ENGR00154666-3: Align u-boot mmc command with community

This patch will enhance mmc command.
1. Add erase command.
2. Abandon dev_no in mmc command. User need to switch slot with "mmc
dev" command.
3. Add mmc part switch command. Enhance partition switch support.
4. Add mmc bootpart. Boot partition support is more flexible.

Signed-off-by: Terry Lv <r65388@freescale.com>

6 files changed, 918 insertions, 571 deletions

diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
index 31a4f05..d82f2db 100644
--- a/common/cmd_mmc.c
+++ b/common/cmd_mmc.c
@@ -27,17 +27,14 @@
 #include <command.h>
 #include <mmc.h>
 
-#ifndef CONFIG_GENERIC_MMC
 static int curr_device = -1;
-
-int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+#ifndef CONFIG_GENERIC_MMC
+int do_mmc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int dev;
 
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
 
 	if (strcmp(argv[1], "init") == 0) {
 		if (argc == 2) {
@@ -48,8 +45,7 @@ int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 		} else if (argc == 3) {
 			dev = (int)simple_strtoul(argv[2], NULL, 10);
 		} else {
-			cmd_usage(cmdtp);
-			return 1;
+			return cmd_usage(cmdtp);
 		}
 
 		if (mmc_legacy_init(dev) != 0) {
@@ -74,14 +70,12 @@ int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 #endif
 			curr_device = dev;
 		} else {
-			cmd_usage(cmdtp);
-			return 1;
+			return cmd_usage(cmdtp);
 		}
 
 		printf("mmc%d is current device\n", curr_device);
 	} else {
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 
 	return 0;
@@ -95,32 +89,12 @@ U_BOOT_CMD(
 );
 #else /* !CONFIG_GENERIC_MMC */
 
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-#define MMC_PARTITION_SWITCH(mmc, part, enable_boot) \
-	do { \
-		if (IS_SD(mmc)) {	\
-			if (part > 1)	{\
-				printf( \
-				"\nError: SD partition can only be 0 or 1\n");\
-				return 1;	\
-			}	\
-			if (sd_switch_partition(mmc, part) < 0) {	\
-				if (part > 0) { \
-					printf("\nError: Unable to switch SD "\
-					"partition\n");\
-					return 1;	\
-				}	\
-			}	\
-		} else {	\
-			if (mmc_switch_partition(mmc, part, enable_boot) \
-				< 0) {	\
-				printf("Error: Fail to switch "	\
-					"partition to %d\n", part);	\
-				return 1;	\
-			}	\
-		} \
-	} while (0)
-#endif
+enum mmc_state {
+	MMC_INVALID,
+	MMC_READ,
+	MMC_WRITE,
+	MMC_ERASE,
+};
 
 static void print_mmcinfo(struct mmc *mmc)
 {
@@ -138,22 +112,19 @@ static void print_mmcinfo(struct mmc *mmc)
 			(mmc->version >> 4) & 0xf, mmc->version & 0xf);
 
 	printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
-	printf("Capacity: %lld\n", mmc->capacity);
+	puts("Capacity: ");
+	print_size(mmc->capacity, "\n");
 
-	if (mmc->bus_width == EMMC_MODE_4BIT_DDR ||
-		mmc->bus_width == EMMC_MODE_8BIT_DDR)
-		printf("Bus Width: %d-bit DDR\n", (mmc->bus_width >> 8));
-	else
-		printf("Bus Width: %d-bit\n", mmc->bus_width);
+	printf("Bus Width: %d-bit %s\n", mmc->bus_width,
+		(mmc->card_caps & EMMC_MODE_4BIT_DDR ||
+		 mmc->card_caps & EMMC_MODE_8BIT_DDR) ? "DDR" : "");
 
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-	if (mmc->boot_size_mult == 0) {
-		printf("Boot Partition Size: %s\n", "No boot partition available");
+	if (mmc->part_config == MMCPART_NOAVAILABLE) {
+		printf("Boot Partition for boot: %s\n",
+			"No boot partition available");
 	} else {
-		printf("Boot Partition Size: %5dKB\n", mmc->boot_size_mult * 128);
-
 		printf("Current Partition for boot: ");
-		switch (mmc->boot_config & EXT_CSD_BOOT_PARTITION_ENABLE_MASK) {
+		switch (mmc->part_config & EXT_CSD_BOOT_PARTITION_ENABLE_MASK) {
 		case EXT_CSD_BOOT_PARTITION_DISABLE:
 			printf("Not bootable\n");
 			break;
@@ -171,185 +142,262 @@ static void print_mmcinfo(struct mmc *mmc)
 			break;
 		}
 	}
-#endif
 }
 
-int do_mmcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct mmc *mmc;
-	int dev_num;
 
-	if (argc < 2)
-		dev_num = 0;
-	else
-		dev_num = simple_strtoul(argv[1], NULL, 0);
+	if (curr_device < 0) {
+		if (get_mmc_num() > 0)
+			curr_device = 0;
+		else {
+			puts("No MMC device available\n");
+			return 1;
+		}
+	}
 
-	mmc = find_mmc_device(dev_num);
+	mmc = find_mmc_device(curr_device);
 
 	if (mmc) {
-		if (mmc_init(mmc))
-			puts("MMC card init failed!\n");
-		else
-			print_mmcinfo(mmc);
-	}
+		mmc_init(mmc);
 
-	return 0;
+		print_mmcinfo(mmc);
+		return 0;
+	} else {
+		printf("no mmc device at slot %x\n", curr_device);
+		return 1;
+	}
 }
 
-U_BOOT_CMD(mmcinfo, 2, 0, do_mmcinfo,
-	"mmcinfo <dev num>-- display MMC info",
+U_BOOT_CMD(
+	mmcinfo, 1, 0, do_mmcinfo,
+	"display MMC info",
+	"    - device number of the device to dislay info of\n"
 	""
 );
 
-int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-	int rc = 0;
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-	u32 part = 0;
-#endif
+	enum mmc_state state;
 
-	switch (argc) {
-	case 3:
-		if (strcmp(argv[1], "rescan") == 0) {
-			int dev = simple_strtoul(argv[2], NULL, 10);
-			struct mmc *mmc = find_mmc_device(dev);
+	if (argc < 2)
+		return cmd_usage(cmdtp);
 
-			if (!mmc)
-				return 1;
+	if (curr_device < 0) {
+		if (get_mmc_num() > 0)
+			curr_device = 0;
+		else {
+			puts("No MMC device available\n");
+			return 1;
+		}
+	}
 
-			mmc_init(mmc);
+	if (strcmp(argv[1], "rescan") == 0) {
+		struct mmc *mmc = find_mmc_device(curr_device);
 
-			return 0;
+		if (!mmc) {
+			printf("no mmc device at slot %x\n", curr_device);
+			return 1;
 		}
 
-	case 0:
-	case 1:
-	case 4:
-		printf("Usage:\n%s\n", cmdtp->usage);
-		return 1;
+		mmc->has_init = 0;
 
-	case 2:
-		if (!strcmp(argv[1], "list")) {
-			print_mmc_devices('\n');
+		if (mmc_init(mmc))
+			return 1;
+		else
 			return 0;
+	} else if (strncmp(argv[1], "part", 4) == 0) {
+		block_dev_desc_t *mmc_dev;
+		struct mmc *mmc = find_mmc_device(curr_device);
+
+		if (!mmc) {
+			printf("no mmc device at slot %x\n", curr_device);
+			return 1;
 		}
+		mmc_init(mmc);
+		mmc_dev = mmc_get_dev(curr_device);
+		if (mmc_dev != NULL &&
+				mmc_dev->type != DEV_TYPE_UNKNOWN) {
+			print_part(mmc_dev);
+			return 0;
+		}
+
+		puts("get mmc type error!\n");
 		return 1;
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-	case 7: /* Fall through */
-		part = simple_strtoul(argv[6], NULL, 10);
-#endif
-	default: /* at least 5 args */
-		if (strcmp(argv[1], "read") == 0) {
-			int dev = simple_strtoul(argv[2], NULL, 10);
-			void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
-			u32 cnt = simple_strtoul(argv[5], NULL, 16);
-			u32 n;
-			u32 blk = simple_strtoul(argv[4], NULL, 16);
+	} else if (strncmp(argv[1], "bootpart", 8) == 0) {
+		int dev, part = -1;
+		struct mmc *mmc;
 
-			struct mmc *mmc = find_mmc_device(dev);
+		if (argc == 2) {
+			dev = curr_device;
+		} else if (argc == 3) {
+			dev = (int)simple_strtoul(argv[2], NULL, 10);
+		} else if (argc == 4) {
+			dev = (int)simple_strtoul(argv[2], NULL, 10);
+			part = (int)simple_strtoul(argv[3], NULL, 10);
+		} else
+			return cmd_usage(cmdtp);
 
-			if (!mmc)
-				return 1;
+		mmc = find_mmc_device(dev);
+		if (!mmc) {
+			printf("no mmc device at slot %x\n", dev);
+			return 1;
+		}
 
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-			printf("\nMMC read: dev # %d, block # %d, "
-				"count %d partition # %d ... \n",
-				dev, blk, cnt, part);
-#else
-			printf("\nMMC read: dev # %d, block # %d,"
-				"count %d ... \n", dev, blk, cnt);
-#endif
+		mmc_init(mmc);
 
-			mmc_init(mmc);
-
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-			if (((mmc->boot_config &
-				EXT_CSD_BOOT_PARTITION_ACCESS_MASK) != part)
-				|| IS_SD(mmc)) {
-				/*
-				 * After mmc_init, we now know whether
-				 * this is a eSD/eMMC which support boot
-				 * partition
-				 */
-				MMC_PARTITION_SWITCH(mmc, part, 0);
-			}
-#endif
+		if (mmc->part_config == MMCPART_NOAVAILABLE) {
+			printf("Card doesn't support boot partition feature\n");
+			return 0;
+		}
 
-			n = mmc->block_dev.block_read(dev, blk, cnt, addr);
+		if (part != -1) {
+			int ret;
 
-			/* flush cache after read */
-			flush_cache((ulong)addr, cnt * 512); /* FIXME */
+			if (part != mmc->boot_part_num) {
+				if (IS_SD(mmc))
+					ret = sd_switch_boot_part(dev, part);
+				else
+					ret = mmc_switch_boot_part(dev, part);
 
-			printf("%d blocks read: %s\n",
-				n, (n==cnt) ? "OK" : "ERROR");
-			return (n == cnt) ? 0 : 1;
-		} else if (strcmp(argv[1], "write") == 0) {
-			int dev = simple_strtoul(argv[2], NULL, 10);
-			void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
-			u32 cnt = simple_strtoul(argv[5], NULL, 16);
-			u32 n;
+				if (!ret)
+					mmc->boot_part_num = part;
+				printf("Switch boot partition to partition #%d, %s\n",
+					part, (!ret) ? "OK" : "ERROR");
+			}
+		}
 
-			struct mmc *mmc = find_mmc_device(dev);
+		printf("Device %d: boot partition %d is for boot\n",
+			dev, mmc->boot_part_num);
+
+		return 0;
+	} else if (strcmp(argv[1], "list") == 0) {
+		print_mmc_devices('\n');
+		return 0;
+	} else if (strcmp(argv[1], "dev") == 0) {
+		int dev, part = -1;
+		struct mmc *mmc;
+
+		if (argc == 2)
+			dev = curr_device;
+		else if (argc == 3)
+			dev = simple_strtoul(argv[2], NULL, 10);
+		else if (argc == 4) {
+			dev = (int)simple_strtoul(argv[2], NULL, 10);
+			part = (int)simple_strtoul(argv[3], NULL, 10);
+			if (part > PART_ACCESS_MASK) {
+				printf("#part_num shouldn't be larger"
+					" than %d\n", PART_ACCESS_MASK);
+				return 1;
+			}
+		} else
+			return cmd_usage(cmdtp);
 
-			int blk = simple_strtoul(argv[4], NULL, 16);
+		mmc = find_mmc_device(dev);
+		if (!mmc) {
+			printf("no mmc device at slot %x\n", dev);
+			return 1;
+		}
 
-			if (!mmc)
+		mmc_init(mmc);
+		if (part != -1) {
+			int ret;
+			if (mmc->part_config == MMCPART_NOAVAILABLE) {
+				printf("Card doesn't support part_switch\n");
 				return 1;
+			}
 
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-			printf("\nMMC write: dev # %d, block # %d, "
-				"count %d, partition # %d ... \n",
-				dev, blk, cnt, part);
-#else
-			printf("\nMMC write: dev # %d, block # %d, "
-				"count %d ... \n",
-				dev, blk, cnt);
-#endif
+			if (part != mmc->part_num) {
+				if (IS_SD(mmc))
+					ret = sd_switch_part(dev, part);
+				else
+					ret = mmc_switch_part(dev, part);
+				if (!ret)
+					mmc->part_num = part;
 
-			mmc_init(mmc);
-
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-			if (((mmc->boot_config &
-				EXT_CSD_BOOT_PARTITION_ACCESS_MASK) != part)
-				|| IS_SD(mmc)) {
-				/*
-				 * After mmc_init, we now know whether this is a
-				 * eSD/eMMC which support boot partition
-				 */
-				MMC_PARTITION_SWITCH(mmc, part, 1);
+				printf("switch to partition #%d, %s\n",
+						part, (!ret) ? "OK" : "ERROR");
 			}
-#endif
+		}
+		curr_device = dev;
+		if (mmc->part_config == MMCPART_NOAVAILABLE)
+			printf("mmc%d is current device\n", curr_device);
+		else
+			printf("mmc%d(part %d) is current device\n",
+				curr_device, mmc->part_num);
 
-			n = mmc->block_dev.block_write(dev, blk, cnt, addr);
+		return 0;
+	}
 
-			printf("%d blocks written: %s\n",
-				n, (n == cnt) ? "OK" : "ERROR");
-			return (n == cnt) ? 0 : 1;
-		} else {
-			printf("Usage:\n%s\n", cmdtp->usage);
-			rc = 1;
+	if (strcmp(argv[1], "read") == 0)
+		state = MMC_READ;
+	else if (strcmp(argv[1], "write") == 0)
+		state = MMC_WRITE;
+	else if (strcmp(argv[1], "erase") == 0)
+		state = MMC_ERASE;
+	else
+		state = MMC_INVALID;
+
+	if (state != MMC_INVALID) {
+		struct mmc *mmc = find_mmc_device(curr_device);
+		int idx = 2;
+		u32 blk, cnt, n;
+		void *addr;
+
+		if (state != MMC_ERASE) {
+			addr = (void *)simple_strtoul(argv[idx], NULL, 16);
+			++idx;
+		} else
+			addr = 0;
+		blk = simple_strtoul(argv[idx], NULL, 16);
+		cnt = simple_strtoul(argv[idx + 1], NULL, 16);
+
+		if (!mmc) {
+			printf("no mmc device at slot %x\n", curr_device);
+			return 1;
+		}
+
+		printf("\nMMC %s: dev # %d, block # %d, count %d ... ",
+				argv[1], curr_device, blk, cnt);
+
+		mmc_init(mmc);
+
+		switch (state) {
+		case MMC_READ:
+			n = mmc->block_dev.block_read(curr_device, blk,
+						      cnt, addr);
+			/* flush cache after read */
+			flush_cache((ulong)addr, cnt * 512); /* FIXME */
+			break;
+		case MMC_WRITE:
+			n = mmc->block_dev.block_write(curr_device, blk,
+						      cnt, addr);
+			break;
+		case MMC_ERASE:
+			n = mmc->block_dev.block_erase(curr_device, blk, cnt);
+			break;
+		default:
+			BUG();
 		}
 
-		return rc;
+		printf("%d blocks %s: %s\n",
+				n, argv[1], (n == cnt) ? "OK" : "ERROR");
+		return (n == cnt) ? 0 : 1;
 	}
+
+	return cmd_usage(cmdtp);
 }
 
-#ifndef CONFIG_BOOT_PARTITION_ACCESS
 U_BOOT_CMD(
 	mmc, 6, 1, do_mmcops,
 	"MMC sub system",
-	"mmc read <device num> addr blk# cnt\n"
-	"mmc write <device num> addr blk# cnt\n"
-	"mmc rescan <device num>\n"
-	"mmc list - lists available devices");
-#else
-U_BOOT_CMD(
-	mmc, 7, 1, do_mmcops,
-	"MMC sub system",
-	"mmc read <device num> addr blk# cnt [partition]\n"
-	"mmc write <device num> addr blk# cnt [partition]\n"
-	"mmc rescan <device num>\n"
+	"read addr blk# cnt\n"
+	"mmc write addr blk# cnt\n"
+	"mmc erase blk# cnt\n"
+	"mmc rescan\n"
+	"mmc part - lists available partition on current mmc device\n"
+	"mmc dev [dev] [part] - show or set current mmc device [partition]\n"
+	"mmc bootpart [dev] [part] - show or set boot partition\n"
 	"mmc list - lists available devices");
 #endif
-#endif
-
diff --git a/drivers/mmc/imx_esdhc.c b/drivers/mmc/imx_esdhc.c
index 093a1b2..052b747 100644
--- a/drivers/mmc/imx_esdhc.c
+++ b/drivers/mmc/imx_esdhc.c
@@ -204,8 +204,8 @@ esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
 	/* Figure out the transfer arguments */
 	xfertyp = esdhc_xfertyp(cmd, data);
 
-	if (mmc->bus_width == EMMC_MODE_4BIT_DDR ||
-		mmc->bus_width == EMMC_MODE_8BIT_DDR)
+	if (mmc->card_caps & EMMC_MODE_4BIT_DDR ||
+		mmc->card_caps & EMMC_MODE_8BIT_DDR)
 		xfertyp |= XFERTYP_DDR_EN;
 
 	/* Send the command */
@@ -327,8 +327,8 @@ void set_sysctl(struct mmc *mmc, uint clock)
 	div -= 1;
 
 	/* for USDHC, pre_div requires another shift in DDR mode */
-	if (cfg->is_usdhc && (mmc->bus_width == EMMC_MODE_4BIT_DDR ||
-		mmc->bus_width == EMMC_MODE_8BIT_DDR))
+	if (cfg->is_usdhc && (mmc->card_caps & EMMC_MODE_4BIT_DDR ||
+		mmc->card_caps & EMMC_MODE_8BIT_DDR))
 		pre_div >>= 1;
 
 	clk = (pre_div << 8) | (div << 4);
@@ -451,15 +451,11 @@ static void esdhc_set_ios(struct mmc *mmc)
 	} else if (mmc->bus_width == 8) {
 		tmp = readl(&regs->proctl) | PROCTL_DTW_8;
 		writel(tmp, &regs->proctl);
-	} else if (mmc->bus_width == EMMC_MODE_4BIT_DDR) {
-		tmp = readl(&regs->proctl) | PROCTL_DTW_4;
-		writel(tmp, &regs->proctl);
-		esdhc_dll_setup(mmc);
-	} else if (mmc->bus_width == EMMC_MODE_8BIT_DDR) {
-		tmp = readl(&regs->proctl) | PROCTL_DTW_8;
-		writel(tmp, &regs->proctl);
-		esdhc_dll_setup(mmc);
 	}
+
+	if (mmc->card_caps & EMMC_MODE_4BIT_DDR ||
+		mmc->card_caps & EMMC_MODE_8BIT_DDR)
+		esdhc_dll_setup(mmc);
 }
 
 static int esdhc_init(struct mmc *mmc)
@@ -546,11 +542,11 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
 	mmc->host_caps = MMC_MODE_4BIT;
 
 	if (caps & ESDHC_HOSTCAPBLT_HSS)
-		mmc->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
+		mmc->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS | MMC_MODE_HC;
 
-/* Do not advertise DDR capability for uSDHC on MX50 since
- *  it is to be used in SDR mode only. Use eSDHC for DDR mode.
- */
+	/* Do not advertise DDR capability for uSDHC on MX50 since
+	*  it is to be used in SDR mode only. Use eSDHC for DDR mode.
+	*/
 #ifndef CONFIG_MX50_ENABLE_USDHC_SDR
 	if (cfg->is_usdhc)
 		mmc->host_caps |= EMMC_MODE_4BIT_DDR;
@@ -559,7 +555,6 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
 	if (detect_mmc_emmc_ddr_port(cfg))
 		mmc->host_caps |= EMMC_MODE_4BIT_DDR;
 #endif
-
 #endif /* #ifndef CONFIG_MX50_ENABLE_USDHC_SDR */
 
 	mmc->f_min = 400000;
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index cf2a9a6..b5d200f 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2008-2011 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc.
  * Terry Lv
  *
  * Copyright 2008, Freescale Semiconductor, Inc
@@ -33,9 +33,13 @@
 #include <part.h>
 #include <malloc.h>
 #include <linux/list.h>
-#include <mmc.h>
 #include <div64.h>
 
+/* Set block count limit because of 16 bit register limit on some hardware*/
+#ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT
+#define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535
+#endif
+
 static struct list_head mmc_devices;
 static int cur_dev_num = -1;
 
@@ -47,13 +51,105 @@ int __board_mmc_getcd(u8 *cd, struct mmc *mmc)
 int board_mmc_getcd(u8 *cd, struct mmc *mmc)__attribute__((weak,
 	alias("__board_mmc_getcd")));
 
-static int mmc_send_cmd(struct mmc *mmc,
-	struct mmc_cmd *cmd, struct mmc_data *data)
+int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
 {
+#ifdef CONFIG_MMC_TRACE
+	int ret;
+	int i;
+	u8 *ptr;
+
+	printf("CMD_SEND:%d\n", cmd->cmdidx);
+	printf("\t\tARG\t\t\t 0x%08X\n", cmd->cmdarg);
+	printf("\t\tFLAG\t\t\t %d\n", cmd->flags);
+	ret = mmc->send_cmd(mmc, cmd, data);
+	switch (cmd->resp_type) {
+	case MMC_RSP_NONE:
+		printf("\t\tMMC_RSP_NONE\n");
+		break;
+	case MMC_RSP_R1:
+		printf("\t\tMMC_RSP_R1,5,6,7 \t 0x%08X\n",
+			cmd->response[0]);
+		break;
+	case MMC_RSP_R1b:
+		printf("\t\tMMC_RSP_R1b\t\t 0x%08X\n",
+			cmd->response[0]);
+		break;
+	case MMC_RSP_R2:
+		printf("\t\tMMC_RSP_R2\t\t 0x%08X\n",
+			cmd->response[0]);
+		printf("\t\t          \t\t 0x%08X\n",
+			cmd->response[1]);
+		printf("\t\t          \t\t 0x%08X\n",
+			cmd->response[2]);
+		printf("\t\t          \t\t 0x%08X\n",
+			cmd->response[3]);
+		printf("\n");
+		printf("\t\t\t\t\tDUMPING DATA\n");
+		for (i = 0; i < 4; i++) {
+			int j;
+			printf("\t\t\t\t\t%03d - ", i*4);
+			ptr = &cmd->response[i];
+			ptr += 3;
+			for (j = 0; j < 4; j++)
+				printf("%02X ", *ptr--);
+			printf("\n");
+		}
+		break;
+	case MMC_RSP_R3:
+		printf("\t\tMMC_RSP_R3,4\t\t 0x%08X\n",
+			cmd->response[0]);
+		break;
+	default:
+		printf("\t\tERROR MMC rsp not supported\n");
+		break;
+	}
+	return ret;
+#else
 	return mmc->send_cmd(mmc, cmd, data);
+#endif
+}
+
+int mmc_send_status(struct mmc *mmc, int timeout)
+{
+	struct mmc_cmd cmd;
+	int err;
+#ifdef CONFIG_MMC_TRACE
+	int status;
+#endif
+
+	cmd.cmdidx = MMC_CMD_SEND_STATUS;
+	cmd.resp_type = MMC_RSP_R1;
+	cmd.cmdarg = 0;
+	cmd.flags = 0;
+
+	do {
+		err = mmc_send_cmd(mmc, &cmd, NULL);
+		if (err)
+			return err;
+		else if (cmd.response[0] & MMC_STATUS_RDY_FOR_DATA)
+			break;
+
+		udelay(1000);
+
+		if (cmd.response[0] & MMC_STATUS_MASK) {
+			printf("Status Error: 0x%08X\n", cmd.response[0]);
+			return COMM_ERR;
+		}
+	} while (timeout--);
+
+#ifdef CONFIG_MMC_TRACE
+	status = (cmd.response[0] & MMC_STATUS_CURR_STATE) >> 9;
+	printf("CURR STATE:%d\n", status);
+#endif
+	if (!timeout) {
+		printf("Timeout waiting card ready\n");
+		return TIMEOUT;
+	}
+
+	return 0;
 }
 
-static int mmc_set_blocklen(struct mmc *mmc, int len)
+int mmc_set_blocklen(struct mmc *mmc, int len)
 {
 	struct mmc_cmd cmd;
 
@@ -82,11 +178,94 @@ struct mmc *find_mmc_device(int dev_num)
 	return NULL;
 }
 
+static ulong mmc_erase_t(struct mmc *mmc, ulong start, lbaint_t blkcnt)
+{
+	struct mmc_cmd cmd;
+	ulong end;
+	int err, start_cmd, end_cmd;
+
+	if (mmc->high_capacity)
+		end = start + blkcnt - 1;
+	else {
+		end = (start + blkcnt - 1) * mmc->write_bl_len;
+		start *= mmc->write_bl_len;
+	}
+
+	if (IS_SD(mmc)) {
+		start_cmd = SD_CMD_ERASE_WR_BLK_START;
+		end_cmd = SD_CMD_ERASE_WR_BLK_END;
+	} else {
+		start_cmd = MMC_CMD_ERASE_GROUP_START;
+		end_cmd = MMC_CMD_ERASE_GROUP_END;
+	}
+
+	cmd.cmdidx = start_cmd;
+	cmd.cmdarg = start;
+	cmd.resp_type = MMC_RSP_R1;
+	cmd.flags = 0;
+
+	err = mmc_send_cmd(mmc, &cmd, NULL);
+	if (err)
+		goto err_out;
+
+	cmd.cmdidx = end_cmd;
+	cmd.cmdarg = end;
+
+	err = mmc_send_cmd(mmc, &cmd, NULL);
+	if (err)
+		goto err_out;
+
+	cmd.cmdidx = MMC_CMD_ERASE;
+	cmd.cmdarg = SECURE_ERASE;
+	cmd.resp_type = MMC_RSP_R1b;
+
+	err = mmc_send_cmd(mmc, &cmd, NULL);
+	if (err)
+		goto err_out;
+
+	return 0;
+
+err_out:
+	puts("mmc erase failed\n");
+	return err;
+}
+
+static unsigned long
+mmc_berase(int dev_num, unsigned long start, lbaint_t blkcnt)
+{
+	int err = 0;
+	struct mmc *mmc = find_mmc_device(dev_num);
+	lbaint_t blk = 0, blk_r = 0;
+
+	if (!mmc)
+		return -1;
+
+	if ((start % mmc->erase_grp_size) || (blkcnt % mmc->erase_grp_size))
+		printf("\n\nCaution! Your devices Erase group is 0x%x\n"
+			"The erase range would be change to 0x%lx~0x%lx\n\n",
+		       mmc->erase_grp_size, start & ~(mmc->erase_grp_size - 1),
+		       ((start + blkcnt + mmc->erase_grp_size)
+		       & ~(mmc->erase_grp_size - 1)) - 1);
+
+	while (blk < blkcnt) {
+		blk_r = ((blkcnt - blk) > mmc->erase_grp_size) ?
+			mmc->erase_grp_size : (blkcnt - blk);
+		err = mmc_erase_t(mmc, start + blk, blk_r);
+		if (err)
+			break;
+
+		blk += blk_r;
+	}
+
+	return blk;
+}
+
 static ulong
 mmc_write_blocks(struct mmc *mmc, ulong start, lbaint_t blkcnt, const void*src)
 {
 	struct mmc_cmd cmd;
 	struct mmc_data data;
+	int timeout = 1000;
 
 	if ((start + blkcnt) > mmc->block_dev.lba) {
 		printf("MMC: block number 0x%lx exceeds max(0x%lx)\n",
@@ -117,7 +296,10 @@ mmc_write_blocks(struct mmc *mmc, ulong start, lbaint_t blkcnt, const void*src)
 		return 0;
 	}
 
-	if (blkcnt > 1) {
+	/* SPI multiblock writes terminate using a special
+	 * token, not a STOP_TRANSMISSION request.
+	 */
+	if (!mmc_host_is_spi(mmc) && blkcnt > 1) {
 		cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION;
 		cmd.cmdarg = 0;
 		cmd.resp_type = MMC_RSP_R1b;
@@ -126,6 +308,9 @@ mmc_write_blocks(struct mmc *mmc, ulong start, lbaint_t blkcnt, const void*src)
 			printf("mmc fail to send stop cmd\n");
 			return 0;
 		}
+
+		/* Waiting for the ready status */
+		mmc_send_status(mmc, timeout);
 	}
 
 	return blkcnt;
@@ -143,8 +328,8 @@ mmc_bwrite(int dev_num, ulong start, lbaint_t blkcnt, const void *src)
 
 	blklen = mmc->write_bl_len;
 
-	if (mmc->bus_width == EMMC_MODE_4BIT_DDR ||
-		mmc->bus_width == EMMC_MODE_8BIT_DDR) {
+	if (mmc->card_caps & EMMC_MODE_4BIT_DDR ||
+		mmc->card_caps & EMMC_MODE_8BIT_DDR) {
 		err = 0;
 		blklen = 512;
 	} else
@@ -156,11 +341,7 @@ mmc_bwrite(int dev_num, ulong start, lbaint_t blkcnt, const void *src)
 	}
 
 	do {
-		/*
-		 * The 65535 constraint comes from some hardware has
-		 * only 16 bit width block number counter
-		 */
-		cur = (blocks_todo > 65535) ? 65535 : blocks_todo;
+		cur = (blocks_todo > mmc->b_max) ?  mmc->b_max : blocks_todo;
 		if (mmc_write_blocks(mmc, start, cur, src) != cur)
 			return 0;
 		blocks_todo -= cur;
@@ -176,6 +357,7 @@ static int mmc_read_blocks(struct mmc *mmc, void *dst,
 {
 	struct mmc_cmd cmd;
 	struct mmc_data data;
+	int timeout = 1000;
 
 	if (blkcnt > 1)
 		cmd.cmdidx = MMC_CMD_READ_MULTIPLE_BLOCK;
@@ -207,6 +389,9 @@ static int mmc_read_blocks(struct mmc *mmc, void *dst,
 			printf("mmc fail to send stop cmd\n");
 			return 0;
 		}
+
+		/* Waiting for the ready status */
+		mmc_send_status(mmc, timeout);
 	}
 
 	return blkcnt;
@@ -230,8 +415,8 @@ static ulong mmc_bread(int dev_num, ulong start, lbaint_t blkcnt, void *dst)
 		return 0;
 	}
 
-	if (mmc->bus_width == EMMC_MODE_4BIT_DDR ||
-		mmc->bus_width == EMMC_MODE_8BIT_DDR) {
+	if (mmc->card_caps & EMMC_MODE_4BIT_DDR ||
+		mmc->card_caps & EMMC_MODE_8BIT_DDR) {
 		blklen = 512;
 		err = 0;
 	} else {
@@ -245,11 +430,7 @@ static ulong mmc_bread(int dev_num, ulong start, lbaint_t blkcnt, void *dst)
 	}
 
 	do {
-		/*
-		 * The 65535 constraint comes from some hardware has
-		 * only 16 bit width block number counter
-		 */
-		cur = (blocks_todo > 65535) ? 65535 : blocks_todo;
+		cur = (blocks_todo > mmc->b_max) ?  mmc->b_max : blocks_todo;
 		if (mmc_read_blocks(mmc, dst, start, cur) != cur)
 			return 0;
 		blocks_todo -= cur;
@@ -282,7 +463,7 @@ static int mmc_go_idle(struct mmc *mmc)
 	return 0;
 }
 
-static int
+int
 sd_send_op_cond(struct mmc *mmc)
 {
 	int timeout = 1000;
@@ -310,7 +491,8 @@ sd_send_op_cond(struct mmc *mmc)
 		 * how to manage low voltages SD card is not yet
 		 * specified.
 		 */
-		cmd.cmdarg = mmc->voltages & 0xff8000;
+		cmd.cmdarg = mmc_host_is_spi(mmc) ? 0 :
+			(mmc->voltages & 0xff8000);
 
 		if (mmc->version == SD_VERSION_2)
 			cmd.cmdarg |= OCR_HCS;
@@ -329,6 +511,18 @@ sd_send_op_cond(struct mmc *mmc)
 	if (mmc->version != SD_VERSION_2)
 		mmc->version = SD_VERSION_1_0;
 
+	if (mmc_host_is_spi(mmc)) { /* read OCR for spi */
+		cmd.cmdidx = MMC_CMD_SPI_READ_OCR;
+		cmd.resp_type = MMC_RSP_R3;
+		cmd.cmdarg = 0;
+		cmd.flags = 0;
+
+		err = mmc_send_cmd(mmc, &cmd, NULL);
+
+		if (err)
+			return err;
+	}
+
 	mmc->ocr = cmd.response[0];
 
 	mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS);
@@ -339,17 +533,37 @@ sd_send_op_cond(struct mmc *mmc)
 
 static int mmc_send_op_cond(struct mmc *mmc)
 {
-	int timeout = 1000;
+	int timeout = 10000;
 	struct mmc_cmd cmd;
 	int err;
 
 	/* Some cards seem to need this */
 	mmc_go_idle(mmc);
 
+	/* Asking to the card its capabilities */
+	cmd.cmdidx = MMC_CMD_SEND_OP_COND;
+	cmd.resp_type = MMC_RSP_R3;
+	cmd.cmdarg = 0;
+	cmd.flags = 0;
+
+	err = mmc_send_cmd(mmc, &cmd, NULL);
+
+	if (err)
+		return err;
+
+	udelay(1000);
+
 	do {
 		cmd.cmdidx = MMC_CMD_SEND_OP_COND;
 		cmd.resp_type = MMC_RSP_R3;
-		cmd.cmdarg = OCR_HCS | mmc->voltages;
+		cmd.cmdarg = (mmc_host_is_spi(mmc) ? 0 :
+				(mmc->voltages &
+				(cmd.response[0] & OCR_VOLTAGE_MASK)) |
+				(cmd.response[0] & OCR_ACCESS_MODE));
+
+		if (mmc->host_caps & MMC_MODE_HC)
+			cmd.cmdarg |= OCR_HCS;
+
 		cmd.flags = 0;
 
 		err = mmc_send_cmd(mmc, &cmd, NULL);
@@ -363,6 +577,18 @@ static int mmc_send_op_cond(struct mmc *mmc)
 	if (timeout <= 0)
 		return UNUSABLE_ERR;
 
+	if (mmc_host_is_spi(mmc)) { /* read OCR for spi */
+		cmd.cmdidx = MMC_CMD_SPI_READ_OCR;
+		cmd.resp_type = MMC_RSP_R3;
+		cmd.cmdarg = 0;
+		cmd.flags = 0;
+
+		err = mmc_send_cmd(mmc, &cmd, NULL);
+
+		if (err)
+			return err;
+	}
+
 	mmc->version = MMC_VERSION_UNKNOWN;
 	mmc->ocr = cmd.response[0];
 
@@ -373,7 +599,7 @@ static int mmc_send_op_cond(struct mmc *mmc)
 }
 
 
-static int mmc_send_ext_csd(struct mmc *mmc, char *ext_csd)
+int mmc_send_ext_csd(struct mmc *mmc, char *ext_csd)
 {
 	struct mmc_cmd cmd;
 	struct mmc_data data;
@@ -396,68 +622,67 @@ static int mmc_send_ext_csd(struct mmc *mmc, char *ext_csd)
 }
 
 
-static int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value)
+int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value)
 {
 	struct mmc_cmd cmd;
+	int timeout = 1000;
+	int ret;
 
 	cmd.cmdidx = MMC_CMD_SWITCH;
 	cmd.resp_type = MMC_RSP_R1b;
 	cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
-		(index << 16) |
-		(value << 8);
+				 (index << 16) |
+				 (value << 8);
 	cmd.flags = 0;
 
-	return mmc_send_cmd(mmc, &cmd, NULL);
+	ret = mmc_send_cmd(mmc, &cmd, NULL);
+
+	/* Waiting for the ready status */
+	mmc_send_status(mmc, timeout);
+
+	return ret;
+
 }
 
-static int mmc_change_freq(struct mmc *mmc)
+int mmc_change_freq(struct mmc *mmc)
 {
-	char *ext_csd;
+	char ext_csd[512];
 	char cardtype;
 	int err;
 
 	mmc->card_caps = 0;
 
+	if (mmc_host_is_spi(mmc))
+		return 0;
+
 	/* Only version 4 supports high-speed */
 	if (mmc->version < MMC_VERSION_4)
 		return 0;
 
 	mmc->card_caps |= ((mmc->host_caps & MMC_MODE_8BIT)
-		? MMC_MODE_8BIT : MMC_MODE_4BIT);
-
-	ext_csd = (char *)malloc(512);
-
-	if (!ext_csd) {
-		puts("Could not allocate buffer for MMC ext csd!\n");
-		return -1;
-	}
+				? MMC_MODE_8BIT : MMC_MODE_4BIT);
 
 	err = mmc_send_ext_csd(mmc, ext_csd);
 
 	if (err)
-		goto err_rtn;
-
-	/* Cards with density > 2GiB are sector addressed */
-	if ((ext_csd[212] || ext_csd[213] || ext_csd[214] || ext_csd[215]) &&
-			((mmc->capacity > (2u * 1024 * 1024 * 1024) / 512)))
-		mmc->high_capacity = 1;
+		return err;
 
-	cardtype = ext_csd[EXT_CSD_CARD_TYPE] & 0xf;
+	cardtype = ext_csd[196] & 0xf;
 
 	err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, 1);
 
 	if (err)
-		goto err_rtn;
+		return err;
 
 	/* Now check to see that it worked */
 	err = mmc_send_ext_csd(mmc, ext_csd);
 
 	if (err)
-		goto err_rtn;
+		return err;
 
 	/* No high-speed support */
-	if (!ext_csd[EXT_CSD_HS_TIMING])
-		goto no_err_rtn;
+	if (!ext_csd[185])
+		return 0;
 
 	/* High Speed is set, there are two types: 52MHz and 26MHz */
 	if (cardtype & MMC_HS_52MHZ)
@@ -472,16 +697,146 @@ static int mmc_change_freq(struct mmc *mmc)
 			mmc->card_caps |= EMMC_MODE_4BIT_DDR;
 	}
 
-no_err_rtn:
-	free(ext_csd);
 	return 0;
+}
+
+int mmc_switch_part(int dev_num, unsigned int part_num)
+{
+	struct mmc *mmc = find_mmc_device(dev_num);
+
+	if (!mmc)
+		return -1;
+
+	return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
+			  (mmc->part_config & ~PART_ACCESS_MASK)
+			  | (part_num & PART_ACCESS_MASK));
+}
+
+int sd_switch_part(int dev_num, unsigned int part_num)
+{
+	struct mmc *mmc = find_mmc_device(dev_num);
+	struct mmc_cmd cmd;
+	int err;
+
+	if (!mmc)
+		return -1;
+
+	cmd.cmdidx = SD_CMD_SELECT_PARTITION;
+	cmd.resp_type = MMC_RSP_R1;
+	cmd.cmdarg = (part_num & PART_ACCESS_MASK) << 24;
+	cmd.flags = 0;
+
+	err = mmc_send_cmd(mmc, &cmd, NULL);
+
+	if (err)
+		return -1;
+
+	return 0;
+}
+
+int mmc_switch_boot_part(int dev_num, unsigned int part_num)
+{
+	struct mmc *mmc = find_mmc_device(dev_num);
+	char ext_csd[512] = { 0 };
+	int err;
+	char boot_config;
+	char boot_bus_width, card_boot_bus_width;
+
+	/* Partition must be -
+		0 - user area
+		1 - boot partition 1
+		2 - boot partition 2
+	*/
+	if (part_num > 2) {
+		printf("Wrong partition id - "
+			"0 (user area), 1 (boot1), 2 (boot2)\n");
+		return 1;
+	}
+
+	/* Before calling this func, "mmc" struct must have been initialized */
+	if (mmc->version < MMC_VERSION_4) {
+		printf("Error: invalid mmc version! "
+			"mmc version is below version 4!");
+		return -1;
+	}
+
+	err = mmc_send_ext_csd(mmc, ext_csd);
+	if (err) {
+		printf("Warning: fail to get ext csd for MMC!\n");
+		goto err_rtn;
+	}
+
+	boot_config = ext_csd[EXT_CSD_PART_CONF] &
+			EXT_CSD_BOOT_PARTITION_ACCESS_MASK;
+
+	/* Enable access plus boot from that partition and boot_ack bit */
+	boot_config |= (char)(part_num << 3 | 1 << 6);
+
+	err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+			EXT_CSD_PART_CONF, boot_config);
+	if (err) {
+		printf("Error: fail to send SWITCH command to card "
+			"to swich partition for access!\n");
+		goto err_rtn;
+	}
+
+	/* Now check whether it works */
+	err = mmc_send_ext_csd(mmc, ext_csd);
+	if (err) {
+		printf("Warning: fail to get ext csd for MMC!\n");
+		goto err_rtn;
+	}
+
+	if (boot_config != ext_csd[EXT_CSD_PART_CONF]) {
+		printf("Warning: Boot partition switch failed!\n");
+		goto err_rtn;
+	}
+
+	/* Program boot_bus_width field for eMMC 4.4 boot mode */
+	if (ext_csd[EXT_CSD_CARD_TYPE] & 0xC) {
+		/* Configure according to this card's capabilities */
+		if (mmc->card_caps & EMMC_MODE_8BIT_DDR)
+			boot_bus_width =  EXT_CSD_BOOT_BUS_WIDTH_DDR |
+				EXT_CSD_BOOT_BUS_WIDTH_8BIT;
+		else if (mmc->card_caps & EMMC_MODE_4BIT_DDR)
+			boot_bus_width =  EXT_CSD_BOOT_BUS_WIDTH_DDR |
+				EXT_CSD_BOOT_BUS_WIDTH_4BIT;
+		else if (mmc->card_caps & MMC_MODE_8BIT)
+			boot_bus_width = EXT_CSD_BOOT_BUS_WIDTH_8BIT;
+		else if (mmc->card_caps & MMC_MODE_4BIT)
+			boot_bus_width = EXT_CSD_BOOT_BUS_WIDTH_4BIT;
+		else
+			boot_bus_width = 0;
+
+		err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+			EXT_CSD_BOOT_BUS_WIDTH, boot_bus_width);
 
+		/* Ensure that it programmed properly */
+		err = mmc_send_ext_csd(mmc, ext_csd);
+		if (err) {
+			printf("Warning: fail to get ext csd for MMC!\n");
+			goto err_rtn;
+		}
+
+		card_boot_bus_width = ext_csd[EXT_CSD_BOOT_BUS_WIDTH];
+		if (card_boot_bus_width != boot_bus_width) {
+			printf("Warning: current boot_bus_width, 0x%x, is "
+				"not same as requested boot_bus_width 0x%x!\n",
+				card_boot_bus_width, boot_bus_width);
+			goto err_rtn;
+		}
+	}
+
+	return 0;
 err_rtn:
-	free(ext_csd);
-	return err;
+	return -1;
 }
 
-static int sd_switch(struct mmc *mmc, int mode, int group, u8 value, u8 *resp)
+int sd_switch_boot_part(int dev_num, unsigned int part_num)
+{
+	return 0;
+}
+int sd_switch(struct mmc *mmc, int mode, int group, u8 value, u8 *resp)
 {
 	struct mmc_cmd cmd;
 	struct mmc_data data;
@@ -503,7 +858,7 @@ static int sd_switch(struct mmc *mmc, int mode, int group, u8 value, u8 *resp)
 }
 
 
-static int sd_change_freq(struct mmc *mmc)
+int sd_change_freq(struct mmc *mmc)
 {
 	int err;
 	struct mmc_cmd cmd;
@@ -514,6 +869,9 @@ static int sd_change_freq(struct mmc *mmc)
 
 	mmc->card_caps = 0;
 
+	if (mmc_host_is_spi(mmc))
+		return 0;
+
 	/* Read the SCR to find out if this card supports higher speeds */
 	cmd.cmdidx = MMC_CMD_APP_CMD;
 	cmd.resp_type = MMC_RSP_R1;
@@ -565,6 +923,9 @@ retry_scr:
 			break;
 	}
 
+	if (mmc->scr[0] & SD_DATA_4BIT)
+		mmc->card_caps |= MMC_MODE_4BIT;
+
 	/* Version 1.0 doesn't support switching */
 	if (mmc->version == SD_VERSION_1_0)
 		return 0;
@@ -582,9 +943,6 @@ retry_scr:
 			break;
 	}
 
-	if (mmc->scr[0] & SD_DATA_4BIT)
-		mmc->card_caps |= MMC_MODE_4BIT;
-
 	/* If high-speed isn't supported, we return */
 	if (!(__be32_to_cpu(switch_status[3]) & SD_HIGHSPEED_SUPPORTED))
 		return 0;
@@ -602,7 +960,7 @@ retry_scr:
 
 /* frequency bases */
 /* divided by 10 to be nice to platforms without floating point */
-static int fbase[] = {
+static const int fbase[] = {
 	10000,
 	100000,
 	1000000,
@@ -612,7 +970,7 @@ static int fbase[] = {
 /* Multiplier values for TRAN_SPEED.  Multiplied by 10 to be nice
  * to platforms without floating point.
  */
-static int multipliers[] = {
+static const int multipliers[] = {
 	0,	/* reserved */
 	10,
 	12,
@@ -631,7 +989,7 @@ static int multipliers[] = {
 	80,
 };
 
-static void mmc_set_ios(struct mmc *mmc)
+void mmc_set_ios(struct mmc *mmc)
 {
 	mmc->set_ios(mmc);
 }
@@ -649,214 +1007,38 @@ void mmc_set_clock(struct mmc *mmc, uint clock)
 	mmc_set_ios(mmc);
 }
 
-static void mmc_set_bus_width(struct mmc *mmc, uint width)
+void mmc_set_bus_width(struct mmc *mmc, uint width)
 {
 	mmc->bus_width = width;
 
 	mmc_set_ios(mmc);
 }
 
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-/* Return 0/1/2 for partition id before switch; Return -1 if fail to switch */
-int mmc_switch_partition(struct mmc *mmc, uint part, uint enable_boot)
+int mmc_startup(struct mmc *mmc)
 {
-	char *ext_csd;
 	int err;
-	uint old_part, new_part;
-	char boot_config;
-	char boot_bus_width, card_boot_bus_width;
-
-	/* partition must be -
-		0 - user area
-		1 - boot partition 1
-		2 - boot partition 2
-	*/
-	if (part > 2) {
-		printf("\nWrong partition id - "
-			"0 (user area), 1 (boot1), 2 (boot2)\n");
-		return 1;
-	}
-
-	/* Before calling this func, "mmc" struct must have been initialized */
-	if (mmc->version < MMC_VERSION_4) {
-		puts("\nError: invalid mmc version! "
-			"mmc version is below version 4!");
-		return -1;
-	}
-
-	if (mmc->boot_size_mult <= 0) {
-		/* it's a normal SD/MMC but user request to boot partition */
-		printf("\nError: This is a normal SD/MMC card but you"
-			"request to access boot partition\n");
-		return -1;
-	}
-
-	/*
-	 * Part must be 0 (user area), 1 (boot partition1)
-	 * or 2 (boot partition2)
-	 */
-	if (part > 2) {
-		puts("\nError: partition id must be 0(user area), "
-			"1(boot partition1) or 2(boot partition2)\n");
-		return -1;
-	}
-
-	ext_csd = (char *)malloc(512);
-	if (!ext_csd) {
-		puts("\nError: Could not allocate buffer for MMC ext csd!\n");
-		return -1;
-	}
-
-	err = mmc_send_ext_csd(mmc, ext_csd);
-	if (err) {
-		puts("\nWarning: fail to get ext csd for MMC!\n");
-		goto err_rtn;
-	}
-
-	old_part = ext_csd[EXT_CSD_BOOT_CONFIG] &
-			EXT_CSD_BOOT_PARTITION_ACCESS_MASK;
-
-	/* Send SWITCH command to change partition for access */
-	boot_config = (ext_csd[EXT_CSD_BOOT_CONFIG] &
-			~EXT_CSD_BOOT_PARTITION_ACCESS_MASK) |
-			(char)part;
-
-	/* enable access plus boot from that partition and boot_ack bit */
-	if (enable_boot != 0)
-		boot_config = (char)(part) | (char)(part << 3) | (char)(1 << 6);
-
-	err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
-			EXT_CSD_BOOT_CONFIG, boot_config);
-	if (err) {
-		puts("\nError: fail to send SWITCH command to card "
-			"to swich partition for access!\n");
-		goto err_rtn;
-	}
-
-	/* Now check whether it works */
-	err = mmc_send_ext_csd(mmc, ext_csd);
-	if (err) {
-		puts("\nWarning: fail to get ext csd for MMC!\n");
-		goto err_rtn;
-	}
-
-	new_part = ext_csd[EXT_CSD_BOOT_CONFIG] &
-			EXT_CSD_BOOT_PARTITION_ACCESS_MASK;
-	if ((char)part != new_part) {
-		printf("\nWarning: after SWITCH, current part id %d is "
-			"not same as requested partition %d!\n",
-			new_part, part);
-		goto err_rtn;
-	}
-
-	/* Program boot_bus_width field for eMMC 4.4 boot mode */
-	if ((ext_csd[EXT_CSD_CARD_TYPE] & 0xC) && enable_boot != 0) {
-
-		/* Configure according to this host's capabilities */
-		if (mmc->host_caps & EMMC_MODE_8BIT_DDR)
-			boot_bus_width =  EXT_CSD_BOOT_BUS_WIDTH_DDR |
-				EXT_CSD_BOOT_BUS_WIDTH_8BIT;
-		else if (mmc->host_caps & EMMC_MODE_4BIT_DDR)
-			boot_bus_width =  EXT_CSD_BOOT_BUS_WIDTH_DDR |
-				EXT_CSD_BOOT_BUS_WIDTH_4BIT;
-		else if (mmc->host_caps & MMC_MODE_8BIT)
-			boot_bus_width = EXT_CSD_BOOT_BUS_WIDTH_8BIT;
-		else if (mmc->host_caps & MMC_MODE_4BIT)
-			boot_bus_width = EXT_CSD_BOOT_BUS_WIDTH_4BIT;
-		else
-			boot_bus_width = 0;
-
-		err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
-			EXT_CSD_BOOT_BUS_WIDTH, boot_bus_width);
-
-		/* Ensure that it programmed properly */
-		err = mmc_send_ext_csd(mmc, ext_csd);
-		if (err) {
-			puts("\nWarning: fail to get ext csd for MMC!\n");
-			goto err_rtn;
-		}
-
-		card_boot_bus_width = ext_csd[EXT_CSD_BOOT_BUS_WIDTH];
-		if (card_boot_bus_width != boot_bus_width) {
-			printf("\nWarning: current boot_bus_width, 0x%x, is "
-				"not same as requested boot_bus_width 0x%x!\n",
-				card_boot_bus_width, boot_bus_width);
-			goto err_rtn;
-		}
-	}
-
-	/* Seems everything is ok, return the partition id before switch */
-	free(ext_csd);
-	return old_part;
-
-err_rtn:
-	free(ext_csd);
-	return -1;
-}
-
-int sd_switch_partition(struct mmc *mmc, uint part)
-{
+	uint mult, freq;
+	u64 cmult, csize, capacity;
 	struct mmc_cmd cmd;
-	int err;
-
-	if (part > 1) {
-		printf("\nWrong partition id - 0 (user area), 1 (boot1)\n");
-		return 1;
-	}
-
-	cmd.cmdidx = SD_CMD_SELECT_PARTITION;
-	cmd.resp_type = MMC_RSP_R1;
-	cmd.cmdarg = part << 24;
-	cmd.flags = 0;
-
-	err = mmc_send_cmd(mmc, &cmd, NULL);
-
-	if (err)
-		return -1;
-
-	return 0;
-}
-
-static int mmc_get_cur_boot_partition(struct mmc *mmc)
-{
-	char *ext_csd;
-	int err;
-
-	ext_csd = (char *)malloc(512);
-
-	if (!ext_csd) {
-		puts("\nError! Could not allocate buffer for MMC ext csd!\n");
-		return -1;
-	}
+	char ext_csd[512];
+	int timeout = 1000;
 
-	err = mmc_send_ext_csd(mmc, ext_csd);
+#ifdef CONFIG_MMC_SPI_CRC_ON
+	if (mmc_host_is_spi(mmc)) { /* enable CRC check for spi */
+		cmd.cmdidx = MMC_CMD_SPI_CRC_ON_OFF;
+		cmd.resp_type = MMC_RSP_R1;
+		cmd.cmdarg = 1;
+		cmd.flags = 0;
+		err = mmc_send_cmd(mmc, &cmd, NULL);
 
-	if (err) {
-		mmc->boot_config = 0;
-		mmc->boot_size_mult = 0;
-		/* continue since it's not a fatal error */
-	} else {
-		mmc->boot_config = ext_csd[EXT_CSD_BOOT_CONFIG];
-		mmc->boot_size_mult = ext_csd[EXT_CSD_BOOT_SIZE_MULT];
+		if (err)
+			return err;
 	}
-
-	free(ext_csd);
-
-	return err;
-}
-
 #endif
 
-static int mmc_startup(struct mmc *mmc)
-{
-	int err;
-	uint mult, freq;
-	u64 cmult, csize;
-	struct mmc_cmd cmd;
-	char ext_csd[512];
-
 	/* Put the Card in Identify Mode */
-	cmd.cmdidx = MMC_CMD_ALL_SEND_CID;
+	cmd.cmdidx = mmc_host_is_spi(mmc) ? MMC_CMD_SEND_CID :
+		MMC_CMD_ALL_SEND_CID; /* cmd not supported in spi */
 	cmd.resp_type = MMC_RSP_R2;
 	cmd.cmdarg = 0;
 	cmd.flags = 0;
@@ -873,18 +1055,20 @@ static int mmc_startup(struct mmc *mmc)
 	 * For SD cards, get the Relatvie Address.
 	 * This also puts the cards into Standby State
 	 */
-	cmd.cmdidx = SD_CMD_SEND_RELATIVE_ADDR;
-	cmd.cmdarg = mmc->rca << 16;
-	cmd.resp_type = MMC_RSP_R6;
-	cmd.flags = 0;
+	if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */
+		cmd.cmdidx = SD_CMD_SEND_RELATIVE_ADDR;
+		cmd.cmdarg = mmc->rca << 16;
+		cmd.resp_type = MMC_RSP_R6;
+		cmd.flags = 0;
 
-	err = mmc_send_cmd(mmc, &cmd, NULL);
+		err = mmc_send_cmd(mmc, &cmd, NULL);
 
-	if (err)
-		return err;
+		if (err)
+			return err;
 
-	if (IS_SD(mmc))
-		mmc->rca = (cmd.response[0] >> 16) & 0xffff;
+		if (IS_SD(mmc))
+			mmc->rca = (cmd.response[0] >> 16) & 0xffff;
+	}
 
 	/* Get the Card-Specific Data */
 	cmd.cmdidx = MMC_CMD_SEND_CSD;
@@ -894,6 +1078,9 @@ static int mmc_startup(struct mmc *mmc)
 
 	err = mmc_send_cmd(mmc, &cmd, NULL);
 
+	/* Waiting for the ready status */
+	mmc_send_status(mmc, timeout);
+
 	if (err)
 		return err;
 
@@ -960,22 +1147,58 @@ static int mmc_startup(struct mmc *mmc)
 		mmc->write_bl_len = 512;
 
 	/* Select the card, and put it into Transfer Mode */
-	cmd.cmdidx = MMC_CMD_SELECT_CARD;
-	cmd.resp_type = MMC_RSP_R1b;
-	cmd.cmdarg = mmc->rca << 16;
-	cmd.flags = 0;
-	err = mmc_send_cmd(mmc, &cmd, NULL);
+	if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */
+		cmd.cmdidx = MMC_CMD_SELECT_CARD;
+		cmd.resp_type = MMC_RSP_R1b;
+		cmd.cmdarg = mmc->rca << 16;
+		cmd.flags = 0;
+		err = mmc_send_cmd(mmc, &cmd, NULL);
 
-	if (err)
-		return err;
+		if (err)
+			return err;
+	}
 
+	/*
+	 * For SD, its erase group is always one sector
+	 */
+	mmc->erase_grp_size = 1;
+	mmc->boot_part_num = 0;
+	mmc->part_config = MMCPART_NOAVAILABLE;
 	if (!IS_SD(mmc) && (mmc->version >= MMC_VERSION_4)) {
 		/* check  ext_csd version and capacity */
 		err = mmc_send_ext_csd(mmc, ext_csd);
 		if (!err & (ext_csd[192] >= 2)) {
-			mmc->capacity = ext_csd[212] << 0 | ext_csd[213] << 8 |
-					ext_csd[214] << 16 | ext_csd[215] << 24;
-			mmc->capacity *= 512;
+			/*
+			 * According to the JEDEC Standard, the value of
+			 * ext_csd's capacity is valid if the value is more
+			 * than 2GB
+			 */
+			capacity = ext_csd[212] << 0 | ext_csd[213] << 8 |
+				   ext_csd[214] << 16 | ext_csd[215] << 24;
+			capacity *= 512;
+			if ((capacity >> 20) > 2 * 1024)
+				mmc->capacity = capacity;
+		}
+
+		/*
+		 * Check whether GROUP_DEF is set, if yes, read out
+		 * group size from ext_csd directly, or calculate
+		 * the group size from the csd value.
+		 */
+		if (ext_csd[175])
+			mmc->erase_grp_size = ext_csd[224] * 512 * 1024;
+		else {
+			int erase_gsz, erase_gmul;
+			erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10;
+			erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5;
+			mmc->erase_grp_size = (erase_gsz + 1)
+				* (erase_gmul + 1);
+		}
+
+		/* store the partition info of emmc */
+		if (ext_csd[160] & PART_SUPPORT) {
+			mmc->part_config = ext_csd[179];
+			mmc->boot_part_num = (ext_csd[179] >> 3) & 0x7;
 		}
 	}
 
@@ -1017,21 +1240,36 @@ static int mmc_startup(struct mmc *mmc)
 		else
 			mmc_set_clock(mmc, 25000000);
 	} else {
+
 		if (mmc->card_caps & MMC_MODE_4BIT) {
-			/* Set the card to use 4 bit*/
-			err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+			if (mmc->card_caps & EMMC_MODE_4BIT_DDR) {
+				/* Set the card to use 4 bit DDR mode */
+				err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+					EXT_CSD_BUS_WIDTH,
+					EXT_CSD_BUS_WIDTH_4_DDR);
+			} else {
+				/* Set the card to use 4 bit*/
+				err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
 					EXT_CSD_BUS_WIDTH,
 					EXT_CSD_BUS_WIDTH_4);
+			}
 
 			if (err)
 				return err;
 
 			mmc_set_bus_width(mmc, 4);
 		} else if (mmc->card_caps & MMC_MODE_8BIT) {
-			/* Set the card to use 8 bit*/
-			err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+			if (mmc->card_caps & EMMC_MODE_8BIT_DDR) {
+				/* Set the card to use 8 bit DDR mode */
+				err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+					EXT_CSD_BUS_WIDTH,
+					EXT_CSD_BUS_WIDTH_8_DDR);
+			} else {
+				/* Set the card to use 8 bit*/
+				err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
 					EXT_CSD_BUS_WIDTH,
 					EXT_CSD_BUS_WIDTH_8);
+			}
 
 			if (err)
 				return err;
@@ -1039,29 +1277,6 @@ static int mmc_startup(struct mmc *mmc)
 			mmc_set_bus_width(mmc, 8);
 		}
 
-		if (mmc->card_caps & EMMC_MODE_8BIT_DDR) {
-			/* Set the card to use 8 bit DDR mode */
-			err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
-					EXT_CSD_BUS_WIDTH,
-					EXT_CSD_BUS_WIDTH_8_DDR);
-			if (err)
-				return err;
-
-
-			/* Setup the host controller for DDR mode */
-			mmc_set_bus_width(mmc, EMMC_MODE_8BIT_DDR);
-		} else if (mmc->card_caps & EMMC_MODE_4BIT_DDR) {
-			/* Set the card to use 4 bit DDR mode */
-			err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
-					EXT_CSD_BUS_WIDTH,
-					EXT_CSD_BUS_WIDTH_4_DDR);
-			if (err)
-				return err;
-
-			/* Setup the host controller for DDR mode */
-			mmc_set_bus_width(mmc, EMMC_MODE_4BIT_DDR);
-		}
-
 		if (mmc->card_caps & MMC_MODE_HS) {
 			if (mmc->card_caps & MMC_MODE_HS_52MHz)
 				mmc_set_clock(mmc, 52000000);
@@ -1069,10 +1284,6 @@ static int mmc_startup(struct mmc *mmc)
 				mmc_set_clock(mmc, 26000000);
 		} else
 			mmc_set_clock(mmc, 20000000);
-
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-		mmc_get_cur_boot_partition(mmc);
-#endif
 	}
 
 	/* fill in device description */
@@ -1092,7 +1303,7 @@ static int mmc_startup(struct mmc *mmc)
 	return 0;
 }
 
-static int mmc_send_if_cond(struct mmc *mmc)
+int mmc_send_if_cond(struct mmc *mmc)
 {
 	struct mmc_cmd cmd;
 	int err;
@@ -1124,6 +1335,9 @@ int mmc_register(struct mmc *mmc)
 	mmc->block_dev.removable = 1;
 	mmc->block_dev.block_read = mmc_bread;
 	mmc->block_dev.block_write = mmc_bwrite;
+	mmc->block_dev.block_erase = mmc_berase;
+	if (!mmc->b_max)
+		mmc->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
 
 	INIT_LIST_HEAD (&mmc->link);
 
@@ -1132,17 +1346,22 @@ int mmc_register(struct mmc *mmc)
 	return 0;
 }
 
+#ifdef CONFIG_PARTITIONS
 block_dev_desc_t *mmc_get_dev(int dev)
 {
 	struct mmc *mmc = find_mmc_device(dev);
 
 	return mmc ? &mmc->block_dev : NULL;
 }
+#endif
 
 int mmc_init(struct mmc *mmc)
 {
 	int err;
 
+	if (mmc->has_init)
+		return 0;
+
 	err = mmc->init(mmc);
 
 	if (err)
@@ -1157,6 +1376,9 @@ int mmc_init(struct mmc *mmc)
 	if (err)
 		return err;
 
+	/* The internal partition reset to user partition(0) at every CMD0*/
+	mmc->part_num = 0;
+
 	/* Test for SD version 2 */
 	err = mmc_send_if_cond(mmc);
 
@@ -1173,7 +1395,12 @@ int mmc_init(struct mmc *mmc)
 		}
 	}
 
-	return mmc_startup(mmc);
+	err = mmc_startup(mmc);
+	if (err)
+		mmc->has_init = 0;
+	else
+		mmc->has_init = 1;
+	return err;
 }
 
 /*
@@ -1199,12 +1426,17 @@ void print_mmc_devices(char separator)
 		printf("%s: %d", m->name, m->block_dev.dev);
 
 		if (entry->next != &mmc_devices)
-			printf("%c ", separator);
+			printf("%c", separator);
 	}
 
 	printf("\n");
 }
 
+int get_mmc_num(void)
+{
+	return cur_dev_num;
+}
+
 int mmc_initialize(bd_t *bis)
 {
 	INIT_LIST_HEAD (&mmc_devices);
@@ -1217,4 +1449,3 @@ int mmc_initialize(bd_t *bis)
 
 	return 0;
 }
-
diff --git a/include/config_cmd_default.h b/include/config_cmd_default.h
index a5d87a6..db3d781 100644
--- a/include/config_cmd_default.h
+++ b/include/config_cmd_default.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2007 Freescale Semiconductor, Inc.
+ * Copyright (C) 2007-2011 Freescale Semiconductor, Inc.
  *
  * This file is licensed under the terms of the GNU General Public
  * License Version 2. This file is licensed "as is" without any
@@ -39,4 +39,6 @@
 #define CONFIG_CMD_SOURCE	/* "source" command support	*/
 #define CONFIG_CMD_XIMG		/* Load part of Multi Image	*/
 
+#define CONFIG_PARTITIONS	1
+
 #endif	/* _CONFIG_CMD_DEFAULT_H */
diff --git a/include/mmc.h b/include/mmc.h
index 44c8959..dd47dfc 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -16,7 +16,7 @@
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
@@ -43,11 +43,13 @@
 #define MMC_VERSION_4		(MMC_VERSION_MMC | 0x40)
 
 #define MMC_MODE_HS		0x001
-#define MMC_MODE_HS_52MHz	0x010
+#define MMC_MODE_HS_52MHz	0x002
 #define MMC_MODE_4BIT		0x100
 #define MMC_MODE_8BIT		0x200
 #define EMMC_MODE_4BIT_DDR	0x400
 #define EMMC_MODE_8BIT_DDR	0x800
+#define MMC_MODE_SPI		0x010
+#define MMC_MODE_HC		0x020
 
 #define SD_DATA_4BIT	0x00040000
 
@@ -78,14 +80,32 @@
 #define MMC_CMD_READ_MULTIPLE_BLOCK	18
 #define MMC_CMD_WRITE_SINGLE_BLOCK	24
 #define MMC_CMD_WRITE_MULTIPLE_BLOCK	25
+#define MMC_CMD_ERASE_GROUP_START	35
+#define MMC_CMD_ERASE_GROUP_END		36
+#define MMC_CMD_ERASE			38
 #define MMC_CMD_APP_CMD			55
+#define MMC_CMD_SPI_READ_OCR		58
+#define MMC_CMD_SPI_CRC_ON_OFF		59
 
 #define SD_CMD_SEND_RELATIVE_ADDR	3
 #define SD_CMD_SWITCH_FUNC		6
 #define SD_CMD_SEND_IF_COND		8
-#define SD_CMD_SELECT_PARTITION   43
+#define SD_CMD_SELECT_PARTITION		43
+#define SD_CMD_MANAGE_PARTITIONS	44
+#define SD_CMD_QUERY_PARTITIONS		45
+#define SD_SUBCMD_JOIN_PART		0x21
+#define SD_SUBCMD_SPLIT_PART		0x22
+#define SD_SUBCMD_SET_USER_AREA_SIZE	0x23
+#define SD_SUBCMD_EXCHG_PART		0x31
+#define SD_SUBCMD_SET_PART_ATTR		0x61
+#define SD_SUBCMD_SET_DEV_ATTR		0x62
+#define SD_SUBCMD_QUERY_SIZES		0xa1
+#define SD_SUBCMD_QUERY_PART_ATTR	0xb1
+#define SD_SUBCMD_QUERY_DEV_ATTR	0xb2
 
 #define SD_CMD_APP_SET_BUS_WIDTH	6
+#define SD_CMD_ERASE_WR_BLK_START	32
+#define SD_CMD_ERASE_WR_BLK_END		33
 #define SD_CMD_APP_SEND_OP_COND		41
 #define SD_CMD_APP_SEND_SCR		51
 
@@ -95,9 +115,18 @@
 
 #define MMC_HS_TIMING		0x00000100
 #define MMC_HS_52MHZ		0x2
-#define EMMC_MODE_DDR_3V		0x4
-#define OCR_BUSY	0x80000000
-#define OCR_HCS		0x40000000
+#define EMMC_MODE_DDR_3V	0x4
+#define OCR_BUSY		0x80000000
+#define OCR_HCS			0x40000000
+#define OCR_VOLTAGE_MASK	0x007FFF80
+#define OCR_ACCESS_MODE		0x60000000
+
+#define SECURE_ERASE		0x80000000
+
+#define MMC_STATUS_MASK		(~0x0206BF7F)
+#define MMC_STATUS_RDY_FOR_DATA (1 << 8)
+#define MMC_STATUS_CURR_STATE	(0xf << 9)
+#define MMC_STATUS_ERROR	(1 << 19)
 
 #define MMC_VDD_165_195		0x00000080	/* VDD voltage 1.65 - 1.95 */
 #define MMC_VDD_20_21		0x00000100	/* VDD voltage 2.0 ~ 2.1 */
@@ -134,7 +163,7 @@
  */
 
 #define EXT_CSD_BOOT_BUS_WIDTH	177		/* RW */
-#define EXT_CSD_BOOT_CONFIG	179	/* RW */
+#define EXT_CSD_PART_CONF	179	/* R/W */
 #define EXT_CSD_BUS_WIDTH	183	/* R/W */
 #define EXT_CSD_HS_TIMING	185	/* R/W */
 #define EXT_CSD_CARD_TYPE	196	/* RO */
@@ -146,12 +175,12 @@
  * EXT_CSD field definitions
  */
 
-#define EXT_CSD_CMD_SET_NORMAL		(1<<0)
-#define EXT_CSD_CMD_SET_SECURE		(1<<1)
-#define EXT_CSD_CMD_SET_CPSECURE	(1<<2)
+#define EXT_CSD_CMD_SET_NORMAL		(1 << 0)
+#define EXT_CSD_CMD_SET_SECURE		(1 << 1)
+#define EXT_CSD_CMD_SET_CPSECURE	(1 << 2)
 
-#define EXT_CSD_CARD_TYPE_26	(1<<0)	/* Card can run at 26MHz */
-#define EXT_CSD_CARD_TYPE_52	(1<<1)	/* Card can run at 52MHz */
+#define EXT_CSD_CARD_TYPE_26	(1 << 0)	/* Card can run at 26MHz */
+#define EXT_CSD_CARD_TYPE_52	(1 << 1)	/* Card can run at 52MHz */
 
 #define EXT_CSD_BUS_WIDTH_1	0	/* Card is in 1 bit mode */
 #define EXT_CSD_BUS_WIDTH_4	1	/* Card is in 4 bit mode */
@@ -162,7 +191,7 @@
 #define EXT_CSD_BOOT_BUS_WIDTH_1BIT	 	0
 #define EXT_CSD_BOOT_BUS_WIDTH_4BIT	 	1
 #define EXT_CSD_BOOT_BUS_WIDTH_8BIT		2
-#define EXT_CSD_BOOT_BUS_WIDTH_DDR	(1 << 4)
+#define EXT_CSD_BOOT_BUS_WIDTH_DDR		(1 << 4)
 
 #define EXT_CSD_BOOT_PARTITION_ENABLE_MASK	(0x7 << 3)
 #define EXT_CSD_BOOT_PARTITION_DISABLE		(0x0)
@@ -179,21 +208,25 @@
 #define R1_APP_CMD			(1 << 5)
 
 #define MMC_RSP_PRESENT (1 << 0)
-#define MMC_RSP_136     (1 << 1)                /* 136 bit response */
-#define MMC_RSP_CRC     (1 << 2)                /* expect valid crc */
-#define MMC_RSP_BUSY    (1 << 3)                /* card may send busy */
-#define MMC_RSP_OPCODE  (1 << 4)                /* response contains opcode */
+#define MMC_RSP_136	(1 << 1)		/* 136 bit response */
+#define MMC_RSP_CRC	(1 << 2)		/* expect valid crc */
+#define MMC_RSP_BUSY	(1 << 3)		/* card may send busy */
+#define MMC_RSP_OPCODE	(1 << 4)		/* response contains opcode */
 
-#define MMC_RSP_NONE    (0)
-#define MMC_RSP_R1      (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
+#define MMC_RSP_NONE	(0)
+#define MMC_RSP_R1	(MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
 #define MMC_RSP_R1b	(MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE| \
 			MMC_RSP_BUSY)
-#define MMC_RSP_R2      (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
-#define MMC_RSP_R3      (MMC_RSP_PRESENT)
-#define MMC_RSP_R4      (MMC_RSP_PRESENT)
-#define MMC_RSP_R5      (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
-#define MMC_RSP_R6      (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
-#define MMC_RSP_R7      (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
+#define MMC_RSP_R2	(MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
+#define MMC_RSP_R3	(MMC_RSP_PRESENT)
+#define MMC_RSP_R4	(MMC_RSP_PRESENT)
+#define MMC_RSP_R5	(MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
+#define MMC_RSP_R6	(MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
+#define MMC_RSP_R7	(MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
+
+#define MMCPART_NOAVAILABLE	(0xff)
+#define PART_ACCESS_MASK	(0x7)
+#define PART_SUPPORT		(0x1)
 
 struct mmc_cid {
 	unsigned long psn;
@@ -204,6 +237,16 @@ struct mmc_cid {
 	char pnm[7];
 };
 
+/*
+ * WARNING!
+ *
+ * This structure is used by atmel_mci.c only.
+ * It works for the AVR32 architecture but NOT
+ * for ARM/AT91 architectures.
+ * Its use is highly depreciated.
+ * After the atmel_mci.c driver for AVR32 has
+ * been replaced this structure will be removed.
+ */
 struct mmc_csd
 {
 	u8	csd_structure:2,
@@ -268,6 +311,7 @@ struct mmc {
 	void *priv;
 	uint voltages;
 	uint version;
+	uint has_init;
 	uint f_min;
 	uint f_max;
 	int high_capacity;
@@ -280,19 +324,20 @@ struct mmc {
 	uint csd[4];
 	uint cid[4];
 	ushort rca;
+	char part_config;
+	char part_num;
+	char boot_part_num;
 	uint tran_speed;
 	uint read_bl_len;
 	uint write_bl_len;
+	uint erase_grp_size;
 	u64 capacity;
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-	uint boot_config;
-	uint boot_size_mult;
-#endif
 	block_dev_desc_t block_dev;
 	int (*send_cmd)(struct mmc *mmc,
 			struct mmc_cmd *cmd, struct mmc_data *data);
 	void (*set_ios)(struct mmc *mmc);
 	int (*init)(struct mmc *mmc);
+	uint b_max;
 };
 
 int mmc_register(struct mmc *mmc);
@@ -303,13 +348,18 @@ void mmc_set_clock(struct mmc *mmc, uint clock);
 struct mmc *find_mmc_device(int dev_num);
 int mmc_set_dev(int dev_num);
 void print_mmc_devices(char separator);
+int get_mmc_num(void);
 int board_mmc_getcd(u8 *cd, struct mmc *mmc);
-#ifdef CONFIG_BOOT_PARTITION_ACCESS
-int mmc_switch_partition(struct mmc *mmc, uint part, uint enable_boot);
-int sd_switch_partition(struct mmc *mmc, uint part);
-#endif
-
-#ifndef CONFIG_GENERIC_MMC
+int mmc_switch_part(int dev_num, unsigned int part_num);
+int sd_switch_part(int dev_num, unsigned int part_num);
+int mmc_switch_boot_part(int dev_num, unsigned int part_num);
+int sd_switch_boot_part(int dev_num, unsigned int part_num);
+
+#ifdef CONFIG_GENERIC_MMC
+int atmel_mci_init(void *regs);
+#define mmc_host_is_spi(mmc)	((mmc)->host_caps & MMC_MODE_SPI)
+struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode);
+#else
 int mmc_legacy_init(int verbose);
 #endif
 #endif /* _MMC_H_ */
diff --git a/include/part.h b/include/part.h
index 3cdae02..e68ddcc 100644
--- a/include/part.h
+++ b/include/part.h
@@ -2,6 +2,8 @@
  * (C) Copyright 2000-2004
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc.
+ *
  * See file CREDITS for list of people who contributed to this
  * project.
  *
@@ -49,6 +51,9 @@ typedef struct block_dev_desc {
 				       unsigned long start,
 				       lbaint_t blkcnt,
 				       const void *buffer);
+	unsigned long   (*block_erase)(int dev,
+				       unsigned long start,
+				       lbaint_t blkcnt);
 	void		*priv;		/* driver private struct pointer */
 }block_dev_desc_t;
 
@@ -93,55 +98,71 @@ typedef struct disk_partition {
 } disk_partition_t;
 
 /* Misc _get_dev functions */
-block_dev_desc_t* get_dev(char* ifname, int dev);
-block_dev_desc_t* ide_get_dev(int dev);
-block_dev_desc_t* sata_get_dev(int dev);
-block_dev_desc_t* scsi_get_dev(int dev);
-block_dev_desc_t* usb_stor_get_dev(int dev);
-block_dev_desc_t* mmc_get_dev(int dev);
-block_dev_desc_t* systemace_get_dev(int dev);
-block_dev_desc_t* mg_disk_get_dev(int dev);
+#ifdef CONFIG_PARTITIONS
+block_dev_desc_t *get_dev(char* ifname, int dev);
+block_dev_desc_t *ide_get_dev(int dev);
+block_dev_desc_t *sata_get_dev(int dev);
+block_dev_desc_t *scsi_get_dev(int dev);
+block_dev_desc_t *usb_stor_get_dev(int dev);
+block_dev_desc_t *mmc_get_dev(int dev);
+block_dev_desc_t *systemace_get_dev(int dev);
+block_dev_desc_t *mg_disk_get_dev(int dev);
 
 /* disk/part.c */
-int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part (block_dev_desc_t *dev_desc);
-void  init_part (block_dev_desc_t *dev_desc);
+int get_partition_info(block_dev_desc_t *dev_desc, int part, disk_partition_t *info);
+void print_part(block_dev_desc_t *dev_desc);
+void init_part(block_dev_desc_t *dev_desc);
 void dev_print(block_dev_desc_t *dev_desc);
-
+#else
+static inline block_dev_desc_t *get_dev(char* ifname, int dev) { return NULL; }
+static inline block_dev_desc_t *ide_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t *sata_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t *scsi_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t *usb_stor_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t *mmc_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t *systemace_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t *mg_disk_get_dev(int dev) { return NULL; }
+
+static inline int get_partition_info(block_dev_desc_t *dev_desc, int part,
+	disk_partition_t *info) { return -1; }
+static inline void print_part(block_dev_desc_t *dev_desc) {}
+static inline void init_part(block_dev_desc_t *dev_desc) {}
+static inline void dev_print(block_dev_desc_t *dev_desc) {}
+#endif
 
 #ifdef CONFIG_MAC_PARTITION
 /* disk/part_mac.c */
-int get_partition_info_mac (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part_mac (block_dev_desc_t *dev_desc);
-int   test_part_mac (block_dev_desc_t *dev_desc);
+int get_partition_info_mac(block_dev_desc_t *dev_desc, int part, disk_partition_t *info);
+void print_part_mac(block_dev_desc_t *dev_desc);
+int test_part_mac(block_dev_desc_t *dev_desc);
 #endif
 
 #ifdef CONFIG_DOS_PARTITION
 /* disk/part_dos.c */
-int get_partition_info_dos (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part_dos (block_dev_desc_t *dev_desc);
-int   test_part_dos (block_dev_desc_t *dev_desc);
+int get_partition_info_dos(block_dev_desc_t *dev_desc, int part, disk_partition_t *info);
+void print_part_dos(block_dev_desc_t *dev_desc);
+int test_part_dos(block_dev_desc_t *dev_desc);
 #endif
 
 #ifdef CONFIG_ISO_PARTITION
 /* disk/part_iso.c */
-int get_partition_info_iso (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part_iso (block_dev_desc_t *dev_desc);
-int   test_part_iso (block_dev_desc_t *dev_desc);
+int get_partition_info_iso(block_dev_desc_t *dev_desc, int part, disk_partition_t *info);
+void print_part_iso(block_dev_desc_t *dev_desc);
+int test_part_iso(block_dev_desc_t *dev_desc);
 #endif
 
 #ifdef CONFIG_AMIGA_PARTITION
 /* disk/part_amiga.c */
-int get_partition_info_amiga (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part_amiga (block_dev_desc_t *dev_desc);
-int   test_part_amiga (block_dev_desc_t *dev_desc);
+int get_partition_info_amiga(block_dev_desc_t *dev_desc, int part, disk_partition_t *info);
+void print_part_amiga(block_dev_desc_t *dev_desc);
+int test_part_amiga(block_dev_desc_t *dev_desc);
 #endif
 
 #ifdef CONFIG_EFI_PARTITION
 /* disk/part_efi.c */
-int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part_efi (block_dev_desc_t *dev_desc);
-int   test_part_efi (block_dev_desc_t *dev_desc);
+int get_partition_info_efi(block_dev_desc_t *dev_desc, int part, disk_partition_t *info);
+void print_part_efi(block_dev_desc_t *dev_desc);
+int test_part_efi(block_dev_desc_t *dev_desc);
 #endif
 
 #endif /* _PART_H */