patch-2.3.7 linux/arch/arm/kernel/hw-ebsa285.c

• Lines: 162
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.6/linux/arch/arm/kernel/hw-ebsa285.c
• Orig date: Wed Dec 23 09:44:40 1998

diff -u --recursive --new-file v2.3.6/linux/arch/arm/kernel/hw-ebsa285.c linux/arch/arm/kernel/hw-ebsa285.c
@@ -1,161 +0,0 @@
-/*
- * arch/arm/kernel/hw-ebsa286.c
- *
- * EBSA285 hardware specific functions
- *
- * Copyright (C) 1998 Russell King, Phil Blundel
- */
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/ptrace.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-
-#include <asm/irq.h>
-#include <asm/system.h>
-
-extern int setup_arm_irq(int, struct irqaction *);
-
-extern void pci_set_cmd(struct pci_dev *dev, unsigned short clear, unsigned short set);
-extern void pci_set_base_addr(struct pci_dev *dev, int idx, unsigned int addr);
-extern void pci_set_irq_line(struct pci_dev *dev, unsigned int irq);
-
-static int irqmap_ebsa[] __initdata = { 9, 8, 18, 11 };
-static int irqmap_cats[] __initdata = { 18, 8, 9, 11 };
-
-__initfunc(static int ebsa_irqval(struct pci_dev *dev))
-{
-	unsigned char pin;
-	
-	pcibios_read_config_byte(dev->bus->number,
-				 dev->devfn,
-				 PCI_INTERRUPT_PIN,
-				 &pin);
-	
-	return irqmap_ebsa[(PCI_SLOT(dev->devfn) + pin) & 3];
-}
-
-__initfunc(static int cats_irqval(struct pci_dev *dev))
-{
-	if (dev->irq >= 128)
-		return 32 + (dev->irq & 0x1f);
-
-	switch (dev->irq) {
-	case 1:
-	case 2:
-	case 3:
-	case 4:
-		return irqmap_cats[dev->irq - 1];
-	case 0:
-		return 0;
-	}
-
-	printk("PCI: device %02x:%02x has unknown irq line %x\n",
-	       dev->bus->number, dev->devfn, dev->irq);
-	return 0;
-}
-
-__initfunc(void pcibios_fixup_ebsa285(struct pci_dev *dev))
-{
-	char cmd;
-
-	/* sort out the irq mapping for this device */
-	switch (machine_type) {
-	case MACH_TYPE_EBSA285:
-		dev->irq = ebsa_irqval(dev);
-		break;
-	case MACH_TYPE_CATS:
-		dev->irq = cats_irqval(dev);
-		break;
-	}
-
-	/* Turn on bus mastering - boot loader doesn't
-	 * - perhaps it should! - dag
-	 */
-	pci_read_config_byte(dev, PCI_COMMAND, &cmd);
-	pci_write_config_byte(dev, PCI_COMMAND, cmd | PCI_COMMAND_MASTER);
-}
-
-static void irq_pci_err(int irq, void *dev_id, struct pt_regs *regs)
-{
-	const char *err = "unknown";
-	unsigned long cmd = *(unsigned long *)0xfe000004 & 0xffff;
-	unsigned long ctrl = *(unsigned long *)0xfe00013c & 0xffffde07;
-	static unsigned long next_warn[7];
-	int idx = 6;
-
-	switch(irq) {
-	case IRQ_PCIPARITY:
-		*(unsigned long *)0xfe000004 = cmd | 1 << 31;
-		idx = 0;
-		err = "parity";
-		break;
-
-	case IRQ_PCITARGETABORT:
-		*(unsigned long *)0xfe000004 = cmd | 1 << 28;
-		idx = 1;
-		err = "target abort";
-		break;
-
-	case IRQ_PCIMASTERABORT:
-		*(unsigned long *)0xfe000004 = cmd | 1 << 29;
-		idx = 2;
-		err = "master abort";
-		break;
-
-	case IRQ_PCIDATAPARITY:
-		*(unsigned long *)0xfe000004 = cmd | 1 << 24;
-		idx = 3;
-		err = "data parity";
-		break;
-
-	case IRQ_DISCARDTIMER:
-		*(unsigned long *)0xfe00013c = ctrl | 1 << 8;
-		idx = 4;
-		err = "discard timer";
-		break;
-
-	case IRQ_SERR:
-		*(unsigned long *)0xfe00013c = ctrl | 1 << 3;
-		idx = 5;
-		err = "system";
-		break;
-	}
-	if (time_after_eq(jiffies, next_warn[idx])) {
-		next_warn[idx] = jiffies + 3 * HZ / 100;
-		printk(KERN_ERR "PCI %s error detected\n", err);
-	}
-}
-
-static struct irqaction irq_pci_error = {
-	irq_pci_err, SA_INTERRUPT, 0, "PCI error", NULL, NULL
-};
-
-__initfunc(void pcibios_init_ebsa285(void))
-{
-	setup_arm_irq(IRQ_PCIPARITY, &irq_pci_error);
-	setup_arm_irq(IRQ_PCITARGETABORT, &irq_pci_error);
-	setup_arm_irq(IRQ_PCIMASTERABORT, &irq_pci_error);
-	setup_arm_irq(IRQ_PCIDATAPARITY, &irq_pci_error);
-	setup_arm_irq(IRQ_DISCARDTIMER, &irq_pci_error);
-	setup_arm_irq(IRQ_SERR, &irq_pci_error);
-
-	/*
-	 * Map our SDRAM at a known address in PCI space, just in case
-	 * the firmware had other ideas.  Using a nonzero base is slightly
-	 * bizarre but apparently necessary to avoid problems with some
-	 * video cards.
-	 *
-	 * We should really only do this if the central function is enabled.
-	 */
-	*(unsigned long *)0xfe000010 = 0;
-	*(unsigned long *)0xfe000018 = 0xe0000000;
-	*(unsigned long *)0xfe0000f8 = 0;
-	*(unsigned long *)0xfe0000fc = 0;
-	*(unsigned long *)0xfe000100 = 0x01fc0000;
-	*(unsigned long *)0xfe000104 = 0;
-	*(unsigned long *)0xfe000108 = 0x80000000;
-	*(unsigned long *)0xfe000004 = 0x17;
-}