During the last months, Boris Brezillon shared his work to support
serial flashes within Linux. First, he delivered (and merged) a new
layer called spi-mem. He also initiated in Linux MTD subsystem the move
of all 'raw' NAND related code to a raw/ subdirectory, adding at the
same time a NAND core that would be shared with all NAND devices. Then,
he contributed a generic SPI-NAND driver, making use of this NAND core,
as well as some vendor code to drive a few chips.
On top of this work, I made some cleanups in the MTD layer and added an
'mtd' U-Boot command to handle all sort of MTD devices. This should
become the default command instead of having one per flash flavor
('sf', 'nand', 'spi-nand' ?).
The series has been tested on an Ocelot board PCB123 (VSC7514),
featuring a Macronix SPI NAND chip.
TL;DR: the series contains:
- A few patches from Linux to resynchronize some areas of the MTD layer.
- Various fixes and re-organization of the MTD subsystem.
- The introduction of the SPI-mem interface.
- The addition of the generic SPI-NAND driver (and its bindings).
- Several SPI NAND chip drivers (Macronix, Micron, Winbond).
- A new 'mtd' command.
- Support for spi-nand devices in mtdparts.
To test your SPI-NAND device with U-Boot simply follow these lines:
> setenv mtdparts mtdparts=spi-nand0:1m(foo),-(bar)
> ubi part bar # create a static UBI volume in the bar partition
> mtd list # show the current MTD devices/partitions
Thanks,
Miquèl
Changes since v6:
-----------------
* Squashed Boris' fixes about build issues in Travis.
* Merged Stefan Roese's contributions.
* cmd: mtdparts:
* added fallthrough comments in switch blocks deriving sizes.
* balanced debug messages to compare freed and allocated partitions.
* move mtdparts_init() declaration in mtd/partitions.h to be used in
mtd command as well.
* introduced a "compatibility" function to return what the MTD device
name could be thanks to the mtdids environment variable (which is
useless with the new partitioning logic).
* mtd: mtdpart:
* reworked the way partitions are created/handled.
* cmd: mtd:
* implement a partitioning logic that takes the best out of the MTD
layer without re-inventing the wheel. Partitions are all freed
correctly when the value of mtdparts changes.
* balance get_mtd_device() by put_mtd_device() calls.
* prevent memory leak by reorganizing the code a bit in do_mtd.
* do not reconstruct partition list when a partition is already in use
(complain about that instead).
* add support for the legacy mtdids (not needed anymore if mtdparts
directly uses the MTD device names as in Linux.
* cmd: ubi:
* clean and simplify the partition handling a bit to make use the best
use of the MTD layer as well and keep the code simple.
Changes since v5:
-----------------
* Included Boris fixup about the build issues.
* Added Rb/Ab tags from Jagan on patchs 20/21.
Changes since v4:
-----------------
* Added Jagan's Acked-by tags to every patch related to the
SPI-mem/SPI-NAND addition.
* Rebased on top of master.
Changes since v3:
-----------------
* Fixed the debug messages in spi-mem to print either Rx or Tx data.
* Fixed a Kconfig error that prevented to build mtdparts with plain
defconfig.
* Fixed a compilation error due to the above error that prevented one
file to be compiled.
* Adapted the mtd command to probe MTD partitions also.
* Declared mtd_probe_devices() in a header so mtdparts or UBI could
use it too (to probe all devices and MTD partitions in a clean way).
* As I worked on mtdparts, I found annoying and completely useless the
fact that we need to prefix the environment variable with
"mtdparts=". Canceled this obligation.
* Added one patch to allow spi-nand devices to be recognized by mtdparts
(this is purely useless but needed to be done in order to use this
command).
* Removed useless definitions of MTD device types in UBI code.
* Wrote a generic mtdparts environment variable parser, used by the mtd
command.
* Used the mtd_probe_devices() function from get_mtd_info() in
cmd/mtdparts.c to be sure the desired partition really does not exist
(otherwise it will be probed and then found).
Changes since v2:
-----------------
* Rebased on u-boot master branch.
* Removed extra-parenthesis in
"mtd: Fallback to ->_read/write() when ->_read/write_oob() is missing"
* s/fiels/files/ in "mtd: move NAND fiels into a raw/ subdirectory"
* Do not describe generic SPI device properties in SPI NAND bindings.
* Changes in the mtd command:
* Printing more information in 'mtd list' (device type, device
characteristics)
* Switch to do_div() instead of '(u32)value64b % value32b' which only
worked because value32b was a power of 2.
* Removed erase.chip option.
* By default, erase/read/write happen on the full MTD device while a
dump will only work on a single page.
Changes since v1:
-----------------
* Fixed the nand_memorg structure of the MX35LF2GE4AB chip.
* Added Reviewed-by tags from Jagan.
* Backported and squashed two patches fixing things in the SPI NAND core
received on the Linux ML.
* Backported more changes in mtdcore.c from Linux.
* Added a patch to add a fallback on mtd->_read/_write() in mtdcore.c
when mtd->_read/write_oob() is not supported.
* Removed the DT changes, useless as the DTs are not available in
mainline yet.
* Addressed Boris/Stefan comments on the 'mtd' command.
* Added support for multi-pages OOB read/write.
Boris Brezillon (7):
mtd: Fallback to ->_read/write_oob() when ->_read/write() is missing
mtd: Add sanity checks in mtd_write/read_oob()
mtd: nand: Add core infrastructure to deal with NAND devices
mtd: nand: Pass mode information to nand_page_io_req
spi: Extend the core to ease integration of SPI memory controllers
mtd: spinand: Add initial support for the MX35LF1GE4AB chip
dt-bindings: Add bindings for SPI NAND devices
Brian Norris (1):
mtd: add get/set of_node/flash_node helpers
Ezequiel Garcia (1):
mtd: Uninline mtd_write_oob and move it to mtdcore.c
Frieder Schrempf (1):
mtd: spinand: Add initial support for Winbond W25M02GV
Miquel Raynal (19):
mtd: Fallback to ->_read/write() when ->_read/write_oob() is missing
mtd: fix build issue with includes
mtd: move definitions to enlarge their range
mtd: move all flash categories inside MTD submenu
mtd: move NAND files into a raw/ subdirectory
mtd: rename nand into rawnand in Kconfig prompt
mtd: spinand: Add initial support for the MX35LF2GE4AB chip
mtd: declare MTD_PARTITIONS symbol in Kconfig
mtd: mtdpart: balance debug messages
cmd: ubi: delete useless and misleading definitions
cmd: mtdparts: add fallthrough in switch statement
cmd: mtdparts: accept spi-nand devices
cmd: mtdparts: add a generic 'mtdparts' parser
mtd: uclass: add probe function
mtd: move mtdparts_init() declaration
mtd: mtdpart: implement proper partition handling
cmd: mtd: add 'mtd' command
cmd: mtdparts: try to probe the MTD devices as a fallback
cmd: ubi: clean the partition handling
Peter Pan (2):
mtd: nand: Add core infrastructure to support SPI NANDs
mtd: spinand: Add initial support for Micron MT29F2G01ABAGD
MAINTAINERS | 6 +-
Makefile | 2 +-
README | 6 +-
arch/arm/mach-uniphier/board_late_init.c | 2 +-
cmd/Kconfig | 7 +
cmd/Makefile | 1 +
cmd/flash.c | 1 +
cmd/jffs2.c | 1 +
cmd/mtd.c | 513 +++++++
cmd/mtdparts.c | 134 +-
cmd/nand.c | 1 +
cmd/ubi.c | 100 +-
common/fdt_support.c | 1 +
common/spl/Kconfig | 2 +-
common/spl/spl_spi.c | 2 +-
doc/README.SPL | 4 +-
doc/README.arm-relocation | 2 +-
doc/README.nand | 6 +-
doc/README.zynq | 2 +-
doc/device-tree-bindings/mtd/spi-nand.txt | 5 +
drivers/Makefile | 2 +-
drivers/dfu/dfu_nand.c | 1 +
drivers/fastboot/fb_nand.c | 1 +
drivers/mtd/Kconfig | 7 +-
drivers/mtd/Makefile | 4 +-
drivers/mtd/mtd-uclass.c | 20 +
drivers/mtd/mtd_uboot.c | 1 +
drivers/mtd/mtdcore.c | 106 +-
drivers/mtd/mtdcore.h | 6 -
drivers/mtd/mtdpart.c | 389 +++--
drivers/mtd/nand/Kconfig | 299 +---
drivers/mtd/nand/Makefile | 78 +-
drivers/mtd/nand/bbt.c | 132 ++
drivers/mtd/nand/core.c | 243 ++++
drivers/mtd/nand/raw/Kconfig | 297 ++++
drivers/mtd/nand/raw/Makefile | 77 +
drivers/mtd/nand/{ => raw}/am335x_spl_bch.c | 0
drivers/mtd/nand/{ => raw}/arasan_nfc.c | 0
drivers/mtd/nand/{ => raw}/atmel_nand.c | 0
drivers/mtd/nand/{ => raw}/atmel_nand_ecc.h | 0
drivers/mtd/nand/{ => raw}/davinci_nand.c | 2 +-
drivers/mtd/nand/{ => raw}/denali.c | 0
drivers/mtd/nand/{ => raw}/denali.h | 0
drivers/mtd/nand/{ => raw}/denali_dt.c | 0
drivers/mtd/nand/{ => raw}/denali_spl.c | 0
drivers/mtd/nand/{ => raw}/fsl_elbc_nand.c | 0
drivers/mtd/nand/{ => raw}/fsl_elbc_spl.c | 0
drivers/mtd/nand/{ => raw}/fsl_ifc_nand.c | 0
drivers/mtd/nand/{ => raw}/fsl_ifc_spl.c | 0
drivers/mtd/nand/{ => raw}/fsl_upm.c | 0
drivers/mtd/nand/{ => raw}/fsmc_nand.c | 0
drivers/mtd/nand/{ => raw}/kb9202_nand.c | 0
drivers/mtd/nand/{ => raw}/kirkwood_nand.c | 0
drivers/mtd/nand/{ => raw}/kmeter1_nand.c | 0
drivers/mtd/nand/{ => raw}/lpc32xx_nand_mlc.c | 0
drivers/mtd/nand/{ => raw}/lpc32xx_nand_slc.c | 0
drivers/mtd/nand/{ => raw}/mxc_nand.c | 0
drivers/mtd/nand/{ => raw}/mxc_nand.h | 0
drivers/mtd/nand/{ => raw}/mxc_nand_spl.c | 0
drivers/mtd/nand/{ => raw}/mxs_nand.c | 0
drivers/mtd/nand/{ => raw}/mxs_nand.h | 0
drivers/mtd/nand/{ => raw}/mxs_nand_dt.c | 0
drivers/mtd/nand/{ => raw}/mxs_nand_spl.c | 0
drivers/mtd/nand/{ => raw}/nand.c | 0
drivers/mtd/nand/{ => raw}/nand_base.c | 56 -
drivers/mtd/nand/{ => raw}/nand_bbt.c | 0
drivers/mtd/nand/{ => raw}/nand_bch.c | 0
drivers/mtd/nand/{ => raw}/nand_ecc.c | 2 +-
drivers/mtd/nand/{ => raw}/nand_ids.c | 0
drivers/mtd/nand/{ => raw}/nand_plat.c | 0
drivers/mtd/nand/{ => raw}/nand_spl_load.c | 0
drivers/mtd/nand/{ => raw}/nand_spl_loaders.c | 0
drivers/mtd/nand/{ => raw}/nand_spl_simple.c | 0
drivers/mtd/nand/{ => raw}/nand_timings.c | 0
drivers/mtd/nand/{ => raw}/nand_util.c | 2 +-
drivers/mtd/nand/{ => raw}/omap_elm.c | 0
drivers/mtd/nand/{ => raw}/omap_gpmc.c | 0
drivers/mtd/nand/{ => raw}/pxa3xx_nand.c | 2 +-
drivers/mtd/nand/{ => raw}/pxa3xx_nand.h | 0
drivers/mtd/nand/{ => raw}/sunxi_nand.c | 0
drivers/mtd/nand/{ => raw}/sunxi_nand_spl.c | 0
drivers/mtd/nand/{ => raw}/tegra_nand.c | 0
drivers/mtd/nand/{ => raw}/tegra_nand.h | 0
drivers/mtd/nand/{ => raw}/vf610_nfc.c | 0
drivers/mtd/nand/{ => raw}/zynq_nand.c | 0
drivers/mtd/nand/spi/Kconfig | 7 +
drivers/mtd/nand/spi/Makefile | 4 +
drivers/mtd/nand/spi/core.c | 1254 +++++++++++++++++
drivers/mtd/nand/spi/macronix.c | 146 ++
drivers/mtd/nand/spi/micron.c | 135 ++
drivers/mtd/nand/spi/winbond.c | 143 ++
drivers/mtd/onenand/onenand_base.c | 2 -
drivers/spi/Kconfig | 7 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-mem.c | 501 +++++++
include/configs/MPC8313ERDB.h | 2 +-
include/jffs2/load_kernel.h | 8 +-
include/linux/mtd/mtd.h | 69 +-
include/linux/mtd/nand.h | 734 ++++++++++
include/linux/mtd/partitions.h | 7 +-
include/linux/mtd/spinand.h | 432 ++++++
include/spi-mem.h | 258 ++++
include/spi.h | 11 +
103 files changed, 5441 insertions(+), 805 deletions(-)
create mode 100644 cmd/mtd.c
create mode 100644 doc/device-tree-bindings/mtd/spi-nand.txt
create mode 100644 drivers/mtd/nand/bbt.c
create mode 100644 drivers/mtd/nand/core.c
create mode 100644 drivers/mtd/nand/raw/Kconfig
create mode 100644 drivers/mtd/nand/raw/Makefile
rename drivers/mtd/nand/{ => raw}/am335x_spl_bch.c (100%)
rename drivers/mtd/nand/{ => raw}/arasan_nfc.c (100%)
rename drivers/mtd/nand/{ => raw}/atmel_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/atmel_nand_ecc.h (100%)
rename drivers/mtd/nand/{ => raw}/davinci_nand.c (99%)
rename drivers/mtd/nand/{ => raw}/denali.c (100%)
rename drivers/mtd/nand/{ => raw}/denali.h (100%)
rename drivers/mtd/nand/{ => raw}/denali_dt.c (100%)
rename drivers/mtd/nand/{ => raw}/denali_spl.c (100%)
rename drivers/mtd/nand/{ => raw}/fsl_elbc_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/fsl_elbc_spl.c (100%)
rename drivers/mtd/nand/{ => raw}/fsl_ifc_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/fsl_ifc_spl.c (100%)
rename drivers/mtd/nand/{ => raw}/fsl_upm.c (100%)
rename drivers/mtd/nand/{ => raw}/fsmc_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/kb9202_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/kirkwood_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/kmeter1_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/lpc32xx_nand_mlc.c (100%)
rename drivers/mtd/nand/{ => raw}/lpc32xx_nand_slc.c (100%)
rename drivers/mtd/nand/{ => raw}/mxc_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/mxc_nand.h (100%)
rename drivers/mtd/nand/{ => raw}/mxc_nand_spl.c (100%)
rename drivers/mtd/nand/{ => raw}/mxs_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/mxs_nand.h (100%)
rename drivers/mtd/nand/{ => raw}/mxs_nand_dt.c (100%)
rename drivers/mtd/nand/{ => raw}/mxs_nand_spl.c (100%)
rename drivers/mtd/nand/{ => raw}/nand.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_base.c (98%)
rename drivers/mtd/nand/{ => raw}/nand_bbt.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_bch.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_ecc.c (99%)
rename drivers/mtd/nand/{ => raw}/nand_ids.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_plat.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_spl_load.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_spl_loaders.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_spl_simple.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_timings.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_util.c (99%)
rename drivers/mtd/nand/{ => raw}/omap_elm.c (100%)
rename drivers/mtd/nand/{ => raw}/omap_gpmc.c (100%)
rename drivers/mtd/nand/{ => raw}/pxa3xx_nand.c (99%)
rename drivers/mtd/nand/{ => raw}/pxa3xx_nand.h (100%)
rename drivers/mtd/nand/{ => raw}/sunxi_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/sunxi_nand_spl.c (100%)
rename drivers/mtd/nand/{ => raw}/tegra_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/tegra_nand.h (100%)
rename drivers/mtd/nand/{ => raw}/vf610_nfc.c (100%)
rename drivers/mtd/nand/{ => raw}/zynq_nand.c (100%)
create mode 100644 drivers/mtd/nand/spi/Kconfig
create mode 100644 drivers/mtd/nand/spi/Makefile
create mode 100644 drivers/mtd/nand/spi/core.c
create mode 100644 drivers/mtd/nand/spi/macronix.c
create mode 100644 drivers/mtd/nand/spi/micron.c
create mode 100644 drivers/mtd/nand/spi/winbond.c
create mode 100644 drivers/spi/spi-mem.c
create mode 100644 include/linux/mtd/nand.h
create mode 100644 include/linux/mtd/spinand.h
create mode 100644 include/spi-mem.h
--
2.17.1
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