Commit Graph

54 Commits

Author SHA1 Message Date
Kumar Gala
79e4e6480b powerpc/8xxx: Enabled hwconfig for memory interleaving
Replace environmental variables memctl_intlv_ctl and ba_intlv_ctl with
hwconfig parameters. The syntax is

    setenv hwconfig "fsl_ddr:ctlr_intlv=<mode>,bank_intlv=<mode>"

The mode values for memory controller interleaving are
    cacheline
    page
    bank
    superbank

The mode values for bank interleaving are
    cs0_cs1
    cs2_cs3
    cs0_cs1_and_cs2_cs3
    cs0_cs1_cs2_cs3

Signed-off-by: York Sun <yorksun@freescale.com>
2010-07-26 13:16:08 -05:00
York Sun
bcb6c2bb84 Enabled support for Rev 1.3 SPD for DDR2 DIMMs
SPD has minor change from Rev 1.2 to 1.3. This patch enables Rev 1.3.
The difference has ben examined and the code is compatible.
Speed bins is not verified on hardware for CL7 at this moment.

This patch also enables SPD Rev 1.x where x is up to "F". According to SPD
spec, the lower nibble is optionally used to determine which additinal bytes
or attribute bits have been defined. Software can safely use defaults. However,
the upper nibble should always be checked.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-05-12 04:54:30 -05:00
Dave Liu
99bac479dd fsl-ddr: Add extra cycle to turnaround times
Add an extra cycle turnaround time to read->write to ensure stability
at high DDR frequencies.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-04-26 22:37:53 -05:00
Stefan Roese
a47a12becf Move arch/ppc to arch/powerpc
As discussed on the list, move "arch/ppc" to "arch/powerpc" to
better match the Linux directory structure.

Please note that this patch also changes the "ppc" target in
MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
is kept as an alias for now, to not break compatibility with
scripts using this name.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Anatolij Gustschin <agust@denx.de>
2010-04-21 23:42:38 +02:00