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armv8: ls1012a: Update Refresh cycle for DDR
authorPrabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Tue, 19 Jul 2016 10:24:33 +0000 (15:54 +0530)
committerYork Sun <york.sun@nxp.com>
Tue, 2 Aug 2016 16:46:02 +0000 (09:46 -0700)
commit37eac3f4609c4a6b7c8c3a2f4046fbc5deb07299
tree54f6761e38d1f1ef2769dc2dd0c0faaa04765477tree | snapshot
parent9c3fca2a79be3d9d67d7766bbd85efc941bcb237commit | diff
armv8: ls1012a: Update Refresh cycle for DDR

Refresh cycle value must be selected based on the frequency
of DDR. tREFI = 7.8 us as per JEDEC. The value for MDREF[REF_CNT]
should be based on round up (tREFI/tCK) formula. For 500MHz, mdref
value should be 0x0f3c8000.

Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
include/fsl_mmdc.h diff | blob | history
Cloned from git://git.denx.de/u-boot.git