[v1,0/2] Add EDAC support for Cadence ddr controller

Message

Dhananjay Vilasrao Kangude Feb. 28, 2020, 9:43 a.m. UTC

These patches add new edac driver for Cadence ddr memory controller.
Cadence controller detects single(CE) and double(UE) bit errors during
memory operations(RMW). DDR controller raised the interrupt on detection
of the ecc error event and fill the data into registers. Driver handle
the interrupt event and notify edac subsystem about ecc errors.

Changes since v1:
=================
- Made predefined arrays as static
 Fixes: 201447a5db9b ("EDAC/Cadence:Add EDAC driver for cadence memory controller")
- Replace macro 'EDAC_DIMM_PTR' with newly introduce function
- Removed unused variable root

Dhananjay Kangude (2):
  EDAC/Cadence:Add EDAC driver for cadence memory controller
  dt-bindings: edac: Add cadence ddr mc support

 .../devicetree/bindings/edac/cdns,ddr-edac.yaml    |  59 ++
 drivers/edac/Kconfig                               |   7 +
 drivers/edac/Makefile                              |   1 +
 drivers/edac/cadence_edac.c                        | 615 +++++++++++++++++++++
 4 files changed, 682 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/edac/cdns,ddr-edac.yaml
 create mode 100644 drivers/edac/cadence_edac.c


base-commit: ffa9a9758be2793d11b0c51bc2845f7dd200e261