u-boot/arch/arm/include/asm/arch-rockchip/boot_mode.h
Andy Yan b4d23f7643 rockchip: add support for enter to bootrom download mode
Rockchip bootrom will enter download mode if it returns from
spl/tpl with a non-zero value and couldn't find a valid image
in the backup partition.
This patch provide a method to instruct the system to back to
bootrom download mode by checking the BROM_DOWNLOAD_FLAG register.
As the bootrom download function relys on some modules such as
interrupts, so we need to back to bootrom as early as possbile
before the tpl/spl code override the interrupt configurations.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-21 23:57:23 +01:00

25 lines
659 B
C

#ifndef __REBOOT_MODE_H
#define __REBOOT_MODE_H
/* high 24 bits is tag, low 8 bits is type */
#define REBOOT_FLAG 0x5242C300
/* normal boot */
#define BOOT_NORMAL (REBOOT_FLAG + 0)
/* enter loader rockusb mode */
#define BOOT_LOADER (REBOOT_FLAG + 1)
/* enter recovery */
#define BOOT_RECOVERY (REBOOT_FLAG + 3)
/* enter fastboot mode */
#define BOOT_FASTBOOT (REBOOT_FLAG + 9)
/* enter charging mode */
#define BOOT_CHARGING (REBOOT_FLAG + 11)
/* enter usb mass storage mode */
#define BOOT_UMS (REBOOT_FLAG + 12)
/* enter bootrom download mode */
#define BOOT_BROM_DOWNLOAD 0xEF08A53C
#ifndef __ASSEMBLY__
int setup_boot_mode(void);
#endif
#endif