> When doing partition reboot, the boot image won't be reloaded by ROM, > it is just CPU reset to boot entry. The SW has to keep the boot image > inside the RAM unchanged. It includes both the TEXT section and DATA > section. > For SPL, the problem is DATA section will be updated at runtime, so in > next partition reboot the data is not same as the initial value from > cold boot. If any code depends on the initial value, then it will have > problem. > This patch introduces a mechanism to recover the data section > for partition reboot. It adds a new section in image for saving > data section. When from cold boot, the data section will be saved > to that new section at SPL early phase. When from partition reboot, > the data section will be restored from the new section. > Signed-off-by: Ye Li <ye...@nxp.com> > Signed-off-by: Peng Fan <peng....@nxp.com> Applied to u-boot-imx, master, thanks !
Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sba...@denx.de =====================================================================
