1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
50 #include <dev/mmc/bridge.h>
51 #include <dev/mmc/mmcbrvar.h>
52 #include <dev/mmc/mmc_fdt_helpers.h>
55 #include <dev/clk/clk.h>
67 #include <cam/mmc/mmc_sim.h>
128 	{"allwinner,sun4i-a10-mmc", (uintptr_t)&a10_mmc_conf},
129 	{"allwinner,sun5i-a13-mmc", (uintptr_t)&a13_mmc_conf},
130 	{"allwinner,sun7i-a20-mmc", (uintptr_t)&a13_mmc_conf},
131 	{"allwinner,sun20i-d1-mmc", (uintptr_t)&d1_mmc_conf},
132 	{"allwinner,sun50i-a64-mmc", (uintptr_t)&a64_mmc_conf},
133 	{"allwinner,sun50i-a64-emmc", (uintptr_t)&a64_emmc_conf},
176 	{ -1,			0,	0 }
200 #define	AW_MMC_LOCK(_sc)	mtx_lock(&(_sc)->aw_mtx)
201 #define	AW_MMC_UNLOCK(_sc)	mtx_unlock(&(_sc)->aw_mtx)
203 	bus_read_4((_sc)->aw_res[AW_MMC_MEMRES], _reg)
205 	bus_write_4((_sc)->aw_res[AW_MMC_MEMRES], _reg, _value)
226 	cts->host_ocr = sc->aw_host.host_ocr;  in aw_mmc_get_tran_settings()
227 	cts->host_f_min = sc->aw_host.f_min;  in aw_mmc_get_tran_settings()
228 	cts->host_f_max = sc->aw_host.f_max;  in aw_mmc_get_tran_settings()
229 	cts->host_caps = sc->aw_host.caps;  in aw_mmc_get_tran_settings()
230 	cts->host_max_data = (sc->aw_mmc_conf->dma_xferlen *  in aw_mmc_get_tran_settings()
232 	memcpy(&cts->ios, &sc->aw_host.ios, sizeof(struct mmc_ios));  in aw_mmc_get_tran_settings()
245 	ios = &sc->aw_host.ios;  in aw_mmc_set_tran_settings()
246 	new_ios = &cts->ios;  in aw_mmc_set_tran_settings()
249 	if (cts->ios_valid & MMC_CLK) {  in aw_mmc_set_tran_settings()
250 		ios->clock = new_ios->clock;  in aw_mmc_set_tran_settings()
252 			device_printf(sc->aw_dev, "Clock => %d\n", ios->clock);  in aw_mmc_set_tran_settings()
254 	if (cts->ios_valid & MMC_VDD) {  in aw_mmc_set_tran_settings()
255 		ios->vdd = new_ios->vdd;  in aw_mmc_set_tran_settings()
257 			device_printf(sc->aw_dev, "VDD => %d\n", ios->vdd);  in aw_mmc_set_tran_settings()
259 	if (cts->ios_valid & MMC_CS) {  in aw_mmc_set_tran_settings()
260 		ios->chip_select = new_ios->chip_select;  in aw_mmc_set_tran_settings()
262 			device_printf(sc->aw_dev, "CS => %d\n", ios->chip_select);  in aw_mmc_set_tran_settings()
264 	if (cts->ios_valid & MMC_BW) {  in aw_mmc_set_tran_settings()
265 		ios->bus_width = new_ios->bus_width;  in aw_mmc_set_tran_settings()
267 			device_printf(sc->aw_dev, "Bus width => %d\n", ios->bus_width);  in aw_mmc_set_tran_settings()
269 	if (cts->ios_valid & MMC_PM) {  in aw_mmc_set_tran_settings()
270 		ios->power_mode = new_ios->power_mode;  in aw_mmc_set_tran_settings()
272 			device_printf(sc->aw_dev, "Power mode => %d\n", ios->power_mode);  in aw_mmc_set_tran_settings()
274 	if (cts->ios_valid & MMC_BT) {  in aw_mmc_set_tran_settings()
275 		ios->timing = new_ios->timing;  in aw_mmc_set_tran_settings()
277 			device_printf(sc->aw_dev, "Timing => %d\n", ios->timing);  in aw_mmc_set_tran_settings()
279 	if (cts->ios_valid & MMC_BM) {  in aw_mmc_set_tran_settings()
280 		ios->bus_mode = new_ios->bus_mode;  in aw_mmc_set_tran_settings()
282 			device_printf(sc->aw_dev, "Bus mode => %d\n", ios->bus_mode);  in aw_mmc_set_tran_settings()
285 	return (aw_mmc_update_ios(sc->aw_dev, NULL));  in aw_mmc_set_tran_settings()
295 	mmcio = &ccb->mmcio;  in aw_mmc_cam_request()
300 		device_printf(sc->aw_dev, "CMD%u arg %#x flags %#x dlen %u dflags %#x\n",  in aw_mmc_cam_request()
301 			    mmcio->cmd.opcode, mmcio->cmd.arg, mmcio->cmd.flags,  in aw_mmc_cam_request()
302 			    mmcio->cmd.data != NULL ? (unsigned int) mmcio->cmd.data->len : 0,  in aw_mmc_cam_request()
303 			    mmcio->cmd.data != NULL ? mmcio->cmd.data->flags: 0);  in aw_mmc_cam_request()
305 	if (mmcio->cmd.data != NULL) {  in aw_mmc_cam_request()
306 		if (mmcio->cmd.data->len == 0 || mmcio->cmd.data->flags == 0)  in aw_mmc_cam_request()
307 			panic("data->len = %d, data->flags = %d -- something is b0rked",  in aw_mmc_cam_request()
308 			      (int)mmcio->cmd.data->len, mmcio->cmd.data->flags);  in aw_mmc_cam_request()
310 	if (sc->ccb != NULL) {  in aw_mmc_cam_request()
311 		device_printf(sc->aw_dev, "Controller still has an active command\n");  in aw_mmc_cam_request()
314 	sc->ccb = ccb;  in aw_mmc_cam_request()
317 	aw_mmc_request(sc->aw_dev, NULL, NULL);  in aw_mmc_cam_request()
339 	mmc_cam_sim_discover(&sc->mmc_sim);  in aw_mmc_helper_cd_handler()
343 		if (sc->child == NULL) {  in aw_mmc_helper_cd_handler()
345 				device_printf(sc->aw_dev, "Card inserted\n");  in aw_mmc_helper_cd_handler()
347 			sc->child = device_add_child(sc->aw_dev, "mmc", DEVICE_UNIT_ANY);  in aw_mmc_helper_cd_handler()
348 			if (sc->child) {  in aw_mmc_helper_cd_handler()
349 				device_set_ivars(sc->child, sc);  in aw_mmc_helper_cd_handler()
350 				(void)device_probe_and_attach(sc->child);  in aw_mmc_helper_cd_handler()
355 		if (sc->child != NULL) {  in aw_mmc_helper_cd_handler()
357 				device_printf(sc->aw_dev, "Card removed\n");  in aw_mmc_helper_cd_handler()
359 			device_delete_child(sc->aw_dev, sc->child);  in aw_mmc_helper_cd_handler()
360 			sc->child = NULL;  in aw_mmc_helper_cd_handler()
373 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)  in aw_mmc_probe()
376 	device_set_desc(dev, "Allwinner Integrated MMC/SD controller");  in aw_mmc_probe()
390 	sc->aw_dev = dev;  in aw_mmc_attach()
392 	sc->aw_mmc_conf = (struct aw_mmc_conf *)ofw_bus_search_compatible(dev, compat_data)->ocd_data;  in aw_mmc_attach()
395 	sc->aw_req = NULL;  in aw_mmc_attach()
397 	if (bus_alloc_resources(dev, aw_mmc_res_spec, sc->aw_res) != 0) {  in aw_mmc_attach()
401 	if (bus_setup_intr(dev, sc->aw_res[AW_MMC_IRQRES],  in aw_mmc_attach()
403 	    &sc->aw_intrhand)) {  in aw_mmc_attach()
404 		bus_release_resources(dev, aw_mmc_res_spec, sc->aw_res);  in aw_mmc_attach()
408 	mtx_init(&sc->aw_mtx, device_get_nameunit(sc->aw_dev), "aw_mmc",  in aw_mmc_attach()
410 	callout_init_mtx(&sc->aw_timeoutc, &sc->aw_mtx, 0);  in aw_mmc_attach()
412 	/* De-assert reset */  in aw_mmc_attach()
413 	if (hwreset_get_by_ofw_name(dev, 0, "ahb", &sc->aw_rst_ahb) == 0) {  in aw_mmc_attach()
414 		error = hwreset_deassert(sc->aw_rst_ahb);  in aw_mmc_attach()
416 			device_printf(dev, "cannot de-assert reset\n");  in aw_mmc_attach()
422 	error = clk_get_by_ofw_name(dev, 0, "ahb", &sc->aw_clk_ahb);  in aw_mmc_attach()
427 	error = clk_enable(sc->aw_clk_ahb);  in aw_mmc_attach()
432 	error = clk_get_by_ofw_name(dev, 0, "mmc", &sc->aw_clk_mmc);  in aw_mmc_attach()
434 		device_printf(dev, "cannot get mmc clock\n");  in aw_mmc_attach()
437 	error = clk_set_freq(sc->aw_clk_mmc, CARD_ID_FREQUENCY,  in aw_mmc_attach()
440 		device_printf(dev, "cannot init mmc clock\n");  in aw_mmc_attach()
443 	error = clk_enable(sc->aw_clk_mmc);  in aw_mmc_attach()
445 		device_printf(dev, "cannot enable mmc clock\n");  in aw_mmc_attach()
449 	sc->aw_timeout = 10;  in aw_mmc_attach()
453 	    &sc->aw_timeout, 0, "Request timeout in seconds");  in aw_mmc_attach()
462 		device_printf(sc->aw_dev, "Couldn't setup DMA!\n");  in aw_mmc_attach()
467 	sc->aw_host.f_min = 400000;  in aw_mmc_attach()
468 	sc->aw_host.f_max = 52000000;  in aw_mmc_attach()
469 	sc->aw_host.host_ocr = MMC_OCR_320_330 | MMC_OCR_330_340;  in aw_mmc_attach()
470 	sc->aw_host.caps |= MMC_CAP_HSPEED | MMC_CAP_SIGNALING_330;  in aw_mmc_attach()
471 	mmc_fdt_parse(dev, 0, &sc->mmc_helper, &sc->aw_host);  in aw_mmc_attach()
472 	mmc_fdt_gpio_setup(dev, 0, &sc->mmc_helper, aw_mmc_helper_cd_handler);  in aw_mmc_attach()
475 	sc->ccb = NULL;  in aw_mmc_attach()
477 	if (mmc_cam_sim_alloc(dev, "aw_mmc", &sc->mmc_sim) != 0) {  in aw_mmc_attach()
486 	callout_drain(&sc->aw_timeoutc);  in aw_mmc_attach()
487 	mtx_destroy(&sc->aw_mtx);  in aw_mmc_attach()
488 	bus_teardown_intr(dev, sc->aw_res[AW_MMC_IRQRES], sc->aw_intrhand);  in aw_mmc_attach()
489 	bus_release_resources(dev, aw_mmc_res_spec, sc->aw_res);  in aw_mmc_attach()
501 	clk_disable(sc->aw_clk_mmc);  in aw_mmc_detach()
502 	clk_disable(sc->aw_clk_ahb);  in aw_mmc_detach()
503 	hwreset_assert(sc->aw_rst_ahb);  in aw_mmc_detach()
505 	mmc_fdt_gpio_teardown(&sc->mmc_helper);  in aw_mmc_detach()
507 	callout_drain(&sc->aw_timeoutc);  in aw_mmc_detach()
509 	device_delete_children(sc->aw_dev);  in aw_mmc_detach()
513 	mtx_destroy(&sc->aw_mtx);  in aw_mmc_detach()
515 	bus_teardown_intr(dev, sc->aw_res[AW_MMC_IRQRES], sc->aw_intrhand);  in aw_mmc_detach()
516 	bus_release_resources(dev, aw_mmc_res_spec, sc->aw_res);  in aw_mmc_detach()
519 	mmc_cam_sim_free(&sc->mmc_sim);  in aw_mmc_detach()
532 		sc->aw_dma_map_err = err;  in aw_dma_desc_cb()
535 	sc->aw_dma_desc_phys = segs[0].ds_addr;  in aw_dma_desc_cb()
545 	    bus_get_dma_tag(sc->aw_dev),	/* parent */  in aw_mmc_setup_dma()
554 	    &sc->aw_dma_tag);  in aw_mmc_setup_dma()
558 	error = bus_dmamem_alloc(sc->aw_dma_tag, &sc->aw_dma_desc,  in aw_mmc_setup_dma()
560 	    &sc->aw_dma_map);  in aw_mmc_setup_dma()
564 	error = bus_dmamap_load(sc->aw_dma_tag,  in aw_mmc_setup_dma()
565 	    sc->aw_dma_map,  in aw_mmc_setup_dma()
566 	    sc->aw_dma_desc, AW_MMC_DMA_DESC_SIZE,  in aw_mmc_setup_dma()
570 	if (sc->aw_dma_map_err)  in aw_mmc_setup_dma()
571 		return (sc->aw_dma_map_err);  in aw_mmc_setup_dma()
575 	    bus_get_dma_tag(sc->aw_dev),	/* parent */  in aw_mmc_setup_dma()
580 	    sc->aw_mmc_conf->dma_xferlen *  in aw_mmc_setup_dma()
582 	    sc->aw_mmc_conf->dma_xferlen,	/* maxsegsize */  in aw_mmc_setup_dma()
585 	    &sc->aw_dma_buf_tag);  in aw_mmc_setup_dma()
588 	error = bus_dmamap_create(sc->aw_dma_buf_tag, 0,  in aw_mmc_setup_dma()
589 	    &sc->aw_dma_buf_map);  in aw_mmc_setup_dma()
600 	bus_dmamap_unload(sc->aw_dma_tag, sc->aw_dma_map);  in aw_mmc_teardown_dma()
601 	bus_dmamem_free(sc->aw_dma_tag, sc->aw_dma_desc, sc->aw_dma_map);  in aw_mmc_teardown_dma()
602 	if (bus_dma_tag_destroy(sc->aw_dma_tag) != 0)  in aw_mmc_teardown_dma()
603 		device_printf(sc->aw_dev, "Cannot destroy the dma tag\n");  in aw_mmc_teardown_dma()
605 	bus_dmamap_unload(sc->aw_dma_buf_tag, sc->aw_dma_buf_map);  in aw_mmc_teardown_dma()
606 	bus_dmamap_destroy(sc->aw_dma_buf_tag, sc->aw_dma_buf_map);  in aw_mmc_teardown_dma()
607 	if (bus_dma_tag_destroy(sc->aw_dma_buf_tag) != 0)  in aw_mmc_teardown_dma()
608 		device_printf(sc->aw_dev, "Cannot destroy the dma buf tag\n");  in aw_mmc_teardown_dma()
619 	sc->aw_dma_map_err = err;  in aw_dma_cb()
624 	dma_desc = sc->aw_dma_desc;  in aw_dma_cb()
626 		if ((segs[i].ds_len == sc->aw_mmc_conf->dma_xferlen) &&  in aw_dma_cb()
627 		    !sc->aw_mmc_conf->zero_is_skip)  in aw_dma_cb()
632 		    sc->aw_mmc_conf->dma_desc_shift;  in aw_dma_cb()
635 		dma_desc[i].next = (sc->aw_dma_desc_phys +  in aw_dma_cb()
637 		    sc->aw_mmc_conf->dma_desc_shift;  in aw_dma_cb()
641 	dma_desc[nsegs - 1].config |= AW_MMC_DMA_CONFIG_LD |  in aw_dma_cb()
643 	dma_desc[nsegs - 1].config &= ~AW_MMC_DMA_CONFIG_DIC;  in aw_dma_cb()
644 	dma_desc[nsegs - 1].next = 0;  in aw_dma_cb()
656 	cmd = &sc->ccb->mmcio.cmd;  in aw_mmc_prepare_dma()
658 	cmd = sc->aw_req->cmd;  in aw_mmc_prepare_dma()
660 	if (cmd->data->len > (sc->aw_mmc_conf->dma_xferlen * AW_MMC_DMA_SEGS))  in aw_mmc_prepare_dma()
662 	error = bus_dmamap_load(sc->aw_dma_buf_tag, sc->aw_dma_buf_map,  in aw_mmc_prepare_dma()
663 	    cmd->data->data, cmd->data->len, aw_dma_cb, sc, 0);  in aw_mmc_prepare_dma()
666 	if (sc->aw_dma_map_err)  in aw_mmc_prepare_dma()
667 		return (sc->aw_dma_map_err);  in aw_mmc_prepare_dma()
669 	if (cmd->data->flags & MMC_DATA_WRITE)  in aw_mmc_prepare_dma()
673 	bus_dmamap_sync(sc->aw_dma_buf_tag, sc->aw_dma_buf_map, sync_op);  in aw_mmc_prepare_dma()
674 	bus_dmamap_sync(sc->aw_dma_tag, sc->aw_dma_map, BUS_DMASYNC_PREWRITE);  in aw_mmc_prepare_dma()
692 	if (cmd->data->flags & MMC_DATA_WRITE)  in aw_mmc_prepare_dma()
699 	AW_MMC_WRITE_4(sc, AW_MMC_DLBA, sc->aw_dma_desc_phys >>  in aw_mmc_prepare_dma()
700 	    sc->aw_mmc_conf->dma_desc_shift);  in aw_mmc_prepare_dma()
718 	while (--timeout > 0) {  in aw_mmc_reset()
781 	ccb = sc->ccb;  in aw_mmc_req_done()
782 	cmd = &ccb->mmcio.cmd;  in aw_mmc_req_done()
784 	cmd = sc->aw_req->cmd;  in aw_mmc_req_done()
787 		device_printf(sc->aw_dev, "%s: cmd %d err %d\n", __func__, cmd->opcode, cmd->error);  in aw_mmc_req_done()
789 	if (cmd->error != MMC_ERR_NONE) {  in aw_mmc_req_done()
796 		while (--retry > 0) {  in aw_mmc_req_done()
803 			device_printf(sc->aw_dev,  in aw_mmc_req_done()
809 		callout_stop(&sc->aw_timeoutc);  in aw_mmc_req_done()
810 	sc->aw_intr = 0;  in aw_mmc_req_done()
811 	sc->aw_resid = 0;  in aw_mmc_req_done()
812 	sc->aw_dma_map_err = 0;  in aw_mmc_req_done()
813 	sc->aw_intr_wait = 0;  in aw_mmc_req_done()
815 	sc->ccb = NULL;  in aw_mmc_req_done()
816 	ccb->ccb_h.status =  in aw_mmc_req_done()
817 		(ccb->mmcio.cmd.error == 0 ? CAM_REQ_CMP : CAM_REQ_CMP_ERR);  in aw_mmc_req_done()
820 	req = sc->aw_req;  in aw_mmc_req_done()
821 	sc->aw_req = NULL;  in aw_mmc_req_done()
822 	req->done(req);  in aw_mmc_req_done()
834 	while (--timeout > 0) {  in aw_mmc_req_ok()
841 	cmd = &sc->ccb->mmcio.cmd;  in aw_mmc_req_ok()
843 	cmd = sc->aw_req->cmd;  in aw_mmc_req_ok()
846 		cmd->error = MMC_ERR_FAILED;  in aw_mmc_req_ok()
850 	if (cmd->flags & MMC_RSP_PRESENT) {  in aw_mmc_req_ok()
851 		if (cmd->flags & MMC_RSP_136) {  in aw_mmc_req_ok()
852 			cmd->resp[0] = AW_MMC_READ_4(sc, AW_MMC_RESP3);  in aw_mmc_req_ok()
853 			cmd->resp[1] = AW_MMC_READ_4(sc, AW_MMC_RESP2);  in aw_mmc_req_ok()
854 			cmd->resp[2] = AW_MMC_READ_4(sc, AW_MMC_RESP1);  in aw_mmc_req_ok()
855 			cmd->resp[3] = AW_MMC_READ_4(sc, AW_MMC_RESP0);  in aw_mmc_req_ok()
857 			cmd->resp[0] = AW_MMC_READ_4(sc, AW_MMC_RESP0);  in aw_mmc_req_ok()
860 	if (cmd->data != NULL && (sc->aw_resid << 2) < cmd->data->len)  in aw_mmc_req_ok()
861 		cmd->error = MMC_ERR_FAILED;  in aw_mmc_req_ok()
869 	sc->ccb->mmcio.cmd.error = error_code;  in set_mmc_error()
871 	sc->aw_req->cmd->error = error_code;  in set_mmc_error()
882 	if (sc->ccb != NULL) {
884 	if (sc->aw_req != NULL) {
886 		device_printf(sc->aw_dev, "controller timeout\n");
890 		device_printf(sc->aw_dev,
891 		    "Spurious timeout - no active request\n");
934 		device_printf(sc->aw_dev, "idst: %#x, imask: %#x, rint: %#x\n",
938 	if (sc->ccb == NULL) {
940 	if (sc->aw_req == NULL) {
942 		device_printf(sc->aw_dev,
943 		    "Spurious interrupt - no active request, rint: 0x%08X\n",
950 			device_printf(sc->aw_dev, "error rint: 0x%08X\n", rint);
962 			device_printf(sc->aw_dev, "error idst: 0x%08x\n", idst);
968 	sc->aw_intr |= rint;
970 	data = sc->ccb->mmcio.cmd.data;
972 	data = sc->aw_req->cmd->data;
975 		if (data->flags & MMC_DATA_WRITE)
979 		bus_dmamap_sync(sc->aw_dma_buf_tag, sc->aw_dma_buf_map,
981 		bus_dmamap_sync(sc->aw_dma_tag, sc->aw_dma_map,
983 		bus_dmamap_unload(sc->aw_dma_buf_tag, sc->aw_dma_buf_map);
984 		sc->aw_resid = data->len >> 2;
986 	if ((sc->aw_intr & sc->aw_intr_wait) == sc->aw_intr_wait)
1010 	 * For MMCCAM, sc->ccb has been NULL-checked and populated
1013 	cmd = &sc->ccb->mmcio.cmd;
1015 	if (sc->aw_req) {
1019 	sc->aw_req = req;
1020 	cmd = req->cmd;
1023 		device_printf(sc->aw_dev, "CMD%u arg %#x flags %#x dlen %u dflags %#x\n",
1024 			      cmd->opcode, cmd->arg, cmd->flags,
1025 			      cmd->data != NULL ? (unsigned int)cmd->data->len : 0,
1026 			      cmd->data != NULL ? cmd->data->flags: 0);
1031 	sc->aw_intr_wait = 0;
1032 	sc->aw_intr = 0;
1033 	sc->aw_resid = 0;
1034 	cmd->error = MMC_ERR_NONE;
1036 	if (cmd->opcode == MMC_GO_IDLE_STATE)
1039 	if (cmd->flags & MMC_RSP_PRESENT)
1041 	if (cmd->flags & MMC_RSP_136)
1043 	if (cmd->flags & MMC_RSP_CRC)
1046 	if (cmd->data) {
1049 		if (cmd->data->flags & MMC_DATA_MULTI) {
1052 			sc->aw_intr_wait |= AW_MMC_INT_AUTO_STOP_DONE;
1054 			sc->aw_intr_wait |= AW_MMC_INT_DATA_OVER;
1057 		if (cmd->data->flags & MMC_DATA_WRITE)
1060 		if (cmd->data->flags & MMC_DATA_BLOCK_SIZE) {
1061 			AW_MMC_WRITE_4(sc, AW_MMC_BKSR, cmd->data->block_size);
1062 			AW_MMC_WRITE_4(sc, AW_MMC_BYCR, cmd->data->len);
1066 			blksz = min(cmd->data->len, MMC_SECTOR_SIZE);
1068 			AW_MMC_WRITE_4(sc, AW_MMC_BYCR, cmd->data->len);
1083 	AW_MMC_WRITE_4(sc, AW_MMC_CAGR, cmd->arg);
1089 	if (cmd->data == NULL) {
1090 		AW_MMC_WRITE_4(sc, AW_MMC_CMDR, cmdreg | cmd->opcode);
1094 			device_printf(sc->aw_dev, "prepare_dma failed: %d\n", err);
1096 		AW_MMC_WRITE_4(sc, AW_MMC_CMDR, cmdreg | cmd->opcode);
1100 		callout_reset(&sc->aw_timeoutc, sc->aw_timeout * hz,
1119 		*(int *)result = sc->aw_host.ios.bus_mode;
1122 		*(int *)result = sc->aw_host.ios.bus_width;
1125 		*(int *)result = sc->aw_host.ios.chip_select;
1128 		*(int *)result = sc->aw_host.ios.clock;
1131 		*(int *)result = sc->aw_host.f_min;
1134 		*(int *)result = sc->aw_host.f_max;
1137 		*(int *)result = sc->aw_host.host_ocr;
1140 		*(int *)result = sc->aw_host.mode;
1143 		*(int *)result = sc->aw_host.ocr;
1146 		*(int *)result = sc->aw_host.ios.power_mode;
1149 		*(int *)result = sc->aw_host.ios.vdd;
1152 		*(int *)result = sc->aw_host.ios.vccq;
1155 		*(int *)result = sc->aw_host.caps;
1158 		*(int *)result = sc->aw_host.ios.timing;
1161 		*(int *)result = (sc->aw_mmc_conf->dma_xferlen *
1183 		sc->aw_host.ios.bus_mode = value;
1186 		sc->aw_host.ios.bus_width = value;
1189 		sc->aw_host.ios.chip_select = value;
1192 		sc->aw_host.ios.clock = value;
1195 		sc->aw_host.mode = value;
1198 		sc->aw_host.ocr = value;
1201 		sc->aw_host.ios.power_mode = value;
1204 		sc->aw_host.ios.vdd = value;
1207 		sc->aw_host.ios.vccq = value;
1210 		sc->aw_host.ios.timing = value;
1212 	/* These are read-only */
1236 	if (sc->aw_mmc_conf->mask_data0)
1246 	while (reg & AW_MMC_CMDR_LOAD && --retry > 0) {
1253 		device_printf(sc->aw_dev, "timeout updating clock\n");
1257 	if (sc->aw_mmc_conf->mask_data0) {
1275 	if (sc->mmc_helper.vqmmc_supply == NULL)
1278 	switch (sc->aw_host.ios.vccq) {
1289 	err = regulator_set_voltage(sc->mmc_helper.vqmmc_supply, uvolt, uvolt);
1291 		device_printf(sc->aw_dev,
1292 		    "Cannot set vqmmc to %d<->%d\n",
1315 	ios = &sc->aw_host.ios;
1318 	switch (ios->bus_width) {
1330 	switch (ios->power_mode) {
1335 			device_printf(sc->aw_dev, "Powering down sd/mmc\n");
1337 		if (sc->mmc_helper.vmmc_supply) {
1338 			rv = regulator_status(sc->mmc_helper.vmmc_supply, &reg_status);
1340 				regulator_disable(sc->mmc_helper.vmmc_supply);
1342 		if (sc->mmc_helper.vqmmc_supply) {
1343 			rv = regulator_status(sc->mmc_helper.vqmmc_supply, &reg_status);
1345 				regulator_disable(sc->mmc_helper.vqmmc_supply);
1348 		if (sc->mmc_helper.mmc_pwrseq)
1349 			MMC_PWRSEQ_SET_POWER(sc->mmc_helper.mmc_pwrseq, false);
1355 			device_printf(sc->aw_dev, "Powering up sd/mmc\n");
1357 		if (sc->mmc_helper.vmmc_supply) {
1358 			rv = regulator_status(sc->mmc_helper.vmmc_supply, &reg_status);
1360 				regulator_enable(sc->mmc_helper.vmmc_supply);
1362 		if (sc->mmc_helper.vqmmc_supply) {
1363 			rv = regulator_status(sc->mmc_helper.vqmmc_supply, &reg_status);
1365 				regulator_enable(sc->mmc_helper.vqmmc_supply);
1368 		if (sc->mmc_helper.mmc_pwrseq)
1369 			MMC_PWRSEQ_SET_POWER(sc->mmc_helper.mmc_pwrseq, true);
1376 	if (ios->timing == bus_timing_uhs_ddr50 ||
1377 	  ios->timing == bus_timing_mmc_ddr52)
1383 	if (ios->clock && ios->clock != sc->aw_clock) {
1384 		sc->aw_clock = clock = ios->clock;
1391 		if (ios->timing == bus_timing_mmc_ddr52 &&
1392 		    (sc->aw_mmc_conf->new_timing ||
1393 		    ios->bus_width == bus_width_8)) {
1401 		reg |= div - 1;
1405 		if (sc->aw_mmc_conf->new_timing) {
1411 		/* Set the MMC clock. */
1412 		error = clk_disable(sc->aw_clk_mmc);
1414 			device_printf(sc->aw_dev,
1415 			  "failed to disable mmc clock: %d\n", error);
1416 		error = clk_set_freq(sc->aw_clk_mmc, clock,
1419 			device_printf(sc->aw_dev,
1424 		error = clk_enable(sc->aw_clk_mmc);
1426 			device_printf(sc->aw_dev,
1427 			  "failed to re-enable mmc clock: %d\n", error);
1429 		if (sc->aw_mmc_conf->can_calibrate)
1449 	return (mmc_fdt_gpio_get_readonly(&sc->mmc_helper));
1460 	while (sc->aw_bus_busy) {
1461 		error = msleep(sc, &sc->aw_mtx, PCATCH, "mmchw", 0);
1467 	sc->aw_bus_busy++;
1480 	sc->aw_bus_busy--;
1500 	/* MMC bridge interface */