Merge tag 'for-linus-20130909' of git://git.infradead.org/linux-mtd
Pull mtd updates from David Woodhouse: - factor out common code from MTD tests - nand-gpio cleanup and portability to non-ARM - m25p80 support for 4-byte addressing chips, other new chips - pxa3xx cleanup and support for new platforms - remove obsolete alauda, octagon-5066 drivers - erase/write support for bcm47xxsflash - improve detection of ECC requirements for NAND, controller setup - NFC acceleration support for atmel-nand, read/write via SRAM - etc * tag 'for-linus-20130909' of git://git.infradead.org/linux-mtd: (184 commits) mtd: chips: Add support for PMC SPI Flash chips in m25p80.c mtd: ofpart: use for_each_child_of_node() macro mtd: mtdswap: replace strict_strtoul() with kstrtoul() mtd cs553x_nand: use kzalloc() instead of memset mtd: atmel_nand: fix error return code in atmel_nand_probe() mtd: bcm47xxsflash: writing support mtd: bcm47xxsflash: implement erasing support mtd: bcm47xxsflash: convert to module_platform_driver instead of init/exit mtd: bcm47xxsflash: convert kzalloc to avoid invalid access mtd: remove alauda driver mtd: nand: mxc_nand: mark 'const' properly mtd: maps: cfi_flagadm: add missing __iomem annotation mtd: spear_smi: add missing __iomem annotation mtd: r852: Staticize local symbols mtd: nandsim: Staticize local symbols mtd: impa7: add missing __iomem annotation mtd: sm_ftl: Staticize local symbols mtd: m25p80: add support for mr25h10 mtd: m25p80: make CONFIG_M25PXX_USE_FAST_READ safe to enable mtd: m25p80: Pass flags through CAT25_INFO macro ...
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@@ -15,6 +15,7 @@ Required properties:
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optional gpio and may be set to 0 if not present.
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Optional properties:
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- atmel,nand-has-dma : boolean to support dma transfer for nand read/write.
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- nand-ecc-mode : String, operation mode of the NAND ecc mode, soft by default.
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Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first",
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"soft_bch".
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@@ -29,6 +30,14 @@ Optional properties:
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sector size 1024.
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- nand-bus-width : 8 or 16 bus width if not present 8
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- nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
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- Nand Flash Controller(NFC) is a slave driver under Atmel nand flash
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- Required properties:
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- compatible : "atmel,sama5d3-nfc".
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- reg : should specify the address and size used for NFC command registers,
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NFC registers and NFC Sram. NFC Sram address and size can be absent
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if don't want to use it.
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- Optional properties:
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- atmel,write-by-sram: boolean to enable NFC write by sram.
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Examples:
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nand0: nand@40000000,0 {
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@@ -77,3 +86,22 @@ nand0: nand@40000000 {
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...
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};
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};
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/* for NFC supported chips */
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nand0: nand@40000000 {
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compatible = "atmel,at91rm9200-nand";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges;
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...
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nfc@70000000 {
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compatible = "atmel,sama5d3-nfc";
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#address-cells = <1>;
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#size-cells = <1>;
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reg = <
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0x70000000 0x10000000 /* NFC Command Registers */
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0xffffc000 0x00000070 /* NFC HSMC regs */
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0x00200000 0x00100000 /* NFC SRAM banks */
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>;
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};
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};
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@@ -1,4 +1,5 @@
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* FSMC NAND
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ST Microelectronics Flexible Static Memory Controller (FSMC)
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NAND Interface
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Required properties:
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- compatible : "st,spear600-fsmc-nand", "stericsson,fsmc-nand"
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@@ -9,6 +10,26 @@ Optional properties:
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- bank-width : Width (in bytes) of the device. If not present, the width
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defaults to 1 byte
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- nand-skip-bbtscan: Indicates the the BBT scanning should be skipped
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- timings: array of 6 bytes for NAND timings. The meanings of these bytes
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are:
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byte 0 TCLR : CLE to RE delay in number of AHB clock cycles, only 4 bits
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are valid. Zero means one clockcycle, 15 means 16 clock
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cycles.
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byte 1 TAR : ALE to RE delay, 4 bits are valid. Same format as TCLR.
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byte 2 THIZ : number of HCLK clock cycles during which the data bus is
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kept in Hi-Z (tristate) after the start of a write access.
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Only valid for write transactions. Zero means zero cycles,
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255 means 255 cycles.
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byte 3 THOLD : number of HCLK clock cycles to hold the address (and data
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when writing) after the command deassertation. Zero means
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one cycle, 255 means 256 cycles.
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byte 4 TWAIT : number of HCLK clock cycles to assert the command to the
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NAND flash in response to SMWAITn. Zero means 1 cycle,
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255 means 256 cycles.
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byte 5 TSET : number of HCLK clock cycles to assert the address before the
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command is asserted. Zero means one cycle, 255 means 256
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cycles.
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- bank: default NAND bank to use (0-3 are valid, 0 is the default).
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Example:
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@@ -24,6 +45,8 @@ Example:
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bank-width = <1>;
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nand-skip-bbtscan;
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timings = /bits/ 8 <0 0 0 2 3 0>;
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bank = <1>;
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partition@0 {
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...
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@@ -4,6 +4,7 @@ Partitions can be represented by sub-nodes of an mtd device. This can be used
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on platforms which have strong conventions about which portions of a flash are
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used for what purposes, but which don't use an on-flash partition table such
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as RedBoot.
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NOTE: if the sub-node has a compatible string, then it is not a partition.
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#address-cells & #size-cells must both be present in the mtd device. There are
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two valid values for both:
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