Gigabeat S: Renovate bootloader a bit to show splash, implement verbose, shutdown on low battery, handle hold-switch-on and wait only so long for USB if a USB charger is inserted at boot instead of being connected to a host. 'Bootloader USB mode' display is just part of normal printf stream now. Move interrupt stacks into .bss area so they aren't loaded (for firmware too).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29099 a1c6a512-1295-4272-9138-f99709370657
4 files changed