fastboot have a command "reboot-bootloader" which require the boot loader to reboot and get into fastboot mode again.
Signed-off-by: Kever Yang kever.yang@rock-chips.com ---
arch/arm/mach-rockchip/rk3399/rk3399.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/arch/arm/mach-rockchip/rk3399/rk3399.c b/arch/arm/mach-rockchip/rk3399/rk3399.c index d7a8aa6..729e876 100644 --- a/arch/arm/mach-rockchip/rk3399/rk3399.c +++ b/arch/arm/mach-rockchip/rk3399/rk3399.c @@ -93,3 +93,17 @@ int board_late_init(void)
return 0; } + +#if defined(CONFIG_USB_FUNCTION_FASTBOOT) +int fb_set_reboot_flag(void) +{ + struct rk3399_pmugrf_regs *pmugrf; + + printf("Setting reboot to fastboot flag ...\n"); + pmugrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF); + /* Clear boot mode */ + writel(BOOT_FASTBOOT, &pmugrf->os_reg0); + + return 0; +} +#endif