7 #include <linux/mtd/spi-nor.h>
19 static int atmel_at25fs_lock(struct spi_nor *nor, loff_t ofs, uint64_t len)  in atmel_at25fs_lock()  argument
24 static int atmel_at25fs_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len)  in atmel_at25fs_unlock()  argument
29 	if (ofs || len != nor->params->size)  in atmel_at25fs_unlock()
33 	ret = spi_nor_write_sr_and_check(nor, 0);  in atmel_at25fs_unlock()
35 		dev_dbg(nor->dev, "unable to clear BP bits, WP# asserted?\n");  in atmel_at25fs_unlock()
40 static int atmel_at25fs_is_locked(struct spi_nor *nor, loff_t ofs, uint64_t len)  in atmel_at25fs_is_locked()  argument
51 static void atmel_at25fs_default_init(struct spi_nor *nor)  in atmel_at25fs_default_init()  argument
53 	nor->params->locking_ops = &atmel_at25fs_locking_ops;  in atmel_at25fs_default_init()
62  * @nor:	pointer to 'struct spi_nor'
69 static int atmel_set_global_protection(struct spi_nor *nor, loff_t ofs,  in atmel_set_global_protection()  argument
76 	if (ofs || len != nor->params->size)  in atmel_set_global_protection()
79 	ret = spi_nor_read_sr(nor, nor->bouncebuf);  in atmel_set_global_protection()
83 	sr = nor->bouncebuf[0];  in atmel_set_global_protection()
88 		ret = spi_nor_write_sr_and_check(nor, sr);  in atmel_set_global_protection()
90 			dev_dbg(nor->dev, "unable to clear SRWD bit, WP# asserted?\n");  in atmel_set_global_protection()
109 	nor->bouncebuf[0] = sr;  in atmel_set_global_protection()
116 	return spi_nor_write_sr(nor, nor->bouncebuf, 1);  in atmel_set_global_protection()
119 static int atmel_global_protect(struct spi_nor *nor, loff_t ofs, uint64_t len)  in atmel_global_protect()  argument
121 	return atmel_set_global_protection(nor, ofs, len, true);  in atmel_global_protect()
124 static int atmel_global_unprotect(struct spi_nor *nor, loff_t ofs, uint64_t len)  in atmel_global_unprotect()  argument
126 	return atmel_set_global_protection(nor, ofs, len, false);  in atmel_global_unprotect()
129 static int atmel_is_global_protected(struct spi_nor *nor, loff_t ofs, uint64_t len)  in atmel_is_global_protected()  argument
133 	if (ofs >= nor->params->size || (ofs + len) > nor->params->size)  in atmel_is_global_protected()
136 	ret = spi_nor_read_sr(nor, nor->bouncebuf);  in atmel_is_global_protected()
140 	return ((nor->bouncebuf[0] & ATMEL_SR_GLOBAL_PROTECT_MASK) == ATMEL_SR_GLOBAL_PROTECT_MASK);  in atmel_is_global_protected()
149 static void atmel_global_protection_default_init(struct spi_nor *nor)  in atmel_global_protection_default_init()  argument
151 	nor->params->locking_ops = &atmel_global_protection_ops;  in atmel_global_protection_default_init()