> -----Original Message----- > From: Holger Brunck [mailto:holger.bru...@keymile.com] > Sent: 02 November 2012 15:45 > To: u-boot@lists.denx.de > Cc: Holger Brunck; Valentin Longchamp; Prafulla Wadaskar > Subject: [PATCH 1/4] arm/km: fix memory settings > > 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.bru...@keymile.com> > Signed-off-by: Valentin Longchamp <valentin.longch...@keymile.com> > cc: Prafulla Wadaskar <prafu...@marvell.com> > --- > board/keymile/km_arm/kwbimage-memphis.cfg | 6 +++--- > board/keymile/km_arm/kwbimage.cfg | 6 +++--- > board/keymile/km_arm/kwbimage_128M16_1.cfg | 25 ++----------------- > ------ > board/keymile/km_arm/kwbimage_256M8_1.cfg | 25 ++----------------- > ------ > 4 files changed, 10 insertions(+), 52 deletions(-) > > diff --git a/board/keymile/km_arm/kwbimage-memphis.cfg > b/board/keymile/km_arm/kwbimage-memphis.cfg > index 6df2ad7..5aa0de2 100644 > --- a/board/keymile/km_arm/kwbimage-memphis.cfg > +++ b/board/keymile/km_arm/kwbimage-memphis.cfg > @@ -55,9 +55,9 @@ DATA 0xFFD10008 0x00001100 # MPP Control 2 > Register > DATA 0xFFD100E0 0x1B1B1B1B # IO Configuration 0 Register > DATA 0xFFD20134 0x66666666 # L2 RAM Timing 0 Register > DATA 0xFFD20138 0x66666666 # L2 RAM Timing 1 Register > -DATA 0xFFD20154 0x00000200 # CPU RAM Management Control3 Register > -DATA 0xFFD2014C 0x00001C00 # CPU RAM Management Control1 Register > -DATA 0xFFD20148 0x00000001 # CPU RAM Management Control0 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 0x430004E0 # SDRAM Configuration Register > diff --git a/board/keymile/km_arm/kwbimage.cfg > b/board/keymile/km_arm/kwbimage.cfg > index b2f5193..e5e9942 100644 > --- a/board/keymile/km_arm/kwbimage.cfg > +++ b/board/keymile/km_arm/kwbimage.cfg > @@ -52,9 +52,9 @@ DATA 0xFFD10008 0x00001100 # MPP Control 2 > Register > DATA 0xFFD100E0 0x1B1B1B1B # IO Configuration 0 Register > DATA 0xFFD20134 0x66666666 # L2 RAM Timing 0 Register > DATA 0xFFD20138 0x66666666 # L2 RAM Timing 1 Register > -DATA 0xFFD20154 0x00000200 # CPU RAM Management Control3 Register > -DATA 0xFFD2014C 0x00001C00 # CPU RAM Management Control1 Register > -DATA 0xFFD20148 0x00000001 # CPU RAM Management Control0 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 > diff --git a/board/keymile/km_arm/kwbimage_128M16_1.cfg > b/board/keymile/km_arm/kwbimage_128M16_1.cfg > index bcce907..5de8df7 100644 > --- a/board/keymile/km_arm/kwbimage_128M16_1.cfg > +++ b/board/keymile/km_arm/kwbimage_128M16_1.cfg > @@ -98,29 +98,8 @@ DATA 0xFFD20138 0x66666666 # L2 RAM Timing 1 > Register > # bit 19-18: 1, ECC RAM WTC RAM0 > # bit 31-20: ???,Reserve > > -DATA 0xFFD20154 0x00000200 # CPU RAM Management Control3 Register > -# bit 23-0: 0x000200, Addr Config tuning > -# bit 31-24: 0, Reserved > - > -# ??? Missing register # CPU RAM Management Control2 Register > - > -DATA 0xFFD2014C 0x00001C00 # CPU RAM Management Control1 Register > -# bit 15-0: 0x1C00, Opmux Tuning > -# bit 31-16: 0, Pc Dp Tuning > - > -DATA 0xFFD20148 0x00000001 # CPU RAM Management Control0 Register > -# bit 1-0: 1, addr clk tune > -# bit 3-2: 0, reserved > -# bit 5-4: 0, dtcmp clk tune > -# bit 7-6: 0, reserved > -# bit 9-8: 0, macdrv clk tune > -# bit 11-10: 0, opmuxgm2 clk tune > -# bit 15-14: 0, rf clk tune > -# bit 17-16: 0, rfbypass clk tune > -# bit 19-18: 0, pc dp clk tune > -# bit 23-20: 0, icache clk tune > -# bit 27:24: 0, dcache clk tune > -# bit 31:28: 0, regfile tunin > +# 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 > > # SDRAM initalization > DATA 0xFFD01400 0x430004E0 # SDRAM Configuration Register > diff --git a/board/keymile/km_arm/kwbimage_256M8_1.cfg > b/board/keymile/km_arm/kwbimage_256M8_1.cfg > index 3e1237b..d0a09f6 100644 > --- a/board/keymile/km_arm/kwbimage_256M8_1.cfg > +++ b/board/keymile/km_arm/kwbimage_256M8_1.cfg > @@ -100,29 +100,8 @@ DATA 0xFFD20138 0x66666666 # L2 RAM Timing 1 > Register > # bit 19-18: 1, ECC RAM WTC RAM0 > # bit 31-20: ?,Reserved > > -DATA 0xFFD20154 0x00000200 # CPU RAM Management Control3 Register > -# bit 23-0: 0x000200, Addr Config tuning > -# bit 31-24: 0, Reserved > - > -# ??? Missing register # CPU RAM Management Control2 Register > - > -DATA 0xFFD2014C 0x00001C00 # CPU RAM Management Control1 Register > -# bit 15-0: 0x1C00, Opmux Tuning > -# bit 31-16: 0, Pc Dp Tuning > - > -DATA 0xFFD20148 0x00000001 # CPU RAM Management Control0 Register > -# bit 1-0: 1, addr clk tune > -# bit 3-2: 0, reserved > -# bit 5-4: 0, dtcmp clk tune > -# bit 7-6: 0, reserved > -# bit 9-8: 0, macdrv clk tune > -# bit 11-10: 0, opmuxgm2 clk tune > -# bit 15-14: 0, rf clk tune > -# bit 17-16: 0, rfbypass clk tune > -# bit 19-18: 0, pc dp clk tune > -# bit 23-20: 0, icache clk tune > -# bit 27:24: 0, dcache clk tune > -# bit 31:28: 0, regfile tunin > +# 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 > > # SDRAM initalization > DATA 0xFFD01400 0x430004E0 # SDRAM Configuration Register > -- > 1.7.1
Applied to u-boot-marvell.git master branch Regards... Prafulla . . . _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
