jedec,spi-nor (on spi bus)

Vendor: JEDEC Solid State Technology Association

Description

Properties supporting Zephyr spi-nor flash driver (over the Zephyr SPI
API) control of serial flash memories using the standard M25P80-based
command set.

Properties

Node specific propertiesBase properties

Properties not inherited from the base binding file.

Name	Type	Details
wp-gpios	phandle-array	WPn pin
hold-gpios	phandle-array	HOLDn pin
reset-gpios	phandle-array	RESETn pin
spi-max-frequency	int	Maximum clock frequency of device's SPI interface in Hz This property is required.
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.
requires-ulbpr	boolean	Indicates the device requires the ULBPR (0x98) command. Some flash chips such as the Microchip SST26VF series have a block protection register that initializes to write-protected. Use this property to indicate that the BPR must be unlocked before write operations can proceed.
has-dpd	boolean	Indicates the device supports the DPD (0xB9) command. Use this property to indicate the flash chip supports the Deep Power-Down mode that is entered by command 0xB9 to reduce power consumption below normal standby levels. Use of this property implies that the RDPD (0xAB) Release from Deep Power Down command is also supported. (On some chips this command functions as Read Electronic Signature; see t-enter-dpd).
dpd-wakeup-sequence	array	Specifies wakeup durations for devices without RDPD. Some devices (Macronix MX25R in particular) wake from deep power down by a timed sequence of CSn toggles rather than the RDPD command. This property specifies three durations measured in nanoseconds, in this order: (1) tDPDD (Delay Time for Release from Deep Power-Down Mode) (2) tCDRP (CSn Toggling Time before Release from Deep Power-Down Mode) (3) tRDP (Recovery Time for Release from Deep Power-Down Mode) Absence of this property indicates that the RDPD command should be used to wake the chip from Deep Power-Down mode.
t-enter-dpd	int	Duration required to complete the DPD command. This provides the duration, in nanoseconds, that CSn must be remain deasserted after issuing DPD before the chip will enter deep power down. If not provided the driver does not enforce a delay.
t-exit-dpd	int	Duration required to complete the RDPD command. This provides the duration, in nanoseconds, that CSn must be remain deasserted after issuing RDPD before the chip will exit deep power down and be ready to receive additional commands. If not provided the driver does not enforce a delay.
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.
has-be32k	boolean	Not used after Zephyr 2.3.0
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'