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!

1 files changed, 1336 insertions, 0 deletions

diff --git a/arch/ppc/platforms/prep_pci.c b/arch/ppc/platforms/prep_pci.c
new file mode 100644
index 000000000000..8cd80eb447bd
--- /dev/null
+++ b/arch/ppc/platforms/prep_pci.c
@@ -0,0 +1,1336 @@
+/*
+ * PReP pci functions.
+ * Originally by Gary Thomas
+ * rewritten and updated by Cort Dougan (cort@cs.nmt.edu)
+ *
+ * The motherboard routes/maps will disappear shortly. -- Cort
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/sections.h>
+#include <asm/byteorder.h>
+#include <asm/io.h>
+#include <asm/ptrace.h>
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+#include <asm/residual.h>
+#include <asm/irq.h>
+#include <asm/machdep.h>
+#include <asm/open_pic.h>
+
+extern void (*setup_ibm_pci)(char *irq_lo, char *irq_hi);
+
+/* Which PCI interrupt line does a given device [slot] use? */
+/* Note: This really should be two dimensional based in slot/pin used */
+static unsigned char *Motherboard_map;
+unsigned char *Motherboard_map_name;
+
+/* How is the 82378 PIRQ mapping setup? */
+static unsigned char *Motherboard_routes;
+
+static void (*Motherboard_non0)(struct pci_dev *);
+
+static void Powerplus_Map_Non0(struct pci_dev *);
+
+/* Used for Motorola to store system config register */
+static unsigned long	*ProcInfo;
+
+/* Tables for known hardware */
+
+/* Motorola PowerStackII - Utah */
+static char Utah_pci_IRQ_map[23] __prepdata =
+{
+        0,   /* Slot 0  - unused */
+        0,   /* Slot 1  - unused */
+        5,   /* Slot 2  - SCSI - NCR825A  */
+        0,   /* Slot 3  - unused */
+        3,   /* Slot 4  - Ethernet - DEC2114x */
+        0,   /* Slot 5  - unused */
+        2,   /* Slot 6  - PCI Card slot #1 */
+        3,   /* Slot 7  - PCI Card slot #2 */
+        5,   /* Slot 8  - PCI Card slot #3 */
+        5,   /* Slot 9  - PCI Bridge */
+             /* added here in case we ever support PCI bridges */
+             /* Secondary PCI bus cards are at slot-9,6 & slot-9,7 */
+        0,   /* Slot 10 - unused */
+        0,   /* Slot 11 - unused */
+        5,   /* Slot 12 - SCSI - NCR825A */
+        0,   /* Slot 13 - unused */
+        3,   /* Slot 14 - enet */
+        0,   /* Slot 15 - unused */
+        2,   /* Slot 16 - unused */
+        3,   /* Slot 17 - unused */
+        5,   /* Slot 18 - unused */
+        0,   /* Slot 19 - unused */
+        0,   /* Slot 20 - unused */
+        0,   /* Slot 21 - unused */
+        0,   /* Slot 22 - unused */
+};
+
+static char Utah_pci_IRQ_routes[] __prepdata =
+{
+        0,   /* Line 0 - Unused */
+        9,   /* Line 1 */
+	10,  /* Line 2 */
+        11,  /* Line 3 */
+        14,  /* Line 4 */
+        15,  /* Line 5 */
+};
+
+/* Motorola PowerStackII - Omaha */
+/* no integrated SCSI or ethernet */
+static char Omaha_pci_IRQ_map[23] __prepdata =
+{
+        0,   /* Slot 0  - unused */
+        0,   /* Slot 1  - unused */
+        3,   /* Slot 2  - Winbond EIDE */
+        0,   /* Slot 3  - unused */
+        0,   /* Slot 4  - unused */
+        0,   /* Slot 5  - unused */
+        1,   /* Slot 6  - PCI slot 1 */
+        2,   /* Slot 7  - PCI slot 2  */
+        3,   /* Slot 8  - PCI slot 3 */
+        4,   /* Slot 9  - PCI slot 4 */ /* needs indirect access */
+        0,   /* Slot 10 - unused */
+        0,   /* Slot 11 - unused */
+        0,   /* Slot 12 - unused */
+        0,   /* Slot 13 - unused */
+        0,   /* Slot 14 - unused */
+        0,   /* Slot 15 - unused */
+        1,   /* Slot 16  - PCI slot 1 */
+        2,   /* Slot 17  - PCI slot 2  */
+        3,   /* Slot 18  - PCI slot 3 */
+        4,   /* Slot 19  - PCI slot 4 */ /* needs indirect access */
+        0,
+        0,
+        0,
+};
+
+static char Omaha_pci_IRQ_routes[] __prepdata =
+{
+        0,   /* Line 0 - Unused */
+        9,   /* Line 1 */
+        11,  /* Line 2 */
+        14,  /* Line 3 */
+        15   /* Line 4 */
+};
+
+/* Motorola PowerStack */
+static char Blackhawk_pci_IRQ_map[19] __prepdata =
+{
+  	0,	/* Slot 0  - unused */
+  	0,	/* Slot 1  - unused */
+  	0,	/* Slot 2  - unused */
+  	0,	/* Slot 3  - unused */
+  	0,	/* Slot 4  - unused */
+  	0,	/* Slot 5  - unused */
+  	0,	/* Slot 6  - unused */
+  	0,	/* Slot 7  - unused */
+  	0,	/* Slot 8  - unused */
+  	0,	/* Slot 9  - unused */
+  	0,	/* Slot 10 - unused */
+  	0,	/* Slot 11 - unused */
+  	3,	/* Slot 12 - SCSI */
+  	0,	/* Slot 13 - unused */
+  	1,	/* Slot 14 - Ethernet */
+  	0,	/* Slot 15 - unused */
+ 	1,	/* Slot P7 */
+ 	2,	/* Slot P6 */
+ 	3,	/* Slot P5 */
+};
+
+static char Blackhawk_pci_IRQ_routes[] __prepdata =
+{
+   	0,	/* Line 0 - Unused */
+   	9,	/* Line 1 */
+   	11,	/* Line 2 */
+   	15,	/* Line 3 */
+   	15	/* Line 4 */
+};
+
+/* Motorola Mesquite */
+static char Mesquite_pci_IRQ_map[23] __prepdata =
+{
+	0,	/* Slot 0  - unused */
+	0,	/* Slot 1  - unused */
+	0,	/* Slot 2  - unused */
+	0,	/* Slot 3  - unused */
+	0,	/* Slot 4  - unused */
+	0,	/* Slot 5  - unused */
+	0,	/* Slot 6  - unused */
+	0,	/* Slot 7  - unused */
+	0,	/* Slot 8  - unused */
+	0,	/* Slot 9  - unused */
+	0,	/* Slot 10 - unused */
+	0,	/* Slot 11 - unused */
+	0,	/* Slot 12 - unused */
+	0,	/* Slot 13 - unused */
+	2,	/* Slot 14 - Ethernet */
+	0,	/* Slot 15 - unused */
+	3,	/* Slot 16 - PMC */
+	0,	/* Slot 17 - unused */
+	0,	/* Slot 18 - unused */
+	0,	/* Slot 19 - unused */
+	0,	/* Slot 20 - unused */
+	0,	/* Slot 21 - unused */
+	0,	/* Slot 22 - unused */
+};
+
+/* Motorola Sitka */
+static char Sitka_pci_IRQ_map[21] __prepdata =
+{
+	0,      /* Slot 0  - unused */
+	0,      /* Slot 1  - unused */
+	0,      /* Slot 2  - unused */
+	0,      /* Slot 3  - unused */
+	0,      /* Slot 4  - unused */
+	0,      /* Slot 5  - unused */
+	0,      /* Slot 6  - unused */
+	0,      /* Slot 7  - unused */
+	0,      /* Slot 8  - unused */
+	0,      /* Slot 9  - unused */
+	0,      /* Slot 10 - unused */
+	0,      /* Slot 11 - unused */
+	0,      /* Slot 12 - unused */
+	0,      /* Slot 13 - unused */
+	2,      /* Slot 14 - Ethernet */
+	0,      /* Slot 15 - unused */
+	9,      /* Slot 16 - PMC 1  */
+	12,     /* Slot 17 - PMC 2  */
+	0,      /* Slot 18 - unused */
+	0,      /* Slot 19 - unused */
+	4,      /* Slot 20 - NT P2P bridge */
+};
+
+/* Motorola MTX */
+static char MTX_pci_IRQ_map[23] __prepdata =
+{
+	0,	/* Slot 0  - unused */
+	0,	/* Slot 1  - unused */
+	0,	/* Slot 2  - unused */
+	0,	/* Slot 3  - unused */
+	0,	/* Slot 4  - unused */
+	0,	/* Slot 5  - unused */
+	0,	/* Slot 6  - unused */
+	0,	/* Slot 7  - unused */
+	0,	/* Slot 8  - unused */
+	0,	/* Slot 9  - unused */
+	0,	/* Slot 10 - unused */
+	0,	/* Slot 11 - unused */
+	3,	/* Slot 12 - SCSI */
+	0,	/* Slot 13 - unused */
+	2,	/* Slot 14 - Ethernet */
+	0,	/* Slot 15 - unused */
+	9,      /* Slot 16 - PCI/PMC slot 1 */
+	10,     /* Slot 17 - PCI/PMC slot 2 */
+	11,     /* Slot 18 - PCI slot 3 */
+	0,	/* Slot 19 - unused */
+	0,	/* Slot 20 - unused */
+	0,	/* Slot 21 - unused */
+	0,	/* Slot 22 - unused */
+};
+
+/* Motorola MTX Plus */
+/* Secondary bus interrupt routing is not supported yet */
+static char MTXplus_pci_IRQ_map[23] __prepdata =
+{
+        0,      /* Slot 0  - unused */
+        0,      /* Slot 1  - unused */
+        0,      /* Slot 2  - unused */
+        0,      /* Slot 3  - unused */
+        0,      /* Slot 4  - unused */
+        0,      /* Slot 5  - unused */
+        0,      /* Slot 6  - unused */
+        0,      /* Slot 7  - unused */
+        0,      /* Slot 8  - unused */
+        0,      /* Slot 9  - unused */
+        0,      /* Slot 10 - unused */
+        0,      /* Slot 11 - unused */
+        3,      /* Slot 12 - SCSI */
+        0,      /* Slot 13 - unused */
+        2,      /* Slot 14 - Ethernet 1 */
+        0,      /* Slot 15 - unused */
+        9,      /* Slot 16 - PCI slot 1P */
+        10,     /* Slot 17 - PCI slot 2P */
+        11,     /* Slot 18 - PCI slot 3P */
+        10,     /* Slot 19 - Ethernet 2 */
+        0,      /* Slot 20 - P2P Bridge */
+        0,      /* Slot 21 - unused */
+        0,      /* Slot 22 - unused */
+};
+
+static char Raven_pci_IRQ_routes[] __prepdata =
+{
+   	0,	/* This is a dummy structure */
+};
+
+/* Motorola MVME16xx */
+static char Genesis_pci_IRQ_map[16] __prepdata =
+{
+  	0,	/* Slot 0  - unused */
+  	0,	/* Slot 1  - unused */
+  	0,	/* Slot 2  - unused */
+  	0,	/* Slot 3  - unused */
+  	0,	/* Slot 4  - unused */
+  	0,	/* Slot 5  - unused */
+  	0,	/* Slot 6  - unused */
+  	0,	/* Slot 7  - unused */
+  	0,	/* Slot 8  - unused */
+  	0,	/* Slot 9  - unused */
+  	0,	/* Slot 10 - unused */
+  	0,	/* Slot 11 - unused */
+  	3,	/* Slot 12 - SCSI */
+  	0,	/* Slot 13 - unused */
+  	1,	/* Slot 14 - Ethernet */
+  	0,	/* Slot 15 - unused */
+};
+
+static char Genesis_pci_IRQ_routes[] __prepdata =
+{
+   	0,	/* Line 0 - Unused */
+   	10,	/* Line 1 */
+   	11,	/* Line 2 */
+   	14,	/* Line 3 */
+   	15	/* Line 4 */
+};
+
+static char Genesis2_pci_IRQ_map[23] __prepdata =
+{
+	0,	/* Slot 0  - unused */
+	0,	/* Slot 1  - unused */
+	0,	/* Slot 2  - unused */
+	0,	/* Slot 3  - unused */
+	0,	/* Slot 4  - unused */
+	0,	/* Slot 5  - unused */
+	0,	/* Slot 6  - unused */
+	0,	/* Slot 7  - unused */
+	0,	/* Slot 8  - unused */
+	0,	/* Slot 9  - unused */
+	0,	/* Slot 10 - unused */
+	0,	/* Slot 11 - IDE */
+	3,	/* Slot 12 - SCSI */
+	5,	/* Slot 13 - Universe PCI - VME Bridge */
+	2,	/* Slot 14 - Ethernet */
+	0,	/* Slot 15 - unused */
+	9,	/* Slot 16 - PMC 1 */
+	12,	/* Slot 17 - pci */
+	11,	/* Slot 18 - pci */
+	10,	/* Slot 19 - pci */
+	0,	/* Slot 20 - pci */
+	0,	/* Slot 21 - unused */
+	0,	/* Slot 22 - unused */
+};
+
+/* Motorola Series-E */
+static char Comet_pci_IRQ_map[23] __prepdata =
+{
+  	0,	/* Slot 0  - unused */
+  	0,	/* Slot 1  - unused */
+  	0,	/* Slot 2  - unused */
+  	0,	/* Slot 3  - unused */
+  	0,	/* Slot 4  - unused */
+  	0,	/* Slot 5  - unused */
+  	0,	/* Slot 6  - unused */
+  	0,	/* Slot 7  - unused */
+  	0,	/* Slot 8  - unused */
+  	0,	/* Slot 9  - unused */
+  	0,	/* Slot 10 - unused */
+  	0,	/* Slot 11 - unused */
+  	3,	/* Slot 12 - SCSI */
+  	0,	/* Slot 13 - unused */
+  	1,	/* Slot 14 - Ethernet */
+  	0,	/* Slot 15 - unused */
+	1,	/* Slot 16 - PCI slot 1 */
+	2,	/* Slot 17 - PCI slot 2 */
+	3,	/* Slot 18 - PCI slot 3 */
+	4,	/* Slot 19 - PCI bridge */
+	0,
+	0,
+	0,
+};
+
+static char Comet_pci_IRQ_routes[] __prepdata =
+{
+   	0,	/* Line 0 - Unused */
+   	10,	/* Line 1 */
+   	11,	/* Line 2 */
+   	14,	/* Line 3 */
+   	15	/* Line 4 */
+};
+
+/* Motorola Series-EX */
+static char Comet2_pci_IRQ_map[23] __prepdata =
+{
+	0,	/* Slot 0  - unused */
+	0,	/* Slot 1  - unused */
+	3,	/* Slot 2  - SCSI - NCR825A */
+	0,	/* Slot 3  - unused */
+	1,	/* Slot 4  - Ethernet - DEC2104X */
+	0,	/* Slot 5  - unused */
+	1,	/* Slot 6  - PCI slot 1 */
+	2,	/* Slot 7  - PCI slot 2 */
+	3,	/* Slot 8  - PCI slot 3 */
+	4,	/* Slot 9  - PCI bridge  */
+	0,	/* Slot 10 - unused */
+	0,	/* Slot 11 - unused */
+	3,	/* Slot 12 - SCSI - NCR825A */
+	0,	/* Slot 13 - unused */
+	1,	/* Slot 14 - Ethernet - DEC2104X */
+	0,	/* Slot 15 - unused */
+	1,	/* Slot 16 - PCI slot 1 */
+	2,	/* Slot 17 - PCI slot 2 */
+	3,	/* Slot 18 - PCI slot 3 */
+	4,	/* Slot 19 - PCI bridge */
+	0,
+	0,
+	0,
+};
+
+static char Comet2_pci_IRQ_routes[] __prepdata =
+{
+	0,	/* Line 0 - Unused */
+	10,	/* Line 1 */
+	11,	/* Line 2 */
+	14,	/* Line 3 */
+	15,	/* Line 4 */
+};
+
+/*
+ * ibm 830 (and 850?).
+ * This is actually based on the Carolina motherboard
+ * -- Cort
+ */
+static char ibm8xx_pci_IRQ_map[23] __prepdata = {
+        0, /* Slot 0  - unused */
+        0, /* Slot 1  - unused */
+        0, /* Slot 2  - unused */
+        0, /* Slot 3  - unused */
+        0, /* Slot 4  - unused */
+        0, /* Slot 5  - unused */
+        0, /* Slot 6  - unused */
+        0, /* Slot 7  - unused */
+        0, /* Slot 8  - unused */
+        0, /* Slot 9  - unused */
+        0, /* Slot 10 - unused */
+        0, /* Slot 11 - FireCoral */
+        4, /* Slot 12 - Ethernet  PCIINTD# */
+        2, /* Slot 13 - PCI Slot #2 */
+        2, /* Slot 14 - S3 Video PCIINTD# */
+        0, /* Slot 15 - onboard SCSI (INDI) [1] */
+        3, /* Slot 16 - NCR58C810 RS6000 Only PCIINTC# */
+        0, /* Slot 17 - unused */
+        2, /* Slot 18 - PCI Slot 2 PCIINTx# (See below) */
+        0, /* Slot 19 - unused */
+        0, /* Slot 20 - unused */
+        0, /* Slot 21 - unused */
+        2, /* Slot 22 - PCI slot 1 PCIINTx# (See below) */
+};
+
+static char ibm8xx_pci_IRQ_routes[] __prepdata = {
+        0,      /* Line 0 - unused */
+        15,     /* Line 1 */
+        15,     /* Line 2 */
+        15,     /* Line 3 */
+        15,     /* Line 4 */
+};
+
+/*
+ * a 6015 ibm board
+ * -- Cort
+ */
+static char ibm6015_pci_IRQ_map[23] __prepdata = {
+        0, /* Slot 0  - unused */
+        0, /* Slot 1  - unused */
+        0, /* Slot 2  - unused */
+        0, /* Slot 3  - unused */
+        0, /* Slot 4  - unused */
+        0, /* Slot 5  - unused */
+        0, /* Slot 6  - unused */
+        0, /* Slot 7  - unused */
+        0, /* Slot 8  - unused */
+        0, /* Slot 9  - unused */
+        0, /* Slot 10 - unused */
+        0, /* Slot 11 -  */
+        1, /* Slot 12 - SCSI */
+        2, /* Slot 13 -  */
+        2, /* Slot 14 -  */
+        1, /* Slot 15 -  */
+        1, /* Slot 16 -  */
+        0, /* Slot 17 -  */
+        2, /* Slot 18 -  */
+        0, /* Slot 19 -  */
+        0, /* Slot 20 -  */
+        0, /* Slot 21 -  */
+        2, /* Slot 22 -  */
+};
+
+static char ibm6015_pci_IRQ_routes[] __prepdata = {
+        0,      /* Line 0 - unused */
+        13,     /* Line 1 */
+        15,     /* Line 2 */
+        15,     /* Line 3 */
+        15,     /* Line 4 */
+};
+
+
+/* IBM Nobis and Thinkpad 850 */
+static char Nobis_pci_IRQ_map[23] __prepdata ={
+        0, /* Slot 0  - unused */
+        0, /* Slot 1  - unused */
+        0, /* Slot 2  - unused */
+        0, /* Slot 3  - unused */
+        0, /* Slot 4  - unused */
+        0, /* Slot 5  - unused */
+        0, /* Slot 6  - unused */
+        0, /* Slot 7  - unused */
+        0, /* Slot 8  - unused */
+        0, /* Slot 9  - unused */
+        0, /* Slot 10 - unused */
+        0, /* Slot 11 - unused */
+        3, /* Slot 12 - SCSI */
+        0, /* Slot 13 - unused */
+        0, /* Slot 14 - unused */
+        0, /* Slot 15 - unused */
+};
+
+static char Nobis_pci_IRQ_routes[] __prepdata = {
+        0, /* Line 0 - Unused */
+        13, /* Line 1 */
+        13, /* Line 2 */
+        13, /* Line 3 */
+        13      /* Line 4 */
+};
+
+/*
+ * IBM RS/6000 43p/140  -- paulus
+ * XXX we should get all this from the residual data
+ */
+static char ibm43p_pci_IRQ_map[23] __prepdata = {
+        0, /* Slot 0  - unused */
+        0, /* Slot 1  - unused */
+        0, /* Slot 2  - unused */
+        0, /* Slot 3  - unused */
+        0, /* Slot 4  - unused */
+        0, /* Slot 5  - unused */
+        0, /* Slot 6  - unused */
+        0, /* Slot 7  - unused */
+        0, /* Slot 8  - unused */
+        0, /* Slot 9  - unused */
+        0, /* Slot 10 - unused */
+        0, /* Slot 11 - FireCoral ISA bridge */
+        6, /* Slot 12 - Ethernet  */
+        0, /* Slot 13 - openpic */
+        0, /* Slot 14 - unused */
+        0, /* Slot 15 - unused */
+        7, /* Slot 16 - NCR58C825a onboard scsi */
+        0, /* Slot 17 - unused */
+        2, /* Slot 18 - PCI Slot 2 PCIINTx# (See below) */
+        0, /* Slot 19 - unused */
+        0, /* Slot 20 - unused */
+        0, /* Slot 21 - unused */
+        1, /* Slot 22 - PCI slot 1 PCIINTx# (See below) */
+};
+
+static char ibm43p_pci_IRQ_routes[] __prepdata = {
+        0,      /* Line 0 - unused */
+        15,     /* Line 1 */
+        15,     /* Line 2 */
+        15,     /* Line 3 */
+        15,     /* Line 4 */
+};
+
+/* Motorola PowerPlus architecture PCI IRQ tables */
+/* Interrupt line values for INTA-D on primary/secondary MPIC inputs */
+
+struct powerplus_irq_list
+{
+	unsigned char primary[4];       /* INT A-D */
+	unsigned char secondary[4];     /* INT A-D */
+};
+
+/*
+ * For standard PowerPlus boards, bus 0 PCI INTs A-D are routed to
+ * OpenPIC inputs 9-12.  PCI INTs A-D from the on board P2P bridge
+ * are routed to OpenPIC inputs 5-8.  These values are offset by
+ * 16 in the table to reflect the Linux kernel interrupt value.
+ */
+struct powerplus_irq_list Powerplus_pci_IRQ_list __prepdata =
+{
+	{25, 26, 27, 28},
+	{21, 22, 23, 24}
+};
+
+/*
+ * For the MCP750 (system slot board), cPCI INTs A-D are routed to
+ * OpenPIC inputs 8-11 and the PMC INTs A-D are routed to OpenPIC
+ * input 3.  On a hot swap MCP750, the companion card PCI INTs A-D
+ * are routed to OpenPIC inputs 12-15. These values are offset by
+ * 16 in the table to reflect the Linux kernel interrupt value.
+ */
+struct powerplus_irq_list Mesquite_pci_IRQ_list __prepdata =
+{
+	{24, 25, 26, 27},
+	{28, 29, 30, 31}
+};
+
+/*
+ * This table represents the standard PCI swizzle defined in the
+ * PCI bus specification.
+ */
+static unsigned char prep_pci_intpins[4][4] __prepdata =
+{
+	{ 1, 2, 3, 4},  /* Buses 0, 4, 8, ... */
+	{ 2, 3, 4, 1},  /* Buses 1, 5, 9, ... */
+	{ 3, 4, 1, 2},  /* Buses 2, 6, 10 ... */
+	{ 4, 1, 2, 3},  /* Buses 3, 7, 11 ... */
+};
+
+/* We have to turn on LEVEL mode for changed IRQ's */
+/* All PCI IRQ's need to be level mode, so this should be something
+ * other than hard-coded as well... IRQ's are individually mappable
+ * to either edge or level.
+ */
+
+/*
+ * 8259 edge/level control definitions
+ */
+#define ISA8259_M_ELCR 0x4d0
+#define ISA8259_S_ELCR 0x4d1
+
+#define ELCRS_INT15_LVL         0x80
+#define ELCRS_INT14_LVL         0x40
+#define ELCRS_INT12_LVL         0x10
+#define ELCRS_INT11_LVL         0x08
+#define ELCRS_INT10_LVL         0x04
+#define ELCRS_INT9_LVL          0x02
+#define ELCRS_INT8_LVL          0x01
+#define ELCRM_INT7_LVL          0x80
+#define ELCRM_INT5_LVL          0x20
+
+#if 0
+/*
+ * PCI config space access.
+ */
+#define CFGADDR(dev)	((1<<(dev>>3)) | ((dev&7)<<8))
+#define DEVNO(dev)	(dev>>3)
+
+#define MIN_DEVNR	11
+#define MAX_DEVNR	22
+
+static int __prep
+prep_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
+		 int len, u32 *val)
+{
+	struct pci_controller *hose = bus->sysdata;
+	volatile void __iomem *cfg_data;
+
+	if (bus->number != 0 || DEVNO(devfn) < MIN_DEVNR
+	    || DEVNO(devfn) > MAX_DEVNR)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	/*
+	 * Note: the caller has already checked that offset is
+	 * suitably aligned and that len is 1, 2 or 4.
+	 */
+	cfg_data = hose->cfg_data + CFGADDR(devfn) + offset;
+	switch (len) {
+	case 1:
+		*val = in_8(cfg_data);
+		break;
+	case 2:
+		*val = in_le16(cfg_data);
+		break;
+	default:
+		*val = in_le32(cfg_data);
+		break;
+	}
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int __prep
+prep_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
+		  int len, u32 val)
+{
+	struct pci_controller *hose = bus->sysdata;
+	volatile void __iomem *cfg_data;
+
+	if (bus->number != 0 || DEVNO(devfn) < MIN_DEVNR
+	    || DEVNO(devfn) > MAX_DEVNR)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	/*
+	 * Note: the caller has already checked that offset is
+	 * suitably aligned and that len is 1, 2 or 4.
+	 */
+	cfg_data = hose->cfg_data + CFGADDR(devfn) + offset;
+	switch (len) {
+	case 1:
+		out_8(cfg_data, val);
+		break;
+	case 2:
+		out_le16(cfg_data, val);
+		break;
+	default:
+		out_le32(cfg_data, val);
+		break;
+	}
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops prep_pci_ops =
+{
+	prep_read_config,
+	prep_write_config
+};
+#endif
+
+#define MOTOROLA_CPUTYPE_REG	0x800
+#define MOTOROLA_BASETYPE_REG	0x803
+#define MPIC_RAVEN_ID		0x48010000
+#define	MPIC_HAWK_ID		0x48030000
+#define	MOT_PROC2_BIT		0x800
+
+static u_char prep_openpic_initsenses[] __initdata = {
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* MVME2600_INT_SIO */
+    (IRQ_SENSE_EDGE  | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_FALCN_ECC_ERR */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_ETHERNET */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_SCSI */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_GRAPHICS */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_VME0 */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_VME1 */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_VME2 */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_VME3 */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_INTA */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_INTB */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_INTC */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_INTD */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_LM_SIG0 */
+    (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_LM_SIG1 */
+};
+
+#define MOT_RAVEN_PRESENT	0x1
+#define MOT_HAWK_PRESENT	0x2
+
+int mot_entry = -1;
+int prep_keybd_present = 1;
+int MotMPIC;
+int mot_multi;
+
+int __init
+raven_init(void)
+{
+	unsigned int	devid;
+	unsigned int	pci_membase;
+	unsigned char	base_mod;
+
+	/* Check to see if the Raven chip exists. */
+	if ( _prep_type != _PREP_Motorola) {
+		OpenPIC_Addr = NULL;
+		return 0;
+	}
+
+	/* Check to see if this board is a type that might have a Raven. */
+	if ((inb(MOTOROLA_CPUTYPE_REG) & 0xF0) != 0xE0) {
+		OpenPIC_Addr = NULL;
+		return 0;
+	}
+
+	/* Check the first PCI device to see if it is a Raven. */
+	early_read_config_dword(NULL, 0, 0, PCI_VENDOR_ID, &devid);
+
+	switch (devid & 0xffff0000) {
+	case MPIC_RAVEN_ID:
+		MotMPIC = MOT_RAVEN_PRESENT;
+		break;
+	case MPIC_HAWK_ID:
+		MotMPIC = MOT_HAWK_PRESENT;
+		break;
+	default:
+		OpenPIC_Addr = NULL;
+		return 0;
+	}
+
+
+	/* Read the memory base register. */
+	early_read_config_dword(NULL, 0, 0, PCI_BASE_ADDRESS_1, &pci_membase);
+
+	if (pci_membase == 0) {
+		OpenPIC_Addr = NULL;
+		return 0;
+	}
+
+	/* Map the Raven MPIC registers to virtual memory. */
+	OpenPIC_Addr = ioremap(pci_membase+0xC0000000, 0x22000);
+
+	OpenPIC_InitSenses = prep_openpic_initsenses;
+	OpenPIC_NumInitSenses = sizeof(prep_openpic_initsenses);
+
+	ppc_md.get_irq = openpic_get_irq;
+
+	/* If raven is present on Motorola store the system config register
+	 * for later use.
+	 */
+	ProcInfo = (unsigned long *)ioremap(0xfef80400, 4);
+
+	/* Indicate to system if this is a multiprocessor board */
+	if (!(*ProcInfo & MOT_PROC2_BIT)) {
+		mot_multi = 1;
+	}
+
+	/* This is a hack.  If this is a 2300 or 2400 mot board then there is
+	 * no keyboard controller and we have to indicate that.
+	 */
+	base_mod = inb(MOTOROLA_BASETYPE_REG);
+	if ((MotMPIC == MOT_HAWK_PRESENT) || (base_mod == 0xF9) ||
+	    (base_mod == 0xFA) || (base_mod == 0xE1))
+		prep_keybd_present = 0;
+
+	return 1;
+}
+
+struct mot_info {
+	int		cpu_type;	/* 0x100 mask assumes for Raven and Hawk boards that the level/edge are set */
+					/* 0x200 if this board has a Hawk chip. */
+	int		base_type;
+	int		max_cpu;	/* ored with 0x80 if this board should be checked for multi CPU */
+	const char	*name;
+	unsigned char	*map;
+	unsigned char	*routes;
+	void            (*map_non0_bus)(struct pci_dev *);      /* For boards with more than bus 0 devices. */
+	struct powerplus_irq_list *pci_irq_list; /* List of PCI MPIC inputs */
+	unsigned char   secondary_bridge_devfn; /* devfn of secondary bus transparent bridge */
+} mot_info[] __prepdata = {
+	{0x300, 0x00, 0x00, "MVME 2400",			Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
+	{0x010, 0x00, 0x00, "Genesis",				Genesis_pci_IRQ_map,	Genesis_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
+	{0x020, 0x00, 0x00, "Powerstack (Series E)",		Comet_pci_IRQ_map,	Comet_pci_IRQ_routes, NULL, NULL, 0x00},
+	{0x040, 0x00, 0x00, "Blackhawk (Powerstack)",		Blackhawk_pci_IRQ_map,	Blackhawk_pci_IRQ_routes, NULL, NULL, 0x00},
+	{0x050, 0x00, 0x00, "Omaha (PowerStack II Pro3000)",	Omaha_pci_IRQ_map,	Omaha_pci_IRQ_routes, NULL, NULL, 0x00},
+	{0x060, 0x00, 0x00, "Utah (Powerstack II Pro4000)",	Utah_pci_IRQ_map,	Utah_pci_IRQ_routes, NULL, NULL, 0x00},
+	{0x0A0, 0x00, 0x00, "Powerstack (Series EX)",		Comet2_pci_IRQ_map,	Comet2_pci_IRQ_routes, NULL, NULL, 0x00},
+	{0x1E0, 0xE0, 0x00, "Mesquite cPCI (MCP750)",		Mesquite_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Mesquite_pci_IRQ_list, 0xFF},
+	{0x1E0, 0xE1, 0x00, "Sitka cPCI (MCPN750)",		Sitka_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
+	{0x1E0, 0xE2, 0x00, "Mesquite cPCI (MCP750) w/ HAC",	Mesquite_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Mesquite_pci_IRQ_list, 0xC0},
+	{0x1E0, 0xF6, 0x80, "MTX Plus",				MTXplus_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xA0},
+	{0x1E0, 0xF6, 0x81, "Dual MTX Plus",			MTXplus_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xA0},
+	{0x1E0, 0xF7, 0x80, "MTX wo/ Parallel Port",		MTX_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
+	{0x1E0, 0xF7, 0x81, "Dual MTX wo/ Parallel Port",	MTX_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
+	{0x1E0, 0xF8, 0x80, "MTX w/ Parallel Port",		MTX_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
+	{0x1E0, 0xF8, 0x81, "Dual MTX w/ Parallel Port",	MTX_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
+	{0x1E0, 0xF9, 0x00, "MVME 2300",			Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
+	{0x1E0, 0xFA, 0x00, "MVME 2300SC/2600",			Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
+	{0x1E0, 0xFB, 0x00, "MVME 2600 with MVME712M",		Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
+	{0x1E0, 0xFC, 0x00, "MVME 2600/2700 with MVME761",	Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
+	{0x1E0, 0xFD, 0x80, "MVME 3600 with MVME712M",		Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
+	{0x1E0, 0xFD, 0x81, "MVME 4600 with MVME712M",		Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
+	{0x1E0, 0xFE, 0x80, "MVME 3600 with MVME761",		Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
+	{0x1E0, 0xFE, 0x81, "MVME 4600 with MVME761",		Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
+	{0x1E0, 0xFF, 0x00, "MVME 1600-001 or 1600-011",	Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
+	{0x000, 0x00, 0x00, "",					NULL,			NULL, NULL, NULL, 0x00}
+};
+
+void __init
+ibm_prep_init(void)
+{
+	if (have_residual_data) {
+		u32 addr, real_addr, len, offset;
+		PPC_DEVICE *mpic;
+		PnP_TAG_PACKET *pkt;
+
+		/* Use the PReP residual data to determine if an OpenPIC is
+		 * present.  If so, get the large vendor packet which will
+		 * tell us the base address and length in memory.
+		 * If we are successful, ioremap the memory area and set
+		 * OpenPIC_Addr (this indicates that the OpenPIC was found).
+		 */
+		mpic = residual_find_device(-1, NULL, SystemPeripheral,
+				    ProgrammableInterruptController, MPIC, 0);
+		if (!mpic)
+			return;
+
+		pkt = PnP_find_large_vendor_packet(res->DevicePnPHeap +
+				mpic->AllocatedOffset, 9, 0);
+
+		if (!pkt)
+			return;
+
+#define p pkt->L4_Pack.L4_Data.L4_PPCPack
+	 	if (p.PPCData[1] == 32) {
+			switch (p.PPCData[0]) {
+				case 1:  offset = PREP_ISA_IO_BASE;  break;
+				case 2:  offset = PREP_ISA_MEM_BASE; break;
+				default: return; /* Not I/O or memory?? */
+			}
+		}
+		else
+			return; /* Not a 32-bit address */
+
+		real_addr = ld_le32((unsigned int *) (p.PPCData + 4));
+		if (real_addr == 0xffffffff)
+			return;
+
+		/* Adjust address to be as seen by CPU */
+		addr = real_addr + offset;
+
+		len = ld_le32((unsigned int *) (p.PPCData + 12));
+		if (!len)
+			return;
+#undef p
+		OpenPIC_Addr = ioremap(addr, len);
+		ppc_md.get_irq = openpic_get_irq;
+
+		OpenPIC_InitSenses = prep_openpic_initsenses;
+		OpenPIC_NumInitSenses = sizeof(prep_openpic_initsenses);
+
+		printk(KERN_INFO "MPIC at 0x%08x (0x%08x), length 0x%08x "
+		       "mapped to 0x%p\n", addr, real_addr, len, OpenPIC_Addr);
+	}
+}
+
+static void __init
+ibm43p_pci_map_non0(struct pci_dev *dev)
+{
+	unsigned char intpin;
+	static unsigned char bridge_intrs[4] = { 3, 4, 5, 8 };
+
+	if (dev == NULL)
+		return;
+	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &intpin);
+	if (intpin < 1 || intpin > 4)
+		return;
+	intpin = (PCI_SLOT(dev->devfn) + intpin - 1) & 3;
+	dev->irq = openpic_to_irq(bridge_intrs[intpin]);
+	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
+}
+
+void __init
+prep_residual_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi)
+{
+	if (have_residual_data) {
+		Motherboard_map_name = res->VitalProductData.PrintableModel;
+		Motherboard_map = NULL;
+		Motherboard_routes = NULL;
+		residual_irq_mask(irq_edge_mask_lo, irq_edge_mask_hi);
+	}
+}
+
+void __init
+prep_sandalfoot_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi)
+{
+	Motherboard_map_name = "IBM 6015/7020 (Sandalfoot/Sandalbow)";
+	Motherboard_map = ibm6015_pci_IRQ_map;
+	Motherboard_routes = ibm6015_pci_IRQ_routes;
+	*irq_edge_mask_lo = 0x00; /* irq's 0-7 all edge-triggered */
+	*irq_edge_mask_hi = 0xA0; /* irq's 13, 15 level-triggered */
+}
+
+void __init
+prep_thinkpad_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi)
+{
+	Motherboard_map_name = "IBM Thinkpad 850/860";
+	Motherboard_map = Nobis_pci_IRQ_map;
+	Motherboard_routes = Nobis_pci_IRQ_routes;
+	*irq_edge_mask_lo = 0x00; /* irq's 0-7 all edge-triggered */
+	*irq_edge_mask_hi = 0xA0; /* irq's 13, 15 level-triggered */
+}
+
+void __init
+prep_carolina_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi)
+{
+	Motherboard_map_name = "IBM 7248, PowerSeries 830/850 (Carolina)";
+	Motherboard_map = ibm8xx_pci_IRQ_map;
+	Motherboard_routes = ibm8xx_pci_IRQ_routes;
+	*irq_edge_mask_lo = 0x00; /* irq's 0-7 all edge-triggered */
+	*irq_edge_mask_hi = 0xA4; /* irq's 10, 13, 15 level-triggered */
+}
+
+void __init
+prep_tiger1_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi)
+{
+	Motherboard_map_name = "IBM 43P-140 (Tiger1)";
+	Motherboard_map = ibm43p_pci_IRQ_map;
+	Motherboard_routes = ibm43p_pci_IRQ_routes;
+	Motherboard_non0 = ibm43p_pci_map_non0;
+	*irq_edge_mask_lo = 0x00; /* irq's 0-7 all edge-triggered */
+	*irq_edge_mask_hi = 0xA0; /* irq's 13, 15 level-triggered */
+}
+
+void __init
+prep_route_pci_interrupts(void)
+{
+	unsigned char *ibc_pirq = (unsigned char *)0x80800860;
+	unsigned char *ibc_pcicon = (unsigned char *)0x80800840;
+	int i;
+
+	if ( _prep_type == _PREP_Motorola)
+	{
+		unsigned short irq_mode;
+		unsigned char  cpu_type;
+		unsigned char  base_mod;
+		int	       entry;
+
+		cpu_type = inb(MOTOROLA_CPUTYPE_REG) & 0xF0;
+		base_mod = inb(MOTOROLA_BASETYPE_REG);
+
+		for (entry = 0; mot_info[entry].cpu_type != 0; entry++) {
+			if (mot_info[entry].cpu_type & 0x200) {		 	/* Check for Hawk chip */
+				if (!(MotMPIC & MOT_HAWK_PRESENT))
+					continue;
+			} else {						/* Check non hawk boards */
+				if ((mot_info[entry].cpu_type & 0xff) != cpu_type)
+					continue;
+
+				if (mot_info[entry].base_type == 0) {
+					mot_entry = entry;
+					break;
+				}
+
+				if (mot_info[entry].base_type != base_mod)
+					continue;
+			}
+
+			if (!(mot_info[entry].max_cpu & 0x80)) {
+				mot_entry = entry;
+				break;
+			}
+
+			/* processor 1 not present and max processor zero indicated */
+			if ((*ProcInfo & MOT_PROC2_BIT) && !(mot_info[entry].max_cpu & 0x7f)) {
+				mot_entry = entry;
+				break;
+			}
+
+			/* processor 1 present and max processor zero indicated */
+			if (!(*ProcInfo & MOT_PROC2_BIT) && (mot_info[entry].max_cpu & 0x7f)) {
+				mot_entry = entry;
+				break;
+			}
+		}
+
+		if (mot_entry == -1) 	/* No particular cpu type found - assume Blackhawk */
+			mot_entry = 3;
+
+		Motherboard_map_name = (unsigned char *)mot_info[mot_entry].name;
+		Motherboard_map = mot_info[mot_entry].map;
+		Motherboard_routes = mot_info[mot_entry].routes;
+		Motherboard_non0 = mot_info[mot_entry].map_non0_bus;
+
+		if (!(mot_info[entry].cpu_type & 0x100)) {
+			/* AJF adjust level/edge control according to routes */
+			irq_mode = 0;
+			for (i = 1;  i <= 4;  i++)
+				irq_mode |= ( 1 << Motherboard_routes[i] );
+			outb( irq_mode & 0xff, 0x4d0 );
+			outb( (irq_mode >> 8) & 0xff, 0x4d1 );
+		}
+	} else if ( _prep_type == _PREP_IBM ) {
+		unsigned char irq_edge_mask_lo, irq_edge_mask_hi;
+		unsigned short irq_edge_mask;
+		int i;
+
+		setup_ibm_pci(&irq_edge_mask_lo, &irq_edge_mask_hi);
+
+		outb(inb(0x04d0)|irq_edge_mask_lo, 0x4d0); /* primary 8259 */
+		outb(inb(0x04d1)|irq_edge_mask_hi, 0x4d1); /* cascaded 8259 */
+
+		irq_edge_mask = (irq_edge_mask_hi << 8) | irq_edge_mask_lo;
+		for (i = 0; i < 16; ++i, irq_edge_mask >>= 1)
+			if (irq_edge_mask & 1)
+				irq_desc[i].status |= IRQ_LEVEL;
+	} else {
+		printk("No known machine pci routing!\n");
+		return;
+	}
+
+	/* Set up mapping from slots */
+	if (Motherboard_routes) {
+		for (i = 1;  i <= 4;  i++)
+			ibc_pirq[i-1] = Motherboard_routes[i];
+
+		/* Enable PCI interrupts */
+		*ibc_pcicon |= 0x20;
+	}
+}
+
+void __init
+prep_pib_init(void)
+{
+	unsigned char   reg;
+	unsigned short  short_reg;
+
+	struct pci_dev *dev = NULL;
+
+	if (( _prep_type == _PREP_Motorola) && (OpenPIC_Addr)) {
+		/*
+		 * Perform specific configuration for the Via Tech or
+		 * or Winbond PCI-ISA-Bridge part.
+		 */
+		if ((dev = pci_get_device(PCI_VENDOR_ID_VIA,
+					PCI_DEVICE_ID_VIA_82C586_1, dev))) {
+			/*
+			 * PPCBUG does not set the enable bits
+			 * for the IDE device. Force them on here.
+			 */
+			pci_read_config_byte(dev, 0x40, &reg);
+
+			reg |= 0x03; /* IDE: Chip Enable Bits */
+			pci_write_config_byte(dev, 0x40, reg);
+		}
+		if ((dev = pci_get_device(PCI_VENDOR_ID_VIA,
+						PCI_DEVICE_ID_VIA_82C586_2,
+						dev)) && (dev->devfn = 0x5a)) {
+			/* Force correct USB interrupt */
+			dev->irq = 11;
+			pci_write_config_byte(dev,
+					PCI_INTERRUPT_LINE,
+					dev->irq);
+		}
+		if ((dev = pci_get_device(PCI_VENDOR_ID_WINBOND,
+					PCI_DEVICE_ID_WINBOND_83C553, dev))) {
+			 /* Clear PCI Interrupt Routing Control Register. */
+			short_reg = 0x0000;
+			pci_write_config_word(dev, 0x44, short_reg);
+			if (OpenPIC_Addr){
+				/* Route IDE interrupts to IRQ 14 */
+				reg = 0xEE;
+				pci_write_config_byte(dev, 0x43, reg);
+			}
+		}
+		pci_dev_put(dev);
+	}
+
+	if ((dev = pci_get_device(PCI_VENDOR_ID_WINBOND,
+				   PCI_DEVICE_ID_WINBOND_82C105, dev))){
+		if (OpenPIC_Addr){
+			/*
+			 * Disable LEGIRQ mode so PCI INTS are routed
+			 * directly to the 8259 and enable both channels
+			 */
+			pci_write_config_dword(dev, 0x40, 0x10ff0033);
+
+			/* Force correct IDE interrupt */
+			dev->irq = 14;
+			pci_write_config_byte(dev,
+					PCI_INTERRUPT_LINE,
+					dev->irq);
+		} else {
+			/* Enable LEGIRQ for PCI INT -> 8259 IRQ routing */
+			pci_write_config_dword(dev, 0x40, 0x10ff08a1);
+		}
+	}
+	pci_dev_put(dev);
+}
+
+static void __init
+Powerplus_Map_Non0(struct pci_dev *dev)
+{
+	struct pci_bus  *pbus;          /* Parent bus structure pointer */
+	struct pci_dev  *tdev = dev;    /* Temporary device structure */
+	unsigned int    devnum;         /* Accumulated device number */
+	unsigned char   intline;        /* Linux interrupt value */
+	unsigned char   intpin;         /* PCI interrupt pin */
+
+	/* Check for valid PCI dev pointer */
+	if (dev == NULL) return;
+
+	/* Initialize bridge IDSEL variable */
+	devnum = PCI_SLOT(tdev->devfn);
+
+	/* Read the interrupt pin of the device and adjust for indexing */
+	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &intpin);
+
+	/* If device doesn't request an interrupt, return */
+	if ( (intpin < 1) || (intpin > 4) )
+		return;
+
+	intpin--;
+
+	/*
+	 * Walk up to bus 0, adjusting the interrupt pin for the standard
+	 * PCI bus swizzle.
+	 */
+	do {
+		intpin = (prep_pci_intpins[devnum % 4][intpin]) - 1;
+		pbus = tdev->bus;        /* up one level */
+		tdev = pbus->self;
+		devnum = PCI_SLOT(tdev->devfn);
+	} while(tdev->bus->number);
+
+	/* Use the primary interrupt inputs by default */
+	intline = mot_info[mot_entry].pci_irq_list->primary[intpin];
+
+	/*
+	 * If the board has secondary interrupt inputs, walk the bus and
+	 * note the devfn of the bridge from bus 0.  If it is the same as
+	 * the devfn of the bus bridge with secondary inputs, use those.
+	 * Otherwise, assume it's a PMC site and get the interrupt line
+	 * value from the interrupt routing table.
+	 */
+	if (mot_info[mot_entry].secondary_bridge_devfn) {
+		pbus = dev->bus;
+
+		while (pbus->primary != 0)
+			pbus = pbus->parent;
+
+		if ((pbus->self)->devfn != 0xA0) {
+			if ((pbus->self)->devfn == mot_info[mot_entry].secondary_bridge_devfn)
+				intline = mot_info[mot_entry].pci_irq_list->secondary[intpin];
+			else {
+				if ((char *)(mot_info[mot_entry].map) == (char *)Mesquite_pci_IRQ_map)
+					intline = mot_info[mot_entry].map[((pbus->self)->devfn)/8] + 16;
+				else {
+					int i;
+					for (i=0;i<3;i++)
+						intpin = (prep_pci_intpins[devnum % 4][intpin]) - 1;
+					intline = mot_info[mot_entry].pci_irq_list->primary[intpin];
+				}
+			}
+		}
+	}
+
+	/* Write calculated interrupt value to header and device list */
+	dev->irq = intline;
+	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, (u8)dev->irq);
+}
+
+void __init
+prep_pcibios_fixup(void)
+{
+        struct pci_dev *dev = NULL;
+	int irq;
+	int have_openpic = (OpenPIC_Addr != NULL);
+
+	prep_route_pci_interrupts();
+
+	printk("Setting PCI interrupts for a \"%s\"\n", Motherboard_map_name);
+
+	/* Iterate through all the PCI devices, setting the IRQ */
+	for_each_pci_dev(dev) {
+		/*
+		 * If we have residual data, then this is easy: query the
+		 * residual data for the IRQ line allocated to the device.
+		 * This works the same whether we have an OpenPic or not.
+		 */
+		if (have_residual_data) {
+			irq = residual_pcidev_irq(dev);
+			dev->irq = have_openpic ? openpic_to_irq(irq) : irq;
+		}
+		/*
+		 * If we don't have residual data, then we need to use
+		 * tables to determine the IRQ.  The table organisation
+		 * is different depending on whether there is an OpenPIC
+		 * or not.  The tables are only used for bus 0, so check
+		 * this first.
+		 */
+		else if (dev->bus->number == 0) {
+			irq = Motherboard_map[PCI_SLOT(dev->devfn)];
+			dev->irq = have_openpic ? openpic_to_irq(irq)
+						: Motherboard_routes[irq];
+		}
+		/*
+		 * Finally, if we don't have residual data and the bus is
+		 * non-zero, use the callback (if provided)
+		 */
+		else {
+			if (Motherboard_non0 != NULL)
+				Motherboard_non0(dev);
+
+			continue;
+		}
+
+		pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
+	}
+
+	/* Setup the Winbond or Via PIB */
+	prep_pib_init();
+}
+
+static void __init
+prep_pcibios_after_init(void)
+{
+#if 0
+	struct pci_dev *dev;
+
+	/* If there is a WD 90C, reset the IO BAR to 0x0 (it started that
+	 * way, but the PCI layer relocated it because it thought 0x0 was
+	 * invalid for a BAR).
+	 * If you don't do this, the card's VGA base will be <IO BAR>+0xc0000
+	 * instead of 0xc0000. vgacon.c (for example) is completely unaware of
+	 * this little quirk.
+	 */
+	dev = pci_get_device(PCI_VENDOR_ID_WD, PCI_DEVICE_ID_WD_90C, NULL);
+	if (dev) {
+		dev->resource[1].end -= dev->resource[1].start;
+		dev->resource[1].start = 0;
+		/* tell the hardware */
+		pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0x0);
+		pci_dev_put(dev);
+	}
+#endif
+}
+
+static void __init
+prep_init_resource(struct resource *res, unsigned long start,
+		   unsigned long end, int flags)
+{
+	res->flags = flags;
+	res->start = start;
+	res->end = end;
+	res->name = "PCI host bridge";
+	res->parent = NULL;
+	res->sibling = NULL;
+	res->child = NULL;
+}
+
+void __init
+prep_find_bridges(void)
+{
+	struct pci_controller* hose;
+
+	hose = pcibios_alloc_controller();
+	if (!hose)
+		return;
+
+	hose->first_busno = 0;
+	hose->last_busno = 0xff;
+	hose->pci_mem_offset = PREP_ISA_MEM_BASE;
+	hose->io_base_phys = PREP_ISA_IO_BASE;
+	hose->io_base_virt = ioremap(PREP_ISA_IO_BASE, 0x800000);
+	prep_init_resource(&hose->io_resource, 0, 0x007fffff, IORESOURCE_IO);
+	prep_init_resource(&hose->mem_resources[0], 0xc0000000, 0xfeffffff,
+			   IORESOURCE_MEM);
+	setup_indirect_pci(hose, PREP_ISA_IO_BASE + 0xcf8,
+			   PREP_ISA_IO_BASE + 0xcfc);
+
+	printk("PReP architecture\n");
+
+	if (have_residual_data) {
+		PPC_DEVICE *hostbridge;
+
+		hostbridge = residual_find_device(PROCESSORDEVICE, NULL,
+			BridgeController, PCIBridge, -1, 0);
+		if (hostbridge &&
+			((hostbridge->DeviceId.Interface == PCIBridgeIndirect) ||
+			 (hostbridge->DeviceId.Interface == PCIBridgeRS6K))) {
+			PnP_TAG_PACKET * pkt;
+			pkt = PnP_find_large_vendor_packet(
+				res->DevicePnPHeap+hostbridge->AllocatedOffset,
+				3, 0);
+			if(pkt) {
+#define p pkt->L4_Pack.L4_Data.L4_PPCPack
+				setup_indirect_pci(hose,
+					ld_le32((unsigned *) (p.PPCData)),
+					ld_le32((unsigned *) (p.PPCData+8)));
+#undef p
+			} else
+				setup_indirect_pci(hose, 0x80000cf8, 0x80000cfc);
+		}
+	}
+
+	ppc_md.pcibios_fixup = prep_pcibios_fixup;
+	ppc_md.pcibios_after_init = prep_pcibios_after_init;
+}