Commits
Stephen Warren committed 6d7d7b3ecd2
ARM: tegra: Pass uncompress.h UART selection to DEBUG_LL uncompress.h now saves the selected UART's physical address in Tegra's IRAM, along with a cookie to indicate validity. The first time it's run, macro addruart in debug-macro.S looks for this cookie, and if it's present, uses the UART address stored there. If not, the static value TEGRA_DEBUG_UART_BASE is used, as was previous behaviour. The static behaviour will thus be used when not booting using a zImage. This work was inspired by work by Doug Anderson <dianders@chromium.org>; see http://lkml.org/lkml/2011/9/26/284. However, this patch relies on the data passing describe above, rather than duplicating the UART selection logic in debug-macro.S; the latest selection logic is more complex due to the need to check reset/clock bits too. Signed-off-by: Stephen Warren <swarren@nvidia.com> Tested-by: Doug Anderson <dianders@chromium.org> Acked-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Olof Johansson <olof@lixom.net>