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[U-Boot,06/34] imx: ventana: enable precharge power-down fast-exit mode

Message ID 1428522904-8111-7-git-send-email-tharvey@gateworks.com
State Awaiting Upstream
Delegated to: Stefano Babic
Headers show

Commit Message

Tim Harvey April 8, 2015, 7:54 p.m. UTC 
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 | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/board/gateworks/gw_ventana/gw_ventana_spl.c b/board/gateworks/gw_ventana/gw_ventana_spl.c
index 9712812..5d313a9 100644
--- 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 */
 	};
 
 	/*