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authorHolger Brunck <holger.brunck@keymile.com>2012-11-02 00:15:07 +0000
committerPrafulla Wadaskar <prafulla@marvell.com>2013-01-09 04:12:10 +0530
commit2472216caccc82f8b4bbe62421aa649eb186fefc (patch)
treebcf0203fd9e04af0e9b8f5d258121e7e7565753f
parent7528cf5f016b5b8b8b12b373f6f31a10bf89233d (diff)
downloadu-boot-linaro-stable-2472216caccc82f8b4bbe62421aa649eb186fefc.tar.gz
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>
-rw-r--r--board/keymile/km_arm/kwbimage-memphis.cfg6
-rw-r--r--board/keymile/km_arm/kwbimage.cfg6
-rw-r--r--board/keymile/km_arm/kwbimage_128M16_1.cfg25
-rw-r--r--board/keymile/km_arm/kwbimage_256M8_1.cfg25
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 6df2ad790..5aa0de252 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 b2f51936f..e5e9942c1 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 bcce9073f..5de8df70f 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 3e1237bbe..d0a09f61d 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