1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
88 #define W25N_LOCK(_sc)		mtx_lock(&(_sc)->sc_mtx)
89 #define	W25N_UNLOCK(_sc)		mtx_unlock(&(_sc)->sc_mtx)
91 	mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), \
93 #define W25N_LOCK_DESTROY(_sc)	mtx_destroy(&_sc->sc_mtx);
94 #define W25N_ASSERT_LOCKED(_sc)	mtx_assert(&_sc->sc_mtx, MA_OWNED);
95 #define W25N_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED);
128 	err = SPIBUS_TRANSFER(sc->sc_parent, sc->sc_dev, &cmd);  in w25n_read_status_register()
163 	err = SPIBUS_TRANSFER(sc->sc_parent, sc->sc_dev, &cmd);  in w25n_set_page_address()
188 	err = SPIBUS_TRANSFER(sc->sc_parent, sc->sc_dev, &cmd);  in w25n_get_device_ident()
201 	device_printf(sc->sc_dev,  in w25n_get_device_ident()
202 	    "Unknown SPI NAND flash device. Vendor: %02x, device id: %04x\n",  in w25n_get_device_ident()
228 	if (count % sc->sc_disk->d_sectorsize != 0) {  in w25n_read()
229 		device_printf(sc->sc_dev, "%s: invalid count\n", __func__);  in w25n_read()
232 	if (offset % sc->sc_disk->d_sectorsize != 0) {  in w25n_read()
233 		device_printf(sc->sc_dev, "%s: invalid offset\n", __func__);  in w25n_read()
237 	page_idx = offset / sc->sc_disk->d_sectorsize;  in w25n_read()
243 			device_printf(sc->sc_dev, "%s: failed to wait\n",  in w25n_read()
251 			device_printf(sc->sc_dev, "%s: page change failed\n",  in w25n_read()
259 			device_printf(sc->sc_dev,  in w25n_read()
276 		read_size = MIN(count, sc->sc_disk->d_sectorsize);  in w25n_read()
294 		err = SPIBUS_TRANSFER(sc->sc_parent, sc->sc_dev, &cmd);  in w25n_read()
296 			device_printf(sc->sc_dev,  in w25n_read()
303 		 * Now, check ECC status bits, see if we had an ECC  in w25n_read()
308 			device_printf(sc->sc_dev,  in w25n_read()
316 			device_printf(sc->sc_dev,  in w25n_read()
317 			    "%s: ECC status failed\n", __func__);  in w25n_read()
321 		count -= read_size;  in w25n_read()
331 	{ "spi-nand",		1 },
346 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 1)  in w25n_probe()
374 	sc->sc_dev = dev;  in w25n_attach()
375 	sc->sc_parent = device_get_parent(sc->sc_dev);  in w25n_attach()
400 	device_printf(sc->sc_dev,  in w25n_attach()
402 	    ident->name,  in w25n_attach()
403 	    ident->sectorcount * ident->sectorsize / 1024,  in w25n_attach()
404 	    ident->sectorcount, ident->sectorsize / 1024,  in w25n_attach()
405 	    ident->erasesize / 1024);  in w25n_attach()
408 		device_printf(sc->sc_dev,  in w25n_attach()
409 		    "status1=0x%08x, status2=0x%08x, status3=0x%08x\n",  in w25n_attach()
414 	 * device ECC enabled.  Later on it may be interesting  in w25n_attach()
415 	 * to do software driven ECC and figure out how we  in w25n_attach()
419 		device_printf(sc->sc_dev,  in w25n_attach()
420 		    "ERROR: only ECC in HW is supported\n");  in w25n_attach()
424 		device_printf(sc->sc_dev,  in w25n_attach()
429 	sc->sc_flags = ident->flags;  in w25n_attach()
430 	sc->sc_erasesize = ident->erasesize;  in w25n_attach()
432 	sc->sc_disk = disk_alloc();  in w25n_attach()
433 	sc->sc_disk->d_open = w25n_open;  in w25n_attach()
434 	sc->sc_disk->d_close = w25n_close;  in w25n_attach()
435 	sc->sc_disk->d_strategy = w25n_strategy;  in w25n_attach()
436 	sc->sc_disk->d_getattr = w25n_getattr;  in w25n_attach()
437 	sc->sc_disk->d_ioctl = w25n_ioctl;  in w25n_attach()
438 	sc->sc_disk->d_name = "nand_flash/spi";  in w25n_attach()
439 	sc->sc_disk->d_drv1 = sc;  in w25n_attach()
440 	sc->sc_disk->d_maxsize = DFLTPHYS;  in w25n_attach()
441 	sc->sc_disk->d_sectorsize = ident->sectorsize;  in w25n_attach()
442 	sc->sc_disk->d_mediasize = ident->sectorsize * ident->sectorcount;  in w25n_attach()
443 	sc->sc_disk->d_stripesize = sc->sc_erasesize;  in w25n_attach()
444 	sc->sc_disk->d_unit = device_get_unit(sc->sc_dev);  in w25n_attach()
445 	sc->sc_disk->d_dump = NULL;		/* NB: no dumps */  in w25n_attach()
446 	strlcpy(sc->sc_disk->d_descr, ident->name,  in w25n_attach()
447 	    sizeof(sc->sc_disk->d_descr));  in w25n_attach()
449 	disk_create(sc->sc_disk, DISK_VERSION);  in w25n_attach()
450 	bioq_init(&sc->sc_bio_queue);  in w25n_attach()
451 	kproc_create(&w25n_task, sc, &sc->sc_p, 0, 0, "task: w25n flash");  in w25n_attach()
452 	sc->sc_taskstate = TSTATE_RUNNING;  in w25n_attach()
467 	if (sc->sc_taskstate == TSTATE_RUNNING) {  in w25n_detach()
468 		sc->sc_taskstate = TSTATE_STOPPING;  in w25n_detach()
470 		while (err == 0 && sc->sc_taskstate != TSTATE_STOPPED) {  in w25n_detach()
471 			err = msleep(sc, &sc->sc_mtx, 0, "w25nd", hz * 3);  in w25n_detach()
473 				sc->sc_taskstate = TSTATE_RUNNING;  in w25n_detach()
474 				device_printf(sc->sc_dev,  in w25n_detach()
481 	if (err == 0 && sc->sc_taskstate == TSTATE_STOPPED) {  in w25n_detach()
482 		disk_destroy(sc->sc_disk);  in w25n_detach()
483 		bioq_flush(&sc->sc_bio_queue, NULL, ENXIO);  in w25n_detach()
515 	sc = (struct w25n_softc *)bp->bio_disk->d_drv1;  in w25n_strategy()
517 	bioq_disksort(&sc->sc_bio_queue, bp);  in w25n_strategy()
528 	if (bp->bio_disk == NULL || bp->bio_disk->d_drv1 == NULL)  in w25n_getattr()
531 	sc = bp->bio_disk->d_drv1;  in w25n_getattr()
532 	dev = sc->sc_dev;  in w25n_getattr()
534 	if (strcmp(bp->bio_attribute, "SPI::device") == 0) {  in w25n_getattr()
535 		if (bp->bio_length != sizeof(dev))  in w25n_getattr()
537 		bcopy(&dev, bp->bio_data, sizeof(dev));  in w25n_getattr()
539 		return (-1);  in w25n_getattr()
552 			if (sc->sc_taskstate == TSTATE_STOPPING) {  in w25n_task()
553 				sc->sc_taskstate = TSTATE_STOPPED;  in w25n_task()
558 			bp = bioq_first(&sc->sc_bio_queue);  in w25n_task()
560 				msleep(sc, &sc->sc_mtx, PRIBIO, "w25nq", 0);  in w25n_task()
562 		bioq_remove(&sc->sc_bio_queue, bp);  in w25n_task()
565 		switch (bp->bio_cmd) {  in w25n_task()
567 			bp->bio_error = w25n_read(sc, bp->bio_offset,  in w25n_task()
568 			    bp->bio_data, bp->bio_bcount);  in w25n_task()
571 			bp->bio_error = w25n_write(sc, bp->bio_offset,  in w25n_task()
572 			    bp->bio_data, bp->bio_bcount);  in w25n_task()
575 			bp->bio_error = EOPNOTSUPP;  in w25n_task()