]> git.sur5r.net Git - u-boot/commit
samsung: fix DMC1_MEM_CFG for s3c64xx
authorSeunghyeon Rhee <seunghyeon@lpmtec.com>
Thu, 3 Dec 2009 00:41:49 +0000 (09:41 +0900)
committerTom Rix <Tom.Rix@windriver.com>
Thu, 14 Jan 2010 17:48:56 +0000 (11:48 -0600)
commit59a71a096a41bb0fb38ee9416d1d7e2b8200b038
treec7bc6ce26fc439dac403fdf0f24275c190b9c011
parent2ff6922280025c1315c53fa2eb4ab33f0c9591de
samsung: fix DMC1_MEM_CFG for s3c64xx

The MSB of DMC1_MEM_CFG can be set to '1' for separate CKE control
for S3C6400. In the configuration of SMDK6400, however, two 16-bit
mDDR (SAMSUNG K4X51163) chips are used in parallel to form 32-bit
memory bus and there is no need to control CKE for each chip
separately. AFAIK, CKE1 is not at all connected. Only CKE0 is
used. Futhermore, it should be '0' always for S3C6410. When tested
with a board which has a S3C6410 and the same memory configuration,
a side effect is observed that u-boot command "reset" doesn't work
leading to system hang. Leaving the bit clear is safe in most cases.

Signed-off-by: Seunghyeon Rhee <seunghyeon@lpmtec.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
include/asm-arm/arch-s3c64xx/s3c6400.h