On Wed, Oct 13, 2021 at 10:58:31AM -0600, Simon Glass wrote: > Hi François, > > On Tue, 12 Oct 2021 at 19:20, François Ozog <francois.o...@linaro.org> wrote: > > > > > > > > Le mer. 13 oct. 2021 à 03:02, Simon Glass <s...@chromium.org> a écrit : > >> > >> QEMU currently generates a devicetree for use with U-Boot. Explain how to > >> obtain it. > >> > >> Signed-off-by: Simon Glass <s...@chromium.org> > >> --- > >> > >> doc/board/emulation/qemu-arm.rst | 12 ++++++++++++ > >> 1 file changed, 12 insertions(+) > >> > >> diff --git a/doc/board/emulation/qemu-arm.rst > >> b/doc/board/emulation/qemu-arm.rst > >> index 97b6ec64905..b458a398c69 100644 > >> --- a/doc/board/emulation/qemu-arm.rst > >> +++ b/doc/board/emulation/qemu-arm.rst > >> @@ -91,3 +91,15 @@ The debug UART on the ARM virt board uses these > >> settings:: > >> CONFIG_DEBUG_UART_PL010=y > >> CONFIG_DEBUG_UART_BASE=0x9000000 > >> CONFIG_DEBUG_UART_CLOCK=0 > >> + > >> +Obtaining the QEMU devicetree > >> +----------------------------- > >> + > >> +QEMU generates its own devicetree to pass to U-Boot and does this by > >> default. > >> +You can use `-dtb u-boot.dtb` to force QEMU to use U-Boot's in-tree > >> version. > > > > this is for either Qemu experts or u-boot for Qemu maintainers. Not for the > > kernel développer as it is recipe for problems: could you add this warning ? > > Yes I can do that...or would it be better to hide this in doc/develop > somewhere with a link here?
Somewhere under doc/develop and an external link to the QEMU documentation on dumpdtb would be good, as it's (as you demonstrate throughout this series) a generic feature. -- Tom
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