On 21/12/17 09:40, Peter De Schrijver wrote: > On Wed, Dec 20, 2017 at 10:03:35AM +0000, Jon Hunter wrote: >> >> On 16/11/17 14:29, Peter De Schrijver wrote: >>> Tegra210 has a hw bug which can cause IP blocks to lock up when ungating a >>> domain. The reason is that the logic responsible for resetting the memory >>> built-in self test mode can come up in an undefined state because it doesn't >>> get a clock or reset signal. Work around this by making sure the logic will >>> get some clock edges by ensuring the relevant clock is enabled and temporarily >>> override the relevant second level clock gates (SLCG). >> >> Not sure I follow the 2nd half of the above sentence. > > The logic responsible for resetting the MBIST mode is not clocked during > module reset because the module SLCGs are gated while they shouldn't be. > > Does this make it more clear? :) Yes thanks! Jon -- nvpublic -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
