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imx: ventana: enable precharge power-down fast-exit mode
author
Tim Harvey
<tharvey@gateworks.com>
Wed, 8 Apr 2015 19:54:36 +0000
(12:54 -0700)
committer
Stefano Babic
<sbabic@denx.de>
Wed, 22 Apr 2015 12:39:07 +0000
(14:39 +0200)
Enable fast-exit precharge mode necessary for some DDR3 devices being
used on Ventana boards.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
board/gateworks/gw_ventana/gw_ventana_spl.c
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diff --git
a/board/gateworks/gw_ventana/gw_ventana_spl.c
b/board/gateworks/gw_ventana/gw_ventana_spl.c
index
9712812
..
5d313a9
100644
(file)
--- a/
board/gateworks/gw_ventana/gw_ventana_spl.c
+++ b/
board/gateworks/gw_ventana/gw_ventana_spl.c
@@
-340,6
+340,7
@@
static void spl_dram_init(int width, int size_mb, int board_model)
.bi_on = 1, /* Bank interleaving enabled */
.sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
.rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
+ .pd_fast_exit = 1, /* enable precharge power-down fast exit */
};
/*