13  * This program is free software; you can redistribute it and/or modify
71 #define ONENAND_CORE_SPARE(flash, this, offset)				\  argument
72 	((flash->data) + (this->chipsize) + (offset >> 5))
74 #define ONENAND_MAIN_AREA(this, offset)					\  argument
75 	(this->base + ONENAND_DATARAM + offset)
77 #define ONENAND_SPARE_AREA(this, offset)				\  argument
78 	(this->base + ONENAND_SPARERAM + offset)
80 #define ONENAND_GET_WP_STATUS(this)					\  argument
81 	(readw(this->base + ONENAND_REG_WP_STATUS))
83 #define ONENAND_SET_WP_STATUS(v, this)					\  argument
84 	(writew(v, this->base + ONENAND_REG_WP_STATUS))
124  * @this:		OneNAND device structure
130 static void onenand_lock_handle(struct onenand_chip *this, int cmd)  in onenand_lock_handle()  argument
135 	status = ONENAND_GET_WP_STATUS(this);  in onenand_lock_handle()
136 	block_lock_scheme = !(this->options & ONENAND_HAS_CONT_LOCK);  in onenand_lock_handle()
142 			ONENAND_SET_WP_STATUS(ONENAND_WP_US, this);  in onenand_lock_handle()
144 			ONENAND_SET_WP_STATUS(status | ONENAND_WP_US, this);  in onenand_lock_handle()
149 			ONENAND_SET_WP_STATUS(ONENAND_WP_LS, this);  in onenand_lock_handle()
151 			ONENAND_SET_WP_STATUS(status | ONENAND_WP_LS, this);  in onenand_lock_handle()
156 			ONENAND_SET_WP_STATUS(ONENAND_WP_LTS, this);  in onenand_lock_handle()
158 			ONENAND_SET_WP_STATUS(status | ONENAND_WP_LTS, this);  in onenand_lock_handle()
168  * @this:		OneNAND device structure
173 static void onenand_bootram_handle(struct onenand_chip *this, int cmd)  in onenand_bootram_handle()  argument
177 		writew(manuf_id, this->base);  in onenand_bootram_handle()
178 		writew(device_id, this->base + 2);  in onenand_bootram_handle()
179 		writew(version_id, this->base + 4);  in onenand_bootram_handle()
190  * @this:         OneNAND device structure
195 static void onenand_update_interrupt(struct onenand_chip *this, int cmd)  in onenand_update_interrupt()  argument
222 	writew(interrupt, this->base + ONENAND_REG_INTERRUPT);  in onenand_update_interrupt()
251  * @this:		OneNAND device structure
260 static void onenand_data_handle(struct onenand_chip *this, int cmd,  in onenand_data_handle()  argument
264 	struct onenand_flash *flash = this->priv;  in onenand_data_handle()
281 		die = readw(this->base + ONENAND_REG_START_ADDRESS2);  in onenand_data_handle()
296 		dest = ONENAND_MAIN_AREA(this, main_offset);  in onenand_data_handle()
298 			writew(boundary[die], this->base + ONENAND_DATARAM);  in onenand_data_handle()
305 		src = ONENAND_CORE_SPARE(flash, this, offset);  in onenand_data_handle()
306 		dest = ONENAND_SPARE_AREA(this, spare_offset);  in onenand_data_handle()
311 		src = ONENAND_MAIN_AREA(this, main_offset);  in onenand_data_handle()
314 			boundary[die] = readw(this->base + ONENAND_DATARAM);  in onenand_data_handle()
319 			int off = i * this->subpagesize;  in onenand_data_handle()
320 			if (!memcmp(src + off, ffchars, this->subpagesize))  in onenand_data_handle()
322 			if (memcmp(dest + off, ffchars, this->subpagesize) &&  in onenand_data_handle()
323 			    onenand_check_overwrite(dest + off, src + off, this->subpagesize))  in onenand_data_handle()
325 			memcpy(dest + off, src + off, this->subpagesize);  in onenand_data_handle()
330 		src = ONENAND_SPARE_AREA(this, spare_offset);  in onenand_data_handle()
335 		dest = ONENAND_CORE_SPARE(flash, this, offset);  in onenand_data_handle()
347 		if (FLEXONENAND(this)) {  in onenand_data_handle()
354 		memset(ONENAND_CORE_SPARE(flash, this, offset), 0xff,  in onenand_data_handle()
365  * @this:		OneNAND device structure
370 static void onenand_command_handle(struct onenand_chip *this, int cmd)  in onenand_command_handle()  argument
381 		onenand_lock_handle(this, cmd);  in onenand_command_handle()
389 		block = (int) readw(this->base + ONENAND_REG_START_ADDRESS1);  in onenand_command_handle()
393 			block += this->chipsize >> (this->erase_shift + 1);  in onenand_command_handle()
398 		page = (int) readw(this->base + ONENAND_REG_START_ADDRESS8);  in onenand_command_handle()
400 		bufferram = (int) readw(this->base + ONENAND_REG_START_BUFFER);  in onenand_command_handle()
408 		offset = onenand_addr(this, block);  in onenand_command_handle()
411 		offset += page << this->page_shift;  in onenand_command_handle()
413 	onenand_data_handle(this, cmd, dataram, offset);  in onenand_command_handle()
415 	onenand_update_interrupt(this, cmd);  in onenand_command_handle()
427 	struct onenand_chip *this = info->mtd.priv;  in onenand_writew()  local
430 	if (addr < this->base + ONENAND_DATARAM) {  in onenand_writew()
431 		onenand_bootram_handle(this, value);  in onenand_writew()
435 	if (addr == this->base + ONENAND_REG_COMMAND)  in onenand_writew()
436 		onenand_command_handle(this, value);  in onenand_writew()
550 	struct onenand_chip *this = info->mtd.priv;  in onenand_sim_exit()  local
551 	struct onenand_flash *flash = this->priv;  in onenand_sim_exit()