Commit Graph

76 Commits

Author SHA1 Message Date
Chuanhong Guo 4fd62f15af mtd: nand: make mtk_ecc.c a separated module
this code will be used in mediatek snfi spi-mem controller with
pipelined ECC engine.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220424032527.673605-2-gch981213@gmail.com
2022-04-27 18:12:35 +02:00
Linus Torvalds e35a4a4e13 Core MTD changes:
* Replace the expert mode symbols with a single helper
 * Fix misuses of of_match_ptr()
 * Remove partid and partname debugfs files
 * tests: Fix eraseblock read speed miscalculation for lower partition sizes
 * TRX parser: Allow to use on MediaTek MIPS SoCs
 
 MTD driver changes:
 * spear_smi: use GFP_KERNEL
 * mchp48l640: Add SPI ID table
 * mchp23k256: Add SPI ID table
 * blkdevs: Avoid soft lockups with some mtd/spi devices
 * aspeed-smc: Improve probe resilience
 
 Hyperbus changes:
 * HBMC_AM654 should depend on ARCH_K3
 
 NAND core changes:
 * ECC:
   - Add infrastructure to support hardware engines
   - Add a new helper to retrieve the ECC context
   - Provide a helper to retrieve a pilelined engine device
 
 NAND-ECC changes:
 * Macronix ECC engine:
   - Add Macronix external ECC engine support
   - Support SPI pipelined mode
   - Make two read-only arrays static const
   - Fix compile test issue
 
 Raw NAND core changes:
 * Fix misuses of of_match_node()
 * Rework of_get_nand_bus_width()
 * Remove of_get_nand_on_flash_bbt() wrapper
 * Protect access to rawnand devices while in suspend
 * bindings: Document the wp-gpios property
 
 Rax NAND controller driver changes:
 * atmel: Fix refcount issue in atmel_nand_controller_init
 * nandsim:
   - Add NS_PAGE_BYTE_SHIFT macro to replace the repeat pattern
   - Merge repeat codes in ns_switch_state
   - Replace overflow check with kzalloc to single kcalloc
 * rockchip: Fix platform_get_irq.cocci warning
 * stm32_fmc2: Add NAND Write Protect support
 * pl353: Set the nand chip node as the flash node
 * brcmnand: Fix sparse warnings in bcma_nand
 * omap_elm: Remove redundant variable 'errors'
 * gpmi:
   - Support fast edo timings for mx28
   - Validate controller clock rate
   - Fix controller timings setting
 * brcmnand:
   - Add BCMA shim
   - BCMA controller uses command shift of 0
   - Allow platform data instantation
   - Add platform data structure for BCMA
   - Allow working without interrupts
   - Move OF operations out of brcmnand_init_cs()
   - Avoid pdev in brcmnand_init_cs()
   - Allow SoC to provide I/O operations
   - Assign soc as early as possible
 
 Onenand changes:
 * Check for error irq
 
 SPI-NAND core changes:
 * Delay a little bit the dirmap creation
 * Create direct mapping descriptors for ECC operations
 
 SPI-NAND driver changes:
 * macronix: Use random program load
 
 SPI NOR core changes:
 * Move vendor specific code out of the core into vendor drivers.
 * Unify all function and object names in the vendor modules.
 * Make setup() callback optional to improve readability.
 * Skip erase logic when the SPI_NOR_NO_ERASE flag is set at flash
   declaration.
 
 SPI changes:
 * Macronix SPI controller:
   - Fix the transmit path
   - Create a helper to configure the controller before an operation
   - Create a helper to ease the start of an operation
   - Add support for direct mapping
   - Add support for pipelined ECC operations
 * spi-mem:
   - Introduce a capability structure
   - Check the controller extra capabilities
   - cadence-quadspi/mxic: Provide capability structures
   - Kill the spi_mem_dtr_supports_op() helper
   - Add an ecc parameter to the spi_mem_op structure
 
 Binding changes:
 * Dropped mtd/cortina,gemini-flash.txt
 * Convert BCM47xx partitions to json-schema
 * Vendor prefixes: Clarify Macronix prefix
 * SPI NAND: Convert spi-nand description file to yaml
 * Raw NAND chip: Create a NAND chip description
 * Raw NAND controller:
   - Harmonize the property types
   - Fix a comment in the examples
   - Fix the reg property description
 * Describe Macronix NAND ECC engine
 * Macronix SPI controller:
   - Document the nand-ecc-engine property
   - Convert to yaml
   - The interrupt property is not mandatory
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Merge tag 'mtd/changes-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Miquel Raynal:
 "There has been a lot of activity in the MTD subsystem recently, with a
  number of SPI-NOR cleanups as well as the introduction of ECC engines
  that can be used by SPI controllers (hence a few SPI patches in here).

  Core MTD changes:
   - Replace the expert mode symbols with a single helper
   - Fix misuses of of_match_ptr()
   - Remove partid and partname debugfs files
   - tests: Fix eraseblock read speed miscalculation for lower partition
     sizes
   - TRX parser: Allow to use on MediaTek MIPS SoCs

  MTD driver changes:
   - spear_smi: use GFP_KERNEL
   - mchp48l640: Add SPI ID table
   - mchp23k256: Add SPI ID table
   - blkdevs: Avoid soft lockups with some mtd/spi devices
   - aspeed-smc: Improve probe resilience

  Hyperbus changes:
   - HBMC_AM654 should depend on ARCH_K3

  NAND core changes:
   - ECC:
      - Add infrastructure to support hardware engines
      - Add a new helper to retrieve the ECC context
      - Provide a helper to retrieve a pilelined engine device

  NAND-ECC changes:
   - Macronix ECC engine:
      - Add Macronix external ECC engine support
      - Support SPI pipelined mode
      - Make two read-only arrays static const
      - Fix compile test issue

  Raw NAND core changes:
   - Fix misuses of of_match_node()
   - Rework of_get_nand_bus_width()
   - Remove of_get_nand_on_flash_bbt() wrapper
   - Protect access to rawnand devices while in suspend
   - bindings: Document the wp-gpios property

  Rax NAND controller driver changes:
   - atmel: Fix refcount issue in atmel_nand_controller_init
   - nandsim:
      - Add NS_PAGE_BYTE_SHIFT macro to replace the repeat pattern
      - Merge repeat codes in ns_switch_state
      - Replace overflow check with kzalloc to single kcalloc
   - rockchip: Fix platform_get_irq.cocci warning
   - stm32_fmc2: Add NAND Write Protect support
   - pl353: Set the nand chip node as the flash node
   - brcmnand: Fix sparse warnings in bcma_nand
   - omap_elm: Remove redundant variable 'errors'
   - gpmi:
      - Support fast edo timings for mx28
      - Validate controller clock rate
      - Fix controller timings setting
   - brcmnand:
      - Add BCMA shim
      - BCMA controller uses command shift of 0
      - Allow platform data instantation
      - Add platform data structure for BCMA
      - Allow working without interrupts
      - Move OF operations out of brcmnand_init_cs()
      - Avoid pdev in brcmnand_init_cs()
      - Allow SoC to provide I/O operations
      - Assign soc as early as possible

  Onenand changes:
   - Check for error irq

  SPI-NAND core changes:
   - Delay a little bit the dirmap creation
   - Create direct mapping descriptors for ECC operations

  SPI-NAND driver changes:
   - macronix: Use random program load

  SPI NOR core changes:
   - Move vendor specific code out of the core into vendor drivers.
   - Unify all function and object names in the vendor modules.
   - Make setup() callback optional to improve readability.
   - Skip erase logic when the SPI_NOR_NO_ERASE flag is set at flash
     declaration.

  SPI changes:
   - Macronix SPI controller:
      - Fix the transmit path
      - Create a helper to configure the controller before an operation
      - Create a helper to ease the start of an operation
      - Add support for direct mapping
      - Add support for pipelined ECC operations
   - spi-mem:
      - Introduce a capability structure
      - Check the controller extra capabilities
      - cadence-quadspi/mxic: Provide capability structures
      - Kill the spi_mem_dtr_supports_op() helper
      - Add an ecc parameter to the spi_mem_op structure

  Binding changes:
   - Dropped mtd/cortina,gemini-flash.txt
   - Convert BCM47xx partitions to json-schema
   - Vendor prefixes: Clarify Macronix prefix
   - SPI NAND: Convert spi-nand description file to yaml
   - Raw NAND chip: Create a NAND chip description
   - Raw NAND controller:
      - Harmonize the property types
      - Fix a comment in the examples
      - Fix the reg property description
   - Describe Macronix NAND ECC engine
   - Macronix SPI controller:
      - Document the nand-ecc-engine property
      - Convert to yaml
      - The interrupt property is not mandatory"

* tag 'mtd/changes-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (104 commits)
  mtd: nand: ecc: mxic: Fix compile test issue
  mtd: nand: mxic-ecc: make two read-only arrays static const
  mtd: hyperbus: HBMC_AM654 should depend on ARCH_K3
  mtd: core: Remove partid and partname debugfs files
  dt-bindings: mtd: partitions: convert BCM47xx to the json-schema
  mtd: tests: Fix eraseblock read speed miscalculation for lower partition sizes
  mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init
  mtd: rawnand: rockchip: fix platform_get_irq.cocci warning
  mtd: spi-nor: Skip erase logic when SPI_NOR_NO_ERASE is set
  mtd: spi-nor: renumber flags
  mtd: spi-nor: slightly change code style in spi_nor_sr_ready()
  mtd: spi-nor: spansion: rename vendor specific functions and defines
  mtd: spi-nor: spansion: convert USE_CLSR to a manufacturer flag
  mtd: spi-nor: move all spansion specifics into spansion.c
  mtd: spi-nor: spansion: slightly rework control flow in late_init()
  mtd: spi-nor: micron-st: rename vendor specific functions and defines
  mtd: spi-nor: micron-st: convert USE_FSR to a manufacturer flag
  mtd: spi-nor: move all micron-st specifics into micron-st.c
  mtd: spi-nor: xilinx: correct the debug message
  mtd: spi-nor: xilinx: rename vendor specific functions and defines
  ...
2022-03-25 13:35:34 -07:00
Miquel Raynal 6cadd424ab Raw NAND core changes:
* Rework of_get_nand_bus_width()
 * Remove of_get_nand_on_flash_bbt() wrapper
 * Protect access to rawnand devices while in suspend
 * bindings: Document the wp-gpios property
 
 Rax NAND controller driver changes:
 * atmel: Fix refcount issue in atmel_nand_controller_init
 * nandsim:
   - Add NS_PAGE_BYTE_SHIFT macro to replace the repeat pattern
   - Merge repeat codes in ns_switch_state
   - Replace overflow check with kzalloc to single kcalloc
 * rockchip: Fix platform_get_irq.cocci warning
 * stm32_fmc2: Add NAND Write Protect support
 * pl353: Set the nand chip node as the flash node
 * brcmnand: Fix sparse warnings in bcma_nand
 * omap_elm: Remove redundant variable 'errors'
 * gpmi:
   - Support fast edo timings for mx28
   - Validate controller clock rate
   - Fix controller timings setting
 * brcmnand:
   - Add BCMA shim
   - BCMA controller uses command shift of 0
   - Allow platform data instantation
   - Add platform data structure for BCMA
   - Allow working without interrupts
   - Move OF operations out of brcmnand_init_cs()
   - Avoid pdev in brcmnand_init_cs()
   - Allow SoC to provide I/O operations
   - Assign soc as early as possible
 
 Onenand changes:
 * Check for error irq
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Merge tag 'nand/for-5.18' into mtd/next

Raw NAND core changes:
* Rework of_get_nand_bus_width()
* Remove of_get_nand_on_flash_bbt() wrapper
* Protect access to rawnand devices while in suspend
* bindings: Document the wp-gpios property

Rax NAND controller driver changes:
* atmel: Fix refcount issue in atmel_nand_controller_init
* nandsim:
  - Add NS_PAGE_BYTE_SHIFT macro to replace the repeat pattern
  - Merge repeat codes in ns_switch_state
  - Replace overflow check with kzalloc to single kcalloc
* rockchip: Fix platform_get_irq.cocci warning
* stm32_fmc2: Add NAND Write Protect support
* pl353: Set the nand chip node as the flash node
* brcmnand: Fix sparse warnings in bcma_nand
* omap_elm: Remove redundant variable 'errors'
* gpmi:
  - Support fast edo timings for mx28
  - Validate controller clock rate
  - Fix controller timings setting
* brcmnand:
  - Add BCMA shim
  - BCMA controller uses command shift of 0
  - Allow platform data instantation
  - Add platform data structure for BCMA
  - Allow working without interrupts
  - Move OF operations out of brcmnand_init_cs()
  - Avoid pdev in brcmnand_init_cs()
  - Allow SoC to provide I/O operations
  - Assign soc as early as possible

Onenand changes:
* Check for error irq

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2022-03-23 18:08:03 +01:00
Roger Quadros 42da5a4ba1 mtd: rawnand: omap2: Actually prevent invalid configuration and build error
The root of the problem is that we are selecting symbols that have
dependencies. This can cause random configurations that can fail.
The cleanest solution is to avoid using select.

This driver uses interfaces from the OMAP_GPMC driver so we have to
depend on it instead.

Fixes: 4cd335dae3 ("mtd: rawnand: omap2: Prevent invalid configuration and build error")
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/linux-mtd/20220219193600.24892-1-rogerq@kernel.org
2022-03-07 17:46:54 +01:00
Roger Quadros 4cd335dae3 mtd: rawnand: omap2: Prevent invalid configuration and build error
We need to select MEMORY as well otherwise OMAP_GPMC will not be built.
For simplicity let's select MEMORY and OMAP_GPMC unconditionally as
this driver depends on OMAP_GPMC driver and uses symbols from there.

Fixes: dbcb124ace ("mtd: rawnand: omap2: Select GPMC device driver for ARCH_K3")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220118123525.8020-1-rogerq@kernel.org
2022-01-25 10:32:07 +01:00
Florian Fainelli feca4cc476 mtd: rawnand: brcmnand: Add BCMA shim
Add a BCMA shim to allow us to register the brcmnand driver using the
BCMA bus which provides indirect memory mapped access to SoC registers.

There are a number of registers that need to be byte swapped because
they are natively big endian, coming directly from the NAND chip, and
there is no bus interface unlike the iProc or STB platforms that
performs the byte swapping for us.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220107184614.2670254-10-f.fainelli@gmail.com
2022-01-23 16:37:19 +01:00
Linus Torvalds 3fb561b1e0 - added support for more BCM47XX based devices
- added MIPS support for brcmstb PCIe controller
 - added Loongson 2K1000 reset driver
 - removed board support for rbtx4938/rbtx4939
 - removed support for TX4939 SoCs
 - fixes and cleanups
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Merge tag 'mips_5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - add support for more BCM47XX based devices

 - add MIPS support for brcmstb PCIe controller

 - add Loongson 2K1000 reset driver

 - remove board support for rbtx4938/rbtx4939

 - remove support for TX4939 SoCs

 - fixes and cleanups

* tag 'mips_5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (59 commits)
  MIPS: ath79: drop _machine_restart again
  PCI: brcmstb: Augment driver for MIPs SOCs
  MIPS: bmips: Remove obsolete DMA mapping support
  MIPS: bmips: Add support PCIe controller device nodes
  dt-bindings: PCI: Add compatible string for Brcmstb 74[23]5 MIPs SOCs
  MIPS: compressed: Fix build with ZSTD compression
  MIPS: BCM47XX: Add support for Netgear WN2500RP v1 & v2
  MIPS: BCM47XX: Add support for Netgear R6300 v1
  MIPS: BCM47XX: Add LEDs and buttons for Asus RTN-10U
  MIPS: BCM47XX: Add board entry for Linksys WRT320N v1
  MIPS: BCM47XX: Define Linksys WRT310N V2 buttons
  MIPS: Remove duplicated include in local.h
  MIPS: retire "asm/llsc.h"
  MIPS: rework local_t operation on MIPS64
  MIPS: fix local_{add,sub}_return on MIPS64
  mips/pci: remove redundant ret variable
  MIPS: Loongson64: Add missing of_node_put() in ls2k_reset_init()
  MIPS: new Kconfig option ZBOOT_LOAD_ADDRESS
  MIPS: enable both vmlinux.gz.itb and vmlinuz for generic
  MIPS: signal: Return immediately if call fails
  ...
2022-01-14 15:08:36 +01:00
Linus Torvalds c01d85c219 MTD core changes:
* mtdchar: Prevent unbounded allocation in MEMWRITE ioctl
 * gen_probe: Use bitmap_zalloc() when applicable
 * Introduce an expert mode for forensics and debugging purposes
 * Clear out unregistered devices a bit more
 * Provide unique name for nvmem device
 * Remove unused header file <linux/mtd/latch-addr-flash.h>
 * Fixed breaking list in __mtd_del_partition.
 
 MTD device changes:
 * sst25l, mchp48l640, mchp23k256, dataflash:
   - Warn about failure to unregister mtd device
 
 Raw NAND core changes:
 * Export nand_read_page_hwecc_oob_first()
 
 GPMC memory controller for OMAP2 NAND controller changes:
 * GPMC:
   - Add support for AM64 SoC and allow build on K3 platforms
   - Use a compatible match table when checking for NAND controller
   - Use platform_get_irq() to get the interrupt
 
 Raw NAND controller changes:
 * OMAP2 NAND controller:
   - Document the missing 'rb-gpios' DT property
   - Drop unused variable
   - Fix force_8bit flag behaviour for DMA mode
   - Move to exec_op interface
   - Use platform_get_irq() to get the interrupt
 * Renesas:
   - Add new NAND controller driver with its bindings and MAINTAINERS entry
 * Onenand:
   - Remove redundant variable ooblen
 * MPC5121:
   - Remove unused variable in ads5121_select_chip()
 * GPMI:
   - Add ERR007117 protection for nfc_apply_timings
   - Remove explicit default gpmi clock setting for i.MX6
   - Use platform_get_irq_byname() to get the interrupt
   - Remove unneeded variable
 * Ingenic:
   - JZ4740 needs 'oob_first' read page function
 * Davinci:
   - Rewrite function description
   - Avoid duplicated page read
   - Don't calculate ECC when reading page
 
 SPI NOR core changes:
 * Add Pratyush as SPI NOR co-maintainer.
 * Flash parameters initialization was done in a spaghetti way. Clean
   flash parameters initialization.
 * Rework the flash_info flags and clarify where one should be used.
 * Initialize all flash parameters based on JESD216 SFDP where possible.
   Flash parameters and settings that are SFDP discoverable should not be
   duplicated via flash_info flags at flash declaration.
 * Remove debugfs entries that duplicate sysfs entries.
 
 SPI NOR manufacturer driver changes:
 * Use late_init() hook in various drivers to make it clear that those
   flash parameters are either not declared in the JESD216 SFDP standard,
   or the SFDP tables which define those flash parameters are not defined
   by the flash.
 * Fix mtd size for s3an flashes.
 * Write 2 bytes when disabling Octal DTR mode: 1 byte long transactions are
   not allowed in 8D-8D-8D mode.
 
 Hyperbus changes:
 * Couple of fixes in Renesas hyperbus rpc-if driver to avoid crash on
   module remove and for missing check for error value in probe.
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Merge tag 'mtd/for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Miquel Raynal:
 "MTD core changes:

   - mtdchar: Prevent unbounded allocation in MEMWRITE ioctl

   - gen_probe: Use bitmap_zalloc() when applicable

   - Introduce an expert mode for forensics and debugging purposes

   - Clear out unregistered devices a bit more

   - Provide unique name for nvmem device

   - Remove unused header file <linux/mtd/latch-addr-flash.h>

   - Fixed breaking list in __mtd_del_partition.

  MTD device changes:

   - Warn about failure to unregister mtd device in sst25l, mchp48l640,
     mchp23k256, and dataflash drivers.

  Raw NAND core changes:

   - Export nand_read_page_hwecc_oob_first()

  GPMC memory controller for OMAP2 NAND controller changes:

   - Add support for AM64 SoC and allow build on K3 platforms

   - Use a compatible match table when checking for NAND controller

   - Use platform_get_irq() to get the interrupt

  Raw NAND controller changes:

   - OMAP2 NAND controller:
      - Document the missing 'rb-gpios' DT property
      - Drop unused variable
      - Fix force_8bit flag behaviour for DMA mode
      - Move to exec_op interface
      - Use platform_get_irq() to get the interrupt

   - Renesas:
      - Add new NAND controller driver with its bindings and MAINTAINERS entry

   - Onenand:
      - Remove redundant variable ooblen

   - MPC5121:
      - Remove unused variable in ads5121_select_chip()

   - GPMI:
      - Add ERR007117 protection for nfc_apply_timings
      - Remove explicit default gpmi clock setting for i.MX6
      - Use platform_get_irq_byname() to get the interrupt
      - Remove unneeded variable

   - Ingenic:
      - JZ4740 needs 'oob_first' read page function

   - Davinci:
      - Rewrite function description
      - Avoid duplicated page read
      - Don't calculate ECC when reading page

  SPI NOR core changes:

   - Add Pratyush as SPI NOR co-maintainer.

   - Flash parameters initialization was done in a spaghetti way. Clean
     flash parameters initialization.

   - Rework the flash_info flags and clarify where one should be used.

   - Initialize all flash parameters based on JESD216 SFDP where
     possible. Flash parameters and settings that are SFDP discoverable
     should not be duplicated via flash_info flags at flash declaration.

   - Remove debugfs entries that duplicate sysfs entries.

  SPI NOR manufacturer driver changes:

   - Use late_init() hook in various drivers to make it clear that those
     flash parameters are either not declared in the JESD216 SFDP
     standard, or the SFDP tables which define those flash parameters
     are not defined by the flash.

   - Fix mtd size for s3an flashes.

   - Write 2 bytes when disabling Octal DTR mode: 1 byte long
     transactions are not allowed in 8D-8D-8D mode.

  Hyperbus changes:

   - Couple of fixes in Renesas hyperbus rpc-if driver to avoid crash on
     module remove and for missing check for error value in probe"

* tag 'mtd/for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (71 commits)
  mtd: spi-nor: Remove debugfs entries that duplicate sysfs entries
  mtd: spi-nor: micron-st: write 2 bytes when disabling Octal DTR mode
  mtd: spi-nor: spansion: write 2 bytes when disabling Octal DTR mode
  mtd: spi-nor: core: use 2 data bytes for template ops
  mtd: spi-nor: Constify part specific fixup hooks
  mtd: spi-nor: core: Remove reference to spi-nor.c
  mtd: rawnand: gpmi: Use platform_get_irq_byname() to get the interrupt
  mtd: rawnand: omap_elm: Use platform_get_irq() to get the interrupt
  mtd: rawnand: omap2: Select GPMC device driver for ARCH_K3
  memory: omap-gpmc: Use a compatible match table when checking for NAND controller
  memory: omap-gpmc: Add support for GPMC on AM64 SoC
  dt-bindings: memory-controllers: ti,gpmc: Add compatible for AM64
  memory: omap-gpmc: Use platform_get_irq() to get the interrupt
  MAINTAINERS: Add an entry for Renesas NAND controller
  mtd: rawnand: renesas: Add new NAND controller driver
  dt-bindings: mtd: renesas: Describe Renesas R-Car Gen3 & RZ/N1 NAND controller
  mtd: rawnand: gpmi: remove unneeded variable
  mtd: rawnand: omap2: drop unused variable
  mtd: rawnand: omap2: fix force_8bit flag behaviour for DMA mode
  mtd: rawnand: omap2: Add compatible for AM64 SoC
  ...
2022-01-11 11:35:28 -08:00
Thomas Bogendoerfer fc5bb239d5 MIPS: TXX9: Remove TX4939 SoC support
After removal of RBTX4939 board support remove code for the TX4939 SoC.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
2022-01-02 14:12:03 +01:00
Miquel Raynal 2997e48716 Memory controller drivers for v5.17 - OMAP GPMC
1. Add support for AM64 SoC.
 2. Minor improvement: use platform_get_irq().
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Merge tag 'memory-controller-drv-omap-5.17' into nand/next

Memory controller drivers for v5.17 - OMAP GPMC

1. Add support for AM64 SoC.
2. Minor improvement: use platform_get_irq().

[miquel.raynal@bootlin.com: A first commit introduced a new omap
compatible and another moved the IDs to a header which created a
conflict: moving the new ID as well in the header fixed it.]

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2021-12-31 12:45:57 +01:00
Roger Quadros dbcb124ace mtd: rawnand: omap2: Select GPMC device driver for ARCH_K3
The GPMC device driver is required for NAND controller
to work on K3 Architecture. Select it if required.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20211221131757.2030-5-rogerq@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2021-12-22 16:51:43 +01:00
Miquel Raynal d8701fe890 mtd: rawnand: renesas: Add new NAND controller driver
Introduce Renesas NAND controller driver which currently supports the
following features on R-Car Gen3 and RZ/N1 SoCs:
- All ONFI timing modes
- Different configurations of its internal ECC controller
- On-die (not tested) and software ECC support
- Several chips (not tested)
- Subpage accesses
- DMA and PIO

This controller was originally provided by Evatronix before being bought
by Cadence.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Ralph Siemsen <ralph.siemsen@linaro.org>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/linux-mtd/20211217142033.353599-3-miquel.raynal@bootlin.com
2021-12-21 18:06:35 +01:00
Roger Quadros 35da0c4545 mtd: rawnand: omap2: Allow build on K3 platforms
K3 platforms come with GPMC. Enable GPMC build for
K3 platforms.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211209090458.24830-3-rogerq@kernel.org
2021-12-17 11:25:58 +01:00
Cai Huoqing 2e69e18aec mtd: rawnand: denali: Add the dependency on HAS_IOMEM
The helper function devm_platform_ioremap_resource_xxx()
needs HAS_IOMEM enabled, so add the dependency on HAS_IOMEM.

Fixes: 5f14a8ca1b ("mtd: rawnand: denali: Make use of the helper function devm_platform_ioremap_resource_byname()")

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211109134758.417-1-caihuoqing@baidu.com
2021-12-03 14:33:43 +01:00
Colin Ian King c5b9ee9c36 mtd: rawnand: Fix a couple of spelling mistakes in Kconfig
There are two spelling mistakes in the Kconfig text. Fix them.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210704094705.37175-1-colin.king@canonical.com
2021-07-16 01:07:05 +02:00
Miquel Raynal 08d8c62164 mtd: rawnand: pl353: Add support for the ARM PL353 SMC NAND controller
This hardware controller is embedded in XilinX Zynq-7000 SoCs and has
partial support for Hamming ECC correction.

This work is inspired from the original contributions of Punnaiah
Choudary Kalluri and Naga Sureshkumar Relli.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Michael Walle <michael@walle.cc> [on zynq-7000]
Link: https://lore.kernel.org/linux-mtd/20210610082040.2075611-19-miquel.raynal@bootlin.com
2021-06-18 09:45:21 +02:00
Linus Torvalds 69e9b12a27 MTD core changes:
* Initial support for BCM4908 partitions
 
 Raw NAND controller drivers:
 * Intel: Fix an error handling path in 'ebu_dma_start()'
 * Tango: Remove the driver
 * Marvell: Convert comma to semicolon
 * MXC: Convert comma to semicolon
 * Qcom: Add support for Qcom SMEM parser
 
 Related MTD changes:
 * parsers: Add Qcom SMEM parser
 
 SPI NOR core changes:
 * Add non-uniform erase fixes.
 * Add Global Block Unlock command. It is defined by few flash
  vendors, and it is used for now just by sst.
 
 SPI NOR controller drivers changes:
 * intel-spi: Add support for Intel Alder Lake-P SPI serial flash.
 * hisi-sfc: Put child node np on error path.
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Merge tag 'mtd/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Richard Weinberger:
 "MTD core changes:
   - Initial support for BCM4908 partitions

  Raw NAND controller drivers:
   - Intel: Fix an error handling path in 'ebu_dma_start()'
   - Tango: Remove the driver
   - Marvell: Convert comma to semicolon
   - MXC: Convert comma to semicolon
   - Qcom: Add support for Qcom SMEM parser

  Related MTD changes:
   - parsers: Add Qcom SMEM parser

  SPI NOR core changes:
   - Add non-uniform erase fixes.
   - Add Global Block Unlock command. It is defined by few flash
     vendors, and it is used for now just by sst.

  SPI NOR controller drivers changes:
   - intel-spi: Add support for Intel Alder Lake-P SPI serial flash.
   - hisi-sfc: Put child node np on error path"

* tag 'mtd/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (23 commits)
  dt-bindings: mtd: add binding for BCM4908 partitions
  dt-bindings: mtd: move partition binding to its own file
  mtd: spi-nor: sst: Add support for Global Unlock on sst26vf
  mtd: spi-nor: Add Global Block Unlock command
  mtd: spi-nor: core: Add erase size check for erase command initialization
  mtd: spi-nor: core: Fix erase type discovery for overlaid region
  mtd: spi-nor: sfdp: Fix last erase region marking
  mtd: spi-nor: sfdp: Fix wrong erase type bitmask for overlaid region
  mtd: rawnand: intel: Fix an error handling path in 'ebu_dma_start()'
  mtd: rawnand: tango: Remove the driver
  mtd: rawnand: marvell: convert comma to semicolon
  mtd: st_spi_fsm: convert comma to semicolon
  mtd: convert comma to semicolon
  mtd: parsers: afs: Fix freeing the part name memory in failure
  mtd: parser: imagetag: fix error codes in bcm963xx_parse_imagetag_partitions()
  mtd: phram: use div_u64_rem to stop overwrite len in phram_setup
  mtd: remove redundant assignment to pointer eb
  mtd: spi-nor: hisi-sfc: Put child node np on error path
  mtd: spi-nor: intel-spi: Add support for Intel Alder Lake-P SPI serial flash
  mtd: rawnand: qcom: Add support for Qcom SMEM parser
  ...
2021-02-21 13:54:33 -08:00
Arnd Bergmann 94d07f6a53 mtd: rawnand: tango: Remove the driver
The tango platform is getting removed [1], so the driver is no
longer needed.

[1] https://lore.kernel.org/linux-arm-kernel/20210120124812.2800027-1-arnd@kernel.org/T/

Cc: Marc Gonzalez <marc.w.gonzalez@free.fr>
Cc: Mans Rullgard <mans@mansr.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210120150555.1610132-1-arnd@kernel.org
2021-02-01 18:59:19 +01:00
Arnd Bergmann ce1380c9f4 ARM: remove u300 platform
The Ericsson U300 platform was one of two ARM929 based SoC platforms for
mobile phones in ST-Ericsson after the merger of Ericsson with ST-NXP
into ST-Ericsson, the other one being the ST Nomadik.

The platform was not widely adopted in Linux based systems and was
replaced with the far superior ST-Ericsson U8500 in 2011, but Linus
Walleij kept maintaining the code for the whole time.

Linus continues to use the Nomadik machine, but decided to drop
u300 from the kernel as part of this year's spring cleaning.
Thanks for having maintained it all these years.

Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/lkml/CACRpkdbJkiHR9FSfJTH_5d_qRU1__dRXHM1TL40iqNRKbGQfrQ@mail.gmail.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-01-20 11:42:23 +01:00
Yifeng Zhao 058e0e847d mtd: rawnand: rockchip: NFC driver for RK3308, RK2928 and others
This driver supports Rockchip NFC (NAND Flash Controller) found on RK3308,
RK2928, RKPX30, RV1108 and other SOCs. The driver has been tested using
8-bit NAND interface on the ARM based RK3308 platform.

Support Rockchip SoCs and NFC versions:
- PX30 and RK3326(NFCv900).
	ECC: 16/40/60/70 bits/1KB.
	CLOCK: ahb and nfc.
- RK3308 and RV1108(NFCv800).
	ECC: 16 bits/1KB.
	CLOCK: ahb and nfc.
- RK3036 and RK3128(NFCv622).
	ECC: 16/24/40/60 bits/1KB.
	CLOCK: ahb and nfc.
- RK3066, RK3188 and RK2928(NFCv600).
	ECC: 16/24/40/60 bits/1KB.
	CLOCK: ahb.

Supported features:
- Read full page data by DMA.
- Support HW ECC(one step is 1KB).
- Support 2 - 32K page size.
- Support 8 CS(depend on SoCs)

Limitations:
- No support for the ecc step size is 512.
- Untested on some SoCs.
- No support for subpages.
- No support for the builtin randomizer.
- The original bad block mask is not supported. It is recommended to use
  the BBT(bad block table).

Suggested-by: Johan Jonker <jbx6244@gmail.com>
Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201210002134.5686-3-yifeng.zhao@rock-chips.com
2020-12-10 22:37:33 +01:00
Ramuthevar Vadivel Murugan 0b1039f016 mtd: rawnand: Add NAND controller support on Intel LGM SoC
This patch adds the new IP of Nand Flash Controller(NFC) support
on Intel's Lightning Mountain(LGM) SoC.

DMA is used for burst data transfer operation, also DMA HW supports
aligned 32bit memory address and aligned data access by default.
DMA burst of 8 supported. Data register used to support the read/write
operation from/to device.

Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201110012333.18647-3-vadivel.muruganx.ramuthevar@linux.intel.com
2020-12-10 22:37:32 +01:00
Fabio Estevam 0f6b791955 mtd: rawnand: mxc: Remove platform data support
i.MX is a devicetree-only platform now and the existing platform data
support in this driver was only useful for old non-devicetree platforms.

Get rid of the platform data support since it is no longer used.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201110121908.19400-1-festevam@gmail.com
2020-12-10 22:37:31 +01:00
Miquel Raynal 5180a62c12 mtd: nand: ecc-hamming: Let the software Hamming ECC engine be unselected
There is no reason to always embed the software Hamming ECC engine
implementation. By default it is (with raw NAND), but we can let the
user decide.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200929230124.31491-19-miquel.raynal@bootlin.com
2020-12-10 22:37:30 +01:00
Miquel Raynal e5acf9c862 mtd: nand: ecc-hamming: Move Hamming code to the generic NAND layer
Hamming ECC code might be later re-used by the SPI NAND layer.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200929230124.31491-12-miquel.raynal@bootlin.com
2020-12-10 22:37:29 +01:00
Miquel Raynal cdbe8df5e2 mtd: nand: ecc-bch: Move BCH code to the generic NAND layer
BCH ECC code might be later re-used by the SPI NAND layer.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200929230124.31491-3-miquel.raynal@bootlin.com
2020-11-30 09:27:32 +01:00
Miquel Raynal c441bcd312 mtd: rawnand: Make use of the ECC framework
Just enable the ECC framework with raw NAND so that we can drop, one
by one, all the unnecessary/redundant definitions.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200827085208.16276-17-miquel.raynal@bootlin.com
2020-09-28 15:59:49 +02:00
Richard Weinberger 6a1380271b Core changes:
* Drop useless 'depends on' in Kconfig
 * Add an extra level in the Kconfig hierarchy
 * Trivial spellings
 * Dynamic allocation of the interface configurations
 * Dropping the default ONFI timing mode
 * Various cleanup (types, structures, naming, comments)
 * Hide the chip->data_interface indirection
 * Add the generic rb-gpios property
 * Add the ->choose_interface_config() hook
 * Introduce nand_choose_best_sdr_timings()
 * Use default values for tPROG_max and tBERS_max
 * Avoid redefining tR_max and tCCS_min
 * Add a helper to find the closest ONFI mode
 * bcm63xx MTD parsers: simplify CFE detection
 
 Raw NAND controller drivers changes:
 * fsl-upm: Deprecation of specific DT properties
 * fsl_upm: Driver rework and cleanup in favor of ->exec_op()
 * Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use
 * brcmnand: ECC error handling on EDU transfers
 * brcmnand: Don't default to EDU transfers
 * qcom: Set BAM mode only if not set already
 * qcom: Avoid write to unavailable register
 * gpio: Driver rework in favor of ->exec_op()
 * tango: ->exec_op() conversion
 * mtk: ->exec_op() conversion
 
 Raw NAND chip drivers changes:
 * toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4
 * toshiba: Implement ->choose_interface_config() for TC58NVG0S3E
 * toshiba: Implement ->choose_interface_config() for TC58TEG5DCLTA00
 * hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC
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Merge tag 'nand/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next

Core changes:
* Drop useless 'depends on' in Kconfig
* Add an extra level in the Kconfig hierarchy
* Trivial spellings
* Dynamic allocation of the interface configurations
* Dropping the default ONFI timing mode
* Various cleanup (types, structures, naming, comments)
* Hide the chip->data_interface indirection
* Add the generic rb-gpios property
* Add the ->choose_interface_config() hook
* Introduce nand_choose_best_sdr_timings()
* Use default values for tPROG_max and tBERS_max
* Avoid redefining tR_max and tCCS_min
* Add a helper to find the closest ONFI mode
* bcm63xx MTD parsers: simplify CFE detection

Raw NAND controller drivers changes:
* fsl-upm: Deprecation of specific DT properties
* fsl_upm: Driver rework and cleanup in favor of ->exec_op()
* Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use
* brcmnand: ECC error handling on EDU transfers
* brcmnand: Don't default to EDU transfers
* qcom: Set BAM mode only if not set already
* qcom: Avoid write to unavailable register
* gpio: Driver rework in favor of ->exec_op()
* tango: ->exec_op() conversion
* mtk: ->exec_op() conversion

Raw NAND chip drivers changes:
* toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4
* toshiba: Implement ->choose_interface_config() for TC58NVG0S3E
* toshiba: Implement ->choose_interface_config() for TC58TEG5DCLTA00
* hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC
2020-08-07 08:54:16 +02:00
Christophe Kerello fbd9b5437b mtd: rawnand: stm32_fmc2: get resources from parent node
FMC2 EBI support has been added. Common resources (registers base
address and clock) can now be shared between the 2 drivers using
"st,stm32mp1-fmc2-nfc" compatible string. It means that the
common resources should now be found in the parent device when EBI
node is available.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1591975362-22009-7-git-send-email-christophe.kerello@st.com
2020-07-07 20:58:21 +02:00
Christophe Kerello 51c88a8d3b mtd: rawnand: stm32_fmc2: use regmap APIs
This patch uses regmap APIs to access all FMC2 registers.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1591975362-22009-6-git-send-email-christophe.kerello@st.com
2020-07-07 20:58:19 +02:00
Miquel Raynal 6232095cc5 mtd: nand: Drop useless 'depends on' in Kconfig
Both OneNAND and raw NAND bits can't be compiled if MTD is disabled
because of the if/endif logic in drivers/mtd/Kconfig. There is no need
for an extra "depends on MTD" in their respective Kconfig files.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200529002517.3546-12-miquel.raynal@bootlin.com
2020-06-26 08:35:03 +02:00
Miquel Raynal 88ffef1b65 mtd: rawnand: arasan: Support the hardware BCH ECC engine
Add support for the hardware ECC BCH engine.

Please mind that this engine has an important limitation:
BCH implementation does not inform the user when an uncorrectable ECC
error occurs. To workaround this, we avoid using the hardware engine
in the read path and do the computation with the software BCH
implementation, which is faster than mixing hardware (for correction)
and software (for verification).

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-9-miquel.raynal@bootlin.com
2020-05-26 21:37:25 +02:00
Miquel Raynal 197b88fecc mtd: rawnand: arasan: Add new Arasan NAND controller
Add the Arasan NAND controller driver. This brings only NAND
controller support. The ECC engine being a bit subtle, hardware ECC
support will be added in a second time.

This work is based on contributions from Naga Sureshkumar Relli.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-8-miquel.raynal@bootlin.com
2020-05-24 22:34:55 +02:00
Boris Brezillon 767727b927 mtd: rawnand: Remove the cmx270 NAND controller driver
The CM-X270 board has been removed, we can remove the custom NAND
driver as well.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200518163300.304732-1-boris.brezillon@collabora.com
2020-05-24 20:39:53 +02:00
Brendan Higgins baebaa2b13 mtd: rawnand: add unspecified HAS_IOMEM dependency
Currently CONFIG_MTD_NAND_CADENCE implicitly depends on
CONFIG_HAS_IOMEM=y; consequently, on architectures without IOMEM we get
the following build error:

ld: drivers/mtd/nand/raw/cadence-nand-controller.o: in function `cadence_nand_dt_probe.cold.31':
drivers/mtd/nand/raw/cadence-nand-controller.c:2969: undefined reference to `devm_platform_ioremap_resource'
ld: drivers/mtd/nand/raw/cadence-nand-controller.c:2977: undefined reference to `devm_ioremap_resource'

Fix the build error by adding the unspecified dependency.

Reported-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-27 17:44:21 +01:00
Piotr Sroka ec4ba01e89 mtd: rawnand: Add new Cadence NAND driver to MTD subsystem
Add new Cadence NAND driver to MTD subsystem

Signed-off-by: Piotr Sroka <piotrs@cadence.com>
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-10-04 18:02:22 +02:00
Arnd Bergmann 419a7a1f16 mtd: rawnand: remove w90x900 driver
The ARM w90x900 platform is getting removed, so this driver is obsolete.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-08-26 09:25:41 +02:00
Mason Yang 738b0ca55f mtd: rawnand: Add Macronix raw NAND controller driver
Add a driver for Macronix raw NAND controller.

Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-08-26 09:25:41 +02:00
Thomas Gleixner ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
Anders Roxell 7019ac5d3b mtd: rawnand: fix build dependency
When enabling CONFIG_MTD_NAND_ECC_SW_BCH as a module, the
MTD_NAND_ECC_SW_BCH depends on MTD_NAND, but the module controlled by
MTD_NAND links against the module controlled by MTD_NAND_ECC_SW_BCH.
This leads to the following link failure.

aarch64-linux-gnu-ld: drivers/mtd/nand/raw/nand_base.o: in function `nand_cleanup':
../drivers/mtd/nand/raw/nand_base.c:5886: undefined reference to `nand_bch_free'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5886:(.text+0x9928): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `nand_bch_free'
aarch64-linux-gnu-ld: drivers/mtd/nand/raw/nand_base.o: in function `nand_set_ecc_soft_ops':
../drivers/mtd/nand/raw/nand_base.c:5093: undefined reference to `nand_bch_calculate_ecc'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5093:(.text+0xe914): relocation truncated to fit: R_AARCH64_ADR_PREL_PG_HI21 against undefined symbol `nand_bch_calculate_ecc'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5093: undefined reference to `nand_bch_calculate_ecc'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5094: undefined reference to `nand_bch_correct_data'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5094:(.text+0xe934): relocation truncated to fit: R_AARCH64_ADR_PREL_PG_HI21 against undefined symbol `nand_bch_correct_data'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5094: undefined reference to `nand_bch_correct_data'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5148: undefined reference to `nand_bch_init'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5148:(.text+0xebbc): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `nand_bch_init'

Rework CONFIG_MTD_NAND_ECC_SW_BCH from tristate to bool,
and then link the nand_bch.o file into nand.ko if its enabled.

Fixes: 51ef1d0b2095 ("mtd: nand: Clarify Kconfig entry for software BCH ECC algorithm")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-04-18 08:54:01 +02:00
Miquel Raynal 72c5af0027 mtd: rawnand: Clarify Kconfig entry MTD_NAND
MTD_NAND is large and encloses much more than what the symbol is
actually used for: raw NAND. Clarify the symbol by naming it
MTD_RAW_NAND instead.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-04-18 08:54:00 +02:00
Miquel Raynal e787be1f1d mtd: rawnand: Change Kconfig titles and re-order a bit the list
This list is a mess, while some items should probably not be in the
raw/ sub-directory, others are definitely at the right place but not
with the right description. Write uniform titles and group IPs by
vendor.

NAND controllers will appear under the list named "Raw/parallel NAND
flash controllers" while the other drivers will appear under
"Misc". Software ECC engines will later be moved out of the raw/
directory.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-04-18 08:54:00 +02:00
Miquel Raynal 9bb94643b9 mtd: nand: Clarify Kconfig entry for software Hamming ECC entries
The software Hamming ECC correction implementation is referred as
MTD_NAND_ECC which is too generic. Rename it
MTD_NAND_ECC_SW_HAMMING. Also rename MTD_NAND_ECC_SMC which is an
SMC quirk in the Hamming implementation as
MTD_NAND_ECC_SW_HAMMING_SMC.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-04-18 08:54:00 +02:00
Miquel Raynal 714c068228 mtd: nand: Clarify Kconfig entry for software BCH ECC algorithm
There is no point in having two distinct entries, merge them and
rename the symbol for more clarity: MTD_NAND_ECC_SW_BCH

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-04-18 08:54:00 +02:00
Boris Brezillon a7ab085d7c mtd: rawnand: Initialize the nand_device object
In order to use some of the nanddev_xxx() helpers, we need to
initialize the nand_device object embedded in nand_chip using
nanddev_init(). This requires implementing nand_ops.

We also drop useless mtd->xxx initialization when they're already taken
case of by nanddev_init().

Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
2019-04-08 10:21:12 +02:00
Paul Cercueil 1838a7b31f mtd: rawnand: Move drivers for Ingenic SoCs to subfolder
Before adding support for more SoCs and seeing the number of files for
these drivers grow, we move them to their own subfolder to keep it tidy.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-03-21 16:56:18 +01:00
Liang Yang 8fae856c53 mtd: rawnand: meson: add support for Amlogic NAND flash controller
Add initial support for the Amlogic NAND flash controller which is
available on Meson SoCs.

Signed-off-by: Liang Yang <liang.yang@amlogic.com>
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05 16:56:09 +01:00
Christophe Kerello 2cd457f328 mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver
The driver adds the support for the STMicroelectronics FMC2 NAND
Controller found on STM32MP SOCs.

This patch is based on FMC2 command sequencer.
The purpose of the command sequencer is to facilitate the programming
and the reading of NAND flash pages with the ECC and to free the CPU
of sequencing tasks.
It requires one DMA channel for write and two DMA channels for read
operations.

Only NAND_ECC_HW mode is actually supported.
The driver supports a maximum 8k page size.
The following ECC strength and step size are currently supported:
 - 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 patch has been tested on Micron MT29F8G08ABACAH4 and
MT29F8G16ABACAH4

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05 15:39:37 +01:00
Boris Brezillon fbb080a1fc mtd: rawnand: ams-delta: Allow this driver to be compiled when COMPILE_TEST=y
Drop the asm and mach headers inclusion and allow this driver to be
compiled when COMPILE_TEST=y in order to increase compile-test
coverage.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-12-07 10:38:24 +01:00
Boris Brezillon 64ddd5d857 mtd: rawnand: Remove docg4
The diskonchip G4 driver does not fit very well in the raw/parallel
NAND framework simply because such chips have an internal controller
translating DoC-specific commands into NAND ones.

Keeping such a driver in the raw NAND framework is a real burden for
NAND maintainers.

Not to mention that some parts of this driver are a bit worrisome:

- writes are done by subpages, even though we're interfacing with an MLC
  chip which are known to not support subpage writes very well (it might
  be that the FTL handles the complexity for us though)

- some part of the code are simply ignoring return codes of function that
  can fail in a few occasions

- there's a hack to support OOB writes when no data is provided. This
  operation is not supported by the chip and should have been rejected,
  and nandwrite and other userspace tools should have been patched to
  deal with such devices

- the driver is apparently broken when ignore_badblocks module param
  is not set to 1 and nobody noticed that (don't know since when this
  is the case, but it's not a recent change)
  http://lists.infradead.org/pipermail/linux-mtd/2018-July/082472.html

Add to that the fact that we already have a docg3 driver in
drivers/mtd/devices/docg3.c and, looking at the code (and regs), it
seems docg3 and docg4 have a lot in common (even the author of this
driver seemed to have realized that interfacing with the raw NAND
framework might have been a bad idea
http://lists.infradead.org/pipermail/linux-mtd/2012-January/039517.html).

For all these reasons, I'm proposing to remove this driver. If anyone
ever wants to add support for this chip back, I'd suggest extending
the docg3 driver instead of adding a completely new driver.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Cc: Mike Dunn <mikedunn@newsguy.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Sergey Larin <cerg2010cerg2010@mail.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-10-03 11:12:25 +02:00
Boris Brezillon 9805d4bcf8 mtd: rawnand: atmel: Select GENERIC_ALLOCATOR
The driver uses genalloc functions. Select GENERIC_ALLOCATOR to prevent
build errors when selected through COMPILE_TEST.

Fixes: 88a40e7dca ("mtd: rawnand: atmel: Allow selection of this driver when COMPILE_TEST=y")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
2018-08-11 18:07:44 +02:00