The FMC2 functional block makes the interface with: synchronous and
asynchronous static devices (such as PSNOR, PSRAM or other memory-mapped
peripherals) and NAND flash memories.
Its main purposes are:
- to translate AXI transactions into the appropriate external device
protocol
- to meet the access time requirements of the external devices
All external devices share the addresses, data and control signals with the
controller. Each external device is accessed by means of a unique Chip
Select. The FMC2 performs only one access at a time to an external device.
Changes in v3:
- NAND:
- rename labels used on errors
- add in the commit log the reason to increase FMC2_TIMEOUT_MS (patch 3)
- add Miquel reviewed-by tag (patches 2/4/5/9)
- EBI:
- move in memory folder
- merge MFD and BUS drivers to avoid a MFD driver
- bindings:
- pattern name has been modified
- vendor properties have been modified
- s/_/-/
- add unit suffix (-ns) on timing properties
Christophe Kerello (10):
mtd: rawnand: stm32_fmc2: manage all errors cases at probe time
mtd: rawnand: stm32_fmc2: remove useless inline comments
mtd: rawnand: stm32_fmc2: use FMC2_TIMEOUT_MS for timeouts
mtd: rawnand: stm32_fmc2: cleanup
mtd: rawnand: stm32_fmc2: use FIELD_PREP/FIELD_GET macros
dt-bindings: mtd: update STM32 FMC2 NAND controller documentation
dt-bindings: memory-controller: add STM32 FMC2 EBI controller
documentation
memory: stm32-fmc2-ebi: add STM32 FMC2 EBI controller driver
mtd: rawnand: stm32_fmc2: use regmap APIs
mtd: rawnand: stm32_fmc2: get resources from parent node
.../memory-controllers/st,stm32-fmc2-ebi.yaml | 261 +++++
.../bindings/mtd/st,stm32-fmc2-nand.yaml | 19 +-
drivers/memory/Kconfig | 10 +
drivers/memory/Makefile | 1 +
drivers/memory/stm32-fmc2-ebi.c | 1206 ++++++++++++++++++++
drivers/mtd/nand/raw/Kconfig | 1 +
drivers/mtd/nand/raw/stm32_fmc2_nand.c | 1176 ++++++++++---------
7 files changed, 2061 insertions(+), 613 deletions(-)
create mode 100644 Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml
create mode 100644 drivers/memory/stm32-fmc2-ebi.c
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1.9.1
