[PATCH] mips: remove VR4181 support

There seem to be no more users or interest in the NEC Osprey evaluation
system for the NEC VR4181 SOC which is an old part anyway, so remove the
code.  More information on the Osprey can be found at
http://www.linux-mips.org/wiki/Osprey.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

10 files changed, 0 insertions, 948 deletions

diff --git a/arch/mips/vr4181/common/Makefile b/arch/mips/vr4181/common/Makefile
deleted file mode 100644
index f7587ca64ea..00000000000
--- a/arch/mips/vr4181/common/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Makefile for common code of NEC vr4181 based boards
-#
-
-obj-y	 := irq.o int_handler.o serial.o time.o
-
-EXTRA_AFLAGS := $(CFLAGS)
diff --git a/arch/mips/vr4181/common/int_handler.S b/arch/mips/vr4181/common/int_handler.S
deleted file mode 100644
index 2c041b8ee52..00000000000
--- a/arch/mips/vr4181/common/int_handler.S
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
- * arch/mips/vr4181/common/int_handler.S
- *
- * Adapted to the VR4181 and almost entirely rewritten:
- * Copyright (C) 1999 Bradley D. LaRonde and Michael Klar
- *
- * Clean up to conform to the new IRQ
- * Copyright (C) 2001 MontaVista Software Inc.
- * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-
-#include <asm/asm.h>
-#include <asm/regdef.h>
-#include <asm/mipsregs.h>
-#include <asm/stackframe.h>
-
-#include <asm/vr4181/vr4181.h>
-
-/*
- * [jsun]
- * See include/asm/vr4181/irq.h for IRQ assignment and strategy.
- */
-
-	.text
-	.set	noreorder
-
-	.align	5
-	NESTED(vr4181_handle_irq, PT_SIZE, ra)
-
-	.set	noat
-	SAVE_ALL
-	CLI
-
-	.set	at
-	.set	noreorder
-
-	mfc0	t0, CP0_CAUSE
-	mfc0	t2, CP0_STATUS
-
-	and	t0, t2
-
-	/* we check IP3 first; it happens most frequently */
-	andi	t1, t0, STATUSF_IP3
-	bnez	t1, ll_cpu_ip3
-	andi	t1, t0, STATUSF_IP2
-	bnez	t1, ll_cpu_ip2
-	andi	t1, t0, STATUSF_IP7	/* cpu timer */
-	bnez	t1, ll_cputimer_irq
-	andi	t1, t0, STATUSF_IP4
-	bnez	t1, ll_cpu_ip4
-	andi	t1, t0, STATUSF_IP5
-	bnez	t1, ll_cpu_ip5
-	andi	t1, t0, STATUSF_IP6
-	bnez	t1, ll_cpu_ip6
-	andi	t1, t0, STATUSF_IP0	/* software int 0 */
-	bnez	t1, ll_cpu_ip0
-	andi	t1, t0, STATUSF_IP1	/* software int 1 */
-	bnez	t1, ll_cpu_ip1
-	nop
-
-	.set	reorder
-do_spurious:
-	j	spurious_interrupt
-
-/*
- * regular CPU irqs
- */
-ll_cputimer_irq:
-	li	a0, VR4181_IRQ_TIMER
-	move	a1, sp
-	jal	do_IRQ
-	j	ret_from_irq
-
-
-ll_cpu_ip0:
-	li	a0, VR4181_IRQ_SW1
-	move	a1, sp
-	jal	do_IRQ
-	j	ret_from_irq
-
-ll_cpu_ip1:
-	li	a0, VR4181_IRQ_SW2
-	move	a1, sp
-	jal	do_IRQ
-	j	ret_from_irq
-
-ll_cpu_ip3:
-	li	a0, VR4181_IRQ_INT1
-	move	a1, sp
-	jal	do_IRQ
-	j	ret_from_irq
-
-ll_cpu_ip4:
-	li	a0, VR4181_IRQ_INT2
-	move	a1, sp
-	jal	do_IRQ
-	j	ret_from_irq
-
-ll_cpu_ip5:
-	li	a0, VR4181_IRQ_INT3
-	move	a1, sp
-	jal	do_IRQ
-	j	ret_from_irq
-
-ll_cpu_ip6:
-	li	a0, VR4181_IRQ_INT4
-	move	a1, sp
-	jal	do_IRQ
-	j	ret_from_irq
-
-/*
- *  One of the sys irq has happend.
- *
- *  In the interest of speed, we first determine in the following order
- *  which 16-irq block have pending interrupts:
- *	sysint1 (16 sources, including cascading intrs from GPIO)
- *	sysint2
- *	gpio (16 intr sources)
- *
- *  Then we do binary search to find the exact interrupt source.
- */
-ll_cpu_ip2:
-
-	lui	t3,%hi(VR4181_SYSINT1REG)
-	lhu	t0,%lo(VR4181_SYSINT1REG)(t3)
-	lhu	t2,%lo(VR4181_MSYSINT1REG)(t3)
-	and	t0, 0xfffb		/* hack - remove RTC Long 1 intr */
-	and	t0, t2
-	beqz	t0, check_sysint2
-
-	/* check for GPIO interrupts */
-	andi	t1, t0, 0x0100
-	bnez	t1, check_gpio_int
-
-	/* so we have an interrupt in sysint1 which is not gpio int */
-	li	a0, VR4181_SYS_IRQ_BASE - 1
-	j	check_16
-
-check_sysint2:
-
-	lhu	t0,%lo(VR4181_SYSINT2REG)(t3)
-	lhu	t2,%lo(VR4181_MSYSINT2REG)(t3)
-	and	t0, 0xfffe		/* hack - remove RTC Long 2 intr */
-	and	t0, t2
-	li	a0, VR4181_SYS_IRQ_BASE + 16 - 1
-	j	check_16
-
-check_gpio_int:
-	lui	t3,%hi(VR4181_GPINTMSK)
-	lhu	t0,%lo(VR4181_GPINTMSK)(t3)
-	lhu	t2,%lo(VR4181_GPINTSTAT)(t3)
-	xori	t0, 0xffff			/* why? reverse logic? */
-	and	t0, t2
-	li	a0, VR4181_GPIO_IRQ_BASE - 1
-	j	check_16
-
-/*
- *  When we reach check_16, we have 16-bit status in t0 and base irq number
- *  in a0.
- */
-check_16:
-	andi	t1, t0, 0xff
-	bnez	t1, check_8
-
-	srl	t0, 8
-	addi	a0, 8
-	j	check_8
-
-/*
- *  When we reach check_8, we have 8-bit status in t0 and base irq number
- *  in a0.
- */
-check_8:
-	andi	t1, t0, 0xf
-	bnez	t1, check_4
-
-	srl	t0, 4
-	addi	a0, 4
-	j	check_4
-
-/*
- *  When we reach check_4, we have 4-bit status in t0 and base irq number
- *  in a0.
- */
-check_4:
-	andi	t0, t0, 0xf
-	beqz	t0, do_spurious
-
-loop:
-	andi	t2, t0, 0x1
-	srl	t0, 1
-	addi	a0, 1
-	beqz	t2, loop
-
-found_it:
-	move	a1, sp
-	jal	do_IRQ
-
-	j	ret_from_irq
-
-	END(vr4181_handle_irq)
diff --git a/arch/mips/vr4181/common/irq.c b/arch/mips/vr4181/common/irq.c
deleted file mode 100644
index 2cdf77c5cb3..00000000000
--- a/arch/mips/vr4181/common/irq.c
+++ /dev/null
@@ -1,239 +0,0 @@
-/*
- * Copyright (C) 2001 MontaVista Software Inc.
- * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
- * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
- *
- * linux/arch/mips/vr4181/common/irq.c
- *	Completely re-written to use the new irq.c
- *
- * Credits to Bradley D. LaRonde and Michael Klar for writing the original
- * irq.c file which was derived from the common irq.c file.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/kernel_stat.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-
-#include <asm/irq.h>
-#include <asm/mipsregs.h>
-#include <asm/gdb-stub.h>
-
-#include <asm/vr4181/vr4181.h>
-
-/*
- * Strategy:
- *
- * We essentially have three irq controllers, CPU, system, and gpio.
- *
- * CPU irq controller is taken care by arch/mips/kernel/irq_cpu.c and
- * CONFIG_IRQ_CPU config option.
- *
- * We here provide sys_irq and gpio_irq controller code.
- */
-
-static int sys_irq_base;
-static int gpio_irq_base;
-
-/* ---------------------- sys irq ------------------------ */
-static void
-sys_irq_enable(unsigned int irq)
-{
-	irq -= sys_irq_base;
-	if (irq < 16) {
-		*VR4181_MSYSINT1REG |= (u16)(1 << irq);
-	} else {
-		irq -= 16;
-		*VR4181_MSYSINT2REG |= (u16)(1 << irq);
-	}
-}
-
-static void
-sys_irq_disable(unsigned int irq)
-{
-	irq -= sys_irq_base;
-	if (irq < 16) {
-		*VR4181_MSYSINT1REG &= ~((u16)(1 << irq));
-	} else {
-		irq -= 16;
-		*VR4181_MSYSINT2REG &= ~((u16)(1 << irq));
-	}
-
-}
-
-static unsigned int
-sys_irq_startup(unsigned int irq)
-{
-	sys_irq_enable(irq);
-	return 0;
-}
-
-#define sys_irq_shutdown	sys_irq_disable
-#define sys_irq_ack		sys_irq_disable
-
-static void
-sys_irq_end(unsigned int irq)
-{
-	if(!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
-		sys_irq_enable(irq);
-}
-
-static hw_irq_controller sys_irq_controller = {
-	"vr4181_sys_irq",
-	sys_irq_startup,
-	sys_irq_shutdown,
-	sys_irq_enable,
-	sys_irq_disable,
-	sys_irq_ack,
-	sys_irq_end,
-	NULL			/* no affinity stuff for UP */
-};
-
-/* ---------------------- gpio irq ------------------------ */
-/* gpio irq lines use reverse logic */
-static void
-gpio_irq_enable(unsigned int irq)
-{
-	irq -= gpio_irq_base;
-	*VR4181_GPINTMSK &= ~((u16)(1 << irq));
-}
-
-static void
-gpio_irq_disable(unsigned int irq)
-{
-	irq -= gpio_irq_base;
-	*VR4181_GPINTMSK |= (u16)(1 << irq);
-}
-
-static unsigned int
-gpio_irq_startup(unsigned int irq)
-{
-	gpio_irq_enable(irq);
-
-	irq -= gpio_irq_base;
-	*VR4181_GPINTEN |= (u16)(1 << irq );
-
-	return 0;
-}
-
-static void
-gpio_irq_shutdown(unsigned int irq)
-{
-	gpio_irq_disable(irq);
-
-	irq -= gpio_irq_base;
-	*VR4181_GPINTEN &= ~((u16)(1 << irq ));
-}
-
-static void
-gpio_irq_ack(unsigned int irq)
-{
-	u16 irqtype;
-	u16 irqshift;
-
-	gpio_irq_disable(irq);
-
-	/* we clear interrupt if it is edge triggered */
-	irq -= gpio_irq_base;
-	if (irq < 8) {
-		irqtype = *VR4181_GPINTTYPL;
-		irqshift = 2 << (irq*2);
-	} else {
-		irqtype = *VR4181_GPINTTYPH;
-		irqshift = 2 << ((irq-8)*2);
-	}
-	if ( ! (irqtype & irqshift) ) {
-		*VR4181_GPINTSTAT = (u16) (1 << irq);
-	}
-}
-
-static void
-gpio_irq_end(unsigned int irq)
-{
-	if(!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
-		gpio_irq_enable(irq);
-}
-
-static hw_irq_controller gpio_irq_controller = {
-	"vr4181_gpio_irq",
-	gpio_irq_startup,
-	gpio_irq_shutdown,
-	gpio_irq_enable,
-	gpio_irq_disable,
-	gpio_irq_ack,
-	gpio_irq_end,
-	NULL			/* no affinity stuff for UP */
-};
-
-/* ---------------------  IRQ init stuff ---------------------- */
-
-extern asmlinkage void vr4181_handle_irq(void);
-extern void breakpoint(void);
-extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
-extern void mips_cpu_irq_init(u32 irq_base);
-
-static struct irqaction cascade =
-	{ no_action, SA_INTERRUPT, CPU_MASK_NONE, "cascade", NULL, NULL };
-static struct irqaction reserved =
-	{ no_action, SA_INTERRUPT, CPU_MASK_NONE, "cascade", NULL, NULL };
-
-void __init arch_init_irq(void)
-{
-	int i;
-
-	set_except_vector(0, vr4181_handle_irq);
-
-	/* init CPU irqs */
-	mips_cpu_irq_init(VR4181_CPU_IRQ_BASE);
-
-	/* init sys irqs */
-	sys_irq_base = VR4181_SYS_IRQ_BASE;
-	for (i=sys_irq_base; i < sys_irq_base + VR4181_NUM_SYS_IRQ; i++) {
-		irq_desc[i].status = IRQ_DISABLED;
-		irq_desc[i].action = NULL;
-		irq_desc[i].depth = 1;
-		irq_desc[i].handler = &sys_irq_controller;
-	}
-
-	/* init gpio irqs */
-	gpio_irq_base = VR4181_GPIO_IRQ_BASE;
-	for (i=gpio_irq_base; i < gpio_irq_base + VR4181_NUM_GPIO_IRQ; i++) {
-		irq_desc[i].status = IRQ_DISABLED;
-		irq_desc[i].action = NULL;
-		irq_desc[i].depth = 1;
-		irq_desc[i].handler = &gpio_irq_controller;
-	}
-
-	/* Default all ICU IRQs to off ... */
-	*VR4181_MSYSINT1REG = 0;
-	*VR4181_MSYSINT2REG = 0;
-
-	/* We initialize the level 2 ICU registers to all bits disabled. */
-	*VR4181_MPIUINTREG = 0;
-	*VR4181_MAIUINTREG = 0;
-	*VR4181_MKIUINTREG = 0;
-
-	/* disable all GPIO intrs */
-	*VR4181_GPINTMSK = 0xffff;
-
-	/* vector handler.  What these do is register the IRQ as non-sharable */
-	setup_irq(VR4181_IRQ_INT0, &cascade);
-	setup_irq(VR4181_IRQ_GIU, &cascade);
-
-	/*
-	 * RTC interrupts are interesting.  They have two destinations.
-	 * One is at sys irq controller, and the other is at CPU IP3 and IP4.
-	 * RTC timer is used as system timer.
-	 * We enable them here, but timer routine will register later
-	 * with CPU IP3/IP4.
-	 */
-	setup_irq(VR4181_IRQ_RTCL1, &reserved);
-	setup_irq(VR4181_IRQ_RTCL2, &reserved);
-}
diff --git a/arch/mips/vr4181/common/serial.c b/arch/mips/vr4181/common/serial.c
deleted file mode 100644
index 3f62c62b107..00000000000
--- a/arch/mips/vr4181/common/serial.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
- *
- * arch/mips/vr4181/common/serial.c
- *     initialize serial port on vr4181.
- *
- * This program is free software; you can redistribute	it and/or modify it
- * under  the terms of	the GNU General	 Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- */
-
-/*
- * [jsun, 010925]
- * You need to make sure rs_table has at least one element in
- * drivers/char/serial.c file.	There is no good way to do it right
- * now.	 A workaround is to include CONFIG_SERIAL_MANY_PORTS in your
- * configure file, which would gives you 64 ports and wastes 11K ram.
- */
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/serial.h>
-
-#include <asm/vr4181/vr4181.h>
-
-void __init vr4181_init_serial(void)
-{
-	struct serial_struct s;
-
-	/* turn on UART clock */
-	*VR4181_CMUCLKMSK |= VR4181_CMUCLKMSK_MSKSIU;
-
-	/* clear memory */
-	memset(&s, 0, sizeof(s));
-
-	s.line = 0;			/* we set the first one */
-	s.baud_base = 1152000;
-	s.irq = VR4181_IRQ_SIU;
-	s.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST; /* STD_COM_FLAGS */
-	s.iomem_base = (u8*)VR4181_SIURB;
-	s.iomem_reg_shift = 0;
-	s.io_type = SERIAL_IO_MEM;
-	if (early_serial_setup(&s) != 0) {
-		panic("vr4181_init_serial() failed!");
-	}
-}
-
diff --git a/arch/mips/vr4181/common/time.c b/arch/mips/vr4181/common/time.c
deleted file mode 100644
index 17814076b6f..00000000000
--- a/arch/mips/vr4181/common/time.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: jsun@mvista.com or jsun@junsun.net
- *
- * rtc and time ops for vr4181.	 Part of code is drived from
- * linux-vr, originally written	 by Bradley D. LaRonde & Michael Klar.
- *
- * This program is free software; you can redistribute	it and/or modify it
- * under  the terms of	the GNU General	 Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-#include <linux/param.h>			/* for HZ */
-#include <linux/time.h>
-#include <linux/interrupt.h>
-
-#include <asm/system.h>
-#include <asm/time.h>
-
-#include <asm/vr4181/vr4181.h>
-
-#define COUNTS_PER_JIFFY ((32768 + HZ/2) / HZ)
-
-/*
- * RTC ops
- */
-
-DEFINE_SPINLOCK(rtc_lock);
-
-/* per VR41xx docs, bad data can be read if between 2 counts */
-static inline unsigned short
-read_time_reg(volatile unsigned short *reg)
-{
-	unsigned short value;
-	do {
-		value = *reg;
-		barrier();
-	} while (value != *reg);
-	return value;
-}
-
-static unsigned long
-vr4181_rtc_get_time(void)
-{
-	unsigned short regh, regm, regl;
-
-	// why this crazy order, you ask?  to guarantee that neither m
-	// nor l wrap before all 3 read
-	do {
-		regm = read_time_reg(VR4181_ETIMEMREG);
-		barrier();
-		regh = read_time_reg(VR4181_ETIMEHREG);
-		barrier();
-		regl = read_time_reg(VR4181_ETIMELREG);
-	} while (regm != read_time_reg(VR4181_ETIMEMREG));
-	return ((regh << 17) | (regm << 1) | (regl >> 15));
-}
-
-static int
-vr4181_rtc_set_time(unsigned long timeval)
-{
-	unsigned short intreg;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-	intreg = *VR4181_RTCINTREG & 0x05;
-	barrier();
-	*VR4181_ETIMELREG = timeval << 15;
-	*VR4181_ETIMEMREG = timeval >> 1;
-	*VR4181_ETIMEHREG = timeval >> 17;
-	barrier();
-	// assume that any ints that just triggered are invalid, since the
-	// time value is written non-atomically in 3 separate regs
-	*VR4181_RTCINTREG = 0x05 ^ intreg;
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	return 0;
-}
-
-
-/*
- * timer interrupt routine (wrapper)
- *
- * we need our own interrupt routine because we need to clear
- * RTC1 interrupt.
- */
-static void
-vr4181_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-	/* Clear the interrupt. */
-	*VR4181_RTCINTREG = 0x2;
-
-	/* call the generic one */
-	timer_interrupt(irq, dev_id, regs);
-}
-
-
-/*
- * vr4181_time_init:
- *
- * We pick the following choices:
- *   . we use elapsed timer as the RTC.	 We set some reasonable init data since
- *     it does not persist across reset
- *   . we use RTC1 as the system timer interrupt source.
- *   . we use CPU counter for fast_gettimeoffset and we calivrate the cpu
- *     frequency.  In other words, we use calibrate_div64_gettimeoffset().
- *   . we use our own timer interrupt routine which clears the interrupt
- *     and then calls the generic high-level timer interrupt routine.
- *
- */
-
-extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
-
-static void
-vr4181_timer_setup(struct irqaction *irq)
-{
-	/* over-write the handler to be our own one */
-	irq->handler = vr4181_timer_interrupt;
-
-	/* sets up the frequency */
-	*VR4181_RTCL1LREG = COUNTS_PER_JIFFY;
-	*VR4181_RTCL1HREG = 0;
-
-	/* and ack any pending ints */
-	*VR4181_RTCINTREG = 0x2;
-
-	/* setup irqaction */
-	setup_irq(VR4181_IRQ_INT1, irq);
-
-}
-
-void
-vr4181_init_time(void)
-{
-	/* setup hookup functions */
-	rtc_get_time = vr4181_rtc_get_time;
-	rtc_set_time = vr4181_rtc_set_time;
-
-	board_timer_setup = vr4181_timer_setup;
-}
-
diff --git a/arch/mips/vr4181/osprey/Makefile b/arch/mips/vr4181/osprey/Makefile
deleted file mode 100644
index 34be0579088..00000000000
--- a/arch/mips/vr4181/osprey/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Makefile for common code of NEC Osprey board
-#
-
-obj-y	 := setup.o prom.o reset.o
-
-obj-$(CONFIG_KGDB)	+= dbg_io.o
diff --git a/arch/mips/vr4181/osprey/dbg_io.c b/arch/mips/vr4181/osprey/dbg_io.c
deleted file mode 100644
index 5e8a84072d5..00000000000
--- a/arch/mips/vr4181/osprey/dbg_io.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * kgdb io functions for osprey.  We use the serial port on debug board.
- *
- * Copyright (C) 2001 MontaVista Software Inc.
- * Author: jsun@mvista.com or jsun@junsun.net
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- */
-
-/* ======================= CONFIG ======================== */
-
-/* [jsun] we use the second serial port for kdb */
-#define         BASE                    0xb7fffff0
-#define         MAX_BAUD                115200
-
-/* distance in bytes between two serial registers */
-#define         REG_OFFSET              1
-
-/*
- * 0 - kgdb does serial init
- * 1 - kgdb skip serial init
- */
-static int remoteDebugInitialized = 1;
-
-/*
- * the default baud rate *if* kgdb does serial init
- */
-#define		BAUD_DEFAULT		UART16550_BAUD_38400
-
-/* ======================= END OF CONFIG ======================== */
-
-typedef unsigned char uint8;
-typedef unsigned int uint32;
-
-#define         UART16550_BAUD_2400             2400
-#define         UART16550_BAUD_4800             4800
-#define         UART16550_BAUD_9600             9600
-#define         UART16550_BAUD_19200            19200
-#define         UART16550_BAUD_38400            38400
-#define         UART16550_BAUD_57600            57600
-#define         UART16550_BAUD_115200           115200
-
-#define         UART16550_PARITY_NONE           0
-#define         UART16550_PARITY_ODD            0x08
-#define         UART16550_PARITY_EVEN           0x18
-#define         UART16550_PARITY_MARK           0x28
-#define         UART16550_PARITY_SPACE          0x38
-
-#define         UART16550_DATA_5BIT             0x0
-#define         UART16550_DATA_6BIT             0x1
-#define         UART16550_DATA_7BIT             0x2
-#define         UART16550_DATA_8BIT             0x3
-
-#define         UART16550_STOP_1BIT             0x0
-#define         UART16550_STOP_2BIT             0x4
-
-/* register offset */
-#define         OFS_RCV_BUFFER          0
-#define         OFS_TRANS_HOLD          0
-#define         OFS_SEND_BUFFER         0
-#define         OFS_INTR_ENABLE         (1*REG_OFFSET)
-#define         OFS_INTR_ID             (2*REG_OFFSET)
-#define         OFS_DATA_FORMAT         (3*REG_OFFSET)
-#define         OFS_LINE_CONTROL        (3*REG_OFFSET)
-#define         OFS_MODEM_CONTROL       (4*REG_OFFSET)
-#define         OFS_RS232_OUTPUT        (4*REG_OFFSET)
-#define         OFS_LINE_STATUS         (5*REG_OFFSET)
-#define         OFS_MODEM_STATUS        (6*REG_OFFSET)
-#define         OFS_RS232_INPUT         (6*REG_OFFSET)
-#define         OFS_SCRATCH_PAD         (7*REG_OFFSET)
-
-#define         OFS_DIVISOR_LSB         (0*REG_OFFSET)
-#define         OFS_DIVISOR_MSB         (1*REG_OFFSET)
-
-
-/* memory-mapped read/write of the port */
-#define         UART16550_READ(y)    (*((volatile uint8*)(BASE + y)))
-#define         UART16550_WRITE(y, z)  ((*((volatile uint8*)(BASE + y))) = z)
-
-void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop)
-{
-        /* disable interrupts */
-        UART16550_WRITE(OFS_INTR_ENABLE, 0);
-
-        /* set up buad rate */
-        {
-                uint32 divisor;
-
-                /* set DIAB bit */
-                UART16550_WRITE(OFS_LINE_CONTROL, 0x80);
-
-                /* set divisor */
-                divisor = MAX_BAUD / baud;
-                UART16550_WRITE(OFS_DIVISOR_LSB, divisor & 0xff);
-                UART16550_WRITE(OFS_DIVISOR_MSB, (divisor & 0xff00) >> 8);
-
-                /* clear DIAB bit */
-                UART16550_WRITE(OFS_LINE_CONTROL, 0x0);
-        }
-
-        /* set data format */
-        UART16550_WRITE(OFS_DATA_FORMAT, data | parity | stop);
-}
-
-
-uint8 getDebugChar(void)
-{
-        if (!remoteDebugInitialized) {
-                remoteDebugInitialized = 1;
-                debugInit(BAUD_DEFAULT,
-                          UART16550_DATA_8BIT,
-                          UART16550_PARITY_NONE, UART16550_STOP_1BIT);
-        }
-
-        while ((UART16550_READ(OFS_LINE_STATUS) & 0x1) == 0);
-        return UART16550_READ(OFS_RCV_BUFFER);
-}
-
-
-int putDebugChar(uint8 byte)
-{
-        if (!remoteDebugInitialized) {
-                remoteDebugInitialized = 1;
-                debugInit(BAUD_DEFAULT,
-                          UART16550_DATA_8BIT,
-                          UART16550_PARITY_NONE, UART16550_STOP_1BIT);
-        }
-
-        while ((UART16550_READ(OFS_LINE_STATUS) & 0x20) == 0);
-        UART16550_WRITE(OFS_SEND_BUFFER, byte);
-        return 1;
-}
diff --git a/arch/mips/vr4181/osprey/prom.c b/arch/mips/vr4181/osprey/prom.c
deleted file mode 100644
index af0d1456161..00000000000
--- a/arch/mips/vr4181/osprey/prom.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: jsun@mvista.com or jsun@junsun.net
- *
- * arch/mips/vr4181/osprey/prom.c
- *     prom code for osprey.
- *
- * This program is free software; you can redistribute	it and/or modify it
- * under  the terms of	the GNU General	 Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <asm/bootinfo.h>
-#include <asm/addrspace.h>
-
-const char *get_system_type(void)
-{
-	return "NEC_Vr41xx Osprey";
-}
-
-/*
- * [jsun] right now we assume it is the nec debug monitor, which does
- * not pass any arguments.
- */
-void __init prom_init(void)
-{
-	// cmdline is now set in default config
-	// strcpy(arcs_cmdline, "ip=bootp ");
-	// strcat(arcs_cmdline, "ether=46,0x03fe0300,eth0 ");
-	// strcpy(arcs_cmdline, "ether=0,0x0300,eth0 "
-	// strcat(arcs_cmdline, "video=vr4181fb:xres:240,yres:320,bpp:8 ");
-
-	mips_machgroup = MACH_GROUP_NEC_VR41XX;
-	mips_machtype = MACH_NEC_OSPREY;
-
-	/* 16MB fixed */
-	add_memory_region(0, 16 << 20, BOOT_MEM_RAM);
-}
-
-unsigned long __init prom_free_prom_memory(void)
-{
-	return 0;
-}
diff --git a/arch/mips/vr4181/osprey/reset.c b/arch/mips/vr4181/osprey/reset.c
deleted file mode 100644
index 036ae83d89d..00000000000
--- a/arch/mips/vr4181/osprey/reset.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * This program is free software; you can redistribute	it and/or modify it
- * under  the terms of	the GNU General	 Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- * Copyright (C) 1997, 2001 Ralf Baechle
- * Copyright 2001 MontaVista Software Inc.
- * Author: jsun@mvista.com or jsun@junsun.net
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <asm/io.h>
-#include <asm/cacheflush.h>
-#include <asm/processor.h>
-#include <asm/reboot.h>
-#include <asm/system.h>
-
-void nec_osprey_restart(char *command)
-{
-	set_c0_status(ST0_ERL);
-	change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
-	flush_cache_all();
-	write_c0_wired(0);
-	__asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
-}
-
-void nec_osprey_halt(void)
-{
-	printk(KERN_NOTICE "\n** You can safely turn off the power\n");
-	while (1)
-		__asm__(".set\tmips3\n\t"
-			"wait\n\t"
-			".set\tmips0");
-}
-
-void nec_osprey_power_off(void)
-{
-	nec_osprey_halt();
-}
diff --git a/arch/mips/vr4181/osprey/setup.c b/arch/mips/vr4181/osprey/setup.c
deleted file mode 100644
index 2ff7140e7ed..00000000000
--- a/arch/mips/vr4181/osprey/setup.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * linux/arch/mips/vr4181/setup.c
- *
- * VR41xx setup routines
- *
- * Copyright (C) 1999 Bradley D. LaRonde
- * Copyright (C) 1999, 2000 Michael Klar
- *
- * Copyright 2001 MontaVista Software Inc.
- * Author: jsun@mvista.com or jsun@junsun.net
- * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-
-#include <linux/ide.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <asm/reboot.h>
-#include <asm/vr4181/vr4181.h>
-#include <asm/io.h>
-
-
-extern void nec_osprey_restart(char* c);
-extern void nec_osprey_halt(void);
-extern void nec_osprey_power_off(void);
-
-extern void vr4181_init_serial(void);
-extern void vr4181_init_time(void);
-
-static void __init nec_osprey_setup(void)
-{
-	set_io_port_base(VR4181_PORT_BASE);
-	isa_slot_offset = VR4181_ISAMEM_BASE;
-
-	vr4181_init_serial();
-	vr4181_init_time();
-
-	_machine_restart = nec_osprey_restart;
-	_machine_halt = nec_osprey_halt;
-	_machine_power_off = nec_osprey_power_off;
-
-	/* setup resource limit */
-	ioport_resource.end = 0xffffffff;
-	iomem_resource.end = 0xffffffff;
-
-	/* [jsun] hack */
-	/*
-	printk("[jsun] hack to change external ISA control register, %x -> %x\n",
-		(*VR4181_XISACTL),
-		(*VR4181_XISACTL) | 0x2);
-	*VR4181_XISACTL |= 0x2;
-	*/
-
-	// *VR4181_GPHIBSTH = 0x2000;
-	// *VR4181_GPMD0REG = 0x00c0;
-	// *VR4181_GPINTEN	 = 1<<6;
-
-	/* [jsun] I believe this will get the interrupt type right
-	 * for the ether port.
-	 */
-	*VR4181_GPINTTYPL = 0x3000;
-}
-
-early_initcall(nec_osprey_setup);