Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

51 files changed, 72100 insertions, 0 deletions

diff --git a/drivers/scsi/aic7xxx/Kconfig.aic79xx b/drivers/scsi/aic7xxx/Kconfig.aic79xx
new file mode 100644
index 000000000000..c2523a30a7f5
--- /dev/null
+++ b/drivers/scsi/aic7xxx/Kconfig.aic79xx
@@ -0,0 +1,97 @@
+#
+# AIC79XX 2.5.X Kernel configuration File.
+# $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Kconfig.aic79xx#4 $
+#
+config SCSI_AIC79XX
+	tristate "Adaptec AIC79xx U320 support"
+	depends on PCI && SCSI
+	help
+	This driver supports all of Adaptec's Ultra 320 PCI-X
+	based SCSI controllers.
+
+config AIC79XX_CMDS_PER_DEVICE
+	int "Maximum number of TCQ commands per device"
+	depends on SCSI_AIC79XX
+	default "32"
+	---help---
+	Specify the number of commands you would like to allocate per SCSI
+	device when Tagged Command Queueing (TCQ) is enabled on that device.
+
+	This is an upper bound value for the number of tagged transactions
+	to be used for any device.  The aic7xxx driver will automatically
+	vary this number based on device behavior.  For devices with a
+	fixed maximum, the driver will eventually lock to this maximum
+	and display a console message inidicating this value.
+
+	Due to resource allocation issues in the Linux SCSI mid-layer, using
+	a high number of commands per device may result in memory allocation
+	failures when many devices are attached to the system.  For this reason,
+	the default is set to 32.  Higher values may result in higer performance
+	on some devices.  The upper bound is 253.  0 disables tagged queueing.
+
+	Per device tag depth can be controlled via the kernel command line
+	"tag_info" option.  See drivers/scsi/aic7xxx/README.aic79xx
+	for details.
+
+config AIC79XX_RESET_DELAY_MS
+	int "Initial bus reset delay in milli-seconds"
+	depends on SCSI_AIC79XX
+	default "15000"
+	---help---
+	The number of milliseconds to delay after an initial bus reset.
+	The bus settle delay following all error recovery actions is
+	dictated by the SCSI layer and is not affected by this value.
+
+	Default: 15000 (15 seconds)
+
+config AIC79XX_BUILD_FIRMWARE
+	bool "Build Adapter Firmware with Kernel Build"
+	depends on SCSI_AIC79XX && !PREVENT_FIRMWARE_BUILD
+	help
+	This option should only be enabled if you are modifying the firmware
+	source to the aic79xx driver and wish to have the generated firmware
+	include files updated during a normal kernel build.  The assembler
+	for the firmware requires lex and yacc or their equivalents, as well
+	as the db v1 library.  You may have to install additional packages
+	or modify the assembler Makefile or the files it includes if your
+	build environment is different than that of the author.
+
+config AIC79XX_ENABLE_RD_STRM
+	bool "Enable Read Streaming for All Targets"
+	depends on SCSI_AIC79XX
+	default n
+	help
+	Read Streaming is a U320 protocol option that should enhance
+	performance.  Early U320 drive firmware actually performs slower
+	with read streaming enabled so it is disabled by default.  Read
+	Streaming can be configured in much the same way as tagged queueing
+	using the "rd_strm" command line option.  See
+	drivers/scsi/aic7xxx/README.aic79xx for details.
+
+config AIC79XX_DEBUG_ENABLE
+	bool "Compile in Debugging Code"
+	depends on SCSI_AIC79XX
+	default y
+	help
+	Compile in aic79xx debugging code that can be useful in diagnosing
+	driver errors.
+
+config AIC79XX_DEBUG_MASK
+	int "Debug code enable mask (16383 for all debugging)"
+	depends on SCSI_AIC79XX
+	default "0"
+	help
+	Bit mask of debug options that is only valid if the
+	CONFIG_AIC79XX_DEBUG_ENBLE option is enabled.  The bits in this mask
+	are defined in the drivers/scsi/aic7xxx/aic79xx.h - search for the
+	variable ahd_debug in that file to find them.
+
+config AIC79XX_REG_PRETTY_PRINT
+	bool "Decode registers during diagnostics"
+	depends on SCSI_AIC79XX
+	default y
+	help
+	Compile in register value tables for the output of expanded register
+	contents in diagnostics.  This make it much easier to understand debug
+	output without having to refer to a data book and/or the aic7xxx.reg
+	file.
diff --git a/drivers/scsi/aic7xxx/Kconfig.aic7xxx b/drivers/scsi/aic7xxx/Kconfig.aic7xxx
new file mode 100644
index 000000000000..8398e0dd4810
--- /dev/null
+++ b/drivers/scsi/aic7xxx/Kconfig.aic7xxx
@@ -0,0 +1,100 @@
+#
+# AIC7XXX and AIC79XX 2.5.X Kernel configuration File.
+# $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Kconfig.aic7xxx#7 $
+#
+config SCSI_AIC7XXX
+	tristate "Adaptec AIC7xxx Fast -> U160 support (New Driver)"
+	depends on (PCI || EISA) && SCSI
+	---help---
+	This driver supports all of Adaptec's Fast through Ultra 160 PCI
+	based SCSI controllers as well as the aic7770 based EISA and VLB
+	SCSI controllers (the 274x and 284x series).  For AAA and ARO based
+	configurations, only SCSI functionality is provided.
+
+	To compile this driver as a module, choose M here: the
+	module will be called aic7xxx.
+
+config AIC7XXX_CMDS_PER_DEVICE
+	int "Maximum number of TCQ commands per device"
+	depends on SCSI_AIC7XXX
+	default "32"
+	---help---
+	Specify the number of commands you would like to allocate per SCSI
+	device when Tagged Command Queueing (TCQ) is enabled on that device.
+
+	This is an upper bound value for the number of tagged transactions
+	to be used for any device.  The aic7xxx driver will automatically
+	vary this number based on device behavior.  For devices with a
+	fixed maximum, the driver will eventually lock to this maximum
+	and display a console message inidicating this value.
+
+	Due to resource allocation issues in the Linux SCSI mid-layer, using
+	a high number of commands per device may result in memory allocation
+	failures when many devices are attached to the system.  For this reason,
+	the default is set to 32.  Higher values may result in higer performance
+	on some devices.  The upper bound is 253.  0 disables tagged queueing.
+
+	Per device tag depth can be controlled via the kernel command line
+	"tag_info" option.  See drivers/scsi/aic7xxx/README.aic7xxx
+	for details.
+
+config AIC7XXX_RESET_DELAY_MS
+	int "Initial bus reset delay in milli-seconds"
+	depends on SCSI_AIC7XXX
+	default "15000"
+	---help---
+	The number of milliseconds to delay after an initial bus reset.
+	The bus settle delay following all error recovery actions is
+	dictated by the SCSI layer and is not affected by this value.
+
+	Default: 15000 (15 seconds)
+
+config AIC7XXX_PROBE_EISA_VL
+	bool "Probe for EISA and VL AIC7XXX Adapters"
+	depends on SCSI_AIC7XXX && EISA
+	help
+	Probe for EISA and VLB Aic7xxx controllers.  In many newer systems,
+	the invasive probes necessary to detect these controllers can cause
+	other devices to fail.  For this reason, the non-PCI probe code is
+	disabled by default.  The current value of this option can be "toggled"
+	via the no_probe kernel command line option.
+
+config AIC7XXX_BUILD_FIRMWARE
+	bool "Build Adapter Firmware with Kernel Build"
+	depends on SCSI_AIC7XXX && !PREVENT_FIRMWARE_BUILD
+	help
+	This option should only be enabled if you are modifying the firmware
+	source to the aic7xxx driver and wish to have the generated firmware
+	include files updated during a normal kernel build.  The assembler
+	for the firmware requires lex and yacc or their equivalents, as well
+	as the db v1 library.  You may have to install additional packages
+	or modify the assembler Makefile or the files it includes if your
+	build environment is different than that of the author.
+
+config AIC7XXX_DEBUG_ENABLE
+	bool "Compile in Debugging Code"
+	depends on SCSI_AIC7XXX
+	default y
+	help
+	Compile in aic7xxx debugging code that can be useful in diagnosing
+	driver errors.
+
+config AIC7XXX_DEBUG_MASK
+        int "Debug code enable mask (2047 for all debugging)"
+        depends on SCSI_AIC7XXX
+        default "0"
+        help
+	Bit mask of debug options that is only valid if the
+	CONFIG_AIC7XXX_DEBUG_ENBLE option is enabled.  The bits in this mask
+	are defined in the drivers/scsi/aic7xxx/aic7xxx.h - search for the
+	variable ahc_debug in that file to find them.
+
+config AIC7XXX_REG_PRETTY_PRINT
+        bool "Decode registers during diagnostics"
+        depends on SCSI_AIC7XXX
+	default y
+        help
+	Compile in register value tables for the output of expanded register
+	contents in diagnostics.  This make it much easier to understand debug
+	output without having to refer to a data book and/or the aic7xxx.reg
+	file.
diff --git a/drivers/scsi/aic7xxx/Makefile b/drivers/scsi/aic7xxx/Makefile
new file mode 100644
index 000000000000..9a6ce19a4030
--- /dev/null
+++ b/drivers/scsi/aic7xxx/Makefile
@@ -0,0 +1,99 @@
+#
+# Makefile for the Linux aic7xxx SCSI driver.
+#
+# $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Makefile#8 $
+#
+
+# Let kbuild descend into aicasm when cleaning
+subdir-				+= aicasm
+
+obj-$(CONFIG_SCSI_AIC7XXX)	+= aic7xxx.o
+obj-$(CONFIG_SCSI_AIC79XX)	+= aic79xx.o
+
+# Core Fast -> U160 files
+aic7xxx-y					+= aic7xxx_core.o	\
+						   aic7xxx_93cx6.o
+aic7xxx-$(CONFIG_EISA)				+= aic7770.o
+aic7xxx-$(CONFIG_PCI)				+= aic7xxx_pci.o
+aic7xxx-$(CONFIG_AIC7XXX_REG_PRETTY_PRINT)	+= aic7xxx_reg_print.o
+
+# Platform Specific Fast -> U160 Files
+aic7xxx-y					+= aic7xxx_osm.o	\
+						   aic7xxx_proc.o
+aic7xxx-$(CONFIG_EISA)				+= aic7770_osm.o
+aic7xxx-$(CONFIG_PCI)				+= aic7xxx_osm_pci.o
+
+# Core U320 files
+aic79xx-y					+= aic79xx_core.o	\
+						   aic79xx_pci.o
+aic79xx-$(CONFIG_AIC79XX_REG_PRETTY_PRINT)	+= aic79xx_reg_print.o
+
+# Platform Specific U320 Files
+aic79xx-y					+= aic79xx_osm.o	\
+						   aic79xx_proc.o	\
+						   aic79xx_osm_pci.o
+
+EXTRA_CFLAGS += -Idrivers/scsi
+ifdef WARNINGS_BECOME_ERRORS
+EXTRA_CFLAGS += -Werror
+endif
+#EXTRA_CFLAGS += -g
+
+# Files generated that shall be removed upon make clean
+clean-files := aic7xxx_seq.h aic7xxx_reg.h aic7xxx_reg_print.c
+clean-files += aic79xx_seq.h aic79xx_reg.h aic79xx_reg_print.c
+
+# Dependencies for generated files need to be listed explicitly
+
+$(obj)/aic7xxx_core.o: $(obj)/aic7xxx_seq.h
+$(obj)/aic79xx_core.o: $(obj)/aic79xx_seq.h
+$(obj)/aic79xx_reg_print.c: $(src)/aic79xx_reg_print.c_shipped
+$(obj)/aic7xxx_reg_print.c: $(src)/aic7xxx_reg_print.c_shipped
+
+$(addprefix $(obj)/,$(aic7xxx-y)): $(obj)/aic7xxx_reg.h
+$(addprefix $(obj)/,$(aic79xx-y)): $(obj)/aic79xx_reg.h
+
+aic7xxx-gen-$(CONFIG_AIC7XXX_BUILD_FIRMWARE)	:= $(obj)/aic7xxx_seq.h \
+						   $(obj)/aic7xxx_reg.h
+aic7xxx-gen-$(CONFIG_AIC7XXX_REG_PRETTY_PRINT)	+= $(obj)/aic7xxx_reg_print.c
+
+aicasm-7xxx-opts-$(CONFIG_AIC7XXX_REG_PRETTY_PRINT) := \
+	-p $(obj)/aic7xxx_reg_print.c -i aic7xxx_osm.h
+
+ifeq ($(CONFIG_AIC7XXX_BUILD_FIRMWARE),y)
+# Create a dependency chain in generated files
+# to avoid concurrent invocations of the single
+# rule that builds them all.
+aic7xxx_seq.h: aic7xxx_reg.h
+ifeq ($(CONFIG_AIC7XXX_REG_PRETTY_PRINT),y)
+aic7xxx_reg.h: aic7xxx_reg_print.c
+endif
+$(aic7xxx-gen-y): $(src)/aic7xxx.seq $(src)/aic7xxx.reg $(obj)/aicasm/aicasm
+	$(obj)/aicasm/aicasm -I$(src) -r $(obj)/aic7xxx_reg.h \
+			      $(aicasm-7xxx-opts-y) -o $(obj)/aic7xxx_seq.h \
+			      $(src)/aic7xxx.seq
+endif
+
+aic79xx-gen-$(CONFIG_AIC79XX_BUILD_FIRMWARE)	:= $(obj)/aic79xx_seq.h \
+						   $(obj)/aic79xx_reg.h
+aic79xx-gen-$(CONFIG_AIC79XX_REG_PRETTY_PRINT)	+= $(obj)/aic79xx_reg_print.c
+
+aicasm-79xx-opts-$(CONFIG_AIC79XX_REG_PRETTY_PRINT) := \
+	-p $(obj)/aic79xx_reg_print.c -i aic79xx_osm.h
+
+ifeq ($(CONFIG_AIC79XX_BUILD_FIRMWARE),y)
+# Create a dependency chain in generated files
+# to avoid concurrent invocations of the single
+# rule that builds them all.
+aic79xx_seq.h: aic79xx_reg.h
+ifeq ($(CONFIG_AIC79XX_REG_PRETTY_PRINT),y)
+aic79xx_reg.h: aic79xx_reg_print.c
+endif
+$(aic79xx-gen-y): $(src)/aic79xx.seq $(src)/aic79xx.reg $(obj)/aicasm/aicasm
+	$(obj)/aicasm/aicasm -I$(src) -r $(obj)/aic79xx_reg.h \
+			      $(aicasm-79xx-opts-y) -o $(obj)/aic79xx_seq.h \
+			      $(src)/aic79xx.seq
+endif
+
+$(obj)/aicasm/aicasm: $(src)/aicasm/*.[chyl]
+	$(MAKE) -C $(src)/aicasm
diff --git a/drivers/scsi/aic7xxx/aic7770.c b/drivers/scsi/aic7xxx/aic7770.c
new file mode 100644
index 000000000000..92703bb35982
--- /dev/null
+++ b/drivers/scsi/aic7xxx/aic7770.c
@@ -0,0 +1,415 @@
+/*
+ * Product specific probe and attach routines for:
+ * 	27/284X and aic7770 motherboard SCSI controllers
+ *
+ * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ *
+ * $Id: //depot/aic7xxx/aic7xxx/aic7770.c#32 $
+ *
+ * $FreeBSD$
+ */
+
+#ifdef __linux__
+#include "aic7xxx_osm.h"
+#include "aic7xxx_inline.h"
+#include "aic7xxx_93cx6.h"
+#else
+#include <dev/aic7xxx/aic7xxx_osm.h>
+#include <dev/aic7xxx/aic7xxx_inline.h>
+#include <dev/aic7xxx/aic7xxx_93cx6.h>
+#endif
+
+#define ID_AIC7770	0x04907770
+#define ID_AHA_274x	0x04907771
+#define ID_AHA_284xB	0x04907756 /* BIOS enabled */
+#define ID_AHA_284x	0x04907757 /* BIOS disabled*/
+#define	ID_OLV_274x	0x04907782 /* Olivetti OEM */
+#define	ID_OLV_274xD	0x04907783 /* Olivetti OEM (Differential) */
+
+static int aic7770_chip_init(struct ahc_softc *ahc);
+static int aic7770_suspend(struct ahc_softc *ahc);
+static int aic7770_resume(struct ahc_softc *ahc);
+static int aha2840_load_seeprom(struct ahc_softc *ahc);
+static ahc_device_setup_t ahc_aic7770_VL_setup;
+static ahc_device_setup_t ahc_aic7770_EISA_setup;
+static ahc_device_setup_t ahc_aic7770_setup;
+
+struct aic7770_identity aic7770_ident_table[] =
+{
+	{
+		ID_AHA_274x,
+		0xFFFFFFFF,
+		"Adaptec 274X SCSI adapter",
+		ahc_aic7770_EISA_setup
+	},
+	{
+		ID_AHA_284xB,
+		0xFFFFFFFE,
+		"Adaptec 284X SCSI adapter",
+		ahc_aic7770_VL_setup
+	},
+	{
+		ID_AHA_284x,
+		0xFFFFFFFE,
+		"Adaptec 284X SCSI adapter (BIOS Disabled)",
+		ahc_aic7770_VL_setup
+	},
+	{
+		ID_OLV_274x,
+		0xFFFFFFFF,
+		"Adaptec (Olivetti OEM) 274X SCSI adapter",
+		ahc_aic7770_EISA_setup
+	},
+	{
+		ID_OLV_274xD,
+		0xFFFFFFFF,
+		"Adaptec (Olivetti OEM) 274X Differential SCSI adapter",
+		ahc_aic7770_EISA_setup
+	},
+	/* Generic chip probes for devices we don't know 'exactly' */
+	{
+		ID_AIC7770,
+		0xFFFFFFFF,
+		"Adaptec aic7770 SCSI adapter",
+		ahc_aic7770_EISA_setup
+	}
+};
+const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table);
+
+struct aic7770_identity *
+aic7770_find_device(uint32_t id)
+{
+	struct	aic7770_identity *entry;
+	int	i;
+
+	for (i = 0; i < ahc_num_aic7770_devs; i++) {
+		entry = &aic7770_ident_table[i];
+		if (entry->full_id == (id & entry->id_mask))
+			return (entry);
+	}
+	return (NULL);
+}
+
+int
+aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
+{
+	u_long	l;
+	int	error;
+	int	have_seeprom;
+	u_int	hostconf;
+	u_int   irq;
+	u_int	intdef;
+
+	error = entry->setup(ahc);
+	have_seeprom = 0;
+	if (error != 0)
+		return (error);
+
+	error = aic7770_map_registers(ahc, io);
+	if (error != 0)
+		return (error);
+
+	/*
+	 * Before we continue probing the card, ensure that
+	 * its interrupts are *disabled*.  We don't want
+	 * a misstep to hang the machine in an interrupt
+	 * storm.
+	 */
+	ahc_intr_enable(ahc, FALSE);
+
+	ahc->description = entry->name;
+	error = ahc_softc_init(ahc);
+	if (error != 0)
+		return (error);
+
+	ahc->bus_chip_init = aic7770_chip_init;
+	ahc->bus_suspend = aic7770_suspend;
+	ahc->bus_resume = aic7770_resume;
+
+	error = ahc_reset(ahc, /*reinit*/FALSE);
+	if (error != 0)
+		return (error);
+
+	/* Make sure we have a valid interrupt vector */
+	intdef = ahc_inb(ahc, INTDEF);
+	irq = intdef & VECTOR;
+	switch (irq) {
+	case 9:
+	case 10:
+	case 11:
+	case 12:
+	case 14:
+	case 15:
+		break;
+	default:
+		printf("aic7770_config: invalid irq setting %d\n", intdef);
+		return (ENXIO);
+	}
+
+	if ((intdef & EDGE_TRIG) != 0)
+		ahc->flags |= AHC_EDGE_INTERRUPT;
+
+	switch (ahc->chip & (AHC_EISA|AHC_VL)) {
+	case AHC_EISA:
+	{
+		u_int biosctrl;
+		u_int scsiconf;
+		u_int scsiconf1;
+
+		biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
+		scsiconf = ahc_inb(ahc, SCSICONF);
+		scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
+
+		/* Get the primary channel information */
+		if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
+			ahc->flags |= 1;
+
+		if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
+			ahc->flags |= AHC_USEDEFAULTS;
+		} else {
+			if ((ahc->features & AHC_WIDE) != 0) {
+				ahc->our_id = scsiconf1 & HWSCSIID;
+				if (scsiconf & TERM_ENB)
+					ahc->flags |= AHC_TERM_ENB_A;
+			} else {
+				ahc->our_id = scsiconf & HSCSIID;
+				ahc->our_id_b = scsiconf1 & HSCSIID;
+				if (scsiconf & TERM_ENB)
+					ahc->flags |= AHC_TERM_ENB_A;
+				if (scsiconf1 & TERM_ENB)
+					ahc->flags |= AHC_TERM_ENB_B;
+			}
+		}
+		if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
+			ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
+		break;
+	}
+	case AHC_VL:
+	{
+		have_seeprom = aha2840_load_seeprom(ahc);
+		break;
+	}
+	default:
+		break;
+	}
+	if (have_seeprom == 0) {
+		free(ahc->seep_config, M_DEVBUF);
+		ahc->seep_config = NULL;
+	}
+
+	/*
+	 * Ensure autoflush is enabled
+	 */
+	ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
+
+	/* Setup the FIFO threshold and the bus off time */
+	hostconf = ahc_inb(ahc, HOSTCONF);
+	ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
+	ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
+
+	ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;
+	ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;
+
+	/*
+	 * Generic aic7xxx initialization.
+	 */
+	error = ahc_init(ahc);
+	if (error != 0)
+		return (error);
+
+	error = aic7770_map_int(ahc, irq);
+	if (error != 0)
+		return (error);
+
+	ahc_list_lock(&l);
+	/*
+	 * Link this softc in with all other ahc instances.
+	 */
+	ahc_softc_insert(ahc);
+
+	/*
+	 * Enable the board's BUS drivers
+	 */
+	ahc_outb(ahc, BCTL, ENABLE);
+
+	ahc_list_unlock(&l);
+
+	return (0);
+}
+
+static int
+aic7770_chip_init(struct ahc_softc *ahc)
+{
+	ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd);
+	ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime);
+	ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
+	ahc_outb(ahc, BCTL, ENABLE);
+	return (ahc_chip_init(ahc));
+}
+
+static int
+aic7770_suspend(struct ahc_softc *ahc)
+{
+	return (ahc_suspend(ahc));
+}
+
+static int
+aic7770_resume(struct ahc_softc *ahc)
+{
+	return (ahc_resume(ahc));
+}
+
+/*
+ * Read the 284x SEEPROM.
+ */
+static int
+aha2840_load_seeprom(struct ahc_softc *ahc)
+{
+	struct	seeprom_descriptor sd;
+	struct	seeprom_config *sc;
+	int	have_seeprom;
+	uint8_t scsi_conf;
+
+	sd.sd_ahc = ahc;
+	sd.sd_control_offset = SEECTL_2840;
+	sd.sd_status_offset = STATUS_2840;
+	sd.sd_dataout_offset = STATUS_2840;		
+	sd.sd_chip = C46;
+	sd.sd_MS = 0;
+	sd.sd_RDY = EEPROM_TF;
+	sd.sd_CS = CS_2840;
+	sd.sd_CK = CK_2840;
+	sd.sd_DO = DO_2840;
+	sd.sd_DI = DI_2840;
+	sc = ahc->seep_config;
+
+	if (bootverbose)
+		printf("%s: Reading SEEPROM...", ahc_name(ahc));
+	have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
+					/*start_addr*/0, sizeof(*sc)/2);
+
+	if (have_seeprom) {
+
+		if (ahc_verify_cksum(sc) == 0) {
+			if(bootverbose)
+				printf ("checksum error\n");
+			have_seeprom = 0;
+		} else if (bootverbose) {
+			printf("done.\n");
+		}
+	}
+
+	if (!have_seeprom) {
+		if (bootverbose)
+			printf("%s: No SEEPROM available\n", ahc_name(ahc));
+		ahc->flags |= AHC_USEDEFAULTS;
+	} else {
+		/*
+		 * Put the data we've collected down into SRAM
+		 * where ahc_init will find it.
+		 */
+		int	 i;
+		int	 max_targ;
+		uint16_t discenable;
+
+		max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
+		discenable = 0;
+		for (i = 0; i < max_targ; i++){
+			uint8_t target_settings;
+
+			target_settings = (sc->device_flags[i] & CFXFER) << 4;
+			if (sc->device_flags[i] & CFSYNCH)
+				target_settings |= SOFS;
+			if (sc->device_flags[i] & CFWIDEB)
+				target_settings |= WIDEXFER;
+			if (sc->device_flags[i] & CFDISC)
+				discenable |= (0x01 << i);
+			ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
+		}
+		ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
+		ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));