Philips PNX8550 support: MIPS32-like core with 2 Trimedias on it.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

11 files changed, 901 insertions, 1 deletions

diff --git a/include/asm-mips/bootinfo.h b/include/asm-mips/bootinfo.h
index e5c03c525bda..3870a76efc3b 100644
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -137,6 +137,7 @@
 #define MACH_GROUP_PHILIPS     14
 #define  MACH_PHILIPS_NINO	0	/* Nino */
 #define  MACH_PHILIPS_VELO	1	/* Velo */
+#define  MACH_PHILIPS_JBS	2	/* JBS */
 
 /*
  * Valid machtype for group Globespan
diff --git a/include/asm-mips/cpu.h b/include/asm-mips/cpu.h
index 3bbb6431d218..ed92c0b14410 100644
--- a/include/asm-mips/cpu.h
+++ b/include/asm-mips/cpu.h
@@ -52,6 +52,7 @@
 #define PRID_IMP_VR41XX		0x0c00
 #define PRID_IMP_R12000		0x0e00
 #define PRID_IMP_R8000		0x1000
+#define PRID_IMP_PR4450		0x1200
 #define PRID_IMP_R4600		0x2000
 #define PRID_IMP_R4700		0x2100
 #define PRID_IMP_TX39		0x2200
@@ -187,7 +188,8 @@
 #define CPU_24K			58
 #define CPU_AU1200		59
 #define CPU_34K			60
-#define CPU_LAST		60
+#define CPU_PR4450		61
+#define CPU_LAST		61
 
 /*
  * ISA Level encodings
diff --git a/include/asm-mips/mach-pnx8550/cm.h b/include/asm-mips/mach-pnx8550/cm.h
new file mode 100644
index 000000000000..bb0a56c7d011
--- /dev/null
+++ b/include/asm-mips/mach-pnx8550/cm.h
@@ -0,0 +1,43 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *   Clock module specific definitions
+ *
+ * Author: source@mvista.com
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ */
+
+#ifndef __PNX8550_CM_H
+#define __PNX8550_CM_H
+
+#define PNX8550_CM_BASE	0xBBE47000
+
+#define PNX8550_CM_PLL0_CTL    *(volatile unsigned long *)(PNX8550_CM_BASE + 0x000)
+#define PNX8550_CM_PLL1_CTL    *(volatile unsigned long *)(PNX8550_CM_BASE + 0x004)
+#define PNX8550_CM_PLL2_CTL    *(volatile unsigned long *)(PNX8550_CM_BASE + 0x008)
+#define PNX8550_CM_PLL3_CTL    *(volatile unsigned long *)(PNX8550_CM_BASE + 0x00C)
+
+// Table not complete.....
+
+#define PNX8550_CM_PLL_BLOCKED_MASK     0x80000000
+#define PNX8550_CM_PLL_LOCK_MASK        0x40000000
+#define PNX8550_CM_PLL_CURRENT_ADJ_MASK 0x3c000000
+#define PNX8550_CM_PLL_N_MASK           0x01ff0000
+#define PNX8550_CM_PLL_M_MASK           0x00003f00
+#define PNX8550_CM_PLL_P_MASK           0x0000000c
+#define PNX8550_CM_PLL_PD_MASK          0x00000002
+
+
+#endif
diff --git a/include/asm-mips/mach-pnx8550/glb.h b/include/asm-mips/mach-pnx8550/glb.h
new file mode 100644
index 000000000000..07aa85e609bc
--- /dev/null
+++ b/include/asm-mips/mach-pnx8550/glb.h
@@ -0,0 +1,86 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *   PNX8550 global definitions
+ *
+ * Author: source@mvista.com
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ */
+
+#ifndef __PNX8550_GLB_H
+#define __PNX8550_GLB_H
+
+#define PNX8550_GLB1_BASE	0xBBE63000
+#define PNX8550_GLB2_BASE	0xBBE4d000
+#define PNX8550_RESET_BASE      0xBBE60000
+
+/* PCI Inta Output Enable Registers */
+#define PNX8550_GLB2_ENAB_INTA_O	*(volatile unsigned long *)(PNX8550_GLB2_BASE + 0x050)
+
+/* Bit 1:Enable DAC Powerdown
+     0:DACs are enabled and are working normally
+     1:DACs are powerdown
+*/
+#define PNX8550_GLB_DAC_PD      0x2
+/*   Bit 0:Enable of PCI inta output
+     0 = Disable PCI inta output
+     1 = Enable PCI inta output
+*/
+#define PNX8550_GLB_ENABLE_INTA_O 0x1
+
+/* PCI Direct Mappings */
+#define PNX8550_PCIMEM	        0x12000000
+#define PNX8550_PCIMEM_SIZE	0x08000000
+#define PNX8550_PCIIO	        0x1c000000
+#define PNX8550_PCIIO_SIZE	0x02000000	/* 32M */
+
+#define PNX8550_PORT_BASE	KSEG1
+
+// GPIO def
+#define PNX8550_GPIO_BASE	0x1Be00000
+
+#define PNX8550_GPIO_DIRQ0	 (PNX8550_GPIO_BASE + 0x104500)
+#define PNX8550_GPIO_MC1         (PNX8550_GPIO_BASE + 0x104004)
+#define PNX8550_GPIO_MC_31_BIT   30
+#define PNX8550_GPIO_MC_30_BIT   28
+#define PNX8550_GPIO_MC_29_BIT   26
+#define PNX8550_GPIO_MC_28_BIT   24
+#define PNX8550_GPIO_MC_27_BIT   22
+#define PNX8550_GPIO_MC_26_BIT   20
+#define PNX8550_GPIO_MC_25_BIT   18
+#define PNX8550_GPIO_MC_24_BIT   16
+#define PNX8550_GPIO_MC_23_BIT   14
+#define PNX8550_GPIO_MC_22_BIT   12
+#define PNX8550_GPIO_MC_21_BIT   10
+#define PNX8550_GPIO_MC_20_BIT   8
+#define PNX8550_GPIO_MC_19_BIT   6
+#define PNX8550_GPIO_MC_18_BIT   4
+#define PNX8550_GPIO_MC_17_BIT   2
+#define PNX8550_GPIO_MC_16_BIT   0
+
+#define PNX8550_GPIO_MODE_PRIMOP    0x1
+#define PNX8550_GPIO_MODE_NO_OPENDR 0x2
+#define PNX8550_GPIO_MODE_OPENDR    0x3
+
+// RESET module
+#define PNX8550_RST_CTL             *(volatile unsigned long *)(PNX8550_RESET_BASE + 0x0)
+#define PNX8550_RST_CAUSE           *(volatile unsigned long *)(PNX8550_RESET_BASE + 0x4)
+#define PNX8550_RST_EN_WATCHDOG     *(volatile unsigned long *)(PNX8550_RESET_BASE + 0x8)
+
+#define PNX8550_RST_REL_MIPS_RST_N     0x8
+#define PNX8550_RST_DO_SW_RST          0x4
+#define PNX8550_RST_REL_SYS_RST_OUT    0x2
+#define PNX8550_RST_ASSERT_SYS_RST_OUT 0x1
+#endif
diff --git a/include/asm-mips/mach-pnx8550/int.h b/include/asm-mips/mach-pnx8550/int.h
new file mode 100644
index 000000000000..0e0668b524f4
--- /dev/null
+++ b/include/asm-mips/mach-pnx8550/int.h
@@ -0,0 +1,140 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *   Interrupt specific definitions
+ *
+ * Author: source@mvista.com
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ */
+
+#ifndef __PNX8550_INT_H
+#define __PNX8550_INT_H
+
+#define PNX8550_GIC_BASE	0xBBE3E000
+
+#define PNX8550_GIC_PRIMASK_0	*(volatile unsigned long *)(PNX8550_GIC_BASE + 0x000)
+#define PNX8550_GIC_PRIMASK_1	*(volatile unsigned long *)(PNX8550_GIC_BASE + 0x004)
+#define PNX8550_GIC_VECTOR_0	*(volatile unsigned long *)(PNX8550_GIC_BASE + 0x100)
+#define PNX8550_GIC_VECTOR_1	*(volatile unsigned long *)(PNX8550_GIC_BASE + 0x104)
+#define PNX8550_GIC_PEND_1_31	*(volatile unsigned long *)(PNX8550_GIC_BASE + 0x200)
+#define PNX8550_GIC_PEND_32_63	*(volatile unsigned long *)(PNX8550_GIC_BASE + 0x204)
+#define PNX8550_GIC_PEND_64_70	*(volatile unsigned long *)(PNX8550_GIC_BASE + 0x208)
+#define PNX8550_GIC_FEATURES	*(volatile unsigned long *)(PNX8550_GIC_BASE + 0x300)
+#define PNX8550_GIC_REQ(x)	*(volatile unsigned long *)(PNX8550_GIC_BASE + 0x400 + (x)*4)
+#define PNX8550_GIC_MOD_ID	*(volatile unsigned long *)(PNX8550_GIC_BASE + 0xFFC)
+
+// cp0 is two software + six hw exceptions
+#define PNX8550_INT_CP0_TOTINT	8
+#define PNX8550_INT_CP0_MIN	0
+#define PNX8550_INT_CP0_MAX	(PNX8550_INT_CP0_MIN + PNX8550_INT_CP0_TOTINT - 1)
+
+#define MIPS_CPU_GIC_IRQ        2
+#define MIPS_CPU_TIMER_IRQ      7
+
+// GIC are 71 exceptions connected to cp0's first hardware exception
+#define PNX8550_INT_GIC_TOTINT	71
+#define PNX8550_INT_GIC_MIN	(PNX8550_INT_CP0_MAX+1)
+#define PNX8550_INT_GIC_MAX	(PNX8550_INT_GIC_MIN + PNX8550_INT_GIC_TOTINT - 1)
+
+#define PNX8550_INT_UNDEF              (PNX8550_INT_GIC_MIN+0)
+#define PNX8550_INT_IPC_TARGET0_MIPS   (PNX8550_INT_GIC_MIN+1)
+#define PNX8550_INT_IPC_TARGET1_TM32_1 (PNX8550_INT_GIC_MIN+2)
+#define PNX8550_INT_IPC_TARGET1_TM32_2 (PNX8550_INT_GIC_MIN+3)
+#define PNX8550_INT_RESERVED_4         (PNX8550_INT_GIC_MIN+4)
+#define PNX8550_INT_USB                (PNX8550_INT_GIC_MIN+5)
+#define PNX8550_INT_GPIO_EQ1           (PNX8550_INT_GIC_MIN+6)
+#define PNX8550_INT_GPIO_EQ2           (PNX8550_INT_GIC_MIN+7)
+#define PNX8550_INT_GPIO_EQ3           (PNX8550_INT_GIC_MIN+8)
+#define PNX8550_INT_GPIO_EQ4           (PNX8550_INT_GIC_MIN+9)
+
+#define PNX8550_INT_GPIO_EQ5           (PNX8550_INT_GIC_MIN+10)
+#define PNX8550_INT_GPIO_EQ6           (PNX8550_INT_GIC_MIN+11)
+#define PNX8550_INT_RESERVED_12        (PNX8550_INT_GIC_MIN+12)
+#define PNX8550_INT_QVCP1              (PNX8550_INT_GIC_MIN+13)
+#define PNX8550_INT_QVCP2              (PNX8550_INT_GIC_MIN+14)
+#define PNX8550_INT_I2C1               (PNX8550_INT_GIC_MIN+15)
+#define PNX8550_INT_I2C2               (PNX8550_INT_GIC_MIN+16)
+#define PNX8550_INT_ISO_UART1          (PNX8550_INT_GIC_MIN+17)
+#define PNX8550_INT_ISO_UART2          (PNX8550_INT_GIC_MIN+18)
+#define PNX8550_INT_UART1              (PNX8550_INT_GIC_MIN+19)
+
+#define PNX8550_INT_UART2              (PNX8550_INT_GIC_MIN+20)
+#define PNX8550_INT_QNTR               (PNX8550_INT_GIC_MIN+21)
+#define PNX8550_INT_RESERVED22         (PNX8550_INT_GIC_MIN+22)
+#define PNX8550_INT_T_DSC              (PNX8550_INT_GIC_MIN+23)
+#define PNX8550_INT_M_DSC              (PNX8550_INT_GIC_MIN+24)
+#define PNX8550_INT_RESERVED25         (PNX8550_INT_GIC_MIN+25)
+#define PNX8550_INT_2D_DRAW_ENG        (PNX8550_INT_GIC_MIN+26)
+#define PNX8550_INT_MEM_BASED_SCALAR1  (PNX8550_INT_GIC_MIN+27)
+#define PNX8550_INT_VIDEO_MPEG         (PNX8550_INT_GIC_MIN+28)
+#define PNX8550_INT_VIDEO_INPUT_P1     (PNX8550_INT_GIC_MIN+29)
+
+#define PNX8550_INT_VIDEO_INPUT_P2     (PNX8550_INT_GIC_MIN+30)
+#define PNX8550_INT_SPDI1              (PNX8550_INT_GIC_MIN+31)
+#define PNX8550_INT_SPDO               (PNX8550_INT_GIC_MIN+32)
+#define PNX8550_INT_AUDIO_INPUT1       (PNX8550_INT_GIC_MIN+33)
+#define PNX8550_INT_AUDIO_OUTPUT1      (PNX8550_INT_GIC_MIN+34)
+#define PNX8550_INT_AUDIO_INPUT2       (PNX8550_INT_GIC_MIN+35)
+#define PNX8550_INT_AUDIO_OUTPUT2      (PNX8550_INT_GIC_MIN+36)
+#define PNX8550_INT_MEMBASED_SCALAR2   (PNX8550_INT_GIC_MIN+37)
+#define PNX8550_INT_VPK                (PNX8550_INT_GIC_MIN+38)
+#define PNX8550_INT_MPEG1_MIPS         (PNX8550_INT_GIC_MIN+39)
+
+#define PNX8550_INT_MPEG1_TM           (PNX8550_INT_GIC_MIN+40)
+#define PNX8550_INT_MPEG2_MIPS         (PNX8550_INT_GIC_MIN+41)
+#define PNX8550_INT_MPEG2_TM           (PNX8550_INT_GIC_MIN+42)
+#define PNX8550_INT_TS_DMA             (PNX8550_INT_GIC_MIN+43)
+#define PNX8550_INT_EDMA               (PNX8550_INT_GIC_MIN+44)
+#define PNX8550_INT_TM_DEBUG1          (PNX8550_INT_GIC_MIN+45)
+#define PNX8550_INT_TM_DEBUG2          (PNX8550_INT_GIC_MIN+46)
+#define PNX8550_INT_PCI_INTA           (PNX8550_INT_GIC_MIN+47)
+#define PNX8550_INT_CLOCK_MODULE       (PNX8550_INT_GIC_MIN+48)
+#define PNX8550_INT_PCI_XIO_INTA_PCI   (PNX8550_INT_GIC_MIN+49)
+
+#define PNX8550_INT_PCI_XIO_INTB_DMA   (PNX8550_INT_GIC_MIN+50)
+#define PNX8550_INT_PCI_XIO_INTC_GPPM  (PNX8550_INT_GIC_MIN+51)
+#define PNX8550_INT_PCI_XIO_INTD_GPXIO (PNX8550_INT_GIC_MIN+52)
+#define PNX8550_INT_DVD_CSS            (PNX8550_INT_GIC_MIN+53)
+#define PNX8550_INT_VLD                (PNX8550_INT_GIC_MIN+54)
+#define PNX8550_INT_GPIO_TSU_7_0       (PNX8550_INT_GIC_MIN+55)
+#define PNX8550_INT_GPIO_TSU_15_8      (PNX8550_INT_GIC_MIN+56)
+#define PNX8550_INT_GPIO_CTU_IR        (PNX8550_INT_GIC_MIN+57)
+#define PNX8550_INT_GPIO0              (PNX8550_INT_GIC_MIN+58)
+#define PNX8550_INT_GPIO1              (PNX8550_INT_GIC_MIN+59)
+
+#define PNX8550_INT_GPIO2              (PNX8550_INT_GIC_MIN+60)
+#define PNX8550_INT_GPIO3              (PNX8550_INT_GIC_MIN+61)
+#define PNX8550_INT_GPIO4              (PNX8550_INT_GIC_MIN+62)
+#define PNX8550_INT_GPIO5              (PNX8550_INT_GIC_MIN+63)
+#define PNX8550_INT_GPIO6              (PNX8550_INT_GIC_MIN+64)
+#define PNX8550_INT_GPIO7              (PNX8550_INT_GIC_MIN+65)
+#define PNX8550_INT_PMAN_SECURITY      (PNX8550_INT_GIC_MIN+66)
+#define PNX8550_INT_I2C3               (PNX8550_INT_GIC_MIN+67)
+#define PNX8550_INT_RESERVED_68        (PNX8550_INT_GIC_MIN+68)
+#define PNX8550_INT_SPDI2              (PNX8550_INT_GIC_MIN+69)
+
+#define PNX8550_INT_I2C4               (PNX8550_INT_GIC_MIN+70)
+
+// Timer are 3 exceptions connected to cp0's 7th hardware exception
+#define PNX8550_INT_TIMER_TOTINT       3
+#define PNX8550_INT_TIMER_MIN	       (PNX8550_INT_GIC_MAX+1)
+#define PNX8550_INT_TIMER_MAX          (PNX8550_INT_TIMER_MIN + PNX8550_INT_TIMER_TOTINT - 1)
+
+#define PNX8550_INT_TIMER1             (PNX8550_INT_TIMER_MIN+0)
+#define PNX8550_INT_TIMER2             (PNX8550_INT_TIMER_MIN+1)
+#define PNX8550_INT_TIMER3             (PNX8550_INT_TIMER_MIN+2)
+#define PNX8550_INT_WATCHDOG           PNX8550_INT_TIMER3
+
+#endif
diff --git a/include/asm-mips/mach-pnx8550/kernel-entry-init.h b/include/asm-mips/mach-pnx8550/kernel-entry-init.h
new file mode 100644
index 000000000000..57102fa9da51
--- /dev/null
+++ b/include/asm-mips/mach-pnx8550/kernel-entry-init.h
@@ -0,0 +1,262 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005 Embedded Alley Solutions, Inc
+ */
+#ifndef __ASM_MACH_KERNEL_ENTRY_INIT_H
+#define __ASM_MACH_KERNEL_ENTRY_INIT_H
+
+#include <asm/cacheops.h>
+#include <asm/addrspace.h>
+
+#define CO_CONFIGPR_VALID  0x3F1F41FF    /* valid bits to write to ConfigPR */
+#define HAZARD_CP0 nop; nop; nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;
+#define CACHE_OPC      0xBC000000  /* MIPS cache instruction opcode */
+#define ICACHE_LINE_SIZE        32      /* Instruction cache line size bytes */
+#define DCACHE_LINE_SIZE        32      /* Data cache line size in bytes */
+
+#define ICACHE_SET_COUNT        256     /* Instruction cache set count */
+#define DCACHE_SET_COUNT        128     /* Data cache set count */
+
+#define ICACHE_SET_SIZE         (ICACHE_SET_COUNT * ICACHE_LINE_SIZE)
+#define DCACHE_SET_SIZE         (DCACHE_SET_COUNT * DCACHE_LINE_SIZE)
+
+	.macro	kernel_entry_setup
+	.set	push
+	.set	noreorder
+	/*
+	 * PNX8550 entry point, when running a non compressed
+	 * kernel. When loading a zImage, the head.S code in
+	 * arch/mips/zboot/pnx8550 will init the caches and,
+	 * decompress the kernel, and branch to kernel_entry.
+		 */
+cache_begin:	li	t0, (1<<28)
+	mtc0	t0, CP0_STATUS /* cp0 usable */
+	HAZARD_CP0
+
+	mtc0 	zero, CP0_CAUSE
+	HAZARD_CP0
+
+
+	/* Set static virtual to phys address translation and TLB disabled */
+	mfc0 	t0, CP0_CONFIG, 7
+	HAZARD_CP0
+
+	and t0,~((1<<19) | (1<<20))     /* TLB/MAP cleared */
+	mtc0	t0, CP0_CONFIG, 7
+	HAZARD_CP0
+
+	/* CPU boots with kseg0 cache algo set to 0x2 -- uncached */
+
+	init_icache
+	nop
+	init_dcache
+	nop
+
+	cachePr4450ICReset
+	nop
+
+	cachePr4450DCReset
+	nop
+
+	/* read ConfigPR into t0 */
+	mfc0	t0, CP0_CONFIG, 7
+	HAZARD_CP0
+
+	/*  enable the TLB */
+	or      t0, (1<<19)
+
+	/* disable the ICACHE: at least 10x slower */
+	/* or      t0, (1<<26) */
+
+	/* disable the DCACHE; CONFIG_CPU_HAS_LLSC should not be set  */
+	/* or      t0, (1<<27) */
+
+	and	t0, CO_CONFIGPR_VALID
+
+	/* enable TLB. */
+	mtc0	t0, CP0_CONFIG, 7
+	HAZARD_CP0
+cache_end:
+	/* Setup CMEM_0 to MMIO address space, 2MB */
+	lui    t0, 0x1BE0
+	addi   t0, t0, 0x3
+	mtc0   $8, $22, 4
+	nop
+
+	/* Setup CMEM_1, 128MB */
+	lui    t0, 0x1000
+	addi   t0, t0, 0xf
+	mtc0   $8, $22, 5
+	nop
+
+
+	/* Setup CMEM_2, 32MB */
+	lui    t0, 0x1C00
+	addi   t0, t0, 0xb
+	mtc0   $8, $22, 6
+	nop
+
+	/* Setup CMEM_3, 0MB */
+	lui    t0, 0x0
+	addi   t0, t0, 0x0
+	mtc0   $8, $22, 7
+	nop
+
+	/* Enable cache */
+	mfc0	t0, CP0_CONFIG
+	HAZARD_CP0
+	and	t0, t0, 0xFFFFFFF8
+	or	t0, t0, 3
+	mtc0	t0, CP0_CONFIG
+	HAZARD_CP0
+	.set	pop
+	.endm
+
+	.macro	init_icache
+	.set	push
+	.set	noreorder
+
+	/* Get Cache Configuration */
+	mfc0	t3, CP0_CONFIG, 1
+	HAZARD_CP0
+
+	/* get cache Line size */
+
+	srl   t1, t3, 19   /* C0_CONFIGPR_IL_SHIFT */
+	andi  t1, t1, 0x7  /* C0_CONFIGPR_IL_MASK */
+	beq   t1, zero, pr4450_instr_cache_invalidated /* if zero instruction cache is absent */
+	nop
+	addiu t0, t1, 1
+	ori   t1, zero, 1
+	sllv  t1, t1, t0
+
+	/* get max cache Index */
+	srl   t2, t3, 22  /* C0_CONFIGPR_IS_SHIFT */
+	andi  t2, t2, 0x7 /* C0_CONFIGPR_IS_MASK */
+	addiu t0, t2, 6
+	ori   t2, zero, 1
+	sllv  t2, t2, t0
+
+	/* get max cache way */
+	srl   t3, t3, 16  /* C0_CONFIGPR_IA_SHIFT */
+	andi  t3, t3, 0x7 /* C0_CONFIGPR_IA_MASK */
+	addiu t3, t3, 1
+
+	/* total no of cache lines */
+	multu t2, t3             /* max index * max way */
+	mflo  t2
+	addiu t2, t2, -1
+
+	move  t0, zero
+pr4450_next_instruction_cache_set:
+	cache  Index_Invalidate_I, 0(t0)
+	addu  t0, t0, t1         /* add bytes in a line */
+	bne   t2, zero, pr4450_next_instruction_cache_set
+	addiu t2, t2, -1   /* reduce no of lines to invalidate by one */
+pr4450_instr_cache_invalidated:
+	.set	pop
+	.endm
+
+	.macro	init_dcache
+	.set	push
+	.set	noreorder
+	move t1, zero
+
+	/* Store Tag Information */
+	mtc0	zero, CP0_TAGLO, 0
+	HAZARD_CP0
+
+	mtc0	zero, CP0_TAGHI, 0
+	HAZARD_CP0
+
+	/* Cache size is 16384 = 512 lines x 32 bytes per line */
+	or       t2, zero, (128*4)-1  /* 512 lines  */
+	/* Invalidate all lines */
+2:
+	cache Index_Store_Tag_D, 0(t1)
+	addiu    t2, t2, -1
+	bne      t2, zero, 2b
+	addiu    t1, t1, 32        /* 32 bytes in a line */
+	.set pop
+	.endm
+
+	.macro	cachePr4450ICReset
+	.set	push
+	.set	noreorder
+
+	/* Save CP0 status reg on entry; */
+	/* disable interrupts during cache reset */
+	mfc0    t0, CP0_STATUS      /* T0 = interrupt status on entry */
+	HAZARD_CP0
+
+	mtc0    zero, CP0_STATUS   /* disable CPU interrupts */
+	HAZARD_CP0
+
+	or      t1, zero, zero              /* T1 = starting cache index (0) */
+	ori     t2, zero, (256 - 1) /* T2 = inst cache set cnt - 1 */
+
+	icache_invd_loop:
+	/* 9 == register t1 */
+	.word   (CACHE_OPC | (9 << 21) | (Index_Invalidate_I << 16) | \
+		(0 * ICACHE_SET_SIZE))  /* invalidate inst cache WAY0 */
+	.word   (CACHE_OPC | (9 << 21) | (Index_Invalidate_I << 16) | \
+		(1 * ICACHE_SET_SIZE))  /* invalidate inst cache WAY1 */
+
+	addiu   t1, t1, ICACHE_LINE_SIZE    /* T1 = next cache line index */
+	bne     t2, zero, icache_invd_loop /* T2 = 0 if all sets invalidated */
+	addiu   t2, t2, -1        /* decrement T2 set cnt (delay slot) */
+
+	/* Initialize the latches in the instruction cache tag */
+	/* that drive the way selection tri-state bus drivers, by doing a */
+	/* dummy load while the instruction cache is still disabled. */
+	/* TODO: Is this needed ? */
+	la      t1, KSEG0            /* T1 = cached memory base address */
+	lw      zero, 0x0000(t1)      /* (dummy read of first memory word) */
+
+	mtc0    t0, CP0_STATUS        /* restore interrupt status on entry */
+	HAZARD_CP0
+	.set	pop
+	.endm
+
+	.macro	cachePr4450DCReset
+	.set	push
+	.set	noreorder
+	mfc0    t0, CP0_STATUS           /* T0 = interrupt status on entry */
+	HAZARD_CP0
+	mtc0    zero, CP0_STATUS         /* disable CPU interrupts */
+	HAZARD_CP0
+
+	/* Writeback/invalidate entire data cache sets/ways/lines */
+	or      t1, zero, zero              /* T1 = starting cache index (0) */
+	ori     t2, zero, (DCACHE_SET_COUNT - 1) /* T2 = data cache set cnt - 1 */
+
+	dcache_wbinvd_loop:
+	/* 9 == register t1 */
+	.word   (CACHE_OPC | (9 << 21) | (Index_Writeback_Inv_D << 16) | \
+		(0 * DCACHE_SET_SIZE))  /* writeback/invalidate WAY0 */
+	.word   (CACHE_OPC | (9 << 21) | (Index_Writeback_Inv_D << 16) | \
+		(1 * DCACHE_SET_SIZE))  /* writeback/invalidate WAY1 */
+	.word   (CACHE_OPC | (9 << 21) | (Index_Writeback_Inv_D << 16) | \
+		(2 * DCACHE_SET_SIZE))  /* writeback/invalidate WAY2 */
+	.word   (CACHE_OPC | (9 << 21) | (Index_Writeback_Inv_D << 16) | \
+		(3 * DCACHE_SET_SIZE))  /* writeback/invalidate WAY3 */
+
+	addiu   t1, t1, DCACHE_LINE_SIZE  /* T1 = next data cache line index */
+	bne     t2, zero, dcache_wbinvd_loop /* T2 = 0 when wbinvd entire cache */
+	addiu   t2, t2, -1          /* decrement T2 set cnt (delay slot) */
+
+	/* Initialize the latches in the data cache tag that drive the way
+	selection tri-state bus drivers, by doing a dummy load while the
+	data cache is still in the disabled mode.  TODO: Is this needed ? */
+	la      t1, KSEG0            /* T1 = cached memory base address */
+	lw      zero, 0x0000(t1)      /* (dummy read of first memory word) */
+
+	mtc0    t0, CP0_STATUS       /* restore interrupt status on entry */
+	HAZARD_CP0
+	.set	pop
+	.endm
+
+#endif /* __ASM_MACH_KERNEL_ENTRY_INIT_H */
diff --git a/include/asm-mips/mach-pnx8550/nand.h b/include/asm-mips/mach-pnx8550/nand.h
new file mode 100644
index 000000000000..aefbc514ab09
--- /dev/null
+++ b/include/asm-mips/mach-pnx8550/nand.h
@@ -0,0 +1,121 @@
+#ifndef __PNX8550_NAND_H
+#define __PNX8550_NAND_H
+
+#define PNX8550_NAND_BASE_ADDR   0x10000000
+#define PNX8550_PCIXIO_BASE	 0xBBE40000
+
+#define PNX8550_DMA_EXT_ADDR     *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0x800)
+#define PNX8550_DMA_INT_ADDR     *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0x804)
+#define PNX8550_DMA_TRANS_SIZE   *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0x808)
+#define PNX8550_DMA_CTRL         *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0x80c)
+#define PNX8550_XIO_SEL0         *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0x814)
+#define PNX8550_GPXIO_ADDR       *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0x820)
+#define PNX8550_GPXIO_WR         *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0x824)
+#define PNX8550_GPXIO_RD         *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0x828)
+#define PNX8550_GPXIO_CTRL       *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0x82C)
+#define PNX8550_XIO_FLASH_CTRL   *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0x830)
+#define PNX8550_GPXIO_INT_STATUS *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0xfb0)
+#define PNX8550_GPXIO_INT_ENABLE *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0xfb4)
+#define PNX8550_GPXIO_INT_CLEAR  *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0xfb8)
+#define PNX8550_DMA_INT_STATUS   *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0xfd0)
+#define PNX8550_DMA_INT_ENABLE   *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0xfd4)
+#define PNX8550_DMA_INT_CLEAR    *(volatile unsigned long *)(PNX8550_PCIXIO_BASE + 0xfd8)
+
+#define PNX8550_XIO_SEL0_EN_16BIT    0x00800000
+#define PNX8550_XIO_SEL0_USE_ACK     0x00400000
+#define PNX8550_XIO_SEL0_REN_HIGH    0x00100000
+#define PNX8550_XIO_SEL0_REN_LOW     0x00040000
+#define PNX8550_XIO_SEL0_WEN_HIGH    0x00010000
+#define PNX8550_XIO_SEL0_WEN_LOW     0x00004000
+#define PNX8550_XIO_SEL0_WAIT        0x00000200
+#define PNX8550_XIO_SEL0_OFFSET      0x00000020
+#define PNX8550_XIO_SEL0_TYPE_68360  0x00000000
+#define PNX8550_XIO_SEL0_TYPE_NOR    0x00000008
+#define PNX8550_XIO_SEL0_TYPE_NAND   0x00000010
+#define PNX8550_XIO_SEL0_TYPE_IDE    0x00000018
+#define PNX8550_XIO_SEL0_SIZE_8MB    0x00000000
+#define PNX8550_XIO_SEL0_SIZE_16MB   0x00000002
+#define PNX8550_XIO_SEL0_SIZE_32MB   0x00000004
+#define PNX8550_XIO_SEL0_SIZE_64MB   0x00000006
+#define PNX8550_XIO_SEL0_ENAB        0x00000001
+
+#define PNX8550_SEL0_DEFAULT ((PNX8550_XIO_SEL0_EN_16BIT)  | \
+                              (PNX8550_XIO_SEL0_REN_HIGH*0)| \
+	                      (PNX8550_XIO_SEL0_REN_LOW*2) | \
+	                      (PNX8550_XIO_SEL0_WEN_HIGH*0)| \
+                              (PNX8550_XIO_SEL0_WEN_LOW*2) | \
+	                      (PNX8550_XIO_SEL0_WAIT*4)    | \
+			      (PNX8550_XIO_SEL0_OFFSET*0)  | \
+			      (PNX8550_XIO_SEL0_TYPE_NAND) | \
+			      (PNX8550_XIO_SEL0_SIZE_32MB) | \
+			      (PNX8550_XIO_SEL0_ENAB))
+
+#define PNX8550_GPXIO_PENDING        0x00000200
+#define PNX8550_GPXIO_DONE           0x00000100
+#define PNX8550_GPXIO_CLR_DONE       0x00000080
+#define PNX8550_GPXIO_INIT           0x00000040
+#define PNX8550_GPXIO_READ_CMD       0x00000010
+#define PNX8550_GPXIO_BEN            0x0000000F
+
+#define PNX8550_XIO_FLASH_64MB       0x00200000
+#define PNX8550_XIO_FLASH_INC_DATA   0x00100000
+#define PNX8550_XIO_FLASH_CMD_PH     0x000C0000
+#define PNX8550_XIO_FLASH_CMD_PH2    0x00080000
+#define PNX8550_XIO_FLASH_CMD_PH1    0x00040000
+#define PNX8550_XIO_FLASH_CMD_PH0    0x00000000
+#define PNX8550_XIO_FLASH_ADR_PH     0x00030000
+#define PNX8550_XIO_FLASH_ADR_PH3    0x00030000
+#define PNX8550_XIO_FLASH_ADR_PH2    0x00020000
+#define PNX8550_XIO_FLASH_ADR_PH1    0x00010000
+#define PNX8550_XIO_FLASH_ADR_PH0    0x00000000
+#define PNX8550_XIO_FLASH_CMD_B(x)   ((x<<8) & 0x0000FF00)
+#define PNX8550_XIO_FLASH_CMD_A(x)   (x & 0x000000FF)
+
+#define PNX8550_XIO_INT_ACK          0x00004000
+#define PNX8550_XIO_INT_COMPL        0x00002000
+#define PNX8550_XIO_INT_NONSUP       0x00000200
+#define PNX8550_XIO_INT_ABORT        0x00000004
+
+#define PNX8550_DMA_CTRL_SINGLE_DATA 0x00000400
+#define PNX8550_DMA_CTRL_SND2XIO     0x00000200
+#define PNX8550_DMA_CTRL_FIX_ADDR    0x00000100
+#define PNX8550_DMA_CTRL_BURST_8     0x00000000
+#define PNX8550_DMA_CTRL_BURST_16    0x00000020
+#define PNX8550_DMA_CTRL_BURST_32    0x00000040
+#define PNX8550_DMA_CTRL_BURST_64    0x00000060
+#define PNX8550_DMA_CTRL_BURST_128   0x00000080
+#define PNX8550_DMA_CTRL_BURST_256   0x000000A0
+#define PNX8550_DMA_CTRL_BURST_512   0x000000C0
+#define PNX8550_DMA_CTRL_BURST_NORES 0x000000E0
+#define PNX8550_DMA_CTRL_INIT_DMA    0x00000010
+#define PNX8550_DMA_CTRL_CMD_TYPE    0x0000000F
+
+/* see PCI system arch, page 100 for the full list: */
+#define PNX8550_DMA_CTRL_PCI_CMD_READ    0x00000006
+#define PNX8550_DMA_CTRL_PCI_CMD_WRITE   0x00000007
+
+#define PNX8550_DMA_INT_STAT_ACK_DONE	(1<<14)
+#define PNX8550_DMA_INT_STAT_DMA_DONE	(1<<12)
+#define PNX8550_DMA_INT_STAT_DMA_ERR	(1<<9)
+#define PNX8550_DMA_INT_STAT_PERR5	(1<<5)
+#define PNX8550_DMA_INT_STAT_PERR4	(1<<4)
+#define PNX8550_DMA_INT_STAT_M_ABORT	(1<<2)
+#define PNX8550_DMA_INT_STAT_T_ABORT	(1<<1)
+
+#define PNX8550_DMA_INT_EN_ACK_DONE	(1<<14)
+#define PNX8550_DMA_INT_EN_DMA_DONE	(1<<12)
+#define PNX8550_DMA_INT_EN_DMA_ERR	(1<<9)
+#define PNX8550_DMA_INT_EN_PERR5	(1<<5)
+#define PNX8550_DMA_INT_EN_PERR4	(1<<4)
+#define PNX8550_DMA_INT_EN_M_ABORT	(1<<2)
+#define PNX8550_DMA_INT_EN_T_ABORT	(1<<1)
+
+#define PNX8550_DMA_INT_CLR_ACK_DONE	(1<<14)
+#define PNX8550_DMA_INT_CLR_DMA_DONE	(1<<12)
+#define PNX8550_DMA_INT_CLR_DMA_ERR	(1<<9)
+#define PNX8550_DMA_INT_CLR_PERR5	(1<<5)
+#define PNX8550_DMA_INT_CLR_PERR4	(1<<4)
+#define PNX8550_DMA_INT_CLR_M_ABORT	(1<<2)
+#define PNX8550_DMA_INT_CLR_T_ABORT	(1<<1)
+
+#endif
diff --git a/include/asm-mips/mach-pnx8550/pci.h b/include/asm-mips/mach-pnx8550/pci.h
new file mode 100644
index 000000000000..b921508d701b
--- /dev/null
+++ b/include/asm-mips/mach-pnx8550/pci.h
@@ -0,0 +1,185 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ * PCI specific definitions
+ *
+ * Author: source@mvista.com
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ */
+
+#ifndef __PNX8550_PCI_H
+#define __PNX8550_PCI_H
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#define PCI_ACCESS_READ  0
+#define PCI_ACCESS_WRITE 1
+
+#define PCI_CMD_IOR                     0x20
+#define PCI_CMD_IOW                     0x30
+#define PCI_CMD_CONFIG_READ             0xa0
+#define PCI_CMD_CONFIG_WRITE            0xb0
+
+#define PCI_IO_TIMEOUT                  1000
+#define PCI_IO_RETRY			5
+/* Timeout for IO and CFG accesses.
+   This is in 1/1024 th of a jiffie(=10ms)
+   i.e. approx 10us */
+#define PCI_IO_JIFFIES_TIMEOUT          40
+#define PCI_IO_JIFFIES_SHIFT            10
+
+#define PCI_BYTE_ENABLE_MASK		0x0000000f
+#define PCI_CFG_BUS_SHIFT               16
+#define PCI_CFG_FUNC_SHIFT              8
+#define PCI_CFG_REG_SHIFT               2
+
+#define PCI_BASE                  0x1be00000
+#define PCI_SETUP                 0x00040010
+#define PCI_DIS_REQGNT           (1<<30)
+#define PCI_DIS_REQGNTA          (1<<29)
+#define PCI_DIS_REQGNTB          (1<<28)
+#define PCI_D2_SUPPORT           (1<<27)
+#define PCI_D1_SUPPORT           (1<<26)
+#define PCI_EN_TA                (1<<24)
+#define PCI_EN_PCI2MMI           (1<<23)
+#define PCI_EN_XIO               (1<<22)
+#define PCI_BASE18_PREF          (1<<21)
+#define SIZE_16M                 0x3
+#define SIZE_32M                 0x4
+#define SIZE_64M                 0x5
+#define SIZE_128M                0x6
+#define PCI_SETUP_BASE18_SIZE(X) (X<<18)
+#define PCI_SETUP_BASE18_EN      (1<<17)
+#define PCI_SETUP_BASE14_PREF    (1<<16)
+#define PCI_SETUP_BASE14_SIZE(X) (X<<12)
+#define PCI_SETUP_BASE14_EN      (1<<11)
+#define PCI_SETUP_BASE10_PREF    (1<<10)
+#define PCI_SETUP_BASE10_SIZE(X) (X<<7)
+#define PCI_SETUP_CFGMANAGE_EN   (1<<1)
+#define PCI_SETUP_PCIARB_EN      (1<<0)
+
+#define PCI_CTRL                  0x040014
+#define PCI_SWPB_DCS_PCI         (1<<16)
+#define PCI_SWPB_PCI_PCI         (1<<15)
+#define PCI_SWPB_PCI_DCS         (1<<14)
+#define PCI_REG_WR_POST          (1<<13)
+#define PCI_XIO_WR_POST          (1<<12)
+#define PCI_PCI2_WR_POST         (1<<13)
+#define PCI_PCI1_WR_POST         (1<<12)
+#define PCI_SERR_SEEN            (1<<11)
+#define PCI_B10_SPEC_RD          (1<<6)
+#define PCI_B14_SPEC_RD          (1<<5)
+#define PCI_B18_SPEC_RD          (1<<4)
+#define PCI_B10_NOSUBWORD        (1<<3)
+#define PCI_B14_NOSUBWORD        (1<<2)
+#define PCI_B18_NOSUBWORD        (1<<1)
+#define PCI_RETRY_TMREN          (1<<0)
+
+#define PCI_BASE1_LO              0x040018
+#define PCI_BASE1_HI              0x04001C
+#define PCI_BASE2_LO              0x040020
+#define PCI_BASE2_HI              0x040024
+#define PCI_RDLIFETIM             0x040028
+#define PCI_GPPM_ADDR             0x04002C
+#define PCI_GPPM_WDAT             0x040030
+#define PCI_GPPM_RDAT             0x040034
+#define PCI_GPPM_CTRL             0x040038
+#define GPPM_DONE                (1<<10)
+#define INIT_PCI_CYCLE           (1<<9)
+#define GPPM_CMD(X)              (((X)&0xf)<<4)
+#define GPPM_BYTEEN(X)           ((X)&0xf)
+#define PCI_UNLOCKREG             0x04003C
+#define UNLOCK_SSID(X)           (((X)&0xff)<<8)
+#define UNLOCK_SETUP(X)          (((X)&0xff)<<0)
+#define UNLOCK_MAGIC             0xCA
+#define PCI_DEV_VEND_ID           0x040040
+#define DEVICE_ID(X)             (((X)>>16)&0xffff)
+#define VENDOR_ID(X)             (((X)&0xffff))
+#define PCI_CFG_CMDSTAT           0x040044
+#define PCI_CFG_STATUS(X)            (((X)>>16)&0xffff)
+#define PCI_CFG_COMMAND(X)           ((X)&0xffff)
+#define PCI_CLASS_REV             0x040048
+#define PCI_CLASSCODE(X)         (((X)>>8)&0xffffff)
+#define PCI_REVID(X)             ((X)&0xff)
+#define PCI_LAT_TMR     0x04004c
+#define PCI_BASE10      0x040050
+#define PCI_BASE14      0x040054
+#define PCI_BASE18      0x040058
+#define PCI_SUBSYS_ID   0x04006c
+#define PCI_CAP_PTR     0x040074
+#define PCI_CFG_MISC    0x04007c
+#define PCI_PMC         0x040080
+#define PCI_PWR_STATE   0x040084
+#define PCI_IO          0x040088
+#define PCI_SLVTUNING   0x04008C
+#define PCI_DMATUNING   0x040090
+#define PCI_DMAEADDR    0x040800
+#define PCI_DMAIADDR    0x040804
+#define PCI_DMALEN      0x040808
+#define PCI_DMACTRL     0x04080C
+#define PCI_XIOCTRL     0x040810
+#define PCI_SEL0PROF    0x040814
+#define PCI_SEL1PROF    0x040818
+#define PCI_SEL2PROF    0x04081C
+#define PCI_GPXIOADDR   0x040820
+#define PCI_NANDCTRLS   0x400830
+#define PCI_SEL3PROF    0x040834
+#define PCI_SEL4PROF    0x040838
+#define PCI_GPXIO_STAT  0x040FB0
+#define PCI_GPXIO_IMASK 0x040FB4
+#define PCI_GPXIO_ICLR  0x040FB8
+#define PCI_GPXIO_ISET  0x040FBC
+#define PCI_GPPM_STATUS 0x040FC0
+#define GPPM_DONE      (1<<10)
+#define GPPM_ERR       (1<<9)
+#define GPPM_MPAR_ERR  (1<<8)
+#define GPPM_PAR_ERR   (1<<7)
+#define GPPM_R_MABORT  (1<<2)
+#define GPPM_R_TABORT  (1<<1)
+#define PCI_GPPM_IMASK  0x040FC4
+#define PCI_GPPM_ICLR   0x040FC8
+#define PCI_GPPM_ISET   0x040FCC
+#define PCI_DMA_STATUS  0x040FD0
+#define PCI_DMA_IMASK   0x040FD4
+#define PCI_DMA_ICLR    0x040FD8
+#define PCI_DMA_ISET    0x040FDC
+#define PCI_ISTATUS     0x040FE0
+#define PCI_IMASK       0x040FE4
+#define PCI_ICLR        0x040FE8
+#define PCI_ISET        0x040FEC
+#define PCI_MOD_ID      0x040FFC
+
+/*
+ *  PCI configuration cycle AD bus definition
+ */
+/* Type 0 */
+#define PCI_CFG_TYPE0_REG_SHF           0
+#define PCI_CFG_TYPE0_FUNC_SHF          8
+
+/* Type 1 */
+#define PCI_CFG_TYPE1_REG_SHF           0
+#define PCI_CFG_TYPE1_FUNC_SHF          8
+#define PCI_CFG_TYPE1_DEV_SHF           11
+#define PCI_CFG_TYPE1_BUS_SHF           16
+
+/*
+ *  Ethernet device DP83816 definition
+ */
+#define DP83816_IRQ_ETHER               66
+
+#endif
diff --git a/include/asm-mips/mach-pnx8550/uart.h b/include/asm-mips/mach-pnx8550/uart.h
new file mode 100644
index 000000000000..e32b9a23d70e
--- /dev/null
+++ b/include/asm-mips/mach-pnx8550/uart.h
@@ -0,0 +1,16 @@
+#ifndef __IP3106_UART_H
+#define __IP3106_UART_H
+
+#include <int.h>
+
+/* early macros for kgdb use. fixme: clean this up */
+
+#define UART_BASE		0xbbe4a000	/* PNX8550 */
+
+#define PNX8550_UART_PORT0	(UART_BASE)
+#define PNX8550_UART_PORT1	(UART_BASE + 0x1000)
+
+#define PNX8550_UART_INT(x)		(PNX8550_INT_GIC_MIN+19+x)
+#define IRQ_TO_UART(x)			(x-PNX8550_INT_GIC_MIN-19)
+
+#endif
diff --git a/include/asm-mips/mach-pnx8550/usb.h b/include/asm-mips/mach-pnx8550/usb.h
new file mode 100644
index 000000000000..483b7fc65d41
--- /dev/null
+++ b/include/asm-mips/mach-pnx8550/usb.h
@@ -0,0 +1,32 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *  USB specific definitions
+ *
+ * Author: source@mvista.com
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ */
+
+#ifndef __PNX8550_USB_H
+#define __PNX8550_USB_H
+
+/*
+ * USB Host controller
+ */
+
+#define PNX8550_USB_OHCI_OP_BASE	0x1be48000
+#define PNX8550_USB_OHCI_OP_LEN	        0x1000
+
+#endif
diff --git a/include/asm-mips/mipsregs.h b/include/asm-mips/mipsregs.h
index a7a43ff8c5cf..08aa231b4dea 100644
--- a/include/asm-mips/mipsregs.h
+++ b/include/asm-mips/mipsregs.h
@@ -841,12 +841,24 @@ do {									\
 #define read_c0_count()		__read_32bit_c0_register($9, 0)
 #define write_c0_count(val)	__write_32bit_c0_register($9, 0, val)
 
+#define read_c0_count2()	__read_32bit_c0_register($9, 6) /* pnx8550 */
+#define write_c0_count2(val)	__write_32bit_c0_register($9, 6, val)
+
+#define read_c0_count3()	__read_32bit_c0_register($9, 7) /* pnx8550 */
+#define write_c0_count3(val)	__write_32bit_c0_register($9, 7, val)
+
 #define read_c0_entryhi()	__read_ulong_c0_register($10, 0)
 #define write_c0_entryhi(val)	__write_ulong_c0_register($10, 0, val)
 
 #define read_c0_compare()	__read_32bit_c0_register($11, 0)
 #define write_c0_compare(val)	__write_32bit_c0_register($11, 0, val)
 
+#define read_c0_compare2()	__read_32bit_c0_register($11, 6) /* pnx8550 */
+#define write_c0_compare2(val)	__write_32bit_c0_register($11, 6, val)
+
+#define read_c0_compare3()	__read_32bit_c0_register($11, 7) /* pnx8550 */
+#define write_c0_compare3(val)	__write_32bit_c0_register($11, 7, val)
+
 #define read_c0_status()	__read_32bit_c0_register($12, 0)
 #define write_c0_status(val)	__write_32bit_c0_register($12, 0, val)