cmd_mmc.c: Drop open/close mmc sub-commands

The open and close mmc sub-commands implement a hard-coded set of values
specific to the SMDK5250 platform.  Remove these commands as what they
did can be done instead with a series of mmc dev / bootpart / bootbus
commands instead now.

Cc: Amar <amarendra.xt@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Tom Rini <trini@ti.com>
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>

common/cmd_mmc.c

@@ -131,36 +131,6 @@ U_BOOT_CMD(
 	"- display info of the current MMC device"
 );
 
-#ifdef CONFIG_SUPPORT_EMMC_BOOT
-static int boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
-{
-	int err;
-	err = mmc_boot_part_access(mmc, ack, part_num, access);
-
-	if ((err == 0) && (access != 0)) {
-		printf("\t\t\t!!!Notice!!!\n");
-
-		printf("!You must close EMMC boot Partition");
-		printf("after all images are written\n");
-
-		printf("!EMMC boot partition has continuity");
-		printf("at image writing time.\n");
-
-		printf("!So, do not close the boot partition");
-		printf("before all images are written.\n");
-		return 0;
-	} else if ((err == 0) && (access == 0))
-		return 0;
-	else if ((err != 0) && (access != 0)) {
-		printf("EMMC boot partition-%d OPEN Failed.\n", part_num);
-		return 1;
-	} else {
-		printf("EMMC boot partition-%d CLOSE Failed.\n", part_num);
-		return 1;
-	}
-}
-#endif
-
 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	enum mmc_state state;
@@ -273,44 +243,6 @@ static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 
 		return 0;
 #ifdef CONFIG_SUPPORT_EMMC_BOOT
-	} else if ((strcmp(argv[1], "open") == 0) ||
-			(strcmp(argv[1], "close") == 0)) {
-		int dev;
-		struct mmc *mmc;
-		u8 part_num, access = 0;
-
-		if (argc == 4) {
-			dev = simple_strtoul(argv[2], NULL, 10);
-			part_num = simple_strtoul(argv[3], NULL, 10);
-		} else {
-			return CMD_RET_USAGE;
-		}
-
-		mmc = find_mmc_device(dev);
-		if (!mmc) {
-			printf("no mmc device at slot %x\n", dev);
-			return 1;
-		}
-
-		if (IS_SD(mmc)) {
-			printf("SD device cannot be opened/closed\n");
-			return 1;
-		}
-
-		if ((part_num <= 0) || (part_num > MMC_NUM_BOOT_PARTITION)) {
-			printf("Invalid boot partition number:\n");
-			printf("Boot partition number cannot be <= 0\n");
-			printf("EMMC44 supports only 2 boot partitions\n");
-			return 1;
-		}
-
-		if (strcmp(argv[1], "open") == 0)
-			access = part_num; /* enable R/W access to boot part*/
-		else
-			access = 0; /* No access to boot partition */
-
-		/* acknowledge to be sent during boot operation */
-		return boot_part_access(mmc, 1, part_num, access);
 	} else if (strcmp(argv[1], "partconf") == 0) {
 		int dev;
 		struct mmc *mmc;
@@ -498,10 +430,6 @@ U_BOOT_CMD(
 	"mmc dev [dev] [part] - show or set current mmc device [partition]\n"
 	"mmc list - lists available devices\n"
 #ifdef CONFIG_SUPPORT_EMMC_BOOT
-	"mmc open <dev> <boot_partition>\n"
-	" - Enable boot_part for booting and enable R/W access of boot_part\n"
-	"mmc close <dev> <boot_partition>\n"
-	" - Enable boot_part for booting and disable access to boot_part\n"
 	"mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
 	" - Set the BOOT_BUS_WIDTH field of the specified device\n"
 	"mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"

drivers/mmc/mmc.c

@@ -1441,71 +1441,6 @@ int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize,
 	return 0;
 }
 
-/*
- * This function shall form and send the commands to open / close the
- * boot partition specified by user.
- *
- * Input Parameters:
- * ack: 0x0 - No boot acknowledge sent (default)
- *	0x1 - Boot acknowledge sent during boot operation
- * part_num: User selects boot data that will be sent to master
- *	0x0 - Device not boot enabled (default)
- *	0x1 - Boot partition 1 enabled for boot
- *	0x2 - Boot partition 2 enabled for boot
- * access: User selects partitions to access
- *	0x0 : No access to boot partition (default)
- *	0x1 : R/W boot partition 1
- *	0x2 : R/W boot partition 2
- *	0x3 : R/W Replay Protected Memory Block (RPMB)
- *
- * Returns 0 on success.
- */
-int mmc_boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
-{
-	int err;
-	struct mmc_cmd cmd;
-
-	/* Boot ack enable, boot partition enable , boot partition access */
-	cmd.cmdidx = MMC_CMD_SWITCH;
-	cmd.resp_type = MMC_RSP_R1b;
-
-	cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
-			(EXT_CSD_PART_CONF << 16) |
-			((EXT_CSD_BOOT_ACK(ack) |
-			EXT_CSD_BOOT_PART_NUM(part_num) |
-			EXT_CSD_PARTITION_ACCESS(access)) << 8);
-
-	err = mmc_send_cmd(mmc, &cmd, NULL);
-	if (err) {
-		if (access) {
-			debug("mmc boot partition#%d open fail:Error1 = %d\n",
-			      part_num, err);
-		} else {
-			debug("mmc boot partition#%d close fail:Error = %d\n",
-			      part_num, err);
-		}
-		return err;
-	}
-
-	if (access) {
-		/* 4bit transfer mode at booting time. */
-		cmd.cmdidx = MMC_CMD_SWITCH;
-		cmd.resp_type = MMC_RSP_R1b;
-
-		cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
-				(EXT_CSD_BOOT_BUS_WIDTH << 16) |
-				((1 << 0) << 8);
-
-		err = mmc_send_cmd(mmc, &cmd, NULL);
-		if (err) {
-			debug("mmc boot partition#%d open fail:Error2 = %d\n",
-			      part_num, err);
-			return err;
-		}
-	}
-	return 0;
-}
-
 /*
  * Modify EXT_CSD[177] which is BOOT_BUS_WIDTH
  * based on the passed in values for BOOT_BUS_WIDTH, RESET_BOOT_BUS_WIDTH

include/mmc.h

@@ -313,8 +313,6 @@ int mmc_set_dsr(struct mmc *mmc, u16 val);
 /* Function to change the size of boot partition and rpmb partitions */
 int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize,
 					unsigned long rpmbsize);
-/* Function to send commands to open/close the specified boot partition */
-int mmc_boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access);
 /* Function to modify the PARTITION_CONFIG field of EXT_CSD */
 int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access);
 /* Function to modify the BOOT_BUS_WIDTH field of EXT_CSD */