129 static inline u_long ow_reg_add(struct map_info *map, u_long offset)  in ow_reg_add()  argument
132 	struct pcm_int_data *pcm_data = map->fldrv_priv;  in ow_reg_add()
134 	val = map->pfow_base + offset*pcm_data->bus_width;  in ow_reg_add()
145 static inline void ow_enable(struct map_info *map)  in ow_enable()  argument
147 	struct pcm_int_data *pcm_data = map->fldrv_priv;  in ow_enable()
160 static inline void ow_disable(struct map_info *map)  in ow_disable()  argument
162 	struct pcm_int_data *pcm_data = map->fldrv_priv;  in ow_disable()
172 static int lpddr2_nvm_do_op(struct map_info *map, u_long cmd_code,  in lpddr2_nvm_do_op()  argument
180 	struct pcm_int_data *pcm_data = map->fldrv_priv;  in lpddr2_nvm_do_op()
194 	map_write(map, cmd, ow_reg_add(map, CMD_CODE_OFS));  in lpddr2_nvm_do_op()
195 	map_write(map, data_l, ow_reg_add(map, CMD_DATA_OFS));  in lpddr2_nvm_do_op()
196 	map_write(map, add_l, ow_reg_add(map, CMD_ADD_L_OFS));  in lpddr2_nvm_do_op()
197 	map_write(map, add_h, ow_reg_add(map, CMD_ADD_H_OFS));  in lpddr2_nvm_do_op()
198 	map_write(map, mpr_l, ow_reg_add(map, MPR_L_OFS));  in lpddr2_nvm_do_op()
199 	map_write(map, mpr_h, ow_reg_add(map, MPR_H_OFS));  in lpddr2_nvm_do_op()
201 		map_write(map, cmd, ow_reg_add(map, CMD_CODE_OFS) + 2);  in lpddr2_nvm_do_op()
202 		map_write(map, data_h, ow_reg_add(map, CMD_DATA_OFS) + 2);  in lpddr2_nvm_do_op()
203 		map_write(map, add_l, ow_reg_add(map, CMD_ADD_L_OFS) + 2);  in lpddr2_nvm_do_op()
204 		map_write(map, add_h, ow_reg_add(map, CMD_ADD_H_OFS) + 2);  in lpddr2_nvm_do_op()
205 		map_write(map, mpr_l, ow_reg_add(map, MPR_L_OFS) + 2);  in lpddr2_nvm_do_op()
206 		map_write(map, mpr_h, ow_reg_add(map, MPR_H_OFS) + 2);  in lpddr2_nvm_do_op()
212 		prg_buff_ofs = (map_read(map,  in lpddr2_nvm_do_op()
213 			ow_reg_add(map, PRG_BUFFER_OFS))).x[0];  in lpddr2_nvm_do_op()
215 			map_write(map, build_map_word(buf[i]), map->pfow_base +  in lpddr2_nvm_do_op()
221 	map_write(map, exec_cmd, ow_reg_add(map, CMD_EXEC_OFS));  in lpddr2_nvm_do_op()
223 		map_write(map, exec_cmd, ow_reg_add(map, CMD_EXEC_OFS) + 2);  in lpddr2_nvm_do_op()
227 		sr = map_read(map, ow_reg_add(map, STATUS_REG_OFS));  in lpddr2_nvm_do_op()
230 			sr = map_read(map, ow_reg_add(map,  in lpddr2_nvm_do_op()
245 	struct map_info *map = mtd->priv;  in lpddr2_nvm_do_block_op()  local
251 	ow_enable(map);  in lpddr2_nvm_do_block_op()
257 		ret = lpddr2_nvm_do_op(map, block_op, 0x00, add, add, NULL);  in lpddr2_nvm_do_block_op()
264 	ow_disable(map);  in lpddr2_nvm_do_block_op()
272 static int lpddr2_nvm_pfow_present(struct map_info *map)  in lpddr2_nvm_pfow_present()  argument
279 	ow_enable(map);  in lpddr2_nvm_pfow_present()
282 	pfow_val[0] = map_read(map, ow_reg_add(map, PFOW_QUERY_STRING_P));  in lpddr2_nvm_pfow_present()
283 	pfow_val[1] = map_read(map, ow_reg_add(map, PFOW_QUERY_STRING_F));  in lpddr2_nvm_pfow_present()
284 	pfow_val[2] = map_read(map, ow_reg_add(map, PFOW_QUERY_STRING_O));  in lpddr2_nvm_pfow_present()
285 	pfow_val[3] = map_read(map, ow_reg_add(map, PFOW_QUERY_STRING_W));  in lpddr2_nvm_pfow_present()
288 	if (!map_word_equal(map, build_map_word('P'), pfow_val[0]))  in lpddr2_nvm_pfow_present()
290 	if (!map_word_equal(map, build_map_word('F'), pfow_val[1]))  in lpddr2_nvm_pfow_present()
292 	if (!map_word_equal(map, build_map_word('O'), pfow_val[2]))  in lpddr2_nvm_pfow_present()
294 	if (!map_word_equal(map, build_map_word('W'), pfow_val[3]))  in lpddr2_nvm_pfow_present()
297 	ow_disable(map);  in lpddr2_nvm_pfow_present()
310 	struct map_info *map = mtd->priv;  in lpddr2_nvm_read()  local
316 	map_copy_from(map, buf, start_add, *retlen);  in lpddr2_nvm_read()
328 	struct map_info *map = mtd->priv;  in lpddr2_nvm_write()  local
329 	struct pcm_int_data *pcm_data = map->fldrv_priv;  in lpddr2_nvm_write()
336 	ow_enable(map);  in lpddr2_nvm_write()
351 			ret = lpddr2_nvm_do_op(map, LPDDR2_NVM_SW_OVERWRITE,  in lpddr2_nvm_write()
361 			ret = lpddr2_nvm_do_op(map, LPDDR2_NVM_BUF_OVERWRITE,  in lpddr2_nvm_write()
373 	ow_disable(map);  in lpddr2_nvm_write()
416 	struct map_info *map;  in lpddr2_nvm_probe()  local
430 	map = devm_kzalloc(&pdev->dev, sizeof(*map), GFP_KERNEL);  in lpddr2_nvm_probe()
431 	if (!map)  in lpddr2_nvm_probe()
442 	*map = (struct map_info) {  in lpddr2_nvm_probe()
451 	if (IS_ERR(map->virt))  in lpddr2_nvm_probe()
452 		return PTR_ERR(map->virt);  in lpddr2_nvm_probe()
454 	simple_map_init(map);	/* fill with default methods */  in lpddr2_nvm_probe()
465 		.priv		= map,  in lpddr2_nvm_probe()
479 	if (!lpddr2_nvm_pfow_present(map)) {  in lpddr2_nvm_probe()