mmc: make optional the support for eMMC hardware partitioning

Not all boards have an eMMC and not all users have a need for this.
Allow to compile it out. By default it is still included.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

cmd/mmc.c

@@ -438,6 +438,7 @@ static int do_mmc_list(cmd_tbl_t *cmdtp, int flag,
 	return CMD_RET_SUCCESS;
 }
 
+#if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
 static int parse_hwpart_user(struct mmc_hwpart_conf *pconf,
 			     int argc, char * const argv[])
 {
@@ -587,6 +588,7 @@ static int do_mmc_hwpartition(cmd_tbl_t *cmdtp, int flag,
 		return CMD_RET_FAILURE;
 	}
 }
+#endif
 
 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 static int do_mmc_bootbus(cmd_tbl_t *cmdtp, int flag,
@@ -796,7 +798,9 @@ static cmd_tbl_t cmd_mmc[] = {
 	U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
 	U_BOOT_CMD_MKENT(dev, 3, 0, do_mmc_dev, "", ""),
 	U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
+#if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
 	U_BOOT_CMD_MKENT(hwpartition, 28, 0, do_mmc_hwpartition, "", ""),
+#endif
 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 	U_BOOT_CMD_MKENT(bootbus, 5, 0, do_mmc_bootbus, "", ""),
 	U_BOOT_CMD_MKENT(bootpart-resize, 4, 0, do_mmc_boot_resize, "", ""),

drivers/mmc/Kconfig

@@ -51,6 +51,13 @@ config MMC_QUIRKS
 	  are enabled by default, other may require additionnal flags or are
 	  enabled by the host driver.
 
+config MMC_HW_PARTITIONING
+	bool "Support for HW partitioning command(eMMC)"
+	default y
+	help
+	  This adds a command and an API to do hardware partitioning on eMMC
+	  devices.
+
 config MMC_IO_VOLTAGE
 	bool "Support IO voltage configuration"
 	help

drivers/mmc/mmc.c

@@ -950,6 +950,7 @@ int mmc_switch_part(struct mmc *mmc, unsigned int part_num)
 	return ret;
 }
 
+#if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
 int mmc_hwpart_config(struct mmc *mmc,
 		      const struct mmc_hwpart_conf *conf,
 		      enum mmc_hwpart_conf_mode mode)
@@ -1143,6 +1144,7 @@ int mmc_hwpart_config(struct mmc *mmc,
 
 	return 0;
 }
+#endif
 
 #if !CONFIG_IS_ENABLED(DM_MMC)
 int mmc_getcd(struct mmc *mmc)