On Mon, Dec 17, 2018 at 09:10:40AM +0100, Rouven Czerwinski wrote: > The miniuart uses the core clock as the clock source. This clock is fixed by the > firmware to 250Mhz if enable_uart=1 is set in the config.txt file. > However a user could still choose to overclock the core frequency, > which would result in wrong baudrates computed by barebox. > Retrieve the core clock frequency from the firmware to allow all potential > firmware configurations to work with barebox. > > Signed-off-by: Rouven Czerwinski <r.czerwinski@xxxxxxxxxxxxxx> > --- > arch/arm/boards/raspberry-pi/rpi-common.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/arm/boards/raspberry-pi/rpi-common.c b/arch/arm/boards/raspberry-pi/rpi-common.c > index 490aeef..e29177d 100644 > --- a/arch/arm/boards/raspberry-pi/rpi-common.c > +++ b/arch/arm/boards/raspberry-pi/rpi-common.c > @@ -309,6 +309,13 @@ static int rpi_console_clock_init(void) > clkdev_add_physbase(clk, 0x20201000, NULL); > clkdev_add_physbase(clk, 0x3f201000, NULL); > > + clk = rpi_register_firmware_clock(BCM2835_MBOX_CLOCK_ID_CORE, > + "uart1-8250"); We don't have this function anywhere in the tree, this breaks compilation. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
