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authorMichael Ellerman <mpe@ellerman.id.au>2017-11-03 10:56:32 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2018-01-28 17:00:36 +1100
commit1d65b1c886be6111f2347bd1a548bec58da17ccf (patch)
tree030094052882745a280fee9da3cdbd5011e35779 /arch/powerpc/platforms/Kconfig
parent5b8b58063029f02da573120ef4dc9079822e3cda (diff)
downloadlinux-1d65b1c886be6111f2347bd1a548bec58da17ccf.tar.bz2
powerpc/cell: Remove axonram driver
The QS21/22 IBM Cell blades had a southbridge chip called Axon. This could have DDR DIMMs attached to it, though they were not directly usable as RAM, instead they could be used as some sort of buffer, if applications were written specifically to use the block device provided by the driver. Although the driver supposedly had direct access support, it was apparently never tested (see commit 91117a20245b ("axonram: Fix bug in direct_access")). These machines have not been available for over 5 years, and were never widely in use. It seems highly unlikely anyone is using this driver. In general we're happy to leave old drivers in the tree, but because DAX is involved this driver is caught up in the ongoing work in that area, but none of the DAX folks are able to test it. So remove the driver, if any one *is* using it, we'll be happy to put it back. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms/Kconfig')
-rw-r--r--arch/powerpc/platforms/Kconfig11
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 5a96a2763e4a..14ef17e10ec9 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -293,17 +293,6 @@ config CPM2
you wish to build a kernel for a machine with a CPM2 coprocessor
on it (826x, 827x, 8560).
-config AXON_RAM
- tristate "Axon DDR2 memory device driver"
- depends on PPC_IBM_CELL_BLADE && BLOCK
- select DAX
- default m
- help
- It registers one block device per Axon's DDR2 memory bank found
- on a system. Block devices are called axonram?, their major and
- minor numbers are available in /proc/devices, /proc/partitions or
- in /sys/block/axonram?/dev.
-
config FSL_ULI1575
bool
default n