5  * SPDX-License-Identifier:	GPL-2.0+
16 static void sc_nand_write_byte(struct mtd_info *mtd, u_char byte);
17 static void sc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len);
20 static void sc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len);
33  * sc_nand_write_byte -  write one byte to the chip
35  * @byte:	pointer to data byte to write
37 static void sc_nand_write_byte(struct mtd_info *mtd, u_char byte)  in sc_nand_write_byte()  argument
39 	sc_nand_write_buf(mtd, (const uchar *)&byte, sizeof(byte));  in sc_nand_write_byte()
43  * sc_nand_write_buf -  write buffer to chip
46  * @len:	number of bytes to write
48 static void sc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)  in sc_nand_write_buf()  argument
53 	for (i = 0; i < len; i++) {  in sc_nand_write_buf()
54 		out_be32(this->IO_ADDR_W,  in sc_nand_write_buf()
61  * sc_nand_read_byte -  read one byte from the chip
66 	u8 byte;  in sc_nand_read_byte()  local
67 	sc_nand_read_buf(mtd, (uchar *)&byte, sizeof(byte));  in sc_nand_read_byte()
68 	return byte;  in sc_nand_read_byte()
72  * sc_nand_read_word -  read one word from the chip
83  * sc_nand_read_buf -  read chip data into buffer
86  * @len:	number of bytes to read
88 static void sc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)  in sc_nand_read_buf()  argument
96 	out_be32(this->IO_ADDR_W, val);  in sc_nand_read_buf()
97 	for (i = 0; i < len; i++) {  in sc_nand_read_buf()
98 		buf[i] = (in_be32(this->IO_ADDR_R) >> FPGA_NAND_DATA_SHIFT) & 0xff;  in sc_nand_read_buf()
103  * sc_nand_device_ready - Check the NAND device is ready for next command.
110 	if (in_be32(this->IO_ADDR_W) & FPGA_NAND_BUSY)  in sc_nand_device_ready()
116  * sc_nand_hwcontrol - NAND control functions wrapper.
152 	nand->cmd_ctrl = sc_nand_hwcontrol;  in board_nand_init()
153 	nand->ecc.mode = NAND_ECC_SOFT;  in board_nand_init()
154 	nand->dev_ready = sc_nand_device_ready;  in board_nand_init()
155 	nand->read_byte = sc_nand_read_byte;  in board_nand_init()
156 	nand->read_word = sc_nand_read_word;  in board_nand_init()
157 	nand->write_buf = sc_nand_write_buf;  in board_nand_init()
158 	nand->read_buf = sc_nand_read_buf;  in board_nand_init()