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superio/smsc/kbc1100: Virtually rewrite support and fix mainboards

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1. Remove #include .c in romstage.
2. Make romstage component symbols linker-time.
3. Provide header guards and prototypes in superio romstage support.
4. Correct function type-signatures to be static/non-static where
appropriate, avoid 'pretend optimisations' by unnecessarily inlining
functions.
5. Separate out UART enable from various other PNP hard coding

Change-Id: I9b8dad7c02d802e97db73ddf2913d5c6bb33a419
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5916
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
This commit is contained in:
Edward O'Callaghan
2014-06-02 12:20:11 +10:00
committed by Kyösti Mälkki
parent 4ba8ba4654
commit f5bde44df2
7 changed files with 40 additions and 28 deletions
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1
src/superio/smsc/kbc1100/Makefile.inc
View File

@@ -17,4 +17,5 @@
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
romstage-$(CONFIG_SUPERIO_SMSC_KBC1100) += early_init.c
ramstage-$(CONFIG_SUPERIO_SMSC_KBC1100) += superio.c

36
src/superio/smsc/kbc1100/kbc1100_early_init.c → src/superio/smsc/kbc1100/early_init.c
View File

@@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Advanced Micro Devices, Inc.
* Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.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
@@ -20,40 +21,44 @@
/* Pre-RAM driver for the SMSC KBC1100 Super I/O chip */
#include <arch/io.h>
#include <device/pnp.h>
#include <stdint.h>
#include "kbc1100.h"
static inline void pnp_enter_conf_state(device_t dev)
static void pnp_enter_conf_state(device_t dev)
{
unsigned port = dev>>8;
outb(0x55, port);
u16 port = dev >> 8;
outb(0x55, port);
}
static void pnp_exit_conf_state(device_t dev)
{
unsigned port = dev>>8;
outb(0xaa, port);
u16 port = dev >> 8;
outb(0xaa, port);
}
static inline void kbc1100_early_init(unsigned port)
void kbc1100_early_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);
}
void kbc1100_early_init(u16 port)
{
device_t dev;
dev = PNP_DEV (port, KBC1100_KBC);
pnp_enter_conf_state(dev);
/* Serial IRQ enabled */
outb(0x25, port);
outb(0x04, port + 1);
/* Enable SMSC UART 0 */
dev = PNP_DEV (port, SMSCSUPERIO_SP1);
pnp_set_logical_device(dev);
pnp_set_enable(dev, 0);
pnp_set_iobase(dev, PNP_IDX_IO0, CONFIG_TTYS0_BASE);
pnp_set_enable(dev, 1);
/* Enable keyboard */
dev = PNP_DEV (port, KBC1100_KBC);
pnp_set_logical_device(dev);
pnp_set_enable(dev, 0);
pnp_set_iobase(dev, PNP_IDX_IO0, 0x60);
@@ -72,4 +77,3 @@ static inline void kbc1100_early_init(unsigned port)
/* disable the 1s timer */
outb(0xE7, 0x64);
}

10
src/superio/smsc/kbc1100/kbc1100.h
View File

@@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Advanced Micro Devices, Inc.
* Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.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
@@ -17,6 +18,12 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef SUPERIO_SMSC_KBC1100_H
#define SUPERIO_SMSC_KBC1100_H
#include <arch/io.h>
#include <stdint.h>
#define KBC1100_PM1 1 /* PM1 */
#define SMSCSUPERIO_SP1 4 /* Com1 */
#define SMSCSUPERIO_SP2 5 /* Com2 */
@@ -29,4 +36,7 @@
#define KBC1100_EC1 0x0D /* EC Channel 1 */
#define KBC1100_EC2 0x0E /* EC Channel 2 */
void kbc1100_early_serial(device_t dev, u16 iobase);
void kbc1100_early_init(u16 port);
#endif /* SUPERIO_SMSC_KBC1100_H */