From 2472216caccc82f8b4bbe62421aa649eb186fefc Mon Sep 17 00:00:00 2001 From: Holger Brunck <holger.brunck@keymile.com> Date: Fri, 2 Nov 2012 00:15:07 +0000 Subject: [PATCH] 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.brunck@keymile.com> Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com> cc: Prafulla Wadaskar <prafulla@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 6df2ad7902..5aa0de2528 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 b2f51936f4..e5e9942c1a 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 bcce9073f6..5de8df70fd 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 3e1237bbe3..d0a09f61d2 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 -- 2.39.5