Linux-2.6.12-rc2v2.6.12-rc2

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

Let it rip!

4 files changed, 1912 insertions, 0 deletions

diff --git a/arch/mips/tx4927/toshiba_rbtx4927/Makefile b/arch/mips/tx4927/toshiba_rbtx4927/Makefile
new file mode 100644
index 000000000000..86ca4cf2d587
--- /dev/null
+++ b/arch/mips/tx4927/toshiba_rbtx4927/Makefile
@@ -0,0 +1,5 @@
+obj-y	+= toshiba_rbtx4927_prom.o 
+obj-y	+= toshiba_rbtx4927_setup.o 
+obj-y	+= toshiba_rbtx4927_irq.o 
+
+EXTRA_AFLAGS := $(CFLAGS)
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
new file mode 100644
index 000000000000..fd5b433f83b7
--- /dev/null
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
@@ -0,0 +1,786 @@
+/*
+ * linux/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
+ *
+ * Toshiba RBTX4927 specific interrupt handlers
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+IRQ  Device  
+00   RBTX4927-ISA/00
+01   RBTX4927-ISA/01 PS2/Keyboard
+02   RBTX4927-ISA/02 Cascade RBTX4927-ISA (irqs 8-15)
+03   RBTX4927-ISA/03
+04   RBTX4927-ISA/04
+05   RBTX4927-ISA/05
+06   RBTX4927-ISA/06
+07   RBTX4927-ISA/07
+08   RBTX4927-ISA/08
+09   RBTX4927-ISA/09
+10   RBTX4927-ISA/10
+11   RBTX4927-ISA/11
+12   RBTX4927-ISA/12 PS2/Mouse (not supported at this time)
+13   RBTX4927-ISA/13
+14   RBTX4927-ISA/14 IDE
+15   RBTX4927-ISA/15
+
+16   TX4927-CP0/00 Software 0
+17   TX4927-CP0/01 Software 1
+18   TX4927-CP0/02 Cascade TX4927-CP0
+19   TX4927-CP0/03 Multiplexed -- do not use 
+20   TX4927-CP0/04 Multiplexed -- do not use 
+21   TX4927-CP0/05 Multiplexed -- do not use 
+22   TX4927-CP0/06 Multiplexed -- do not use 
+23   TX4927-CP0/07 CPU TIMER
+
+24   TX4927-PIC/00
+25   TX4927-PIC/01
+26   TX4927-PIC/02  
+27   TX4927-PIC/03 Cascade RBTX4927-IOC
+28   TX4927-PIC/04
+29   TX4927-PIC/05 RBTX4927 RTL-8019AS ethernet
+30   TX4927-PIC/06
+31   TX4927-PIC/07
+32   TX4927-PIC/08 TX4927 SerialIO Channel 0
+33   TX4927-PIC/09 TX4927 SerialIO Channel 1
+34   TX4927-PIC/10
+35   TX4927-PIC/11
+36   TX4927-PIC/12
+37   TX4927-PIC/13
+38   TX4927-PIC/14
+39   TX4927-PIC/15
+40   TX4927-PIC/16 TX4927 PCI PCI-C
+41   TX4927-PIC/17
+42   TX4927-PIC/18
+43   TX4927-PIC/19
+44   TX4927-PIC/20
+45   TX4927-PIC/21
+46   TX4927-PIC/22 TX4927 PCI PCI-ERR 
+47   TX4927-PIC/23 TX4927 PCI PCI-PMA (not used)
+48   TX4927-PIC/24
+49   TX4927-PIC/25
+50   TX4927-PIC/26
+51   TX4927-PIC/27
+52   TX4927-PIC/28
+53   TX4927-PIC/29
+54   TX4927-PIC/30
+55   TX4927-PIC/31
+
+56 RBTX4927-IOC/00 FPCIB0 PCI-D PJ4/A PJ5/B SB/C PJ6/D PJ7/A (SouthBridge/NotUsed)        [RTL-8139=PJ4]
+57 RBTX4927-IOC/01 FPCIB0 PCI-C PJ4/D PJ5/A SB/B PJ6/C PJ7/D (SouthBridge/NotUsed)        [RTL-8139=PJ5]
+58 RBTX4927-IOC/02 FPCIB0 PCI-B PJ4/C PJ5/D SB/A PJ6/B PJ7/C (SouthBridge/IDE/pin=1,INTR) [RTL-8139=NotSupported]
+59 RBTX4927-IOC/03 FPCIB0 PCI-A PJ4/B PJ5/C SB/D PJ6/A PJ7/B (SouthBridge/USB/pin=4)      [RTL-8139=PJ6]
+60 RBTX4927-IOC/04
+61 RBTX4927-IOC/05
+62 RBTX4927-IOC/06
+63 RBTX4927-IOC/07
+
+NOTES: 
+SouthBridge/INTR is mapped to SouthBridge/A=PCI-B/#58
+SouthBridge/ISA/pin=0 no pci irq used by this device
+SouthBridge/IDE/pin=1 no pci irq used by this device, using INTR via ISA IRQ14
+SouthBridge/USB/pin=4 using pci irq SouthBridge/D=PCI-A=#59
+SouthBridge/PMC/pin=0 no pci irq used by this device
+SuperIO/PS2/Keyboard, using INTR via ISA IRQ1
+SuperIO/PS2/Mouse, using INTR via ISA IRQ12 (mouse not currently supported)
+JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthBridge, JP4, JP5, JP6
+*/
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/timex.h>
+#include <asm/bootinfo.h>
+#include <asm/page.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/pci.h>
+#include <asm/processor.h>
+#include <asm/ptrace.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <linux/bootmem.h>
+#include <linux/blkdev.h>
+#ifdef CONFIG_RTC_DS1742
+#include <linux/ds1742rtc.h>
+#endif
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#include <asm/tx4927/smsc_fdc37m81x.h>
+#endif
+#include <asm/tx4927/toshiba_rbtx4927.h>
+
+
+#undef TOSHIBA_RBTX4927_IRQ_DEBUG
+
+#ifdef TOSHIBA_RBTX4927_IRQ_DEBUG
+#define TOSHIBA_RBTX4927_IRQ_NONE        0x00000000
+
+#define TOSHIBA_RBTX4927_IRQ_INFO          ( 1 <<  0 )
+#define TOSHIBA_RBTX4927_IRQ_WARN          ( 1 <<  1 )
+#define TOSHIBA_RBTX4927_IRQ_EROR          ( 1 <<  2 )
+
+#define TOSHIBA_RBTX4927_IRQ_IOC_INIT      ( 1 << 10 )
+#define TOSHIBA_RBTX4927_IRQ_IOC_STARTUP   ( 1 << 11 )
+#define TOSHIBA_RBTX4927_IRQ_IOC_SHUTDOWN  ( 1 << 12 )
+#define TOSHIBA_RBTX4927_IRQ_IOC_ENABLE    ( 1 << 13 )
+#define TOSHIBA_RBTX4927_IRQ_IOC_DISABLE   ( 1 << 14 )
+#define TOSHIBA_RBTX4927_IRQ_IOC_MASK      ( 1 << 15 )
+#define TOSHIBA_RBTX4927_IRQ_IOC_ENDIRQ    ( 1 << 16 )
+
+#define TOSHIBA_RBTX4927_IRQ_ISA_INIT      ( 1 << 20 )
+#define TOSHIBA_RBTX4927_IRQ_ISA_STARTUP   ( 1 << 21 )
+#define TOSHIBA_RBTX4927_IRQ_ISA_SHUTDOWN  ( 1 << 22 )
+#define TOSHIBA_RBTX4927_IRQ_ISA_ENABLE    ( 1 << 23 )
+#define TOSHIBA_RBTX4927_IRQ_ISA_DISABLE   ( 1 << 24 )
+#define TOSHIBA_RBTX4927_IRQ_ISA_MASK      ( 1 << 25 )
+#define TOSHIBA_RBTX4927_IRQ_ISA_ENDIRQ    ( 1 << 26 )
+
+#define TOSHIBA_RBTX4927_SETUP_ALL         0xffffffff
+#endif
+
+
+#ifdef TOSHIBA_RBTX4927_IRQ_DEBUG
+static const u32 toshiba_rbtx4927_irq_debug_flag =
+    (TOSHIBA_RBTX4927_IRQ_NONE | TOSHIBA_RBTX4927_IRQ_INFO |
+     TOSHIBA_RBTX4927_IRQ_WARN | TOSHIBA_RBTX4927_IRQ_EROR
+//                                                 | TOSHIBA_RBTX4927_IRQ_IOC_INIT  
+//                                                 | TOSHIBA_RBTX4927_IRQ_IOC_STARTUP  
+//                                                 | TOSHIBA_RBTX4927_IRQ_IOC_SHUTDOWN  
+//                                                 | TOSHIBA_RBTX4927_IRQ_IOC_ENABLE  
+//                                                 | TOSHIBA_RBTX4927_IRQ_IOC_DISABLE  
+//                                                 | TOSHIBA_RBTX4927_IRQ_IOC_MASK  
+//                                                 | TOSHIBA_RBTX4927_IRQ_IOC_ENDIRQ  
+//                                                 | TOSHIBA_RBTX4927_IRQ_ISA_INIT  
+//                                                 | TOSHIBA_RBTX4927_IRQ_ISA_STARTUP  
+//                                                 | TOSHIBA_RBTX4927_IRQ_ISA_SHUTDOWN  
+//                                                 | TOSHIBA_RBTX4927_IRQ_ISA_ENABLE  
+//                                                 | TOSHIBA_RBTX4927_IRQ_ISA_DISABLE  
+//                                                 | TOSHIBA_RBTX4927_IRQ_ISA_MASK  
+//                                                 | TOSHIBA_RBTX4927_IRQ_ISA_ENDIRQ
+    );
+#endif
+
+
+#ifdef TOSHIBA_RBTX4927_IRQ_DEBUG
+#define TOSHIBA_RBTX4927_IRQ_DPRINTK(flag,str...) \
+        if ( (toshiba_rbtx4927_irq_debug_flag) & (flag) ) \
+        { \
+           char tmp[100]; \
+           sprintf( tmp, str ); \
+           printk( "%s(%s:%u)::%s", __FUNCTION__, __FILE__, __LINE__, tmp ); \
+        }
+#else
+#define TOSHIBA_RBTX4927_IRQ_DPRINTK(flag,str...)
+#endif
+
+
+
+
+#define TOSHIBA_RBTX4927_IRQ_IOC_RAW_BEG   0
+#define TOSHIBA_RBTX4927_IRQ_IOC_RAW_END   7
+
+#define TOSHIBA_RBTX4927_IRQ_IOC_BEG  ((TX4927_IRQ_PIC_END+1)+TOSHIBA_RBTX4927_IRQ_IOC_RAW_BEG)	/* 56 */
+#define TOSHIBA_RBTX4927_IRQ_IOC_END  ((TX4927_IRQ_PIC_END+1)+TOSHIBA_RBTX4927_IRQ_IOC_RAW_END)	/* 63 */
+
+
+#define TOSHIBA_RBTX4927_IRQ_ISA_BEG MI8259_IRQ_ISA_BEG
+#define TOSHIBA_RBTX4927_IRQ_ISA_END MI8259_IRQ_ISA_END
+#define TOSHIBA_RBTX4927_IRQ_ISA_MID ((TOSHIBA_RBTX4927_IRQ_ISA_BEG+TOSHIBA_RBTX4927_IRQ_ISA_END+1)/2)
+
+
+#define TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC TX4927_IRQ_NEST_EXT_ON_PIC
+#define TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC (TOSHIBA_RBTX4927_IRQ_IOC_BEG+2)
+#define TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_ISA (TOSHIBA_RBTX4927_IRQ_ISA_BEG+2)
+
+extern int tx4927_using_backplane;
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+extern void enable_8259A_irq(unsigned int irq);
+extern void disable_8259A_irq(unsigned int irq);
+extern void mask_and_ack_8259A(unsigned int irq);
+#endif
+
+static unsigned int toshiba_rbtx4927_irq_ioc_startup(unsigned int irq);
+static void toshiba_rbtx4927_irq_ioc_shutdown(unsigned int irq);
+static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq);
+static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq);
+static void toshiba_rbtx4927_irq_ioc_mask_and_ack(unsigned int irq);
+static void toshiba_rbtx4927_irq_ioc_end(unsigned int irq);
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static unsigned int toshiba_rbtx4927_irq_isa_startup(unsigned int irq);
+static void toshiba_rbtx4927_irq_isa_shutdown(unsigned int irq);
+static void toshiba_rbtx4927_irq_isa_enable(unsigned int irq);
+static void toshiba_rbtx4927_irq_isa_disable(unsigned int irq);
+static void toshiba_rbtx4927_irq_isa_mask_and_ack(unsigned int irq);
+static void toshiba_rbtx4927_irq_isa_end(unsigned int irq);
+#endif
+
+static DEFINE_SPINLOCK(toshiba_rbtx4927_ioc_lock);
+
+
+#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC"
+static struct hw_interrupt_type toshiba_rbtx4927_irq_ioc_type = {
+	.typename = TOSHIBA_RBTX4927_IOC_NAME,
+	.startup = toshiba_rbtx4927_irq_ioc_startup,
+	.shutdown = toshiba_rbtx4927_irq_ioc_shutdown,
+	.enable = toshiba_rbtx4927_irq_ioc_enable,
+	.disable = toshiba_rbtx4927_irq_ioc_disable,
+	.ack = toshiba_rbtx4927_irq_ioc_mask_and_ack,
+	.end = toshiba_rbtx4927_irq_ioc_end,
+	.set_affinity = NULL
+};
+#define TOSHIBA_RBTX4927_IOC_INTR_ENAB 0xbc002000
+#define TOSHIBA_RBTX4927_IOC_INTR_STAT 0xbc002006
+
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#define TOSHIBA_RBTX4927_ISA_NAME "RBTX4927-ISA"
+static struct hw_interrupt_type toshiba_rbtx4927_irq_isa_type = {
+	.typename = TOSHIBA_RBTX4927_ISA_NAME,
+	.startup = toshiba_rbtx4927_irq_isa_startup,
+	.shutdown = toshiba_rbtx4927_irq_isa_shutdown,
+	.enable = toshiba_rbtx4927_irq_isa_enable,
+	.disable = toshiba_rbtx4927_irq_isa_disable,
+	.ack = toshiba_rbtx4927_irq_isa_mask_and_ack,
+	.end = toshiba_rbtx4927_irq_isa_end,
+	.set_affinity = NULL
+};
+#endif
+
+
+u32 bit2num(u32 num)
+{
+	u32 i;
+
+	for (i = 0; i < (sizeof(num) * 8); i++) {
+		if (num & (1 << i)) {
+			return (i);
+		}
+	}
+	return (0);
+}
+
+int toshiba_rbtx4927_irq_nested(int sw_irq)
+{
+	u32 level3;
+	u32 level4;
+	u32 level5;
+
+	level3 = reg_rd08(TOSHIBA_RBTX4927_IOC_INTR_STAT) & 0x1f;
+	if (level3) {
+		sw_irq = TOSHIBA_RBTX4927_IRQ_IOC_BEG + bit2num(level3);
+		if (sw_irq != TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC) {
+			goto RETURN;
+		}
+	}
+#ifdef CONFIG_TOSHIBA_FPCIB0
+	{
+		if (tx4927_using_backplane) {
+			outb(0x0A, 0x20);
+			level4 = inb(0x20) & 0xff;
+			if (level4) {
+				sw_irq =
+				    TOSHIBA_RBTX4927_IRQ_ISA_BEG +
+				    bit2num(level4);
+				if (sw_irq !=
+				    TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_ISA) {
+					goto RETURN;
+				}
+			}
+
+			outb(0x0A, 0xA0);
+			level5 = inb(0xA0) & 0xff;
+			if (level5) {
+				sw_irq =
+				    TOSHIBA_RBTX4927_IRQ_ISA_MID +
+				    bit2num(level5);
+				goto RETURN;
+			}
+		}
+	}
+#endif
+
+      RETURN:
+	return (sw_irq);
+}
+
+//#define TOSHIBA_RBTX4927_PIC_ACTION(s) { no_action, 0, CPU_MASK_NONE, s, NULL, NULL }
+#define TOSHIBA_RBTX4927_PIC_ACTION(s) { no_action, SA_SHIRQ, CPU_MASK_NONE, s, NULL, NULL }
+static struct irqaction toshiba_rbtx4927_irq_ioc_action =
+TOSHIBA_RBTX4927_PIC_ACTION(TOSHIBA_RBTX4927_IOC_NAME);
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static struct irqaction toshiba_rbtx4927_irq_isa_master =
+TOSHIBA_RBTX4927_PIC_ACTION(TOSHIBA_RBTX4927_ISA_NAME "/M");
+static struct irqaction toshiba_rbtx4927_irq_isa_slave =
+TOSHIBA_RBTX4927_PIC_ACTION(TOSHIBA_RBTX4927_ISA_NAME "/S");
+#endif
+
+
+/**********************************************************************************/
+/* Functions for ioc                                                              */
+/**********************************************************************************/
+
+
+static void __init toshiba_rbtx4927_irq_ioc_init(void)
+{
+	int i;
+
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_INIT,
+				     "beg=%d end=%d\n",
+				     TOSHIBA_RBTX4927_IRQ_IOC_BEG,
+				     TOSHIBA_RBTX4927_IRQ_IOC_END);
+
+	for (i = TOSHIBA_RBTX4927_IRQ_IOC_BEG;
+	     i <= TOSHIBA_RBTX4927_IRQ_IOC_END; i++) {
+		irq_desc[i].status = IRQ_DISABLED;
+		irq_desc[i].action = 0;
+		irq_desc[i].depth = 3;
+		irq_desc[i].handler = &toshiba_rbtx4927_irq_ioc_type;
+	}
+
+	setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC,
+		  &toshiba_rbtx4927_irq_ioc_action);
+
+	return;
+}
+
+static unsigned int toshiba_rbtx4927_irq_ioc_startup(unsigned int irq)
+{
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_STARTUP,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	toshiba_rbtx4927_irq_ioc_enable(irq);
+
+	return (0);
+}
+
+
+static void toshiba_rbtx4927_irq_ioc_shutdown(unsigned int irq)
+{
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_SHUTDOWN,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	toshiba_rbtx4927_irq_ioc_disable(irq);
+
+	return;
+}
+
+
+static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq)
+{
+	unsigned long flags;
+	volatile unsigned char v;
+
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_ENABLE,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	spin_lock_irqsave(&toshiba_rbtx4927_ioc_lock, flags);
+
+	v = TX4927_RD08(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+	v |= (1 << (irq - TOSHIBA_RBTX4927_IRQ_IOC_BEG));
+	TOSHIBA_RBTX4927_WR08(TOSHIBA_RBTX4927_IOC_INTR_ENAB, v);
+
+	spin_unlock_irqrestore(&toshiba_rbtx4927_ioc_lock, flags);
+
+	return;
+}
+
+
+static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq)
+{
+	unsigned long flags;
+	volatile unsigned char v;
+
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_DISABLE,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	spin_lock_irqsave(&toshiba_rbtx4927_ioc_lock, flags);
+
+	v = TX4927_RD08(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+	v &= ~(1 << (irq - TOSHIBA_RBTX4927_IRQ_IOC_BEG));
+	TOSHIBA_RBTX4927_WR08(TOSHIBA_RBTX4927_IOC_INTR_ENAB, v);
+
+	spin_unlock_irqrestore(&toshiba_rbtx4927_ioc_lock, flags);
+
+	return;
+}
+
+
+static void toshiba_rbtx4927_irq_ioc_mask_and_ack(unsigned int irq)
+{
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_MASK,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	toshiba_rbtx4927_irq_ioc_disable(irq);
+
+	return;
+}
+
+
+static void toshiba_rbtx4927_irq_ioc_end(unsigned int irq)
+{
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_ENDIRQ,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
+		toshiba_rbtx4927_irq_ioc_enable(irq);
+	}
+
+	return;
+}
+
+
+/**********************************************************************************/
+/* Functions for isa                                                              */
+/**********************************************************************************/
+
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static void __init toshiba_rbtx4927_irq_isa_init(void)
+{
+	int i;
+
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_INIT,
+				     "beg=%d end=%d\n",
+				     TOSHIBA_RBTX4927_IRQ_ISA_BEG,
+				     TOSHIBA_RBTX4927_IRQ_ISA_END);
+
+	for (i = TOSHIBA_RBTX4927_IRQ_ISA_BEG;
+	     i <= TOSHIBA_RBTX4927_IRQ_ISA_END; i++) {
+		irq_desc[i].status = IRQ_DISABLED;
+		irq_desc[i].action = 0;
+		irq_desc[i].depth =
+		    ((i < TOSHIBA_RBTX4927_IRQ_ISA_MID) ? (4) : (5));
+		irq_desc[i].handler = &toshiba_rbtx4927_irq_isa_type;
+	}
+
+	setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC,
+		  &toshiba_rbtx4927_irq_isa_master);
+	setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_ISA,
+		  &toshiba_rbtx4927_irq_isa_slave);
+
+	/* make sure we are looking at IRR (not ISR) */
+	outb(0x0A, 0x20);
+	outb(0x0A, 0xA0);
+
+	return;
+}
+#endif
+
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static unsigned int toshiba_rbtx4927_irq_isa_startup(unsigned int irq)
+{
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_STARTUP,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_ISA_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	toshiba_rbtx4927_irq_isa_enable(irq);
+
+	return (0);
+}
+#endif
+
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static void toshiba_rbtx4927_irq_isa_shutdown(unsigned int irq)
+{
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_SHUTDOWN,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_ISA_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	toshiba_rbtx4927_irq_isa_disable(irq);
+
+	return;
+}
+#endif
+
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static void toshiba_rbtx4927_irq_isa_enable(unsigned int irq)
+{
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_ENABLE,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_ISA_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	enable_8259A_irq(irq);
+
+	return;
+}
+#endif
+
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static void toshiba_rbtx4927_irq_isa_disable(unsigned int irq)
+{
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_DISABLE,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_ISA_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	disable_8259A_irq(irq);
+
+	return;
+}
+#endif
+
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static void toshiba_rbtx4927_irq_isa_mask_and_ack(unsigned int irq)
+{
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_MASK,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_ISA_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	mask_and_ack_8259A(irq);
+
+	return;
+}
+#endif
+
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static void toshiba_rbtx4927_irq_isa_end(unsigned int irq)
+{
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_ENDIRQ,
+				     "irq=%d\n", irq);
+
+	if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG
+	    || irq > TOSHIBA_RBTX4927_IRQ_ISA_END) {
+		TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
+					     "bad irq=%d\n", irq);
+		panic("\n");
+	}
+
+	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
+		toshiba_rbtx4927_irq_isa_enable(irq);
+	}
+
+	return;
+}
+#endif
+
+
+void __init arch_init_irq(void)
+{
+	extern void tx4927_irq_init(void);
+
+	local_irq_disable();
+
+	tx4927_irq_init();
+	toshiba_rbtx4927_irq_ioc_init();
+#ifdef CONFIG_TOSHIBA_FPCIB0
+	{
+		if (tx4927_using_backplane) {
+			toshiba_rbtx4927_irq_isa_init();
+		}
+	}
+#endif
+
+	wbflush();
+
+	return;
+}
+
+void toshiba_rbtx4927_irq_dump(char *key)
+{
+#ifdef TOSHIBA_RBTX4927_IRQ_DEBUG
+	{
+		u32 i, j = 0;
+		for (i = 0; i < NR_IRQS; i++) {
+			if (strcmp(irq_desc[i].handler->typename, "none")
+			    == 0)
+				continue;
+
+			if ((i >= 1)
+			    && (irq_desc[i - 1].handler->typename ==
+				irq_desc[i].handler->typename)) {
+				j++;
+			} else {
+				j = 0;
+			}
+			TOSHIBA_RBTX4927_IRQ_DPRINTK
+			    (TOSHIBA_RBTX4927_IRQ_INFO,
+			     "%s irq=0x%02x/%3d s=0x%08x h=0x%08x a=0x%08x ah=0x%08x d=%1d n=%s/%02d\n",
+			     key, i, i, irq_desc[i].status,
+			     (u32) irq_desc[i].handler,
+			     (u32) irq_desc[i].action,
+			     (u32) (irq_desc[i].action ? irq_desc[i].
+				    action->handler : 0),
+			     irq_desc[i].depth,
+			     irq_desc[i].handler->typename, j);
+		}
+	}
+#endif
+	return;
+}
+
+void toshiba_rbtx4927_irq_dump_pics(char *s)
+{
+	u32 level0_m;
+	u32 level0_s;
+	u32 level1_m;
+	u32 level1_s;
+	u32 level2;
+	u32 level2_p;
+	u32 level2_s;
+	u32 level3_m;
+	u32 level3_s;
+	u32 level4_m;
+	u32 level4_s;
+	u32 level5_m;
+	u32 level5_s;
+
+	if (s == NULL)
+		s = "null";
+
+	level0_m = (read_c0_status() & 0x0000ff00) >> 8;
+	level0_s = (read_c0_cause() & 0x0000ff00) >> 8;
+
+	level1_m = level0_m;
+	level1_s = level0_s & 0x87;
+
+	level2 = TX4927_RD(0xff1ff6a0);
+	level2_p = (((level2 & 0x10000)) ? 0 : 1);
+	level2_s = (((level2 & 0x1f) == 0x1f) ? 0 : (level2 & 0x1f));
+
+	level3_m = reg_rd08(TOSHIBA_RBTX4927_IOC_INTR_ENAB) & 0x1f;
+	level3_s = reg_rd08(TOSHIBA_RBTX4927_IOC_INTR_STAT) & 0x1f;
+
+	level4_m = inb(0x21);
+	outb(0x0A, 0x20);
+	level4_s = inb(0x20);
+
+	level5_m = inb(0xa1);
+	outb(0x0A, 0xa0);
+	level5_s = inb(0xa0);
+
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
+				     "dump_raw_pic() ");
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
+				     "cp0:m=0x%02x/s=0x%02x ", level0_m,
+				     level0_s);
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
+				     "cp0:m=0x%02x/s=0x%02x ", level1_m,
+				     level1_s);
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
+				     "pic:e=0x%02x/s=0x%02x ", level2_p,
+				     level2_s);
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
+				     "ioc:m=0x%02x/s=0x%02x ", level3_m,
+				     level3_s);
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
+				     "sbm:m=0x%02x/s=0x%02x ", level4_m,
+				     level4_s);
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
+				     "sbs:m=0x%02x/s=0x%02x ", level5_m,
+				     level5_s);
+	TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO, "[%s]\n",
+				     s);
+
+	return;
+}
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c
new file mode 100644
index 000000000000..e4d095d3e192
--- /dev/null
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c
@@ -0,0 +1,97 @@
+/*
+ * rbtx4927 specific prom routines
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ * Copyright (C) 2004 MontaVista Software Inc.
+ * Author: Manish Lachwani, mlachwani@mvista.com
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/bootmem.h>
+
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+#include <asm/cpu.h>
+#include <asm/tx4927/tx4927.h>
+
+void __init prom_init_cmdline(void)
+{
+	int argc = (int) fw_arg0;
+	char **argv = (char **) fw_arg1;
+	int i;			/* Always ignore the "-c" at argv[0] */
+
+	/* ignore all built-in args if any f/w args given */
+	if (argc > 1) {
+		*arcs_cmdline = '\0';
+	}
+
+	for (i = 1; i < argc; i++) {
+		if (i != 1) {
+			strcat(arcs_cmdline, " ");
+		}
+		strcat(arcs_cmdline, argv[i]);
+	}
+}
+
+void __init prom_init(void)
+{
+	const char* toshiba_name_list[] = GROUP_TOSHIBA_NAMES;
+	extern int tx4927_get_mem_size(void);
+	extern char* toshiba_name;
+	int msize;
+
+	prom_init_cmdline();
+
+	mips_machgroup = MACH_GROUP_TOSHIBA;
+
+	if ((read_c0_prid() & 0xff) == PRID_REV_TX4927)
+		mips_machtype = MACH_TOSHIBA_RBTX4927;
+	else
+		mips_machtype = MACH_TOSHIBA_RBTX4937;
+
+        toshiba_name = toshiba_name_list[mips_machtype];
+
+	msize = tx4927_get_mem_size();
+	add_memory_region(0, msize << 20, BOOT_MEM_RAM);
+}
+
+unsigned long __init prom_free_prom_memory(void)
+{
+	return 0;
+}
+
+const char *get_system_type(void)
+{
+	return "Toshiba RBTX4927/RBTX4937";
+}
+
+char * __init prom_getcmdline(void)
+{
+        return &(arcs_cmdline[0]);
+}
+
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
new file mode 100644
index 000000000000..8724ea3ae04e
--- /dev/null
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
@@ -0,0 +1,1024 @@
+/*
+ * Toshiba rbtx4927 specific setup
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ * Copyright (C) 1996, 97, 2001, 04  Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2000 RidgeRun, Inc.
+ * Author: RidgeRun, Inc.
+ *   glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * Copyright 2002 MontaVista Software Inc.
+ * Author: Michael Pruznick, michael_pruznick@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * Copyright (C) 2004 MontaVista Software Inc.
+ * Author: Manish Lachwani, mlachwani@mvista.com
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/timex.h>
+#include <asm/bootinfo.h>
+#include <asm/page.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/processor.h>
+#include <asm/ptrace.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <linux/bootmem.h>
+#include <linux/blkdev.h>
+#ifdef CONFIG_RTC_DS1742
+#include <linux/ds1742rtc.h>
+#endif
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#include <asm/tx4927/smsc_fdc37m81x.h>
+#endif
+#include <asm/tx4927/toshiba_rbtx4927.h>
+#ifdef CONFIG_PCI
+#include <asm/tx4927/tx4927_pci.h>
+#endif
+#ifdef CONFIG_BLK_DEV_IDEPCI
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#endif
+
+#undef TOSHIBA_RBTX4927_SETUP_DEBUG
+
+#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
+#define TOSHIBA_RBTX4927_SETUP_NONE        0x00000000
+
+#define TOSHIBA_RBTX4927_SETUP_INFO        ( 1 <<  0 )
+#define TOSHIBA_RBTX4927_SETUP_WARN        ( 1 <<  1 )
+#define TOSHIBA_RBTX4927_SETUP_EROR        ( 1 <<  2 )
+
+#define TOSHIBA_RBTX4927_SETUP_EFWFU       ( 1 <<  3 )
+#define TOSHIBA_RBTX4927_SETUP_SETUP       ( 1 <<  4 )
+#define TOSHIBA_RBTX4927_SETUP_TIME_INIT   ( 1 <<  5 )
+#define TOSHIBA_RBTX4927_SETUP_TIMER_SETUP ( 1 <<  6 )
+#define TOSHIBA_RBTX4927_SETUP_PCIBIOS     ( 1 <<  7 )
+#define TOSHIBA_RBTX4927_SETUP_PCI1        ( 1 <<  8 )
+#define TOSHIBA_RBTX4927_SETUP_PCI2        ( 1 <<  9 )
+#define TOSHIBA_RBTX4927_SETUP_PCI66       ( 1 << 10 )
+
+#define TOSHIBA_RBTX4927_SETUP_ALL         0xffffffff
+#endif
+
+#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
+static const u32 toshiba_rbtx4927_setup_debug_flag =
+    (TOSHIBA_RBTX4927_SETUP_NONE | TOSHIBA_RBTX4927_SETUP_INFO |
+     TOSHIBA_RBTX4927_SETUP_WARN | TOSHIBA_RBTX4927_SETUP_EROR |
+     TOSHIBA_RBTX4927_SETUP_EFWFU | TOSHIBA_RBTX4927_SETUP_SETUP |
+     TOSHIBA_RBTX4927_SETUP_TIME_INIT | TOSHIBA_RBTX4927_SETUP_TIMER_SETUP
+     | TOSHIBA_RBTX4927_SETUP_PCIBIOS | TOSHIBA_RBTX4927_SETUP_PCI1 |
+     TOSHIBA_RBTX4927_SETUP_PCI2 | TOSHIBA_RBTX4927_SETUP_PCI66);
+#endif
+
+#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
+#define TOSHIBA_RBTX4927_SETUP_DPRINTK(flag,str...) \
+        if ( (toshiba_rbtx4927_setup_debug_flag) & (flag) ) \
+        { \
+           char tmp[100]; \
+           sprintf( tmp, str ); \
+           printk( "%s(%s:%u)::%s", __FUNCTION__, __FILE__, __LINE__, tmp ); \
+        }
+#else
+#define TOSHIBA_RBTX4927_SETUP_DPRINTK(flag,str...)
+#endif
+
+/* These functions are used for rebooting or halting the machine*/
+extern void toshiba_rbtx4927_restart(char *command);
+extern void toshiba_rbtx4927_halt(void);
+extern void toshiba_rbtx4927_power_off(void);
+
+int tx4927_using_backplane = 0;
+
+extern void gt64120_time_init(void);
+extern void toshiba_rbtx4927_irq_setup(void);
+
+#ifdef CONFIG_PCI
+#define CONFIG_TX4927BUG_WORKAROUND
+#undef TX4927_SUPPORT_COMMAND_IO
+#undef  TX4927_SUPPORT_PCI_66
+int tx4927_cpu_clock = 100000000;	/* 100MHz */
+unsigned long mips_pci_io_base;
+unsigned long mips_pci_io_size;
+unsigned long mips_pci_mem_base;
+unsigned long mips_pci_mem_size;
+/* for legacy I/O, PCI I/O PCI Bus address must be 0 */
+unsigned long mips_pci_io_pciaddr = 0;
+unsigned long mips_memory_upper;
+static int tx4927_ccfg_toeon = 1;
+static int tx4927_pcic_trdyto = 0;	/* default: disabled */
+unsigned long tx4927_ce_base[8];
+void tx4927_pci_setup(void);
+void tx4927_reset_pci_pcic(void);
+int tx4927_pci66 = 0;		/* 0:auto */
+#endif
+
+char *toshiba_name = "";
+
+#ifdef CONFIG_PCI
+static void tx4927_pcierr_interrupt(int irq, void *dev_id,
+				    struct pt_regs *regs)
+{
+#ifdef CONFIG_BLK_DEV_IDEPCI
+	/* ignore MasterAbort for ide probing... */
+	if (irq == TX4927_IRQ_IRC_PCIERR &&
+	    ((tx4927_pcicptr->pcistatus >> 16) & 0xf900) ==
+	    PCI_STATUS_REC_MASTER_ABORT) {
+		tx4927_pcicptr->pcistatus =
+		    (tx4927_pcicptr->
+		     pcistatus & 0x0000ffff) | (PCI_STATUS_REC_MASTER_ABORT
+						<< 16);
+
+		return;
+	}
+#endif
+	printk("PCI error interrupt (irq 0x%x).\n", irq);
+
+	printk("pcistat:%04x, g2pstatus:%08lx, pcicstatus:%08lx\n",
+	       (unsigned short) (tx4927_pcicptr->pcistatus >> 16),
+	       tx4927_pcicptr->g2pstatus, tx4927_pcicptr->pcicstatus);
+	printk("ccfg:%08lx, tear:%02lx_%08lx\n",
+	       (unsigned long) tx4927_ccfgptr->ccfg,
+	       (unsigned long) (tx4927_ccfgptr->tear >> 32),
+	       (unsigned long) tx4927_ccfgptr->tear);
+	show_regs(regs);
+}
+
+void __init toshiba_rbtx4927_pci_irq_init(void)
+{
+	return;
+}
+
+void tx4927_reset_pci_pcic(void)
+{
+	/* Reset PCI Bus */
+	*tx4927_pcireset_ptr = 1;
+	/* Reset PCIC */
+	tx4927_ccfgptr->clkctr |= TX4927_CLKCTR_PCIRST;
+	udelay(10000);
+	/* clear PCIC reset */
+	tx4927_ccfgptr->clkctr &= ~TX4927_CLKCTR_PCIRST;
+	*tx4927_pcireset_ptr = 0;
+}
+#endif /* CONFIG_PCI */
+
+#ifdef CONFIG_PCI
+void print_pci_status(void)
+{
+	printk("PCI STATUS %lx\n", tx4927_pcicptr->pcistatus);
+	printk("PCIC STATUS %lx\n", tx4927_pcicptr->pcicstatus);
+}
+
+extern struct pci_controller tx4927_controller;
+
+static struct pci_dev *fake_pci_dev(struct pci_controller *hose,
+				    int top_bus, int busnr, int devfn)
+{
+	static struct pci_dev dev;
+	static struct pci_bus bus;
+
+	dev.sysdata = (void *)hose;
+	dev.devfn = devfn;
+	bus.number = busnr;
+	bus.ops = hose->pci_ops;
+	bus.parent = NULL;
+	dev.bus = &bus;
+
+	return &dev;
+}
+
+#define EARLY_PCI_OP(rw, size, type)                                    \
+static int early_##rw##_config_##size(struct pci_controller *hose,      \
+        int top_bus, int bus, int devfn, int offset, type value)        \
+{                                                                       \
+        return pci_##rw##_config_##size(                                \
+                fake_pci_dev(hose, top_bus, bus, devfn),                \
+                offset, value);                                         \
+}
+
+EARLY_PCI_OP(read, byte, u8 *)
+EARLY_PCI_OP(read, word, u16 *)
+EARLY_PCI_OP(read, dword, u32 *)
+EARLY_PCI_OP(write, byte, u8)
+EARLY_PCI_OP(write, word, u16)
+EARLY_PCI_OP(write, dword, u32)
+
+static int __init tx4927_pcibios_init(void)
+{
+	unsigned int id;
+	u32 pci_devfn;
+	int devfn_start = 0;
+	int devfn_stop = 0xff;
+	int busno = 0; /* One bus on the Toshiba */
+	struct pci_controller *hose = &tx4927_controller;
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+				       "-\n");
+
+	for (pci_devfn = devfn_start; pci_devfn < devfn_stop; pci_devfn++) {
+		early_read_config_dword(hose, busno, busno, pci_devfn,
+					PCI_VENDOR_ID, &id);
+
+		if (id == 0xffffffff) {
+			continue;
+		}
+
+		if (id == 0x94601055) {
+			u8 v08_64;
+			u32 v32_b0;
+			u8 v08_e1;
+			char *s = " sb/isa --";
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s beg\n",
+			     s);
+
+			early_read_config_byte(hose, busno, busno,
+					       pci_devfn, 0x64, &v08_64);
+			early_read_config_dword(hose, busno, busno,
+						pci_devfn, 0xb0, &v32_b0);
+			early_read_config_byte(hose, busno, busno,
+					       pci_devfn, 0xe1, &v08_e1);
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s beg 0x64 = 0x%02x\n", s, v08_64);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s beg 0xb0 = 0x%02x\n", s, v32_b0);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s beg 0xe1 = 0x%02x\n", s, v08_e1);
+
+			/* serial irq control */
+			v08_64 = 0xd0;
+
+			/* serial irq pin */
+			v32_b0 |= 0x00010000;
+
+			/* ide irq on isa14 */
+			v08_e1 &= 0xf0;
+			v08_e1 |= 0x0d;
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s mid 0x64 = 0x%02x\n", s, v08_64);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s mid 0xb0 = 0x%02x\n", s, v32_b0);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s mid 0xe1 = 0x%02x\n", s, v08_e1);
+
+			early_write_config_byte(hose, busno, busno,
+						pci_devfn, 0x64, v08_64);
+			early_write_config_dword(hose, busno, busno,
+						 pci_devfn, 0xb0, v32_b0);
+			early_write_config_byte(hose, busno, busno,
+						pci_devfn, 0xe1, v08_e1);
+
+#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
+			{
+				early_read_config_byte(hose, busno, busno,
+						       pci_devfn, 0x64,
+						       &v08_64);
+				early_read_config_dword(hose, busno, busno,
+							pci_devfn, 0xb0,
+							&v32_b0);
+				early_read_config_byte(hose, busno, busno,
+						       pci_devfn, 0xe1,
+						       &v08_e1);
+
+				TOSHIBA_RBTX4927_SETUP_DPRINTK
+				    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+				     ":%s end 0x64 = 0x%02x\n", s, v08_64);
+				TOSHIBA_RBTX4927_SETUP_DPRINTK
+				    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+				     ":%s end 0xb0 = 0x%02x\n", s, v32_b0);
+				TOSHIBA_RBTX4927_SETUP_DPRINTK
+				    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+				     ":%s end 0xe1 = 0x%02x\n", s, v08_e1);
+			}
+#endif
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s end\n",
+			     s);
+		}
+
+		if (id == 0x91301055) {
+			u8 v08_04;
+			u8 v08_09;
+			u8 v08_41;
+			u8 v08_43;
+			u8 v08_5c;
+			char *s = " sb/ide --";
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s beg\n",
+			     s);
+
+			early_read_config_byte(hose, busno, busno,
+					       pci_devfn, 0x04, &v08_04);
+			early_read_config_byte(hose, busno, busno,
+					       pci_devfn, 0x09, &v08_09);
+			early_read_config_byte(hose, busno, busno,
+					       pci_devfn, 0x41, &v08_41);
+			early_read_config_byte(hose, busno, busno,
+					       pci_devfn, 0x43, &v08_43);
+			early_read_config_byte(hose, busno, busno,
+					       pci_devfn, 0x5c, &v08_5c);
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s beg 0x04 = 0x%02x\n", s, v08_04);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s beg 0x09 = 0x%02x\n", s, v08_09);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s beg 0x41 = 0x%02x\n", s, v08_41);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s beg 0x43 = 0x%02x\n", s, v08_43);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s beg 0x5c = 0x%02x\n", s, v08_5c);
+
+			/* enable ide master/io */
+			v08_04 |= (PCI_COMMAND_MASTER | PCI_COMMAND_IO);
+
+			/* enable ide native mode */
+			v08_09 |= 0x05;
+
+			/* enable primary ide */
+			v08_41 |= 0x80;
+
+			/* enable secondary ide */
+			v08_43 |= 0x80;
+
+			/* 
+			 * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+			 *
+			 * This line of code is intended to provide the user with a work
+			 * around solution to the anomalies cited in SMSC's anomaly sheet
+			 * entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
+			 *
+			 * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+			 */
+			v08_5c |= 0x01;
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s mid 0x04 = 0x%02x\n", s, v08_04);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s mid 0x09 = 0x%02x\n", s, v08_09);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s mid 0x41 = 0x%02x\n", s, v08_41);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s mid 0x43 = 0x%02x\n", s, v08_43);
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+			     ":%s mid 0x5c = 0x%02x\n", s, v08_5c);
+
+			early_write_config_byte(hose, busno, busno,
+						pci_devfn, 0x5c, v08_5c);
+			early_write_config_byte(hose, busno, busno,
+						pci_devfn, 0x04, v08_04);
+			early_write_config_byte(hose, busno, busno,
+						pci_devfn, 0x09, v08_09);
+			early_write_config_byte(hose, busno, busno,
+						pci_devfn, 0x41, v08_41);
+			early_write_config_byte(hose, busno, busno,
+						pci_devfn, 0x43, v08_43);
+
+#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
+			{
+				early_read_config_byte(hose, busno, busno,
+						       pci_devfn, 0x04,
+						       &v08_04);
+				early_read_config_byte(hose, busno, busno,
+						       pci_devfn, 0x09,
+						       &v08_09);
+				early_read_config_byte(hose, busno, busno,
+						       pci_devfn, 0x41,
+						       &v08_41);
+				early_read_config_byte(hose, busno, busno,
+						       pci_devfn, 0x43,
+						       &v08_43);
+				early_read_config_byte(hose, busno, busno,
+						       pci_devfn, 0x5c,
+						       &v08_5c);
+
+				TOSHIBA_RBTX4927_SETUP_DPRINTK
+				    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+				     ":%s end 0x04 = 0x%02x\n", s, v08_04);
+				TOSHIBA_RBTX4927_SETUP_DPRINTK
+				    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+				     ":%s end 0x09 = 0x%02x\n", s, v08_09);
+				TOSHIBA_RBTX4927_SETUP_DPRINTK
+				    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+				     ":%s end 0x41 = 0x%02x\n", s, v08_41);
+				TOSHIBA_RBTX4927_SETUP_DPRINTK
+				    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+				     ":%s end 0x43 = 0x%02x\n", s, v08_43);
+				TOSHIBA_RBTX4927_SETUP_DPRINTK
+				    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+				     ":%s end 0x5c = 0x%02x\n", s, v08_5c);
+			}
+#endif
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s end\n",
+			     s);
+		}
+
+	}
+
+	register_pci_controller(&tx4927_controller);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
+				       "+\n");
+
+	return 0;
+}
+
+arch_initcall(tx4927_pcibios_init);
+
+extern struct resource pci_io_resource;
+extern struct resource pci_mem_resource;
+
+void tx4927_pci_setup(void)
+{
+	static int called = 0;
+	extern unsigned int tx4927_get_mem_size(void);
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, "-\n");
+
+	mips_memory_upper = tx4927_get_mem_size() << 20;
+	mips_memory_upper += KSEG0;
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "0x%08lx=mips_memory_upper\n",
+				       mips_memory_upper);
+	mips_pci_io_base = TX4927_PCIIO;
+	mips_pci_io_size = TX4927_PCIIO_SIZE;
+	mips_pci_mem_base = TX4927_PCIMEM;
+	mips_pci_mem_size = TX4927_PCIMEM_SIZE;
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "0x%08lx=mips_pci_io_base\n",
+				       mips_pci_io_base);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "0x%08lx=mips_pci_io_size\n",
+				       mips_pci_io_size);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "0x%08lx=mips_pci_mem_base\n",
+				       mips_pci_mem_base);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "0x%08lx=mips_pci_mem_size\n",
+				       mips_pci_mem_size);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "0x%08lx=pci_io_resource.start\n",
+				       pci_io_resource.start);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "0x%08lx=pci_io_resource.end\n",
+				       pci_io_resource.end);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "0x%08lx=pci_mem_resource.start\n",
+				       pci_mem_resource.start);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "0x%08lx=pci_mem_resource.end\n",
+				       pci_mem_resource.end);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "0x%08lx=mips_io_port_base",
+				       mips_io_port_base);
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "setup pci_io_resource  to 0x%08lx 0x%08lx\n",
+				       pci_io_resource.start,
+				       pci_io_resource.end);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       "setup pci_mem_resource to 0x%08lx 0x%08lx\n",
+				       pci_mem_resource.start,
+				       pci_mem_resource.end);
+
+	if (!called) {
+		printk
+		    ("TX4927 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
+		     (unsigned short) (tx4927_pcicptr->pciid >> 16),
+		     (unsigned short) (tx4927_pcicptr->pciid & 0xffff),
+		     (unsigned short) (tx4927_pcicptr->pciccrev & 0xff),
+		     (!(tx4927_ccfgptr->
+			ccfg & TX4927_CCFG_PCIXARB)) ? "External" :
+		     "Internal");
+		called = 1;
+	}
+	printk("%s PCIC --%s PCICLK:",toshiba_name,
+	       (tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66) ? " PCI66" : "");
+	if (tx4927_ccfgptr->pcfg & TX4927_PCFG_PCICLKEN_ALL) {
+		int pciclk = 0;
+		switch ((unsigned long) tx4927_ccfgptr->
+			ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
+		case TX4927_CCFG_PCIDIVMODE_2_5:
+			pciclk = tx4927_cpu_clock * 2 / 5;
+			break;
+		case TX4927_CCFG_PCIDIVMODE_3:
+			pciclk = tx4927_cpu_clock / 3;
+			break;
+		case TX4927_CCFG_PCIDIVMODE_5:
+			pciclk = tx4927_cpu_clock / 5;
+			break;
+		case TX4927_CCFG_PCIDIVMODE_6:
+			pciclk = tx4927_cpu_clock / 6;
+			break;
+		}
+		printk("Internal(%dMHz)", pciclk / 1000000);
+	} else {
+		int pciclk = 0;
+		int pciclk_setting = *tx4927_pci_clk_ptr;
+		switch (pciclk_setting & TX4927_PCI_CLK_MASK) {
+		case TX4927_PCI_CLK_33:
+			pciclk = 33333333;
+			break;
+		case TX4927_PCI_CLK_25:
+			pciclk = 25000000;
+			break;
+		case TX4927_PCI_CLK_66:
+			pciclk = 66666666;
+			break;
+		case TX4927_PCI_CLK_50:
+			pciclk = 50000000;
+			break;
+		}
+		printk("External(%dMHz)", pciclk / 1000000);
+	}
+	printk("\n");
+
+
+
+	/* GB->PCI mappings */
+	tx4927_pcicptr->g2piomask = (mips_pci_io_size - 1) >> 4;
+	tx4927_pcicptr->g2piogbase = mips_pci_io_base |
+#ifdef __BIG_ENDIAN
+	    TX4927_PCIC_G2PIOGBASE_ECHG
+#else
+	    TX4927_PCIC_G2PIOGBASE_BSDIS
+#endif
+	    ;
+
+	tx4927_pcicptr->g2piopbase = 0;
+
+	tx4927_pcicptr->g2pmmask[0] = (mips_pci_mem_size - 1) >> 4;
+	tx4927_pcicptr->g2pmgbase[0] = mips_pci_mem_base |
+#ifdef __BIG_ENDIAN
+	    TX4927_PCIC_G2PMnGBASE_ECHG
+#else
+	    TX4927_PCIC_G2PMnGBASE_BSDIS
+#endif
+	    ;
+	tx4927_pcicptr->g2pmpbase[0] = mips_pci_mem_base;
+
+	tx4927_pcicptr->g2pmmask[1] = 0;
+	tx4927_pcicptr->g2pmgbase[1] = 0;
+	tx4927_pcicptr->g2pmpbase[1] = 0;
+	tx4927_pcicptr->g2pmmask[2] = 0;
+	tx4927_pcicptr->g2pmgbase[2] = 0;
+	tx4927_pcicptr->g2pmpbase[2] = 0;
+
+
+	/* PCI->GB mappings (I/O 256B) */
+	tx4927_pcicptr->p2giopbase = 0;	/* 256B */
+
+	/* PCI->GB mappings (MEM 512MB) M0 gets all of memory */
+	tx4927_pcicptr->p2gm0plbase = 0;
+	tx4927_pcicptr->p2gm0pubase = 0;
+	tx4927_pcicptr->p2gmgbase[0] = 0 | TX4927_PCIC_P2GMnGBASE_TMEMEN |
+#ifdef __BIG_ENDIAN
+	    TX4927_PCIC_P2GMnGBASE_TECHG
+#else
+	    TX4927_PCIC_P2GMnGBASE_TBSDIS
+#endif
+	    ;
+
+	/* PCI->GB mappings (MEM 16MB) -not used */
+	tx4927_pcicptr->p2gm1plbase = 0xffffffff;
+#ifdef CONFIG_TX4927BUG_WORKAROUND
+	/*
+	 * TX4927-PCIC-BUG: P2GM1PUBASE must be 0
+	 * if P2GM0PUBASE was 0.
+	 */
+	tx4927_pcicptr->p2gm1pubase = 0;
+#else
+	tx4927_pcicptr->p2gm1pubase = 0xffffffff;
+#endif
+	tx4927_pcicptr->p2gmgbase[1] = 0;
+
+	/* PCI->GB mappings (MEM 1MB) -not used */
+	tx4927_pcicptr->p2gm2pbase = 0xffffffff;
+	tx4927_pcicptr->p2gmgbase[2] = 0;
+
+
+	/* Enable Initiator Memory 0 Space, I/O Space, Config */
+	tx4927_pcicptr->pciccfg &= TX4927_PCIC_PCICCFG_LBWC_MASK;
+	tx4927_pcicptr->pciccfg |=
+	    TX4927_PCIC_PCICCFG_IMSE0 | TX4927_PCIC_PCICCFG_IISE |
+	    TX4927_PCIC_PCICCFG_ICAE | TX4927_PCIC_PCICCFG_ATR;
+
+
+	/* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
+	tx4927_pcicptr->pcicfg1 = 0;
+
+	if (tx4927_pcic_trdyto >= 0) {
+		tx4927_pcicptr->g2ptocnt &= ~0xff;
+		tx4927_pcicptr->g2ptocnt |= (tx4927_pcic_trdyto & 0xff);
+	}
+
+	/* Clear All Local Bus Status */
+	tx4927_pcicptr->pcicstatus = TX4927_PCIC_PCICSTATUS_ALL;
+	/* Enable All Local Bus Interrupts */
+	tx4927_pcicptr->pcicmask = TX4927_PCIC_PCICSTATUS_ALL;
+	/* Clear All Initiator Status */
+	tx4927_pcicptr->g2pstatus = TX4927_PCIC_G2PSTATUS_ALL;
+	/* Enable All Initiator Interrupts */
+	tx4927_pcicptr->g2pmask = TX4927_PCIC_G2PSTATUS_ALL;
+	/* Clear All PCI Status Error */
+	tx4927_pcicptr->pcistatus =
+	    (tx4927_pcicptr->pcistatus & 0x0000ffff) |
+	    (TX4927_PCIC_PCISTATUS_ALL << 16);
+	/* Enable All PCI Status Error Interrupts */
+	tx4927_pcicptr->pcimask = TX4927_PCIC_PCISTATUS_ALL;
+
+	/* PCIC Int => IRC IRQ16 */
+	tx4927_pcicptr->pcicfg2 =
+	    (tx4927_pcicptr->pcicfg2 & 0xffffff00) | TX4927_IR_PCIC;
+
+	if (!(tx4927_ccfgptr->ccfg & TX4927_CCFG_PCIXARB)) {
+		/* XXX */
+	} else {
+		/* Reset Bus Arbiter */
+		tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_RPBA;
+		/* Enable Bus Arbiter */
+		tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_PBAEN;
+	}
+
+	tx4927_pcicptr->pcistatus = PCI_COMMAND_MASTER |
+	    PCI_COMMAND_MEMORY |
+	    PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
+				       ":pci setup complete:\n");
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, "+\n");
+}
+
+#endif /* CONFIG_PCI */
+
+void toshiba_rbtx4927_restart(char *command)
+{
+	printk(KERN_NOTICE "System Rebooting...\n");
+
+	/* enable the s/w reset register */
+	reg_wr08(RBTX4927_SW_RESET_ENABLE, RBTX4927_SW_RESET_ENABLE_SET);
+
+	/* wait for enable to be seen */
+	while ((reg_rd08(RBTX4927_SW_RESET_ENABLE) &
+		RBTX4927_SW_RESET_ENABLE_SET) == 0x00);
+
+	/* do a s/w reset */
+	reg_wr08(RBTX4927_SW_RESET_DO, RBTX4927_SW_RESET_DO_SET);
+
+	/* do something passive while waiting for reset */
+	local_irq_disable();
+	while (1)
+		asm_wait();
+
+	/* no return */
+}
+
+
+void toshiba_rbtx4927_halt(void)
+{
+	printk(KERN_NOTICE "System Halted\n");
+	local_irq_disable();
+	while (1) {
+		asm_wait();
+	}
+	/* no return */
+}
+
+void toshiba_rbtx4927_power_off(void)
+{
+	toshiba_rbtx4927_halt();
+	/* no return */
+}
+
+void __init toshiba_rbtx4927_setup(void)
+{
+	vu32 cp0_config;
+	char *argptr;
+
+	printk("CPU is %s\n", toshiba_name);
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
+				       "-\n");
+
+	/* f/w leaves this on at startup */
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
+				       ":Clearing STO_ERL.\n");
+	clear_c0_status(ST0_ERL);
+
+	/* enable caches -- HCP5 does this, pmon does not */
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
+				       ":Enabling TX49_CONF_IC,TX49_CONF_DC.\n");
+	cp0_config = read_c0_config();
+	cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
+	write_c0_config(cp0_config);
+
+#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
+	{
+		extern void dump_cp0(char *);
+		dump_cp0("toshiba_rbtx4927_early_fw_fixup");
+	}
+#endif
+
+	/* setup irq stuff */
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
+				       ":Setting up tx4927 pic.\n");
+	TX4927_WR(0xff1ff604, 0x00000400);	/* irq trigger */
+	TX4927_WR(0xff1ff608, 0x00000000);	/* irq trigger */
+
+	/* setup serial stuff */
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
+				       ":Setting up tx4927 sio.\n");
+	TX4927_WR(0xff1ff314, 0x00000000);	/* h/w flow control off */
+	TX4927_WR(0xff1ff414, 0x00000000);	/* h/w flow control off */
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
+				       "+\n");
+
+	set_io_port_base(KSEG1 + TBTX4927_ISA_IO_OFFSET);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
+				       ":mips_io_port_base=0x%08lx\n",
+				       mips_io_port_base);
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
+				       ":Resource\n");
+	ioport_resource.end = 0xffffffff;
+	iomem_resource.end = 0xffffffff;
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
+				       ":ResetRoutines\n");
+	_machine_restart = toshiba_rbtx4927_restart;
+	_machine_halt = toshiba_rbtx4927_halt;
+	_machine_power_off = toshiba_rbtx4927_power_off;
+
+#ifdef CONFIG_PCI
+
+	/* PCIC */
+	/*
+	   * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
+	   * PCIDIVMODE[12:11]'s initial value are given by S9[4:3] (ON:0, OFF:1).
+	   * CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5)
+	   * CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3)
+	   * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5)
+	   * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6)
+	   * i.e. S9[3]: ON (83MHz), OFF (100MHz)
+	 */
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
+				       "ccfg is %lx, DIV is %x\n",
+				       (unsigned long) tx4927_ccfgptr->
+				       ccfg, TX4927_CCFG_PCIDIVMODE_MASK);
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
+				       "PCI66 mode is %lx, PCI mode is %lx, pci arb is %lx\n",
+				       (unsigned long) tx4927_ccfgptr->
+				       ccfg & TX4927_CCFG_PCI66,
+				       (unsigned long) tx4927_ccfgptr->
+				       ccfg & TX4927_CCFG_PCIMIDE,
+				       (unsigned long) tx4927_ccfgptr->
+				       ccfg & TX4927_CCFG_PCIXARB);
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
+				       "PCIDIVMODE is %lx\n",
+				       (unsigned long) tx4927_ccfgptr->
+				       ccfg & TX4927_CCFG_PCIDIVMODE_MASK);
+
+	switch ((unsigned long) tx4927_ccfgptr->
+		ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
+	case TX4927_CCFG_PCIDIVMODE_2_5:
+	case TX4927_CCFG_PCIDIVMODE_5:
+		tx4927_cpu_clock = 166000000;	/* 166MHz */
+		break;
+	default:
+		tx4927_cpu_clock = 200000000;	/* 200MHz */
+	}
+
+	/* CCFG */
+	/* enable Timeout BusError */
+	if (tx4927_ccfg_toeon)
+		tx4927_ccfgptr->ccfg |= TX4927_CCFG_TOE;
+
+	/* SDRAMC fixup */
+#ifdef CONFIG_TX4927BUG_WORKAROUND
+	/*
+	 * TX4927-BUG: INF 01-01-18/ BUG 01-01-22
+	 * G-bus timeout error detection is incorrect
+	 */
+	if (tx4927_ccfg_toeon)
+		tx4927_sdramcptr->tr |= 0x02000000;	/* RCD:3tck */
+#endif
+
+	tx4927_pci_setup();
+	if (tx4927_using_backplane == 1)
+		printk("backplane board IS installed\n");
+	else
+		printk("No Backplane \n");
+
+	/* this is on ISA bus behind PCI bus, so need PCI up first */
+#ifdef CONFIG_TOSHIBA_FPCIB0
+	{
+		if (tx4927_using_backplane) {
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_SETUP,
+			     ":fpcibo=yes\n");
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_SETUP,
+			     ":smsc_fdc37m81x_init()\n");
+			smsc_fdc37m81x_init(0x3f0);
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_SETUP,
+			     ":smsc_fdc37m81x_config_beg()\n");
+			smsc_fdc37m81x_config_beg();
+
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_SETUP,
+			     ":smsc_fdc37m81x_config_set(KBD)\n");
+			smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
+						  SMSC_FDC37M81X_KBD);
+			smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
+			smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
+			smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
+						  1);
+
+			smsc_fdc37m81x_config_end();
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_SETUP,
+			     ":smsc_fdc37m81x_config_end()\n");
+		} else {
+			TOSHIBA_RBTX4927_SETUP_DPRINTK
+			    (TOSHIBA_RBTX4927_SETUP_SETUP,
+			     ":fpcibo=not_found\n");
+		}
+	}
+#else
+	{
+		TOSHIBA_RBTX4927_SETUP_DPRINTK
+		    (TOSHIBA_RBTX4927_SETUP_SETUP, ":fpcibo=no\n");
+	}
+#endif
+
+#endif /* CONFIG_PCI */
+
+#ifdef CONFIG_SERIAL_TXX9_CONSOLE
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "console=") == NULL) {
+                strcat(argptr, " console=ttyS0,38400");
+        }
+#endif
+
+#ifdef CONFIG_ROOT_NFS
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "root=") == NULL) {
+                strcat(argptr, " root=/dev/nfs rw");
+        }
+#endif
+
+
+#ifdef CONFIG_IP_PNP
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "ip=") == NULL) {
+                strcat(argptr, " ip=any");
+        }
+#endif
+
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
+			       "+\n");
+}
+
+#ifdef CONFIG_RTC_DS1742
+extern unsigned long rtc_ds1742_get_time(void);
+extern int rtc_ds1742_set_time(unsigned long);
+extern void rtc_ds1742_wait(void);
+#endif
+
+void __init
+toshiba_rbtx4927_time_init(void)
+{
+	u32 c1;
+	u32 c2;
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "-\n");
+
+#ifdef CONFIG_RTC_DS1742
+
+	rtc_get_time = rtc_ds1742_get_time;
+	rtc_set_time = rtc_ds1742_set_time;
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
+				       ":rtc_ds1742_init()-\n");
+	rtc_ds1742_init(0xbc010000);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
+				       ":rtc_ds1742_init()+\n");
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
+				       ":Calibrate mips_hpt_frequency-\n");
+	rtc_ds1742_wait();
+
+	/* get the count */
+	c1 = read_c0_count();
+
+	/* wait for the seconds to change again */
+	rtc_ds1742_wait();
+
+	/* get the count again */
+	c2 = read_c0_count();
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
+				       ":Calibrate mips_hpt_frequency+\n");
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
+				       ":c1=%12u\n", c1);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
+				       ":c2=%12u\n", c2);
+
+	/* this diff is as close as we are going to get to counter ticks per sec */
+	mips_hpt_frequency = abs(c2 - c1);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
+				       ":f1=%12u\n", mips_hpt_frequency);
+
+	/* round to 1/10th of a MHz */
+	mips_hpt_frequency /= (100 * 1000);
+	mips_hpt_frequency *= (100 * 1000);
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
+				       ":f2=%12u\n", mips_hpt_frequency);
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_INFO,
+				       ":mips_hpt_frequency=%uHz (%uMHz)\n",
+				       mips_hpt_frequency,
+				       mips_hpt_frequency / 1000000);
+#else
+	mips_hpt_frequency = 100000000;
+#endif
+
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "+\n");
+
+}
+
+void __init toshiba_rbtx4927_timer_setup(struct irqaction *irq)
+{
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIMER_SETUP,
+				       "-\n");
+	TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIMER_SETUP,
+				       "+\n");
+}