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authorGrant Erickson <gerickson@nuovations.com>2009-04-02 16:58:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-02 19:05:03 -0700
commitdba7a77c0e403f859ff67ee39f833b6bffb4d49e (patch)
tree6ba4e2803616be9ab514654a111e374d4e7345b2 /drivers/edac/Kconfig
parent4577ca55681eaecb76e75beb99c098e0cdf7a92e (diff)
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edac: new ppc4xx driver module
This adds support for an EDAC memory controller adaptation driver for the "ibm,sdram-4xx-ddr2" ECC controller realized in the AMCC PowerPC 405EX[r]. At present, this driver has been developed and tested against the controller realization in the AMCC PPC405EX[r] on the AMCC Kilauea and Haleakala boards (256 MiB w/o ECC memory soldered onto the board) and a proprietary board based on those designs (128 MiB ECC memory, also soldered onto the board). In the future, dynamic feature detection and handling needs to be added for the other realizations of this controller found in the 440SP, 440SPe, 460EX, 460GT and 460SX. Eventually, this driver will likely be evolved and adapted to the above variant realizations of this controller as well as broken apart to handle the other known ECC-capable controllers prevalent in other PPC4xx processors: - IBM SDRAM (405GP, 405CR and 405EP) "ibm,sdram-4xx" - IBM DDR1 (440GP, 440GX, 440EP and 440GR) "ibm,sdram-4xx-ddr" - Denali DDR1/DDR2 (440EPX and 440GRX) "denali,sdram-4xx-ddr2" [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Grant Erickson <gerickson@nuovations.com> Signed-off-by: Doug Thompson <dougthompson@xmission.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/edac/Kconfig')
-rw-r--r--drivers/edac/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 0a7f83e..41d73ef 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -181,4 +181,13 @@ config EDAC_CELL
Cell Broadband Engine internal memory controller
on platform without a hypervisor
+config EDAC_PPC4XX
+ tristate "PPC4xx IBM DDR2 Memory Controller"
+ depends on EDAC_MM_EDAC && 4xx
+ help
+ This enables support for EDAC on the ECC memory used
+ with the IBM DDR2 memory controller found in various
+ PowerPC 4xx embedded processors such as the 405EX[r],
+ 440SP, 440SPe, 460EX, 460GT and 460SX.
+
endif # EDAC
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