patch-2.4.20 linux-2.4.20/arch/ppc/kernel/prep_pci.c
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- Lines: 1272
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
linux-2.4.19/arch/ppc/kernel/prep_pci.c
- Orig date:
Mon Feb 25 11:37:55 2002
diff -urN linux-2.4.19/arch/ppc/kernel/prep_pci.c linux-2.4.20/arch/ppc/kernel/prep_pci.c
@@ -1,1271 +0,0 @@
-/*
- * BK Id: SCCS/s.prep_pci.c 1.33 12/20/01 15:36:12 trini
- */
-/*
- * 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/processor.h>
-#include <asm/irq.h>
-#include <asm/machdep.h>
-
-#include "pci.h"
-#include "open_pic.h"
-
-#define MAX_DEVNR 22
-
-/* 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 */
- 1, /* Slot 4 - Ethernet - DEC2114x */
- 0, /* Slot 5 - unused */
- 3, /* Slot 6 - PCI Card slot #1 */
- 4, /* 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 - Ethernet */
- 0, /* Slot 11 - Universe PCI - VME Bridge */
- 3, /* Slot 12 - unused */
- 0, /* Slot 13 - unused */
- 2, /* Slot 14 - SCSI */
- 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
-
-#define CFGPTR(dev) (0x80800000 | (1<<(dev>>3)) | ((dev&7)<<8) | offset)
-#define DEVNO(dev) (dev>>3)
-
-#define cfg_read(val, addr, type, op) *val = op((type)(addr))
-#define cfg_write(val, addr, type, op) op((type *)(addr), (val))
-
-#define cfg_read_bad(val, size) *val = bad_##size;
-#define cfg_write_bad(val, size)
-
-#define bad_byte 0xff
-#define bad_word 0xffff
-#define bad_dword 0xffffffffU
-
-#define PREP_PCI_OP(rw, size, type, op) \
-static int __prep \
-prep_##rw##_config_##size(struct pci_dev *dev, int offset, type val) \
-{ \
- if ((dev->bus->number != 0) || (DEVNO(dev->devfn) > MAX_DEVNR)) \
- { \
- cfg_##rw##_bad(val, size) \
- return PCIBIOS_DEVICE_NOT_FOUND; \
- } \
- cfg_##rw(val, CFGPTR(dev->devfn), type, op); \
- return PCIBIOS_SUCCESSFUL; \
-}
-
-PREP_PCI_OP(read, byte, u8 *, in_8)
-PREP_PCI_OP(read, word, u16 *, in_le16)
-PREP_PCI_OP(read, dword, u32 *, in_le32)
-PREP_PCI_OP(write, byte, u8, out_8)
-PREP_PCI_OP(write, word, u16, out_le16)
-PREP_PCI_OP(write, dword, u32, out_le32)
-
-static struct pci_ops prep_pci_ops =
-{
- prep_read_config_byte,
- prep_read_config_word,
- prep_read_config_dword,
- prep_write_config_byte,
- prep_write_config_word,
- prep_write_config_dword
-};
-
-#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 mvme2600_openpic_initsenses[] __initdata = {
- 1, /* MVME2600_INT_SIO */
- 0, /* MVME2600_INT_FALCN_ECC_ERR */
- 1, /* MVME2600_INT_PCI_ETHERNET */
- 1, /* MVME2600_INT_PCI_SCSI */
- 1, /* MVME2600_INT_PCI_GRAPHICS */
- 1, /* MVME2600_INT_PCI_VME0 */
- 1, /* MVME2600_INT_PCI_VME1 */
- 1, /* MVME2600_INT_PCI_VME2 */
- 1, /* MVME2600_INT_PCI_VME3 */
- 1, /* MVME2600_INT_PCI_INTA */
- 1, /* MVME2600_INT_PCI_INTB */
- 1, /* MVME2600_INT_PCI_INTC */
- 1, /* MVME2600_INT_PCI_INTD */
- 1, /* MVME2600_INT_LM_SIG0 */
- 1, /* 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(0, 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(0, 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 = mvme2600_openpic_initsenses;
- OpenPIC_NumInitSenses = sizeof(mvme2600_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)
-{
- u32 addr;
-#ifdef CONFIG_PREP_RESIDUAL
- PPC_DEVICE *mpic;
-#endif
-
- if (inb(0x0852) == 0xd5) {
- /* This is for the 43p-140 */
- early_read_config_dword(0, 0, PCI_DEVFN(13, 0),
- PCI_BASE_ADDRESS_0, &addr);
- if (addr != 0xffffffff
- && !(addr & PCI_BASE_ADDRESS_SPACE_IO)
- && (addr &= PCI_BASE_ADDRESS_MEM_MASK) != 0) {
- addr += PREP_ISA_MEM_BASE;
- OpenPIC_Addr = ioremap(addr, 0x40000);
- ppc_md.get_irq = openpic_get_irq;
- }
- }
-
-#ifdef CONFIG_PREP_RESIDUAL
- mpic = residual_find_device(-1, NULL, SystemPeripheral,
- ProgrammableInterruptController, MPIC, 0);
- if (mpic != NULL)
- printk("mpic = %p\n", mpic);
-#endif
-}
-
-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_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 planar_id = inb(0x0852);
- unsigned char irq_edge_mask_lo, irq_edge_mask_hi;
-
- printk("IBM ID: %08x\n", planar_id);
- switch(planar_id) {
- case 0xff:
- 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 */
- break;
- case 0xfc:
- 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 */
- break;
- case 0xd5:
- 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 */
- break;
- default:
- printk(KERN_ERR "Unknown IBM motherboard! Defaulting to Carolina.\n");
- case 0xf0: /* PowerSeries 830/850 */
- case 0xf1: /* PowerSeries 830/850 */
- case 0xf2: /* PowerSeries 830/850 */
- case 0xf4: /* 7248-43P */
- case 0xf5: /* 7248-43P */
- case 0xf6: /* 7248-43P */
- case 0xf7: /* 7248-43P (missing from Carolina Tech Spec) */
- Motherboard_map_name = "IBM PS830/PS850/7248 (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 */
- break;
- }
-
- outb(inb(0x04d0)|irq_edge_mask_lo, 0x04d0); /* primary 8259 */
- outb(inb(0x04d1)|irq_edge_mask_hi, 0x04d1); /* cascaded 8259 */
- } else {
- printk("No known machine pci routing!\n");
- return;
- }
-
- /* Set up mapping from slots */
- 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_find_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 |= 0x03; /* IDE: Chip Enable Bits */
- pci_write_config_byte(dev, 0x40, reg);
- }
- if ((dev = pci_find_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_find_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);
- }
- }
- }
-
- if ((dev = pci_find_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);
- }
- }
-}
-
-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 */
- pcibios_read_config_byte(dev->bus->number, dev->devfn,
- 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;
- extern unsigned char *Motherboard_map;
- extern unsigned char *Motherboard_routes;
- unsigned char i;
-
- prep_route_pci_interrupts();
-
- printk("Setting PCI interrupts for a \"%s\"\n", Motherboard_map_name);
- if (OpenPIC_Addr) {
- /* PCI interrupts are controlled by the OpenPIC */
- pci_for_each_dev(dev) {
- if (dev->bus->number == 0) {
- dev->irq = openpic_to_irq(Motherboard_map[PCI_SLOT(dev->devfn)]);
- pcibios_write_config_byte(dev->bus->number, dev->devfn, PCI_INTERRUPT_LINE, dev->irq);
- } else {
- if (Motherboard_non0 != NULL)
- Motherboard_non0(dev);
- }
- }
-
- /* Setup the Winbond or Via PIB */
- prep_pib_init();
-
- return;
- }
-
- pci_for_each_dev(dev) {
- /*
- * Use our old hard-coded kludge to figure out what
- * irq this device uses. This is necessary on things
- * without residual data. -- Cort
- */
- unsigned char d = PCI_SLOT(dev->devfn);
- dev->irq = Motherboard_routes[Motherboard_map[d]];
-
- for ( i = 0 ; i <= 5 ; i++ ) {
- /*
- * Relocate PCI I/O resources if necessary so the
- * standard 256MB BAT covers them.
- */
- if ( (pci_resource_flags(dev, i) & IORESOURCE_IO) &&
- (dev->resource[i].start > 0x10000000)) {
- printk("Relocating PCI address %lx -> %lx\n",
- dev->resource[i].start,
- (dev->resource[i].start &
- 0x00FFFFFF)| 0x01000000);
- dev->resource[i].start =
- (dev->resource[i].start & 0x00FFFFFF)
- | 0x01000000;
- pci_write_config_dword(dev,
- PCI_BASE_ADDRESS_0 + (i*0x4),
- dev->resource[i].start);
- dev->resource[i].end =
- (dev->resource[i].end & 0x00FFFFFF)
- | 0x01000000;
- }
- }
-#if 0
- /*
- * If we have residual data and if it knows about this
- * device ask it what the irq is.
- * -- Cort
- */
- ppcd = residual_find_device_id( ~0L, dev->device,
- -1,-1,-1, 0);
-#endif
- }
-}
-
-static void __init
-prep_pcibios_after_init(void)
-{
- 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_find_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);
- }
-}
-
-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 = (void *)0x80000000; /* see prep_map_io() */
- prep_init_resource(&hose->io_resource, 0, 0x0fffffff, IORESOURCE_IO);
- prep_init_resource(&hose->mem_resources[0], 0xc0000000, 0xfeffffff,
- IORESOURCE_MEM);
-
- printk("PReP architecture\n");
- {
-#ifdef CONFIG_PREP_RESIDUAL
- PPC_DEVICE *hostbridge;
-
- hostbridge = residual_find_device(PROCESSORDEVICE, NULL,
- BridgeController, PCIBridge, -1, 0);
- if (hostbridge &&
- hostbridge->DeviceId.Interface == PCIBridgeIndirect) {
- 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)));
- } else
- setup_indirect_pci(hose, 0x80000cf8, 0x80000cfc);
- } else
-#endif /* CONFIG_PREP_RESIDUAL */
- hose->ops = &prep_pci_ops;
- }
-
- ppc_md.pcibios_fixup = prep_pcibios_fixup;
- ppc_md.pcibios_after_init = prep_pcibios_after_init;
-}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)