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nxp,imx-flexspi-nor (on spi bus)

Vendor: NXP Semiconductors

Description

NXP FlexSPI NOR

Properties

Properties not inherited from the base binding file.

Name

Type

Details

cs-interval-unit

int

Chip select interval units, in serial clock cycles. See the
CSINTERVALUNIT field in registers FLASHA1CR0 through FLASHB2CR0. The
default corresponds to the reset value of the register field.

Default value: 1

Legal values: 1, 256

cs-interval

int

Minimum interval between chip select deassertion and assertion. See the
CSINTERVAL field in registers FLASHA1CR0 through FLASHB2CR0. The
default corresponds to the reset value of the register field.

cs-setup-time

int

Chip select setup time, in serial clock cycles. See the TCSS field in
registers FLASHA1CR0 through FLASHB2CR0. The default corresponds to the
reset value of the register field.

Default value: 3

cs-hold-time

int

Chip select hold time, in serial clock cycles. See the TCSH field in
registers FLASHA1CR0 through FLASHB2CR0. The default corresponds to the
reset value of the register field.

Default value: 3

data-valid-time

int

Data valid time, in nanoseconds. See the registers DLLACR through
DLLBCR.

column-space

int

Column address bit width. Set to zero if the flash does not support
column address. See the CAS field in registers FLASHA1CR0 through
FLASHB2CR0. The default corresponds to the reset value of the register
field.

word-addressable

boolean

Don't transmit the least significant address bit when the flash is word
addressable. See the WA field in registers FLASHA1CR0 through
FLASHB2CR0.

ahb-write-wait-unit

int

AHB write wait interval units, in AHB clock cycles. See the AWRWAITUNIT
field in registers FLASHA1CR2 through FLASHB2CR2. The default
corresponds to the reset value of the register field.

Default value: 2

Legal values: 2, 8, 32, 128, 512, 2048, 8192, 32768

ahb-write-wait-interval

int

Time to wait between AHB triggered command sequences. See the AWRWAIT
field in registers FLASHA1CR2 through FLASHB2CR2. The default
corresponds to the reset value of the register field.

spi-max-frequency

int

Maximum clock frequency of device's SPI interface in Hz

This property is required.

duplex

int

Duplex mode, full or half. By default it's always full duplex thus 0
as this is, by far, the most common mode.
Use the macros not the actual enum value, here is the concordance
list (see dt-bindings/spi/spi.h)
  0    SPI_FULL_DUPLEX
  2048 SPI_HALF_DUPLEX

Legal values: 0, 2048

supply-gpios

phandle-array

GPIO specifier that controls power to the device.

This property should be provided when the device has a dedicated
switch that controls power to the device.  The supply state is
entirely the responsibility of the device driver.

Contrast with vin-supply.

vin-supply

phandle

Reference to the regulator that controls power to the device.
The referenced devicetree node must have a regulator compatible.

This property should be provided when device power is supplied
by a shared regulator.  The supply state is dependent on the
request status of all devices fed by the regulator.

Contrast with supply-gpios.  If both properties are provided
then the regulator must be requested before the supply GPIOS is
set to an active state, and the supply GPIOS must be set to an
inactive state before releasing the regulator.

jedec-id

uint8-array

JEDEC ID as manufacturer ID, memory type, memory density

size

int

flash capacity in bits

sfdp-bfp

uint8-array

Contains the 32-bit words in little-endian byte order from the
JESD216 Serial Flash Discoverable Parameters Basic Flash
Parameters table.  This provides flash-specific configuration
information in cases were runtime retrieval of SFDP data
is not desired.

quad-enable-requirements

string

Quad Enable Requirements value from JESD216 BFP DW15.

Use NONE if the device detects 1-1-4 and 1-4-4 modes by the
instruction.  Use S1B6 if QE is bit 6 of the first status register
byte, and can be configured by reading then writing one byte with
RDSR and WRSR.  For other fields see the specification.

Legal values: 'NONE', 'S2B1v1', 'S1B6', 'S2B7', 'S2B1v4', 'S2B1v5', 'S2B1v6'

enter-4byte-addr

int

Enter 4-Byte Addressing value from JESD216 BFP DW16

This property is ignored if the device is configured to use SFDP data
from the sfdp-bfp property (CONFIG_SPI_NOR_SFDP_DEVICETREE) or to read
SFDP properties at runtime (CONFIG_SPI_NOR_SFDP_RUNTIME).

For CONFIG_SPI_NOR_SFDP_MINIMAL this is the 8-bit value from bits 31:24
of DW16 identifying ways a device can be placed into 4-byte addressing
mode.  If provided as a non-zero value the driver assumes that 4-byte
addressing is require to access the full address range, and
automatically puts the device into 4-byte address mode when the device
is initialized.

erase-block-size

int

address alignment required by flash erase operations

write-block-size

int

address alignment required by flash write operations