tree d9b47fb1b20ce0f5364cac399729983f4f3d1462
parent 01ad4937b981e722ca3eb7fab00f779191d5baab
author Bernhard Nortmann <bernhard.nortmann@web.de> 1442508772 +0200
committer Hans de Goede <hdegoede@redhat.com> 1443520207 +0200

sunxi: retrieve FEL-provided values to environment variables

This patch extends the misc_init_r() function on sunxi boards
to test for the presence of a suitable "sunxi" SPL header. If
found, and the loader ("fel" utility) provided a non-zero value
for the boot.scr address, then the corresponding environment
variable fel_scriptaddr gets set.

misc_init_r() also sets (or clears) the "fel_booted" variable depending
on the active boot device, using the same logic as spl_boot_device().

The goal is to provide sufficient information (within the U-Boot
environment) to make intelligent decisions on how to continue the boot
process, allowing specific customizations for the "FEL boot" case.

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>