|  | * ST-Microelectronics SPI FSM Serial (NOR) Flash Controller | 
|  |  | 
|  | Required properties: | 
|  | - compatible : Should be "st,spi-fsm" | 
|  | - reg        : Contains register's location and length. | 
|  | - reg-names  : Should contain the reg names "spi-fsm" | 
|  | - interrupts : The interrupt number | 
|  | - pinctrl-0  : Standard Pinctrl phandle (see: pinctrl/pinctrl-bindings.txt) | 
|  |  | 
|  | Optional properties: | 
|  | - st,syscfg          : Phandle to boot-device system configuration registers | 
|  | - st,boot-device-reg : Address of the aforementioned boot-device register(s) | 
|  | - st,boot-device-spi : Expected boot-device value if booted via this device | 
|  |  | 
|  | Example: | 
|  | spifsm: spifsm@fe902000{ | 
|  | compatible         = "st,spi-fsm"; | 
|  | reg                =  <0xfe902000 0x1000>; | 
|  | reg-names          = "spi-fsm"; | 
|  | pinctrl-0          = <&pinctrl_fsm>; | 
|  | st,syscfg	   = <&syscfg_rear>; | 
|  | st,boot-device-reg = <0x958>; | 
|  | st,boot-device-spi = <0x1a>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  |