31 #include <linux/mtd/spi-nor.h>
82 /* commands for mtk nor controller */
106 /* nor controller 4-byte address mode enable bit */
114 	struct spi_nor nor;  member
116 	void __iomem *base;	/* nor flash base address */
123 	struct spi_nor *nor = &mtk_nor->nor;  in mtk_nor_set_read_mode()  local
125 	switch (nor->read_proto) {  in mtk_nor_set_read_mode()
127 		writeb(nor->read_opcode, mtk_nor->base +  in mtk_nor_set_read_mode()
133 		writeb(nor->read_opcode, mtk_nor->base +  in mtk_nor_set_read_mode()
139 		writeb(nor->read_opcode, mtk_nor->base +  in mtk_nor_set_read_mode()
237 	struct spi_nor *nor = &mtk_nor->nor;  in mtk_nor_set_addr_width()  local
241 	switch (nor->addr_width) {  in mtk_nor_set_addr_width()
250 			 nor->addr_width);  in mtk_nor_set_addr_width()
271 static ssize_t mtk_nor_read(struct spi_nor *nor, loff_t from, size_t length,  in mtk_nor_read()  argument
277 	struct mtk_nor *mtk_nor = nor->priv;  in mtk_nor_read()
325 static ssize_t mtk_nor_write(struct spi_nor *nor, loff_t to, size_t len,  in mtk_nor_write()  argument
329 	struct mtk_nor *mtk_nor = nor->priv;  in mtk_nor_write()
365 static int mtk_nor_read_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len)  in mtk_nor_read_reg()  argument
368 	struct mtk_nor *mtk_nor = nor->priv;  in mtk_nor_read_reg()
387 static int mtk_nor_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf,  in mtk_nor_write_reg()  argument
391 	struct mtk_nor *mtk_nor = nor->priv;  in mtk_nor_write_reg()
439 	struct spi_nor *nor;  in mtk_nor_init()  local
444 	nor = &mtk_nor->nor;  in mtk_nor_init()
445 	nor->dev = mtk_nor->dev;  in mtk_nor_init()
446 	nor->priv = mtk_nor;  in mtk_nor_init()
447 	spi_nor_set_flash_node(nor, flash_node);  in mtk_nor_init()
449 	/* fill the hooks to spi nor */  in mtk_nor_init()
450 	nor->read = mtk_nor_read;  in mtk_nor_init()
451 	nor->read_reg = mtk_nor_read_reg;  in mtk_nor_init()
452 	nor->write = mtk_nor_write;  in mtk_nor_init()
453 	nor->write_reg = mtk_nor_write_reg;  in mtk_nor_init()
454 	nor->mtd.name = "mtk_nor";  in mtk_nor_init()
456 	ret = spi_nor_scan(nor, NULL, &hwcaps);  in mtk_nor_init()
460 	return mtd_device_register(&nor->mtd, NULL, 0);  in mtk_nor_init()
552 	{ .compatible = "mediatek,mt8173-nor"},
561 		.name = "mtk-nor",
569 MODULE_DESCRIPTION("MediaTek SPI NOR Flash Driver");