Commit graph

4 commits

Author SHA1 Message Date
Shaohui Xie
94752f60eb powerpc/t4qds: Add alternate serdes protocols to align with A-007186
A-007186: SerDes PLL is calibrated at reset. It is possible for jitter to
increase and cause the PLL to unlock when the temperature delta from the
time the PLL is calibrated exceeds +56C/-66C when using X VDD of 1.35 V
(or +70C/-80C when using XnVDD of 1.5 V). No issues are seen with LC
VCO. Only the protocols using Ring VCOs are impacted.

Workaround:
For all 1.25/2.5/5 GHz protocols, use LC VCO instead of Ring VCO, this need
to use alternate serdes protocols. The alternate option has the same
functionality as the original option; the only difference being LC VCO
rather than Ring VCO.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2014-06-05 12:55:59 -07:00
Shaohui Xie
cb753850e8 powerpc/t4240: updated RCW and PBI for rev2.0
Updated the RCW for rev2.0 which uses new frequency settings as below:

Clock Configuration:
CPU0:1666.667 MHz, CPU1:1666.667 MHz, CPU2:1666.667 MHz, CPU3:1666.667 MHz,
CPU4:1666.667 MHz, CPU5:1666.667 MHz, CPU6:1666.667 MHz, CPU7:1666.667 MHz,
CPU8:1666.667 MHz, CPU9:1666.667 MHz, CPU10:1666.667 MHz, CPU11:1666.667MHz,
CCB:733.333 MHz,
DDR:933.333 MHz (1866.667 MT/s data rate) (Asynchronous), IFC:183.333 MHz
FMAN1: 733.333 MHz
FMAN2: 733.333 MHz
QMAN:  366.667 MHz
PME:   533.333 MHz

Remove workaround of IFC bus speed and SERDES A-006031 of rev1.0.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2014-04-22 17:58:53 -07:00
Shaohui Xie
ef9a1f9a4f powerpc/t4240: updated rcw_cfg to align with default hardware configuration
Default configuration has been changed, the most important one is DDR
ref_clock which is changed from 66.67MHz to 133.33MHz. so the ratio need to
change from 24x to 12x to keep the DDR frequency. There are also some
other optimise to align with default configuration.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
2013-10-16 16:13:12 -07:00
Shaohui Xie
c79fd50382 T4240/ramboot: enable PBL tool for T4240
Added a default RCW(1_28_6_12) and PBI configure file for T4240, so it can use
PBL tool to produce the ramboot image.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-05-24 16:54:10 -05:00