fastboot: Add default fastboot_set_reboot_flag implementation
Default implementation of fastboot_set_reboot_flag function that depends
on "bcb" commands could be used in general case if there are no need to
make any platform-specific implementation, otherwise it could be
disabled via Kconfig option FASTBOOT_USE_BCB_SET_REBOOT_FLAG.
Please note that FASTBOOT_USE_BCB_SET_REBOOT_FLAG is mutually exclusive
with some platforms which already have their own implementation of this
function.
Signed-off-by: Roman Kovalivskyi <roman.kovalivskyi@globallogic.com>
diff --git a/drivers/fastboot/fb_bcb_impl.c b/drivers/fastboot/fb_bcb_impl.c
new file mode 100644
index 0000000..89ec360
--- /dev/null
+++ b/drivers/fastboot/fb_bcb_impl.c
@@ -0,0 +1,43 @@
+// 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;
+}