7 #include <linux/mtd/spi-nor.h>
13 static int sst26vf_lock(struct spi_nor *nor, loff_t ofs, uint64_t len)  in sst26vf_lock()  argument
18 static int sst26vf_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len)  in sst26vf_unlock()  argument
23 	if (ofs != 0 || len != nor->params->size)  in sst26vf_unlock()
26 	ret = spi_nor_read_cr(nor, nor->bouncebuf);  in sst26vf_unlock()
30 	if (!(nor->bouncebuf[0] & SST26VF_CR_BPNV)) {  in sst26vf_unlock()
31 		dev_dbg(nor->dev, "Any block has been permanently locked\n");  in sst26vf_unlock()
35 	return spi_nor_global_block_unlock(nor);  in sst26vf_unlock()
38 static int sst26vf_is_locked(struct spi_nor *nor, loff_t ofs, uint64_t len)  in sst26vf_is_locked()  argument
49 static void sst26vf_default_init(struct spi_nor *nor)  in sst26vf_default_init()  argument
51 	nor->params->locking_ops = &sst26vf_locking_ops;  in sst26vf_default_init()
97 	struct spi_nor *nor = mtd_to_spi_nor(mtd);  in sst_write()  local
101 	dev_dbg(nor->dev, "to 0x%08x, len %zd\n", (u32)to, len);  in sst_write()
103 	ret = spi_nor_lock_and_prep(nor);  in sst_write()
107 	ret = spi_nor_write_enable(nor);  in sst_write()
111 	nor->sst_write_second = false;  in sst_write()
115 		nor->program_opcode = SPINOR_OP_BP;  in sst_write()
118 		ret = spi_nor_write_data(nor, to, 1, buf);  in sst_write()
122 		ret = spi_nor_wait_till_ready(nor);  in sst_write()
132 		nor->program_opcode = SPINOR_OP_AAI_WP;  in sst_write()
135 		ret = spi_nor_write_data(nor, to, 2, buf + actual);  in sst_write()
139 		ret = spi_nor_wait_till_ready(nor);  in sst_write()
143 		nor->sst_write_second = true;  in sst_write()
145 	nor->sst_write_second = false;  in sst_write()
147 	ret = spi_nor_write_disable(nor);  in sst_write()
151 	ret = spi_nor_wait_till_ready(nor);  in sst_write()
157 		ret = spi_nor_write_enable(nor);  in sst_write()
161 		nor->program_opcode = SPINOR_OP_BP;  in sst_write()
162 		ret = spi_nor_write_data(nor, to, 1, buf + actual);  in sst_write()
166 		ret = spi_nor_wait_till_ready(nor);  in sst_write()
172 		ret = spi_nor_write_disable(nor);  in sst_write()
176 	spi_nor_unlock_and_unprep(nor);  in sst_write()
180 static void sst_post_sfdp_fixups(struct spi_nor *nor)  in sst_post_sfdp_fixups()  argument
182 	if (nor->info->flags & SST_WRITE)  in sst_post_sfdp_fixups()
183 		nor->mtd._write = sst_write;  in sst_post_sfdp_fixups()