3  * SPI NOR driver for NXP SPI Flash Interface (SPIFI)
18 #include <linux/mtd/spi-nor.h>
58 	struct spi_nor nor;  member
125 static int nxp_spifi_read_reg(struct spi_nor *nor, u8 opcode, u8 *buf,  in nxp_spifi_read_reg()  argument
128 	struct nxp_spifi *spifi = nor->priv;  in nxp_spifi_read_reg()
148 static int nxp_spifi_write_reg(struct spi_nor *nor, u8 opcode, const u8 *buf,  in nxp_spifi_write_reg()  argument
151 	struct nxp_spifi *spifi = nor->priv;  in nxp_spifi_write_reg()
172 static ssize_t nxp_spifi_read(struct spi_nor *nor, loff_t from, size_t len,  in nxp_spifi_read()  argument
175 	struct nxp_spifi *spifi = nor->priv;  in nxp_spifi_read()
187 static ssize_t nxp_spifi_write(struct spi_nor *nor, loff_t to, size_t len,  in nxp_spifi_write()  argument
190 	struct nxp_spifi *spifi = nor->priv;  in nxp_spifi_write()
204 	      SPIFI_CMD_OPCODE(nor->program_opcode) |  in nxp_spifi_write()
205 	      SPIFI_CMD_FRAMEFORM(spifi->nor.addr_nbytes + 1);  in nxp_spifi_write()
218 static int nxp_spifi_erase(struct spi_nor *nor, loff_t offs)  in nxp_spifi_erase()  argument
220 	struct nxp_spifi *spifi = nor->priv;  in nxp_spifi_erase()
231 	      SPIFI_CMD_OPCODE(nor->erase_opcode) |  in nxp_spifi_erase()
232 	      SPIFI_CMD_FRAMEFORM(spifi->nor.addr_nbytes + 1);  in nxp_spifi_erase()
240 	switch (spifi->nor.read_proto) {  in nxp_spifi_setup_memory_cmd()
254 	if (spifi->nor.addr_nbytes < 1 || spifi->nor.addr_nbytes > 4)  in nxp_spifi_setup_memory_cmd()
257 	spifi->mcmd |= SPIFI_CMD_OPCODE(spifi->nor.read_opcode) |  in nxp_spifi_setup_memory_cmd()
258 		       SPIFI_CMD_INTLEN(spifi->nor.read_dummy / 8) |  in nxp_spifi_setup_memory_cmd()
259 		       SPIFI_CMD_FRAMEFORM(spifi->nor.addr_nbytes + 1);  in nxp_spifi_setup_memory_cmd()
264 static void nxp_spifi_dummy_id_read(struct spi_nor *nor)  in nxp_spifi_dummy_id_read()  argument
267 	nor->controller_ops->read_reg(nor, SPINOR_OP_RDID, id,  in nxp_spifi_dummy_id_read()
342 	spifi->nor.dev   = spifi->dev;  in nxp_spifi_setup_flash()
343 	spi_nor_set_flash_node(&spifi->nor, np);  in nxp_spifi_setup_flash()
344 	spifi->nor.priv  = spifi;  in nxp_spifi_setup_flash()
345 	spifi->nor.controller_ops = &nxp_spifi_controller_ops;  in nxp_spifi_setup_flash()
356 	nxp_spifi_dummy_id_read(&spifi->nor);  in nxp_spifi_setup_flash()
358 	ret = spi_nor_scan(&spifi->nor, NULL, &hwcaps);  in nxp_spifi_setup_flash()
370 	ret = mtd_device_register(&spifi->nor.mtd, NULL, 0);  in nxp_spifi_setup_flash()
438 	mtd_device_unregister(&spifi->nor.mtd);  in nxp_spifi_remove()