14b661ebb6
General changes:
* Unconfuse get_unmapped_area and point/unpoint driver methods
* New partition parser: sharpslpart
* Kill GENERIC_IO
* Various fixes
NAND changes:
* Add a flag to mark NANDs that require 3 address cycles to encode a
page address
* Set a default ECC/free layout when NAND_ECC_NONE is requested
* Fix a bug in panic_nand_write()
* Another batch of cleanups for the denali driver
* Fix PM support in the atmel driver
* Remove support for platform data in the omap driver
* Fix subpage write in the omap driver
* Fix irq handling in the mtk driver
* Change link order of mtk_ecc and mtk_nand drivers to speed up boot
time
* Change log level of ECC error messages in the mxc driver
* Patch the pxa3xx driver to support Armada 8k platforms
* Add BAM DMA support to the qcom driver
* Convert gpio-nand to the GPIO desc API
* Fix ECC handling in the mt29f driver
SPI-NOR changes:
* Introduce system power management support
* New mechanism to select the proper .quad_enable() hook by JEDEC ID,
when needed, instead of only by manufacturer ID
* Add support to new memory parts from Gigadevice, Winbond, Macronix and
Everspin
* Maintainance for Cadence, Intel, Mediatek and STM32 drivers
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Merge tag 'for-linus-20171120' of git://git.infradead.org/linux-mtd
Pull MTD updates from Richard Weinberger:
"General changes:
- Unconfuse get_unmapped_area and point/unpoint driver methods
- New partition parser: sharpslpart
- Kill GENERIC_IO
- Various fixes
NAND changes:
- Add a flag to mark NANDs that require 3 address cycles to encode a
page address
- Set a default ECC/free layout when NAND_ECC_NONE is requested
- Fix a bug in panic_nand_write()
- Another batch of cleanups for the denali driver
- Fix PM support in the atmel driver
- Remove support for platform data in the omap driver
- Fix subpage write in the omap driver
- Fix irq handling in the mtk driver
- Change link order of mtk_ecc and mtk_nand drivers to speed up boot
time
- Change log level of ECC error messages in the mxc driver
- Patch the pxa3xx driver to support Armada 8k platforms
- Add BAM DMA support to the qcom driver
- Convert gpio-nand to the GPIO desc API
- Fix ECC handling in the mt29f driver
SPI-NOR changes:
- Introduce system power management support
- New mechanism to select the proper .quad_enable() hook by JEDEC
ID, when needed, instead of only by manufacturer ID
- Add support to new memory parts from Gigadevice, Winbond, Macronix
and Everspin
- Maintainance for Cadence, Intel, Mediatek and STM32 drivers"
* tag 'for-linus-20171120' of git://git.infradead.org/linux-mtd: (85 commits)
mtd: Avoid probe failures when mtd->dbg.dfs_dir is invalid
mtd: sharpslpart: Add sharpslpart partition parser
mtd: Add sanity checks in mtd_write/read_oob()
mtd: remove the get_unmapped_area method
mtd: implement mtd_get_unmapped_area() using the point method
mtd: chips/map_rom.c: implement point and unpoint methods
mtd: chips/map_ram.c: implement point and unpoint methods
mtd: mtdram: properly handle the phys argument in the point method
mtd: mtdswap: fix spelling mistake: 'TRESHOLD' -> 'THRESHOLD'
mtd: slram: use memremap() instead of ioremap()
kconfig: kill off GENERIC_IO option
mtd: Fix C++ comment in include/linux/mtd/mtd.h
mtd: constify mtd_partition
mtd: plat-ram: Replace manual resource management by devm
mtd: nand: Fix writing mtdoops to nand flash.
mtd: intel-spi: Add Intel Lewisburg PCH SPI super SKU PCI ID
mtd: nand: mtk: fix infinite ECC decode IRQ issue
mtd: spi-nor: Add support for mr25h128
mtd: nand: mtk: change the compile sequence of mtk_nand.o and mtk_ecc.o
mtd: spi-nor: enable 4B opcodes for mx66l51235l
...
84 lines
2.6 KiB
Text
84 lines
2.6 KiB
Text
* SPI NOR flash: ST M25Pxx (and similar) serial flash chips
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Required properties:
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- #address-cells, #size-cells : Must be present if the device has sub-nodes
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representing partitions.
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- compatible : May include a device-specific string consisting of the
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manufacturer and name of the chip. A list of supported chip
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names follows.
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Must also include "jedec,spi-nor" for any SPI NOR flash that can
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be identified by the JEDEC READ ID opcode (0x9F).
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Supported chip names:
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at25df321a
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at25df641
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at26df081a
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en25s64
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mr25h128
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mr25h256
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mr25h10
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mr25h40
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mx25l4005a
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mx25l1606e
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mx25l6405d
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mx25l12805d
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mx25l25635e
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n25q064
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n25q128a11
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n25q128a13
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n25q512a
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s25fl256s1
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s25fl512s
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s25sl12801
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s25fl008k
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s25fl064k
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sst25vf040b
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sst25wf040b
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m25p40
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m25p80
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m25p16
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m25p32
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m25p64
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m25p128
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w25x80
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w25x32
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w25q32
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w25q64
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w25q32dw
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w25q80bl
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w25q128
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w25q256
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The following chip names have been used historically to
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designate quirky versions of flash chips that do not support the
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JEDEC READ ID opcode (0x9F):
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m25p05-nonjedec
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m25p10-nonjedec
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m25p20-nonjedec
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m25p40-nonjedec
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m25p80-nonjedec
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m25p16-nonjedec
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m25p32-nonjedec
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m25p64-nonjedec
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m25p128-nonjedec
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- reg : Chip-Select number
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- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at
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Optional properties:
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- m25p,fast-read : Use the "fast read" opcode to read data from the chip instead
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of the usual "read" opcode. This opcode is not supported by
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all chips and support for it can not be detected at runtime.
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Refer to your chips' datasheet to check if this is supported
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by your chip.
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Example:
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flash: m25p80@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "spansion,m25p80", "jedec,spi-nor";
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reg = <0>;
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spi-max-frequency = <40000000>;
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m25p,fast-read;
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};
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