1 files changed, 54 insertions, 49 deletions

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 02ad79229f6..1d41e8541f3 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -483,11 +483,13 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
 		/* check whether the eMMC card supports BKOPS */
 		if (ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1) {
 			card->ext_csd.bkops = 1;
-			card->ext_csd.bkops_en = ext_csd[EXT_CSD_BKOPS_EN];
+			card->ext_csd.man_bkops_en =
+					(ext_csd[EXT_CSD_BKOPS_EN] &
+						EXT_CSD_MANUAL_BKOPS_MASK);
 			card->ext_csd.raw_bkops_status =
 				ext_csd[EXT_CSD_BKOPS_STATUS];
-			if (!card->ext_csd.bkops_en)
-				pr_info("%s: BKOPS_EN bit is not set\n",
+			if (!card->ext_csd.man_bkops_en)
+				pr_info("%s: MAN_BKOPS_EN bit is not set\n",
 					mmc_hostname(card->host));
 		}
 
@@ -886,7 +888,7 @@ static int mmc_select_bus_width(struct mmc_card *card)
 	unsigned idx, bus_width = 0;
 	int err = 0;
 
-	if (!mmc_can_ext_csd(card) &&
+	if (!mmc_can_ext_csd(card) ||
 	    !(host->caps & (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)))
 		return 0;
 
@@ -1155,38 +1157,6 @@ bus_speed:
 	return err;
 }
 
-const u8 tuning_blk_pattern_4bit[MMC_TUNING_BLK_PATTERN_4BIT_SIZE] = {
-	0xff, 0x0f, 0xff, 0x00, 0xff, 0xcc, 0xc3, 0xcc,
-	0xc3, 0x3c, 0xcc, 0xff, 0xfe, 0xff, 0xfe, 0xef,
-	0xff, 0xdf, 0xff, 0xdd, 0xff, 0xfb, 0xff, 0xfb,
-	0xbf, 0xff, 0x7f, 0xff, 0x77, 0xf7, 0xbd, 0xef,
-	0xff, 0xf0, 0xff, 0xf0, 0x0f, 0xfc, 0xcc, 0x3c,
-	0xcc, 0x33, 0xcc, 0xcf, 0xff, 0xef, 0xff, 0xee,
-	0xff, 0xfd, 0xff, 0xfd, 0xdf, 0xff, 0xbf, 0xff,
-	0xbb, 0xff, 0xf7, 0xff, 0xf7, 0x7f, 0x7b, 0xde,
-};
-EXPORT_SYMBOL(tuning_blk_pattern_4bit);
-
-const u8 tuning_blk_pattern_8bit[MMC_TUNING_BLK_PATTERN_8BIT_SIZE] = {
-	0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00,
-	0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc, 0xcc,
-	0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff, 0xff,
-	0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee, 0xff,
-	0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd, 0xdd,
-	0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, 0xbb,
-	0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff, 0xff,
-	0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, 0xff,
-	0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00,
-	0x00, 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc,
-	0xcc, 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff,
-	0xff, 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee,
-	0xff, 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd,
-	0xdd, 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff,
-	0xbb, 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff,
-	0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee,
-};
-EXPORT_SYMBOL(tuning_blk_pattern_8bit);
-
 /*
  * Execute tuning sequence to seek the proper bus operating
  * conditions for HS200 and HS400, which sends CMD21 to the device.
@@ -1194,7 +1164,6 @@ EXPORT_SYMBOL(tuning_blk_pattern_8bit);
 static int mmc_hs200_tuning(struct mmc_card *card)
 {
 	struct mmc_host *host = card->host;
-	int err = 0;
 
 	/*
 	 * Timing should be adjusted to the HS400 target
@@ -1205,18 +1174,7 @@ static int mmc_hs200_tuning(struct mmc_card *card)
 		if (host->ops->prepare_hs400_tuning)
 			host->ops->prepare_hs400_tuning(host, &host->ios);
 
-	if (host->ops->execute_tuning) {
-		mmc_host_clk_hold(host);
-		err = host->ops->execute_tuning(host,
-				MMC_SEND_TUNING_BLOCK_HS200);
-		mmc_host_clk_release(host);
-
-		if (err)
-			pr_err("%s: tuning execution failed\n",
-				mmc_hostname(host));
-	}
-
-	return err;
+	return mmc_execute_tuning(card);
 }
 
 /*
@@ -1297,6 +1255,12 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 	}
 
 	/*
+	 * Call the optional HC's init_card function to handle quirks.
+	 */
+	if (host->ops->init_card)
+		host->ops->init_card(host, card);
+
+	/*
 	 * For native busses:  set card RCA and quit open drain mode.
 	 */
 	if (!mmc_host_is_spi(host)) {
@@ -1821,6 +1785,46 @@ static int mmc_power_restore(struct mmc_host *host)
 	return ret;
 }
 
+int mmc_can_reset(struct mmc_card *card)
+{
+	u8 rst_n_function;
+
+	rst_n_function = card->ext_csd.rst_n_function;
+	if ((rst_n_function & EXT_CSD_RST_N_EN_MASK) != EXT_CSD_RST_N_ENABLED)
+		return 0;
+	return 1;
+}
+EXPORT_SYMBOL(mmc_can_reset);
+
+static int mmc_reset(struct mmc_host *host)
+{
+	struct mmc_card *card = host->card;
+	u32 status;
+
+	if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
+		return -EOPNOTSUPP;
+
+	if (!mmc_can_reset(card))
+		return -EOPNOTSUPP;
+
+	mmc_host_clk_hold(host);
+	mmc_set_clock(host, host->f_init);
+
+	host->ops->hw_reset(host);
+
+	/* If the reset has happened, then a status command will fail */
+	if (!mmc_send_status(card, &status)) {
+		mmc_host_clk_release(host);
+		return -ENOSYS;
+	}
+
+	/* Set initial state and call mmc_set_ios */
+	mmc_set_initial_state(host);
+	mmc_host_clk_release(host);
+
+	return mmc_power_restore(host);
+}
+
 static const struct mmc_bus_ops mmc_ops = {
 	.remove = mmc_remove,
 	.detect = mmc_detect,
@@ -1831,6 +1835,7 @@ static const struct mmc_bus_ops mmc_ops = {
 	.power_restore = mmc_power_restore,
 	.alive = mmc_alive,
 	.shutdown = mmc_shutdown,
+	.reset = mmc_reset,
 };
 
 /*