diff options
Diffstat (limited to 'dts/Bindings/eeprom')
| -rw-r--r-- | dts/Bindings/eeprom/at24.txt | 1 | ||||
| -rw-r--r-- | dts/Bindings/eeprom/at24.yaml | 61 | ||||
| -rw-r--r-- | dts/Bindings/eeprom/at25.txt | 45 | ||||
| -rw-r--r-- | dts/Bindings/eeprom/at25.yaml | 148 | ||||
| -rw-r--r-- | dts/Bindings/eeprom/microchip,93lc46b.yaml | 70 |
5 files changed, 261 insertions, 64 deletions
diff --git a/dts/Bindings/eeprom/at24.txt b/dts/Bindings/eeprom/at24.txt deleted file mode 100644 index c94acbb8cb..0000000000 --- a/dts/Bindings/eeprom/at24.txt +++ /dev/null @@ -1 +0,0 @@ -This file has been moved to at24.yaml. diff --git a/dts/Bindings/eeprom/at24.yaml b/dts/Bindings/eeprom/at24.yaml index 0f6d8db18d..1812ef31d5 100644 --- a/dts/Bindings/eeprom/at24.yaml +++ b/dts/Bindings/eeprom/at24.yaml @@ -2,14 +2,18 @@ # Copyright 2019 BayLibre SAS %YAML 1.2 --- -$id: "http://devicetree.org/schemas/eeprom/at24.yaml#" -$schema: "http://devicetree.org/meta-schemas/core.yaml#" +$id: http://devicetree.org/schemas/eeprom/at24.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# title: I2C EEPROMs compatible with Atmel's AT24 maintainers: - Bartosz Golaszewski <bgolaszewski@baylibre.com> +allOf: + - $ref: /schemas/nvmem/nvmem.yaml + - $ref: /schemas/nvmem/nvmem-deprecated-cells.yaml + select: properties: compatible: @@ -32,9 +36,8 @@ properties: oneOf: - allOf: - minItems: 1 - maxItems: 2 items: - - pattern: "^(atmel|catalyst|microchip|nxp|ramtron|renesas|rohm|st),(24(c|cs|mac)[0-9]+|spd)$" + - pattern: "^(atmel|catalyst|microchip|nxp|ramtron|renesas|rohm|st),(24(c|cs|lc|mac)[0-9]+|spd)$" - pattern: "^atmel,(24(c|cs|mac)[0-9]+|spd)$" - oneOf: - items: @@ -66,10 +69,14 @@ properties: - items: pattern: c32$ - items: + pattern: c32d-wl$ + - items: pattern: cs32$ - items: pattern: c64$ - items: + pattern: c64d-wl$ + - items: pattern: cs64$ - items: pattern: c128$ @@ -88,6 +95,10 @@ properties: - items: pattern: cs1024$ - items: + pattern: c1025$ + - items: + pattern: cs1025$ + - items: pattern: c2048$ - items: pattern: cs2048$ @@ -96,14 +107,24 @@ properties: # These are special cases that don't conform to the above pattern. # Each requires a standard at24 model as fallback. - items: - - const: rohm,br24t01 + - const: belling,bl24c16a + - const: atmel,24c16 + - items: + - enum: + - rohm,br24g01 + - rohm,br24t01 - const: atmel,24c01 - items: - - const: nxp,se97b + - enum: + - nxp,se97b + - renesas,r1ex24002 - const: atmel,24c02 - items: - - const: renesas,r1ex24002 - - const: atmel,24c02 + - enum: + - onnn,cat24c04 + - onnn,cat24c05 + - rohm,br24g04 + - const: atmel,24c04 - items: - const: renesas,r1ex24016 - const: atmel,24c16 @@ -111,25 +132,29 @@ properties: - const: giantec,gt24c32a - const: atmel,24c32 - items: - - const: renesas,r1ex24128 + - enum: + - renesas,r1ex24128 + - samsung,s524ad0xd1 - const: atmel,24c128 + label: + description: Descriptive name of the EEPROM. + reg: maxItems: 1 pagesize: - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32 description: The length of the pagesize for writing. Please consult the manual of your device, that value varies a lot. A wrong value may result in data loss! If not specified, a safety value of '1' is used which will be very slow. - enum: [ 1, 8, 16, 32, 64, 128, 258 ] + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 8, 16, 32, 64, 128, 256] default: 1 read-only: - $ref: /schemas/types.yaml#definitions/flag + $ref: /schemas/types.yaml#/definitions/flag description: Disables writes to the eeprom. @@ -139,7 +164,7 @@ properties: Total eeprom size in bytes. no-read-rollover: - $ref: /schemas/types.yaml#definitions/flag + $ref: /schemas/types.yaml#/definitions/flag description: Indicates that the multi-address eeprom does not automatically roll over reads to the next slave address. Please consult the manual of @@ -148,18 +173,16 @@ properties: wp-gpios: true address-width: - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32 description: Number of address bits. + $ref: /schemas/types.yaml#/definitions/uint32 default: 8 enum: [ 8, 16 ] num-addresses: - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32 description: Total number of i2c slave addresses this device takes. + $ref: /schemas/types.yaml#/definitions/uint32 default: 1 minimum: 1 maximum: 8 @@ -172,6 +195,8 @@ required: - compatible - reg +unevaluatedProperties: false + examples: - | i2c { diff --git a/dts/Bindings/eeprom/at25.txt b/dts/Bindings/eeprom/at25.txt deleted file mode 100644 index fcacd97abd..0000000000 --- a/dts/Bindings/eeprom/at25.txt +++ /dev/null @@ -1,45 +0,0 @@ -EEPROMs (SPI) compatible with Atmel at25. - -Required properties: -- compatible : Should be "<vendor>,<type>", and generic value "atmel,at25". - Example "<vendor>,<type>" values: - "anvo,anv32e61w" - "microchip,25lc040" - "st,m95m02" - "st,m95256" - -- reg : chip select number -- spi-max-frequency : max spi frequency to use -- pagesize : size of the eeprom page -- size : total eeprom size in bytes -- address-width : number of address bits (one of 8, 9, 16, or 24). - For 9 bits, the MSB of the address is sent as bit 3 of the instruction - byte, before the address byte. - -Optional properties: -- spi-cpha : SPI shifted clock phase, as per spi-bus bindings. -- spi-cpol : SPI inverse clock polarity, as per spi-bus bindings. -- read-only : this parameter-less property disables writes to the eeprom -- wp-gpios : GPIO to which the write-protect pin of the chip is connected - -Obsolete legacy properties can be used in place of "size", "pagesize", -"address-width", and "read-only": -- at25,byte-len : total eeprom size in bytes -- at25,addr-mode : addr-mode flags, as defined in include/linux/spi/eeprom.h -- at25,page-size : size of the eeprom page - -Additional compatible properties are also allowed. - -Example: - eeprom@0 { - compatible = "st,m95256", "atmel,at25"; - reg = <0> - spi-max-frequency = <5000000>; - spi-cpha; - spi-cpol; - wp-gpios = <&gpio1 3 0>; - - pagesize = <64>; - size = <32768>; - address-width = <16>; - }; diff --git a/dts/Bindings/eeprom/at25.yaml b/dts/Bindings/eeprom/at25.yaml new file mode 100644 index 0000000000..1715b0c9fe --- /dev/null +++ b/dts/Bindings/eeprom/at25.yaml @@ -0,0 +1,148 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/eeprom/at25.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SPI EEPROMs or FRAMs compatible with Atmel's AT25 + +maintainers: + - Christian Eggers <ceggers@arri.de> + +properties: + $nodename: + anyOf: + - pattern: "^eeprom@[0-9a-f]{1,2}$" + - pattern: "^fram@[0-9a-f]{1,2}$" + + # There are multiple known vendors who manufacture EEPROM chips compatible + # with Atmel's AT25. The compatible string requires two items where the + # 'vendor' and 'model' parts of the first are the actual chip and the second + # item is fixed to "atmel,at25". Some existing bindings only have the + # "atmel,at25" part and should be fixed by somebody who knows vendor and + # product. + compatible: + oneOf: + - items: + - enum: + - anvo,anv32e61w + - atmel,at25256B + - fujitsu,mb85rs1mt + - fujitsu,mb85rs64 + - microchip,at25160bn + - microchip,25lc040 + - st,m95m02 + - st,m95256 + - st,m95640 + - cypress,fm25 + + - const: atmel,at25 + + # Please don't use this alternative for new bindings. + - items: + - const: atmel,at25 + + reg: + maxItems: 1 + + pagesize: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072] + description: + Size of the eeprom page. FRAMs don't have pages. + + size: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Total eeprom size in bytes. + + address-width: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 8, 9, 16, 24 ] + description: + Number of address bits. + For 9 bits, the MSB of the address is sent as bit 3 of the instruction + byte, before the address byte. + + spi-cpha: true + + spi-cpol: true + + read-only: + description: + Disable writes to the eeprom. + type: boolean + + wp-gpios: + maxItems: 1 + description: + GPIO to which the write-protect pin of the chip is connected. + + # Deprecated: at25,byte-len, at25,addr-mode, at25,page-size + at25,byte-len: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Total eeprom size in bytes. Deprecated, use "size" property instead. + deprecated: true + + at25,addr-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Addr-mode flags, as defined in include/linux/spi/eeprom.h. + Deprecated, use "address-width" property instead. + deprecated: true + + at25,page-size: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Size of the eeprom page. Deprecated, use "pagesize" property instead. + deprecated: true + +required: + - compatible + - reg + - spi-max-frequency + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - $ref: /schemas/nvmem/nvmem.yaml + - if: + properties: + compatible: + not: + contains: + const: cypress,fm25 + then: + required: + - pagesize + - size + - address-width + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + eeprom@0 { + compatible = "st,m95256", "atmel,at25"; + reg = <0>; + spi-max-frequency = <5000000>; + spi-cpha; + spi-cpol; + wp-gpios = <&gpio1 3 0>; + + pagesize = <64>; + size = <32768>; + address-width = <16>; + }; + + fram@1 { + compatible = "cypress,fm25", "atmel,at25"; + reg = <1>; + spi-max-frequency = <40000000>; + }; + }; diff --git a/dts/Bindings/eeprom/microchip,93lc46b.yaml b/dts/Bindings/eeprom/microchip,93lc46b.yaml new file mode 100644 index 0000000000..144e86ce5c --- /dev/null +++ b/dts/Bindings/eeprom/microchip,93lc46b.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/eeprom/microchip,93lc46b.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip 93xx46 SPI compatible EEPROM family + +maintainers: + - Cory Tusar <cory.tusar@pid1solutions.com> + +properties: + compatible: + enum: + - atmel,at93c46 + - atmel,at93c46d + - atmel,at93c56 + - atmel,at93c66 + - eeprom-93xx46 + - microchip,93lc46b + + data-size: + description: number of data bits per word + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [8, 16] + + reg: + description: chip select of EEPROM + maxItems: 1 + + read-only: + description: + parameter-less property which disables writes to the EEPROM + type: boolean + + select-gpios: + description: + specifies the GPIO that needs to be asserted prior to each access + of EEPROM (e.g. for SPI bus multiplexing) + maxItems: 1 + +required: + - compatible + - reg + - data-size + - spi-max-frequency + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - $ref: /schemas/nvmem/nvmem.yaml + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + spi { + #address-cells = <1>; + #size-cells = <0>; + + eeprom@0 { + compatible = "eeprom-93xx46"; + reg = <0>; + spi-max-frequency = <1000000>; + spi-cs-high; + data-size = <8>; + select-gpios = <&gpio4 4 GPIO_ACTIVE_HIGH>; + }; + }; |