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https://github.com/AsahiLinux/u-boot
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2472216cac
On kmcoge5un we faced some serious problems with the memory during temperature tests. Reason was that we overwrite some registers for memory settings which have to leave untouched. These where registers 0x20148 , 0x2014c and 0x20154. So writing these registers is prohibited and this patch removes them from all km related config files. Even if the problem was only seen on kmcoge5un. Signed-off-by: Holger Brunck <holger.brunck@keymile.com> Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com> cc: Prafulla Wadaskar <prafulla@marvell.com>
197 lines
6.7 KiB
INI
197 lines
6.7 KiB
INI
#
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# (C) Copyright 2010
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# Heiko Schocher, DENX Software Engineering, hs@denx.de.
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#
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# (C) Copyright 2011
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# Valentin Longchamp, Keymile AG, valentin.longchamp@keymile.com
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301 USA
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#
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# Refer docs/README.kwimage 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 # Boot from SPI flash
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DATA 0xFFD10000 0x01112222 # MPP Control 0 Register
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# bit 3-0: MPPSel0 2, NF_IO[2]
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# bit 7-4: MPPSel1 2, NF_IO[3]
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# bit 12-8: MPPSel2 2, NF_IO[4]
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# bit 15-12: MPPSel3 2, NF_IO[5]
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# bit 19-16: MPPSel4 1, NF_IO[6]
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# bit 23-20: MPPSel5 1, NF_IO[7]
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# bit 27-24: MPPSel6 1, SYSRST_O
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# bit 31-28: MPPSel7 0, GPO[7]
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DATA 0xFFD10004 0x03303300
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DATA 0xFFD10008 0x00001100 # MPP Control 2 Register
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# bit 3-0: MPPSel16 0, GPIO[16]
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# bit 7-4: MPPSel17 0, GPIO[17]
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# bit 12-8: MPPSel18 1, NF_IO[0]
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# bit 15-12: MPPSel19 1, NF_IO[1]
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# bit 19-16: MPPSel20 0, GPIO[20]
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# bit 23-20: MPPSel21 0, GPIO[21]
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# bit 27-24: MPPSel22 0, GPIO[22]
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# bit 31-28: MPPSel23 0, GPIO[23]
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DATA 0xFFD100E0 0x1B1B1B1B # IO Configuration 0 Register
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DATA 0xFFD20134 0x66666666 # L2 RAM Timing 0 Register
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DATA 0xFFD20138 0x66666666 # L2 RAM Timing 1 Register
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# NOTE: Don't write on 0x20148 , 0x2014c and 0x20154, leave them untouched!
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# If not it could cause KW Exceptions during boot in Fast Corners/High Voltage
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#Dram initalization
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DATA 0xFFD01400 0x430004E0 # SDRAM Configuration Register
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# bit13-0: 0x4E0 (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 0x38543000 # DDR Controller Control Low
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# bit 3-0: 0 reserved
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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=4 and STARTBURST_DEL disabled bit31=0
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# bit27-24: 8= CL+4, 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 0x2302433E # 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 0x00000A3E # 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 0x00000001 # DDR Address Control
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# bit1-0: 01, Cs0width=x16
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# bit3-2: 00, Cs0size=2Gb
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# bit5-4: 00, Cs2width=nonexistent
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# bit7-6: 00, Cs1size =nonexistent
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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 0x00000652 # DDR Mode
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DATA 0xFFD01420 0x00000006 # DDR Extended Mode
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# bit0: 0, DDR DLL enabled
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# bit1: 1, DDR drive strenght reduced
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# bit2: 1, DDR ODT control lsd disabled
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# bit5-3: 000, required
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# bit6: 0, 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 a sample stage
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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 0x00084520 # DDR2 SDRAM Timing Low
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# bit3-0 : 0000, required
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# bit7-4 : 0010, M_ODT assertion 2 cycles after read
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# bit11-8 : 0101, M_ODT de-assertion 5 cycles after read
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# bit15-12: 0100, internal ODT assertion 4 cycles after read
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# bit19-16: 1000, internal ODT de-assertion 8 cycles after read
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# bit31-20: 0 , required
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DATA 0xFFD0147c 0x00008451 # DDR2 SDRAM Timing High
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# bit3-0 : 0001, M_ODT assertion same cycle as write
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# bit7-4 : 0101, M_ODT de-assertion x cycles after write
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# bit11-8 : 0100, internal ODT assertion x cycles after write
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# bit15-12: 1000, internal ODT de-assertion x cycles after write
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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 0xFFD0150C 0x00000000 # CS[1]n Size, window disabled
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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 0x00010000 # DDR ODT Control (Low)
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# bit3-0: 0, ODT0Rd, MODT[0] not asserted during read from DRAM CS0
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# bit19-16:1, ODT0Wr, MODT[0] asserted during write to DRAM CS0
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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: 00, ODT1 controlled by register
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# bit31-4: zero, required
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DATA 0xFFD0149C 0x0000F801 # CPU ODT Control
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# bit3-0: 1, ODT0Rd, Internal ODT asserted during read from DRAM bank0
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# bit7-4: 0, ODT0Wr, Internal ODT not asserted during write to DRAM bank0
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# bit9-8: 0, ODTEn, controlled by ODT0Rd and ODT0Wr
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# bit11-10:2, DQ_ODTSel. ODT select turned on, 75 ohm
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# bit13-12:3, STARTBURST ODT buffer selected, 50 ohm
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# bit14 :1, STARTBURST ODT enabled
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# bit15 :1, Use ODT Block
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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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