On Mon, Sep 24, 2018 at 12:34:45AM +0200, Rafał Miłecki wrote:
From: Michal Simek michal.simek@xilinx.com
commit 814453adea7d081ad8917aa0f32d6a14165a3563 upstream.
On DT based platforms when current-speed property is present baudrate is setup. Also port->uartclk is initialized to bogus BASE_BAUD * 16 value. Drivers like uartps/ns16550 contain logic when baudrate and uartclk is used for baudrate calculation.
The patch is reading optional clock-frequency property to replace bogus BASE_BAUD * 16 calculation to have proper baudrate calculation.
[-stable comment: commit 31cb9a8575ca ("earlycon: initialise baud field of earlycon device structure") has changed 8250_early.c behavior which now tries to setup UART speed. Ignoring clock-frequency results in wrong value of calculated divisor & malformed early console output.]
Thanks for both of these, now queued up.
greg k-h