103 static int cs553x_write_ctrl_byte(struct cs553x_nand_controller *cs553x,  in cs553x_write_ctrl_byte()  argument
108 	writeb(ctl, cs553x->mmio + MM_NAND_CTL);  in cs553x_write_ctrl_byte()
109 	writeb(data, cs553x->mmio + MM_NAND_IO);  in cs553x_write_ctrl_byte()
110 	return readb_poll_timeout_atomic(cs553x->mmio + MM_NAND_STS, status,  in cs553x_write_ctrl_byte()
115 static void cs553x_data_in(struct cs553x_nand_controller *cs553x, void *buf,  in cs553x_data_in()  argument
118 	writeb(0, cs553x->mmio + MM_NAND_CTL);  in cs553x_data_in()
120 		memcpy_fromio(buf, cs553x->mmio, 0x800);  in cs553x_data_in()
124 	memcpy_fromio(buf, cs553x->mmio, len);  in cs553x_data_in()
127 static void cs553x_data_out(struct cs553x_nand_controller *cs553x,  in cs553x_data_out()  argument
130 	writeb(0, cs553x->mmio + MM_NAND_CTL);  in cs553x_data_out()
132 		memcpy_toio(cs553x->mmio, buf, 0x800);  in cs553x_data_out()
136 	memcpy_toio(cs553x->mmio, buf, len);  in cs553x_data_out()
139 static int cs553x_wait_ready(struct cs553x_nand_controller *cs553x,  in cs553x_wait_ready()  argument
145 	return readb_poll_timeout(cs553x->mmio + MM_NAND_STS, status,  in cs553x_wait_ready()
150 static int cs553x_exec_instr(struct cs553x_nand_controller *cs553x,  in cs553x_exec_instr()  argument
158 		ret = cs553x_write_ctrl_byte(cs553x, CS_NAND_CTL_CLE,  in cs553x_exec_instr()
164 			ret = cs553x_write_ctrl_byte(cs553x, CS_NAND_CTL_ALE,  in cs553x_exec_instr()
172 		cs553x_data_in(cs553x, instr->ctx.data.buf.in,  in cs553x_exec_instr()
177 		cs553x_data_out(cs553x, instr->ctx.data.buf.out,  in cs553x_exec_instr()
182 		ret = cs553x_wait_ready(cs553x, instr->ctx.waitrdy.timeout_ms);  in cs553x_exec_instr()
196 	struct cs553x_nand_controller *cs553x = to_cs553x(this->controller);  in cs553x_exec_op()  local
204 	writeb(0, cs553x->mmio + MM_NAND_CTL);  in cs553x_exec_op()
206 		ret = cs553x_exec_instr(cs553x, &op->instrs[i]);  in cs553x_exec_op()
212 	writeb(CS_NAND_CTL_CE, cs553x->mmio + MM_NAND_CTL);  in cs553x_exec_op()
219 	struct cs553x_nand_controller *cs553x = to_cs553x(this->controller);  in cs_enable_hwecc()  local
221 	writeb(0x07, cs553x->mmio + MM_NAND_ECC_CTL);  in cs_enable_hwecc()
227 	struct cs553x_nand_controller *cs553x = to_cs553x(this->controller);  in cs_calculate_ecc()  local
230 	ecc = readl(cs553x->mmio + MM_NAND_STS);  in cs_calculate_ecc()