imported original firmware WRT54GL_v4.30.11_11_US

14 files changed, 4771 insertions, 0 deletions

diff --git a/release/src/linux/linux/arch/mips/baget/Makefile b/release/src/linux/linux/arch/mips/baget/Makefile
new file mode 100644
index 00000000..78490fe3
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/Makefile
@@ -0,0 +1,64 @@
+#
+# Makefile for the Baget specific kernel interface routines
+# under Linux.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+all: baget.a
+
+O_TARGET := baget.a
+
+export-objs		:= vacserial.o vacrtc.o
+obj-y			:= baget.o print.o setup.o time.o irq.o bagetIRQ.o \
+			   reset.o
+obj-$(CONFIG_SERIAL)	+= vacserial.o
+obj-$(CONFIG_VAC_RTC)	+= vacrtc.o
+
+bagetIRQ.o : bagetIRQ.S
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+
+##################### Baget Loader stuff ########################
+
+image: ../../../vmlinux
+	cp -f $< $@
+
+image.bin: image
+	$(OBJCOPY) -O binary $< $@
+
+ramdisk.bin:
+	echo "Dummy ramdisk used. Provide your own if needed !" > $@
+
+dummy.c:
+	touch $@
+
+dummy.o: dummy.c image.bin ramdisk.bin
+	$(CC) $(CFLAGS) -c -o $@ $<
+	$(OBJCOPY) --add-section=.vmlinux=image.bin \
+                   --add-section=.ramdisk=ramdisk.bin   $@
+
+balo.h: image
+	$(NM) $< | awk ' \
+	BEGIN               { printf "/* DO NOT EDIT THIS FILE */\n" }    \
+	/_ftext/            { printf "#define LOADADDR 0x%s\n", $$1     } \
+	/kernel_entry/      { printf "#define START 0x%s\n", $$1 }        \
+	/balo_ramdisk_base/ { printf "#define RAMDISK_BASE 0x%s\n", $$1 } \
+	/balo_ramdisk_size/ { printf "#define RAMDISK_SIZE 0x%s\n", $$1 } \
+                       ' > $@
+balo.o:   balo.c balo.h
+	$(CC) $(CFLAGS) -c $<
+
+balo_supp.o: balo_supp.S
+	$(CC) $(CFLAGS) -c $<
+
+balo:   balo.o dummy.o balo_supp.o print.o
+	$(LD) $(LDFLAGS) -T ld.script.balo -o $@ $^
+
+clean:
+	rm -f balo balo.h dummy.c image image.bin
+
+include $(TOPDIR)/Rules.make
diff --git a/release/src/linux/linux/arch/mips/baget/baget.c b/release/src/linux/linux/arch/mips/baget/baget.c
new file mode 100644
index 00000000..c1b64a99
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/baget.c
@@ -0,0 +1,97 @@
+/*
+ * baget.c: Baget low level stuff
+ *
+ * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
+ *
+ */
+#include <stdarg.h>
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <asm/system.h>
+#include <asm/bootinfo.h>
+#include <asm/mipsregs.h>
+#include <asm/pgtable.h>
+#include <asm/pgalloc.h>
+
+#include <asm/baget/baget.h>
+
+/*
+ *  Following code is based on routines from 'mm/vmalloc.c'
+ *  Additional parameters  ioaddr  is needed to iterate across real I/O address.
+ */
+static inline int alloc_area_pte(pte_t * pte, unsigned long address,
+				 unsigned long size, unsigned long ioaddr)
+{
+        unsigned long end;
+
+        address &= ~PMD_MASK;
+        end = address + size;
+        if (end > PMD_SIZE)
+                end = PMD_SIZE;
+        while (address < end) {
+                unsigned long page;
+                if (!pte_none(*pte))
+                        printk("kseg2_alloc_io: page already exists\n");
+		/*
+		 *  For MIPS looks pretty to have transparent mapping
+		 *  for KSEG2 areas  -- user can't access one, and no
+		 *  problems with  virtual <--> physical  translation.
+		 */
+                page = ioaddr & PAGE_MASK;
+
+                set_pte(pte, __pte(page | pgprot_val(PAGE_USERIO) |
+				  _PAGE_GLOBAL | __READABLE | __WRITEABLE));
+                address += PAGE_SIZE;
+		ioaddr  += PAGE_SIZE;
+                pte++;
+        }
+        return 0;
+}
+
+static inline int alloc_area_pmd(pmd_t * pmd, unsigned long address,
+				 unsigned long size, unsigned long ioaddr)
+{
+        unsigned long end;
+
+        address &= ~PGDIR_MASK;
+        end = address + size;
+        if (end > PGDIR_SIZE)
+                end = PGDIR_SIZE;
+        while (address < end) {
+                pte_t * pte = pte_alloc_kernel(pmd, address);
+                if (!pte)
+                        return -ENOMEM;
+                if (alloc_area_pte(pte, address, end - address, ioaddr))
+                        return -ENOMEM;
+                address = (address + PMD_SIZE) & PMD_MASK;
+		ioaddr  += PMD_SIZE;
+                pmd++;
+        }
+        return 0;
+}
+
+int kseg2_alloc_io (unsigned long address, unsigned long size)
+{
+        pgd_t * dir;
+        unsigned long end = address + size;
+
+        dir = pgd_offset_k(address);
+        flush_cache_all();
+        while (address < end) {
+                pmd_t *pmd;
+                pgd_t olddir = *dir;
+
+                pmd = pmd_alloc_kernel(dir, address);
+                if (!pmd)
+                        return -ENOMEM;
+                if (alloc_area_pmd(pmd, address, end - address, address))
+                        return -ENOMEM;
+                if (pgd_val(olddir) != pgd_val(*dir))
+                        set_pgdir(address, *dir);
+                address = (address + PGDIR_SIZE) & PGDIR_MASK;
+                dir++;
+        }
+        flush_tlb_all();
+        return 0;
+}
diff --git a/release/src/linux/linux/arch/mips/baget/bagetIRQ.S b/release/src/linux/linux/arch/mips/baget/bagetIRQ.S
new file mode 100644
index 00000000..da066d55
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/bagetIRQ.S
@@ -0,0 +1,96 @@
+/*
+ * bagetIRQ.S: Interrupt exception dispatch code for Baget/MIPS
+ *
+ * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
+ */
+#include <asm/asm.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+#include <asm/addrspace.h>
+
+	.text
+	.set    mips1
+	.set    reorder
+	.set    macro
+	.set    noat
+	.align	5
+
+NESTED(bagetIRQ, PT_SIZE, sp)
+	SAVE_ALL
+	CLI				# Important: mark KERNEL mode !
+
+	la      a1, baget_interrupt
+	.set	push
+	.set    noreorder
+	jal	a1
+	.set    pop
+	move	a0, sp
+
+	la      a1, ret_from_irq
+	jr	a1
+END(bagetIRQ)
+
+#define DBE_HANDLER       0x1C
+
+NESTED(try_read, PT_SIZE, sp)
+	mfc0	t3, CP0_STATUS		# save flags and
+	CLI				#  disable interrupts
+
+	li	t0, KSEG2
+	sltu    t1, t0, a0              # Is it KSEG2 address ?
+	beqz	t1, mapped              # No - already mapped !
+
+	move    t0, a0
+	ori	t0, 0xfff
+	xori    t0, 0xfff               # round address to page
+
+	ori     t1, t0, 0xf00           # prepare EntryLo (N,V,D,G)
+
+	mfc0    t2,   CP0_ENTRYHI       # save ASID value
+	mtc0	zero, CP0_INDEX
+	mtc0	t0,   CP0_ENTRYHI       # Load MMU values ...
+	mtc0    t1,   CP0_ENTRYLO0
+	nop                             # let it understand
+	nop
+	tlbwi				# ... and write ones
+	nop
+	nop
+	mtc0    t2,  CP0_ENTRYHI
+
+mapped:
+	la	t0, exception_handlers
+	lw	t1, DBE_HANDLER(t0)	# save real handler
+	la	t2, dbe_handler
+	sw	t2, DBE_HANDLER(t0)	# set temporary local handler
+	li	v0, -1			# default (failure) value
+
+	li	t2, 1
+	beq	t2, a1, 1f
+	li	t2, 2
+	beq	t2, a1, 2f
+	li	t2, 4
+	beq	t2, a1, 4f
+	b	out
+
+1:	lbu	v0, (a0)		# byte
+	b	out
+
+2:	lhu	v0, (a0)		# short
+	b	out
+
+4:	lw	v0, (a0)		# word
+
+out:
+	sw	t1, DBE_HANDLER(t0)	# restore real handler
+	mtc0	t3, CP0_STATUS		# restore CPU flags
+	jr	ra
+
+dbe_handler:
+	li	v0, -1			# mark our failure
+	.set	push
+	.set	noreorder
+	b	out			# "no problems !"
+	rfe				#   return from trap
+	.set	pop
+END(try_read)
diff --git a/release/src/linux/linux/arch/mips/baget/balo.c b/release/src/linux/linux/arch/mips/baget/balo.c
new file mode 100644
index 00000000..f198fd23
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/balo.c
@@ -0,0 +1,190 @@
+/*
+ * balo.c: BAget LOader
+ *
+ * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
+ */
+#include <linux/kernel.h>
+#include <asm/system.h>
+#include <asm/ptrace.h>
+#include <asm/addrspace.h>
+
+#include <asm/baget/baget.h>
+
+#include "balo.h"  /* Includes some kernel symbol values */
+
+static char *banner = "\nBaget Linux Loader v0.2\n";
+
+static void mem_move (long *to, long *from, long size)
+{
+	while (size > 0) {
+		*to++ = *from++;
+		size -= sizeof(long);
+	}
+}
+
+static volatile int *mem_limit     = (volatile int*)KSEG1;
+static volatile int *mem_limit_dbe = (volatile int*)KSEG1;
+
+static int can_write (volatile int* p) {
+        return p <  (int*)(KSEG1+BALO_OFFSET) ||
+               p >= (int*)(KSEG1+BALO_OFFSET+BALO_SIZE);
+}
+
+static volatile enum balo_state_enum {
+	BALO_INIT,
+	MEM_INIT,
+	MEM_PROBE,
+	START_KERNEL
+} balo_state = BALO_INIT;
+
+
+static __inline__ void reset_and_jump(int start, int mem_upper)
+{
+	unsigned long tmp;
+
+	__asm__ __volatile__(
+                ".set\tnoreorder\n\t"
+                ".set\tnoat\n\t"
+                "mfc0\t$1, $12\n\t"
+                "nop\n\t"
+                "nop\n\t"
+                "nop\n\t"
+                "ori\t$1, $1, 0xff00\n\t"
+                "xori\t$1, $1, 0xff00\n\t"
+                "mtc0\t$1, $12\n\t"
+                "nop\n\t"
+                "nop\n\t"
+                "nop\n\t"
+		"move\t%0, %2\n\t"
+		"jr\t%1\n\t"
+		"nop\n\t"
+                ".set\tat\n\t"
+                ".set\treorder"
+                : "=&r" (tmp)
+                : "Ir" (start), "Ir" (mem_upper)
+                : "memory");
+}
+
+static void start_kernel(void)
+{
+	extern char _vmlinux_start, _vmlinux_end;
+	extern char _ramdisk_start, _ramdisk_end;
+
+        outs( "Relocating Linux... " );
+	mem_move((long*)KSEG0, (long*)&_vmlinux_start,
+                 &_vmlinux_end-&_vmlinux_start);
+	outs("done.\n");
+
+	if (&_ramdisk_start != &_ramdisk_end) {
+		outs("Setting up RAMDISK... ");
+		if (*(unsigned long*)RAMDISK_BASE != 0xBA) {
+			outs("Bad RAMDISK_BASE signature in system image.\n");
+                        balo_hungup();
+		}
+		*(unsigned long*)RAMDISK_BASE = (unsigned long)&_ramdisk_start;
+		*(unsigned long*)RAMDISK_SIZE = &_ramdisk_end -&_ramdisk_start;
+		outs("done.\n");
+	}
+
+	{
+		extern void flush_cache_low(int isize, int dsize);
+		flush_cache_low(256*1024,256*1024);
+	}
+
+        balo_printf( "Kernel entry: %x\n\n", START);
+	balo_state = START_KERNEL;
+	reset_and_jump(START, (int)mem_limit-KSEG1+KSEG0);
+}
+
+
+static void mem_probe(void)
+{
+	balo_state = MEM_PROBE;
+	outs("RAM: <");
+	while(mem_limit < mem_limit_dbe) {
+                if (can_write(mem_limit) && *mem_limit != 0)
+                        break; /* cycle found */
+		outc('.');
+		if (can_write(mem_limit))
+                        *mem_limit = -1; /* mark */
+                mem_limit += 0x40000;
+	}
+	outs(">\n");
+	start_kernel();
+}
+
+volatile unsigned int int_cause;
+volatile unsigned int epc;
+volatile unsigned int badvaddr;
+
+static void print_regs(void)
+{
+        balo_printf("CAUSE=%x EPC=%x BADVADDR=%x\n",
+                    int_cause, epc, badvaddr);
+}
+
+void int_handler(struct pt_regs *regs)
+{
+        switch (balo_state) {
+	case BALO_INIT:
+                balo_printf("\nBALO: trap in balo itself.\n");
+		print_regs();
+                balo_hungup();
+		break;
+	case MEM_INIT:
+                if ((int_cause & CAUSE_MASK) != CAUSE_DBE) {
+                        balo_printf("\nBALO: unexpected trap during memory init.\n");
+			print_regs();
+                        balo_hungup();
+		} else {
+			mem_probe();
+		}
+		break;
+	case MEM_PROBE:
+                balo_printf("\nBALO: unexpected trap during memory probe.\n");
+		print_regs();
+                balo_hungup();
+		break;
+	case START_KERNEL:
+                balo_printf("\nBALO: unexpected kernel trap.\n");
+		print_regs();
+                balo_hungup();
+		break;
+	}
+        balo_printf("\nBALO: unexpected return from handler.\n");
+	print_regs();
+        balo_hungup();
+}
+
+static void mem_init(void)
+{
+	balo_state = MEM_INIT;
+
+	while(1) {
+		*mem_limit_dbe;
+		if (can_write(mem_limit_dbe))
+			*mem_limit_dbe = 0;
+
+		mem_limit_dbe += 0x40000; /* +1M */
+	}
+        /*  no return: must go to int_handler */
+}
+
+void balo_entry(void)
+{
+        extern void except_vec3_generic(void);
+
+	cli();
+	outs(banner);
+        memcpy((void *)(KSEG0 + 0x80), &except_vec3_generic, 0x80);
+	mem_init();
+}
+
+/* Needed for linking */
+
+int vsprintf(char *buf, const char *fmt, va_list arg)
+{
+	outs("BALO: vsprintf called.\n");
+	balo_hungup();
+	return 0;
+}
diff --git a/release/src/linux/linux/arch/mips/baget/balo_supp.S b/release/src/linux/linux/arch/mips/baget/balo_supp.S
new file mode 100644
index 00000000..b2d935d7
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/balo_supp.S
@@ -0,0 +1,142 @@
+/*
+ * balo_supp.S: BAget Loader supplement
+ *
+ * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
+ */
+#include <asm/asm.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+
+	.text
+	.set    mips1
+
+	/* General exception vector. */
+NESTED(except_vec3_generic, 0, sp)
+	.set    noat
+	la	k0, except_vec3_generic_code
+	jr	k0
+END(except_vec3_generic)
+
+NESTED(except_vec3_generic_code, 0, sp)
+	SAVE_ALL
+	mfc0	k1, CP0_CAUSE
+	la	k0, int_cause
+	sw      k1, (k0)
+
+        mfc0    k1, CP0_EPC
+        la      k0, epc
+        sw      k1, (k0)
+
+        mfc0    k1, CP0_BADVADDR
+        la      k0, badvaddr
+        sw      k1, (k0)
+
+	la	k0, int_handler
+        .set    noreorder
+	jal	k0
+        .set    reorder
+	move	a0, sp
+
+        RESTORE_ALL_AND_RET
+END(except_vec3_generic_code)
+
+        .align  5
+NESTED(flush_cache_low, PT_SIZE, sp)
+        .set    at
+        .set    macro
+        .set    noreorder
+
+        move    t1, a0  # ISIZE
+        move    t2, a1  # DSIZE
+
+        mfc0    t3, CP0_STATUS       # Save the status register.
+        mtc0    zero, CP0_STATUS     # Disable interrupts.
+        la      v0, 1f
+        or      v0, KSEG1            # Run uncached.
+        j       v0
+        nop
+/*
+ * Flush the instruction cache.
+ */
+1:
+        li      v0, ST0_DE | ST0_CE
+        mtc0    v0, CP0_STATUS       # Isolate and swap caches.
+        li      t0, KSEG1
+        subu    t0, t0, t1
+        li      t1, KSEG1
+        la      v0, 1f                          # Run cached
+        j       v0
+        nop
+1:
+        addu    t0, t0, 64
+        sb      zero, -64(t0)
+        sb      zero, -60(t0)
+        sb      zero, -56(t0)
+        sb      zero, -52(t0)
+        sb      zero, -48(t0)
+        sb      zero, -44(t0)
+        sb      zero, -40(t0)
+        sb      zero, -36(t0)
+        sb      zero, -32(t0)
+        sb      zero, -28(t0)
+        sb      zero, -24(t0)
+        sb      zero, -20(t0)
+        sb      zero, -16(t0)
+        sb      zero, -12(t0)
+        sb      zero, -8(t0)
+        bne     t0, t1, 1b
+        sb      zero, -4(t0)
+
+        la      v0, 1f
+        or      v0, KSEG1
+        j       v0                              # Run uncached
+        nop
+/*
+ * Flush the data cache.
+ */
+1:
+        li      v0, ST0_DE
+        mtc0    v0, CP0_STATUS       # Isolate and swap back caches
+        li      t0, KSEG1
+        subu    t0, t0, t2
+        la      v0, 1f
+        j       v0                              # Back to cached mode
+        nop
+1:
+        addu    t0, t0, 64
+        sb      zero, -64(t0)
+        sb      zero, -60(t0)
+        sb      zero, -56(t0)
+        sb      zero, -52(t0)
+        sb      zero, -48(t0)
+        sb      zero, -44(t0)
+        sb      zero, -40(t0)
+        sb      zero, -36(t0)
+        sb      zero, -32(t0)
+        sb      zero, -28(t0)
+        sb      zero, -24(t0)
+        sb      zero, -20(t0)
+        sb      zero, -16(t0)
+        sb      zero, -12(t0)
+        sb      zero, -8(t0)
+        bne     t0, t1, 1b
+        sb      zero, -4(t0)
+
+        nop                                     # Insure isolated stores
+        nop                                     #   out of pipe.
+        nop
+        nop
+        mtc0    t3, CP0_STATUS                 # Restore status reg.
+        nop                                    # Insure cache unisolated.
+        nop
+        nop
+        nop
+        j       ra
+        nop
+END(flush_cache_low)
+
+/* To satisfy macros only */
+EXPORT(kernelsp)
+	PTR	0x80001000
diff --git a/release/src/linux/linux/arch/mips/baget/irq.c b/release/src/linux/linux/arch/mips/baget/irq.c
new file mode 100644
index 00000000..022e4783
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/irq.c
@@ -0,0 +1,393 @@
+/*
+ * Code to handle Baget/MIPS IRQs plus some generic interrupt stuff.
+ *
+ * Copyright (C) 1998 Vladimir Roganov & Gleb Raiko
+ *      Code (mostly sleleton and comments) derived from DECstation IRQ
+ *      handling.
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/timex.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/delay.h>
+
+#include <asm/bitops.h>
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+
+#include <asm/baget/baget.h>
+
+volatile unsigned long irq_err_count;
+
+/*
+ * This table is a correspondence between IRQ numbers and CPU PILs
+ */
+
+static int irq_to_pil_map[BAGET_IRQ_NR] = {
+	7YYDELETEMEYY,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 0x00 - 0x0f */
+	-1,-1,-1,-1, 3,-1,-1,-1, 2, 2, 2,-1, 3,-1,-1,3YYDELETEMEYY, /* 0x10 - 0x1f */
+        -1,-1,-1,-1,-1,-1, 5,-1,-1,-1,-1,-1, 7,-1,-1,-1, /* 0x20 - 0x2f */
+	-1, 3, 2YYDELETEMEYY, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3  /* 0x30 - 0x3f */
+};
+
+static inline int irq_to_pil(int irq_nr)
+{
+	int pil = -1;
+
+	if (irq_nr >= BAGET_IRQ_NR)
+		baget_printk("irq_to_pil: too large irq_nr = 0x%x\n", irq_nr);
+	else {
+		pil = irq_to_pil_map[irq_nr];
+		if (pil == -1)
+			baget_printk("irq_to_pil: unknown irq = 0x%x\n", irq_nr);
+	}
+
+	return pil;
+}
+
+/* Function for careful CP0 interrupt mask access */
+
+static inline void modify_cp0_intmask(unsigned clr_mask, unsigned set_mask)
+{
+	unsigned long status = read_c0_status();
+	status &= ~((clr_mask & 0xFF) << 8);
+	status |=   (set_mask & 0xFF) << 8;
+	write_c0_status(status);
+}
+
+/*
+ *  These two functions may be used for unconditional IRQ
+ *  masking via their PIL protection.
+ */
+
+static inline void mask_irq(unsigned int irq_nr)
+{
+        modify_cp0_intmask(irq_to_pil(irq_nr), 0);
+}
+
+static inline void unmask_irq(unsigned int irq_nr)
+{
+	modify_cp0_intmask(0, irq_to_pil(irq_nr));
+}
+
+/*
+ * The following section is introduced for masking/unasking IRQ
+ * only while no more IRQs uses same CPU PIL.
+ *
+ * These functions are used in request_irq, free_irq, but it looks
+ * they cannot change something: CP0_STATUS is private for any
+ * process, and their action is invisible for system.
+ */
+
+static volatile unsigned int pil_in_use[BAGET_PIL_NR] = { 0, };
+
+void mask_irq_count(int irq_nr)
+{
+	unsigned long flags;
+	int pil = irq_to_pil(irq_nr);
+
+	save_and_cli(flags);
+	if (!--pil_in_use[pil])
+		mask_irq(irq_nr);
+	restore_flags(flags);
+}
+
+void unmask_irq_count(int irq_nr)
+{
+	unsigned long flags;
+	int pil = irq_to_pil(irq_nr);
+
+	save_and_cli(flags);
+	if (!pil_in_use[pil]++)
+		unmask_irq(irq_nr);
+	restore_flags(flags);
+}
+
+/*
+ * Two functions below are exported versions of mask/unmask IRQ
+ */
+
+void disable_irq(unsigned int irq_nr)
+{
+	unsigned long flags;
+
+	save_and_cli(flags);
+	mask_irq(irq_nr);
+	restore_flags(flags);
+}
+
+void enable_irq(unsigned int irq_nr)
+{
+	unsigned long flags;
+
+	save_and_cli(flags);
+	unmask_irq(irq_nr);
+	restore_flags(flags);
+}
+
+/*
+ * Pointers to the low-level handlers: first the general ones, then the
+ * fast ones, then the bad ones.
+ */
+static struct irqaction *irq_action[BAGET_IRQ_NR] = { NULL, };
+
+int get_irq_list(char *buf)
+{
+	int i, len = 0;
+	struct irqaction * action;
+
+	for (i = 0 ; i < BAGET_IRQ_NR ; i++) {
+		action = irq_action[i];
+		if (!action)
+			continue;
+		len += sprintf(buf+len, "%2d: %8d %c %s",
+			i, kstat.irqs[0][i],
+			(action->flags & SA_INTERRUPT) ? '+' : ' ',
+			action->name);
+		for (action=action->next; action; action = action->next) {
+			len += sprintf(buf+len, ",%s %s",
+				(action->flags & SA_INTERRUPT) ? " +" : "",
+				action->name);
+		}
+		len += sprintf(buf+len, "\n");
+	}
+	return len;
+}
+
+
+/*
+ * do_IRQ handles IRQ's that have been installed without the
+ * SA_INTERRUPT flag: it uses the full signal-handling return
+ * and runs with other interrupts enabled. All relatively slow
+ * IRQ's should use this format: notably the keyboard/timer
+ * routines.
+ */
+static void do_IRQ(int irq, struct pt_regs * regs)
+{
+	struct irqaction *action;
+	int do_random, cpu;
+
+	cpu = smp_processor_id();
+	irq_enter(cpu, irq);
+	kstat.irqs[cpu][irq]++;
+
+	mask_irq(irq);
+	action = *(irq + irq_action);
+	if (action) {
+		if (!(action->flags & SA_INTERRUPT))
+			__sti();
+		action = *(irq + irq_action);
+		do_random = 0;
+        	do {
+			do_random |= action->flags;
+			action->handler(irq, action->dev_id, regs);
+			action = action->next;
+        	} while (action);
+		if (do_random & SA_SAMPLE_RANDOM)
+			add_interrupt_randomness(irq);
+		__cli();
+	} else {
+		printk("do_IRQ: Unregistered IRQ (0x%X) occurred\n", irq);
+	}
+	unmask_irq(irq);
+	irq_exit(cpu, irq);
+
+	/* unmasking and bottom half handling is done magically for us. */
+}
+
+/*
+ *  What to do in case of 'no VIC register available' for current interrupt
+ */
+static void vic_reg_error(unsigned long address, unsigned char active_pils)
+{
+	printk("\nNo VIC register found: reg=%08lx active_pils=%02x\n"
+	       "Current interrupt mask from CP0_CAUSE: %02x\n",
+	       address, 0xff & active_pils,
+	       0xff & (read_c0_cause()>>8));
+	{ int i; for (i=0; i<10000; i++) udelay(1000); }
+}
+
+static char baget_fpu_irq = BAGET_FPU_IRQ;
+#define BAGET_INT_FPU {(unsigned long)&baget_fpu_irq, 1}
+
+/*
+ *  Main interrupt handler: interrupt demultiplexer
+ */
+asmlinkage void baget_interrupt(struct pt_regs *regs)
+{
+	static struct baget_int_reg int_reg[BAGET_PIL_NR] = {
+		BAGET_INT_NONE, BAGET_INT_NONE, BAGET_INT0_ACK, BAGET_INT1_ACK,
+		BAGET_INT_NONE, BAGET_INT_FPU,  BAGET_INT_NONE, BAGET_INT5_ACK
+	};
+	unsigned char active_pils;
+	while ((active_pils = read_c0_cause()>>8)) {
+		int pil;
+		struct baget_int_reg* reg;
+
+                for (pil = 0; pil < BAGET_PIL_NR; pil++) {
+                        if (!(active_pils & (1<<pil))) continue;
+
+			reg = &int_reg[pil];
+
+			if (reg->address) {
+                                extern int try_read(unsigned long,int);
+				int irq  = try_read(reg->address, reg->size);
+
+				if (irq != -1)
+				      do_IRQ(BAGET_IRQ_MASK(irq), regs);
+				else
+				      vic_reg_error(reg->address, active_pils);
+			} else {
+				printk("baget_interrupt: unknown interrupt "
+				       "(pil = %d)\n", pil);
+			}
+		}
+	}
+}
+
+/*
+ * Idea is to put all interrupts
+ * in a single table and differenciate them just by number.
+ */
+int setup_baget_irq(int irq, struct irqaction * new)
+{
+	int shared = 0;
+	struct irqaction *old, **p;
+	unsigned long flags;
+
+	p = irq_action + irq;
+	if ((old = *p) != NULL) {
+		/* Can't share interrupts unless both agree to */
+		if (!(old->flags & new->flags & SA_SHIRQ))
+			return -EBUSY;
+
+		/* Can't share interrupts unless both are same type */
+		if ((old->flags ^ new->flags) & SA_INTERRUPT)
+			return -EBUSY;
+
+		/* add new interrupt at end of irq queue */
+		do {
+			p = &old->next;
+			old = *p;
+		} while (old);
+		shared = 1;
+	}
+
+	if (new->flags & SA_SAMPLE_RANDOM)
+		rand_initialize_irq(irq);
+
+	save_and_cli(flags);
+	*p = new;
+	restore_flags(flags);
+
+	if (!shared) {
+		unmask_irq_count(irq);
+	}
+
+	return 0;
+}
+
+int request_irq(unsigned int irq,
+		void (*handler)(int, void *, struct pt_regs *),
+		unsigned long irqflags,
+		const char * devname,
+		void *dev_id)
+{
+	int retval;
+	struct irqaction * action;
+
+	if (irq >= BAGET_IRQ_NR)
+		return -EINVAL;
+	if (!handler)
+		return -EINVAL;
+	if (irq_to_pil_map[irq] < 0)
+		return -EINVAL;
+
+	action = (struct irqaction *)
+			kmalloc(sizeof(struct irqaction), GFP_KERNEL);
+	if (!action)
+		return -ENOMEM;
+
+	action->handler = handler;
+	action->flags = irqflags;
+	action->mask = 0;
+	action->name = devname;
+	action->next = NULL;
+	action->dev_id = dev_id;
+
+	retval = setup_baget_irq(irq, action);
+
+	if (retval)
+		kfree(action);
+
+	return retval;
+}
+
+void free_irq(unsigned int irq, void *dev_id)
+{
+	struct irqaction * action, **p;
+	unsigned long flags;
+
+	if (irq >= BAGET_IRQ_NR)
+		printk("Trying to free IRQ%d\n",irq);
+
+	for (p = irq + irq_action; (action = *p) != NULL; p = &action->next) {
+		if (action->dev_id != dev_id)
+			continue;
+
+		/* Found it - now free it */
+		save_and_cli(flags);
+		*p = action->next;
+		if (!irq[irq_action])
+			unmask_irq_count(irq);
+		restore_flags(flags);
+		kfree(action);
+		return;
+	}
+	printk("Trying to free free IRQ%d\n",irq);
+}
+
+unsigned long probe_irq_on (void)
+{
+	/* TODO */
+	return 0;
+}
+
+int probe_irq_off (unsigned long irqs)
+{
+	/* TODO */
+	return 0;
+}
+
+
+static void write_err_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+{
+	*(volatile char*) BAGET_WRERR_ACK = 0;
+}
+
+static struct irqaction irq0  =
+{ write_err_interrupt, SA_INTERRUPT, 0, "bus write error", NULL, NULL};
+
+void __init init_IRQ(void)
+{
+	irq_setup();
+
+	/* Enable access to VIC interrupt registers */
+	vac_outw(0xacef | 0x8200, VAC_PIO_FUNC);
+
+	/* Enable interrupts for pils 2 and 3 (lines 0 and 1) */
+	modify_cp0_intmask(0, (1<<2)|(1<<3));
+
+	if (setup_baget_irq(0, &irq0) < 0)
+		printk("init_IRQ: unable to register write_err irq\n");
+}
diff --git a/release/src/linux/linux/arch/mips/baget/ld.script.balo b/release/src/linux/linux/arch/mips/baget/ld.script.balo
new file mode 100644
index 00000000..567a8e5b
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/ld.script.balo
@@ -0,0 +1,125 @@
+OUTPUT_FORMAT("elf32-bigmips")
+OUTPUT_ARCH(mips)
+ENTRY(balo_entry)
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = 0x80400000;
+  .rel.text      : { *(.rel.text)	}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)	}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)	}
+  .rela.got      : { *(.rela.got)	}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.init      : { *(.rel.init)	}
+  .rela.init     : { *(.rela.init)	}
+  .rel.fini      : { *(.rel.fini)	}
+  .rela.fini     : { *(.rela.fini)	}
+  .rel.bss       : { *(.rel.bss)	}
+  .rela.bss      : { *(.rela.bss)	}
+  .rel.plt       : { *(.rel.plt)	}
+  .rela.plt      : { *(.rela.plt)	}
+  .init          : { *(.init)		} =0
+  .text      :
+  {
+    _ftext = . ;
+    *(.text)
+    *(.rodata)
+    *(.rodata.*)
+    *(.rodata1)
+    /* .gnu.warning sections are handled specially by elf32.em.  */
+    *(.gnu.warning)
+
+  _etext = .;
+  PROVIDE (etext = .);
+
+  /* Startup code */
+  . = ALIGN(4096);
+  __init_begin = .;
+  *(.text.init)
+  *(.data.init)
+  . = ALIGN(4096);	/* Align double page for init_task_union */
+  __init_end = .;
+
+   *(.fini)
+  *(.reginfo)
+  /* Adjust the address for the data segment.  We want to adjust up to
+     the same address within the page on the next page up.  It would
+     be more correct to do this:
+       . = .;
+     The current expression does not correctly handle the case of a
+     text segment ending precisely at the end of a page; it causes the
+     data segment to skip a page.  The above expression does not have
+     this problem, but it will currently (2/95) cause BFD to allocate
+     a single segment, combining both text and data, for this case.
+     This will prevent the text segment from being shared among
+     multiple executions of the program; I think that is more
+     important than losing a page of the virtual address space (note
+     that no actual memory is lost; the page which is skipped can not
+     be referenced).  */
+  . = .;
+    _fdata = . ;
+    *(.data)
+    CONSTRUCTORS
+
+  *(.data1)
+  _gp = . + 0x8000;
+  *(.lit8)
+  *(.lit4)
+  *(.ctors)
+  *(.dtors)
+  *(.got.plt) *(.got)
+  *(.dynamic)
+  /* We want the small data sections together, so single-instruction offsets
+     can access them all, and initialized data all before uninitialized, so
+     we can shorten the on-disk segment size.  */
+  *(.sdata)
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  __bss_start = .;
+  _fbss = .;
+
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  _end = . ;
+  PROVIDE (end = .);
+   *(.sbss)
+   *(.scommon)
+
+  /* These are needed for ELF backends which have not yet been
+     converted to the new style linker.  */
+  *(.stab)
+  *(.stabstr)
+  /* DWARF debug sections.
+     Symbols in the .debug DWARF section are relative to the beginning of the
+     section so we begin .debug at 0.  It's not clear yet what needs to happen
+     for the others.   */
+  *(.debug)
+  *(.debug_srcinfo)
+  *(.debug_aranges)
+  *(.debug_pubnames)
+  *(.debug_sfnames)
+  *(.line)
+  /* These must appear regardless of  .  */
+  *(.gptab.data) *(.gptab.sdata)
+  *(.gptab.bss) *(.gptab.sbss)
+
+  _vmlinux_start = .;
+  *(.vmlinux)
+  _vmlinux_end = .;
+
+  _ramdisk_start = .;
+  *(.ramdisk)
+  _ramdisk_end = .;
+
+} =0
+
+}
diff --git a/release/src/linux/linux/arch/mips/baget/print.c b/release/src/linux/linux/arch/mips/baget/print.c
new file mode 100644
index 00000000..50f0dfa1
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/print.c
@@ -0,0 +1,116 @@
+/*
+ * print.c: Simple print fascility
+ *
+ * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
+ */
+#include <stdarg.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/baget/baget.h>
+
+/*
+ *  Define this to see 'baget_printk' (debug) messages
+ */
+// #define BAGET_PRINTK
+
+/*
+ *  This function is same for BALO and Linux baget_printk,
+ *  and normally prints characted to second (UART A) console.
+ */
+
+static void delay(void) {}
+
+static void outc_low(char c)
+{
+        int i;
+        vac_outb(c, VAC_UART_B_TX);
+        for (i=0; i<10000; i++)
+                delay();
+}
+
+void outc(char c)
+{
+        if (c == '\n')
+                outc_low('\r');
+        outc_low(c);
+}
+
+void outs(char *s)
+{
+        while(*s) outc(*s++);
+}
+
+void baget_write(char *s, int l)
+{
+        while(l--)
+                outc(*s++);
+}
+
+int baget_printk(const char *fmt, ...)
+{
+#ifdef BAGET_PRINTK
+        va_list args;
+        int i;
+        static char buf[1024];
+
+        va_start(args, fmt);
+        i = vsprintf(buf, fmt, args); /* hopefully i < sizeof(buf)-4 */
+        va_end(args);
+        baget_write(buf, i);
+        return i;
+#else
+	return 0;
+#endif
+}
+
+static __inline__ void puthex( int a )
+{
+        static char s[9];
+        static char e[] = "0123456789ABCDEF";
+        int i;
+        for( i = 7; i >= 0; i--, a >>= 4 ) s[i] = e[a & 0x0F];
+        s[8] = '\0';
+        outs( s );
+}
+
+void __init balo_printf( char *f, ... )
+{
+        int *arg = (int*)&f + 1;
+        char c;
+        int format = 0;
+
+        while((c = *f++) != 0) {
+                switch(c) {
+                default:
+                        if(format) {
+                                outc('%');
+                                format = 0;
+                        }
+                        outc( c );
+                        break;
+                case '%':
+                        if( format ){
+                                format = 0;
+                                outc(c);
+                        } else format = 1;
+                        break;
+                case 'x':
+                        if(format) puthex( *arg++ );
+                        else outc(c);
+                        format = 0;
+                        break;
+                case 's':
+                        if( format ) outs((char *)*arg++);
+                        else outc(c);
+                        format = 0;
+                        break;
+                }
+        }
+}
+
+void __init balo_hungup(void)
+{
+        outs("Hunging up.\n");
+        while(1);
+}
diff --git a/release/src/linux/linux/arch/mips/baget/prom/Makefile b/release/src/linux/linux/arch/mips/baget/prom/Makefile
new file mode 100644
index 00000000..ee24ab30
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/prom/Makefile
@@ -0,0 +1,14 @@
+#
+# Makefile for the Baget/MIPS prom emulator library routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+L_TARGET := bagetlib.a
+
+obj-y	:= init.o
+
+include $(TOPDIR)/Rules.make
diff --git a/release/src/linux/linux/arch/mips/baget/prom/init.c b/release/src/linux/linux/arch/mips/baget/prom/init.c
new file mode 100644
index 00000000..4557e653
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/prom/init.c
@@ -0,0 +1,33 @@
+/*
+ * init.c: PROM library initialisation code.
+ *
+ * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
+ */
+#include <linux/init.h>
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+
+char arcs_cmdline[CL_SIZE];
+
+const char *get_system_type(void)
+{
+	/* Should probably return one of "BT23-201", "BT23-202" */
+	return "Baget";
+}
+
+void __init prom_init(unsigned int mem_upper)
+{
+	mem_upper = PHYSADDR(mem_upper);
+
+	mips_machgroup  = MACH_GROUP_UNKNOWN;
+	mips_machtype   = MACH_UNKNOWN;
+	arcs_cmdline[0] = 0;
+
+	vac_memory_upper = mem_upper;
+
+	add_memory_region(0, mem_upper, BOOT_MEM_RAM);
+}
+
+void prom_free_prom_memory (void)
+{
+}
diff --git a/release/src/linux/linux/arch/mips/baget/reset.c b/release/src/linux/linux/arch/mips/baget/reset.c
new file mode 100644
index 00000000..7983f878
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/reset.c
@@ -0,0 +1,31 @@
+#include <linux/kernel.h>
+#include <asm/system.h>
+#include <asm/baget/baget.h>
+
+
+#define R3000_RESET_VEC  0xbfc00000
+typedef void vector(void);
+
+
+static void baget_reboot(char *from_fun)
+{
+	cli();
+	baget_printk("\n%s: jumping to RESET code...\n", from_fun);
+	(*(vector*)R3000_RESET_VEC)();
+}
+
+
+void baget_machine_restart(char *command)
+{
+	baget_reboot("restart");
+}
+
+void baget_machine_halt(void)
+{
+	baget_reboot("halt");
+}
+
+void baget_machine_power_off(void)
+{
+	baget_reboot("power off");
+}
diff --git a/release/src/linux/linux/arch/mips/baget/setup.c b/release/src/linux/linux/arch/mips/baget/setup.c
new file mode 100644
index 00000000..3a37c0e2
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/setup.c
@@ -0,0 +1,488 @@
+/*
+ * setup.c: Baget/MIPS specific setup, including init of the feature struct.
+ *
+ * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <asm/irq.h>
+#include <asm/addrspace.h>
+#include <asm/reboot.h>
+
+#include <asm/baget/baget.h>
+
+long int vac_memory_upper;
+
+#define CACHEABLE_STR(val) ((val) ? "not cached" : "cached")
+#define MIN(a,b)           (((a)<(b)) ? (a):(b))
+
+static void __init vac_show(void)
+{
+	int i;
+	unsigned short val, decode = vac_inw(VAC_DECODE_CTRL);
+	unsigned short a24_base = vac_inw(VAC_A24_BASE);
+	unsigned long  a24_addr = ((unsigned long)
+					   (a24_base & VAC_A24_MASK)) << 16;
+	char *decode_mode[]  = { "eprom", "vsb", "shared", "dram" };
+	char *address_mode[] = { "", ", A16", ", A32/A24", ", A32/A24/A16" };
+	char *state[] = { "", " on write", " on read", " on read/write", };
+	char *region_mode[] = { "inactive", "shared", "vsb", "vme" };
+	char *asiz[]        = { "user", "A32", "A16", "A24" };
+	unsigned short regs[] = { VAC_REG1,     VAC_REG2, VAC_REG3  };
+	unsigned short bndr[] = { VAC_DRAM_MASK,VAC_BNDR2,VAC_BNDR3 };
+	unsigned short io_sels[] = { VAC_IOSEL0_CTRL,
+				     VAC_IOSEL1_CTRL,
+				     VAC_IOSEL2_CTRL,
+				     VAC_IOSEL3_CTRL,
+				     VAC_IOSEL4_CTRL,
+				     VAC_IOSEL5_CTRL };
+
+	printk("[DSACKi %s, DRAMCS%s qualified, boundary%s qualified%s]\n",
+	       (decode & VAC_DECODE_DSACKI)     ? "on" : "off",
+	       (decode & VAC_DECODE_QFY_DRAMCS) ? ""   : " not",
+	       (decode & VAC_DECODE_QFY_BNDR)   ? ""   : " not",
+	       (decode & VAC_DECODE_FPUCS)      ? ", fpu" : "");
+
+	printk("slave0 ");
+	if (decode & VAC_DECODE_RDR_SLSEL0)
+		printk("at %08lx (%d MB)\t[dram %s]\n",
+		       ((unsigned long)vac_inw(VAC_SLSEL0_BASE))<<16,
+		       ((0xffff ^ vac_inw(VAC_SLSEL0_MASK)) + 1) >> 4,
+		       (decode & VAC_DECODE_QFY_SLSEL0) ? "qualified" : "");
+	else
+		printk("off\n");
+
+	printk("slave1 ");
+	if (decode & VAC_DECODE_RDR_SLSEL1)
+		printk("at %08lx (%d MB)\t[%s%s, %s]\n",
+		       ((unsigned long)vac_inw(VAC_SLSEL1_BASE))<<16,
+		       ((0xffff ^ vac_inw(VAC_SLSEL1_MASK)) + 1) >> 4,
+		       decode_mode[VAC_DECODE_MODE_VAL(decode)],
+		       address_mode[VAC_DECODE_CMP_SLSEL1_VAL(decode)],
+		       (decode & VAC_DECODE_QFY_SLSEL1) ? "qualified" : "");
+	else
+		printk("off\n");
+
+	printk("icf global at %04x, module at %04x [%s]\n",
+		       ((unsigned int)
+			VAC_ICFSEL_GLOBAL_VAL(vac_inw(VAC_ICFSEL_BASE)))<<4,
+		       ((unsigned int)
+			VAC_ICFSEL_MODULE_VAL(vac_inw(VAC_ICFSEL_BASE)))<<4,
+		       (decode & VAC_DECODE_QFY_ICFSEL) ? "qualified" : "");
+
+
+	printk("region0 at 00000000 (%dMB)\t[dram, %s, delay %d cpuclk"
+	       ", cached]\n",
+	       (vac_inw(VAC_DRAM_MASK)+1)>>4,
+	       (decode & VAC_DECODE_DSACK) ? "D32" : "3state",
+	       VAC_DECODE_CPUCLK_VAL(decode));
+
+	for (i = 0; i < sizeof(regs)/sizeof(regs[0]); i++) {
+		unsigned long from =
+			((unsigned long)vac_inw(bndr[i]))<<16;
+		unsigned long to   =
+			((unsigned long)
+			 ((i+1 == sizeof(bndr)/sizeof(bndr[0])) ?
+			  0xff00 : vac_inw(bndr[i+1])))<<16;
+
+
+		val = vac_inw(regs[i]);
+		printk("region%d at %08lx (%dMB)\t[%s %s/%s, %s]\n",
+		       i+1,
+		       from,
+		       (unsigned int)((to - from) >> 20),
+		       region_mode[VAC_REG_MODE(val)],
+		       asiz[VAC_REG_ASIZ_VAL(val)],
+		       ((val & VAC_REG_WORD) ?  "D16" : "D32"),
+		       CACHEABLE_STR(val&VAC_A24_A24_CACHINH));
+
+		if (a24_addr >= from && a24_addr < to)
+			printk("\ta24 at %08lx (%dMB)\t[vme, A24/%s, %s]\n",
+			       a24_addr,
+			       MIN((unsigned int)(a24_addr - from)>>20, 32),
+			       (a24_base & VAC_A24_DATAPATH) ?  "user" :
+			       ((a24_base & VAC_A24_D32_ENABLE)  ?
+				"D32" : "D16"),
+			       CACHEABLE_STR(a24_base & VAC_A24_A24_CACHINH));
+	}
+
+	printk("region4 at ff000000 (15MB)\t[eprom]\n");
+	val = vac_inw(VAC_EPROMCS_CTRL);
+	printk("\t[ack %d cpuclk%s, %s%srecovery %d cpuclk, "
+	       "read %d%s, write %d%s, assert %d%s]\n",
+	       VAC_CTRL_DELAY_DSACKI_VAL(val),
+	       state[val & (VAC_CTRL_IORD|VAC_CTRL_IOWR)],
+	       (val & VAC_CTRL_DSACK0) ? "dsack0*, " : "",
+	       (val & VAC_CTRL_DSACK1) ? "dsack1*, " : "",
+	       VAC_CTRL_RECOVERY_IOSELI_VAL(val),
+	       VAC_CTRL_DELAY_IORD_VAL(val)/2,
+	       (VAC_CTRL_DELAY_IORD_VAL(val)&1) ? ".5" : "",
+	       VAC_CTRL_DELAY_IOWR_VAL(val)/2,
+	       (VAC_CTRL_DELAY_IOWR_VAL(val)&1) ? ".5" : "",
+	       VAC_CTRL_DELAY_IOSELI_VAL(val)/2,
+	       (VAC_CTRL_DELAY_IOSELI_VAL(val)&1) ? ".5" : "");
+
+	printk("region5 at fff00000 (896KB)\t[local io, %s]\n",
+	       CACHEABLE_STR(vac_inw(VAC_A24_BASE) & VAC_A24_IO_CACHINH));
+
+	for (i = 0; i < sizeof(io_sels)/sizeof(io_sels[0]); i++) {
+		val = vac_inw(io_sels[i]);
+		printk("\tio%d[ack %d cpuclk%s, %s%srecovery %d cpuclk, "
+		       "\n\t read %d%s cpuclk, write %d%s cpuclk, "
+		       "assert %d%s%s cpuclk]\n",
+		       i,
+		       VAC_CTRL_DELAY_DSACKI_VAL(val),
+		       state[val & (VAC_CTRL_IORD|VAC_CTRL_IOWR)],
+		       (val & VAC_CTRL_DSACK0) ? "dsack0*, " : "",
+		       (val & VAC_CTRL_DSACK1) ? "dsack1*, " : "",
+		       VAC_CTRL_RECOVERY_IOSELI_VAL(val),
+		       VAC_CTRL_DELAY_IORD_VAL(val)/2,
+		       (VAC_CTRL_DELAY_IORD_VAL(val)&1) ? ".5" : "",
+		       VAC_CTRL_DELAY_IOWR_VAL(val)/2,
+		       (VAC_CTRL_DELAY_IOWR_VAL(val)&1) ? ".5" : "",
+		       VAC_CTRL_DELAY_IOSELI_VAL(val)/2,
+		       (VAC_CTRL_DELAY_IOSELI_VAL(val)&1) ? ".5" : "",
+		       (vac_inw(VAC_DEV_LOC) & VAC_DEV_LOC_IOSEL(i)) ?
+		          ", id" : "");
+	}
+
+	printk("region6 at fffe0000 (128KB)\t[vme, A16/%s, "
+	       "not cached]\n",
+	       (a24_base & VAC_A24_A16D32_ENABLE) ?
+	       ((a24_base & VAC_A24_A16D32) ? "D32" : "D16") : "user");
+
+	val = vac_inw(VAC_SHRCS_CTRL);
+	printk("shared[ack %d cpuclk%s, %s%srecovery %d cpuclk, "
+	       "read %d%s, write %d%s, assert %d%s]\n",
+	       VAC_CTRL_DELAY_DSACKI_VAL(val),
+	       state[val & (VAC_CTRL_IORD|VAC_CTRL_IOWR)],
+	       (val & VAC_CTRL_DSACK0) ? "dsack0*, " : "",
+	       (val & VAC_CTRL_DSACK1) ? "dsack1*, " : "",
+	       VAC_CTRL_RECOVERY_IOSELI_VAL(val),
+	       VAC_CTRL_DELAY_IORD_VAL(val)/2,
+	       (VAC_CTRL_DELAY_IORD_VAL(val)&1) ? ".5" : "",
+	       VAC_CTRL_DELAY_IOWR_VAL(val)/2,
+	       (VAC_CTRL_DELAY_IOWR_VAL(val)&1) ? ".5" : "",
+	       VAC_CTRL_DELAY_IOSELI_VAL(val)/2,
+	       (VAC_CTRL_DELAY_IOSELI_VAL(val)&1) ? ".5" : "");
+}
+
+static void __init vac_init(void)
+{
+	unsigned short mem_limit = (vac_memory_upper >> 16);
+
+	switch(vac_inw(VAC_ID)) {
+	case 0x1AC0:
+		printk("VAC068-F5: ");
+		break;
+	case 0x1AC1:
+		printk("VAC068A: ");
+		break;
+	default:
+		panic("Unknown VAC revision number");
+	}
+
+	vac_outw(mem_limit-1, VAC_DRAM_MASK);
+	vac_outw(mem_limit, VAC_BNDR2);
+	vac_outw(mem_limit, VAC_BNDR3);
+	vac_outw(((BAGET_A24M_BASE>>16)&~VAC_A24_D32_ENABLE)|VAC_A24_DATAPATH,
+		 VAC_A24_BASE);
+	vac_outw(VAC_REG_INACTIVE|VAC_REG_ASIZ0,VAC_REG1);
+	vac_outw(VAC_REG_INACTIVE|VAC_REG_ASIZ0,VAC_REG2);
+	vac_outw(VAC_REG_MWB|VAC_REG_ASIZ1,VAC_REG3);
+	vac_outw(BAGET_A24S_BASE>>16,VAC_SLSEL0_BASE);
+	vac_outw(BAGET_A24S_MASK>>16,VAC_SLSEL0_MASK);
+	vac_outw(BAGET_A24S_BASE>>16,VAC_SLSEL1_BASE);
+	vac_outw(BAGET_A24S_MASK>>16,VAC_SLSEL1_MASK);
+	vac_outw(BAGET_GSW_BASE|BAGET_MSW_BASE(0),VAC_ICFSEL_BASE);
+	vac_outw(VAC_DECODE_FPUCS|
+		 VAC_DECODE_CPUCLK(3)|
+		 VAC_DECODE_RDR_SLSEL0|VAC_DECODE_RDR_SLSEL1|
+		 VAC_DECODE_DSACK|
+		 VAC_DECODE_QFY_BNDR|
+		 VAC_DECODE_QFY_ICFSEL|
+		 VAC_DECODE_QFY_SLSEL1|VAC_DECODE_QFY_SLSEL0|
+		 VAC_DECODE_CMP_SLSEL1_HI|
+		 VAC_DECODE_DRAMCS|
+		 VAC_DECODE_QFY_DRAMCS|
+		 VAC_DECODE_DSACKI,VAC_DECODE_CTRL);
+	vac_outw(VAC_PIO_FUNC_UART_A_TX|VAC_PIO_FUNC_UART_A_RX|
+		 VAC_PIO_FUNC_UART_B_TX|VAC_PIO_FUNC_UART_B_RX|
+		 VAC_PIO_FUNC_IOWR|
+		 VAC_PIO_FUNC_IOSEL3|
+		 VAC_PIO_FUNC_IRQ7|VAC_PIO_FUNC_IRQ10|VAC_PIO_FUNC_IRQ11|
+		 VAC_PIO_FUNC_IOSEL2|
+		 VAC_PIO_FUNC_FCIACK,VAC_PIO_FUNC);
+	vac_outw(VAC_PIO_DIR_FCIACK |
+		 VAC_PIO_DIR_OUT(0) |
+		 VAC_PIO_DIR_OUT(1) |
+		 VAC_PIO_DIR_OUT(2) |
+		 VAC_PIO_DIR_OUT(3) |
+		 VAC_PIO_DIR_IN(4)  |
+		 VAC_PIO_DIR_OUT(5) |
+		 VAC_PIO_DIR_OUT(6) |
+		 VAC_PIO_DIR_OUT(7) |
+		 VAC_PIO_DIR_OUT(8) |
+		 VAC_PIO_DIR_IN(9)  |
+		 VAC_PIO_DIR_OUT(10)|
+		 VAC_PIO_DIR_OUT(11)|
+		 VAC_PIO_DIR_OUT(12)|
+		 VAC_PIO_DIR_OUT(13),VAC_PIO_DIRECTION);
+	vac_outw(VAC_DEV_LOC_IOSEL(2),VAC_DEV_LOC);
+	vac_outw(VAC_CTRL_IOWR|
+		 VAC_CTRL_DELAY_IOWR(3)|
+		 VAC_CTRL_DELAY_IORD(3)|
+		 VAC_CTRL_RECOVERY_IOSELI(1)|
+		 VAC_CTRL_DELAY_DSACKI(8),VAC_SHRCS_CTRL);
+	vac_outw(VAC_CTRL_IOWR|
+		 VAC_CTRL_DELAY_IOWR(3)|
+		 VAC_CTRL_DELAY_IORD(3)|
+		 VAC_CTRL_RECOVERY_IOSELI(1)|
+		 VAC_CTRL_DSACK0|VAC_CTRL_DSACK1|
+		 VAC_CTRL_DELAY_DSACKI(8),VAC_EPROMCS_CTRL);
+	vac_outw(VAC_CTRL_IOWR|
+		 VAC_CTRL_DELAY_IOWR(3)|
+		 VAC_CTRL_DELAY_IORD(3)|
+		 VAC_CTRL_RECOVERY_IOSELI(2)|
+		 VAC_CTRL_DSACK0|VAC_CTRL_DSACK1|
+		 VAC_CTRL_DELAY_DSACKI(8),VAC_IOSEL0_CTRL);
+	vac_outw(VAC_CTRL_IOWR|
+		 VAC_CTRL_DELAY_IOWR(3)|
+		 VAC_CTRL_DELAY_IORD(3)|
+		 VAC_CTRL_RECOVERY_IOSELI(2)|
+		 VAC_CTRL_DSACK0|VAC_CTRL_DSACK1|
+		 VAC_CTRL_DELAY_DSACKI(8),VAC_IOSEL1_CTRL);
+	vac_outw(VAC_CTRL_IOWR|
+		 VAC_CTRL_DELAY_IOWR(3)|
+		 VAC_CTRL_DELAY_IORD(3)|
+		 VAC_CTRL_RECOVERY_IOSELI(2)|
+		 VAC_CTRL_DSACK0|VAC_CTRL_DSACK1|
+		 VAC_CTRL_DELAY_DSACKI(8),VAC_IOSEL2_CTRL);
+	vac_outw(VAC_CTRL_IOWR|
+		 VAC_CTRL_DELAY_IOWR(3)|
+		 VAC_CTRL_DELAY_IORD(3)|
+		 VAC_CTRL_RECOVERY_IOSELI(2)|
+		 VAC_CTRL_DSACK0|VAC_CTRL_DSACK1|
+		 VAC_CTRL_DELAY_DSACKI(8),VAC_IOSEL3_CTRL);
+	vac_outw(VAC_CTRL_IOWR|
+		 VAC_CTRL_DELAY_IOWR(3)|
+		 VAC_CTRL_DELAY_IORD(3)|
+		 VAC_CTRL_RECOVERY_IOSELI(2)|
+		 VAC_CTRL_DELAY_DSACKI(8),VAC_IOSEL4_CTRL);
+	vac_outw(VAC_CTRL_IOWR|
+		 VAC_CTRL_DELAY_IOWR(3)|
+		 VAC_CTRL_DELAY_IORD(3)|
+		 VAC_CTRL_RECOVERY_IOSELI(2)|
+		 VAC_CTRL_DELAY_DSACKI(8),VAC_IOSEL5_CTRL);
+
+        vac_show();
+}
+
+static void __init vac_start(void)
+{
+	vac_outw(0, VAC_ID);
+	vac_outw(VAC_INT_CTRL_TIMER_DISABLE|
+		 VAC_INT_CTRL_UART_B_DISABLE|
+		 VAC_INT_CTRL_UART_A_DISABLE|
+		 VAC_INT_CTRL_MBOX_DISABLE|
+		 VAC_INT_CTRL_PIO4_DISABLE|
+		 VAC_INT_CTRL_PIO7_DISABLE|
+		 VAC_INT_CTRL_PIO8_DISABLE|
+		 VAC_INT_CTRL_PIO9_DISABLE,VAC_INT_CTRL);
+	vac_outw(VAC_INT_CTRL_TIMER_PIO10|
+		 VAC_INT_CTRL_UART_B_PIO7|
+		 VAC_INT_CTRL_UART_A_PIO7,VAC_INT_CTRL);
+	/*
+	 *  Set quadro speed for both UARTs.
+	 *  To do it we need use formulae from VIC/VAC manual,
+	 *  keeping in mind Baget's 50MHz frequency...
+	 */
+	vac_outw((500000/(384*16))<<8,VAC_CPU_CLK_DIV);
+}
+
+static void __init vic_show(void)
+{
+	unsigned char val;
+	char *timeout[]  = { "4", "16", "32", "64", "128", "256", "disabled" };
+	char *deadlock[] = { "[dedlk only]", "[dedlk only]",
+			     "[dedlk], [halt w/ rmc], [lberr]",
+			     "[dedlk], [halt w/o rmc], [lberr]" };
+
+	val = vic_inb(VIC_IFACE_CFG);
+	if (val & VIC_IFACE_CFG_VME)
+		printk("VMEbus controller ");
+	if (val & VIC_IFACE_CFG_TURBO)
+		printk("turbo ");
+	if (val & VIC_IFACE_CFG_MSTAB)
+		printk("metastability delay ");
+	printk("%s ",
+	       deadlock[VIC_IFACE_CFG_DEADLOCK_VAL(val)]);
+
+
+	printk("interrupts: ");
+	val = vic_inb(VIC_ERR_INT);
+	if (!(val & VIC_ERR_INT_SYSFAIL))
+		printk("[sysfail]");
+	if (!(val & VIC_ERR_INT_TIMO))
+		printk("[timeout]");
+	if (!(val & VIC_ERR_INT_WRPOST))
+		printk("[write post]");
+	if (!(val & VIC_ERR_INT_ACFAIL))
+		printk("[acfail] ");
+	printk("\n");
+
+	printk("timeouts: ");
+	val = vic_inb(VIC_XFER_TIMO);
+	printk("local %s, vme %s ",
+	       timeout[VIC_XFER_TIMO_LOCAL_PERIOD_VAL(val)],
+	       timeout[VIC_XFER_TIMO_VME_PERIOD_VAL(val)]);
+	if (val & VIC_XFER_TIMO_VME)
+		printk("acquisition ");
+	if (val & VIC_XFER_TIMO_ARB)
+		printk("arbitration ");
+	printk("\n");
+
+	val = vic_inb(VIC_LOCAL_TIM);
+	printk("pas time: (%d,%d), ds time: %d\n",
+	       VIC_LOCAL_TIM_PAS_ASSERT_VAL(val),
+	       VIC_LOCAL_TIM_PAS_DEASSERT_VAL(val),
+	       VIC_LOCAT_TIM_DS_DEASSERT_VAL(val));
+
+	val = vic_inb(VIC_BXFER_DEF);
+	printk("dma: ");
+	if (val & VIC_BXFER_DEF_DUAL)
+		printk("[dual path]");
+	if (val & VIC_BXFER_DEF_LOCAL_CROSS)
+		printk("[local boundary cross]");
+	if (val & VIC_BXFER_DEF_VME_CROSS)
+		printk("[vme boundary cross]");
+
+}
+
+static void __init vic_init(void)
+{
+	 unsigned char id = vic_inb(VIC_ID);
+	 if ((id & 0xf0) != 0xf0)
+		 panic("VIC not found");
+	 printk(" VIC068A Rev. %X: ", id & 0x0f);
+
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_DISABLE,VIC_VME_II);
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_DISABLE,VIC_VME_INT1);
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_DISABLE,VIC_VME_INT2);
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_DISABLE,VIC_VME_INT3);
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_DISABLE,VIC_VME_INT4);
+/*
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_DISABLE, VIC_VME_INT5);
+*/
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_DISABLE, VIC_VME_INT6);
+
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_DISABLE, VIC_VME_INT7);
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_DISABLE, VIC_DMA_INT);
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_NOAUTO|VIC_INT_EDGE|
+		  VIC_INT_LOW|VIC_INT_DISABLE, VIC_LINT1);
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_NOAUTO|VIC_INT_EDGE|
+		  VIC_INT_HIGH|VIC_INT_DISABLE, VIC_LINT2);
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_NOAUTO|VIC_INT_EDGE|
+		  VIC_INT_HIGH|VIC_INT_DISABLE, VIC_LINT3);
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_NOAUTO|VIC_INT_EDGE|
+		  VIC_INT_LOW|VIC_INT_DISABLE, VIC_LINT4);
+/*
+	 vic_outb(VIC_INT_IPL(3)|VIC_INT_NOAUTO|VIC_INT_LEVEL|
+		  VIC_INT_LOW|VIC_INT_DISABLE, VIC_LINT5);
+*/
+	 vic_outb(VIC_INT_IPL(6)|VIC_INT_NOAUTO|VIC_INT_EDGE|
+		  VIC_INT_LOW|VIC_INT_DISABLE, VIC_LINT6);
+	 vic_outb(VIC_INT_IPL(6)|VIC_INT_NOAUTO|VIC_INT_EDGE|
+		  VIC_INT_LOW|VIC_INT_DISABLE, VIC_LINT7);
+
+	 vic_outb(VIC_INT_IPL(3)|
+		  VIC_INT_SWITCH(0)|
+		  VIC_INT_SWITCH(1)|
+		  VIC_INT_SWITCH(2)|
+		  VIC_INT_SWITCH(3), VIC_ICGS_INT);
+	 vic_outb(VIC_INT_IPL(3)|
+		  VIC_INT_SWITCH(0)|
+		  VIC_INT_SWITCH(1)|
+		  VIC_INT_SWITCH(2)|
+		  VIC_INT_SWITCH(3), VIC_ICMS_INT);
+	 vic_outb(VIC_INT_IPL(6)|
+		  VIC_ERR_INT_SYSFAIL|
+		  VIC_ERR_INT_TIMO|
+		  VIC_ERR_INT_WRPOST|
+		  VIC_ERR_INT_ACFAIL, VIC_ERR_INT);
+	 vic_outb(VIC_ICxS_BASE_ID(0xf), VIC_ICGS_BASE);
+	 vic_outb(VIC_ICxS_BASE_ID(0xe), VIC_ICMS_BASE);
+	 vic_outb(VIC_LOCAL_BASE_ID(0x6), VIC_LOCAL_BASE);
+	 vic_outb(VIC_ERR_BASE_ID(0x3), VIC_ERR_BASE);
+	 vic_outb(VIC_XFER_TIMO_VME_PERIOD_32|
+		  VIC_XFER_TIMO_LOCAL_PERIOD_32, VIC_XFER_TIMO);
+	 vic_outb(VIC_LOCAL_TIM_PAS_ASSERT(2)|
+		  VIC_LOCAT_TIM_DS_DEASSERT(1)|
+		  VIC_LOCAL_TIM_PAS_DEASSERT(1), VIC_LOCAL_TIM);
+	 vic_outb(VIC_BXFER_DEF_VME_CROSS|
+		  VIC_BXFER_DEF_LOCAL_CROSS|
+		  VIC_BXFER_DEF_AMSR|
+		  VIC_BXFER_DEF_DUAL, VIC_BXFER_DEF);
+	 vic_outb(VIC_SSxCR0_LOCAL_XFER_SINGLE|
+		  VIC_SSxCR0_A32|VIC_SSxCR0_D32|
+		  VIC_SS0CR0_TIMER_FREQ_NONE, VIC_SS0CR0);
+	 vic_outb(VIC_SSxCR1_TF1(0xf)|
+		  VIC_SSxCR1_TF2(0xf), VIC_SS0CR1);
+	 vic_outb(VIC_SSxCR0_LOCAL_XFER_SINGLE|
+		  VIC_SSxCR0_A24|VIC_SSxCR0_D32, VIC_SS1CR0);
+	 vic_outb(VIC_SSxCR1_TF1(0xf)|
+		  VIC_SSxCR1_TF2(0xf), VIC_SS1CR1);
+         vic_outb(VIC_IFACE_CFG_NOHALT|
+		  VIC_IFACE_CFG_NOTURBO, VIC_IFACE_CFG);
+	 vic_outb(VIC_AMS_CODE(0), VIC_AMS);
+	 vic_outb(VIC_BXFER_CTRL_INTERLEAVE(0), VIC_BXFER_CTRL);
+	 vic_outb(0, VIC_BXFER_LEN_LO);
+	 vic_outb(0, VIC_BXFER_LEN_HI);
+	 vic_outb(VIC_REQ_CFG_FAIRNESS_DISABLED|
+		  VIC_REQ_CFG_LEVEL(3)|
+		  VIC_REQ_CFG_RR_ARBITRATION, VIC_REQ_CFG);
+	 vic_outb(VIC_RELEASE_BLKXFER_BLEN(0)|
+		  VIC_RELEASE_RWD, VIC_RELEASE);
+	 vic_outb(VIC_IC6_RUN, VIC_IC6);
+	 vic_outb(0, VIC_IC7);
+
+	 vic_show();
+}
+
+static void vic_start(void)
+{
+	vic_outb(VIC_INT_IPL(3)|
+		 VIC_INT_NOAUTO|
+		 VIC_INT_EDGE|
+		 VIC_INT_HIGH|
+		 VIC_INT_ENABLE, VIC_LINT7);
+}
+
+void __init baget_irq_setup(void)
+{
+	extern void bagetIRQ(void);
+
+        /* Now, it's safe to set the exception vector. */
+	set_except_vector(0, bagetIRQ);
+}
+
+extern void baget_machine_restart(char *command);
+extern void baget_machine_halt(void);
+extern void baget_machine_power_off(void);
+
+void __init baget_setup(void)
+{
+	printk("BT23/63-201n found.\n");
+	*BAGET_WRERR_ACK = 0;
+	irq_setup = baget_irq_setup;
+
+        _machine_restart   = baget_machine_restart;
+        _machine_halt      = baget_machine_halt;
+        _machine_power_off = baget_machine_power_off;
+
+	vac_init();
+	vic_init();
+	vac_start();
+	vic_start();
+}
diff --git a/release/src/linux/linux/arch/mips/baget/time.c b/release/src/linux/linux/arch/mips/baget/time.c
new file mode 100644
index 00000000..10e4590d
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/time.c
@@ -0,0 +1,98 @@
+/*
+ * time.c: Baget/MIPS specific time handling details
+ *
+ * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/timex.h>
+#include <linux/spinlock.h>
+
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/ptrace.h>
+#include <asm/system.h>
+
+#include <asm/baget/baget.h>
+
+extern rwlock_t xtime_lock;
+
+/*
+ *  To have precision clock, we need to fix available clock frequency
+ */
+#define FREQ_NOM  79125  /* Baget frequency ratio */
+#define FREQ_DEN  10000
+
+static inline int timer_intr_valid(void)
+{
+	static unsigned long long ticks, valid_ticks;
+
+	if (ticks++ * FREQ_DEN >= valid_ticks * FREQ_NOM) {
+		/*
+		 *  We need no overflow checks,
+		 *  due baget unable to work 3000 years...
+		 *  At least without reboot...
+		 */
+		valid_ticks++;
+		return 1;
+	}
+	return 0;
+}
+
+void static timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+{
+	if (timer_intr_valid()) {
+		sti();
+		do_timer(regs);
+	}
+}
+
+static void __init timer_enable(void)
+{
+	unsigned char ss0cr0 = vic_inb(VIC_SS0CR0);
+	ss0cr0 &= ~VIC_SS0CR0_TIMER_FREQ_MASK;
+	ss0cr0 |= VIC_SS0CR0_TIMER_FREQ_1000HZ;
+	vic_outb(ss0cr0, VIC_SS0CR0);
+
+	vic_outb(VIC_INT_IPL(6)|VIC_INT_NOAUTO|VIC_INT_EDGE|
+		 VIC_INT_LOW|VIC_INT_ENABLE, VIC_LINT2);
+}
+
+static struct irqaction timer_irq  =
+{ timer_interrupt, SA_INTERRUPT, 0, "timer", NULL, NULL};
+
+void __init time_init(void)
+{
+	if (setup_baget_irq(BAGET_VIC_TIMER_IRQ, &timer_irq) < 0)
+		printk("time_init: unable request irq for system timer\n");
+	timer_enable();
+	/* We don't call sti() here, because it is too early for baget */
+}
+
+void do_gettimeofday(struct timeval *tv)
+{
+	unsigned long flags;
+
+	read_lock_irqsave (&xtime_lock, flags);
+	*tv = xtime;
+	read_unlock_irqrestore (&xtime_lock, flags);
+}
+
+void do_settimeofday(struct timeval *tv)
+{
+	write_lock_irq (&xtime_lock);
+	xtime = *tv;
+	time_adjust = 0;		/* stop active adjtime() */
+	time_status |= STA_UNSYNC;
+	time_maxerror = NTP_PHASE_LIMIT;
+	time_esterror = NTP_PHASE_LIMIT;
+	write_unlock_irq (&xtime_lock);
+}
diff --git a/release/src/linux/linux/arch/mips/baget/vacserial.c b/release/src/linux/linux/arch/mips/baget/vacserial.c
new file mode 100644
index 00000000..bdeab61c
--- /dev/null
+++ b/release/src/linux/linux/arch/mips/baget/vacserial.c
@@ -0,0 +1,2884 @@
+/*
+ * vacserial.c: VAC UART serial driver
+ *              This code stealed and adopted from linux/drivers/char/serial.c
+ *              See that for author info
+ *
+ * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
+ */
+
+#undef  SERIAL_PARANOIA_CHECK
+#define CONFIG_SERIAL_NOPAUSE_IO
+#define SERIAL_DO_RESTART
+
+#define CONFIG_SERIAL_SHARE_IRQ
+
+/* Set of debugging defines */
+
+#undef  SERIAL_DEBUG_INTR
+#undef  SERIAL_DEBUG_OPEN
+#undef  SERIAL_DEBUG_FLOW
+#undef  SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
+
+#define RS_STROBE_TIME (10*HZ)
+#define RS_ISR_PASS_LIMIT  2 /* Beget is not a super-computer (old=256) */
+
+#define IRQ_T(state) \
+ ((state->flags & ASYNC_SHARE_IRQ) ? SA_SHIRQ : SA_INTERRUPT)
+
+#define SERIAL_INLINE
+
+#if defined(MODULE) && defined(SERIAL_DEBUG_MCOUNT)
+#define DBG_CNT(s) baget_printk("(%s):[%x] refc=%d, serc=%d, ttyc=%d-> %s\n", \
+  kdevname(tty->device),(info->flags),serial_refcount,info->count,tty->count,s)
+#else
+#define DBG_CNT(s)
+#endif
+
+#define  QUAD_UART_SPEED  /* Useful for Baget */
+
+/*
+ * End of serial driver configuration section.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/serial.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/fcntl.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#ifdef CONFIG_SERIAL_CONSOLE
+#include <linux/console.h>
+#endif
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+#include <asm/bitops.h>
+#include <asm/serial.h>
+#include <asm/baget/baget.h>
+
+#define BAGET_VAC_UART_IRQ 0x35
+
+/*
+ *  Implementation note:
+ *  It was descovered by means of advanced electronic tools,
+ *  if the driver works via TX_READY interrupts then VIC generates
+ *  strange self-eliminating traps. Thus, the driver is rewritten to work
+ *  via TX_EMPTY
+ */
+
+/* VAC-specific check/debug switches */
+
+#undef CHECK_REG_INDEX
+#undef DEBUG_IO_PORT_A
+
+#ifdef SERIAL_INLINE
+#define _INLINE_ inline
+#endif
+
+static char *serial_name = "VAC Serial driver";
+static char *serial_version = "4.26";
+
+static DECLARE_TASK_QUEUE(tq_serial);
+
+static struct tty_driver serial_driver, callout_driver;
+static int serial_refcount;
+
+/* number of characters left in xmit buffer before we ask for more */
+#define WAKEUP_CHARS 256
+
+/*
+ * IRQ_timeout		- How long the timeout should be for each IRQ
+ * 				should be after the IRQ has been active.
+ */
+
+static struct async_struct *IRQ_ports[NR_IRQS];
+static int IRQ_timeout[NR_IRQS];
+#ifdef CONFIG_SERIAL_CONSOLE
+static struct console sercons;
+#endif
+
+static void autoconfig(struct serial_state * info);
+static void change_speed(struct async_struct *info);
+static void rs_wait_until_sent(struct tty_struct *tty, int timeout);
+static void rs_timer(unsigned long dummy);
+
+static struct timer_list vacs_timer;
+
+/*
+ * Here we define the default xmit fifo size used for each type of
+ * UART
+ */
+static struct serial_uart_config uart_config[] = {
+        { "unknown",  1, 0 },  /* Must go first  --  used as unasigned */
+        { "VAC UART", 1, 0 }
+};
+#define VAC_UART_TYPE 1   /* Just index in above array */
+
+static struct serial_state rs_table[] = {
+/*
+ * VAC has tricky layout for pair of his SIO registers,
+ *  so we need special function to access ones.
+ *  To identify port we use their TX offset
+ */
+        { 0, 9600, VAC_UART_B_TX, BAGET_VAC_UART_IRQ,
+          STD_COM_FLAGS }, /* VAC UART B */
+        { 0, 9600, VAC_UART_A_TX, BAGET_VAC_UART_IRQ,
+          STD_COM_FLAGS }  /* VAC UART A */
+};
+
+#define NR_PORTS	(sizeof(rs_table)/sizeof(struct serial_state))
+
+static struct tty_struct *serial_table[NR_PORTS];
+static struct termios *serial_termios[NR_PORTS];
+static struct termios *serial_termios_locked[NR_PORTS];
+
+#ifndef MIN
+#define MIN(a,b)	((a) < (b) ? (a) : (b))
+#endif
+
+/*
+ * tmp_buf is used as a temporary buffer by serial_write.  We need to
+ * lock it in case the copy_from_user blocks while swapping in a page,
+ * and some other program tries to do a serial write at the same time.
+ * Since the lock will only come under contention when the system is
+ * swapping and available memory is low, it makes sense to share one
+ * buffer across all the serial ports, since it significantly saves
+ * memory if large numbers of serial ports are open.
+ */
+static unsigned char *tmp_buf;
+static DECLARE_MUTEX(tmp_buf_sem);
+
+static inline int serial_paranoia_check(struct async_struct *info,
+					kdev_t device, const char *routine)
+{
+#ifdef SERIAL_PARANOIA_CHECK
+	static const char *badmagic =
+		"Warning: bad magic number for serial struct (%s) in %s\n";
+	static const char *badinfo =
+		"Warning: null async_struct for (%s) in %s\n";
+
+	if (!info) {
+		printk(badinfo, kdevname(device), routine);
+		return 1;
+	}
+	if (info->magic != SERIAL_MAGIC) {
+		printk(badmagic, kdevname(device), routine);
+		return 1;
+	}
+#endif
+	return 0;
+}
+
+/*
+  To unify UART A/B access we will use following function
+  to compute register offsets by register index.
+ */
+
+#define VAC_UART_MODE       0
+#define VAC_UART_TX         1
+#define VAC_UART_RX         2
+#define VAC_UART_INT_MASK   3
+#define VAC_UART_INT_STATUS 4
+
+#define VAC_UART_REG_NR     5
+
+static inline int uart_offset_map(unsigned long port, int reg_index)
+{
+	static const unsigned int ind_to_reg[VAC_UART_REG_NR][NR_PORTS] = {
+		{ VAC_UART_B_MODE,       VAC_UART_A_MODE       },
+		{ VAC_UART_B_TX,         VAC_UART_A_TX         },
+		{ VAC_UART_B_RX,         VAC_UART_A_RX         },
+		{ VAC_UART_B_INT_MASK,   VAC_UART_A_INT_MASK   },
+		{ VAC_UART_B_INT_STATUS, VAC_UART_A_INT_STATUS }
+	};
+#ifdef CHECK_REG_INDEX
+	if (reg_index > VAC_UART_REG_NR) panic("vacserial: bad reg_index");
+#endif
+        return ind_to_reg[reg_index][port == VAC_UART_B_TX ? 0 : 1];
+}
+
+static inline unsigned int serial_inw(struct async_struct *info, int offset)
+{
+	int val = vac_inw(uart_offset_map(info->port,offset));
+#ifdef DEBUG_IO_PORT_A
+	if (info->port == VAC_UART_A_TX)
+		printk("UART_A_IN: reg = 0x%04x, val = 0x%04x\n",
+		       uart_offset_map(info->port,offset), val);
+#endif
+	return val;
+}
+
+static inline unsigned int serial_inp(struct async_struct *info, int offset)
+{
+	return serial_inw(info, offset);
+}
+
+static inline unsigned int serial_in(struct async_struct *info, int offset)
+{
+	return serial_inw(info, offset);
+}
+
+static inline void serial_outw(struct async_struct *info,int offset, int value)
+{
+#ifdef DEBUG_IO_PORT_A
+	if (info->port == VAC_UART_A_TX)
+		printk("UART_A_OUT: offset = 0x%04x, val = 0x%04x\n",
+		       uart_offset_map(info->port,offset), value);
+#endif
+	vac_outw(value, uart_offset_map(info->port,offset));
+}
+
+static inline void serial_outp(struct async_struct *info,int offset, int value)
+{
+	serial_outw(info,offset,value);
+}
+
+static inline void serial_out(struct async_struct *info,int offset, int value)
+{
+	serial_outw(info,offset,value);
+}
+
+/*
+ * ------------------------------------------------------------
+ * rs_stop() and rs_start()
+ *
+ * This routines are called before setting or resetting tty->stopped.
+ * They enable or disable transmitter interrupts, as necessary.
+ * ------------------------------------------------------------
+ */
+static void rs_stop(struct tty_struct *tty)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+	unsigned long flags;
+
+	if (serial_paranoia_check(info, tty->device, "rs_stop"))
+		return;
+
+	save_flags(flags); cli();
+        if (info->IER & VAC_UART_INT_TX_EMPTY) {
+                info->IER &= ~VAC_UART_INT_TX_EMPTY;
+		serial_out(info, VAC_UART_INT_MASK, info->IER);
+	}
+	restore_flags(flags);
+}
+
+static void rs_start(struct tty_struct *tty)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+	unsigned long flags;
+
+	if (serial_paranoia_check(info, tty->device, "rs_start"))
+		return;
+
+	save_flags(flags); cli();
+	if (info->xmit_cnt && info->xmit_buf
+            && !(info->IER & VAC_UART_INT_TX_EMPTY)) {
+                info->IER |= VAC_UART_INT_TX_EMPTY;
+		serial_out(info, VAC_UART_INT_MASK, info->IER);
+	}
+	restore_flags(flags);
+}
+
+/*
+ * ----------------------------------------------------------------------
+ *
+ * Here starts the interrupt handling routines.  All of the following
+ * subroutines are declared as inline and are folded into
+ * rs_interrupt().  They were separated out for readability's sake.
+ *
+ * Note: rs_interrupt() is a "fast" interrupt, which means that it
+ * runs with interrupts turned off.  People who may want to modify
+ * rs_interrupt() should try to keep the interrupt handler as fast as
+ * possible.  After you are done making modifications, it is not a bad
+ * idea to do:
+ *
+ * gcc -S -DKERNEL -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer serial.c
+ *
+ * and look at the resulting assemble code in serial.s.
+ *
+ * 				- Ted Ts'o (tytso@mit.edu), 7-Mar-93
+ * -----------------------------------------------------------------------
+ */
+
+/*
+ * This routine is used by the interrupt handler to schedule
+ * processing in the software interrupt portion of the driver.
+ */
+static _INLINE_ void rs_sched_event(struct async_struct *info,
+				  int event)
+{
+	info->event |= 1 << event;
+	queue_task(&info->tqueue, &tq_serial);
+	mark_bh(SERIAL_BH);
+}
+
+static _INLINE_ void receive_chars(struct async_struct *info,
+				   int *status)
+{
+	struct tty_struct *tty = info->tty;
+	unsigned short rx;
+	unsigned char ch;
+	int ignored = 0;
+	struct	async_icount *icount;
+
+	icount = &info->state->icount;
+	do {
+		rx = serial_inw(info, VAC_UART_RX);
+		ch = VAC_UART_RX_DATA_MASK & rx;
+
+		if (tty->flip.count >= TTY_FLIPBUF_SIZE)
+			break;
+		*tty->flip.char_buf_ptr = ch;
+		icount->rx++;
+
+#ifdef SERIAL_DEBUG_INTR
+		baget_printk("DR%02x:%02x...", rx, *status);
+#endif
+		*tty->flip.flag_buf_ptr = 0;
+		if (*status & (VAC_UART_STATUS_RX_BREAK_CHANGE
+			       | VAC_UART_STATUS_RX_ERR_PARITY
+			       | VAC_UART_STATUS_RX_ERR_FRAME
+			       | VAC_UART_STATUS_RX_ERR_OVERRUN)) {
+			/*
+			 * For statistics only
+			 */
+			if (*status & VAC_UART_STATUS_RX_BREAK_CHANGE) {
+				*status &= ~(VAC_UART_STATUS_RX_ERR_FRAME
+					     | VAC_UART_STATUS_RX_ERR_PARITY);
+				icount->brk++;
+			} else if (*status & VAC_UART_STATUS_RX_ERR_PARITY)
+				icount->parity++;
+			else if (*status & VAC_UART_STATUS_RX_ERR_FRAME)
+				icount->frame++;
+			if (*status & VAC_UART_STATUS_RX_ERR_OVERRUN)
+				icount->overrun++;
+
+			/*
+			 * Now check to see if character should be
+			 * ignored, and mask off conditions which
+			 * should be ignored.
+			 */
+			if (*status & info->ignore_status_mask) {
+				if (++ignored > 100)
+					break;
+				goto ignore_char;
+			}
+			*status &= info->read_status_mask;
+
+			if (*status & (VAC_UART_STATUS_RX_BREAK_CHANGE)) {
+#ifdef SERIAL_DEBUG_INTR
+				baget_printk("handling break....");
+#endif
+				*tty->flip.flag_buf_ptr = TTY_BREAK;
+				if (info->flags & ASYNC_SAK)
+					do_SAK(tty);
+			} else if (*status & VAC_UART_STATUS_RX_ERR_PARITY)
+				*tty->flip.flag_buf_ptr = TTY_PARITY;
+			else if (*status & VAC_UART_STATUS_RX_ERR_FRAME)
+				*tty->flip.flag_buf_ptr = TTY_FRAME;
+			if (*status & VAC_UART_STATUS_RX_ERR_OVERRUN) {
+				/*
+				 * Overrun is special, since it's
+				 * reported immediately, and doesn't
+				 * affect the current character
+				 */
+				if (tty->flip.count < TTY_FLIPBUF_SIZE) {
+					tty->flip.count++;
+					tty->flip.flag_buf_ptr++;
+					tty->flip.char_buf_ptr++;
+					*tty->flip.flag_buf_ptr = TTY_OVERRUN;
+				}
+			}
+		}
+		tty->flip.flag_buf_ptr++;
+		tty->flip.char_buf_ptr++;
+		tty->flip.count++;
+	ignore_char:
+		*status = serial_inw(info, VAC_UART_INT_STATUS);
+	} while ((*status & VAC_UART_STATUS_RX_READY));
+	tty_flip_buffer_push(tty);
+}
+
+static _INLINE_ void transmit_chars(struct async_struct *info, int *intr_done)
+{
+	int count;
+
+	if (info->x_char) {
+		serial_outw(info, VAC_UART_TX,
+			    (((unsigned short)info->x_char)<<8));
+		info->state->icount.tx++;
+		info->x_char = 0;
+		if (intr_done)
+			*intr_done = 0;
+		return;
+	}
+	if ((info->xmit_cnt <= 0) || info->tty->stopped ||
+	    info->tty->hw_stopped) {
+                info->IER &= ~VAC_UART_INT_TX_EMPTY;
+		serial_outw(info, VAC_UART_INT_MASK, info->IER);
+		return;
+	}
+	count = info->xmit_fifo_size;
+	do {
+		serial_out(info, VAC_UART_TX,
+			   (unsigned short)info->xmit_buf[info->xmit_tail++] \
+			   << 8);
+		info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);
+		info->state->icount.tx++;
+		if (--info->xmit_cnt <= 0)
+			break;
+	} while (--count > 0);
+
+	if (info->xmit_cnt < WAKEUP_CHARS)
+		rs_sched_event(info, RS_EVENT_WRITE_WAKEUP);
+
+#ifdef SERIAL_DEBUG_INTR
+	baget_printk("THRE...");
+#endif
+	if (intr_done)
+		*intr_done = 0;
+
+	if (info->xmit_cnt <= 0) {
+                info->IER &= ~VAC_UART_INT_TX_EMPTY;
+		serial_outw(info, VAC_UART_INT_MASK, info->IER);
+	}
+}
+
+static _INLINE_ void check_modem_status(struct async_struct *info)
+{
+}
+
+#ifdef CONFIG_SERIAL_SHARE_IRQ
+
+
+/*
+ *  Specific functions needed for VAC UART interrupt enter/leave
+ */
+
+#define VAC_INT_CTRL_UART_ENABLE  \
+   (VAC_INT_CTRL_TIMER_PIO10|VAC_INT_CTRL_UART_B_PIO7|VAC_INT_CTRL_UART_A_PIO7)
+
+#define VAC_INT_CTRL_UART_DISABLE(info) \
+   (VAC_INT_CTRL_TIMER_PIO10 | \
+    ((info->port == VAC_UART_A_TX) ? \
+     (VAC_INT_CTRL_UART_A_DISABLE|VAC_INT_CTRL_UART_B_PIO7) : \
+     (VAC_INT_CTRL_UART_A_PIO7|VAC_INT_CTRL_UART_B_DISABLE)))
+
+/*
+ *  Following two functions were proposed by Pavel Osipenko
+ *  to make VAC/VIC behaviour more regular.
+ */
+static void intr_begin(struct async_struct* info)
+{
+	serial_outw(info, VAC_UART_INT_MASK, 0);
+}
+
+static void intr_end(struct async_struct* info)
+{
+	vac_outw(VAC_INT_CTRL_UART_DISABLE(info), VAC_INT_CTRL);
+	vac_outw(VAC_INT_CTRL_UART_ENABLE,        VAC_INT_CTRL);
+
+	serial_outw(info, VAC_UART_INT_MASK, info->IER);
+}
+
+/*
+ * This is the serial driver's generic interrupt routine
+ */
+static void rs_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+{
+	int status;
+	struct async_struct * info;
+	int pass_counter = 0;
+	struct async_struct *end_mark = 0;
+
+#ifdef SERIAL_DEBUG_INTR
+	baget_printk("rs_interrupt(%d)...", irq);
+#endif
+
+	info = IRQ_ports[irq];
+	if (!info)
+		return;
+
+	do {
+	        intr_begin(info);  /* Mark we begin port handling */
+
+		if (!info->tty ||
+		     (serial_inw (info, VAC_UART_INT_STATUS)
+		      & VAC_UART_STATUS_INTS) == 0)
+		    {
+			if (!end_mark)
+				end_mark = info;
+			goto next;
+		    }
+		end_mark = 0;
+
+		info->last_active = jiffies;
+
+		status = serial_inw(info, VAC_UART_INT_STATUS);
+#ifdef SERIAL_DEBUG_INTR
+		baget_printk("status = %x...", status);
+#endif
+		if (status & VAC_UART_STATUS_RX_READY) {
+			receive_chars(info, &status);
+		}
+		check_modem_status(info);
+                if (status & VAC_UART_STATUS_TX_EMPTY)
+			transmit_chars(info, 0);
+
+	next:
+		intr_end(info);   /* Mark this port handled */
+
+		info = info->next_port;
+		if (!info) {
+			info = IRQ_ports[irq];
+			if (pass_counter++ > RS_ISR_PASS_LIMIT) {
+				break; 	/* Prevent infinite loops */
+			}
+			continue;
+		}
+	} while (end_mark != info);
+#ifdef SERIAL_DEBUG_INTR
+	baget_printk("end.\n");
+#endif
+
+
+}
+#endif /* #ifdef CONFIG_SERIAL_SHARE_IRQ */
+
+
+/* The original driver was simplified here:
+   two functions were joined to reduce code */
+
+#define rs_interrupt_single rs_interrupt
+
+
+/*
+ * -------------------------------------------------------------------
+ * Here ends the serial interrupt routines.
+ * -------------------------------------------------------------------
+ */
+
+/*
+ * This routine is used to handle the "bottom half" processing for the
+ * serial driver, known also the "software interrupt" processing.
+ * This processing is done at the kernel interrupt level, after the
+ * rs_interrupt() has returned, BUT WITH INTERRUPTS TURNED ON.  This
+ * is where time-consuming activities which can not be done in the
+ * interrupt driver proper are done; the interrupt driver schedules
+ * them using rs_sched_event(), and they get done here.
+ */
+static void do_serial_bh(void)
+{
+	run_task_queue(&tq_serial);
+}
+
+static void do_softint(void *private_)
+{
+	struct async_struct	*info = (struct async_struct *) private_;
+	struct tty_struct	*tty;
+
+	tty = info->tty;
+	if (!tty)
+		return;
+
+	if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event)) {
+		if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
+		    tty->ldisc.write_wakeup)
+			(tty->ldisc.write_wakeup)(tty);
+		wake_up_interruptible(&tty->write_wait);
+	}
+}
+
+/*
+ * ---------------------------------------------------------------
+ * Low level utility subroutines for the serial driver:  routines to
+ * figure out the appropriate timeout for an interrupt chain, routines
+ * to initialize and startup a serial port, and routines to shutdown a
+ * serial port.  Useful stuff like that.
+ * ---------------------------------------------------------------
+ */
+
+/*
+ * This routine figures out the correct timeout for a particular IRQ.
+ * It uses the smallest timeout of all of the serial ports in a
+ * particular interrupt chain.  Now only used for IRQ 0....
+ */
+static void figure_IRQ_timeout(int irq)
+{
+	struct	async_struct	*info;
+	int	timeout = 60*HZ;	/* 60 seconds === a long time :-) */
+
+	info = IRQ_ports[irq];
+	if (!info) {
+		IRQ_timeout[irq] = 60*HZ;
+		return;
+	}
+	while (info) {
+		if (info->timeout < timeout)
+			timeout = info->timeout;
+		info = info->next_port;
+	}
+	if (!irq)
+		timeout = timeout / 2;
+	IRQ_timeout[irq] = timeout ? timeout : 1;
+}
+
+static int startup(struct async_struct * info)
+{
+	unsigned long flags;
+	int	retval=0;
+	void (*handler)(int, void *, struct pt_regs *);
+	struct serial_state *state= info->state;
+	unsigned long page;
+
+	page = get_free_page(GFP_KERNEL);
+	if (!page)
+		return -ENOMEM;
+
+	save_flags(flags); cli();
+
+	if (info->flags & ASYNC_INITIALIZED) {
+		free_page(page);
+		goto errout;
+	}
+	if (!state->port || !state->type) {
+		if (info->tty)
+			set_bit(TTY_IO_ERROR, &info->tty->flags);
+		free_page(page);
+		goto errout;
+	}
+	if (info->xmit_buf)
+		free_page(page);
+	else
+		info->xmit_buf = (unsigned char *) page;
+
+#ifdef SERIAL_DEBUG_OPEN
+	baget_printk("starting up ttys%d (irq %d)...", info->line, state->irq);
+#endif
+
+	if (uart_config[info->state->type].flags & UART_STARTECH) {
+		/* Wake up UART */
+		serial_outp(info, VAC_UART_MODE, 0);
+		serial_outp(info, VAC_UART_INT_MASK, 0);
+	}
+
+	/*
+	 * Allocate the IRQ if necessary
+	 */
+	if (state->irq && (!IRQ_ports[state->irq] ||
+			  !IRQ_ports[state->irq]->next_port)) {
+
+		if (IRQ_ports[state->irq]) {
+#ifdef CONFIG_SERIAL_SHARE_IRQ
+			free_irq(state->irq, NULL);
+				handler = rs_interrupt;
+#else
+			retval = -EBUSY;
+			goto errout;
+#endif /* CONFIG_SERIAL_SHARE_IRQ */
+		} else
+			handler = rs_interrupt_single;
+
+
+		retval = request_irq(state->irq, handler, IRQ_T(state),
+				     "serial", NULL);
+		if (retval) {
+			if (capable(CAP_SYS_ADMIN)) {
+				if (info->tty)
+					set_bit(TTY_IO_ERROR,
+						&info->tty->flags);
+				retval = 0;
+			}
+			goto errout;
+		}
+	}
+
+	/*
+	 * Insert serial port into IRQ chain.
+	 */
+	info->prev_port = 0;
+	info->next_port = IRQ_ports[state->irq];
+	if (info->next_port)
+		info->next_port->prev_port = info;
+	IRQ_ports[state->irq] = info;
+	figure_IRQ_timeout(state->irq);
+
+	/*
+	 * Clear the interrupt registers.
+	 */
+     /* (void) serial_inw(info, VAC_UART_INT_STATUS); */   /* (see above) */
+	(void) serial_inw(info, VAC_UART_RX);
+
+	/*
+	 * Now, initialize the UART
+	 */
+	serial_outp(info, VAC_UART_MODE, VAC_UART_MODE_INITIAL); /*reset DLAB*/
+
+	/*
+	 * Finally, enable interrupts
+	 */
+	info->IER = VAC_UART_INT_RX_BREAK_CHANGE | VAC_UART_INT_RX_ERRS | \
+                        VAC_UART_INT_RX_READY;
+	serial_outp(info, VAC_UART_INT_MASK, info->IER); /*enable interrupts*/
+
+	/*
+	 * And clear the interrupt registers again for luck.
+	 */
+	(void)serial_inp(info, VAC_UART_INT_STATUS);
+	(void)serial_inp(info, VAC_UART_RX);
+
+	if (info->tty)
+		clear_bit(TTY_IO_ERROR, &info->tty->flags);
+	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
+
+	/*
+	 * Set up serial timers...
+	 */
+	mod_timer(&vacs_timer, jiffies + 2*HZ/100);
+
+	/*
+	 * and set the speed of the serial port
+	 */
+	change_speed(info);
+
+	info->flags |= ASYNC_INITIALIZED;
+	restore_flags(flags);
+	return 0;
+
+errout:
+	restore_flags(flags);
+	return retval;
+}
+
+/*
+ * This routine will shutdown a serial port; interrupts are disabled, and
+ * DTR is dropped if the hangup on close termio flag is on.
+ */
+static void shutdown(struct async_struct * info)
+{
+	unsigned long	flags;
+	struct serial_state *state;
+	int		retval;
+
+	if (!(info->flags & ASYNC_INITIALIZED))
+		return;
+
+	state = info->state;
+
+#ifdef SERIAL_DEBUG_OPEN
+	baget_printk("Shutting down serial port %d (irq %d)....", info->line,
+	       state->irq);
+#endif
+
+	save_flags(flags); cli(); /* Disable interrupts */
+
+	/*
+	 * clear delta_msr_wait queue to avoid mem leaks: we may free the irq
+	 * here so the queue might never be waken up
+	 */
+	wake_up_interruptible(&info->delta_msr_wait);
+
+	/*
+	 * First unlink the serial port from the IRQ chain...
+	 */
+	if (info->next_port)
+		info->next_port->prev_port = info->prev_port;
+	if (info->prev_port)
+		info->prev_port->next_port = info->next_port;
+	else
+		IRQ_ports[state->irq] = info->next_port;
+	figure_IRQ_timeout(state->irq);
+
+	/*
+	 * Free the IRQ, if necessary
+	 */
+	if (state->irq && (!IRQ_ports[state->irq] ||
+			  !IRQ_ports[state->irq]->next_port)) {
+		if (IRQ_ports[state->irq]) {
+			free_irq(state->irq, NULL);
+			retval = request_irq(state->irq, rs_interrupt_single,
+					     IRQ_T(state), "serial", NULL);
+
+			if (retval)
+				printk("serial shutdown: request_irq: error %d"
+				       "  Couldn't reacquire IRQ.\n", retval);
+		} else
+			free_irq(state->irq, NULL);
+	}
+
+	if (info->xmit_buf) {
+		free_page((unsigned long) info->xmit_buf);
+		info->xmit_buf = 0;
+	}
+
+	info->IER = 0;
+	serial_outp(info, VAC_UART_INT_MASK, 0x00);	/* disable all intrs */
+
+	/* disable break condition */
+	serial_out(info, VAC_UART_MODE, serial_inp(info, VAC_UART_MODE) & \
+		   ~VAC_UART_MODE_SEND_BREAK);
+
+	if (info->tty)
+		set_bit(TTY_IO_ERROR, &info->tty->flags);
+
+	info->flags &= ~ASYNC_INITIALIZED;
+	restore_flags(flags);
+}
+
+/*
+ *  When we set line mode, we call this function
+ *  for Baget-specific adjustments.
+ */
+
+static inline unsigned short vac_uart_mode_fixup (unsigned short cval)
+{
+#ifdef QUAD_UART_SPEED
+	/*
+	 *  When we are using 4-x advantage in speed:
+	 *
+	 *  Disadvantage : can't support 75, 150 bauds
+	 *  Advantage    : can support 19200, 38400 bauds
+	 */
+	char speed = 7 & (cval >> 10);
+	cval &= ~(7 << 10);
+	cval |= VAC_UART_MODE_BAUD(speed-2);
+#endif
+
+	/*
+	 *  In general, we have Tx and Rx ON all time
+	 *  and use int mask flag for their disabling.
+	 */
+	cval |= VAC_UART_MODE_RX_ENABLE;
+	cval |= VAC_UART_MODE_TX_ENABLE;
+	cval |= VAC_UART_MODE_CHAR_RX_ENABLE;
+	cval |= VAC_UART_MODE_CHAR_TX_ENABLE;
+
+        /* Low 4 bits are not used in UART */
+	cval &= ~0xf;
+
+	return cval;
+}
+
+/*
+ * This routine is called to set the UART divisor registers to match
+ * the specified baud rate for a serial port.
+ */
+static void change_speed(struct async_struct *info)
+{
+	unsigned short port;
+	int	quot = 0, baud_base, baud;
+	unsigned cflag, cval;
+	int	bits;
+	unsigned long	flags;
+
+	if (!info->tty || !info->tty->termios)
+		return;
+	cflag = info->tty->termios->c_cflag;
+	if (!(port = info->port))
+		return;
+
+	/* byte size and parity */
+	switch (cflag & CSIZE) {
+	      case CS7: cval = 0x0;  bits = 9; break;
+	      case CS8: cval = VAC_UART_MODE_8BIT_CHAR; bits = 10; break;
+	      /* Never happens, but GCC is too dumb to figure it out */
+	      case CS5:
+	      case CS6:
+	      default:  cval = 0x0; bits = 9; break;
+	      }
+	cval &= ~VAC_UART_MODE_PARITY_ENABLE;
+	if (cflag & PARENB) {
+		cval |= VAC_UART_MODE_PARITY_ENABLE;
+		bits++;
+	}
+	if (cflag & PARODD)
+		cval |= VAC_UART_MODE_PARITY_ODD;
+
+	/* Determine divisor based on baud rate */
+	baud = tty_get_baud_rate(info->tty);
+	if (!baud)
+		baud = 9600;    /* B0 transition handled in rs_set_termios */
+	baud_base = info->state->baud_base;
+	if (baud == 38400 &&
+	    ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
+		quot = info->state->custom_divisor;
+	else {
+		if (baud == 134)
+			/* Special case since 134 is really 134.5 */
+			quot = (2*baud_base / 269);
+		else if (baud)
+			quot = baud_base / baud;
+	}
+	/* If the quotient is ever zero, default to 9600 bps */
+	if (!quot)
+		quot = baud_base / 9600;
+	info->quot = quot;
+	info->timeout = ((info->xmit_fifo_size*HZ*bits*quot) / baud_base);
+	info->timeout += HZ/50;		/* Add .02 seconds of slop */
+
+	serial_out(info, VAC_UART_INT_MASK, info->IER);
+
+	/*
+	 * Set up parity check flag
+	 */
+#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
+
+	info->read_status_mask = VAC_UART_STATUS_RX_ERR_OVERRUN | \
+                VAC_UART_STATUS_TX_EMPTY | VAC_UART_STATUS_RX_READY;
+	if (I_INPCK(info->tty))
+		info->read_status_mask |= VAC_UART_STATUS_RX_ERR_FRAME | \
+			VAC_UART_STATUS_RX_ERR_PARITY;
+	if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+		info->read_status_mask |= VAC_UART_STATUS_RX_BREAK_CHANGE;
+
+	/*
+	 * Characters to ignore
+	 */
+	info->ignore_status_mask = 0;
+	if (I_IGNPAR(info->tty))
+		info->ignore_status_mask |= VAC_UART_STATUS_RX_ERR_PARITY | \
+			VAC_UART_STATUS_RX_ERR_FRAME;
+	if (I_IGNBRK(info->tty)) {
+		info->ignore_status_mask |= VAC_UART_STATUS_RX_BREAK_CHANGE;
+		/*
+		 * If we're ignore parity and break indicators, ignore
+		 * overruns too.  (For real raw support).
+		 */
+		if (I_IGNPAR(info->tty))
+			info->ignore_status_mask |= \
+				VAC_UART_STATUS_RX_ERR_OVERRUN;
+	}
+	/*
+	 * !!! ignore all characters if CREAD is not set
+	 */
+	if ((cflag & CREAD) == 0)
+		info->ignore_status_mask |= VAC_UART_STATUS_RX_READY;
+	save_flags(flags); cli();
+
+
+	switch (baud) {
+	default:
+	case 9600:
+		cval |= VAC_UART_MODE_BAUD(7);
+		break;
+	case 4800:
+		cval |= VAC_UART_MODE_BAUD(6);
+		break;
+	case 2400:
+		cval |= VAC_UART_MODE_BAUD(5);
+		break;
+	case 1200:
+		cval |= VAC_UART_MODE_BAUD(4);
+		break;
+	case 600:
+		cval |= VAC_UART_MODE_BAUD(3);
+		break;
+	case 300:
+		cval |= VAC_UART_MODE_BAUD(2);
+		break;
+#ifndef QUAD_UART_SPEED
+	case 150:
+#else
+	case 38400:
+#endif
+		cval |= VAC_UART_MODE_BAUD(1);
+		break;
+#ifndef QUAD_UART_SPEED
+	case 75:
+#else
+	case 19200:
+#endif
+		cval |= VAC_UART_MODE_BAUD(0);
+		break;
+	}
+
+	/* Baget VAC need some adjustments for computed value */
+	cval = vac_uart_mode_fixup(cval);
+
+	serial_outp(info, VAC_UART_MODE, cval);
+	restore_flags(flags);
+}
+
+static void rs_put_char(struct tty_struct *tty, unsigned char ch)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+	unsigned long flags;
+
+	if (serial_paranoia_check(info, tty->device, "rs_put_char"))
+		return;
+
+	if (!tty || !info->xmit_buf)
+		return;
+
+	save_flags(flags); cli();
+	if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1) {
+		restore_flags(flags);
+		return;
+	}
+
+	info->xmit_buf[info->xmit_head++] = ch;
+	info->xmit_head &= SERIAL_XMIT_SIZE-1;
+	info->xmit_cnt++;
+	restore_flags(flags);
+}
+
+static void rs_flush_chars(struct tty_struct *tty)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+	unsigned long flags;
+
+	if (serial_paranoia_check(info, tty->device, "rs_flush_chars"))
+		return;
+
+	if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
+	    !info->xmit_buf)
+		return;
+
+	save_flags(flags); cli();
+        info->IER |= VAC_UART_INT_TX_EMPTY;
+	serial_out(info, VAC_UART_INT_MASK, info->IER);
+	restore_flags(flags);
+}
+
+static int rs_write(struct tty_struct * tty, int from_user,
+		    const unsigned char *buf, int count)
+{
+	int	c, ret = 0;
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+	unsigned long flags;
+
+	if (serial_paranoia_check(info, tty->device, "rs_write"))
+		return 0;
+
+	if (!tty || !info->xmit_buf || !tmp_buf)
+		return 0;
+
+	save_flags(flags);
+	if (from_user) {
+		down(&tmp_buf_sem);
+		while (1) {
+			c = MIN(count,
+				MIN(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
+				    SERIAL_XMIT_SIZE - info->xmit_head));
+			if (c <= 0)
+				break;
+
+			c -= copy_from_user(tmp_buf, buf, c);
+			if (!c) {
+				if (!ret)
+					ret = -EFAULT;
+				break;
+			}
+			cli();
+			c = MIN(c, MIN(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
+				       SERIAL_XMIT_SIZE - info->xmit_head));
+			memcpy(info->xmit_buf + info->xmit_head, tmp_buf, c);
+			info->xmit_head = ((info->xmit_head + c) &
+					   (SERIAL_XMIT_SIZE-1));
+			info->xmit_cnt += c;
+			restore_flags(flags);
+			buf += c;
+			count -= c;
+			ret += c;
+		}
+		up(&tmp_buf_sem);
+	} else {
+		while (1) {
+			cli();
+			c = MIN(count,
+				MIN(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
+				    SERIAL_XMIT_SIZE - info->xmit_head));
+			if (c <= 0) {
+				restore_flags(flags);
+				break;
+			}
+			memcpy(info->xmit_buf + info->xmit_head, buf, c);
+			info->xmit_head = ((info->xmit_head + c) &
+					   (SERIAL_XMIT_SIZE-1));
+			info->xmit_cnt += c;
+			restore_flags(flags);
+			buf += c;
+			count -= c;
+			ret += c;
+		}
+	}
+	if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped &&
+            !(info->IER & VAC_UART_INT_TX_EMPTY)) {
+                info->IER |= VAC_UART_INT_TX_EMPTY;
+		serial_out(info, VAC_UART_INT_MASK, info->IER);
+	}
+	return ret;
+}
+
+static int rs_write_room(struct tty_struct *tty)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+	int	ret;
+
+	if (serial_paranoia_check(info, tty->device, "rs_write_room"))
+		return 0;
+	ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1;
+	if (ret < 0)
+		ret = 0;
+	return ret;
+}
+
+static int rs_chars_in_buffer(struct tty_struct *tty)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+
+	if (serial_paranoia_check(info, tty->device, "rs_chars_in_buffer"))
+		return 0;
+	return info->xmit_cnt;
+}
+
+static void rs_flush_buffer(struct tty_struct *tty)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+	unsigned long flags;
+
+	if (serial_paranoia_check(info, tty->device, "rs_flush_buffer"))
+		return;
+
+	save_flags(flags); cli();
+	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
+	restore_flags(flags);
+
+	wake_up_interruptible(&tty->write_wait);
+	if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
+	    tty->ldisc.write_wakeup)
+		(tty->ldisc.write_wakeup)(tty);
+}
+
+/*
+ * This function is used to send a high-priority XON/XOFF character to
+ * the device
+ */
+static void rs_send_xchar(struct tty_struct *tty, char ch)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+
+	if (serial_paranoia_check(info, tty->device, "rs_send_char"))
+		return;
+
+	info->x_char = ch;
+	if (ch) {
+		/* Make sure transmit interrupts are on */
+                info->IER |= VAC_UART_INT_TX_EMPTY;
+		serial_out(info, VAC_UART_INT_MASK, info->IER);
+	}
+}
+
+/*
+ * ------------------------------------------------------------
+ * rs_throttle()
+ *
+ * This routine is called by the upper-layer tty layer to signal that
+ * incoming characters should be throttled.
+ * ------------------------------------------------------------
+ */
+static void rs_throttle(struct tty_struct * tty)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+
+#ifdef SERIAL_DEBUG_THROTTLE
+	char	buf[64];
+
+	baget_printk("throttle %s: %d....\n", tty_name(tty, buf),
+	       tty->ldisc.chars_in_buffer(tty));
+#endif
+
+	if (serial_paranoia_check(info, tty->device, "rs_throttle"))
+		return;
+
+	if (I_IXOFF(tty))
+		rs_send_xchar(tty, STOP_CHAR(tty));
+}
+
+static void rs_unthrottle(struct tty_struct * tty)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+#ifdef SERIAL_DEBUG_THROTTLE
+	char	buf[64];
+
+	baget_printk("unthrottle %s: %d....\n", tty_name(tty, buf),
+	       tty->ldisc.chars_in_buffer(tty));
+#endif
+
+	if (serial_paranoia_check(info, tty->device, "rs_unthrottle"))
+		return;
+
+	if (I_IXOFF(tty)) {
+		if (info->x_char)
+			info->x_char = 0;
+		else
+			rs_send_xchar(tty, START_CHAR(tty));
+	}
+}
+
+/*
+ * ------------------------------------------------------------
+ * rs_ioctl() and friends
+ * ------------------------------------------------------------
+ */
+
+static int get_serial_info(struct async_struct * info,
+			   struct serial_struct * retinfo)
+{
+	struct serial_struct tmp;
+	struct serial_state *state = info->state;
+
+	if (!retinfo)
+		return -EFAULT;
+	memset(&tmp, 0, sizeof(tmp));
+	tmp.type = state->type;
+	tmp.line = state->line;
+	tmp.port = state->port;
+	tmp.irq = state->irq;
+	tmp.flags = state->flags;
+	tmp.xmit_fifo_size = state->xmit_fifo_size;
+	tmp.baud_base = state->baud_base;
+	tmp.close_delay = state->close_delay;
+	tmp.closing_wait = state->closing_wait;
+	tmp.custom_divisor = state->custom_divisor;
+	tmp.hub6 = state->hub6;
+	if (copy_to_user(retinfo,&tmp,sizeof(*retinfo)))
+		return -EFAULT;
+	return 0;
+}
+
+static int set_serial_info(struct async_struct * info,
+			   struct serial_struct * new_info)
+{
+	struct serial_struct new_serial;
+ 	struct serial_state old_state, *state;
+	unsigned int		i,change_irq,change_port;
+	int 			retval = 0;
+
+	if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
+		return -EFAULT;
+	state = info->state;
+	old_state = *state;
+
+	change_irq = new_serial.irq != state->irq;
+	change_port = (new_serial.port != state->port) ||
+		(new_serial.hub6 != state->hub6);
+
+	if (!capable(CAP_SYS_ADMIN)) {
+		if (change_irq || change_port ||
+		    (new_serial.baud_base != state->baud_base) ||
+		    (new_serial.type != state->type) ||
+		    (new_serial.close_delay != state->close_delay) ||
+		    (new_serial.xmit_fifo_size != state->xmit_fifo_size) ||
+		    ((new_serial.flags & ~ASYNC_USR_MASK) !=
+		     (state->flags & ~ASYNC_USR_MASK)))
+			return -EPERM;
+		state->flags = ((state->flags & ~ASYNC_USR_MASK) |
+			       (new_serial.flags & ASYNC_USR_MASK));
+		info->flags = ((state->flags & ~ASYNC_USR_MASK) |
+			       (info->flags & ASYNC_USR_MASK));
+		state->custom_divisor = new_serial.custom_divisor;
+		goto check_and_exit;
+	}
+
+	new_serial.irq = new_serial.irq;
+
+	if ((new_serial.irq >= NR_IRQS) || (new_serial.port > 0xffff) ||
+	    (new_serial.baud_base == 0) || (new_serial.type < PORT_UNKNOWN) ||
+	    (new_serial.type > PORT_MAX) || (new_serial.type == PORT_CIRRUS) ||
+	    (new_serial.type == PORT_STARTECH)) {
+		return -EINVAL;
+	}
+
+	if ((new_serial.type != state->type) ||
+	    (new_serial.xmit_fifo_size <= 0))
+		new_serial.xmit_fifo_size =
+			uart_config[state->type].dfl_xmit_fifo_size;
+
+	/* Make sure address is not already in use */
+	if (new_serial.type) {
+		for (i = 0 ; i < NR_PORTS; i++)
+			if ((state != &rs_table[i]) &&
+			    (rs_table[i].port == new_serial.port) &&
+			    rs_table[i].type)
+				return -EADDRINUSE;
+	}
+
+	if ((change_port || change_irq) && (state->count > 1))
+		return -EBUSY;
+
+	/*
+	 * OK, past this point, all the error checking has been done.
+	 * At this point, we start making changes.....
+	 */
+
+	state->baud_base = new_serial.baud_base;
+	state->flags = ((state->flags & ~ASYNC_FLAGS) |
+			(new_serial.flags & ASYNC_FLAGS));
+	info->flags = ((state->flags & ~ASYNC_INTERNAL_FLAGS) |
+		       (info->flags & ASYNC_INTERNAL_FLAGS));
+	state->custom_divisor = new_serial.custom_divisor;
+	state->type = new_serial.type;
+	state->close_delay = new_serial.close_delay * HZ/100;
+	state->closing_wait = new_serial.closing_wait * HZ/100;
+	info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+	info->xmit_fifo_size = state->xmit_fifo_size =
+		new_serial.xmit_fifo_size;
+
+	release_region(state->port,8);
+	if (change_port || change_irq) {
+		/*
+		 * We need to shutdown the serial port at the old
+		 * port/irq combination.
+		 */
+		shutdown(info);
+		state->irq = new_serial.irq;
+		info->port = state->port = new_serial.port;
+		info->hub6 = state->hub6 = new_serial.hub6;
+	}
+	if (state->type != PORT_UNKNOWN)
+		request_region(state->port,8,"serial(set)");
+
+
+check_and_exit:
+	if (!state->port || !state->type)
+		return 0;
+	if (info->flags & ASYNC_INITIALIZED) {
+		if (((old_state.flags & ASYNC_SPD_MASK) !=
+		     (state->flags & ASYNC_SPD_MASK)) ||
+		    (old_state.custom_divisor != state->custom_divisor)) {
+			if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+				info->tty->alt_speed = 57600;
+			if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+				info->tty->alt_speed = 115200;
+			if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+				info->tty->alt_speed = 230400;
+			if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+				info->tty->alt_speed = 460800;
+			change_speed(info);
+		}
+	} else
+		retval = startup(info);
+	return retval;
+}
+
+
+/*
+ * get_lsr_info - get line status register info
+ *
+ * Purpose: Let user call ioctl() to get info when the UART physically
+ * 	    is emptied.  On bus types like RS485, the transmitter must
+ * 	    release the bus after transmitting. This must be done when
+ * 	    the transmit shift register is empty, not be done when the
+ * 	    transmit holding register is empty.  This functionality
+ * 	    allows an RS485 driver to be written in user space.
+ */
+static int get_lsr_info(struct async_struct * info, unsigned int *value)
+{
+	unsigned short status;
+	unsigned int result;
+	unsigned long flags;
+
+	save_flags(flags); cli();
+	status = serial_inw(info, VAC_UART_INT_STATUS);
+	restore_flags(flags);
+	result = ((status & VAC_UART_STATUS_TX_EMPTY) ? TIOCSER_TEMT : 0);
+	return put_user(result,value);
+}
+
+
+static int get_modem_info(struct async_struct * info, unsigned int *value)
+{
+	unsigned int result;
+
+	result = TIOCM_CAR | TIOCM_DSR;
+	return put_user(result,value);
+}
+
+static int set_modem_info(struct async_struct * info, unsigned int cmd,
+			  unsigned int *value)
+{
+	unsigned int arg;
+
+	if (get_user(arg, value))
+		return -EFAULT;
+	switch (cmd) {
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int do_autoconfig(struct async_struct * info)
+{
+	int			retval;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	if (info->state->count > 1)
+		return -EBUSY;
+
+	shutdown(info);
+
+	autoconfig(info->state);
+
+	retval = startup(info);
+	if (retval)
+		return retval;
+	return 0;
+}
+
+/*
+ * rs_break() --- routine which turns the break handling on or off
+ */
+static void rs_break(struct tty_struct *tty, int break_state)
+{
+	struct async_struct * info = (struct async_struct *)tty->driver_data;
+	unsigned long flags;
+
+	if (serial_paranoia_check(info, tty->device, "rs_break"))
+		return;
+
+	if (!info->port)
+		return;
+	save_flags(flags); cli();
+	if (break_state == -1)
+		serial_outp(info, VAC_UART_MODE,
+			   serial_inp(info, VAC_UART_MODE) | \
+			    VAC_UART_MODE_SEND_BREAK);
+	else
+		serial_outp(info, VAC_UART_MODE,
+			   serial_inp(info, VAC_UART_MODE) & \
+			    ~VAC_UART_MODE_SEND_BREAK);
+	restore_flags(flags);
+}
+
+static int rs_ioctl(struct tty_struct *tty, struct file * file,
+		    unsigned int cmd, unsigned long arg)
+{
+	int error;
+	struct async_struct * info = (struct async_struct *)tty->driver_data;
+	struct async_icount cprev, cnow;	/* kernel counter temps */
+	struct serial_icounter_struct *p_cuser;	/* user space */
+	unsigned long flags;
+
+	if (serial_paranoia_check(info, tty->device, "rs_ioctl"))
+		return -ENODEV;
+
+	if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
+	    (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) &&
+	    (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
+		if (tty->flags & (1 << TTY_IO_ERROR))
+		    return -EIO;
+	}
+
+	switch (cmd) {
+		case TIOCMGET:
+			return get_modem_info(info, (unsigned int *) arg);
+		case TIOCMBIS:
+		case TIOCMBIC:
+		case TIOCMSET:
+			return set_modem_info(info, cmd, (unsigned int *) arg);
+		case TIOCGSERIAL:
+			return get_serial_info(info,
+					       (struct serial_struct *) arg);
+		case TIOCSSERIAL:
+			return set_serial_info(info,
+					       (struct serial_struct *) arg);
+		case TIOCSERCONFIG:
+			return do_autoconfig(info);
+
+		case TIOCSERGETLSR: /* Get line status register */
+			return get_lsr_info(info, (unsigned int *) arg);
+
+		case TIOCSERGSTRUCT:
+			if (copy_to_user((struct async_struct *) arg,
+					 info, sizeof(struct async_struct)))
+				return -EFAULT;
+			return 0;
+
+		/*
+		 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)to change
+		 * - mask passed in arg for lines of interest
+ 		 *   (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
+		 * Caller should use TIOCGICOUNT to see which one it was
+		 */
+		case TIOCMIWAIT:
+			save_flags(flags); cli();
+			/* note the counters on entry */
+			cprev = info->state->icount;
+			restore_flags(flags);
+			while (1) {
+				interruptible_sleep_on(&info->delta_msr_wait);
+				/* see if a signal did it */
+				if (signal_pending(current))
+					return -ERESTARTSYS;
+				save_flags(flags); cli();
+				cnow = info->state->icount; /* atomic copy */
+				restore_flags(flags);
+				if (cnow.rng == cprev.rng &&
+				    cnow.dsr == cprev.dsr &&
+				    cnow.dcd == cprev.dcd &&
+				    cnow.cts == cprev.cts)
+					return -EIO; /* no change => error */
+				if ( ((arg & TIOCM_RNG) &&
+				      (cnow.rng != cprev.rng)) ||
+				     ((arg & TIOCM_DSR) &&
+				      (cnow.dsr != cprev.dsr)) ||
+				     ((arg & TIOCM_CD)  &&
+				      (cnow.dcd != cprev.dcd)) ||
+				     ((arg & TIOCM_CTS) &&
+				      (cnow.cts != cprev.cts)) ) {
+					return 0;
+				}
+				cprev = cnow;
+			}
+			/* NOTREACHED */
+
+		/*
+		 * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
+		 * Return: write counters to the user passed counter struct
+		 * NB: both 1->0 and 0->1 transitions are counted except for
+		 *     RI where only 0->1 is counted.
+		 */
+		case TIOCGICOUNT:
+			save_flags(flags); cli();
+			cnow = info->state->icount;
+			restore_flags(flags);
+			p_cuser = (struct serial_icounter_struct *) arg;
+			error = put_user(cnow.cts, &p_cuser->cts);
+			if (error) return error;
+			error = put_user(cnow.dsr, &p_cuser->dsr);
+			if (error) return error;
+			error = put_user(cnow.rng, &p_cuser->rng);
+			if (error) return error;
+			error = put_user(cnow.dcd, &p_cuser->dcd);
+			if (error) return error;
+                        error = put_user(cnow.rx, &p_cuser->rx);
+                        if (error) return error;
+                        error = put_user(cnow.tx, &p_cuser->tx);
+                        if (error) return error;
+                        error = put_user(cnow.frame, &p_cuser->frame);
+                        if (error) return error;
+                        error = put_user(cnow.overrun, &p_cuser->overrun);
+                        if (error) return error;
+                        error = put_user(cnow.parity, &p_cuser->parity);
+                        if (error) return error;
+                        error = put_user(cnow.brk, &p_cuser->brk);
+                        if (error) return error;
+                        error = put_user(cnow.buf_overrun, &p_cuser->buf_overrun);
+
+			if (error) return error;
+			return 0;
+
+                case TIOCSERGWILD:
+                case TIOCSERSWILD:
+                       /* "setserial -W" is called in Debian boot */
+                        printk ("TIOCSER?WILD ioctl obsolete, ignored.\n");
+                        return 0;
+
+		default:
+			return -ENOIOCTLCMD;
+		}
+	return 0;
+}
+
+static void rs_set_termios(struct tty_struct *tty, struct termios *old_termios)
+{
+	struct async_struct *info = (struct async_struct *)tty->driver_data;
+	unsigned int cflag = tty->termios->c_cflag;
+
+	if (   (cflag == old_termios->c_cflag)
+	    && (   RELEVANT_IFLAG(tty->termios->c_iflag)
+		== RELEVANT_IFLAG(old_termios->c_iflag)))
+	  return;
+
+	change_speed(info);
+
+	/* Handle turning off CRTSCTS */
+	if ((old_termios->c_cflag & CRTSCTS) &&
+	    !(cflag & CRTSCTS)) {
+		tty->hw_stopped = 0;
+		rs_start(tty);
+	}
+
+}
+
+/*
+ * ------------------------------------------------------------
+ * rs_close()
+ *
+ * This routine is called when the serial port gets closed.  First, we
+ * wait for the last remaining data to be sent.  Then, we unlink its
+ * async structure from the interrupt chain if necessary, and we free
+ * that IRQ if nothing is left in the chain.
+ * ------------------------------------------------------------
+ */
+static void rs_close(struct tty_struct *tty, struct file * filp)
+{
+	struct async_struct * info = (struct async_struct *)tty->driver_data;
+	struct serial_state *state;
+	unsigned long flags;
+
+	if (!info || serial_paranoia_check(info, tty->device, "rs_close"))
+		return;
+
+	state = info->state;
+
+	save_flags(flags); cli();
+
+	if (tty_hung_up_p(filp)) {
+		DBG_CNT("before DEC-hung");
+		MOD_DEC_USE_COUNT;
+		restore_flags(flags);
+		return;
+	}
+
+#ifdef SERIAL_DEBUG_OPEN
+	baget_printk("rs_close ttys%d, count = %d\n",
+		     info->line, state->count);
+#endif
+	if ((tty->count == 1) && (state->count != 1)) {
+		/*
+		 * Uh, oh.  tty->count is 1, which means that the tty
+		 * structure will be freed.  state->count should always
+		 * be one in these conditions.  If it's greater than
+		 * one, we've got real problems, since it means the
+		 * serial port won't be shutdown.
+		 */
+		baget_printk("rs_close: bad serial port count; "
+			     "tty->count is 1, "
+			     "state->count is %d\n", state->count);
+		state->count = 1;
+	}
+	if (--state->count < 0) {
+		baget_printk("rs_close: bad serial port count for "
+			     "ttys%d: %d\n",
+			     info->line, state->count);
+		state->count = 0;
+	}
+	if (state->count) {
+		DBG_CNT("before DEC-2");
+		MOD_DEC_USE_COUNT;
+		restore_flags(flags);
+		return;
+	}
+	info->flags |= ASYNC_CLOSING;
+	/*
+	 * Save the termios structure, since this port may have
+	 * separate termios for callout and dialin.
+	 */
+	if (info->flags & ASYNC_NORMAL_ACTIVE)
+		info->state->normal_termios = *tty->termios;
+	if (info->flags & ASYNC_CALLOUT_ACTIVE)
+		info->state->callout_termios = *tty->termios;
+	/*
+	 * Now we wait for the transmit buffer to clear; and we notify
+	 * the line discipline to only process XON/XOFF characters.
+	 */
+	tty->closing = 1;
+	if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE)
+		tty_wait_until_sent(tty, info->closing_wait);
+	/*
+	 * At this point we stop accepting input.  To do this, we
+	 * disable the receive line status interrupts, and tell the
+	 * interrupt driver to stop checking the data ready bit in the
+	 * line status register.
+	 */
+	info->IER &= ~(VAC_UART_INT_RX_BREAK_CHANGE | VAC_UART_INT_RX_ERRS);
+	info->read_status_mask &= ~VAC_UART_STATUS_RX_READY;
+	if (info->flags & ASYNC_INITIALIZED) {
+		serial_outw(info, VAC_UART_INT_MASK, info->IER);
+		/*
+		 * Before we drop DTR, make sure the UART transmitter
+		 * has completely drained; this is especially
+		 * important if there is a transmit FIFO!
+		 */
+		rs_wait_until_sent(tty, info->timeout);
+	}
+	shutdown(info);
+	if (tty->driver.flush_buffer)
+		tty->driver.flush_buffer(tty);
+	if (tty->ldisc.flush_buffer)
+		tty->ldisc.flush_buffer(tty);
+	tty->closing = 0;
+	info->event = 0;
+	info->tty = 0;
+	if (info->blocked_open) {
+		if (info->close_delay) {
+			current->state = TASK_INTERRUPTIBLE;
+			schedule_timeout(info->close_delay);
+		}
+		wake_up_interruptible(&info->open_wait);
+	}
+	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CALLOUT_ACTIVE|
+			 ASYNC_CLOSING);
+	wake_up_interruptible(&info->close_wait);
+	MOD_DEC_USE_COUNT;
+	restore_flags(flags);
+}
+
+/*
+ * rs_wait_until_sent() --- wait until the transmitter is empty
+ */
+static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
+{
+	struct async_struct * info = (struct async_struct *)tty->driver_data;
+	unsigned long orig_jiffies, char_time;
+	int lsr;
+
+	if (serial_paranoia_check(info, tty->device, "rs_wait_until_sent"))
+		return;
+
+	if (info->state->type == PORT_UNKNOWN)
+		return;
+
+        if (info->xmit_fifo_size == 0)
+                return; /* Just in case.... */
+
+	orig_jiffies = jiffies;
+	/*
+	 * Set the check interval to be 1/5 of the estimated time to
+	 * send a single character, and make it at least 1.  The check
+	 * interval should also be less than the timeout.
+	 *
+	 * Note: we have to use pretty tight timings here to satisfy
+	 * the NIST-PCTS.
+	 */
+	char_time = (info->timeout - HZ/50) / info->xmit_fifo_size;
+	char_time = char_time / 5;
+	if (char_time == 0)
+		char_time = 1;
+	if (timeout)
+	  char_time = MIN(char_time, timeout);
+#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
+	baget_printk("In rs_wait_until_sent(%d) check=%lu...",
+		     timeout, char_time);
+	baget_printk("jiff=%lu...", jiffies);
+#endif
+	while (!((lsr = serial_inp(info, VAC_UART_INT_STATUS)) & \
+		 VAC_UART_STATUS_TX_EMPTY)) {
+#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
+		baget_printk("lsr = %d (jiff=%lu)...", lsr, jiffies);
+#endif
+		current->state = TASK_INTERRUPTIBLE;
+		schedule_timeout(char_time);
+		if (signal_pending(current))
+			break;
+		if (timeout && time_after(jiffies, orig_jiffies + timeout))
+			break;
+	}
+	current->state = TASK_RUNNING;
+#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
+	baget_printk("lsr = %d (jiff=%lu)...done\n", lsr, jiffies);
+#endif
+}
+
+/*
+ * rs_hangup() --- called by tty_hangup() when a hangup is signaled.
+ */
+static void rs_hangup(struct tty_struct *tty)
+{
+	struct async_struct * info = (struct async_struct *)tty->driver_data;
+	struct serial_state *state = info->state;
+
+	if (serial_paranoia_check(info, tty->device, "rs_hangup"))
+		return;
+
+	state = info->state;
+
+	rs_flush_buffer(tty);
+	shutdown(info);
+	info->event = 0;
+	state->count = 0;
+	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CALLOUT_ACTIVE);
+	info->tty = 0;
+	wake_up_interruptible(&info->open_wait);
+}
+
+/*
+ * ------------------------------------------------------------
+ * rs_open() and friends
+ * ------------------------------------------------------------
+ */
+static int block_til_ready(struct tty_struct *tty, struct file * filp,
+			   struct async_struct *info)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	struct serial_state *state = info->state;
+	int		retval;
+	int		do_clocal = 0,  extra_count = 0;
+	unsigned long   flags;
+
+	/*
+	 * If the device is in the middle of being closed, then block
+	 * until it's done, and then try again.
+	 */
+	if (tty_hung_up_p(filp) ||
+	    (info->flags & ASYNC_CLOSING)) {
+		if (info->flags & ASYNC_CLOSING)
+			interruptible_sleep_on(&info->close_wait);
+#ifdef SERIAL_DO_RESTART
+		return ((info->flags & ASYNC_HUP_NOTIFY) ?
+			-EAGAIN : -ERESTARTSYS);
+#else
+		return -EAGAIN;
+#endif
+	}
+
+	/*
+	 * If this is a callout device, then just make sure the normal
+	 * device isn't being used.
+	 */
+	if (tty->driver.subtype == SERIAL_TYPE_CALLOUT) {
+		if (info->flags & ASYNC_NORMAL_ACTIVE)
+			return -EBUSY;
+		if ((info->flags & ASYNC_CALLOUT_ACTIVE) &&
+		    (info->flags & ASYNC_SESSION_LOCKOUT) &&
+		    (info->session != current->session))
+		    return -EBUSY;
+		if ((info->flags & ASYNC_CALLOUT_ACTIVE) &&
+		    (info->flags & ASYNC_PGRP_LOCKOUT) &&
+		    (info->pgrp != current->pgrp))
+		    return -EBUSY;
+		info->flags |= ASYNC_CALLOUT_ACTIVE;
+		return 0;
+	}
+
+	/*
+	 * If non-blocking mode is set, or the port is not enabled,
+	 * then make the check up front and then exit.
+	 */
+	if ((filp->f_flags & O_NONBLOCK) ||
+	    (tty->flags & (1 << TTY_IO_ERROR))) {
+		if (info->flags & ASYNC_CALLOUT_ACTIVE)
+			return -EBUSY;
+		info->flags |= ASYNC_NORMAL_ACTIVE;
+		return 0;
+	}
+
+	if (info->flags & ASYNC_CALLOUT_ACTIVE) {
+		if (state->normal_termios.c_cflag & CLOCAL)
+			do_clocal = 1;
+	} else {
+		if (tty->termios->c_cflag & CLOCAL)
+			do_clocal = 1;
+	}
+
+	/*
+	 * Block waiting for the carrier detect and the line to become
+	 * free (i.e., not in use by the callout).  While we are in
+	 * this loop, state->count is dropped by one, so that
+	 * rs_close() knows when to free things.  We restore it upon
+	 * exit, either normal or abnormal.
+	 */
+	retval = 0;
+	add_wait_queue(&info->open_wait, &wait);
+#ifdef SERIAL_DEBUG_OPEN
+	baget_printk("block_til_ready before block: ttys%d, count = %d\n",
+	       state->line, state->count);
+#endif
+	save_flags(flags); cli();
+	if (!tty_hung_up_p(filp)) {
+		extra_count = 1;
+		state->count--;
+	}
+	restore_flags(flags);
+	info->blocked_open++;
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (tty_hung_up_p(filp) ||
+		    !(info->flags & ASYNC_INITIALIZED)) {
+#ifdef SERIAL_DO_RESTART
+			if (info->flags & ASYNC_HUP_NOTIFY)
+				retval = -EAGAIN;
+			else
+				retval = -ERESTARTSYS;
+#else
+			retval = -EAGAIN;
+#endif
+			break;
+		}
+		if (!(info->flags & ASYNC_CALLOUT_ACTIVE) &&
+		    !(info->flags & ASYNC_CLOSING))
+			break;
+		if (signal_pending(current)) {
+			retval = -ERESTARTSYS;
+			break;
+		}
+#ifdef SERIAL_DEBUG_OPEN
+		baget_printk("block_til_ready blocking: ttys%d, count = %d\n",
+		       info->line, state->count);
+#endif
+		schedule();
+	}
+	current->state = TASK_RUNNING;
+	remove_wait_queue(&info->open_wait, &wait);
+	if (extra_count)
+		state->count++;
+	info->blocked_open--;
+#ifdef SERIAL_DEBUG_OPEN
+	baget_printk("block_til_ready after blocking: ttys%d, count = %d\n",
+	       info->line, state->count);
+#endif
+	if (retval)
+		return retval;
+	info->flags |= ASYNC_NORMAL_ACTIVE;
+	return 0;
+}
+
+static int get_async_struct(int line, struct async_struct **ret_info)
+{
+	struct async_struct *info;
+	struct serial_state *sstate;
+
+	sstate = rs_table + line;
+	sstate->count++;
+	if (sstate->info) {
+		*ret_info = sstate->info;
+		return 0;
+	}
+	info = kmalloc(sizeof(struct async_struct), GFP_KERNEL);
+	if (!info) {
+		sstate->count--;
+		return -ENOMEM;
+	}
+	memset(info, 0, sizeof(struct async_struct));
+	init_waitqueue_head(&info->open_wait);
+	init_waitqueue_head(&info->close_wait);
+	init_waitqueue_head(&info->delta_msr_wait);
+	info->magic = SERIAL_MAGIC;
+	info->port = sstate->port;
+	info->flags = sstate->flags;
+	info->xmit_fifo_size = sstate->xmit_fifo_size;
+	info->line = line;
+	info->tqueue.routine = do_softint;
+	info->tqueue.data = info;
+	info->state = sstate;
+	if (sstate->info) {
+		kfree(info);
+		*ret_info = sstate->info;
+		return 0;
+	}
+	*ret_info = sstate->info = info;
+	return 0;
+}
+
+/*
+ * This routine is called whenever a serial port is opened.  It
+ * enables interrupts for a serial port, linking in its async structure into
+ * the IRQ chain.   It also performs the serial-specific
+ * initialization for the tty structure.
+ */
+static int rs_open(struct tty_struct *tty, struct file * filp)
+{
+	struct async_struct	*info;
+	int 			retval, line;
+	unsigned long		page;
+
+	MOD_INC_USE_COUNT;
+	line = MINOR(tty->device) - tty->driver.minor_start;
+	if ((line < 0) || (line >= NR_PORTS)) {
+		MOD_DEC_USE_COUNT;
+		return -ENODEV;
+	}
+	retval = get_async_struct(line, &info);
+	if (retval) {
+		MOD_DEC_USE_COUNT;
+		return retval;
+	}
+        tty->driver_data = info;
+        info->tty = tty;
+	if (serial_paranoia_check(info, tty->device, "rs_open")) {
+	        /* MOD_DEC_USE_COUNT; "info->tty" will cause this */
+		return -ENODEV;
+	}
+
+#ifdef SERIAL_DEBUG_OPEN
+	baget_printk("rs_open %s%d, count = %d\n",
+		     tty->driver.name, info->line,
+		     info->state->count);
+#endif
+	info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+
+	if (!tmp_buf) {
+		page = get_free_page(GFP_KERNEL);
+		if (!page) {
+			/* MOD_DEC_USE_COUNT; "info->tty" will cause this */
+			return -ENOMEM;
+		}
+		if (tmp_buf)
+			free_page(page);
+		else
+			tmp_buf = (unsigned char *) page;
+	}
+
+	/*
+	 * If the port is the middle of closing, bail out now
+	 */
+	if (tty_hung_up_p(filp) ||
+	    (info->flags & ASYNC_CLOSING)) {
+		if (info->flags & ASYNC_CLOSING)
+			interruptible_sleep_on(&info->close_wait);
+		/* MOD_DEC_USE_COUNT; "info->tty" will cause this */
+#ifdef SERIAL_DO_RESTART
+		return ((info->flags & ASYNC_HUP_NOTIFY) ?
+			-EAGAIN : -ERESTARTSYS);
+#else
+		return -EAGAIN;
+#endif
+	}
+
+	/*
+	 * Start up serial port
+	 */
+	retval = startup(info);
+	if (retval) {
+		/* MOD_DEC_USE_COUNT; "info->tty" will cause this */
+		return retval;
+	}
+
+	retval = block_til_ready(tty, filp, info);
+	if (retval) {
+		 /* MOD_DEC_USE_COUNT; "info->tty" will cause this */
+#ifdef SERIAL_DEBUG_OPEN
+		 baget_printk("rs_open returning after block_til_ready "
+			      "with %d\n",
+			      retval);
+#endif
+		 return retval;
+	}
+
+	if ((info->state->count == 1) &&
+	    (info->flags & ASYNC_SPLIT_TERMIOS)) {
+		if (tty->driver.subtype == SERIAL_TYPE_NORMAL)
+			*tty->termios = info->state->normal_termios;
+		else
+			*tty->termios = info->state->callout_termios;
+		change_speed(info);
+	}
+#ifdef CONFIG_SERIAL_CONSOLE
+	if (sercons.cflag && sercons.index == line) {
+		tty->termios->c_cflag = sercons.cflag;
+		sercons.cflag = 0;
+		change_speed(info);
+	}
+#endif
+	info->session = current->session;
+	info->pgrp = current->pgrp;
+
+#ifdef SERIAL_DEBUG_OPEN
+	baget_printk("rs_open ttys%d successful...", info->line);
+#endif
+	return 0;
+}
+
+/*
+ * /proc fs routines....
+ */
+
+static inline int line_info(char *buf, struct serial_state *state)
+{
+	struct async_struct *info = state->info, scr_info;
+	int	ret;
+
+	ret = sprintf(buf, "%d: uart:%s port:%X irq:%d",
+		      state->line, uart_config[state->type].name,
+		      state->port, state->irq);
+
+	if (!state->port || (state->type == PORT_UNKNOWN)) {
+		ret += sprintf(buf+ret, "\n");
+		return ret;
+	}
+
+	/*
+	 * Figure out the current RS-232 lines
+	 */
+	if (!info) {
+		info = &scr_info;	/* This is just for serial_{in,out} */
+
+		info->magic = SERIAL_MAGIC;
+		info->port = state->port;
+		info->flags = state->flags;
+		info->quot = 0;
+		info->tty = 0;
+	}
+
+	if (info->quot) {
+		ret += sprintf(buf+ret, " baud:%d",
+			       state->baud_base / info->quot);
+	}
+
+	ret += sprintf(buf+ret, " tx:%d rx:%d",
+		      state->icount.tx, state->icount.rx);
+
+	if (state->icount.frame)
+		ret += sprintf(buf+ret, " fe:%d", state->icount.frame);
+
+	if (state->icount.parity)
+		ret += sprintf(buf+ret, " pe:%d", state->icount.parity);
+
+	if (state->icount.brk)
+		ret += sprintf(buf+ret, " brk:%d", state->icount.brk);
+
+	if (state->icount.overrun)
+		ret += sprintf(buf+ret, " oe:%d", state->icount.overrun);
+
+	return ret;
+}
+
+int rs_read_proc(char *page, char **start, off_t off, int count,
+		 int *eof, void *data)
+{
+	int i, len = 0, l;
+	off_t	begin = 0;
+
+	len += sprintf(page, "serinfo:1.0 driver:%s\n", serial_version);
+	for (i = 0; i < NR_PORTS && len < 4000; i++) {
+                l = line_info(page + len, &rs_table[i]);
+                len += l;
+ 		if (len+begin > off+count)
+			goto done;
+		if (len+begin < off) {
+			begin += len;
+			len = 0;
+		}
+	}
+	*eof = 1;
+done:
+	if (off >= len+begin)
+		return 0;
+	*start = page + (off-begin);
+	return ((count < begin+len-off) ? count : begin+len-off);
+}
+
+/*
+ * ---------------------------------------------------------------------
+ * rs_init() and friends
+ *
+ * rs_init() is called at boot-time to initialize the serial driver.
+ * ---------------------------------------------------------------------
+ */
+
+/*
+ * This routine prints out the appropriate serial driver version
+ * number, and identifies which options were configured into this
+ * driver.
+ */
+static _INLINE_ void show_serial_version(void)
+{
+ 	printk(KERN_INFO "%s version %s with", serial_name, serial_version);
+#ifdef CONFIG_SERIAL_SHARE_IRQ
+	printk(" SHARE_IRQ");
+#endif
+#define SERIAL_OPT
+#ifdef CONFIG_SERIAL_DETECT_IRQ
+	printk(" DETECT_IRQ");
+#endif
+#ifdef SERIAL_OPT
+	printk(" enabled\n");
+#else
+	printk(" no serial options enabled\n");
+#endif
+#undef SERIAL_OPT
+}
+
+
+/*
+ * This routine is called by rs_init() to initialize a specific serial
+ * port.  It determines what type of UART chip this serial port is
+ * using: 8250, 16450, 16550, 16550A.  The important question is
+ * whether or not this UART is a 16550A or not, since this will
+ * determine whether or not we can use its FIFO features or not.
+ */
+
+/*
+ *  Functionality of this function is reduced: we already know we have a VAC,
+ *  but still need to perform some important actions (see code :-).
+ */
+static void autoconfig(struct serial_state * state)
+{
+	struct async_struct *info, scr_info;
+	unsigned long flags;
+
+	/* Setting up important parameters */
+	state->type = VAC_UART_TYPE;
+	state->xmit_fifo_size = uart_config[state->type].dfl_xmit_fifo_size;
+
+	info = &scr_info;       /* This is just for serial_{in,out} */
+
+	info->magic = SERIAL_MAGIC;
+        info->port  = state->port;
+        info->flags = state->flags;
+
+        save_flags(flags); cli();
+
+	/* + Flush VAC input fifo */
+        (void)serial_in(info, VAC_UART_RX);
+        (void)serial_in(info, VAC_UART_RX);
+        (void)serial_in(info, VAC_UART_RX);
+        (void)serial_in(info, VAC_UART_RX);
+
+	/* Disable interrupts */
+        serial_outp(info, VAC_UART_INT_MASK, 0);
+
+        restore_flags(flags);
+}
+
+int register_serial(struct serial_struct *req);
+void unregister_serial(int line);
+
+EXPORT_SYMBOL(register_serial);
+EXPORT_SYMBOL(unregister_serial);
+
+/*
+ *  Important function for VAC UART check and reanimation.
+ */
+
+static void rs_timer(unsigned long dummy)
+{
+        static unsigned long last_strobe = 0;
+        struct async_struct *info;
+        unsigned int    i;
+        unsigned long flags;
+
+        if ((jiffies - last_strobe) >= RS_STROBE_TIME) {
+                for (i=1; i < NR_IRQS; i++) {
+                        info = IRQ_ports[i];
+                        if (!info)
+                                continue;
+                        save_flags(flags); cli();
+#ifdef CONFIG_SERIAL_SHARE_IRQ
+                        if (info->next_port) {
+                                do {
+                                        serial_out(info, VAC_UART_INT_MASK, 0);
+                                        info->IER |= VAC_UART_INT_TX_EMPTY;
+                                        serial_out(info, VAC_UART_INT_MASK,
+						   info->IER);
+                                        info = info->next_port;
+                                } while (info);
+				rs_interrupt(i, NULL, NULL);
+                        } else
+#endif /* CONFIG_SERIAL_SHARE_IRQ */
+                                rs_interrupt_single(i, NULL, NULL);
+                        restore_flags(flags);
+                }
+        }
+        last_strobe = jiffies;
+        mod_timer(&vacs_timer, jiffies + RS_STROBE_TIME);
+
+	/*
+	 *  It looks this code for case we share IRQ with console...
+	 */
+
+        if (IRQ_ports[0]) {
+                save_flags(flags); cli();
+#ifdef CONFIG_SERIAL_SHARE_IRQ
+                rs_interrupt(0, NULL, NULL);
+#else
+                rs_interrupt_single(0, NULL, NULL);
+#endif
+                restore_flags(flags);
+
+                mod_timer(&vacs_timer, jiffies + IRQ_timeout[0] - 2);
+        }
+}
+
+/*
+ * The serial driver boot-time initialization code!
+ */
+int __init rs_init(void)
+{
+	int i;
+	struct serial_state * state;
+	extern void atomwide_serial_init (void);
+	extern void dualsp_serial_init (void);
+
+#ifdef CONFIG_ATOMWIDE_SERIAL
+	atomwide_serial_init ();
+#endif
+#ifdef CONFIG_DUALSP_SERIAL
+	dualsp_serial_init ();
+#endif
+
+	init_bh(SERIAL_BH, do_serial_bh);
+	init_timer(&vacs_timer);
+	vacs_timer.function = rs_timer;
+	vacs_timer.expires = 0;
+
+	for (i = 0; i < NR_IRQS; i++) {
+		IRQ_ports[i] = 0;
+		IRQ_timeout[i] = 0;
+	}
+
+
+/*
+ *  It is not a good idea to share interrupts with console,
+ *  but it looks we cannot avoid it.
+ */
+	show_serial_version();
+
+	/* Initialize the tty_driver structure */
+
+	memset(&serial_driver, 0, sizeof(struct tty_driver));
+	serial_driver.magic = TTY_DRIVER_MAGIC;
+	serial_driver.driver_name = "serial";
+	serial_driver.name = "ttyS";
+	serial_driver.major = TTY_MAJOR;
+	serial_driver.minor_start = 64;
+	serial_driver.num = NR_PORTS;
+	serial_driver.type = TTY_DRIVER_TYPE_SERIAL;
+	serial_driver.subtype = SERIAL_TYPE_NORMAL;
+	serial_driver.init_termios = tty_std_termios;
+	serial_driver.init_termios.c_cflag =
+		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+	serial_driver.flags = TTY_DRIVER_REAL_RAW;
+	serial_driver.refcount = &serial_refcount;
+	serial_driver.table = serial_table;
+	serial_driver.termios = serial_termios;
+	serial_driver.termios_locked = serial_termios_locked;
+
+	serial_driver.open = rs_open;
+	serial_driver.close = rs_close;
+	serial_driver.write = rs_write;
+	serial_driver.put_char = rs_put_char;
+	serial_driver.flush_chars = rs_flush_chars;
+	serial_driver.write_room = rs_write_room;
+	serial_driver.chars_in_buffer = rs_chars_in_buffer;
+	serial_driver.flush_buffer = rs_flush_buffer;
+	serial_driver.ioctl = rs_ioctl;
+	serial_driver.throttle = rs_throttle;
+	serial_driver.unthrottle = rs_unthrottle;
+	serial_driver.send_xchar = rs_send_xchar;
+	serial_driver.set_termios = rs_set_termios;
+	serial_driver.stop = rs_stop;
+	serial_driver.start = rs_start;
+	serial_driver.hangup = rs_hangup;
+	serial_driver.break_ctl = rs_break;
+	serial_driver.wait_until_sent = rs_wait_until_sent;
+	serial_driver.read_proc = rs_read_proc;
+
+	/*
+	 * The callout device is just like normal device except for
+	 * major number and the subtype code.
+	 */
+	callout_driver = serial_driver;
+	callout_driver.name = "cua";
+	callout_driver.major = TTYAUX_MAJOR;
+	callout_driver.subtype = SERIAL_TYPE_CALLOUT;
+	callout_driver.read_proc = 0;
+	callout_driver.proc_entry = 0;
+
+	if (tty_register_driver(&serial_driver))
+		panic("Couldn't register serial driver");
+	if (tty_register_driver(&callout_driver))
+		panic("Couldn't register callout driver");
+
+	for (i = 0, state = rs_table; i < NR_PORTS; i++,state++) {
+		state->magic = SSTATE_MAGIC;
+		state->line = i;
+		state->type = PORT_UNKNOWN;
+		state->custom_divisor = 0;
+		state->close_delay = 5*HZ/10;
+		state->closing_wait = 30*HZ;
+		state->callout_termios = callout_driver.init_termios;
+		state->normal_termios = serial_driver.init_termios;
+		state->icount.cts = state->icount.dsr =
+			state->icount.rng = state->icount.dcd = 0;
+		state->icount.rx = state->icount.tx = 0;
+		state->icount.frame = state->icount.parity = 0;
+		state->icount.overrun = state->icount.brk = 0;
+		state->irq = state->irq;
+		if (check_region(state->port,8))
+			continue;
+	        if (state->flags & ASYNC_BOOT_AUTOCONF)
+ 			autoconfig(state);
+	}
+
+	/*
+	 * Detect the IRQ only once every port is initialised,
+	 * because some 16450 do not reset to 0 the MCR register.
+	 */
+	for (i = 0, state = rs_table; i < NR_PORTS; i++,state++) {
+		if (state->type == PORT_UNKNOWN)
+			continue;
+		printk(KERN_INFO "ttyS%02d%s at 0x%04x (irq = %d) is a %s\n",
+		       state->line,
+		       (state->flags & ASYNC_FOURPORT) ? " FourPort" : "",
+		       state->port, state->irq,
+		       uart_config[state->type].name);
+	}
+	return 0;
+}
+
+/*
+ * register_serial and unregister_serial allows for serial ports to be
+ * configured at run-time, to support PCMCIA modems.
+ */
+int register_serial(struct serial_struct *req)
+{
+	int i;
+	unsigned long flags;
+	struct serial_state *state;
+
+	save_flags(flags);
+	cli();
+	for (i = 0; i < NR_PORTS; i++) {
+		if (rs_table[i].port == req->port)
+			break;
+	}
+	if (i == NR_PORTS) {
+		for (i = 0; i < NR_PORTS; i++)
+			if ((rs_table[i].type == PORT_UNKNOWN) &&
+			    (rs_table[i].count == 0))
+				break;
+	}
+	if (i == NR_PORTS) {
+		restore_flags(flags);
+		return -1;
+	}
+	state = &rs_table[i];
+	if (rs_table[i].count) {
+		restore_flags(flags);
+		printk("Couldn't configure serial #%d (port=%d,irq=%d): "
+		       "device already open\n", i, req->port, req->irq);
+		return -1;
+	}
+	state->irq = req->irq;
+	state->port = req->port;
+	state->flags = req->flags;
+
+	autoconfig(state);
+	if (state->type == PORT_UNKNOWN) {
+		restore_flags(flags);
+		printk("register_serial(): autoconfig failed\n");
+		return -1;
+	}
+	restore_flags(flags);
+
+	printk(KERN_INFO "tty%02d at 0x%04x (irq = %d) is a %s\n",
+	       state->line, state->port, state->irq,
+	       uart_config[state->type].name);
+	return state->line;
+}
+
+void unregister_serial(int line)
+{
+	unsigned long flags;
+	struct serial_state *state = &rs_table[line];
+
+	save_flags(flags);
+	cli();
+	if (state->info && state->info->tty)
+		tty_hangup(state->info->tty);
+	state->type = PORT_UNKNOWN;
+	printk(KERN_INFO "tty%02d unloaded\n", state->line);
+	restore_flags(flags);
+}
+
+#ifdef MODULE
+int init_module(void)
+{
+	return rs_init();
+}
+
+void cleanup_module(void)
+{
+	unsigned long flags;
+	int e1, e2;
+	int i;
+
+	printk("Unloading %s: version %s\n", serial_name, serial_version);
+	save_flags(flags);
+	cli();
+
+	del_timer_sync(&vacs_timer);
+        remove_bh(SERIAL_BH);
+
+	if ((e1 = tty_unregister_driver(&serial_driver)))
+		printk("SERIAL: failed to unregister serial driver (%d)\n",
+		       e1);
+	if ((e2 = tty_unregister_driver(&callout_driver)))
+		printk("SERIAL: failed to unregister callout driver (%d)\n",
+		       e2);
+	restore_flags(flags);
+
+	for (i = 0; i < NR_PORTS; i++) {
+		if (rs_table[i].type != PORT_UNKNOWN)
+			release_region(rs_table[i].port, 8);
+	}
+	if (tmp_buf) {
+		free_page((unsigned long) tmp_buf);
+		tmp_buf = NULL;
+	}
+}
+#endif /* MODULE */
+
+
+/*
+ * ------------------------------------------------------------
+ * Serial console driver
+ * ------------------------------------------------------------
+ */
+#ifdef CONFIG_SERIAL_CONSOLE
+
+#define BOTH_EMPTY (VAC_UART_STATUS_TX_EMPTY | VAC_UART_STATUS_TX_EMPTY)
+
+/*
+ *	Wait for transmitter & holding register to empty
+ */
+static inline void wait_for_xmitr(struct async_struct *info)
+{
+	int lsr;
+	unsigned int tmout = 1000000;
+
+	do {
+		lsr = serial_inp(info, VAC_UART_INT_STATUS);
+		if (--tmout == 0) break;
+	} while ((lsr & BOTH_EMPTY) != BOTH_EMPTY);
+}
+
+/*
+ *	Print a string to the serial port trying not to disturb
+ *	any possible real use of the port...
+ */
+static void serial_console_write(struct console *co, const char *s,
+				unsigned count)
+{
+	struct serial_state *ser;
+	int ier;
+	unsigned i;
+	struct async_struct scr_info; /* serial_{in,out} because HUB6 */
+
+	ser = rs_table + co->index;
+	scr_info.magic = SERIAL_MAGIC;
+	scr_info.port = ser->port;
+	scr_info.flags = ser->flags;
+
+	/*
+	 *	First save the IER then disable the interrupts
+	 */
+	ier = serial_inp(&scr_info, VAC_UART_INT_MASK);
+	serial_outw(&scr_info, VAC_UART_INT_MASK, 0x00);
+
+	/*
+	 *	Now, do each character
+	 */
+	for (i = 0; i < count; i++, s++) {
+		wait_for_xmitr(&scr_info);
+
+		/*
+		 *	Send the character out.
+		 *	If a LF, also do CR...
+		 */
+		serial_outp(&scr_info, VAC_UART_TX, (unsigned short)*s << 8);
+		if (*s == 10) {
+			wait_for_xmitr(&scr_info);
+			serial_outp(&scr_info, VAC_UART_TX, 13 << 8);
+		}
+	}
+
+	/*
+	 *	Finally, Wait for transmitter & holding register to empty
+	 * 	and restore the IER
+	 */
+	wait_for_xmitr(&scr_info);
+	serial_outp(&scr_info, VAC_UART_INT_MASK, ier);
+}
+
+static kdev_t serial_console_device(struct console *c)
+{
+	return MKDEV(TTY_MAJOR, 64 + c->index);
+}
+
+/*
+ *	Setup initial baud/bits/parity. We do two things here:
+ *	- construct a cflag setting for the first rs_open()
+ *	- initialize the serial port
+ *	Return non-zero if we didn't find a serial port.
+ */
+static int __init serial_console_setup(struct console *co, char *options)
+{
+	struct serial_state *ser;
+	unsigned cval;
+	int	baud = 9600;
+	int	bits = 8;
+	int	parity = 'n';
+	int	cflag = CREAD | HUPCL | CLOCAL;
+	int	quot = 0;
+	char	*s;
+	struct async_struct scr_info; /* serial_{in,out} because HUB6 */
+
+	if (options) {
+		baud = simple_strtoul(options, NULL, 10);
+		s = options;
+		while(*s >= '0' && *s <= '9')
+			s++;
+		if (*s) parity = *s++;
+		if (*s) bits   = *s - '0';
+	}
+
+	/*
+	 *	Now construct a cflag setting.
+	 */
+	switch(baud) {
+		case 1200:
+			cflag |= B1200;
+			break;
+		case 2400:
+			cflag |= B2400;
+			break;
+		case 4800:
+			cflag |= B4800;
+			break;
+		case 19200:
+			cflag |= B19200;
+			break;
+		case 38400:
+			cflag |= B38400;
+			break;
+		case 57600:
+			cflag |= B57600;
+			break;
+		case 115200:
+			cflag |= B115200;
+			break;
+		case 9600:
+		default:
+			cflag |= B9600;
+			break;
+	}
+	switch(bits) {
+		case 7:
+			cflag |= CS7;
+			break;
+		default:
+		case 8:
+			cflag |= CS8;
+			break;
+	}
+	switch(parity) {
+		case 'o': case 'O':
+			cflag |= PARODD;
+			break;
+		case 'e': case 'E':
+			cflag |= PARENB;
+			break;
+	}
+	co->cflag = cflag;
+
+	/*
+	 *	Divisor, bytesize and parity
+	 */
+	ser = rs_table + co->index;
+	scr_info.magic = SERIAL_MAGIC;
+	scr_info.port = ser->port;
+	scr_info.flags = ser->flags;
+
+	quot = ser->baud_base / baud;
+	cval = cflag & (CSIZE | CSTOPB);
+
+	cval >>= 4;
+
+	cval &= ~VAC_UART_MODE_PARITY_ENABLE;
+	if (cflag & PARENB)
+		cval |= VAC_UART_MODE_PARITY_ENABLE;
+	if (cflag & PARODD)
+		cval |= VAC_UART_MODE_PARITY_ODD;
+
+	/*
+	 *	Disable UART interrupts, set DTR and RTS high
+	 *	and set speed.
+	 */
+	switch (baud) {
+	default:
+	case 9600:
+		cval |= VAC_UART_MODE_BAUD(7);
+		break;
+	case 4800:
+		cval |= VAC_UART_MODE_BAUD(6);
+		break;
+	case 2400:
+		cval |= VAC_UART_MODE_BAUD(5);
+		break;
+	case 1200:
+		cval |= VAC_UART_MODE_BAUD(4);
+		break;
+	case 600:
+		cval |= VAC_UART_MODE_BAUD(3);
+		break;
+	case 300:
+		cval |= VAC_UART_MODE_BAUD(2);
+		break;
+#ifndef QUAD_UART_SPEED
+	case 150:
+#else
+	case 38400:
+#endif
+		cval |= VAC_UART_MODE_BAUD(1);
+		break;
+#ifndef QUAD_UART_SPEED
+	case 75:
+#else
+	case 19200:
+#endif
+		cval |= VAC_UART_MODE_BAUD(0);
+		break;
+	}
+
+	/* Baget VAC need some adjustments for computed value */
+	cval = vac_uart_mode_fixup(cval);
+
+        serial_outp(&scr_info, VAC_UART_MODE, cval);
+	serial_outp(&scr_info, VAC_UART_INT_MASK, 0);
+
+	return 0;
+}
+
+static struct console sercons = {
+	.name		= "ttyS",
+	.write		= serial_console_write,
+	.device		= serial_console_device,
+	.setup		= serial_console_setup,
+	.flags		= CON_PRINTBUFFER,
+	.index		= -1,
+};
+
+/*
+ *	Register console.
+ */
+long __init serial_console_init(long kmem_start, long kmem_end)
+{
+	register_console(&sercons);
+	return kmem_start;
+}
+#endif
+
+#ifdef CONFIG_REMOTE_DEBUG
+#undef PRINT_DEBUG_PORT_INFO
+
+/*
+ * This is the interface to the remote debugger stub.
+ * I've put that here to be able to control the serial
+ * device more directly.
+ */
+
+static int initialized;
+
+static int rs_debug_init(struct async_struct *info)
+{
+	int quot;
+
+	autoconfig(info);	/* autoconfigure ttyS0, whatever that is */
+
+#ifdef PRINT_DEBUG_PORT_INFO
+	baget_printk("kgdb debug interface:: tty%02d at 0x%04x",
+		     info->line, info->port);
+	switch (info->type) {
+		case PORT_8250:
+			baget_printk(" is a 8250\n");
+			break;
+		case PORT_16450:
+			baget_printk(" is a 16450\n");
+			break;
+		case PORT_16550:
+			baget_printk(" is a 16550\n");
+			break;
+		case PORT_16550A:
+			baget_printk(" is a 16550A\n");
+			break;
+		case PORT_16650:
+			baget_printk(" is a 16650\n");
+			break;
+		default:
+			baget_printk(" is of unknown type -- unusable\n");
+			break;
+	}
+#endif
+
+	if (info->port == PORT_UNKNOWN)
+		return -1;
+
+	/*
+	 * Clear all interrupts
+	 */
+
+	(void)serial_inp(info, VAC_UART_INT_STATUS);
+	(void)serial_inp(info, VAC_UART_RX);
+
+	/*
+	 * Now, initialize the UART
+	 */
+	serial_outp(info,VAC_UART_MODE,VAC_UART_MODE_INITIAL); /* reset DLAB */
+	if (info->flags & ASYNC_FOURPORT) {
+		info->MCR = UART_MCR_DTR | UART_MCR_RTS;
+		info->MCR_noint = UART_MCR_DTR | UART_MCR_OUT1;
+	} else {
+		info->MCR = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2;
+		info->MCR_noint = UART_MCR_DTR | UART_MCR_RTS;
+	}
+
+	info->MCR = info->MCR_noint;	     /* no interrupts, please */
+	/*
+	 * and set the speed of the serial port
+	 * (currently hardwired to 9600 8N1
+	 */
+
+	quot = info->baud_base / 9600;	     /* baud rate is fixed to 9600 */
+
+	return 0;
+}
+
+int putDebugChar(char c)
+{
+	struct async_struct *info = rs_table;
+
+	if (!initialized) { 		/* need to init device first */
+		if (rs_debug_init(info) == 0)
+			initialized = 1;
+		else
+			return 0;
+	}
+
+	while ((serial_inw(info, VAC_UART_INT_STATUS) & \
+                VAC_UART_STATUS_TX_EMPTY) == 0)
+		;
+	serial_out(info, VAC_UART_TX, (unsigned short)c << 8);
+
+	return 1;
+}
+
+char getDebugChar(void)
+{
+	struct async_struct *info = rs_table;
+
+	if (!initialized) { 		/* need to init device first */
+		if (rs_debug_init(info) == 0)
+			initialized = 1;
+		else
+			return 0;
+	}
+	while (!(serial_inw(info, VAC_UART_INT_STATUS) & \
+		 VAC_UART_STATUS_RX_READY))
+		;
+
+	return(serial_inp(info, VAC_UART_RX));
+}
+
+#endif /* CONFIG_REMOTE_DEBUG */