diff options
| author | Marco Schmid <marco.schmid@keymile.com> | 2011-12-14 16:21:42 +0100 |
|---|---|---|
| committer | Kim Phillips <kim.phillips@freescale.com> | 2012-01-09 20:10:33 -0600 |
| commit | 513e396b4fda8fe06d3e336ba74d31c75ef757db (patch) | |
| tree | 67aa72df8c9dbbb947224eee4b6babef46a8d648 /include/configs/km | |
| parent | 0eaf8f9ea8e17f642f65c058cc6ed70e5e1441e7 (diff) | |
| download | u-boot-imx-513e396b4fda8fe06d3e336ba74d31c75ef757db.zip u-boot-imx-513e396b4fda8fe06d3e336ba74d31c75ef757db.tar.gz u-boot-imx-513e396b4fda8fe06d3e336ba74d31c75ef757db.tar.bz2 | |
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>
Diffstat (limited to 'include/configs/km')
| -rw-r--r-- | include/configs/km/km8321-common.h | 24 |
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 /* |