Commit graph

5 commits

Author SHA1 Message Date
Tony O'Brien
76866600f5 powerpc: Enable flush and invalidate dcache by range for MPC85xx
Commit ac337168a unified functions to flush and invalidate dcache by
range. These two functions were no-ops for SoCs other than 4xx and
MPC86xx. Adding these functions seemed to be correct but introduced
issues in some drivers when the dcache was flushed. While the root
cause was under investigation, these functions were disabled in
Commit cb1629f91a for affected SoCs, including the MPC85xx, to make
the various drivers work.

On the T208x USB stopped working after v2016.07 was pulled.  After
re-enabling the dcache functions for the MPC85xx it started working
again.  The USB and DPPA Ethernet drivers have been seen as
operational after this change but other drivers cannot be tested.

Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Tony O'Brien <tony.obrien@alliedtelesis.co.nz>
Cc: Marek Vasut <marex@denx.de>
Cc: York Sun <york.sun@nxp.com>
Reviewed-by: York Sun <york.sun>
2017-01-24 13:28:31 -08:00
York Sun
cb1629f91a powerpc: Disable flush or invalidate dcache by range for some SoCs
Commit ac337168a unified functions to flush and invalidate dcache by
range. These two functions were no-op for SoCs other than 4xx and
MPC86xx. Adding these functions seemed to be correct but introduced
issues when the dcache is flushed. While the root cause is under
investigation, disable these functions for affected SoCs so various
drivers can work.

Signed-off-by: York Sun <york.sun@nxp.com>
2016-05-19 10:47:11 -07:00
Valentin Longchamp
ac337168ad powerpc: add 2 common dcache assembly functions
This patch defines the 2 flush_dcache_range and invalidate_dcache_range
functions for all the powerpc architecture. Their implementation is
borrowed from the kernel's misc_32.S file and replace the ones from
mpc86xx and ppc4xx since they were equivalent.

This is a fix for the problem introduced by this patch:
http://patchwork.ozlabs.org/patch/448849/

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2015-05-04 09:24:42 -07:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
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
Renamed from arch/ppc/lib/ppccache.S (Browse further)