Hi Christophe, Christophe Kerello <christophe.kerello@xxxxxx> wrote on Wed, 6 May 2020 11:11:09 +0200: > 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 v4: > - bindings: > - fix filename: st,stm32-fmc2-ebi.yaml > > 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 > I'm fine with the preparation patches 1-5 but the other patches need Rob's hack and probably more changes. If it's fine with you I can apply these patches for the next merge window and let more time to work on the last 5. Thanks, Miquèl
