From a2927e09bccca5b665709d77fc54919292d4bcb7 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Fri, 12 Dec 2014 21:05:25 +0800 Subject: x86: Add a simple superio driver for SMSC LPC47M On most x86 boards, the legacy serial ports (io address 0x3f8/0x2f8) are provided by a superio chip connected to the LPC bus. We must program the superio chip so that serial ports are available for us. Signed-off-by: Bin Meng Acked-by: Simon Glass --- include/smsc_lpc47m.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 include/smsc_lpc47m.h (limited to 'include/smsc_lpc47m.h') diff --git a/include/smsc_lpc47m.h b/include/smsc_lpc47m.h new file mode 100644 index 0000000000..bffd622f0f --- /dev/null +++ b/include/smsc_lpc47m.h @@ -0,0 +1,19 @@ +/* + * Copyright (C) 2014, Bin Meng + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _SMSC_LPC47M_H_ +#define _SMSC_LPC47M_H_ + +/** + * Configure the base I/O port of the specified serial device and enable the + * serial device. + * + * @dev: High 8 bits = Super I/O port, low 8 bits = logical device number. + * @iobase: Processor I/O port address to assign to this serial device. + */ +void lpc47m_enable_serial(u16 dev, u16 iobase); + +#endif /* _SMSC_LPC47M_H_ */ -- cgit