On Wed, Jun 5, 2013 at 1:56 PM, Doug Anderson <dianders@xxxxxxxxxxxx> wrote: > If the early MMU mapping of the UART happens to get booted out of the > TLB between the start of paging_init() and when we finally re-add the > UART at the very end of s3c_init_cpu(), we'll get a hang at bootup if > we've got early_printk enabled. Avoid this hang by calling > debug_ll_io_init() early. > > Without this patch, you can reliably reproduce a hang when early > printk is enabled by adding flush_tlb_all() at the start of > exynos_init_io(). After this patch the hang goes away. > > Signed-off-by: Doug Anderson <dianders@xxxxxxxxxxxx> Acked-by: Olof Johansson <olof@xxxxxxxxx> Kukjin, this seems appropriate for 3.10. Do you have other fixes queued or should I apply this directly? -Olof -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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