atmel,at45 (on spi bus)

Vendor: Atmel Corporation

Description

Atmel AT45 (or compatible) SPI flash

Properties

Properties not inherited from the base binding file.

Name

Type

Details

jedec-id

uint8-array

JEDEC ID as manufacturer ID (1 byte) and device ID (2 bytes).

This property is required.

size

int

Flash capacity in bits.

This property is required.

sector-size

int

Flash sector size in bytes.

This property is required.

block-size

int

Flash block size in bytes.

This property is required.

page-size

int

Flash page size in bytes.

This property is required.

use-udpd

boolean

When set, the driver will use the Ultra-Deep Power-Down command instead
of the default Deep Power-Down one to put the chip into low power mode.

From the driver perspective, as it does not rely on the contents of the
SRAM buffers in the chip, the difference between the Deep and Ultra-Deep
Power-Down modes is that the chip consumes far less power in the latter
but needs some more time to enter this mode and to exit from it.

enter-dpd-delay

int

Time, in nanoseconds, needed by the chip to enter the Deep Power-Down
mode (or Ultra-Deep Power-Down mode when the "use-udpd" property is set)
after the corresponding command is issued.

exit-dpd-delay

int

Time, in nanoseconds, needed by the chip to exit from the Deep Power-Down
mode (or Ultra-Deep Power-Down mode when the "use-udpd" property is set)
after the corresponding command is issued.

spi-max-frequency

int

Maximum clock frequency of device's SPI interface in Hz

This property is required.

supply-gpios

phandle

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.

Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “atmel,at45” compatible.

Name

Type

Details

reg

array

register space

This property is required.

See Important properties for more information.

label

string

Human readable string describing the device (used as device_get_binding() argument)

This property is required.

See Important properties for more information.

status

string

indicates the operational status of a device

Legal values: 'ok', 'okay', 'disabled', 'reserved', 'fail', 'fail-sss'

See Important properties for more information.

compatible

string-array

compatible strings

This property is required.

See Important properties for more information.

reg-names

string-array

name of each register space

interrupts

array

interrupts for device

See Important properties for more information.

interrupts-extended

compound

extended interrupt specifier for device

interrupt-names

string-array

name of each interrupt

interrupt-parent

phandle

phandle to interrupt controller node

clocks

phandle-array

Clock gate information

clock-names

string-array

name of each clock

#address-cells

int

number of address cells in reg property

#size-cells

int

number of size cells in reg property

dmas

phandle-array

DMA channels specifiers

dma-names

string-array

Provided names of DMA channel specifiers

io-channels

phandle-array

IO channels specifiers

io-channel-names

string-array

Provided names of IO channel specifiers