mtd/chips/cfi_cmdset_0001.c

99 static int chip_ready (struct map_info *map, struct flchip *chip, unsigned long adr, int mode);
100 static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr, int mode);
101 static void put_chip(struct map_info *map, struct flchip *chip, unsigned long adr);
393 read_pri_intelext(struct map_info *map, __u16 adr)
401 	extp = (struct cfi_pri_intelext *)cfi_read_pri(map, adr, extp_size, "Intel/Sharp");
533 		__u16 adr = primary?cfi->cfiq->P_ADR:cfi->cfiq->A_ADR;
536 		extp = read_pri_intelext(map, adr);
827 static int chip_ready (struct map_info *map, struct flchip *chip, unsigned long adr, int mode)
843 			status = map_read(map, adr);
872 		if ((adr & chip->in_progress_block_mask) ==
901 				put_chip(map, chip, adr);
944 static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr, int mode)
1033 	ret = chip_ready(map, chip, adr, mode);
1040 static void put_chip(struct map_info *map, struct flchip *chip, unsigned long adr)
1125 			unsigned long adr)
1128 	(void) map_read(map, adr); /* ensure mmu mapping is up to date */
1133 				unsigned long adr)
1137 		map_write(map, CMD(0xff), adr);
1140 	(void) map_read(map, adr);
1160 		unsigned long adr, unsigned int chip_op_time_max)
1191 			map_write(map, CMD(0xb0), adr);
1192 			map_write(map, CMD(0x70), adr);
1204 				status = map_read(map, adr);
1221 			map_write(map, CMD(0xff), adr);
1222 			(void) map_read(map, adr);
1249 			map_write(map, CMD(0xd0), adr);
1250 			map_write(map, CMD(0x70), adr);
1261 		status = map_read(map, adr);
1284 #define xip_disable(map, chip, adr)
1285 #define xip_enable(map, chip, adr)
1369 #define WAIT_TIMEOUT(map, chip, adr, udelay, udelay_max) \
1370 	INVAL_CACHE_AND_WAIT(map, chip, adr, 0, 0, udelay, udelay_max);
1373 static int do_point_onechip (struct map_info *map, struct flchip *chip, loff_t adr, size_t len)
1379 	adr += chip->start;
1382 	cmd_addr = adr & ~(map_bankwidth(map)-1);
1500 static inline int do_read_onechip(struct map_info *map, struct flchip *chip, loff_t adr, size_t len, u_char *buf)
1506 	adr += chip->start;
1509 	cmd_addr = adr & ~(map_bankwidth(map)-1);
1524 	map_copy_from(map, buf, adr, len);
1570 				     unsigned long adr, map_word datum, int mode)
1576 	adr += chip->start;
1590 	ret = get_chip(map, chip, adr, mode);
1596 	XIP_INVAL_CACHED_RANGE(map, adr, map_bankwidth(map));
1598 	xip_disable(map, chip, adr);
1599 	map_write(map, write_cmd, adr);
1600 	map_write(map, datum, adr);
1603 	ret = INVAL_CACHE_AND_WAIT(map, chip, adr,
1604 				   adr, map_bankwidth(map),
1608 		xip_enable(map, chip, adr);
1614 	status = map_read(map, adr);
1619 		map_write(map, CMD(0x50), adr);
1620 		map_write(map, CMD(0x70), adr);
1621 		xip_enable(map, chip, adr);
1636 	xip_enable(map, chip, adr);
1638 	put_chip(map, chip, adr);
1724 				    unsigned long adr, const struct kvec **pvec,
1737 	adr += chip->start;
1738 	initial_adr = adr;
1739 	cmd_adr = adr & ~(wbufsize-1);
1745 		cmd_adr = adr;
1796 	word_gap = (-adr & (map_bankwidth(map)-1));
1802 		adr -= word_gap;
1829 			map_write(map, datum, adr);
1830 			adr += map_bankwidth(map);
1953 				      unsigned long adr, int len, void *thunk)
1960 	adr += chip->start;
1964 	ret = get_chip(map, chip, adr, FL_ERASING);
1970 	XIP_INVAL_CACHED_RANGE(map, adr, len);
1972 	xip_disable(map, chip, adr);
1975 	map_write(map, CMD(0x50), adr);
1978 	map_write(map, CMD(0x20), adr);
1979 	map_write(map, CMD(0xD0), adr);
1982 	chip->in_progress_block_addr = adr;
1985 	ret = INVAL_CACHE_AND_WAIT(map, chip, adr,
1986 				   adr, len,
1990 		map_write(map, CMD(0x70), adr);
1992 		xip_enable(map, chip, adr);
1998 	map_write(map, CMD(0x70), adr);
2000 	status = map_read(map, adr);
2007 		map_write(map, CMD(0x50), adr);
2008 		map_write(map, CMD(0x70), adr);
2009 		xip_enable(map, chip, adr);
2022 			printk(KERN_DEBUG "block erase failed at 0x%08lx: status 0x%lx. Retrying...\n", adr, chipstatus);
2024 			put_chip(map, chip, adr);
2028 			printk(KERN_ERR "%s: block erase failed at 0x%08lx (status 0x%lx)\n", map->name, adr, chipstatus);
2035 	xip_enable(map, chip, adr);
2037 	put_chip(map, chip, adr);
2091 						unsigned long adr,
2097 	adr += chip->start;
2098 	xip_disable(map, chip, adr+(2*ofs_factor));
2099 	map_write(map, CMD(0x90), adr+(2*ofs_factor));
2101 	status = cfi_read_query(map, adr+(2*ofs_factor));
2109 						unsigned long adr,
2113 	       adr, do_getlockstatus_oneblock(map, chip, adr, len, thunk));
2122 				       unsigned long adr, int len, void *thunk)
2129 	adr += chip->start;
2132 	ret = get_chip(map, chip, adr, FL_LOCKING);
2139 	xip_disable(map, chip, adr);
2141 	map_write(map, CMD(0x60), adr);
2143 		map_write(map, CMD(0x01), adr);
2146 		map_write(map, CMD(0xD0), adr);
2165 	ret = WAIT_TIMEOUT(map, chip, adr, mdelay, mdelay * 1000);
2167 		map_write(map, CMD(0x70), adr);
2169 		xip_enable(map, chip, adr);
2174 	xip_enable(map, chip, adr);
2176 	put_chip(map, chip, adr);
2503 	unsigned long adr;
2513 			adr = region->offset + block * len;
2516 					do_getlockstatus_oneblock, adr, len, NULL);
2604 	unsigned long adr;
2614 			adr = region->offset + block * len;
2615 			cfi_intelext_unlock(mtd, adr, len);