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serial: bflb_uart: add Bouffalolab UART Driver

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Add the driver for Bouffalolab UART IP which is found in Bouffalolab
SoCs such as bl808.

UART driver probe will create path named "/dev/ttySx".

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
This commit is contained in:
Jisheng Zhang 2022-11-20 16:21:09 +08:00 • committed by Allen Martin
parent d54c88d193
commit 350729c7e8
4 changed files with 681 additions and 0 deletions
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3
include/uapi/linux/serial_core.h
View file

@ -276,4 +276,7 @@
/* Sunplus UART */
#define PORT_SUNPLUS 123
/* Bouffalolab UART */
#define PORT_BFLB 124
#endif /* _UAPILINUX_SERIAL_CORE_H */