81 	struct nuc900_nand *nand;  in nuc900_nand_read_byte()  local
83 	nand = container_of(mtd, struct nuc900_nand, mtd);  in nuc900_nand_read_byte()
85 	ret = (unsigned char)read_data_reg(nand);  in nuc900_nand_read_byte()
94 	struct nuc900_nand *nand;  in nuc900_nand_read_buf()  local
96 	nand = container_of(mtd, struct nuc900_nand, mtd);  in nuc900_nand_read_buf()
99 		buf[i] = (unsigned char)read_data_reg(nand);  in nuc900_nand_read_buf()
106 	struct nuc900_nand *nand;  in nuc900_nand_write_buf()  local
108 	nand = container_of(mtd, struct nuc900_nand, mtd);  in nuc900_nand_write_buf()
111 		write_data_reg(nand, buf[i]);  in nuc900_nand_write_buf()
114 static int nuc900_check_rb(struct nuc900_nand *nand)  in nuc900_check_rb()  argument
117 	spin_lock(&nand->lock);  in nuc900_check_rb()
120 	spin_unlock(&nand->lock);  in nuc900_check_rb()
127 	struct nuc900_nand *nand;  in nuc900_nand_devready()  local
130 	nand = container_of(mtd, struct nuc900_nand, mtd);  in nuc900_nand_devready()
132 	ready = (nuc900_check_rb(nand)) ? 1 : 0;  in nuc900_nand_devready()
140 	struct nuc900_nand *nand;  in nuc900_nand_command_lp()  local
142 	nand = container_of(mtd, struct nuc900_nand, mtd);  in nuc900_nand_command_lp()
149 	write_cmd_reg(nand, command & 0xff);  in nuc900_nand_command_lp()
157 			write_addr_reg(nand, column);  in nuc900_nand_command_lp()
158 			write_addr_reg(nand, column >> 8 | ENDADDR);  in nuc900_nand_command_lp()
161 			write_addr_reg(nand, page_addr);  in nuc900_nand_command_lp()
164 				write_addr_reg(nand, page_addr >> 8);  in nuc900_nand_command_lp()
165 				write_addr_reg(nand, page_addr >> 16 | ENDADDR);  in nuc900_nand_command_lp()
167 				write_addr_reg(nand, page_addr >> 8 | ENDADDR);  in nuc900_nand_command_lp()
187 		write_cmd_reg(nand, NAND_CMD_STATUS);  in nuc900_nand_command_lp()
188 		write_cmd_reg(nand, command);  in nuc900_nand_command_lp()
190 		while (!nuc900_check_rb(nand))  in nuc900_nand_command_lp()
196 		write_cmd_reg(nand, NAND_CMD_RNDOUTSTART);  in nuc900_nand_command_lp()
201 		write_cmd_reg(nand, NAND_CMD_READSTART);  in nuc900_nand_command_lp()
219 static void nuc900_nand_enable(struct nuc900_nand *nand)  in nuc900_nand_enable()  argument
222 	spin_lock(&nand->lock);  in nuc900_nand_enable()
223 	__raw_writel(RESET_FMI, (nand->reg + REG_FMICSR));  in nuc900_nand_enable()
225 	val = __raw_readl(nand->reg + REG_FMICSR);  in nuc900_nand_enable()
228 		__raw_writel(val | NAND_EN, nand->reg + REG_FMICSR);  in nuc900_nand_enable()
230 	val = __raw_readl(nand->reg + REG_SMCSR);  in nuc900_nand_enable()
235 	__raw_writel(val, nand->reg + REG_SMCSR);  in nuc900_nand_enable()
237 	spin_unlock(&nand->lock);  in nuc900_nand_enable()