This patchset adds the support for the STMicroelectronics FMC2 NAND flash
controller found on STM32MP SOCs.
This patchset supports:
- the command sequencer feature, a hardware accelerator for read/write
within a page
- the manual mode feature, useful for debug purpose
- a maximum 8k page size
- following ECC strength and step size
- nand-ecc-strength = <8>, nand-ecc-step-size = <512> (BCH8)
- nand-ecc-strength = <4>, nand-ecc-step-size = <512> (BCH4)
- nand-ecc-strength = <1>, nand-ecc-step-size = <512> (Extended
ecc based on HAMMING)
This patchset has been tested on Micron MT29F8G08ABACAH4 (8-bit SLC NAND)
and MT29F8G16ABACAH4 (16-bit SLC NAND)
Changes v4:
- rebase on nand/next
- replace "manual mode" by "polling mode"
Changes v3:
- modify clocks property description
- add NAND reg property description
- stm32_fmc2_nfc inherits from nand_controller structure
- rewrite stm32_fmc2_read_data/stm32_fmc2_write_data functions
to handle aligned and not aligned buffers
- replace uint8_t by u8
- use of NAND_ROW_ADDR_3 option
Changes v2:
- separate the controller structure and the NAND chip structure
- remove timings description from the device tree
- fix typo issues
- fix kbuildrobot issues
Christophe Kerello (3):
dt-bindings: mtd: stm32_fmc2: add STM32 FMC2 NAND controller
documentation
mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver
mtd: rawnand: stm32_fmc2: add polling mode
.../devicetree/bindings/mtd/stm32-fmc2-nand.txt | 61 +
drivers/mtd/nand/raw/Kconfig | 9 +
drivers/mtd/nand/raw/Makefile | 1 +
drivers/mtd/nand/raw/stm32_fmc2_nand.c | 2073 ++++++++++++++++++++
4 files changed, 2144 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/stm32-fmc2-nand.txt
create mode 100644 drivers/mtd/nand/raw/stm32_fmc2_nand.c
--
1.9.1
