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authorStefan Agner <stefan.agner@toradex.com>2019-03-25 17:25:10 +0100
committerStefano Babic <sbabic@denx.de>2019-04-13 20:30:09 +0200
commitbe24fc780727bf008844d255fc25f2d23afa7812 (patch)
treed2572e79bfb1b93e1150187c40839d37ad1c8947
parent2588bf1edc3545bd72ecf32f14114dc0dfde58b8 (diff)
colibri_vf: adjust timing according to data sheet
Using the DDR Validation tool in Processor Expert uncovered two timing inconsistencies. Since those timings are related to the suspend mode they do not affect or change regular memory behaviour. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Igor Opaniuk <igor.opaniuk@toradex.com>
-rw-r--r--board/toradex/colibri_vf/colibri_vf.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/board/toradex/colibri_vf/colibri_vf.c b/board/toradex/colibri_vf/colibri_vf.c
index 9c5bf4951b..3e39912f91 100644
--- a/board/toradex/colibri_vf/colibri_vf.c
+++ b/board/toradex/colibri_vf/colibri_vf.c
@@ -101,15 +101,21 @@ int dram_init(void)
.tras_lockout = 0,
.tdal = 12,
.bstlen = 3,
- .tdll = 512,
+ .tdll = 512, /* not applicable since freq. scaling
+ * is not used
+ */
.trp_ab = 6,
.tref = 3120,
.trfc = 64,
.tref_int = 0,
.tpdex = 3,
.txpdll = 10,
- .txsnr = 48,
- .txsr = 468,
+ .txsnr = 68, /* changed to conform to JEDEC
+ * specifications
+ */
+ .txsr = 506, /* changed to conform to JEDEC
+ * specifications
+ */
.cksrx = 5,
.cksre = 5,
.freq_chg_en = 0,