The field wrtord_bg should add 2 clocks if on the fly chop is enabled,
according to DDR controller manual for DDR4.
Signed-off-by: York Sun <yorksun@freescale.com>
When the DDR controller is initialized below a junction temperature of
0°C and then operated above a junction temperature of 65°C, the DDR
controller may cause receive data errors, resulting ECC errors and/or
corrupted data. This erratum applies to the following SoCs and their
variants: MPC8536, MPC8569, MPC8572, P1010, P1020, P1021, P1022, P1023,
P2020.
Signed-off-by: York Sun <yorksun@freescale.com>
This is a theoretical possible out of bounds error in DDR driver. Adding
check before using array index. Also change some runtime conditions to
pre-compiling conditions.
Signed-off-by: York Sun <yorksun@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Freescale LayerScape SoCs support controller interleaving on 256 byte size.
This interleaving is mandoratory.
Signed-off-by: York Sun <yorksun@freescale.com>
Initially it was believed the DDR controller on Freescale ARM would have
big endian. But some platform will have little endian.
Signed-off-by: York Sun <yorksun@freescale.com>
Some DDR registers' fields have expanded to accommodate larger values.
These changes are backward compatible. Some fields are removed for newer
DDR controllers. Writing to those fields are safely ignored.
TIMING_CFG_2 register is fixed. Additive latency is added to RD_TO_PRE
automatically. It was a misunderstanding in commit c360ceac.
Signed-off-by: York Sun <yorksun@freescale.com>
Fix ccsr_ddr structure to avoid using typedef. Combine DDR2 and DDR3
structure for 83xx, 85xx and 86xx.
Signed-off-by: York Sun <yorksun@freescale.com>
Freescale DDR driver has been used for mpc83xx, mpc85xx, mpc86xx SoCs.
The similar DDR controllers will be used for ARM-based SoCs.
Signed-off-by: York Sun <yorksun@freescale.com>
2013-11-25 11:43:43 -08:00
Renamed from arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c (Browse further)
