diff options
author | Edward O'Callaghan <eocallaghan@alterapraxis.com> | 2014-04-23 21:52:25 +1000 |
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committer | Patrick Georgi <patrick@georgi-clan.de> | 2014-04-26 18:22:11 +0200 |
commit | cf7b4989083cb3fd1adf34dc5e07d4ac253e8f85 (patch) | |
tree | 47aba25be42b14b74d97bb68e9e1a4df3f986ca0 /src/superio/fintek/f71805f/early_serial.c | |
parent | 4566d2e7cd32c1c2bdcc85a09c580e9f00f6b1dd (diff) |
superio/fintek/*: Factor out generic romstage component
The romstage of Fintek Super I/O's is identical, leading to replication
of essentially the same code prone to bitrot. Herein we consolidate the
early pre-ram UART initialisation code into fintek/common, rather we
leave the exceptions to be implemented under model/.
More precisely we provide a well documented version of early_serial.c
under fintek/common and select by way of Kconfig as a generic romstage
component to Super I/O support. We leave future Super I/O's the option
to implement `non-standard` initialisation code should such a (unlikely)
need araise. A primary advantage is that new support for romstage serial
is now trival to add. We also provide some Kconfig documentation while
here.
Change-Id: I3c62561558a62ece944a167ba302fb7076bba001
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5575
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/superio/fintek/f71805f/early_serial.c')
-rw-r--r-- | src/superio/fintek/f71805f/early_serial.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/src/superio/fintek/f71805f/early_serial.c b/src/superio/fintek/f71805f/early_serial.c deleted file mode 100644 index b823a430e5..0000000000 --- a/src/superio/fintek/f71805f/early_serial.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007 Corey Osgood <corey@slightlyhackish.com> - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/* Pre-RAM driver for the Fintek F71805F/FG Super I/O chip. */ - -#include <arch/io.h> -#include <device/pnp.h> -#include "f71805f.h" - -static void pnp_enter_conf_state(device_t dev) -{ - u16 port = dev >> 8; - outb(0x87, port); - outb(0x87, port); -} - -static void pnp_exit_conf_state(device_t dev) -{ - u16 port = dev >> 8; - outb(0xaa, port); -} - -void f71805f_enable_serial(device_t dev, u16 iobase) -{ - pnp_enter_conf_state(dev); - pnp_set_logical_device(dev); - pnp_set_enable(dev, 0); - pnp_set_iobase(dev, PNP_IDX_IO0, iobase); - pnp_set_enable(dev, 1); - pnp_exit_conf_state(dev); -} |