forked from ~ljy/RK356X_SDK_RELEASE
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2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87 
 kernel/drivers/mmc/host/dw_mmc.c
....@@ -1,14 +1,10 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Synopsys DesignWare Multimedia Card Interface driver
34  *  (Based on NXP driver for lpc 31xx)
45  *
56  * Copyright (C) 2009 NXP Semiconductors
67  * Copyright (C) 2009, 2010 Imagination Technologies Ltd.
7
- *
8
- * This program is free software; you can redistribute it and/or modify
9
- * it under the terms of the GNU General Public License as published by
10
- * the Free Software Foundation; either version 2 of the License, or
11
- * (at your option) any later version.
128  */
139 
1410 #include <linux/blkdev.h>
....@@ -40,6 +36,7 @@
4036 #include <linux/of.h>
4137 #include <linux/of_gpio.h>
4238 #include <linux/mmc/slot-gpio.h>
39
+#include <linux/soc/rockchip/rk_sdmmc.h>
4340 #include <linux/soc/rockchip/rockchip_decompress.h>
4441 
4542 #include "dw_mmc.h"
....@@ -109,6 +106,24 @@
109106 /* Each descriptor can transfer up to 4KB of data in chained mode */
110107 #define DW_MCI_DESC_DATA_LENGTH	0x1000
111108 
109
+#if IS_ENABLED(CONFIG_CPU_RV1106)
110
+static spinlock_t *g_sdmmc_ispvicap_lock;
111
+
112
+void rv1106_sdmmc_get_lock(void)
113
+{
114
+	if (g_sdmmc_ispvicap_lock)
115
+		spin_lock(g_sdmmc_ispvicap_lock);
116
+}
117
+EXPORT_SYMBOL(rv1106_sdmmc_get_lock);
118
+
119
+void rv1106_sdmmc_put_lock(void)
120
+{
121
+	if (g_sdmmc_ispvicap_lock)
122
+		spin_unlock(g_sdmmc_ispvicap_lock);
123
+}
124
+EXPORT_SYMBOL(rv1106_sdmmc_put_lock);
125
+#endif
126
+
112127 #if defined(CONFIG_DEBUG_FS)
113128 static int dw_mci_req_show(struct seq_file *s, void *v)
114129 {
....@@ -175,40 +190,18 @@
175190 	struct mmc_host	*mmc = slot->mmc;
176191 	struct dw_mci *host = slot->host;
177192 	struct dentry *root;
178
-	struct dentry *node;
179193 
180194 	root = mmc->debugfs_root;
181195 	if (!root)
182196 		return;
183197 
184
-	node = debugfs_create_file("regs", S_IRUSR, root, host,
185
-				   &dw_mci_regs_fops);
186
-	if (!node)
187
-		goto err;
188
-
189
-	node = debugfs_create_file("req", S_IRUSR, root, slot,
190
-				   &dw_mci_req_fops);
191
-	if (!node)
192
-		goto err;
193
-
194
-	node = debugfs_create_u32("state", S_IRUSR, root, (u32 *)&host->state);
195
-	if (!node)
196
-		goto err;
197
-
198
-	node = debugfs_create_x32("pending_events", S_IRUSR, root,
199
-				  (u32 *)&host->pending_events);
200
-	if (!node)
201
-		goto err;
202
-
203
-	node = debugfs_create_x32("completed_events", S_IRUSR, root,
204
-				  (u32 *)&host->completed_events);
205
-	if (!node)
206
-		goto err;
207
-
208
-	return;
209
-
210
-err:
211
-	dev_err(&mmc->class_dev, "failed to initialize debugfs for slot\n");
198
+	debugfs_create_file("regs", S_IRUSR, root, host, &dw_mci_regs_fops);
199
+	debugfs_create_file("req", S_IRUSR, root, slot, &dw_mci_req_fops);
200
+	debugfs_create_u32("state", S_IRUSR, root, &host->state);
201
+	debugfs_create_xul("pending_events", S_IRUSR, root,
202
+			   &host->pending_events);
203
+	debugfs_create_xul("completed_events", S_IRUSR, root,
204
+			   &host->completed_events);
212205 }
213206 #endif /* defined(CONFIG_DEBUG_FS) */
214207 
....@@ -246,8 +239,9 @@
246239 	 * ...also allow sending for SDMMC_CMD_VOLT_SWITCH where busy is
247240 	 * expected.
248241 	 */
249
-#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
250
-	if (host->slot->mmc->restrict_caps & RESTRICT_CARD_TYPE_EMMC)
242
+#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT_MMC
243
+	if (host->slot->mmc->caps2 & MMC_CAP2_NO_SD &&
244
+	    host->slot->mmc->caps2 & MMC_CAP2_NO_SDIO)
251245 		delay = 0;
252246 #endif
253247 	if ((cmd_flags & SDMMC_CMD_PRV_DAT_WAIT) &&
....@@ -488,14 +482,20 @@
488482 
489483 	/* Disable and reset the IDMAC interface */
490484 	temp = mci_readl(host, CTRL);
491
-	temp &= ~SDMMC_CTRL_USE_IDMAC;
485
+	if (!host->is_rv1106_sd)
486
+		temp &= ~SDMMC_CTRL_USE_IDMAC;
487
+
492488 	temp |= SDMMC_CTRL_DMA_RESET;
493489 	mci_writel(host, CTRL, temp);
494490 
495491 	/* Stop the IDMAC running */
496492 	temp = mci_readl(host, BMOD);
497
-	temp &= ~(SDMMC_IDMAC_ENABLE | SDMMC_IDMAC_FB);
498
-	temp |= SDMMC_IDMAC_SWRESET;
493
+	if (host->is_rv1106_sd) {
494
+		temp |= SDMMC_IDMAC_SWRESET;
495
+	} else {
496
+		temp &= ~(SDMMC_IDMAC_ENABLE | SDMMC_IDMAC_FB);
497
+		temp |= SDMMC_IDMAC_SWRESET;
498
+	}
499499 	mci_writel(host, BMOD, temp);
500500 }
501501 
....@@ -736,6 +736,13 @@
736736 		}
737737 	}
738738 
739
+	if (host->is_rv1106_sd && (data->flags & MMC_DATA_WRITE)) {
740
+		desc->des0 = desc_last->des0;
741
+		desc->des2 = desc_last->des2;
742
+		desc->des1 = 0x8; /* Random dirty data for last one desc */
743
+		desc_last = desc;
744
+	}
745
+
739746 	/* Set first descriptor */
740747 	desc_first->des0 |= cpu_to_le32(IDMAC_DES0_FD);
741748 
....@@ -871,12 +878,14 @@
871878 	if (!host->dms)
872879 		return -ENOMEM;
873880 
874
-	host->dms->ch = dma_request_slave_channel(host->dev, "rx-tx");
875
-	if (!host->dms->ch) {
881
+	host->dms->ch = dma_request_chan(host->dev, "rx-tx");
882
+	if (IS_ERR(host->dms->ch)) {
883
+		int ret = PTR_ERR(host->dms->ch);
884
+
876885 		dev_err(host->dev, "Failed to get external DMA channel.\n");
877886 		kfree(host->dms);
878887 		host->dms = NULL;
879
-		return -ENXIO;
888
+		return ret;
880889 	}
881890 
882891 	return 0;
....@@ -918,7 +927,7 @@
918927 	 * non-word-aligned buffers or lengths. Also, we don't bother
919928 	 * with all the DMA setup overhead for short transfers.
920929 	 */
921
-	if (data->blocks * data->blksz < DW_MCI_DMA_THRESHOLD)
930
+	if (data->blocks * data->blksz < DW_MCI_DMA_THRESHOLD && !host->is_rv1106_sd)
922931 		return -EINVAL;
923932 
924933 	if (data->blksz & 3)
....@@ -976,39 +985,12 @@
976985 	data->host_cookie = COOKIE_UNMAPPED;
977986 }
978987 
979
-static int dw_mci_set_sdio_status(struct mmc_host *mmc, int val)
980
-{
981
-	struct dw_mci_slot *slot = mmc_priv(mmc);
982
-	struct dw_mci *host = slot->host;
983
-
984
-	if (!(mmc->restrict_caps & RESTRICT_CARD_TYPE_SDIO))
985
-		return 0;
986
-
987
-	spin_lock_bh(&host->lock);
988
-
989
-	if (val)
990
-		set_bit(DW_MMC_CARD_PRESENT, &slot->flags);
991
-	else
992
-		clear_bit(DW_MMC_CARD_PRESENT, &slot->flags);
993
-
994
-	spin_unlock_bh(&host->lock);
995
-
996
-	mmc_detect_change(slot->mmc, 20);
997
-
998
-	return 0;
999
-}
1000
-
1001988 static int dw_mci_get_cd(struct mmc_host *mmc)
1002989 {
1003990 	int present;
1004991 	struct dw_mci_slot *slot = mmc_priv(mmc);
1005992 	struct dw_mci *host = slot->host;
1006993 	int gpio_cd = mmc_gpio_get_cd(mmc);
1007
-
1008
-#ifdef CONFIG_SDIO_KEEPALIVE
1009
-	if (mmc->logic_remove_card)
1010
-		return test_bit(DW_MMC_CARD_PRESENT, &slot->flags);
1011
-#endif
1012994 
1013995 	/* Use platform get_cd function, else try onboard card detect */
1014996 	if (((mmc->caps & MMC_CAP_NEEDS_POLL)
....@@ -1358,10 +1340,16 @@
13581340 	host->data_status = 0;
13591341 	host->dir_status = 0;
13601342 
1343
+	if (host->is_rv1106_sd)
1344
+		mci_writel(host, CTYPE, (slot->ctype << slot->id));
1345
+
13611346 	data = cmd->data;
13621347 	if (data) {
13631348 		mci_writel(host, TMOUT, 0xFFFFFFFF);
1364
-		mci_writel(host, BYTCNT, data->blksz*data->blocks);
1349
+		if (host->is_rv1106_sd && (data->flags & MMC_DATA_WRITE))
1350
+			mci_writel(host, BYTCNT, 0);
1351
+		else
1352
+			mci_writel(host, BYTCNT, data->blksz*data->blocks);
13651353 		mci_writel(host, BLKSIZ, data->blksz);
13661354 	}
13671355 
....@@ -1439,6 +1427,7 @@
14391427 	}
14401428 }
14411429 
1430
+static bool dw_mci_reset(struct dw_mci *host);
14421431 static void dw_mci_request(struct mmc_host *mmc, struct mmc_request *mrq)
14431432 {
14441433 	struct dw_mci_slot *slot = mmc_priv(mmc);
....@@ -1458,7 +1447,17 @@
14581447 		return;
14591448 	}
14601449 
1450
+	if (host->is_rv1106_sd) {
1451
+		u32 reg;
1452
+
1453
+		readl_poll_timeout(host->regs + SDMMC_STATUS, reg,
1454
+				   reg & BIT(2), USEC_PER_MSEC, 500 * USEC_PER_MSEC);
1455
+	}
1456
+
14611457 	spin_lock_bh(&host->lock);
1458
+
1459
+	if (host->is_rv1106_sd)
1460
+		dw_mci_reset(host);
14621461 
14631462 	dw_mci_queue_request(host, slot, mrq);
14641463 
....@@ -1508,6 +1507,9 @@
15081507 
15091508 	switch (ios->power_mode) {
15101509 	case MMC_POWER_UP:
1510
+		if (!IS_ERR_OR_NULL(slot->host->pinctrl))
1511
+			pinctrl_select_state(slot->host->pinctrl, slot->host->idle_state);
1512
+
15111513 		if (!IS_ERR(mmc->supply.vmmc)) {
15121514 			ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc,
15131515 					ios->vdd);
....@@ -1524,6 +1526,9 @@
15241526 		mci_writel(slot->host, PWREN, regs);
15251527 		break;
15261528 	case MMC_POWER_ON:
1529
+		if (!IS_ERR_OR_NULL(slot->host->pinctrl))
1530
+			pinctrl_select_state(slot->host->pinctrl, slot->host->normal_state);
1531
+
15271532 		if (!slot->host->vqmmc_enabled) {
15281533 			if (!IS_ERR(mmc->supply.vqmmc)) {
15291534 				ret = regulator_enable(mmc->supply.vqmmc);
....@@ -1548,17 +1553,17 @@
15481553 
15491554 		break;
15501555 	case MMC_POWER_OFF:
1556
+		if (!IS_ERR_OR_NULL(slot->host->pinctrl))
1557
+			pinctrl_select_state(slot->host->pinctrl, slot->host->idle_state);
1558
+
15511559 		/* Turn clock off before power goes down */
15521560 		dw_mci_setup_bus(slot, false);
15531561 
15541562 		if (!IS_ERR(mmc->supply.vmmc))
15551563 			mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
15561564 
1557
-		if (!IS_ERR(mmc->supply.vqmmc) && slot->host->vqmmc_enabled) {
1558
-			ios->signal_voltage = MMC_SIGNAL_VOLTAGE_330;
1559
-			mmc_regulator_set_vqmmc(mmc, ios);
1565
+		if (!IS_ERR(mmc->supply.vqmmc) && slot->host->vqmmc_enabled)
15601566 			regulator_disable(mmc->supply.vqmmc);
1561
-		}
15621567 		slot->host->vqmmc_enabled = false;
15631568 
15641569 		regs = mci_readl(slot->host, PWREN);
....@@ -1612,8 +1617,7 @@
16121617 
16131618 	if (!IS_ERR(mmc->supply.vqmmc)) {
16141619 		ret = mmc_regulator_set_vqmmc(mmc, ios);
1615
-
1616
-		if (ret) {
1620
+		if (ret < 0) {
16171621 			dev_dbg(&mmc->class_dev,
16181622 					 "Regulator set error %d - %s V\n",
16191623 					 ret, uhs & v18 ? "1.8" : "3.3");
....@@ -1843,7 +1847,6 @@
18431847 	.pre_req		= dw_mci_pre_req,
18441848 	.post_req		= dw_mci_post_req,
18451849 	.set_ios		= dw_mci_set_ios,
1846
-	.set_sdio_status	= dw_mci_set_sdio_status,
18471850 	.get_ro			= dw_mci_get_ro,
18481851 	.get_cd			= dw_mci_get_cd,
18491852 	.hw_reset               = dw_mci_hw_reset,
....@@ -1885,6 +1888,7 @@
18851888 	}
18861889 
18871890 	spin_unlock(&host->lock);
1891
+
18881892 	mmc_request_done(prev_mmc, mrq);
18891893 	spin_lock(&host->lock);
18901894 }
....@@ -1926,6 +1930,9 @@
19261930 {
19271931 	u32 status = host->data_status;
19281932 
1933
+	if (host->is_rv1106_sd && (data->flags & MMC_DATA_WRITE) && (status & SDMMC_INT_DATA_OVER))
1934
+		goto finish;
1935
+
19291936 	if (status & DW_MCI_DATA_ERROR_FLAGS) {
19301937 		if (status & SDMMC_INT_DRTO) {
19311938 			data->error = -ETIMEDOUT;
....@@ -1958,6 +1965,7 @@
19581965 		 */
19591966 		dw_mci_reset(host);
19601967 	} else {
1968
+finish:
19611969 		data->bytes_xfered = data->blocks * data->blksz;
19621970 		data->error = 0;
19631971 	}
....@@ -2123,7 +2131,7 @@
21232131 			}
21242132 
21252133 			prev_state = state = STATE_SENDING_DATA;
2126
-			/* fall through */
2134
+			fallthrough;
21272135 
21282136 		case STATE_SENDING_DATA:
21292137 			/*
....@@ -2184,7 +2192,7 @@
21842192 			}
21852193 			prev_state = state = STATE_DATA_BUSY;
21862194 
2187
-			/* fall through */
2195
+			fallthrough;
21882196 
21892197 		case STATE_DATA_BUSY:
21902198 			if (!dw_mci_clear_pending_data_complete(host)) {
....@@ -2237,7 +2245,7 @@
22372245 			 */
22382246 			prev_state = state = STATE_SENDING_STOP;
22392247 
2240
-			/* fall through */
2248
+			fallthrough;
22412249 
22422250 		case STATE_SENDING_STOP:
22432251 			if (!dw_mci_clear_pending_cmd_complete(host))
....@@ -2762,11 +2770,14 @@
27622770 		}
27632771 
27642772 		if (pending & SDMMC_INT_DATA_OVER) {
2773
+rv1106_sd:
27652774 			spin_lock_irqsave(&host->irq_lock, irqflags);
27662775 
27672776 			del_timer(&host->dto_timer);
27682777 
27692778 			mci_writel(host, RINTSTS, SDMMC_INT_DATA_OVER);
2779
+			if (host->is_rv1106_sd)
2780
+				pending |= SDMMC_INT_DATA_OVER;
27702781 			if (!host->data_status)
27712782 				host->data_status = pending;
27722783 			smp_wmb(); /* drain writebuffer */
....@@ -2836,6 +2847,9 @@
28362847 			mci_writel(host, IDSTS, SDMMC_IDMAC_INT_NI);
28372848 			if (!test_bit(EVENT_DATA_ERROR, &host->pending_events))
28382849 				host->dma_ops->complete((void *)host);
2850
+
2851
+			if (host->is_rv1106_sd && (pending & SDMMC_IDMAC_INT_TI))
2852
+				goto rv1106_sd;
28392853 		}
28402854 	}
28412855 
....@@ -2851,12 +2865,6 @@
28512865 
28522866 	if (host->pdata->caps)
28532867 		mmc->caps = host->pdata->caps;
2854
-
2855
-	/*
2856
-	 * Support MMC_CAP_ERASE by default.
2857
-	 * It needs to use trim/discard/erase commands.
2858
-	 */
2859
-	mmc->caps |= MMC_CAP_ERASE;
28602868 
28612869 	if (host->pdata->pm_caps)
28622870 		mmc->pm_caps = host->pdata->pm_caps;
....@@ -2875,15 +2883,7 @@
28752883 				ctrl_id);
28762884 			return -EINVAL;
28772885 		}
2878
-		/*
2879
-		 * Some sd cards violate the spec. They claim to support
2880
-		 * CMD23 but actually not. We don't have a good method to
2881
-		 * work around them except for adding MMC_QUIRK_BLK_NO_CMD23
2882
-		 * one by one. But it's not a acceptable way for our custmors.
2883
-		 * So removing CMD23 support for all sd cards to solve it.
2884
-		 */
2885
-		if (!(mmc->restrict_caps & RESTRICT_CARD_TYPE_SD))
2886
-			mmc->caps |= drv_data->caps[ctrl_id];
2886
+		mmc->caps |= drv_data->caps[ctrl_id];
28872887 	}
28882888 
28892889 	if (host->pdata->caps2)
....@@ -2937,6 +2937,10 @@
29372937 
29382938 	/* Useful defaults if platform data is unset. */
29392939 	if (host->use_dma == TRANS_MODE_IDMAC) {
2940
+		/* Reserve last desc for dirty data */
2941
+		if (host->is_rv1106_sd)
2942
+			host->ring_size--;
2943
+
29402944 		mmc->max_segs = host->ring_size;
29412945 		mmc->max_blk_size = 65535;
29422946 		mmc->max_seg_size = 0x1000;
....@@ -2960,11 +2964,6 @@
29602964 	}
29612965 
29622966 	dw_mci_get_cd(mmc);
2963
-
2964
-#ifdef CONFIG_SDIO_KEEPALIVE
2965
-	if (mmc->logic_remove_card)
2966
-		clear_bit(DW_MMC_CARD_PRESENT, &slot->flags);
2967
-#endif
29682967 
29692968 	ret = mmc_add_host(mmc);
29702969 	if (ret)
....@@ -3272,6 +3271,22 @@
32723271 			return ERR_PTR(ret);
32733272 	}
32743273 
3274
+	host->pinctrl = devm_pinctrl_get(host->dev);
3275
+	if (!IS_ERR(host->pinctrl)) {
3276
+		host->normal_state = pinctrl_lookup_state(host->pinctrl, "normal");
3277
+		if (IS_ERR(host->normal_state))
3278
+			dev_warn(dev, "No normal pinctrl state\n");
3279
+
3280
+		host->idle_state = pinctrl_lookup_state(host->pinctrl, "idle");
3281
+		if (IS_ERR(host->idle_state))
3282
+			dev_warn(dev, "No idle pinctrl state\n");
3283
+
3284
+		if (!IS_ERR(host->normal_state) && !IS_ERR(host->idle_state))
3285
+			pinctrl_select_state(host->pinctrl, host->idle_state);
3286
+		else
3287
+			host->pinctrl = NULL;
3288
+	}
3289
+
32753290 	return pdata;
32763291 }
32773292 
....@@ -3311,12 +3326,9 @@
33113326 
33123327 	if (!host->pdata) {
33133328 		host->pdata = dw_mci_parse_dt(host);
3314
-		if (PTR_ERR(host->pdata) == -EPROBE_DEFER) {
3315
-			return -EPROBE_DEFER;
3316
-		} else if (IS_ERR(host->pdata)) {
3317
-			dev_err(host->dev, "platform data not available\n");
3318
-			return -EINVAL;
3319
-		}
3329
+		if (IS_ERR(host->pdata))
3330
+			return dev_err_probe(host->dev, PTR_ERR(host->pdata),
3331
+					     "platform data not available\n");
33203332 	}
33213333 
33223334 	host->biu_clk = devm_clk_get(host->dev, "biu");
....@@ -3329,8 +3341,10 @@
33293341 			return ret;
33303342 		}
33313343 	}
3332
-#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
3333
-	if (device_property_read_bool(host->dev, "supports-emmc")) {
3344
+
3345
+#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT_MMC
3346
+	if (device_property_read_bool(host->dev, "no-sd") &&
3347
+	    device_property_read_bool(host->dev, "no-sdio")) {
33343348 		if (readl_poll_timeout(host->regs + SDMMC_STATUS,
33353349 				fifo_size,
33363350 				!(fifo_size & (BIT(10) | GENMASK(7, 4))),
....@@ -3507,6 +3521,24 @@
35073521 		goto err_dmaunmap;
35083522 	}
35093523 
3524
+	if (host->is_rv1106_sd) {
3525
+#if IS_ENABLED(CONFIG_CPU_RV1106)
3526
+		g_sdmmc_ispvicap_lock = &host->lock;
3527
+#endif
3528
+		/* Select IDMAC interface */
3529
+		fifo_size = mci_readl(host, CTRL);
3530
+		fifo_size |= SDMMC_CTRL_USE_IDMAC;
3531
+		mci_writel(host, CTRL, fifo_size);
3532
+
3533
+		fifo_size = mci_readl(host, INTMASK);
3534
+		fifo_size &= ~SDMMC_INT_HTO;
3535
+		mci_writel(host, INTMASK, fifo_size);
3536
+
3537
+		host->slot->mmc->caps &= ~(MMC_CAP_UHS_DDR50 | MMC_CAP_UHS_SDR104 |
3538
+					   MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR25 |
3539
+					   MMC_CAP_UHS_SDR12);
3540
+	}
3541
+
35103542 	/* Now that slots are all setup, we can enable card detect */
35113543 	dw_mci_enable_cd(host);
35123544 
....@@ -3604,18 +3636,26 @@
36043636 	 * Restore the initial value at FIFOTH register
36053637 	 * And Invalidate the prev_blksz with zero
36063638 	 */
3607
-	 mci_writel(host, FIFOTH, host->fifoth_val);
3608
-	 host->prev_blksz = 0;
3639
+	mci_writel(host, FIFOTH, host->fifoth_val);
3640
+	host->prev_blksz = 0;
36093641 
36103642 	/* Put in max timeout */
36113643 	mci_writel(host, TMOUT, 0xFFFFFFFF);
36123644 
36133645 	mci_writel(host, RINTSTS, 0xFFFFFFFF);
3614
-	mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER |
3615
-		   SDMMC_INT_TXDR | SDMMC_INT_RXDR |
3616
-		   DW_MCI_ERROR_FLAGS);
3646
+	mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | DW_MCI_ERROR_FLAGS);
36173647 	mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE);
36183648 
3649
+	if (host->is_rv1106_sd) {
3650
+		/* Select IDMAC interface */
3651
+		ret = mci_readl(host, CTRL);
3652
+		ret |= SDMMC_CTRL_USE_IDMAC;
3653
+		mci_writel(host, CTRL, ret);
3654
+
3655
+		ret = mci_readl(host, INTMASK);
3656
+		ret &= ~SDMMC_INT_HTO;
3657
+		mci_writel(host, INTMASK, ret);
3658
+	}
36193659 
36203660 	if (host->slot->mmc->pm_flags & MMC_PM_KEEP_POWER)
36213661 		dw_mci_set_ios(host->slot->mmc, &host->slot->mmc->ios);