1 // SPDX-License-Identifier: GPL-2.0
7 #include <linux/mtd/spi-nor.h>
15 	return -EOPNOTSUPP;  in sst26vf_lock()
23 	if (ofs != 0 || len != nor->params->size)  in sst26vf_unlock()
24 		return -EINVAL;  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()
32 		return -EINVAL;  in sst26vf_unlock()
40 	return -EOPNOTSUPP;  in sst26vf_is_locked()
51 	nor->params->locking_ops = &sst26vf_locking_ops;  in sst26vf_default_init()
59 	/* SST -- large erase sizes are "overlays", "sectors" are 4K */
60 	{ "sst25vf040b", INFO(0xbf258d, 0, 64 * 1024,  8,
62 	{ "sst25vf080b", INFO(0xbf258e, 0, 64 * 1024, 16,
64 	{ "sst25vf016b", INFO(0xbf2541, 0, 64 * 1024, 32,
66 	{ "sst25vf032b", INFO(0xbf254a, 0, 64 * 1024, 64,
68 	{ "sst25vf064c", INFO(0xbf254b, 0, 64 * 1024, 128,
71 	{ "sst25wf512",  INFO(0xbf2501, 0, 64 * 1024,  1,
73 	{ "sst25wf010",  INFO(0xbf2502, 0, 64 * 1024,  2,
75 	{ "sst25wf020",  INFO(0xbf2503, 0, 64 * 1024,  4,
77 	{ "sst25wf020a", INFO(0x621612, 0, 64 * 1024,  4, SECT_4K | SPI_NOR_HAS_LOCK) },
78 	{ "sst25wf040b", INFO(0x621613, 0, 64 * 1024,  8, SECT_4K | SPI_NOR_HAS_LOCK) },
79 	{ "sst25wf040",  INFO(0xbf2504, 0, 64 * 1024,  8,
81 	{ "sst25wf080",  INFO(0xbf2505, 0, 64 * 1024, 16,
83 	{ "sst26wf016b", INFO(0xbf2651, 0, 64 * 1024, 32,
86 	{ "sst26vf016b", INFO(0xbf2641, 0, 64 * 1024, 32,
88 	{ "sst26vf064b", INFO(0xbf2643, 0, 64 * 1024, 128,
101 	dev_dbg(nor->dev, "to 0x%08x, len %zd\n", (u32)to, len);  in sst_write()
111 	nor->sst_write_second = false;  in sst_write()
115 		nor->program_opcode = SPINOR_OP_BP;  in sst_write()
117 		/* write one byte. */  in sst_write()
121 		WARN(ret != 1, "While writing 1 byte written %i bytes\n", ret);  in sst_write()
131 	for (; actual < len - 1; actual += 2) {  in sst_write()
132 		nor->program_opcode = SPINOR_OP_AAI_WP;  in sst_write()
143 		nor->sst_write_second = true;  in sst_write()
145 	nor->sst_write_second = false;  in sst_write()
155 	/* Write out trailing byte if it exists. */  in sst_write()
161 		nor->program_opcode = SPINOR_OP_BP;  in sst_write()
165 		WARN(ret != 1, "While writing 1 byte written %i bytes\n", ret);  in sst_write()
182 	if (nor->info->flags & SST_WRITE)  in sst_post_sfdp_fixups()
183 		nor->mtd._write = sst_write;  in sst_post_sfdp_fixups()