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fastboot: Implement generic fastboot_set_reboot_flag

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It is possible to implement fastboot_set_reboot_flag in a generic way
if BCB commands are turned on for a target. Using
bcb_set_reboot_reason allows to do this by simply passing string with
correct reboot reason that should be handled during next boot process.

If BCB are turned off, then bcb_set_reboot_reason would simply return
error, so it won't introduce any new behaviour for such targets.

Signed-off-by: Roman Kovalivskyi <roman.kovalivskyi@globallogic.com>
This commit is contained in:
Roman Kovalivskyi
2021-01-26 22:54:56 +02:00
committed by Marek Vasut
parent f80798122a
commit a362ce214f
1 changed files with 15 additions and 1 deletions
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16
drivers/fastboot/fb_common.c
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@@ -10,6 +10,7 @@
* Rob Herring <robh@kernel.org> * Rob Herring <robh@kernel.org>
*/ */
#include <bcb.h>
#include <common.h> #include <common.h>
#include <command.h> #include <command.h>
#include <env.h> #include <env.h>
@@ -90,7 +91,20 @@ void fastboot_okay(const char *reason, char *response)
*/ */
int __weak fastboot_set_reboot_flag(enum fastboot_reboot_reason reason) int __weak fastboot_set_reboot_flag(enum fastboot_reboot_reason reason)
{ {
return -ENOSYS; #if CONFIG_IS_ENABLED(FASTBOOT_FLASH_MMC_DEV)
static const char * const boot_cmds[] = {
[FASTBOOT_REBOOT_REASON_BOOTLOADER] = "bootonce-bootloader",
[FASTBOOT_REBOOT_REASON_FASTBOOTD] = "boot-fastboot",
[FASTBOOT_REBOOT_REASON_RECOVERY] = "boot-recovery"
};
if (reason >= FASTBOOT_REBOOT_REASONS_COUNT)
return -EINVAL;
return bcb_write_reboot_reason(CONFIG_FASTBOOT_FLASH_MMC_DEV, "misc", boot_cmds[reason]);
#else
return -EINVAL;
#endif
} }
/** /**