[RESEND 6/7] Revert "fastboot: Add default fastboot_set_reboot_flag implementation"

[Roman Kovalivskyi <roman.kovalivskyi@globallogic.com>]

This reverts commit 0ebf9842e56c5b8cb7cb1f990bb452cc14af6225.

Current generic implementation of fastboot_set_reboot_flag is somewhat
messy and requires some additional configuration option to be enabled
besides CMD_BCB, so it reverts that implementtion in order to bring a
new cleaner one.

Next commit introduces new generic implementation of
fastboot_set_reboot_flag.

Signed-off-by: Roman Kovalivskyi <roman.kovalivskyi@globallogic.com>
---
 drivers/fastboot/Kconfig       | 12 ----------
 drivers/fastboot/Makefile      |  1 -
 drivers/fastboot/fb_bcb_impl.c | 43 ----------------------------------
 include/fastboot.h             |  9 -------
 4 files changed, 65 deletions(-)
 delete mode 100644 drivers/fastboot/fb_bcb_impl.c

diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig
index 4352ba67a713..d4436dfc9173 100644
--- a/drivers/fastboot/Kconfig
+++ b/drivers/fastboot/Kconfig
@@ -165,18 +165,6 @@ config FASTBOOT_CMD_OEM_FORMAT
 	  relies on the env variable partitions to contain the list of
 	  partitions as required by the gpt command.
 
-config FASTBOOT_USE_BCB_SET_REBOOT_FLAG
-	bool "Use BCB by fastboot to set boot reason"
-	depends on CMD_BCB && !ARCH_MESON && !ARCH_ROCKCHIP && !TARGET_KC1 && \
-	  !TARGET_SNIPER && !TARGET_AM57XX_EVM && !TARGET_DRA7XX_EVM
-	default y
-	help
-	  Fastboot could implement setting of reboot reason in a generic fashion
-	  via BCB commands. BCB commands are able to write reboot reason into
-	  command field of boot control block. In general case it is sufficient
-	  implementation if your platform supports BCB commands and doesn't
-	  require any specific reboot reason handling.
-
 endif # FASTBOOT
 
 endmenu
diff --git a/drivers/fastboot/Makefile b/drivers/fastboot/Makefile
index 2b2c390fe4de..048af5aa8234 100644
--- a/drivers/fastboot/Makefile
+++ b/drivers/fastboot/Makefile
@@ -5,4 +5,3 @@ obj-y += fb_getvar.o
 obj-y += fb_command.o
 obj-$(CONFIG_FASTBOOT_FLASH_MMC) += fb_mmc.o
 obj-$(CONFIG_FASTBOOT_FLASH_NAND) += fb_nand.o
-obj-$(CONFIG_FASTBOOT_USE_BCB_SET_REBOOT_FLAG) += fb_bcb_impl.o
diff --git a/drivers/fastboot/fb_bcb_impl.c b/drivers/fastboot/fb_bcb_impl.c
deleted file mode 100644
index 89ec3601b6f6..000000000000
--- a/drivers/fastboot/fb_bcb_impl.c
+++ /dev/null
@@ -1,43 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright 2020 GlobalLogic.
- * Roman Kovalivskyi <roman.kovalivskyi@globallogic.com>
- */
-
-#include <common.h>
-#include <fastboot.h>
-
-/**
- * fastboot_set_reboot_flag() - Set flag to indicate reboot-bootloader
- *
- * Set flag which indicates that we should reboot into the bootloader
- * following the reboot that fastboot executes after this function.
- *
- * This function should be overridden in your board file with one
- * which sets whatever flag your board specific Android bootloader flow
- * requires in order to re-enter the bootloader.
- */
-int fastboot_set_reboot_flag(enum fastboot_reboot_reason reason)
-{
-	char cmd[64];
-
-	if (reason >= FASTBOOT_REBOOT_REASONS_COUNT)
-		return -EINVAL;
-
-	snprintf(cmd, sizeof(cmd), "bcb load %d misc",
-		 CONFIG_FASTBOOT_FLASH_MMC_DEV);
-
-	if (run_command(cmd, 0))
-		return -ENODEV;
-
-	snprintf(cmd, sizeof(cmd), "bcb set command %s",
-		 fastboot_boot_cmds[reason]);
-
-	if (run_command(cmd, 0))
-		return -ENOEXEC;
-
-	if (run_command("bcb store", 0))
-		return -EIO;
-
-	return 0;
-}
diff --git a/include/fastboot.h b/include/fastboot.h
index 8e9ee80907df..b86b508e69fd 100644
--- a/include/fastboot.h
+++ b/include/fastboot.h
@@ -52,15 +52,6 @@ enum fastboot_reboot_reason {
 	FASTBOOT_REBOOT_REASONS_COUNT
 };
 
-/**
- * BCB boot commands
- */
-static const char * const fastboot_boot_cmds[] = {
-	[FASTBOOT_REBOOT_REASON_BOOTLOADER] = "bootonce-bootloader",
-	[FASTBOOT_REBOOT_REASON_FASTBOOTD] = "boot-fastboot",
-	[FASTBOOT_REBOOT_REASON_RECOVERY] = "boot-recovery"
-};
-
 /**
  * fastboot_response() - Writes a response of the form "$tag$reason".
  *
-- 
2.17.1