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b4d23f7643
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>
26 lines
659 B
C
26 lines
659 B
C
#ifndef __REBOOT_MODE_H
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#define __REBOOT_MODE_H
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/* high 24 bits is tag, low 8 bits is type */
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#define REBOOT_FLAG 0x5242C300
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/* normal boot */
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#define BOOT_NORMAL (REBOOT_FLAG + 0)
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/* enter loader rockusb mode */
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#define BOOT_LOADER (REBOOT_FLAG + 1)
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/* enter recovery */
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#define BOOT_RECOVERY (REBOOT_FLAG + 3)
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/* enter fastboot mode */
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#define BOOT_FASTBOOT (REBOOT_FLAG + 9)
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/* enter charging mode */
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#define BOOT_CHARGING (REBOOT_FLAG + 11)
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/* enter usb mass storage mode */
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#define BOOT_UMS (REBOOT_FLAG + 12)
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/* enter bootrom download mode */
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#define BOOT_BROM_DOWNLOAD 0xEF08A53C
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#ifndef __ASSEMBLY__
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int setup_boot_mode(void);
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#endif
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#endif
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