2  * Xilinx Zynq UltraScale+ MPSoC Quad-SPI (QSPI) controller driver
28 /* Generic QSPI register offsets */
143  * struct zynqmp_qspi - Defines qspi driver instance
144  * @regs:		Virtual address of the QSPI controller registers
158  * @mode:		Defines the mode in which QSPI is operating
251  * The default settings of the QSPI controller's configurable parameters on
263  *	- Enable the QSPI controller
385  * @qspi:	Pointer to the spi_device structure
388 static void zynqmp_qspi_chipselect(struct spi_device *qspi, bool is_high)  in zynqmp_qspi_chipselect()  argument
390 	struct zynqmp_qspi *xqspi = spi_master_get_devdata(qspi->master);  in zynqmp_qspi_chipselect()
429  * zynqmp_qspi_setup_transfer:	Configure QSPI controller for specified
431  * @qspi:	Pointer to the spi_device structure
435  * Sets the operational mode of QSPI controller for the next QSPI transfer and
447  *	by the QSPI controller the driver will set the highest or lowest
450 static int zynqmp_qspi_setup_transfer(struct spi_device *qspi,  in zynqmp_qspi_setup_transfer()  argument
453 	struct zynqmp_qspi *xqspi = spi_master_get_devdata(qspi->master);  in zynqmp_qspi_setup_transfer()
460 		req_hz = qspi->max_speed_hz;  in zynqmp_qspi_setup_transfer()
473 	/* Set the QSPI clock phase and clock polarity */  in zynqmp_qspi_setup_transfer()
476 	if (qspi->mode & SPI_CPHA)  in zynqmp_qspi_setup_transfer()
478 	if (qspi->mode & SPI_CPOL)  in zynqmp_qspi_setup_transfer()
488  * zynqmp_qspi_setup:	Configure the QSPI controller
489  * @qspi:	Pointer to the spi_device structure
491  * Sets the operational mode of QSPI controller for the next QSPI transfer,
492  * baud rate and divisor value to setup the requested qspi clock.
496 static int zynqmp_qspi_setup(struct spi_device *qspi)  in zynqmp_qspi_setup()  argument
498 	if (qspi->master->busy)  in zynqmp_qspi_setup()
558  * zynqmp_process_dma_irq:	Handler for DMA done interrupt of QSPI
606  * zynqmp_qspi_irq:	Interrupt service routine of the QSPI controller
789  * zynqmp_qspi_start_transfer:	Initiates the QSPI transfer
792  * @qspi:	Pointer to the spi_device structure
796  * This function fills the TX FIFO, starts the QSPI transfer, and waits for the
802 				      struct spi_device *qspi,  in zynqmp_qspi_start_transfer()  argument
811 	zynqmp_qspi_setup_transfer(qspi, transfer);  in zynqmp_qspi_start_transfer()
897  * zynqmp_qspi_suspend:	Suspend method for the QSPI driver
900  * This function stops the QSPI driver queue and disables the QSPI controller
916  * zynqmp_qspi_resume:	Resume method for the QSPI driver
919  * The function starts the QSPI driver queue and initializes the QSPI
1008  * zynqmp_qspi_probe:	Probe method for the QSPI driver
1069 	/* QSPI controller initializations */  in zynqmp_qspi_probe()
1123  * zynqmp_qspi_remove:	Remove method for the QSPI driver
1149 	{ .compatible = "xlnx,zynqmp-qspi-1.0", },
1159 		.name = "zynqmp-qspi",
1168 MODULE_DESCRIPTION("Xilinx Zynqmp QSPI driver");