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authorMarco Schmid <marco.schmid@keymile.com>2011-12-14 16:21:42 +0100
committerKim Phillips <kim.phillips@freescale.com>2012-01-09 20:10:33 -0600
commit513e396b4fda8fe06d3e336ba74d31c75ef757db (patch)
tree67aa72df8c9dbbb947224eee4b6babef46a8d648
parent0eaf8f9ea8e17f642f65c058cc6ed70e5e1441e7 (diff)
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powerpc/83xx/km: update SDRAM parameters for km8321 boards
Measurements during HW basic test showed, that the SDRAM timing has to be optimized. This patch adapted these timings accordingly. Signed-off-by: Marco Schmid <marco.schmid@keymile.com> Signed-off-by: Holger Brunck <holger.brunck@keymile.com> cc: Valentin Longchamp <valentin.longchamp@keymile.com> Acked-by: Heiko Schocher <hs@denx.de> Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
-rw-r--r--include/configs/km/km8321-common.h24
1 files changed, 14 insertions, 10 deletions
diff --git a/include/configs/km/km8321-common.h b/include/configs/km/km8321-common.h
index 902ae26..580b72f 100644
--- a/include/configs/km/km8321-common.h
+++ b/include/configs/km/km8321-common.h
@@ -70,7 +70,8 @@
#define CONFIG_SYS_DDR_CS0_BNDS 0x0000007f
#define CONFIG_SYS_DDR_SDRAM_CFG (SDRAM_CFG_SDRAM_TYPE_DDR2 | \
SDRAM_CFG_32_BE | \
- SDRAM_CFG_SREN)
+ SDRAM_CFG_SREN | \
+ SDRAM_CFG_HSE)
#define CONFIG_SYS_DDR_SDRAM_CFG2 0x00401000
#define CONFIG_SYS_DDR_CLK_CNTL (DDR_SDRAM_CLK_CNTL_CLK_ADJUST_05)
@@ -82,7 +83,7 @@
CSCONFIG_ROW_BIT_13 | \
CSCONFIG_COL_BIT_10)
-#define CONFIG_SYS_DDR_MODE 0x47860252
+#define CONFIG_SYS_DDR_MODE 0x47860242
#define CONFIG_SYS_DDR_MODE2 0x8080c000
#define CONFIG_SYS_DDR_TIMING_0 ((2 << TIMING_CFG0_MRS_CYC_SHIFT) | \
@@ -94,20 +95,20 @@
(0 << TIMING_CFG0_WRT_SHIFT) | \
(0 << TIMING_CFG0_RWT_SHIFT))
-#define CONFIG_SYS_DDR_TIMING_1 ((TIMING_CFG1_CASLAT_50) | \
+#define CONFIG_SYS_DDR_TIMING_1 ((TIMING_CFG1_CASLAT_40) | \
(2 << TIMING_CFG1_WRTORD_SHIFT) | \
(2 << TIMING_CFG1_ACTTOACT_SHIFT) | \
- (2 << TIMING_CFG1_WRREC_SHIFT) | \
- (6 << TIMING_CFG1_REFREC_SHIFT) | \
- (2 << TIMING_CFG1_ACTTORW_SHIFT) | \
- (6 << TIMING_CFG1_ACTTOPRE_SHIFT) | \
- (2 << TIMING_CFG1_PRETOACT_SHIFT))
+ (3 << TIMING_CFG1_WRREC_SHIFT) | \
+ (7 << TIMING_CFG1_REFREC_SHIFT) | \
+ (3 << TIMING_CFG1_ACTTORW_SHIFT) | \
+ (7 << TIMING_CFG1_ACTTOPRE_SHIFT) | \
+ (3 << TIMING_CFG1_PRETOACT_SHIFT))
#define CONFIG_SYS_DDR_TIMING_2 ((8 << TIMING_CFG2_FOUR_ACT_SHIFT) | \
(3 << TIMING_CFG2_CKE_PLS_SHIFT) | \
(2 << TIMING_CFG2_WR_DATA_DELAY_SHIFT) | \
(2 << TIMING_CFG2_RD_TO_PRE_SHIFT) | \
- (4 << TIMING_CFG2_WR_LAT_DELAY_SHIFT) | \
+ (3 << TIMING_CFG2_WR_LAT_DELAY_SHIFT) | \
(0 << TIMING_CFG2_ADD_LAT_SHIFT) | \
(5 << TIMING_CFG2_CPO_SHIFT))
@@ -122,7 +123,10 @@
/*
* Local Bus Configuration & Clock Setup
*/
-#define CONFIG_SYS_LCRR (LCRR_DBYP | LCRR_EADC_1 | LCRR_CLKDIV_2)
+#define CONFIG_SYS_LCRR_DBYP 0x80000000
+#define CONFIG_SYS_LCRR_EADC 0x00010000
+#define CONFIG_SYS_LCRR_CLKDIV 0x00000002
+
#define CONFIG_SYS_LBC_LBCR 0x00000000
/*