The value in SDRAM_REF_CTRL controls the delay time between the initial rising edge of DDR_RESETn to rising edge of DDR_CKE (JEDEC specs this as 500us). In order to achieve this, SDRAM_REF_CTRL should be written with a value corresponding to 500us delay before starting DDR initialization sequence, and configure proper value at the end of sequence. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> |
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cpu | ||
dts | ||
imx-common | ||
include | ||
lib | ||
mvebu-common | ||
config.mk | ||
Kconfig | ||
Kconfig.debug | ||
Makefile |