Messages in this thread | | | From | Robert Jarzmik <> | Subject | Re: [PATCH] ARM: pxa: fix DFI bus lockups on startup | Date | Sat, 12 Sep 2015 15:12:30 +0200 |
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Robert Jarzmik <robert.jarzmik@free.fr> writes:
> After the conversion of pxa architecture to common clock framework, the > NAND clock can be disabled on startup if no nand driver claims it. > > In this case, it happens that if the bootloader used the NAND and set > the DFI arbitration bit, the next access to a static memory controller > area, such as an ethernet card, the system bus will stall, and the core > will be stalled forever. > > Fix this by clearing the DFI arbritration bit in pxa3xx startup. The bit > will be enabled the pxa3xx-nand driver on need anyway. The only left > requirement is that upon pxa3xx-nand removal, the bit should be cleared > before the clock is disabled. > > Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Queued to pxa/fixes.
-- Robert
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