[PATCH 1/4] tty: serial: meson: allow baud-rates higher than 115200
From: afaerber@suse.de (Andreas Färber)
Date: 2017-01-15 22:48:36
Also in:
linux-amlogic, linux-devicetree, linux-serial
Possibly related (same subject, not in this thread)
- 2017-01-18 · Re: [PATCH 1/4] tty: serial: meson: allow baud-rates higher than 115200 · Kevin Hilman <hidden>
- 2017-01-15 · [PATCH 1/4] tty: serial: meson: allow baud-rates higher than 115200 · Martin Blumenstingl <hidden>
Am 15.01.2017 um 23:32 schrieb Martin Blumenstingl:
The vendor driver allows setting baud-rates higher than 115200 baud. There is a check in the vendor driver which prevents using more than 115200 baud during startup, however it does not have such a check in .set_termios. Higher baud-rates are often used by the bluetooth modules embedded into the SDIO wifi chips (Amlogic devices use brcmfmac based wifi chips quite often, 2000000 baud seems to be a common value for the UART baud-rate in Amlogic's "libbt"). I have tested this on a Meson GXL device with uart_A (to which the bluetooth module is connected, where initialization times out with 115200 baud) and uart_AO (which I manually set to 2000000 baud and then connected with my USB UART adapter to that). Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Andreas F?rber <afaerber@suse.de> Thanks, Andreas -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 N?rnberg, Germany GF: Felix Imend?rffer, Jane Smithard, Graham Norton HRB 21284 (AG N?rnberg)