window disabled
+
+# CS[2]n Size
+DATA 0xFFD01514 0x00000000
+# window disabled
+
+# CS[3]n Size
+DATA 0xFFD0151C 0x00000000
+# window disabled
+
+# DDR ODT Control (Low)
+DATA 0xFFD01494 0x003C0000
+# 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: 0b1100, (write) M_ODT[0] is asserted during write to DRAM CS2, CS3
+# bit23-20: 0b0011, (write) M_ODT[1] is asserted during write to DRAM CS0, CS1
+# bit31-24: 0 required
+
+# DDR ODT Control (High)
+DATA 0xFFD01498 0x00000000
+# 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
+
+# CPU ODT Control
+DATA 0xFFD0149C 0x0000E80F
+# bit3-0: 0b1111, internal ODT is asserted during read from DRAM bank 0-3
+# bit7-4: 0b0000, internal ODT is not asserted during write to DRAM bank 0-3
+# 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
+
+# DDR Initialization Control
+DATA 0xFFD01480 0x00000001
+# bit0: 1, enable DDR init upon this register write
+# bit31-1: 0, required
+
+# End of Header extension
+DATA 0x0 0x0
Code Review / kvmfornfv.git / blobdiff