4  * SPDX-License-Identifier: Apache-2.0
30  * bits[15:8] = bytes number of clocks with data lines tri-stated
53 	.operation = (SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB | SPI_WORD_SET(8)
59 	.operation = (SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB | SPI_WORD_SET(8)
65 	.operation = (SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB | SPI_WORD_SET(8)
71 	.operation = (SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB | SPI_WORD_SET(8)
87  * SPI clocks based on single, dual, or quad mode.
88  * mode = 1(full-duplex), 2(dual), 4(quad)
89  * full-duplex: 8 clocks per byte
93 static uint32_t spi_clocks_to_bytes(uint32_t spi_clocks, uint8_t mode)  in spi_clocks_to_bytes()  argument
97 	if (mode == 4u) {  in spi_clocks_to_bytes()
99 	} else if (mode == 2u) {  in spi_clocks_to_bytes()
113 		return -EINVAL;  in spi_flash_address_format()
117 		dest[i] = (uint8_t)((spi_addr >> ((addrsz - (i + 1U)) * 8U)) & 0xffU);  in spi_flash_address_format()
210  * - Find spi device
211  * - Read flash jedec id
248  * - write enable
249  * - erase data in flash device
250  * - read register1 and wait for erase operation completed
279 	/* read SPI flash status  register1 to check whether erase operation completed */  in ZTEST_USER()
291  * - flash write enable
292  * - write data into flash using spi api
323 	/* read register1 to check whether program operation completed */  in test_spi_single_write()
333  * @brief Read data from flash using spi single mode
335  * - read data using spi single mode
336  * - check read buffer data whether correct
338  * to be generated with I/O lines tri-stated after the address has been
343  * For full-duplex one byte is 8 clocks, dual one byte is 4 clocks, and for
356 	 * bits[15:8] = number of SPI clocks with I/O lines tri-stated after  in ZTEST_USER()
361 	/* read data using spi single mode */  in ZTEST_USER()
362 	/* set the spi operation code and address */  in ZTEST_USER()
405  * @brief Read data from flash using spi dual mode
407  * - read data using spi dual mode
408  * - check read buffer data whether correct
423 	/* read data using spi dual mode */  in ZTEST_USER()
424 	/* set the spi operation code and address */  in ZTEST_USER()
452 	/* send opcode, address, and tri-state clocks  using single mode */  in ZTEST_USER()
456 	/* get read data using dual mode */  in ZTEST_USER()
470  * @brief Write data into flash using spi quad mode
472  * - check and make sure spi quad mode is enabled
473  * - write data using spi quad mode
484 	/* read register2 to judge whether quad mode is enabled */  in test_spi_quad_write()
488 	/* set register2 QE=1 to enable quad mode. We write the volatile STATUS2 register  in test_spi_quad_write()
501 		/* read register2 to confirm quad mode is enabled */  in test_spi_quad_write()
508 			     "Enable QSPI mode failure");  in test_spi_quad_write()
515 	/* write data using spi quad mode */  in test_spi_quad_write()
516 	/* send quad write opcode and address using single mode */  in test_spi_quad_write()
531 	/* send data using quad mode */  in test_spi_quad_write()
553  * @brief Read data from flash using spi quad mode
555  * - read data using spi quad mode
556  * - check read buffer data whether correct
569 	/* read data using spi quad mode  in ZTEST_USER()
570 	 * Transmit opcode, address, and tri-state clocks using full-duplex mode  in ZTEST_USER()
576 	/* set the spi operation code and address */  in ZTEST_USER()
604 	/* send opcode and address using single mode with Hold CS ON flag */  in ZTEST_USER()
608 	/* read data using quad mode */  in ZTEST_USER()