This reverts commit 059323fb6a8f21637bb617919715c2427f24777c.
This commit 059323fb6a8f21637bb617919715c2427f24777c use JESD79-3E which is not the newest spec. Should use JESD79-3F in which tRFC is 260ns for 4Gb chip.
Signed-off-by: Peng Fan Peng.Fan@freescale.com Cc: Stefano Babic sbabic@denx.de Cc: Tim Harvey tharvey@gateworks.com --- arch/arm/cpu/armv7/mx6/ddr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/cpu/armv7/mx6/ddr.c b/arch/arm/cpu/armv7/mx6/ddr.c index cf5587b..6b039e4 100644 --- a/arch/arm/cpu/armv7/mx6/ddr.c +++ b/arch/arm/cpu/armv7/mx6/ddr.c @@ -702,8 +702,8 @@ void mx6_ddr3_cfg(const struct mx6_ddr_sysinfo *sysinfo, txs = DIV_ROUND_UP(170000, clkper) - 1; break; case 4: /* 4Gb per chip */ - trfc = DIV_ROUND_UP(300000, clkper) - 1; - txs = DIV_ROUND_UP(310000, clkper) - 1; + trfc = DIV_ROUND_UP(260000, clkper) - 1; + txs = DIV_ROUND_UP(270000, clkper) - 1; break; case 8: /* 8Gb per chip */ trfc = DIV_ROUND_UP(350000, clkper) - 1;