[MIPS] Add back support for LASAT platforms

Signed-off-by: Brian Murphy <brian@murphy.dk>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -107,6 +107,20 @@ config MACH_JAZZ
 	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
 	 Olivetti M700-10 workstations.
 
+config LASAT
+	bool "LASAT Networks platforms"
+	select DMA_NONCOHERENT
+	select SYS_HAS_EARLY_PRINTK
+	select HW_HAS_PCI
+	select PCI_GT64XXX_PCI0
+	select MIPS_NILE4
+	select R5000_CPU_SCACHE
+	select SYS_HAS_CPU_R5000
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select GENERIC_HARDIRQS_NO__DO_IRQ
+
 config LEMOTE_FULONG
 	bool "Lemote Fulong mini-PC"
 	select ARCH_SPARSEMEM_ENABLE
@@ -599,6 +613,7 @@ endchoice
 
 source "arch/mips/au1000/Kconfig"
 source "arch/mips/jazz/Kconfig"
+source "arch/mips/lasat/Kconfig"
 source "arch/mips/pmc-sierra/Kconfig"
 source "arch/mips/sgi-ip27/Kconfig"
 source "arch/mips/sibyte/Kconfig"
@@ -706,6 +721,9 @@ config MIPS_BONITO64
 config MIPS_MSC
 	bool
 
+config MIPS_NILE4
+	bool
+
 config MIPS_DISABLE_OBSOLETE_IDE
 	bool
 

arch/mips/Makefile

@@ -361,6 +361,13 @@ core-$(CONFIG_BASLER_EXCITE)	+= arch/mips/basler/excite/
 cflags-$(CONFIG_BASLER_EXCITE)	+= -Iinclude/asm-mips/mach-excite
 load-$(CONFIG_BASLER_EXCITE)	+= 0x80100000
 
+#
+# LASAT platforms
+#
+core-$(CONFIG_LASAT)		+= arch/mips/lasat/
+cflags-$(CONFIG_LASAT)		+= -Iinclude/asm-mips/mach-lasat
+load-$(CONFIG_LASAT)		+= 0xffffffff80000000
+
 #
 # Common VR41xx
 #
@@ -628,6 +635,11 @@ core-y			+= arch/mips/kernel/ arch/mips/mm/ arch/mips/math-emu/
 
 drivers-$(CONFIG_OPROFILE)	+= arch/mips/oprofile/
 
+ifdef CONFIG_LASAT
+rom.bin rom.sw: vmlinux
+	$(Q)$(MAKE) $(build)=arch/mips/lasat/image $@
+endif
+
 #
 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
@@ -671,6 +683,7 @@ endif
 
 archclean:
 	@$(MAKE) $(clean)=arch/mips/boot
+	@$(MAKE) $(clean)=arch/mips/lasat
 
 define archhelp
 	echo '  vmlinux.ecoff        - ECOFF boot image'

arch/mips/lasat/Kconfig

+config PICVUE
+	tristate "PICVUE LCD display driver"
+	depends on LASAT
+
+config PICVUE_PROC
+	tristate "PICVUE LCD display driver /proc interface"
+	depends on PICVUE
+
+config DS1603
+	bool "DS1603 RTC driver"
+	depends on LASAT
+
+config LASAT_SYSCTL
+	bool "LASAT sysctl interface"
+	depends on LASAT

arch/mips/lasat/Makefile

+#
+# Makefile for the LASAT specific kernel interface routines under Linux.
+#
+
+obj-y	 			+= reset.o setup.o prom.o lasat_board.o \
+				   at93c.o interrupt.o serial.o
+
+obj-$(CONFIG_LASAT_SYSCTL)	+= sysctl.o
+obj-$(CONFIG_DS1603)		+= ds1603.o
+obj-$(CONFIG_PICVUE)		+= picvue.o
+obj-$(CONFIG_PICVUE_PROC)	+= picvue_proc.o
+
+clean:
+	make -C image clean
+
+EXTRA_CFLAGS += -Werror

arch/mips/lasat/at93c.c

+/*
+ * Atmel AT93C46 serial eeprom driver
+ *
+ * Brian Murphy <brian.murphy@eicon.com>
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <asm/lasat/lasat.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include "at93c.h"
+
+#define AT93C_ADDR_SHIFT	7
+#define AT93C_ADDR_MAX		((1 << AT93C_ADDR_SHIFT) - 1)
+#define AT93C_RCMD		(0x6 << AT93C_ADDR_SHIFT)
+#define AT93C_WCMD		(0x5 << AT93C_ADDR_SHIFT)
+#define AT93C_WENCMD		0x260
+#define AT93C_WDSCMD		0x200
+
+struct at93c_defs *at93c;
+
+static void at93c_reg_write(u32 val)
+{
+	*at93c->reg = val;
+}
+
+static u32 at93c_reg_read(void)
+{
+	u32 tmp = *at93c->reg;
+	return tmp;
+}
+
+static u32 at93c_datareg_read(void)
+{
+	u32 tmp = *at93c->rdata_reg;
+	return tmp;
+}
+
+static void at93c_cycle_clk(u32 data)
+{
+	at93c_reg_write(data | at93c->clk);
+	lasat_ndelay(250);
+	at93c_reg_write(data & ~at93c->clk);
+	lasat_ndelay(250);
+}
+
+static void at93c_write_databit(u8 bit)
+{
+	u32 data = at93c_reg_read();
+	if (bit)
+		data |= 1 << at93c->wdata_shift;
+	else
+		data &= ~(1 << at93c->wdata_shift);
+
+	at93c_reg_write(data);
+	lasat_ndelay(100);
+	at93c_cycle_clk(data);
+}
+
+static unsigned int at93c_read_databit(void)
+{
+	u32 data;
+
+	at93c_cycle_clk(at93c_reg_read());
+	data = (at93c_datareg_read() >> at93c->rdata_shift) & 1;
+	return data;
+}
+
+static u8 at93c_read_byte(void)
+{
+	int i;
+	u8 data = 0;
+
+	for (i = 0; i <= 7; i++) {
+		data <<= 1;
+		data |= at93c_read_databit();
+	}
+	return data;
+}
+
+static void at93c_write_bits(u32 data, int size)
+{
+	int i;
+	int shift = size - 1;
+	u32 mask = (1 << shift);
+
+	for (i = 0; i < size; i++) {
+		at93c_write_databit((data & mask) >> shift);
+		data <<= 1;
+	}
+}
+
+static void at93c_init_op(void)
+{
+	at93c_reg_write((at93c_reg_read() | at93c->cs) &
+			~at93c->clk & ~(1 << at93c->rdata_shift));
+	lasat_ndelay(50);
+}
+
+static void at93c_end_op(void)
+{
+	at93c_reg_write(at93c_reg_read() & ~at93c->cs);
+	lasat_ndelay(250);
+}
+
+static void at93c_wait(void)
+{
+	at93c_init_op();
+	while (!at93c_read_databit())
+		;
+	at93c_end_op();
+};
+
+static void at93c_disable_wp(void)
+{
+	at93c_init_op();
+	at93c_write_bits(AT93C_WENCMD, 10);
+	at93c_end_op();
+}
+
+static void at93c_enable_wp(void)
+{
+	at93c_init_op();
+	at93c_write_bits(AT93C_WDSCMD, 10);
+	at93c_end_op();
+}
+
+u8 at93c_read(u8 addr)
+{
+	u8 byte;
+	at93c_init_op();
+	at93c_write_bits((addr & AT93C_ADDR_MAX)|AT93C_RCMD, 10);
+	byte = at93c_read_byte();
+	at93c_end_op();
+	return byte;
+}
+
+void at93c_write(u8 addr, u8 data)
+{
+	at93c_disable_wp();
+	at93c_init_op();
+	at93c_write_bits((addr & AT93C_ADDR_MAX)|AT93C_WCMD, 10);
+	at93c_write_bits(data, 8);
+	at93c_end_op();
+	at93c_wait();
+	at93c_enable_wp();
+}

arch/mips/lasat/at93c.h

+/*
+ * Atmel AT93C46 serial eeprom driver
+ *
+ * Brian Murphy <brian.murphy@eicon.com>
+ *
+ */
+
+extern struct at93c_defs {
+	volatile u32 *reg;
+	volatile u32 *rdata_reg;
+	int rdata_shift;
+	int wdata_shift;
+	u32 cs;
+	u32 clk;
+} *at93c;
+
+u8 at93c_read(u8 addr);
+void at93c_write(u8 addr, u8 data);

arch/mips/lasat/ds1603.c

+/*
+ * Dallas Semiconductors 1603 RTC driver
+ *
+ * Brian Murphy <brian@murphy.dk>
+ *
+ */
+#include <linux/kernel.h>
+#include <asm/lasat/lasat.h>
+#include <linux/delay.h>
+#include <asm/lasat/ds1603.h>
+#include <asm/time.h>
+
+#include "ds1603.h"
+
+#define READ_TIME_CMD 0x81
+#define SET_TIME_CMD 0x80
+#define TRIMMER_SET_CMD 0xC0
+#define TRIMMER_VALUE_MASK 0x38
+#define TRIMMER_SHIFT 3
+
+struct ds_defs *ds1603;
+
+/* HW specific register functions */
+static void rtc_reg_write(unsigned long val)
+{
+	*ds1603->reg = val;
+}
+
+static unsigned long rtc_reg_read(void)
+{
+	unsigned long tmp = *ds1603->reg;
+	return tmp;
+}
+
+static unsigned long rtc_datareg_read(void)
+{
+	unsigned long tmp = *ds1603->data_reg;
+	return tmp;
+}
+
+static void rtc_nrst_high(void)
+{
+	rtc_reg_write(rtc_reg_read() | ds1603->rst);
+}
+
+static void rtc_nrst_low(void)
+{
+	rtc_reg_write(rtc_reg_read() & ~ds1603->rst);
+}
+
+static void rtc_cycle_clock(unsigned long data)
+{
+	data |= ds1603->clk;
+	rtc_reg_write(data);
+	lasat_ndelay(250);
+	if (ds1603->data_reversed)
+		data &= ~ds1603->data;
+	else
+		data |= ds1603->data;
+	data &= ~ds1603->clk;
+	rtc_reg_write(data);
+	lasat_ndelay(250 + ds1603->huge_delay);
+}
+
+static void rtc_write_databit(unsigned int bit)
+{
+	unsigned long data = rtc_reg_read();
+	if (ds1603->data_reversed)
+		bit = !bit;
+	if (bit)
+		data |= ds1603->data;
+	else
+		data &= ~ds1603->data;
+
+	rtc_reg_write(data);
+	lasat_ndelay(50 + ds1603->huge_delay);
+	rtc_cycle_clock(data);
+}
+
+static unsigned int rtc_read_databit(void)
+{
+	unsigned int data;
+
+	data = (rtc_datareg_read() & (1 << ds1603->data_read_shift))
+		>> ds1603->data_read_shift;
+	rtc_cycle_clock(rtc_reg_read());
+	return data;
+}
+
+static void rtc_write_byte(unsigned int byte)
+{
+	int i;
+
+	for (i = 0; i <= 7; i++) {
+		rtc_write_databit(byte & 1L);
+		byte >>= 1;
+	}
+}
+
+static void rtc_write_word(unsigned long word)
+{
+	int i;
+
+	for (i = 0; i <= 31; i++) {
+		rtc_write_databit(word & 1L);
+		word >>= 1;
+	}
+}
+
+static unsigned long rtc_read_word(void)
+{
+	int i;
+	unsigned long word = 0;
+	unsigned long shift = 0;
+
+	for (i = 0; i <= 31; i++) {
+		word |= rtc_read_databit() << shift;
+		shift++;
+	}
+	return word;
+}
+
+static void rtc_init_op(void)
+{
+	rtc_nrst_high();
+
+	rtc_reg_write(rtc_reg_read() & ~ds1603->clk);
+
+	lasat_ndelay(50);
+}
+
+static void rtc_end_op(void)
+{
+	rtc_nrst_low();
+	lasat_ndelay(1000);
+}
+
+/* interface */
+unsigned long ds1603_read(void)
+{
+	unsigned long word;
+	unsigned long flags;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	rtc_init_op();
+	rtc_write_byte(READ_TIME_CMD);
+	word = rtc_read_word();
+	rtc_end_op();
+	spin_unlock_irqrestore(&rtc_lock, flags);
+	return word;
+}
+
+int ds1603_set(unsigned long time)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	rtc_init_op();
+	rtc_write_byte(SET_TIME_CMD);
+	rtc_write_word(time);
+	rtc_end_op();
+	spin_unlock_irqrestore(&rtc_lock, flags);
+
+	return 0;
+}
+
+void ds1603_set_trimmer(unsigned int trimval)
+{
+	rtc_init_op();
+	rtc_write_byte(((trimval << TRIMMER_SHIFT) & TRIMMER_VALUE_MASK)
+			| (TRIMMER_SET_CMD));
+	rtc_end_op();
+}
+
+void ds1603_disable(void)
+{
+	ds1603_set_trimmer(TRIMMER_DISABLE_RTC);
+}
+
+void ds1603_enable(void)
+{
+	ds1603_set_trimmer(TRIMMER_DEFAULT);
+}

arch/mips/lasat/ds1603.h

+/*
+ * Dallas Semiconductors 1603 RTC driver
+ *
+ * Brian Murphy <brian@murphy.dk>
+ *
+ */
+#ifndef __DS1603_H
+#define __DS1603_H
+
+struct ds_defs {
+	volatile u32 *reg;
+	volatile u32 *data_reg;
+	u32 rst;
+	u32 clk;
+	u32 data;
+	u32 data_read_shift;
+	char data_reversed;
+	u32 huge_delay;
+};
+
+extern struct ds_defs *ds1603;
+
+unsigned long ds1603_read(void);
+int ds1603_set(unsigned long);
+void ds1603_set_trimmer(unsigned int);
+void ds1603_enable(void);
+void ds1603_disable(void);
+void ds1603_init(struct ds_defs *);
+
+#define TRIMMER_DEFAULT	3
+#define TRIMMER_DISABLE_RTC 0
+
+#endif

arch/mips/lasat/image/Makefile

+#
+# MAKEFILE FOR THE MIPS LINUX BOOTLOADER AND ROM DEBUGGER
+#
+# i-data Networks
+#
+# Author: Thomas Horsten <thh@i-data.com>
+#
+
+ifndef Version
+ Version = "$(USER)-test"
+endif
+
+MKLASATIMG = mklasatimg
+MKLASATIMG_ARCH = mq2,mqpro,sp100,sp200
+KERNEL_IMAGE = $(TOPDIR)/vmlinux
+KERNEL_START = $(shell $(NM) $(KERNEL_IMAGE) | grep " _text" | cut -f1 -d\ )
+KERNEL_ENTRY = $(shell $(NM) $(KERNEL_IMAGE) | grep kernel_entry | cut -f1 -d\ )
+
+LDSCRIPT= -L$(obj) -Tromscript.normal
+
+HEAD_DEFINES := -D_kernel_start=0x$(KERNEL_START) \
+		-D_kernel_entry=0x$(KERNEL_ENTRY) \
+		-D VERSION="\"$(Version)\"" \
+		-D TIMESTAMP=$(shell date +%s)
+
+$(obj)/head.o: $(obj)/head.S $(KERNEL_IMAGE)
+	$(CC) -fno-pic $(HEAD_DEFINES) -I$(TOPDIR)/include -c -o $@ $<
+
+OBJECTS = head.o kImage.o
+
+rom.sw:	$(obj)/rom.sw
+rom.bin:	$(obj)/rom.bin
+
+$(obj)/rom.sw:	$(obj)/rom.bin
+	$(MKLASATIMG) -o $@ -k $^ -m $(MKLASATIMG_ARCH)
+
+$(obj)/rom.bin: $(obj)/rom
+	$(OBJCOPY) -O binary -S $^ $@
+
+# Rule to make the bootloader
+$(obj)/rom: $(addprefix $(obj)/,$(OBJECTS))
+	$(LD) $(LDFLAGS) $(LDSCRIPT) -o $@ $^
+
+$(obj)/%.o: $(obj)/%.gz
+	$(LD) -r -o $@ -b binary $<
+
+$(obj)/%.gz: $(obj)/%.bin
+	gzip -cf -9 $< > $@
+
+$(obj)/kImage.bin: $(KERNEL_IMAGE)
+	$(OBJCOPY) -O binary -S $^ $@
+
+clean:
+	rm -f rom rom.bin rom.sw kImage.bin kImage.o

arch/mips/lasat/image/head.S

+#include <asm/lasat/head.h>
+
+	.text
+	.section .text.start, "ax"
+	.set noreorder
+	.set mips3
+
+	/* Magic words identifying a software image */
+	.word	LASAT_K_MAGIC0_VAL
+	.word 	LASAT_K_MAGIC1_VAL
+
+	/* Image header version */
+	.word	0x00000002
+
+	/* image start and size */
+	.word	_image_start
+	.word	_image_size
+
+	/* start of kernel and entrypoint in uncompressed image */
+	.word	_kernel_start
+	.word	_kernel_entry
+
+	/* Here we have room for future flags */
+
+	.org	0x40
+reldate:
+	.word	TIMESTAMP
+
+	.org	0x50
+release:
+	.string VERSION

arch/mips/lasat/image/romscript.normal

+OUTPUT_ARCH(mips)
+
+SECTIONS
+{
+  .text :
+  {
+    *(.text.start)
+  }
+
+  /* Data in ROM */
+
+  .data ALIGN(0x10) :
+  {
+    *(.data)
+  }
+  _image_start = ADDR(.data);
+  _image_size = SIZEOF(.data);
+
+  .other :
+  {
+    *(.*)
+  }
+}

arch/mips/lasat/interrupt.c

+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Routines for generic manipulation of the interrupts found on the
+ * Lasat boards.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+
+#include <asm/bootinfo.h>
+#include <asm/lasat/lasatint.h>
+#include <asm/time.h>
+#include <asm/gdb-stub.h>
+
+static volatile int *lasat_int_status;
+static volatile int *lasat_int_mask;
+static volatile int lasat_int_mask_shift;
+
+void disable_lasat_irq(unsigned int irq_nr)
+{
+	*lasat_int_mask &= ~(1 << irq_nr) << lasat_int_mask_shift;
+}
+
+void enable_lasat_irq(unsigned int irq_nr)
+{
+	*lasat_int_mask |= (1 << irq_nr) << lasat_int_mask_shift;
+}
+
+static struct irq_chip lasat_irq_type = {
+	.name = "Lasat",
+	.ack = disable_lasat_irq,
+	.mask = disable_lasat_irq,
+	.mask_ack = disable_lasat_irq,
+	.unmask = enable_lasat_irq,
+};
+
+static inline int ls1bit32(unsigned int x)
+{
+	int b = 31, s;
+
+	s = 16; if (x << 16 == 0) s = 0; b -= s; x <<= s;
+	s =  8; if (x <<  8 == 0) s = 0; b -= s; x <<= s;
+	s =  4; if (x <<  4 == 0) s = 0; b -= s; x <<= s;
+	s =  2; if (x <<  2 == 0) s = 0; b -= s; x <<= s;
+	s =  1; if (x <<  1 == 0) s = 0; b -= s;
+
+	return b;
+}
+
+static unsigned long (*get_int_status)(void);
+
+static unsigned long get_int_status_100(void)
+{
+	return *lasat_int_status & *lasat_int_mask;
+}
+
+static unsigned long get_int_status_200(void)
+{
+	unsigned long int_status;
+
+	int_status = *lasat_int_status;
+	int_status &= (int_status >> LASATINT_MASK_SHIFT_200) & 0xffff;
+	return int_status;
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+	unsigned long int_status;
+	unsigned int cause = read_c0_cause();
+	int irq;
+
+	if (cause & CAUSEF_IP7) {	/* R4000 count / compare IRQ */
+		ll_timer_interrupt(7);
+		return;
+	}
+
+	int_status = get_int_status();
+
+	/* if int_status == 0, then the interrupt has already been cleared */
+	if (int_status) {
+		irq = ls1bit32(int_status);
+
+		do_IRQ(irq);
+	}
+}
+
+void __init arch_init_irq(void)
+{
+	int i;
+
+	switch (mips_machtype) {
+	case MACH_LASAT_100:
+		lasat_int_status = (void *)LASAT_INT_STATUS_REG_100;
+		lasat_int_mask = (void *)LASAT_INT_MASK_REG_100;
+		lasat_int_mask_shift = LASATINT_MASK_SHIFT_100;
+		get_int_status = get_int_status_100;
+		*lasat_int_mask = 0;
+		break;
+	case MACH_LASAT_200:
+		lasat_int_status = (void *)LASAT_INT_STATUS_REG_200;
+		lasat_int_mask = (void *)LASAT_INT_MASK_REG_200;
+		lasat_int_mask_shift = LASATINT_MASK_SHIFT_200;
+		get_int_status = get_int_status_200;
+		*lasat_int_mask &= 0xffff;
+		break;
+	default:
+		panic("arch_init_irq: mips_machtype incorrect");
+	}
+
+	for (i = 0; i <= LASATINT_END; i++)
+		set_irq_chip_and_handler(i, &lasat_irq_type, handle_level_irq);
+}

arch/mips/lasat/lasat_board.c

+/*
+ * Thomas Horsten <thh@lasat.com>
+ * Copyright (C) 2000 LASAT Networks A/S.
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Routines specific to the LASAT boards
+ */
+#include <linux/types.h>
+#include <linux/crc32.h>
+#include <asm/lasat/lasat.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+#include "at93c.h"
+/* New model description table */
+#include "lasat_models.h"
+
+#define EEPROM_CRC(data, len) (~crc32(~0, data, len))
+
+struct lasat_info lasat_board_info;
+
+void update_bcastaddr(void);
+
+int EEPROMRead(unsigned int pos, unsigned char *data, int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++)
+		*data++ = at93c_read(pos++);
+
+	return 0;
+}
+
+int EEPROMWrite(unsigned int pos, unsigned char *data, int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++)
+		at93c_write(pos++, *data++);
+
+	return 0;
+}
+
+static void init_flash_sizes(void)
+{
+	unsigned long *lb = lasat_board_info.li_flashpart_base;
+	unsigned long *ls = lasat_board_info.li_flashpart_size;
+	int i;
+
+	ls[LASAT_MTD_BOOTLOADER] = 0x40000;
+	ls[LASAT_MTD_SERVICE] = 0xC0000;
+	ls[LASAT_MTD_NORMAL] = 0x100000;
+
+	if (mips_machtype == MACH_LASAT_100) {
+		lasat_board_info.li_flash_base = 0x1e000000;
+
+		lb[LASAT_MTD_BOOTLOADER] = 0x1e400000;
+
+		if (lasat_board_info.li_flash_size > 0x200000) {
+			ls[LASAT_MTD_CONFIG] = 0x100000;
+			ls[LASAT_MTD_FS] = 0x500000;
+		}
+	} else {
+		lasat_board_info.li_flash_base = 0x10000000;
+
+		if (lasat_board_info.li_flash_size < 0x1000000) {
+			lb[LASAT_MTD_BOOTLOADER] = 0x10000000;
+			ls[LASAT_MTD_CONFIG] = 0x100000;
+			if (lasat_board_info.li_flash_size >= 0x400000)
+				ls[LASAT_MTD_FS] =
+				     lasat_board_info.li_flash_size - 0x300000;
+		}
+	}
+
+	for (i = 1; i < LASAT_MTD_LAST; i++)
+		lb[i] = lb[i-1] + ls[i-1];
+}
+
+int lasat_init_board_info(void)
+{
+	int c;
+	unsigned long crc;
+	unsigned long cfg0, cfg1;
+	const struct product_info   *ppi;
+	int i_n_base_models = N_BASE_MODELS;
+	const char * const * i_txt_base_models = txt_base_models;
+	int i_n_prids = N_PRIDS;
+
+	memset(&lasat_board_info, 0, sizeof(lasat_board_info));
+
+	/* First read the EEPROM info */
+	EEPROMRead(0, (unsigned char *)&lasat_board_info.li_eeprom_info,
+		   sizeof(struct lasat_eeprom_struct));
+
+	/* Check the CRC */
+	crc = EEPROM_CRC((unsigned char *)(&lasat_board_info.li_eeprom_info),
+		    sizeof(struct lasat_eeprom_struct) - 4);
+
+	if (crc != lasat_board_info.li_eeprom_info.crc32) {
+		printk(KERN_WARNING "WARNING...\nWARNING...\nEEPROM CRC does "
+		       "not match calculated, attempting to soldier on...\n");
+	}
+
+	if (lasat_board_info.li_eeprom_info.version != LASAT_EEPROM_VERSION) {
+		printk(KERN_WARNING "WARNING...\nWARNING...\nEEPROM version "
+		       "%d, wanted version %d, attempting to soldier on...\n",
+		       (unsigned int)lasat_board_info.li_eeprom_info.version,
+		       LASAT_EEPROM_VERSION);
+	}
+
+	cfg0 = lasat_board_info.li_eeprom_info.cfg[0];
+	cfg1 = lasat_board_info.li_eeprom_info.cfg[1];
+
+	if (LASAT_W0_DSCTYPE(cfg0) != 1) {
+		printk(KERN_WARNING "WARNING...\nWARNING...\n"
+		       "Invalid configuration read from EEPROM, attempting to "
+		       "soldier on...");
+	}
+	/* We have a valid configuration */
+
+	switch (LASAT_W0_SDRAMBANKSZ(cfg0)) {
+	case 0:
+		lasat_board_info.li_memsize = 0x0800000;
+		break;
+	case 1:
+		lasat_board_info.li_memsize = 0x1000000;
+		break;
+	case 2:
+		lasat_board_info.li_memsize = 0x2000000;
+		break;
+	case 3:
+		lasat_board_info.li_memsize = 0x4000000;
+		break;
+	case 4:
+		lasat_board_info.li_memsize = 0x8000000;
+		break;
+	default:
+		lasat_board_info.li_memsize = 0;
+	}
+
+	switch (LASAT_W0_SDRAMBANKS(cfg0)) {
+	case 0:
+		break;
+	case 1:
+		lasat_board_info.li_memsize *= 2;
+		break;
+	default:
+		break;
+	}
+
+	switch (LASAT_W0_BUSSPEED(cfg0)) {
+	case 0x0:
+		lasat_board_info.li_bus_hz = 60000000;
+		break;
+	case 0x1:
+		lasat_board_info.li_bus_hz = 66000000;
+		break;
+	case 0x2:
+		lasat_board_info.li_bus_hz = 66666667;
+		break;
+	case 0x3:
+		lasat_board_info.li_bus_hz = 80000000;
+		break;
+	case 0x4:
+		lasat_board_info.li_bus_hz = 83333333;
+		break;
+	case 0x5:
+		lasat_board_info.li_bus_hz = 100000000;
+		break;
+	}
+
+	switch (LASAT_W0_CPUCLK(cfg0)) {
+	case 0x0:
+		lasat_board_info.li_cpu_hz =
+			lasat_board_info.li_bus_hz;
+		break;
+	case 0x1:
+		lasat_board_info.li_cpu_hz =
+			lasat_board_info.li_bus_hz +
+			(lasat_board_info.li_bus_hz >> 1);
+		break;
+	case 0x2:
+		lasat_board_info.li_cpu_hz =
+			lasat_board_info.li_bus_hz +
+			lasat_board_info.li_bus_hz;
+		break;
+	case 0x3:
+		lasat_board_info.li_cpu_hz =
+			lasat_board_info.li_bus_hz +
+			lasat_board_info.li_bus_hz +
+			(lasat_board_info.li_bus_hz >> 1);
+		break;
+	case 0x4:
+		lasat_board_info.li_cpu_hz =
+			lasat_board_info.li_bus_hz +
+			lasat_board_info.li_bus_hz +
+			lasat_board_info.li_bus_hz;
+		break;
+	}
+
+	/* Flash size */
+	switch (LASAT_W1_FLASHSIZE(cfg1)) {
+	case 0:
+		lasat_board_info.li_flash_size = 0x200000;
+		break;
+	case 1:
+		lasat_board_info.li_flash_size = 0x400000;
+		break;
+	case 2:
+		lasat_board_info.li_flash_size = 0x800000;
+		break;
+	case 3:
+		lasat_board_info.li_flash_size = 0x1000000;
+		break;
+	case 4:
+		lasat_board_info.li_flash_size = 0x2000000;
+		break;
+	}
+
+	init_flash_sizes();
+
+	lasat_board_info.li_bmid = LASAT_W0_BMID(cfg0);
+	lasat_board_info.li_prid = lasat_board_info.li_eeprom_info.prid;
+	if (lasat_board_info.li_prid == 0xffff || lasat_board_info.li_prid == 0)
+		lasat_board_info.li_prid = lasat_board_info.li_bmid;
+
+	/* Base model stuff */
+	if (lasat_board_info.li_bmid > i_n_base_models)
+		lasat_board_info.li_bmid = i_n_base_models;
+	strcpy(lasat_board_info.li_bmstr,
+	       i_txt_base_models[lasat_board_info.li_bmid]);
+
+	/* Product ID dependent values */
+	c = lasat_board_info.li_prid;
+	if (c >= i_n_prids) {
+		strcpy(lasat_board_info.li_namestr, "Unknown Model");
+		strcpy(lasat_board_info.li_typestr, "Unknown Type");
+	} else {
+		ppi = &vendor_info_table[0].vi_product_info[c];
+		strcpy(lasat_board_info.li_namestr, ppi->pi_name);
+		if (ppi->pi_type)
+			strcpy(lasat_board_info.li_typestr, ppi->pi_type);
+		else
+			sprintf(lasat_board_info.li_typestr, "%d", 10 * c);
+	}
+
+#if defined(CONFIG_INET) && defined(CONFIG_SYSCTL)
+	update_bcastaddr();
+#endif
+
+	return 0;
+}
+
+void lasat_write_eeprom_info(void)
+{
+	unsigned long crc;
+
+	/* Generate the CRC */
+	crc = EEPROM_CRC((unsigned char *)(&lasat_board_info.li_eeprom_info),
+		    sizeof(struct lasat_eeprom_struct) - 4);
+	lasat_board_info.li_eeprom_info.crc32 = crc;
+
+	/* Write the EEPROM info */
+	EEPROMWrite(0, (unsigned char *)&lasat_board_info.li_eeprom_info,
+		    sizeof(struct lasat_eeprom_struct));
+}

arch/mips/lasat/lasat_models.h

+/*
+ * Model description tables
+ */
+#include <linux/kernel.h>
+
+struct product_info {
+	const char     *pi_name;
+	const char     *pi_type;
+};
+
+struct vendor_info {
+	const char     *vi_name;
+	const struct product_info *vi_product_info;
+};
+
+/*
+ * Base models
+ */
+static const char * const txt_base_models[] = {
+	"MQ 2", "MQ Pro", "SP 25", "SP 50", "SP 100", "SP 5000", "SP 7000",
+	"SP 1000", "Unknown"
+};
+#define N_BASE_MODELS (ARRAY_SIZE(txt_base_models) - 1)
+
+/*
+ * Eicon Networks
+ */
+static const char txt_en_mq[] = "Masquerade";
+static const char txt_en_sp[] = "Safepipe";
+
+static const struct product_info product_info_eicon[] = {
+	{ txt_en_mq, "II"   }, /*  0 */
+	{ txt_en_mq, "Pro"  }, /*  1 */
+	{ txt_en_sp, "25"   }, /*  2 */
+	{ txt_en_sp, "50"   }, /*  3 */
+	{ txt_en_sp, "100"  }, /*  4 */
+	{ txt_en_sp, "5000" }, /*  5 */
+	{ txt_en_sp, "7000" }, /*  6 */
+	{ txt_en_sp, "30"   }, /*  7 */
+	{ txt_en_sp, "5100" }, /*  8 */
+	{ txt_en_sp, "7100" }, /*  9 */
+	{ txt_en_sp, "1110" }, /* 10 */
+	{ txt_en_sp, "3020" }, /* 11 */
+	{ txt_en_sp, "3030" }, /* 12 */
+	{ txt_en_sp, "5020" }, /* 13 */
+	{ txt_en_sp, "5030" }, /* 14 */
+	{ txt_en_sp, "1120" }, /* 15 */
+	{ txt_en_sp, "1130" }, /* 16 */
+	{ txt_en_sp, "6010" }, /* 17 */
+	{ txt_en_sp, "6110" }, /* 18 */
+	{ txt_en_sp, "6210" }, /* 19 */
+	{ txt_en_sp, "1020" }, /* 20 */
+	{ txt_en_sp, "1040" }, /* 21 */
+	{ txt_en_sp, "1050" }, /* 22 */
+	{ txt_en_sp, "1060" }, /* 23 */
+};
+
+#define N_PRIDS ARRAY_SIZE(product_info_eicon)
+
+/*
+ * The vendor table
+ */
+static struct vendor_info const vendor_info_table[] = {
+	{ "Eicon Networks",	product_info_eicon   },
+};
+
+#define N_VENDORS ARRAY_SIZE(vendor_info_table)

arch/mips/lasat/picvue.c

+/*
+ * Picvue PVC160206 display driver
+ *
+ * Brian Murphy <brian@murphy.dk>
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <asm/bootinfo.h>
+#include <asm/lasat/lasat.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+
+#include "picvue.h"
+
+#define PVC_BUSY		0x80
+#define PVC_NLINES		2
+#define PVC_DISPMEM		80
+#define PVC_LINELEN		PVC_DISPMEM / PVC_NLINES
+
+struct pvc_defs *picvue;
+
+DECLARE_MUTEX(pvc_sem);
+
+static void pvc_reg_write(u32 val)
+{
+	*picvue->reg = val;
+}
+
+static u32 pvc_reg_read(void)
+{
+	u32 tmp = *picvue->reg;
+	return tmp;
+}
+
+static void pvc_write_byte(u32 data, u8 byte)
+{
+	data |= picvue->e;
+	pvc_reg_write(data);
+	data &= ~picvue->data_mask;
+	data |= byte << picvue->data_shift;
+	pvc_reg_write(data);
+	ndelay(220);
+	pvc_reg_write(data & ~picvue->e);
+	ndelay(220);
+}
+
+static u8 pvc_read_byte(u32 data)
+{
+	u8 byte;
+
+	data |= picvue->e;
+	pvc_reg_write(data);
+	ndelay(220);
+	byte = (pvc_reg_read() & picvue->data_mask) >> picvue->data_shift;
+	data &= ~picvue->e;
+	pvc_reg_write(data);
+	ndelay(220);
+	return byte;
+}
+
+static u8 pvc_read_data(void)
+{
+	u32 data = pvc_reg_read();
+	u8 byte;
+	data |= picvue->rw;
+	data &= ~picvue->rs;
+	pvc_reg_write(data);
+	ndelay(40);
+	byte = pvc_read_byte(data);
+	data |= picvue->rs;
+	pvc_reg_write(data);
+	return byte;
+}
+
+#define TIMEOUT 1000
+static int pvc_wait(void)
+{
+	int i = TIMEOUT;
+	int err = 0;
+
+	while ((pvc_read_data() & PVC_BUSY) && i)
+		i--;
+	if (i == 0)
+		err = -ETIME;
+
+	return err;
+}
+
+#define MODE_INST 0
+#define MODE_DATA 1
+static void pvc_write(u8 byte, int mode)
+{
+	u32 data = pvc_reg_read();
+	data &= ~picvue->rw;
+	if (mode == MODE_DATA)
+		data |= picvue->rs;
+	else
+		data &= ~picvue->rs;
+	pvc_reg_write(data);
+	ndelay(40);
+	pvc_write_byte(data, byte);
+	if (mode == MODE_DATA)
+		data &= ~picvue->rs;
+	else
+		data |= picvue->rs;
+	pvc_reg_write(data);
+	pvc_wait();
+}
+
+void pvc_write_string(const unsigned char *str, u8 addr, int line)
+{
+	int i = 0;
+
+	if (line > 0 && (PVC_NLINES > 1))
+		addr += 0x40 * line;
+	pvc_write(0x80 | addr, MODE_INST);
+
+	while (*str != 0 && i < PVC_LINELEN) {
+		pvc_write(*str++, MODE_DATA);
+		i++;
+	}
+}
+
+void pvc_write_string_centered(const unsigned char *str, int line)
+{
+	int len = strlen(str);
+	u8 addr;
+
+	if (len > PVC_VISIBLE_CHARS)
+		addr = 0;
+	else
+		addr = (PVC_VISIBLE_CHARS - strlen(str))/2;
+
+	pvc_write_string(str, addr, line);
+}
+
+void pvc_dump_string(const unsigned char *str)
+{
+	int len = strlen(str);
+
+	pvc_write_string(str, 0, 0);
+	if (len > PVC_VISIBLE_CHARS)
+		pvc_write_string(&str[PVC_VISIBLE_CHARS], 0, 1);
+}
+
+#define BM_SIZE			8
+#define MAX_PROGRAMMABLE_CHARS	8
+int pvc_program_cg(int charnum, u8 bitmap[BM_SIZE])
+{
+	int i;
+	int addr;
+
+	if (charnum > MAX_PROGRAMMABLE_CHARS)
+		return -ENOENT;
+
+	addr = charnum * 8;
+	pvc_write(0x40 | addr, MODE_INST);
+
+	for (i = 0; i < BM_SIZE; i++)
+		pvc_write(bitmap[i], MODE_DATA);
+	return 0;
+}
+
+#define FUNC_SET_CMD	0x20
+#define  EIGHT_BYTE	(1 << 4)
+#define  FOUR_BYTE	0
+#define  TWO_LINES	(1 << 3)
+#define  ONE_LINE	0
+#define  LARGE_FONT	(1 << 2)
+#define  SMALL_FONT	0
+
+static void pvc_funcset(u8 cmd)
+{
+	pvc_write(FUNC_SET_CMD | (cmd & (EIGHT_BYTE|TWO_LINES|LARGE_FONT)),
+		  MODE_INST);
+}
+
+#define ENTRYMODE_CMD		0x4
+#define  AUTO_INC		(1 << 1)
+#define  AUTO_DEC		0
+#define  CURSOR_FOLLOWS_DISP	(1 << 0)
+
+static void pvc_entrymode(u8 cmd)
+{
+	pvc_write(ENTRYMODE_CMD | (cmd & (AUTO_INC|CURSOR_FOLLOWS_DISP)),
+		  MODE_INST);
+}
+
+#define DISP_CNT_CMD	0x08
+#define  DISP_OFF	0
+#define  DISP_ON	(1 << 2)
+#define  CUR_ON		(1 << 1)
+#define  CUR_BLINK	(1 << 0)
+void pvc_dispcnt(u8 cmd)
+{
+	pvc_write(DISP_CNT_CMD | (cmd & (DISP_ON|CUR_ON|CUR_BLINK)), MODE_INST);
+}
+
+#define MOVE_CMD	0x10
+#define  DISPLAY	(1 << 3)
+#define  CURSOR		0
+#define  RIGHT		(1 << 2)
+#define  LEFT		0
+void pvc_move(u8 cmd)
+{
+	pvc_write(MOVE_CMD | (cmd & (DISPLAY|RIGHT)), MODE_INST);
+}
+
+#define CLEAR_CMD	0x1
+void pvc_clear(void)
+{
+	pvc_write(CLEAR_CMD, MODE_INST);
+}
+
+#define HOME_CMD	0x2
+void pvc_home(void)
+{
+	pvc_write(HOME_CMD, MODE_INST);
+}
+
+int pvc_init(void)
+{
+	u8 cmd = EIGHT_BYTE;
+
+	if (PVC_NLINES == 2)
+		cmd |= (SMALL_FONT|TWO_LINES);
+	else
+		cmd |= (LARGE_FONT|ONE_LINE);
+	pvc_funcset(cmd);
+	pvc_dispcnt(DISP_ON);
+	pvc_entrymode(AUTO_INC);
+
+	pvc_clear();
+	pvc_write_string_centered("Display", 0);
+	pvc_write_string_centered("Initialized", 1);
+
+	return 0;
+}
+
+module_init(pvc_init);
+MODULE_LICENSE("GPL");

arch/mips/lasat/picvue.h

+/*
+ * Picvue PVC160206 display driver
+ *
+ * Brian Murphy <brian.murphy@eicon.com>
+ *
+ */
+#include <asm/semaphore.h>
+
+struct pvc_defs {
+	volatile u32 *reg;
+	u32 data_shift;
+	u32 data_mask;
+	u32 e;
+	u32 rw;
+	u32 rs;
+};
+
+extern struct pvc_defs *picvue;
+
+#define PVC_NLINES		2
+#define PVC_DISPMEM		80
+#define PVC_LINELEN		PVC_DISPMEM / PVC_NLINES
+#define PVC_VISIBLE_CHARS	16
+
+void pvc_write_string(const unsigned char *str, u8 addr, int line);
+void pvc_write_string_centered(const unsigned char *str, int line);
+void pvc_dump_string(const unsigned char *str);
+
+#define BM_SIZE			8
+#define MAX_PROGRAMMABLE_CHARS	8
+int pvc_program_cg(int charnum, u8 bitmap[BM_SIZE]);
+
+void pvc_dispcnt(u8 cmd);
+#define  DISP_OFF	0
+#define  DISP_ON	(1 << 2)
+#define  CUR_ON		(1 << 1)
+#define  CUR_BLINK	(1 << 0)
+
+void pvc_move(u8 cmd);
+#define  DISPLAY	(1 << 3)
+#define  CURSOR		0
+#define  RIGHT		(1 << 2)
+#define  LEFT		0
+
+void pvc_clear(void);
+void pvc_home(void);
+
+extern struct semaphore pvc_sem;

arch/mips/lasat/picvue_proc.c

+/*
+ * Picvue PVC160206 display driver
+ *
+ * Brian Murphy <brian.murphy@eicon.com>
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+
+#include <linux/proc_fs.h>
+#include <linux/interrupt.h>
+
+#include <linux/timer.h>
+
+#include "picvue.h"
+
+static char pvc_lines[PVC_NLINES][PVC_LINELEN+1];
+static int pvc_linedata[PVC_NLINES];
+static struct proc_dir_entry *pvc_display_dir;
+static char *pvc_linename[PVC_NLINES] = {"line1", "line2"};
+#define DISPLAY_DIR_NAME "display"
+static int scroll_dir, scroll_interval;
+
+static struct timer_list timer;
+
+static void pvc_display(unsigned long data)
+{
+	int i;
+
+	pvc_clear();
+	for (i = 0; i < PVC_NLINES; i++)
+		pvc_write_string(pvc_lines[i], 0, i);
+}
+
+static DECLARE_TASKLET(pvc_display_tasklet, &pvc_display, 0);
+
+static int pvc_proc_read_line(char *page, char **start,
+			     off_t off, int count,
+			     int *eof, void *data)
+{
+	char *origpage = page;
+	int lineno = *(int *)data;
+
+	if (lineno < 0 || lineno > PVC_NLINES) {
+		printk(KERN_WARNING "proc_read_line: invalid lineno %d\n", lineno);
+		return 0;
+	}
+
+	down(&pvc_sem);
+	page += sprintf(page, "%s\n", pvc_lines[lineno]);
+	up(&pvc_sem);
+
+	return page - origpage;
+}
+
+static int pvc_proc_write_line(struct file *file, const char *buffer,
+			   unsigned long count, void *data)
+{
+	int origcount = count;
+	int lineno = *(int *)data;
+
+	if (lineno < 0 || lineno > PVC_NLINES) {
+		printk(KERN_WARNING "proc_write_line: invalid lineno %d\n",
+		       lineno);
+		return origcount;
+	}
+
+	if (count > PVC_LINELEN)
+		count = PVC_LINELEN;
+
+	if (buffer[count-1] == '\n')
+		count--;
+
+	down(&pvc_sem);
+	strncpy(pvc_lines[lineno], buffer, count);
+	pvc_lines[lineno][count] = '\0';
+	up(&pvc_sem);
+
+	tasklet_schedule(&pvc_display_tasklet);
+
+	return origcount;
+}
+
+static int pvc_proc_write_scroll(struct file *file, const char *buffer,
+			   unsigned long count, void *data)
+{
+	int origcount = count;
+	int cmd = simple_strtol(buffer, NULL, 10);
+
+	down(&pvc_sem);
+	if (scroll_interval != 0)
+		del_timer(&timer);
+
+	if (cmd == 0) {
+		scroll_dir = 0;
+		scroll_interval = 0;
+	} else {
+		if (cmd < 0) {
+			scroll_dir = -1;
+			scroll_interval = -cmd;
+		} else {
+			scroll_dir = 1;
+			scroll_interval = cmd;
+		}
+		add_timer(&timer);
+	}
+	up(&pvc_sem);
+
+	return origcount;
+}
+
+static int pvc_proc_read_scroll(char *page, char **start,
+			     off_t off, int count,
+			     int *eof, void *data)
+{
+	char *origpage = page;
+
+	down(&pvc_sem);
+	page += sprintf(page, "%d\n", scroll_dir * scroll_interval);
+	up(&pvc_sem);
+
+	return page - origpage;
+}
+
+
+void pvc_proc_timerfunc(unsigned long data)
+{
+	if (scroll_dir < 0)
+		pvc_move(DISPLAY|RIGHT);
+	else if (scroll_dir > 0)
+		pvc_move(DISPLAY|LEFT);
+
+	timer.expires = jiffies + scroll_interval;
+	add_timer(&timer);
+}
+
+static void pvc_proc_cleanup(void)
+{
+	int i;
+	for (i = 0; i < PVC_NLINES; i++)
+		remove_proc_entry(pvc_linename[i], pvc_display_dir);
+	remove_proc_entry("scroll", pvc_display_dir);
+	remove_proc_entry(DISPLAY_DIR_NAME, NULL);
+
+	del_timer(&timer);
+}
+
+static int __init pvc_proc_init(void)
+{
+	struct proc_dir_entry *proc_entry;
+	int i;
+
+	pvc_display_dir = proc_mkdir(DISPLAY_DIR_NAME, NULL);
+	if (pvc_display_dir == NULL)
+		goto error;
+
+	for (i = 0; i < PVC_NLINES; i++) {
+		strcpy(pvc_lines[i], "");
+		pvc_linedata[i] = i;
+	}
+	for (i = 0; i < PVC_NLINES; i++) {
+		proc_entry = create_proc_entry(pvc_linename[i], 0644,
+					       pvc_display_dir);
+		if (proc_entry == NULL)
+			goto error;
+
+		proc_entry->read_proc = pvc_proc_read_line;
+		proc_entry->write_proc = pvc_proc_write_line;
+		proc_entry->data = &pvc_linedata[i];
+	}
+	proc_entry = create_proc_entry("scroll", 0644, pvc_display_dir);
+	if (proc_entry == NULL)
+		goto error;
+
+	proc_entry->write_proc = pvc_proc_write_scroll;
+	proc_entry->read_proc = pvc_proc_read_scroll;
+
+	init_timer(&timer);
+	timer.function = pvc_proc_timerfunc;
+
+	return 0;
+error:
+	pvc_proc_cleanup();
+	return -ENOMEM;
+}
+
+module_init(pvc_proc_init);
+module_exit(pvc_proc_cleanup);
+MODULE_LICENSE("GPL");

arch/mips/lasat/prom.c

+/*
+ * PROM interface routines.
+ */
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/bootmem.h>
+#include <linux/ioport.h>
+#include <asm/bootinfo.h>
+#include <asm/lasat/lasat.h>
+#include <asm/cpu.h>
+
+#include "at93c.h"
+#include <asm/lasat/eeprom.h>
+#include "prom.h"
+
+#define RESET_VECTOR	0xbfc00000
+#define PROM_JUMP_TABLE_ENTRY(n) (*((u32 *)(RESET_VECTOR + 0x20) + n))
+#define PROM_DISPLAY_ADDR	PROM_JUMP_TABLE_ENTRY(0)
+#define PROM_PUTC_ADDR		PROM_JUMP_TABLE_ENTRY(1)
+#define PROM_MONITOR_ADDR	PROM_JUMP_TABLE_ENTRY(2)
+
+static void null_prom_display(const char *string, int pos, int clear)
+{
+}
+
+static void null_prom_monitor(void)
+{
+}
+
+static void null_prom_putc(char c)
+{
+}
+
+/* these are functions provided by the bootloader */
+static void (*__prom_putc)(char c) = null_prom_putc;
+
+void prom_putchar(char c)
+{
+	__prom_putc(c);
+}
+
+void (*prom_display)(const char *string, int pos, int clear) =
+		null_prom_display;
+void (*prom_monitor)(void) = null_prom_monitor;
+
+unsigned int lasat_ndelay_divider;
+
+static void setup_prom_vectors(void)
+{
+	u32 version = *(u32 *)(RESET_VECTOR + 0x90);
+
+	if (version >= 307) {
+		prom_display = (void *)PROM_DISPLAY_ADDR;
+		__prom_putc = (void *)PROM_PUTC_ADDR;
+		prom_monitor = (void *)PROM_MONITOR_ADDR;
+	}
+	printk(KERN_DEBUG "prom vectors set up\n");
+}
+
+static struct at93c_defs at93c_defs[N_MACHTYPES] = {
+	{
+		.reg		= (void *)AT93C_REG_100,
+		.rdata_reg	= (void *)AT93C_RDATA_REG_100,
+		.rdata_shift	= AT93C_RDATA_SHIFT_100,
+		.wdata_shift	= AT93C_WDATA_SHIFT_100,
+		.cs		= AT93C_CS_M_100,
+		.clk		= AT93C_CLK_M_100
+	}, {
+		.reg		= (void *)AT93C_REG_200,
+		.rdata_reg	= (void *)AT93C_RDATA_REG_200,
+		.rdata_shift	= AT93C_RDATA_SHIFT_200,
+		.wdata_shift	= AT93C_WDATA_SHIFT_200,
+		.cs		= AT93C_CS_M_200,
+		.clk		= AT93C_CLK_M_200
+	},
+};
+
+void __init prom_init(void)
+{
+	int argc = fw_arg0;
+	char **argv = (char **) fw_arg1;
+
+	setup_prom_vectors();
+
+	if (current_cpu_data.cputype == CPU_R5000) {
+		printk(KERN_INFO "LASAT 200 board\n");
+		mips_machtype = MACH_LASAT_200;
+		lasat_ndelay_divider = LASAT_200_DIVIDER;
+	} else {
+		printk(KERN_INFO "LASAT 100 board\n");
+		mips_machtype = MACH_LASAT_100;
+		lasat_ndelay_divider = LASAT_100_DIVIDER;
+	}
+
+	at93c = &at93c_defs[mips_machtype];
+
+	lasat_init_board_info();		/* Read info from EEPROM */
+
+	mips_machgroup = MACH_GROUP_LASAT;
+
+	/* Get the command line */
+	if (argc > 0) {
+		strncpy(arcs_cmdline, argv[0], CL_SIZE-1);
+		arcs_cmdline[CL_SIZE-1] = '\0';
+	}
+
+	/* Set the I/O base address */
+	set_io_port_base(KSEG1);
+
+	/* Set memory regions */
+	ioport_resource.start = 0;
+	ioport_resource.end = 0xffffffff;	/* Wrong, fixme.  */
+
+	add_memory_region(0, lasat_board_info.li_memsize, BOOT_MEM_RAM);
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+const char *get_system_type(void)
+{
+	return lasat_board_info.li_bmstr;
+}

arch/mips/lasat/prom.h

+#ifndef __PROM_H
+#define __PROM_H
+
+extern void (*prom_display)(const char *string, int pos, int clear);
+extern void (*prom_monitor)(void);
+
+#endif /* __PROM_H */

arch/mips/lasat/reset.c

+/*
+ * Thomas Horsten <thh@lasat.com>
+ * Copyright (C) 2000 LASAT Networks A/S.
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Reset the LASAT board.
+ */
+#include <linux/kernel.h>
+#include <linux/pm.h>
+
+#include <asm/reboot.h>
+#include <asm/system.h>
+#include <asm/lasat/lasat.h>
+
+#include "picvue.h"
+#include "prom.h"
+
+static void lasat_machine_restart(char *command);
+static void lasat_machine_halt(void);
+
+/* Used to set machine to boot in service mode via /proc interface */
+int lasat_boot_to_service;
+
+static void lasat_machine_restart(char *command)
+{
+	local_irq_disable();
+
+	if (lasat_boot_to_service) {
+		*(volatile unsigned int *)0xa0000024 = 0xdeadbeef;
+		*(volatile unsigned int *)0xa00000fc = 0xfedeabba;
+	}
+	*lasat_misc->reset_reg = 0xbedead;
+	for (;;) ;
+}
+
+static void lasat_machine_halt(void)
+{
+	local_irq_disable();
+
+	prom_monitor();
+	for (;;) ;
+}
+
+void lasat_reboot_setup(void)
+{
+	_machine_restart = lasat_machine_restart;
+	_machine_halt = lasat_machine_halt;
+	pm_power_off = lasat_machine_halt;
+}

arch/mips/lasat/serial.c

+/*
+ *  Registration of Lasat UART platform device.
+ *
+ *  Copyright (C) 2007  Brian Murphy <brian@murphy.dk>
+ *
+ *  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
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+
+#include <asm/bootinfo.h>
+#include <asm/lasat/lasat.h>
+#include <asm/lasat/serial.h>
+
+static struct resource lasat_serial_res[2] __initdata;
+
+static struct plat_serial8250_port lasat_serial8250_port[] = {
+	{
+		.iotype		= UPIO_MEM,
+		.flags		= UPF_IOREMAP | UPF_BOOT_AUTOCONF |
+				  UPF_SKIP_TEST,
+	},
+	{},
+};
+
+static __init int lasat_uart_add(void)
+{
+	struct platform_device *pdev;
+	int retval;
+
+	pdev = platform_device_alloc("serial8250", -1);
+	if (!pdev)
+		return -ENOMEM;
+
+	if (mips_machtype == MACH_LASAT_100) {
+		lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_100);
+		lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_100 * 8 - 1;
+		lasat_serial_res[0].flags = IORESOURCE_MEM;
+		lasat_serial_res[1].start = LASATINT_UART_100;
+		lasat_serial_res[1].end = LASATINT_UART_100;
+		lasat_serial_res[1].flags = IORESOURCE_IRQ;
+
+		lasat_serial8250_port[0].mapbase = LASAT_UART_REGS_BASE_100;
+		lasat_serial8250_port[0].uartclk = LASAT_BASE_BAUD_100 * 16;
+		lasat_serial8250_port[0].regshift = LASAT_UART_REGS_SHIFT_100;
+		lasat_serial8250_port[0].irq = LASATINT_UART_100;
+	} else {
+		lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_200);
+		lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_200 * 8 - 1;
+		lasat_serial_res[0].flags = IORESOURCE_MEM;
+		lasat_serial_res[1].start = LASATINT_UART_200;
+		lasat_serial_res[1].end = LASATINT_UART_200;
+		lasat_serial_res[1].flags = IORESOURCE_IRQ;
+
+		lasat_serial8250_port[0].mapbase = LASAT_UART_REGS_BASE_200;
+		lasat_serial8250_port[0].uartclk = LASAT_BASE_BAUD_200 * 16;
+		lasat_serial8250_port[0].regshift = LASAT_UART_REGS_SHIFT_200;
+		lasat_serial8250_port[0].irq = LASATINT_UART_200;
+	}
+
+	pdev->id = PLAT8250_DEV_PLATFORM;
+	pdev->dev.platform_data = lasat_serial8250_port;
+
+	retval = platform_device_add_resources(pdev, lasat_serial_res, ARRAY_SIZE(lasat_serial_res));
+	if (retval)
+		goto err_free_device;
+
+	retval = platform_device_add(pdev);
+	if (retval)
+		goto err_free_device;
+
+	return 0;
+
+err_free_device:
+	platform_device_put(pdev);
+
+	return retval;
+}
+device_initcall(lasat_uart_add);

arch/mips/lasat/setup.c

+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999 MIPS Technologies, Inc.  All rights reserved.
+ *
+ * Thomas Horsten <thh@lasat.com>
+ * Copyright (C) 2000 LASAT Networks A/S.
+ *
+ * Brian Murphy <brian@murphy.dk>
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Lasat specific setup.
+ */
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/tty.h>
+
+#include <asm/time.h>
+#include <asm/cpu.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/lasat/lasat.h>
+#include <asm/lasat/serial.h>
+
+#ifdef CONFIG_PICVUE
+#include <linux/notifier.h>
+#endif
+
+#include "ds1603.h"
+#include <asm/lasat/ds1603.h>
+#include <asm/lasat/picvue.h>
+#include <asm/lasat/eeprom.h>
+
+#include "prom.h"
+
+int lasat_command_line;
+void lasatint_init(void);
+
+extern void lasat_reboot_setup(void);
+extern void pcisetup(void);
+extern void edhac_init(void *, void *, void *);
+extern void addrflt_init(void);
+
+struct lasat_misc lasat_misc_info[N_MACHTYPES] = {
+	{
+		.reset_reg	= (void *)KSEG1ADDR(0x1c840000),
+		.flash_wp_reg	= (void *)KSEG1ADDR(0x1c800000), 2
+	}, {
+		.reset_reg	= (void *)KSEG1ADDR(0x11080000),
+		.flash_wp_reg	= (void *)KSEG1ADDR(0x11000000), 6
+	}
+};
+
+struct lasat_misc *lasat_misc;
+
+#ifdef CONFIG_DS1603
+static struct ds_defs ds_defs[N_MACHTYPES] = {
+	{ (void *)DS1603_REG_100, (void *)DS1603_REG_100,
+		DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100,
+		DS1603_DATA_SHIFT_100, 0, 0 },
+	{ (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200,
+		DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200,
+		DS1603_DATA_READ_SHIFT_200, 1, 2000 }
+};
+#endif
+
+#ifdef CONFIG_PICVUE
+#include "picvue.h"
+static struct pvc_defs pvc_defs[N_MACHTYPES] = {
+	{ (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100,
+		PVC_E_100, PVC_RW_100, PVC_RS_100 },
+	{ (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200,
+		PVC_E_200, PVC_RW_200, PVC_RS_200 }
+};
+#endif
+
+static int lasat_panic_display(struct notifier_block *this,
+			     unsigned long event, void *ptr)
+{
+#ifdef CONFIG_PICVUE
+	unsigned char *string = ptr;
+	if (string == NULL)
+		string = "Kernel Panic";
+	pvc_dump_string(string);
+#endif
+	return NOTIFY_DONE;
+}
+
+static int lasat_panic_prom_monitor(struct notifier_block *this,
+			     unsigned long event, void *ptr)
+{
+	prom_monitor();
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block lasat_panic_block[] =
+{
+	{
+		.notifier_call	= lasat_panic_display,
+		.priority	= INT_MAX
+	}, {
+		.notifier_call	= lasat_panic_prom_monitor,
+		.priority	= INT_MIN
+	}
+};
+
+static void lasat_time_init(void)
+{
+	mips_hpt_frequency = lasat_board_info.li_cpu_hz / 2;
+}
+
+void __init plat_timer_setup(struct irqaction *irq)
+{
+	change_c0_status(ST0_IM, IE_IRQ0 | IE_IRQ5);
+}
+
+void __init plat_mem_setup(void)
+{
+	int i;
+	lasat_misc  = &lasat_misc_info[mips_machtype];
+#ifdef CONFIG_PICVUE
+	picvue = &pvc_defs[mips_machtype];
+#endif
+
+	/* Set up panic notifier */
+	for (i = 0; i < ARRAY_SIZE(lasat_panic_block); i++)
+		atomic_notifier_chain_register(&panic_notifier_list,
+				&lasat_panic_block[i]);
+
+	lasat_reboot_setup();
+
+	board_time_init = lasat_time_init;
+
+#ifdef CONFIG_DS1603
+	ds1603 = &ds_defs[mips_machtype];
+	rtc_mips_get_time = ds1603_read;
+	rtc_mips_set_time = ds1603_set;
+#endif
+
+#ifdef DYNAMIC_SERIAL_INIT
+	serial_init();
+#endif
+
+	pr_info("Lasat specific initialization complete\n");
+}

arch/mips/lasat/sysctl.h

+/*
+ * LASAT sysctl values
+ */
+
+#ifndef _LASAT_SYSCTL_H
+#define _LASAT_SYSCTL_H
+
+/* /proc/sys/lasat */
+enum {
+	LASAT_CPU_HZ = 1,
+	LASAT_BUS_HZ,
+	LASAT_MODEL,
+	LASAT_PRID,
+	LASAT_IPADDR,
+	LASAT_NETMASK,
+	LASAT_BCAST,
+	LASAT_PASSWORD,
+	LASAT_SBOOT,
+	LASAT_RTC,
+	LASAT_NAMESTR,
+	LASAT_TYPESTR,
+};
+
+#endif /* _LASAT_SYSCTL_H */

arch/mips/pci/Makefile

@@ -10,6 +10,7 @@ obj-y				+= pci.o
 obj-$(CONFIG_MIPS_BONITO64)	+= ops-bonito64.o
 obj-$(CONFIG_PCI_GT64XXX_PCI0)	+= ops-gt64xxx_pci0.o
 obj-$(CONFIG_MIPS_MSC)		+= ops-msc.o
+obj-$(CONFIG_MIPS_NILE4)	+= ops-nile4.o
 obj-$(CONFIG_MIPS_TX3927)	+= ops-tx3927.o
 obj-$(CONFIG_PCI_VR41XX)	+= ops-vr41xx.o pci-vr41xx.o
 obj-$(CONFIG_NEC_CMBVR4133)	+= fixup-vr4133.o
@@ -19,6 +20,7 @@ obj-$(CONFIG_MARKEINS)		+= ops-emma2rh.o pci-emma2rh.o fixup-emma2rh.o
 # These are still pretty much in the old state, watch, go blind.
 #
 obj-$(CONFIG_BASLER_EXCITE)	+= ops-titan.o pci-excite.o fixup-excite.o
+obj-$(CONFIG_LASAT)		+= pci-lasat.o
 obj-$(CONFIG_MIPS_ATLAS)	+= fixup-atlas.o
 obj-$(CONFIG_MIPS_COBALT)	+= fixup-cobalt.o
 obj-$(CONFIG_SOC_AU1500)	+= fixup-au1000.o ops-au1000.o

arch/mips/pci/ops-nile4.c

+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/bootinfo.h>
+
+#include <asm/lasat/lasat.h>
+#include <asm/gt64120.h>
+#include <asm/nile4.h>
+
+#define PCI_ACCESS_READ  0
+#define PCI_ACCESS_WRITE 1
+
+#define LO(reg) (reg / 4)
+#define HI(reg) (reg / 4 + 1)
+
+volatile unsigned long *const vrc_pciregs = (void *) Vrc5074_BASE;
+
+static DEFINE_SPINLOCK(nile4_pci_lock);
+
+static int nile4_pcibios_config_access(unsigned char access_type,
+	struct pci_bus *bus, unsigned int devfn, int where, u32 *val)
+{
+	unsigned char busnum = bus->number;
+	u32 adr, mask, err;
+
+	if ((busnum == 0) && (PCI_SLOT(devfn) > 8))
+		/* The addressing scheme chosen leaves room for just
+		 * 8 devices on the first busnum (besides the PCI
+		 * controller itself) */
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	if ((busnum == 0) && (devfn == PCI_DEVFN(0, 0))) {
+		/* Access controller registers directly */
+		if (access_type == PCI_ACCESS_WRITE) {
+			vrc_pciregs[(0x200 + where) >> 2] = *val;
+		} else {
+			*val = vrc_pciregs[(0x200 + where) >> 2];
+		}
+		return PCIBIOS_SUCCESSFUL;
+	}
+
+	/* Temporarily map PCI Window 1 to config space */
+	mask = vrc_pciregs[LO(NILE4_PCIINIT1)];
+	vrc_pciregs[LO(NILE4_PCIINIT1)] = 0x0000001a | (busnum ? 0x200 : 0);
+
+	/* Clear PCI Error register. This also clears the Error Type
+	 * bits in the Control register */
+	vrc_pciregs[LO(NILE4_PCIERR)] = 0;
+	vrc_pciregs[HI(NILE4_PCIERR)] = 0;
+
+	/* Setup address */
+	if (busnum == 0)
+		adr =
+		    KSEG1ADDR(PCI_WINDOW1) +
+		    ((1 << (PCI_SLOT(devfn) + 15)) | (PCI_FUNC(devfn) << 8)
+		     | (where & ~3));
+	else
+		adr = KSEG1ADDR(PCI_WINDOW1) | (busnum << 16) | (devfn << 8) |
+		      (where & ~3);
+
+	if (access_type == PCI_ACCESS_WRITE)
+		*(u32 *) adr = *val;
+	else
+		*val = *(u32 *) adr;
+
+	/* Check for master or target abort */
+	err = (vrc_pciregs[HI(NILE4_PCICTRL)] >> 5) & 0x7;
+
+	/* Restore PCI Window 1 */
+	vrc_pciregs[LO(NILE4_PCIINIT1)] = mask;
+
+	if (err)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int nile4_pcibios_read(struct pci_bus *bus, unsigned int devfn,
+	int where, int size, u32 *val)
+{
+	unsigned long flags;
+	u32 data = 0;
+	int err;
+
+	if ((size == 2) && (where & 1))
+		return PCIBIOS_BAD_REGISTER_NUMBER;
+	else if ((size == 4) && (where & 3))
+		return PCIBIOS_BAD_REGISTER_NUMBER;
+
+	spin_lock_irqsave(&nile4_pci_lock, flags);
+	err = nile4_pcibios_config_access(PCI_ACCESS_READ, bus, devfn, where,
+					&data);
+	spin_unlock_irqrestore(&nile4_pci_lock, flags);
+
+	if (err)
+		return err;
+
+	if (size == 1)
+		*val = (data >> ((where & 3) << 3)) & 0xff;
+	else if (size == 2)
+		*val = (data >> ((where & 3) << 3)) & 0xffff;
+	else
+		*val = data;
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int nile4_pcibios_write(struct pci_bus *bus, unsigned int devfn,
+	int where, int size, u32 val)
+{
+	unsigned long flags;
+	u32 data = 0;
+	int err;
+
+	if ((size == 2) && (where & 1))
+		return PCIBIOS_BAD_REGISTER_NUMBER;
+	else if ((size == 4) && (where & 3))
+		return PCIBIOS_BAD_REGISTER_NUMBER;
+
+	spin_lock_irqsave(&nile4_pci_lock, flags);
+	err = nile4_pcibios_config_access(PCI_ACCESS_READ, bus, devfn, where,
+					  &data);
+	spin_unlock_irqrestore(&nile4_pci_lock, flags);
+
+	if (err)
+		return err;
+
+	if (size == 1)
+		data = (data & ~(0xff << ((where & 3) << 3))) |
+		    (val << ((where & 3) << 3));
+	else if (size == 2)
+		data = (data & ~(0xffff << ((where & 3) << 3))) |
+		    (val << ((where & 3) << 3));
+	else
+		data = val;
+
+	if (nile4_pcibios_config_access
+	    (PCI_ACCESS_WRITE, bus, devfn, where, &data))
+		return -1;
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops nile4_pci_ops = {
+	.read = nile4_pcibios_read,
+	.write = nile4_pcibios_write,
+};

arch/mips/pci/pci-lasat.c

+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000, 2001, 04 Keith M Wesolowski
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <asm/bootinfo.h>
+
+extern struct pci_ops nile4_pci_ops;
+extern struct pci_ops gt64xxx_pci0_ops;
+static struct resource lasat_pci_mem_resource = {
+	.name	= "LASAT PCI MEM",
+	.start	= 0x18000000,
+	.end	= 0x19ffffff,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct resource lasat_pci_io_resource = {
+	.name	= "LASAT PCI IO",
+	.start	= 0x1a000000,
+	.end	= 0x1bffffff,
+	.flags	= IORESOURCE_IO,
+};
+
+static struct pci_controller lasat_pci_controller = {
+	.mem_resource	= &lasat_pci_mem_resource,
+	.io_resource	= &lasat_pci_io_resource,
+};
+
+static int __init lasat_pci_setup(void)
+{
+	printk(KERN_DEBUG "PCI: starting\n");
+
+	switch (mips_machtype) {
+	case MACH_LASAT_100:
+		lasat_pci_controller.pci_ops = &gt64xxx_pci0_ops;
+		break;
+	case MACH_LASAT_200:
+		lasat_pci_controller.pci_ops = &nile4_pci_ops;
+		break;
+	default:
+		panic("pcibios_init: mips_machtype incorrect");
+	}
+
+	register_pci_controller(&lasat_pci_controller);
+
+	return 0;
+}
+
+arch_initcall(lasat_pci_setup);
+
+#define LASATINT_ETH1   0
+#define LASATINT_ETH0   1
+#define LASATINT_HDC    2
+#define LASATINT_COMP   3
+#define LASATINT_HDLC   4
+#define LASATINT_PCIA   5
+#define LASATINT_PCIB   6
+#define LASATINT_PCIC   7
+#define LASATINT_PCID   8
+
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	switch (slot) {
+	case 1:
+	case 2:
+	case 3:
+		return LASATINT_PCIA + (((slot-1) + (pin-1)) % 4);
+	case 4:
+		return LASATINT_ETH1;   /* Ethernet 1 (LAN 2) */
+	case 5:
+		return LASATINT_ETH0;   /* Ethernet 0 (LAN 1) */
+	case 6:
+		return LASATINT_HDC;    /* IDE controller */
+	default:
+		return 0xff;            /* Illegal */
+	}
+
+	return -1;
+}
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+	return 0;
+}

include/asm-mips/bootinfo.h

@@ -174,6 +174,13 @@
 #define MACH_GROUP_HP_LJ	20	/* Hewlett Packard LaserJet	*/
 #define  MACH_HP_LASERJET	1
 
+/*
+ * Valid machtype for group LASAT
+ */
+#define MACH_GROUP_LASAT       21
+#define  MACH_LASAT_100		0	/* Masquerade II/SP100/SP50/SP25 */
+#define  MACH_LASAT_200		1	/* Masquerade PRO/SP200 */
+
 /*
  * Valid machtype for group TITAN
  */

include/asm-mips/lasat/ds1603.h

+#include <asm/addrspace.h>
+
+/* Lasat 100	*/
+#define DS1603_REG_100		(KSEG1ADDR(0x1c810000))
+#define DS1603_RST_100		(1 << 2)
+#define DS1603_CLK_100		(1 << 0)
+#define DS1603_DATA_SHIFT_100	1
+#define DS1603_DATA_100		(1 << DS1603_DATA_SHIFT_100)
+
+/* Lasat 200	*/
+#define DS1603_REG_200		(KSEG1ADDR(0x11000000))
+#define DS1603_RST_200		(1 << 3)
+#define DS1603_CLK_200		(1 << 4)
+#define DS1603_DATA_200		(1 << 5)
+
+#define DS1603_DATA_REG_200		(DS1603_REG_200 + 0x10000)
+#define DS1603_DATA_READ_SHIFT_200	9
+#define DS1603_DATA_READ_200	(1 << DS1603_DATA_READ_SHIFT_200)

include/asm-mips/lasat/eeprom.h

+#include <asm/addrspace.h>
+
+/* lasat 100 */
+#define AT93C_REG_100               KSEG1ADDR(0x1c810000)
+#define AT93C_RDATA_REG_100         AT93C_REG_100
+#define AT93C_RDATA_SHIFT_100       4
+#define AT93C_WDATA_SHIFT_100       4
+#define AT93C_CS_M_100              (1 << 5)
+#define AT93C_CLK_M_100             (1 << 3)
+
+/* lasat 200 */
+#define AT93C_REG_200		KSEG1ADDR(0x11000000)
+#define AT93C_RDATA_REG_200	(AT93C_REG_200+0x10000)
+#define AT93C_RDATA_SHIFT_200	8
+#define AT93C_WDATA_SHIFT_200	2
+#define AT93C_CS_M_200		(1 << 0)
+#define AT93C_CLK_M_200		(1 << 1)

include/asm-mips/lasat/head.h

+/*
+ * Image header stuff
+ */
+#ifndef _HEAD_H
+#define _HEAD_H
+
+#define LASAT_K_MAGIC0_VAL	0xfedeabba
+#define LASAT_K_MAGIC1_VAL	0x00bedead
+
+#ifndef _LANGUAGE_ASSEMBLY
+#include <linux/types.h>
+struct bootloader_header {
+	u32 magic[2];
+	u32 version;
+	u32 image_start;
+	u32 image_size;
+	u32 kernel_start;
+	u32 kernel_entry;
+};
+#endif
+
+#endif /* _HEAD_H */

include/asm-mips/lasat/lasat.h

+/*
+ * lasat.h
+ *
+ * Thomas Horsten <thh@lasat.com>
+ * Copyright (C) 2000 LASAT Networks A/S.
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Configuration for LASAT boards, loads the appropriate include files.
+ */
+#ifndef _LASAT_H
+#define _LASAT_H
+
+#ifndef _LANGUAGE_ASSEMBLY
+
+extern struct lasat_misc {
+	volatile u32 *reset_reg;
+	volatile u32 *flash_wp_reg;
+	u32 flash_wp_bit;
+} *lasat_misc;
+
+enum lasat_mtdparts {
+	LASAT_MTD_BOOTLOADER,
+	LASAT_MTD_SERVICE,
+	LASAT_MTD_NORMAL,
+	LASAT_MTD_CONFIG,
+	LASAT_MTD_FS,
+	LASAT_MTD_LAST
+};
+
+/*
+ * The format of the data record in the EEPROM.
+ * See Documentation/LASAT/eeprom.txt for a detailed description
+ * of the fields in this struct, and the LASAT Hardware Configuration
+ * field specification for a detailed description of the config
+ * field.
+ */
+#include <linux/types.h>
+
+#define LASAT_EEPROM_VERSION 7
+struct lasat_eeprom_struct {
+	unsigned int  version;
+	unsigned int  cfg[3];
+	unsigned char hwaddr[6];
+	unsigned char print_partno[12];
+	unsigned char term0;
+	unsigned char print_serial[14];
+	unsigned char term1;
+	unsigned char prod_partno[12];
+	unsigned char term2;
+	unsigned char prod_serial[14];
+	unsigned char term3;
+	unsigned char passwd_hash[16];
+	unsigned char pwdnull;
+	unsigned char vendid;
+	unsigned char ts_ref;
+	unsigned char ts_signoff;
+	unsigned char reserved[11];
+	unsigned char debugaccess;
+	unsigned short prid;
+	unsigned int  serviceflag;
+	unsigned int  ipaddr;
+	unsigned int  netmask;
+	unsigned int  crc32;
+};
+
+struct lasat_eeprom_struct_pre7 {
+	unsigned int  version;
+	unsigned int  flags[3];
+	unsigned char hwaddr0[6];
+	unsigned char hwaddr1[6];
+	unsigned char print_partno[9];
+	unsigned char term0;
+	unsigned char print_serial[14];
+	unsigned char term1;
+	unsigned char prod_partno[9];
+	unsigned char term2;
+	unsigned char prod_serial[14];
+	unsigned char term3;
+	unsigned char passwd_hash[24];
+	unsigned char pwdnull;
+	unsigned char vendor;
+	unsigned char ts_ref;
+	unsigned char ts_signoff;
+	unsigned char reserved[6];
+	unsigned int  writecount;
+	unsigned int  ipaddr;
+	unsigned int  netmask;
+	unsigned int  crc32;
+};
+
+/* Configuration descriptor encoding - see the doc for details */
+
+#define LASAT_W0_DSCTYPE(v)		(((v))         & 0xf)
+#define LASAT_W0_BMID(v)		(((v) >> 0x04) & 0xf)
+#define LASAT_W0_CPUTYPE(v)		(((v) >> 0x08) & 0xf)
+#define LASAT_W0_BUSSPEED(v)		(((v) >> 0x0c) & 0xf)
+#define LASAT_W0_CPUCLK(v)		(((v) >> 0x10) & 0xf)
+#define LASAT_W0_SDRAMBANKSZ(v)		(((v) >> 0x14) & 0xf)
+#define LASAT_W0_SDRAMBANKS(v)		(((v) >> 0x18) & 0xf)
+#define LASAT_W0_L2CACHE(v)		(((v) >> 0x1c) & 0xf)
+
+#define LASAT_W1_EDHAC(v)		(((v))         & 0xf)
+#define LASAT_W1_HIFN(v)		(((v) >> 0x04) & 0x1)
+#define LASAT_W1_ISDN(v)		(((v) >> 0x05) & 0x1)
+#define LASAT_W1_IDE(v)			(((v) >> 0x06) & 0x1)
+#define LASAT_W1_HDLC(v)		(((v) >> 0x07) & 0x1)
+#define LASAT_W1_USVERSION(v)		(((v) >> 0x08) & 0x1)
+#define LASAT_W1_4MACS(v)		(((v) >> 0x09) & 0x1)
+#define LASAT_W1_EXTSERIAL(v)		(((v) >> 0x0a) & 0x1)
+#define LASAT_W1_FLASHSIZE(v)		(((v) >> 0x0c) & 0xf)
+#define LASAT_W1_PCISLOTS(v)		(((v) >> 0x10) & 0xf)
+#define LASAT_W1_PCI1OPT(v)		(((v) >> 0x14) & 0xf)
+#define LASAT_W1_PCI2OPT(v)		(((v) >> 0x18) & 0xf)
+#define LASAT_W1_PCI3OPT(v)		(((v) >> 0x1c) & 0xf)
+
+/* Routines specific to LASAT boards */
+
+#define LASAT_BMID_MASQUERADE2		0
+#define LASAT_BMID_MASQUERADEPRO	1
+#define LASAT_BMID_SAFEPIPE25		2
+#define LASAT_BMID_SAFEPIPE50		3
+#define LASAT_BMID_SAFEPIPE100		4
+#define LASAT_BMID_SAFEPIPE5000		5
+#define LASAT_BMID_SAFEPIPE7000		6
+#define LASAT_BMID_SAFEPIPE1000		7
+#if 0
+#define LASAT_BMID_SAFEPIPE30		7
+#define LASAT_BMID_SAFEPIPE5100		8
+#define LASAT_BMID_SAFEPIPE7100		9
+#endif
+#define LASAT_BMID_UNKNOWN		0xf
+#define LASAT_MAX_BMID_NAMES		9   /* no larger than 15! */
+
+#define LASAT_HAS_EDHAC			(1 << 0)
+#define LASAT_EDHAC_FAST		(1 << 1)
+#define LASAT_HAS_EADI			(1 << 2)
+#define LASAT_HAS_HIFN			(1 << 3)
+#define LASAT_HAS_ISDN			(1 << 4)
+#define LASAT_HAS_LEASEDLINE_IF		(1 << 5)
+#define LASAT_HAS_HDC			(1 << 6)
+
+#define LASAT_PRID_MASQUERADE2		0
+#define LASAT_PRID_MASQUERADEPRO	1
+#define LASAT_PRID_SAFEPIPE25		2
+#define LASAT_PRID_SAFEPIPE50		3
+#define LASAT_PRID_SAFEPIPE100		4
+#define LASAT_PRID_SAFEPIPE5000		5
+#define LASAT_PRID_SAFEPIPE7000		6
+#define LASAT_PRID_SAFEPIPE30		7
+#define LASAT_PRID_SAFEPIPE5100		8
+#define LASAT_PRID_SAFEPIPE7100		9
+
+#define LASAT_PRID_SAFEPIPE1110		10
+#define LASAT_PRID_SAFEPIPE3020		11
+#define LASAT_PRID_SAFEPIPE3030		12
+#define LASAT_PRID_SAFEPIPE5020		13
+#define LASAT_PRID_SAFEPIPE5030		14
+#define LASAT_PRID_SAFEPIPE1120		15
+#define LASAT_PRID_SAFEPIPE1130		16
+#define LASAT_PRID_SAFEPIPE6010		17
+#define LASAT_PRID_SAFEPIPE6110		18
+#define LASAT_PRID_SAFEPIPE6210		19
+#define LASAT_PRID_SAFEPIPE1020		20
+#define LASAT_PRID_SAFEPIPE1040		21
+#define LASAT_PRID_SAFEPIPE1060		22
+
+struct lasat_info {
+	unsigned int  li_cpu_hz;
+	unsigned int  li_bus_hz;
+	unsigned int  li_bmid;
+	unsigned int  li_memsize;
+	unsigned int  li_flash_size;
+	unsigned int  li_prid;
+	unsigned char li_bmstr[16];
+	unsigned char li_namestr[32];
+	unsigned char li_typestr[16];
+	/* Info on the Flash layout */
+	unsigned int  li_flash_base;
+	unsigned long li_flashpart_base[LASAT_MTD_LAST];
+	unsigned long li_flashpart_size[LASAT_MTD_LAST];
+	struct lasat_eeprom_struct li_eeprom_info;
+	unsigned int  li_eeprom_upgrade_version;
+	unsigned int  li_debugaccess;
+};
+
+extern struct lasat_info lasat_board_info;
+
+static inline unsigned long lasat_flash_partition_start(int partno)
+{
+	if (partno < 0 || partno >= LASAT_MTD_LAST)
+		return 0;
+
+	return lasat_board_info.li_flashpart_base[partno];
+}
+
+static inline unsigned long lasat_flash_partition_size(int partno)
+{
+	if (partno < 0 || partno >= LASAT_MTD_LAST)
+		return 0;
+
+	return lasat_board_info.li_flashpart_size[partno];
+}
+
+/* Called from setup() to initialize the global board_info struct */
+extern int lasat_init_board_info(void);
+
+/* Write the modified EEPROM info struct */
+extern void lasat_write_eeprom_info(void);
+
+#define N_MACHTYPES		2
+/* for calibration of delays */
+
+/* the lasat_ndelay function is necessary because it is used at an
+ * early stage of the boot process where ndelay is not calibrated.
+ * It is used for the bit-banging rtc and eeprom drivers */
+
+#include <linux/delay.h>
+
+/* calculating with the slowest board with 100 MHz clock */
+#define LASAT_100_DIVIDER 20
+/* All 200's run at 250 MHz clock */
+#define LASAT_200_DIVIDER 8
+
+extern unsigned int lasat_ndelay_divider;
+
+static inline void lasat_ndelay(unsigned int ns)
+{
+	__delay(ns / lasat_ndelay_divider);
+}
+
+#endif /* !defined (_LANGUAGE_ASSEMBLY) */
+
+#define LASAT_SERVICEMODE_MAGIC_1     0xdeadbeef
+#define LASAT_SERVICEMODE_MAGIC_2     0xfedeabba
+
+/* Lasat 100 boards */
+#define LASAT_GT_BASE           (KSEG1ADDR(0x14000000))
+
+/* Lasat 200 boards */
+#define Vrc5074_PHYS_BASE       0x1fa00000
+#define Vrc5074_BASE            (KSEG1ADDR(Vrc5074_PHYS_BASE))
+#define PCI_WINDOW1             0x1a000000
+
+#endif /* _LASAT_H */

include/asm-mips/lasat/lasatint.h

+#define LASATINT_END 16
+
+/* lasat 100 */
+#define LASAT_INT_STATUS_REG_100	(KSEG1ADDR(0x1c880000))
+#define LASAT_INT_MASK_REG_100		(KSEG1ADDR(0x1c890000))
+#define LASATINT_MASK_SHIFT_100		0
+
+/* lasat 200 */
+#define LASAT_INT_STATUS_REG_200	(KSEG1ADDR(0x1104003c))
+#define LASAT_INT_MASK_REG_200		(KSEG1ADDR(0x1104003c))
+#define LASATINT_MASK_SHIFT_200		16
+

include/asm-mips/lasat/picvue.h

+/* Lasat 100 */
+#define PVC_REG_100		KSEG1ADDR(0x1c820000)
+#define PVC_DATA_SHIFT_100	0
+#define PVC_DATA_M_100		0xFF
+#define PVC_E_100		(1 << 8)
+#define PVC_RW_100		(1 << 9)
+#define PVC_RS_100		(1 << 10)
+
+/* Lasat 200 */
+#define PVC_REG_200		KSEG1ADDR(0x11000000)
+#define PVC_DATA_SHIFT_200	24
+#define PVC_DATA_M_200		(0xFF << PVC_DATA_SHIFT_200)
+#define PVC_E_200		(1 << 16)
+#define PVC_RW_200		(1 << 17)
+#define PVC_RS_200		(1 << 18)

include/asm-mips/lasat/serial.h

+#include <asm/lasat/lasat.h>
+
+/* Lasat 100 boards serial configuration */
+#define LASAT_BASE_BAUD_100 		(7372800 / 16)
+#define LASAT_UART_REGS_BASE_100	0x1c8b0000
+#define LASAT_UART_REGS_SHIFT_100	2
+#define LASATINT_UART_100		8
+
+/* * LASAT 200 boards serial configuration */
+#define LASAT_BASE_BAUD_200		(100000000 / 16 / 12)
+#define LASAT_UART_REGS_BASE_200	(Vrc5074_PHYS_BASE + 0x0300)
+#define LASAT_UART_REGS_SHIFT_200	3
+#define LASATINT_UART_200		13

include/asm-mips/mach-lasat/mach-gt64120.h

+/*
+ *  This is a direct copy of the ev96100.h file, with a global
+ * search and replace.  The numbers are the same.
+ *
+ *  The reason I'm duplicating this is so that the 64120/96100
+ * defines won't be confusing in the source code.
+ */
+#ifndef _ASM_GT64120_LASAT_GT64120_DEP_H
+#define _ASM_GT64120_LASAT_GT64120_DEP_H
+
+/*
+ *   GT64120 config space base address on Lasat 100
+ */
+#define GT64120_BASE	(KSEG1ADDR(0x14000000))
+
+/*
+ *   PCI Bus allocation
+ *
+ *   (Guessing ...)
+ */
+#define GT_PCI_MEM_BASE	0x12000000UL
+#define GT_PCI_MEM_SIZE	0x02000000UL
+#define GT_PCI_IO_BASE	0x10000000UL
+#define GT_PCI_IO_SIZE	0x02000000UL
+#define GT_ISA_IO_BASE	PCI_IO_BASE
+
+#endif /* _ASM_GT64120_LASAT_GT64120_DEP_H */