Messages in this thread | | | Date | Mon, 16 Sep 2019 04:57:14 -0700 (PDT) | From | Paul Walmsley <> | Subject | Re: [PATCH] serial/sifive: select SERIAL_EARLYCON |
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On Tue, 10 Sep 2019, Andreas Schwab wrote:
> On Sep 10 2019, Christoph Hellwig <hch@lst.de> wrote: > > > On Tue, Sep 10, 2019 at 08:57:37AM +0200, Andreas Schwab wrote: > >> On Sep 10 2019, Christoph Hellwig <hch@lst.de> wrote: > >> > >> > The sifive serial driver implements earlycon support, > >> > >> It should probably be documented in admin-guide/kernel-parameters.txt. > > > > How so? Wіth OF and a stdout path you just set earlycon on the > > command line without any arguments and it will be found. > > Doesn't work for me. > > [ 0.000000] Malformed early option 'earlycon'
Try:
earlycon=sifive,0x10010000
If it works, you should see this message on the kernel console very early in the boot:
[ 0.000000] earlycon: sifive0 at MMIO 0x0000000010010000 (options '')
- Paul | |