1 // SPDX-License-Identifier: GPL-2.0
43 	unsigned interleave = cfi_interleave(cfi);  in cfi_build_cmd_addr()  local
44 	unsigned type = cfi->device_type;  in cfi_build_cmd_addr()
47 	addr = (cmd_ofs * type) * interleave;  in cfi_build_cmd_addr()
54 	if (((type * interleave) > bankwidth) && ((cmd_ofs & 0xff) == 0xaa))  in cfi_build_cmd_addr()
55 		addr |= (type >> 1)*interleave;  in cfi_build_cmd_addr()
62  * Transforms the CFI command for the given geometry (bus width & interleave).
88 	/* First, determine what the bit-pattern should be for a single  in cfi_build_cmd()
122 	/* And finally, for the multi-word case, replicate it  in cfi_build_cmd()
178 	/* Last, determine what the bit-pattern should be for a single  in cfi_merge_status()
199  * If prev_val is non-null, it will be set to the value at the command address,
215 	return addr - base;  in cfi_send_gen_cmd()
222 	int osf = cfi->interleave * cfi->device_type;	/* scale factor */  in cfi_qry_present()
250 	cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
251 	cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
256 	cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
257 	cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
258 	cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
262 	cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
263 	cfi_send_gen_cmd(0x98, 0x555, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
267 	cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
268 	cfi_send_gen_cmd(0xAA, 0x5555, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
269 	cfi_send_gen_cmd(0x55, 0x2AAA, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
270 	cfi_send_gen_cmd(0x98, 0x5555, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
274 	cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
275 	cfi_send_gen_cmd(0xAA, 0x555, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
276 	cfi_send_gen_cmd(0x55, 0x2AA, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
277 	cfi_send_gen_cmd(0x98, 0x555, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_on()
288 	cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_off()
289 	cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_off()
292 	if ((cfi->mfr == CFI_MFR_ST) && (cfi->id == 0x227E || cfi->id == 0x7E))  in cfi_qry_mode_off()
293 		cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);  in cfi_qry_mode_off()
300 	struct cfi_private *cfi = map->fldrv_priv;  in cfi_read_pri()
301 	__u32 base = 0; // cfi->chips[0].start;  in cfi_read_pri()
302 	int ofs_factor = cfi->interleave * cfi->device_type;  in cfi_read_pri()
343 	struct map_info *map = mtd->priv;  in cfi_fixup()
344 	struct cfi_private *cfi = map->fldrv_priv;  in cfi_fixup()
347 	for (f=fixups; f->fixup; f++) {  in cfi_fixup()
348 		if (((f->mfr == CFI_MFR_ANY) || (f->mfr == cfi->mfr)) &&  in cfi_fixup()
349 		    ((f->id  == CFI_ID_ANY)  || (f->id  == cfi->id))) {  in cfi_fixup()
350 			f->fixup(mtd);  in cfi_fixup()
360 	struct map_info *map = mtd->priv;  in cfi_varsize_frob()
361 	struct cfi_private *cfi = map->fldrv_priv;  in cfi_varsize_frob()
365 	struct mtd_erase_region_info *regions = mtd->eraseregions;  in cfi_varsize_frob()
379 	while (i < mtd->numeraseregions && ofs >= regions[i].offset)  in cfi_varsize_frob()
381 	i--;  in cfi_varsize_frob()
389 	if (ofs & (regions[i].erasesize-1))  in cfi_varsize_frob()
390 		return -EINVAL;  in cfi_varsize_frob()
399 	while (i<mtd->numeraseregions && (ofs + len) >= regions[i].offset)  in cfi_varsize_frob()
405 	i--;  in cfi_varsize_frob()
407 	if ((ofs + len) & (regions[i].erasesize-1))  in cfi_varsize_frob()
408 		return -EINVAL;  in cfi_varsize_frob()
410 	chipnum = ofs >> cfi->chipshift;  in cfi_varsize_frob()
411 	adr = ofs - (chipnum << cfi->chipshift);  in cfi_varsize_frob()
418 		ret = (*frob)(map, &cfi->chips[chipnum], adr, size, thunk);  in cfi_varsize_frob()
425 		len -= size;  in cfi_varsize_frob()
430 		if (adr >> cfi->chipshift) {  in cfi_varsize_frob()
434 			if (chipnum >= cfi->numchips)  in cfi_varsize_frob()