Hi Alex,
On 17 January 2018 at 00:54, Alexander Graf agraf@suse.de wrote:
The serial devices on the raspberry pi are based on clocks we can't easily read and influence in U-Boot. However, the serial devices are always already properly set up when coming up, so all we need to do is leave them alone.
The way to do that is to specify "skip-init" in device tree usually, but if we set CONFIG_OF_BOARD to get the device tree from the RPi firmware, that does not have skip-init properly set.
So instead we just force it in board specific code. That way serial devices also work fine when skip-init is not passed explicitly in DT.
Signed-off-by: Alexander Graf agraf@suse.de
board/raspberrypi/rpi/rpi.c | 7 +++++++ drivers/serial/serial_bcm283x_mu.c | 2 +- drivers/serial/serial_pl01x.c | 2 +- 3 files changed, 9 insertions(+), 2 deletions(-)
Would you mind converting these drivers to livetree before adding these patches?
Regards, Simon