[BISECTED] BeagleBone Black doesn't boot after a58147c2dbbf

Tom Rini trini at konsulko.com
Sat Aug 13 17:42:11 CEST 2022


On Sat, Aug 13, 2022 at 06:31:56PM +0300, Matwey V. Kornilov wrote:
> чт, 11 авг. 2022 г. в 19:11, Matwey V. Kornilov <matwey.kornilov at gmail.com>:
> >
> > чт, 11 авг. 2022 г. в 15:53, Alex Kiernan <alex.kiernan at gmail.com>:
> > >
> > > On Thu, Aug 11, 2022 at 1:46 PM Tom Rini <trini at konsulko.com> wrote:
> > > >
> > > > On Thu, Aug 11, 2022 at 10:47:18AM +0300, Matwey V. Kornilov wrote:
> > > >
> > > > > Can somebody please advise me working CONFIG_DEBUG_UART _* values for
> > > > > the board? I think I need to obtain some output from the board to
> > > > > debug it further.
> > > >
> > > > Reading arch/arm/dts/am33xx-l4.dtsi isn't as easy to read as I would
> > > > personally like but 0x44e09000 is UART0 and so forth. Updating
> > > > doc/board/ti/am335x_evm.rst once you're done with a note about using
> > > > DEBUG_UART would be appreciated, thanks.
> > > >
> > >
> > > Some notes I have from a previous life which may be useful, but I'm
> > > afraid I've no way of checking these days:
> > >
> > > * CONFIG_DEBUG_UART=y
> > > * CONFIG_DEBUG_UART_BASE=0x44e09000
> > > * CONFIG_DEBUG_UART_CLOCK=48000000
> > > * CONFIG_DEBUG_UART_OMAP=y
> > > * CONFIG_DEBUG_UART_SHIFT=2
> > > * CONFIG_DEBUG_UART_BOARD_INIT=y
> > > * CONFIG_DEBUG_UART_ANNOUNCE=y
> > >
> >
> > Thanks. Unfortunately, these don't work.
> 
> Ok. The settings were working before 0dba4586 ("arm: Init the debug UART")

Simon, any ideas? This is on am335x_evm_defconfig, for example.

-- 
Tom
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