From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/mips/jz4740/serial.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 kernel/arch/mips/jz4740/serial.c (limited to 'kernel/arch/mips/jz4740/serial.c') diff --git a/kernel/arch/mips/jz4740/serial.c b/kernel/arch/mips/jz4740/serial.c new file mode 100644 index 000000000..d23de4582 --- /dev/null +++ b/kernel/arch/mips/jz4740/serial.c @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2010, Lars-Peter Clausen + * JZ4740 serial support + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include +#include +#include + +void jz4740_serial_out(struct uart_port *p, int offset, int value) +{ + switch (offset) { + case UART_FCR: + value |= 0x10; /* Enable uart module */ + break; + case UART_IER: + value |= (value & 0x4) << 2; + break; + default: + break; + } + writeb(value, p->membase + (offset << p->regshift)); +} -- cgit 1.2.3-korg