Some 85xx processors have the advanced power management feature,
such as wake up ARP, that needs enable the automatic self refresh.
If the DDR controller pass the SR_IT (self refresh idle threshold)
idle cycles, it will automatically enter self refresh. However,
anytime one transaction is issued to the DDR controller, it will
reset the counter and exit self refresh state.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
- The DDR3 controller is expanding the bits for timing config
- Add the DDR3 32-bit bus mode support
Signed-off-by: Dave Liu <daveliu@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
According to the latest 8572 UM, the DDR3 controller
is expanding the bit mask, and we use the extend ACTTOPRE
mode when tRAS more than 19 MCLK.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Fix some bugs:
1. Correctly set intlv_ctl in cs_config.
2. Correctly set sa, ea in cs_bnds when bank interleaving mode is enabled.
3. Set base_address and total memory for each ddr controller in memory
controller interleaving mode.
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
ctrl_regs.c: In function 'compute_fsl_memctl_config_regs':
ctrl_regs.c:523: warning: 'caslat' may be used uninitialized in this function
ctrl_regs.c:523: note: 'caslat' was declared here
Add a warning in DDR1 case if cas_latency isn't a value we know about.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
The main purpose of this rewrite it to be able to share the same
initialization code on all FSL PowerPC products that have DDR
controllers. (83xx, 85xx, 86xx).
The code is broken up into the following steps:
GET_SPD
COMPUTE_DIMM_PARMS
COMPUTE_COMMON_PARMS
GATHER_OPTS
ASSIGN_ADDRESSES
COMPUTE_REGS
PROGRAM_REGS
This allows us to share more code an easily allow for board specific code
overrides.
Additionally this code base adds support for >4G of DDR and provides a
foundation for supporting interleaving on processors with more than one
controller.
Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Dave Liu
Haiying Wang
Kumar Gala