7 #include <linux/mtd/spi-nor.h>
19 static int at25fs_nor_lock(struct spi_nor *nor, loff_t ofs, uint64_t len)  in at25fs_nor_lock()  argument
24 static int at25fs_nor_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len)  in at25fs_nor_unlock()  argument
29 	if (ofs || len != nor->params->size)  in at25fs_nor_unlock()
33 	ret = spi_nor_write_sr_and_check(nor, 0);  in at25fs_nor_unlock()
35 		dev_dbg(nor->dev, "unable to clear BP bits, WP# asserted?\n");  in at25fs_nor_unlock()
40 static int at25fs_nor_is_locked(struct spi_nor *nor, loff_t ofs, uint64_t len)  in at25fs_nor_is_locked()  argument
51 static int at25fs_nor_late_init(struct spi_nor *nor)  in at25fs_nor_late_init()  argument
53 	nor->params->locking_ops = &at25fs_nor_locking_ops;  in at25fs_nor_late_init()
64  * @nor:	pointer to 'struct spi_nor'
71 static int atmel_nor_set_global_protection(struct spi_nor *nor, loff_t ofs,  in atmel_nor_set_global_protection()  argument
78 	if (ofs || len != nor->params->size)  in atmel_nor_set_global_protection()
81 	ret = spi_nor_read_sr(nor, nor->bouncebuf);  in atmel_nor_set_global_protection()
85 	sr = nor->bouncebuf[0];  in atmel_nor_set_global_protection()
90 		ret = spi_nor_write_sr_and_check(nor, sr);  in atmel_nor_set_global_protection()
92 			dev_dbg(nor->dev, "unable to clear SRWD bit, WP# asserted?\n");  in atmel_nor_set_global_protection()
111 	nor->bouncebuf[0] = sr;  in atmel_nor_set_global_protection()
118 	return spi_nor_write_sr(nor, nor->bouncebuf, 1);  in atmel_nor_set_global_protection()
121 static int atmel_nor_global_protect(struct spi_nor *nor, loff_t ofs,  in atmel_nor_global_protect()  argument
124 	return atmel_nor_set_global_protection(nor, ofs, len, true);  in atmel_nor_global_protect()
127 static int atmel_nor_global_unprotect(struct spi_nor *nor, loff_t ofs,  in atmel_nor_global_unprotect()  argument
130 	return atmel_nor_set_global_protection(nor, ofs, len, false);  in atmel_nor_global_unprotect()
133 static int atmel_nor_is_global_protected(struct spi_nor *nor, loff_t ofs,  in atmel_nor_is_global_protected()  argument
138 	if (ofs >= nor->params->size || (ofs + len) > nor->params->size)  in atmel_nor_is_global_protected()
141 	ret = spi_nor_read_sr(nor, nor->bouncebuf);  in atmel_nor_is_global_protected()
145 	return ((nor->bouncebuf[0] & ATMEL_SR_GLOBAL_PROTECT_MASK) == ATMEL_SR_GLOBAL_PROTECT_MASK);  in atmel_nor_is_global_protected()
154 static int atmel_nor_global_protection_late_init(struct spi_nor *nor)  in atmel_nor_global_protection_late_init()  argument
156 	nor->params->locking_ops = &atmel_nor_global_protection_ops;  in atmel_nor_global_protection_late_init()