Char: cyclades, create cy_pci_probe
Move probing code to separate function for easy pci probing conversion. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiri Slaby
Linus Torvalds
Родитель
2b1da41fb3
Коммит
58936d8d94
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@ -4698,7 +4698,8 @@ static int __init cy_detect_isa(void)
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#endif /* CONFIG_ISA */
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} /* cy_detect_isa */
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static void plx_init(void __iomem * addr, __u32 initctl)
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#ifdef CONFIG_PCI
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static void __devinit plx_init(void __iomem * addr, __u32 initctl)
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{
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/* Reset PLX */
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cy_writel(addr + initctl, readl(addr + initctl) | 0x40000000);
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@ -4800,6 +4801,340 @@ static int __devinit cy_init_Ze(unsigned long cy_pci_phys0,
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return 0;
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}
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static int __devinit cy_pci_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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unsigned char cyy_rev_id;
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unsigned char cy_pci_irq;
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__u32 cy_pci_phys0, cy_pci_phys2, mailbox;
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void __iomem *cy_pci_addr0, *cy_pci_addr2;
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unsigned int device_id;
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unsigned short j, cy_pci_nchan, plx_ver;
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int retval;
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retval = pci_enable_device(pdev);
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if (retval) {
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dev_err(&pdev->dev, "cannot enable device\n");
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return retval;
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}
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/* read PCI configuration area */
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cy_pci_irq = pdev->irq;
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cy_pci_phys0 = pci_resource_start(pdev, 0);
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cy_pci_phys2 = pci_resource_start(pdev, 2);
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pci_read_config_byte(pdev, PCI_REVISION_ID, &cyy_rev_id);
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device_id = pdev->device & ~PCI_DEVICE_ID_MASK;
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if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo ||
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device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
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#ifdef CY_PCI_DEBUG
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printk("Cyclom-Y/PCI (bus=0x0%x, pci_id=0x%x, ",
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pdev->bus->number, pdev->devfn);
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printk("rev_id=%d) IRQ%d\n",
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cyy_rev_id, (int)cy_pci_irq);
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printk("Cyclom-Y/PCI:found winaddr=0x%lx "
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"ctladdr=0x%lx\n",
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(ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
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#endif
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if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) {
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printk(" Warning: PCI I/O bit incorrectly "
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"set. Ignoring it...\n");
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pdev->resource[2].flags &= ~IORESOURCE_IO;
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}
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/* Although we don't use this I/O region, we should
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request it from the kernel anyway, to avoid problems
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with other drivers accessing it. */
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retval = pci_request_regions(pdev, "Cyclom-Y");
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if (retval) {
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printk(KERN_ERR "cyclades: failed to reserve "
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"PCI resources\n");
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return retval;
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}
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#if defined(__alpha__)
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if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo) { /* below 1M? */
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printk("Cyclom-Y/PCI (bus=0x0%x, pci_id=0x%x, ",
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pdev->bus->number, pdev->devfn);
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printk("rev_id=%d) IRQ%d\n",
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cyy_rev_id, (int)cy_pci_irq);
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printk("Cyclom-Y/PCI:found winaddr=0x%lx "
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"ctladdr=0x%lx\n",
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(ulong)cy_pci_phys2,
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(ulong)cy_pci_phys0);
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printk("Cyclom-Y/PCI not supported for low "
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"addresses in Alpha systems.\n");
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return -EIO;
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}
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#endif
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cy_pci_addr0 = pci_iomap(pdev, 0, CyPCI_Yctl);
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cy_pci_addr2 = pci_iomap(pdev, 2, CyPCI_Ywin);
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#ifdef CY_PCI_DEBUG
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printk("Cyclom-Y/PCI: relocate winaddr=0x%lx "
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"ctladdr=0x%lx\n",
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(u_long)cy_pci_addr2, (u_long)cy_pci_addr0);
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#endif
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cy_pci_nchan = (unsigned short)(CyPORTS_PER_CHIP *
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cyy_init_card(cy_pci_addr2, 1));
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if (cy_pci_nchan == 0) {
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printk("Cyclom-Y PCI host card with ");
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printk("no Serial-Modules at 0x%lx.\n",
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(ulong) cy_pci_phys2);
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return -EIO;
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}
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if ((cy_next_channel + cy_pci_nchan) > NR_PORTS) {
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printk("Cyclom-Y/PCI found at 0x%lx ",
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(ulong) cy_pci_phys2);
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printk("but no channels are available.\n");
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printk("Change NR_PORTS in cyclades.c and "
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"recompile kernel.\n");
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return -EIO;
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}
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/* fill the next cy_card structure available */
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for (j = 0; j < NR_CARDS; j++) {
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if (cy_card[j].base_addr == 0)
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break;
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}
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if (j == NR_CARDS) { /* no more cy_cards available */
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printk("Cyclom-Y/PCI found at 0x%lx ",
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(ulong) cy_pci_phys2);
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printk("but no more cards can be used.\n");
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printk("Change NR_CARDS in cyclades.c and "
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"recompile kernel.\n");
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return -EIO;
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}
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/* allocate IRQ */
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retval = request_irq(cy_pci_irq, cyy_interrupt,
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IRQF_SHARED, "Cyclom-Y", &cy_card[j]);
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if (retval) {
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printk("Cyclom-Y/PCI found at 0x%lx ",
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(ulong) cy_pci_phys2);
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printk("but could not allocate IRQ%d.\n",
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cy_pci_irq);
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return retval;
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}
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/* set cy_card */
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cy_card[j].base_phys = (ulong) cy_pci_phys2;
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cy_card[j].ctl_phys = (ulong) cy_pci_phys0;
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cy_card[j].base_addr = cy_pci_addr2;
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cy_card[j].ctl_addr = cy_pci_addr0;
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cy_card[j].irq = (int)cy_pci_irq;
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cy_card[j].bus_index = 1;
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cy_card[j].first_line = cy_next_channel;
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cy_card[j].num_chips = cy_pci_nchan / 4;
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cy_card[j].pdev = pdev;
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pci_set_drvdata(pdev, &cy_card[j]);
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/* enable interrupts in the PCI interface */
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plx_ver = readb(cy_pci_addr2 + CyPLX_VER) & 0x0f;
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switch (plx_ver) {
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case PLX_9050:
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cy_writeb(cy_pci_addr0 + 0x4c, 0x43);
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break;
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case PLX_9060:
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case PLX_9080:
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default: /* Old boards, use PLX_9060 */
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plx_init(cy_pci_addr0, 0x6c);
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/* For some yet unknown reason, once the PLX9060 reloads
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the EEPROM, the IRQ is lost and, thus, we have to
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re-write it to the PCI config. registers.
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This will remain here until we find a permanent
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fix. */
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pci_write_config_byte(pdev, PCI_INTERRUPT_LINE,
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cy_pci_irq);
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cy_writew(cy_pci_addr0 + 0x68,
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readw(cy_pci_addr0 + 0x68) | 0x0900);
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break;
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}
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/* print message */
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printk("Cyclom-Y/PCI #%d: 0x%lx-0x%lx, IRQ%d, ",
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j + 1, (ulong)cy_pci_phys2,
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(ulong) (cy_pci_phys2 + CyPCI_Ywin - 1),
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(int)cy_pci_irq);
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printk("%d channels starting from port %d.\n",
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cy_pci_nchan, cy_next_channel);
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cy_next_channel += cy_pci_nchan;
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} else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Lo) {
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/* print message */
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printk("Cyclades-Z/PCI (bus=0x0%x, pci_id=0x%x, ",
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pdev->bus->number, pdev->devfn);
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printk("rev_id=%d) IRQ%d\n",
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cyy_rev_id, (int)cy_pci_irq);
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printk("Cyclades-Z/PCI: found winaddr=0x%lx "
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"ctladdr=0x%lx\n",
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(ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
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printk("Cyclades-Z/PCI not supported for low "
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"addresses\n");
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return -EIO;
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} else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Hi) {
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#ifdef CY_PCI_DEBUG
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printk("Cyclades-Z/PCI (bus=0x0%x, pci_id=0x%x, ",
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pdev->bus->number, pdev->devfn);
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printk("rev_id=%d) IRQ%d\n",
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cyy_rev_id, (int)cy_pci_irq);
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printk("Cyclades-Z/PCI: found winaddr=0x%lx "
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"ctladdr=0x%lx\n",
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(ulong) cy_pci_phys2, (ulong) cy_pci_phys0);
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#endif
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cy_pci_addr0 = pci_iomap(pdev, 0, CyPCI_Zctl);
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/* Disable interrupts on the PLX before resetting it */
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cy_writew(cy_pci_addr0 + 0x68,
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readw(cy_pci_addr0 + 0x68) & ~0x0900);
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plx_init(cy_pci_addr0, 0x6c);
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/* For some yet unknown reason, once the PLX9060 reloads
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the EEPROM, the IRQ is lost and, thus, we have to
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re-write it to the PCI config. registers.
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This will remain here until we find a permanent
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fix. */
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pci_write_config_byte(pdev, PCI_INTERRUPT_LINE,
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cy_pci_irq);
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mailbox = (__u32)readl(&((struct RUNTIME_9060 __iomem *)
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cy_pci_addr0)->mail_box_0);
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if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) {
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printk(" Warning: PCI I/O bit incorrectly "
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"set. Ignoring it...\n");
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pdev->resource[2].flags &= ~IORESOURCE_IO;
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}
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/* Although we don't use this I/O region, we should
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request it from the kernel anyway, to avoid problems
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with other drivers accessing it. */
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retval = pci_request_regions(pdev, "Cyclades-Z");
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if (retval) {
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printk(KERN_ERR "cyclades: failed to reserve "
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"PCI resources\n");
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return retval;
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}
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if (mailbox == ZE_V1) {
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retval = cy_init_Ze(cy_pci_phys0, cy_pci_phys2,
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cy_pci_addr0, cy_pci_irq, pdev);
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return retval;
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} else {
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cy_pci_addr2 = pci_iomap(pdev, 2, CyPCI_Zwin);
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}
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#ifdef CY_PCI_DEBUG
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printk("Cyclades-Z/PCI: relocate winaddr=0x%lx "
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"ctladdr=0x%lx\n",
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(ulong) cy_pci_addr2, (ulong) cy_pci_addr0);
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if (mailbox == ZO_V1) {
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cy_writel(&((struct RUNTIME_9060 *)
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(cy_pci_addr0))->loc_addr_base,
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WIN_CREG);
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printk("Cyclades-8Zo/PCI: FPGA id %lx, ver "
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"%lx\n", (ulong) (0xff &
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readl(&((struct CUSTOM_REG *)
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(cy_pci_addr2))->fpga_id)),
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(ulong)(0xff &
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readl(&((struct CUSTOM_REG *)
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(cy_pci_addr2))->
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fpga_version)));
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cy_writel(&((struct RUNTIME_9060 *)
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(cy_pci_addr0))->loc_addr_base,
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WIN_RAM);
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} else {
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printk("Cyclades-Z/PCI: New Cyclades-Z board. "
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"FPGA not loaded\n");
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}
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#endif
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/* The following clears the firmware id word. This
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ensures that the driver will not attempt to talk to
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the board until it has been properly initialized.
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*/
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if ((mailbox == ZO_V1) || (mailbox == ZO_V2))
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cy_writel(cy_pci_addr2 + ID_ADDRESS, 0L);
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/* This must be a Cyclades-8Zo/PCI. The extendable
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version will have a different device_id and will
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be allocated its maximum number of ports. */
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cy_pci_nchan = 8;
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if ((cy_next_channel + cy_pci_nchan) > NR_PORTS) {
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printk("Cyclades-8Zo/PCI found at 0x%lx but"
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"no channels are available.\nChange "
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"NR_PORTS in cyclades.c and recompile "
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"kernel.\n", (ulong)cy_pci_phys2);
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return -EIO;
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}
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/* fill the next cy_card structure available */
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for (j = 0; j < NR_CARDS; j++) {
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if (cy_card[j].base_addr == 0)
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break;
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}
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if (j == NR_CARDS) { /* no more cy_cards available */
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printk("Cyclades-8Zo/PCI found at 0x%lx but"
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"no more cards can be used.\nChange "
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"NR_CARDS in cyclades.c and recompile "
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"kernel.\n", (ulong)cy_pci_phys2);
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return -EIO;
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}
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#ifdef CONFIG_CYZ_INTR
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/* allocate IRQ only if board has an IRQ */
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if ((cy_pci_irq != 0) && (cy_pci_irq != 255)) {
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retval = request_irq(cy_pci_irq, cyz_interrupt,
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IRQF_SHARED, "Cyclades-Z",
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&cy_card[j]);
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if (retval) {
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printk("Cyclom-8Zo/PCI found at 0x%lx "
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"but could not allocate "
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"IRQ%d.\n", (ulong)cy_pci_phys2,
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cy_pci_irq);
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return retval;
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}
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}
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#endif /* CONFIG_CYZ_INTR */
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/* set cy_card */
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cy_card[j].base_phys = cy_pci_phys2;
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cy_card[j].ctl_phys = cy_pci_phys0;
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cy_card[j].base_addr = cy_pci_addr2;
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cy_card[j].ctl_addr = cy_pci_addr0;
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cy_card[j].irq = (int)cy_pci_irq;
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cy_card[j].bus_index = 1;
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cy_card[j].first_line = cy_next_channel;
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cy_card[j].num_chips = -1;
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cy_card[j].pdev = pdev;
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pci_set_drvdata(pdev, &cy_card[j]);
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/* print message */
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#ifdef CONFIG_CYZ_INTR
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/* don't report IRQ if board is no IRQ */
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if ((cy_pci_irq != 0) && (cy_pci_irq != 255))
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printk("Cyclades-8Zo/PCI #%d: 0x%lx-0x%lx, "
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"IRQ%d, ", j + 1, (ulong)cy_pci_phys2,
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(ulong) (cy_pci_phys2 + CyPCI_Zwin - 1),
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(int)cy_pci_irq);
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else
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#endif /* CONFIG_CYZ_INTR */
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printk("Cyclades-8Zo/PCI #%d: 0x%lx-0x%lx, ",
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j + 1, (ulong)cy_pci_phys2,
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(ulong)(cy_pci_phys2 + CyPCI_Zwin - 1));
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printk("%d channels starting from port %d.\n",
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cy_pci_nchan, cy_next_channel);
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cy_next_channel += cy_pci_nchan;
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}
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return 0;
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}
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#endif
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/*
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* ---------------------------------------------------------------------
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* cy_detect_pci() - Test PCI bus presence and Cyclom-Ye/PCI.
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@ -4809,16 +5144,8 @@ static int __devinit cy_init_Ze(unsigned long cy_pci_phys0,
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static int __init cy_detect_pci(void)
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{
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#ifdef CONFIG_PCI
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struct pci_dev *pdev = NULL;
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unsigned char cyy_rev_id;
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unsigned char cy_pci_irq = 0;
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__u32 cy_pci_phys0, cy_pci_phys2;
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void __iomem *cy_pci_addr0, *cy_pci_addr2;
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unsigned short i, j, cy_pci_nchan, plx_ver;
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unsigned short device_id, dev_index = 0;
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__u32 mailbox;
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int retval;
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unsigned int i, device_id, dev_index = 0;
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for (i = 0; i < NR_CARDS; i++) {
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/* look for a Cyclades card by vendor and device id */
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@ -4834,321 +5161,7 @@ static int __init cy_detect_pci(void)
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if (device_id == 0)
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break;
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if (pci_enable_device(pdev))
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continue;
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/* read PCI configuration area */
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cy_pci_irq = pdev->irq;
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cy_pci_phys0 = pci_resource_start(pdev, 0);
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cy_pci_phys2 = pci_resource_start(pdev, 2);
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pci_read_config_byte(pdev, PCI_REVISION_ID, &cyy_rev_id);
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device_id &= ~PCI_DEVICE_ID_MASK;
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if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo ||
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device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
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#ifdef CY_PCI_DEBUG
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printk("Cyclom-Y/PCI (bus=0x0%x, pci_id=0x%x, ",
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pdev->bus->number, pdev->devfn);
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printk("rev_id=%d) IRQ%d\n",
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cyy_rev_id, (int)cy_pci_irq);
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printk("Cyclom-Y/PCI:found winaddr=0x%lx "
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"ctladdr=0x%lx\n",
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(ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
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#endif
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if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) {
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printk(" Warning: PCI I/O bit incorrectly "
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"set. Ignoring it...\n");
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pdev->resource[2].flags &= ~IORESOURCE_IO;
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}
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||||
|
||||
/* Although we don't use this I/O region, we should
|
||||
request it from the kernel anyway, to avoid problems
|
||||
with other drivers accessing it. */
|
||||
if (pci_request_regions(pdev, "Cyclom-Y") != 0) {
|
||||
printk(KERN_ERR "cyclades: failed to reserve "
|
||||
"PCI resources\n");
|
||||
continue;
|
||||
}
|
||||
#if defined(__alpha__)
|
||||
if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo) { /* below 1M? */
|
||||
printk("Cyclom-Y/PCI (bus=0x0%x, pci_id=0x%x, ",
|
||||
pdev->bus->number, pdev->devfn);
|
||||
printk("rev_id=%d) IRQ%d\n",
|
||||
cyy_rev_id, (int)cy_pci_irq);
|
||||
printk("Cyclom-Y/PCI:found winaddr=0x%lx "
|
||||
"ctladdr=0x%lx\n",
|
||||
(ulong)cy_pci_phys2,
|
||||
(ulong)cy_pci_phys0);
|
||||
printk("Cyclom-Y/PCI not supported for low "
|
||||
"addresses in Alpha systems.\n");
|
||||
i--;
|
||||
continue;
|
||||
}
|
||||
#endif
|
||||
cy_pci_addr0 = pci_iomap(pdev, 0, CyPCI_Yctl);
|
||||
cy_pci_addr2 = pci_iomap(pdev, 2, CyPCI_Ywin);
|
||||
|
||||
#ifdef CY_PCI_DEBUG
|
||||
printk("Cyclom-Y/PCI: relocate winaddr=0x%lx "
|
||||
"ctladdr=0x%lx\n",
|
||||
(u_long)cy_pci_addr2, (u_long)cy_pci_addr0);
|
||||
#endif
|
||||
cy_pci_nchan = (unsigned short)(CyPORTS_PER_CHIP *
|
||||
cyy_init_card(cy_pci_addr2, 1));
|
||||
if (cy_pci_nchan == 0) {
|
||||
printk("Cyclom-Y PCI host card with ");
|
||||
printk("no Serial-Modules at 0x%lx.\n",
|
||||
(ulong) cy_pci_phys2);
|
||||
i--;
|
||||
continue;
|
||||
}
|
||||
if ((cy_next_channel + cy_pci_nchan) > NR_PORTS) {
|
||||
printk("Cyclom-Y/PCI found at 0x%lx ",
|
||||
(ulong) cy_pci_phys2);
|
||||
printk("but no channels are available.\n");
|
||||
printk("Change NR_PORTS in cyclades.c and "
|
||||
"recompile kernel.\n");
|
||||
return i;
|
||||
}
|
||||
/* fill the next cy_card structure available */
|
||||
for (j = 0; j < NR_CARDS; j++) {
|
||||
if (cy_card[j].base_addr == 0)
|
||||
break;
|
||||
}
|
||||
if (j == NR_CARDS) { /* no more cy_cards available */
|
||||
printk("Cyclom-Y/PCI found at 0x%lx ",
|
||||
(ulong) cy_pci_phys2);
|
||||
printk("but no more cards can be used.\n");
|
||||
printk("Change NR_CARDS in cyclades.c and "
|
||||
"recompile kernel.\n");
|
||||
return i;
|
||||
}
|
||||
|
||||
/* allocate IRQ */
|
||||
if (request_irq(cy_pci_irq, cyy_interrupt,
|
||||
IRQF_SHARED, "Cyclom-Y", &cy_card[j])) {
|
||||
printk("Cyclom-Y/PCI found at 0x%lx ",
|
||||
(ulong) cy_pci_phys2);
|
||||
printk("but could not allocate IRQ%d.\n",
|
||||
cy_pci_irq);
|
||||
return i;
|
||||
}
|
||||
|
||||
/* set cy_card */
|
||||
cy_card[j].base_phys = (ulong) cy_pci_phys2;
|
||||
cy_card[j].ctl_phys = (ulong) cy_pci_phys0;
|
||||
cy_card[j].base_addr = cy_pci_addr2;
|
||||
cy_card[j].ctl_addr = cy_pci_addr0;
|
||||
cy_card[j].irq = (int)cy_pci_irq;
|
||||
cy_card[j].bus_index = 1;
|
||||
cy_card[j].first_line = cy_next_channel;
|
||||
cy_card[j].num_chips = cy_pci_nchan / 4;
|
||||
cy_card[j].pdev = pdev;
|
||||
pci_set_drvdata(pdev, &cy_card[j]);
|
||||
|
||||
/* enable interrupts in the PCI interface */
|
||||
plx_ver = readb(cy_pci_addr2 + CyPLX_VER) & 0x0f;
|
||||
switch (plx_ver) {
|
||||
case PLX_9050:
|
||||
|
||||
cy_writeb(cy_pci_addr0 + 0x4c, 0x43);
|
||||
break;
|
||||
|
||||
case PLX_9060:
|
||||
case PLX_9080:
|
||||
default: /* Old boards, use PLX_9060 */
|
||||
|
||||
plx_init(cy_pci_addr0, 0x6c);
|
||||
/* For some yet unknown reason, once the PLX9060 reloads
|
||||
the EEPROM, the IRQ is lost and, thus, we have to
|
||||
re-write it to the PCI config. registers.
|
||||
This will remain here until we find a permanent
|
||||
fix. */
|
||||
pci_write_config_byte(pdev, PCI_INTERRUPT_LINE,
|
||||
cy_pci_irq);
|
||||
|
||||
cy_writew(cy_pci_addr0 + 0x68,
|
||||
readw(cy_pci_addr0 + 0x68) | 0x0900);
|
||||
break;
|
||||
}
|
||||
|
||||
/* print message */
|
||||
printk("Cyclom-Y/PCI #%d: 0x%lx-0x%lx, IRQ%d, ",
|
||||
j + 1, (ulong)cy_pci_phys2,
|
||||
(ulong) (cy_pci_phys2 + CyPCI_Ywin - 1),
|
||||
(int)cy_pci_irq);
|
||||
printk("%d channels starting from port %d.\n",
|
||||
cy_pci_nchan, cy_next_channel);
|
||||
|
||||
cy_next_channel += cy_pci_nchan;
|
||||
} else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Lo) {
|
||||
/* print message */
|
||||
printk("Cyclades-Z/PCI (bus=0x0%x, pci_id=0x%x, ",
|
||||
pdev->bus->number, pdev->devfn);
|
||||
printk("rev_id=%d) IRQ%d\n",
|
||||
cyy_rev_id, (int)cy_pci_irq);
|
||||
printk("Cyclades-Z/PCI: found winaddr=0x%lx "
|
||||
"ctladdr=0x%lx\n",
|
||||
(ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
|
||||
printk("Cyclades-Z/PCI not supported for low "
|
||||
"addresses\n");
|
||||
break;
|
||||
} else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Hi) {
|
||||
#ifdef CY_PCI_DEBUG
|
||||
printk("Cyclades-Z/PCI (bus=0x0%x, pci_id=0x%x, ",
|
||||
pdev->bus->number, pdev->devfn);
|
||||
printk("rev_id=%d) IRQ%d\n",
|
||||
cyy_rev_id, (int)cy_pci_irq);
|
||||
printk("Cyclades-Z/PCI: found winaddr=0x%lx "
|
||||
"ctladdr=0x%lx\n",
|
||||
(ulong) cy_pci_phys2, (ulong) cy_pci_phys0);
|
||||
#endif
|
||||
cy_pci_addr0 = pci_iomap(pdev, 0, CyPCI_Zctl);
|
||||
|
||||
/* Disable interrupts on the PLX before resetting it */
|
||||
cy_writew(cy_pci_addr0 + 0x68,
|
||||
readw(cy_pci_addr0 + 0x68) & ~0x0900);
|
||||
|
||||
plx_init(cy_pci_addr0, 0x6c);
|
||||
/* For some yet unknown reason, once the PLX9060 reloads
|
||||
the EEPROM, the IRQ is lost and, thus, we have to
|
||||
re-write it to the PCI config. registers.
|
||||
This will remain here until we find a permanent
|
||||
fix. */
|
||||
pci_write_config_byte(pdev, PCI_INTERRUPT_LINE,
|
||||
cy_pci_irq);
|
||||
|
||||
mailbox = (__u32)readl(&((struct RUNTIME_9060 __iomem *)
|
||||
cy_pci_addr0)->mail_box_0);
|
||||
|
||||
if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) {
|
||||
printk(" Warning: PCI I/O bit incorrectly "
|
||||
"set. Ignoring it...\n");
|
||||
pdev->resource[2].flags &= ~IORESOURCE_IO;
|
||||
}
|
||||
|
||||
/* Although we don't use this I/O region, we should
|
||||
request it from the kernel anyway, to avoid problems
|
||||
with other drivers accessing it. */
|
||||
if (pci_request_regions(pdev, "Cyclades-Z") != 0) {
|
||||
printk(KERN_ERR "cyclades: failed to reserve "
|
||||
"PCI resources\n");
|
||||
continue;
|
||||
}
|
||||
|
||||
if (mailbox == ZE_V1) {
|
||||
retval = cy_init_Ze(cy_pci_phys0, cy_pci_phys2,
|
||||
cy_pci_addr0, cy_pci_irq, pdev);
|
||||
if (retval < 0)
|
||||
i--;
|
||||
continue;
|
||||
} else {
|
||||
cy_pci_addr2 = pci_iomap(pdev, 2, CyPCI_Zwin);
|
||||
}
|
||||
|
||||
#ifdef CY_PCI_DEBUG
|
||||
printk("Cyclades-Z/PCI: relocate winaddr=0x%lx "
|
||||
"ctladdr=0x%lx\n",
|
||||
(ulong) cy_pci_addr2, (ulong) cy_pci_addr0);
|
||||
if (mailbox == ZO_V1) {
|
||||
cy_writel(&((struct RUNTIME_9060 *)
|
||||
(cy_pci_addr0))->loc_addr_base,
|
||||
WIN_CREG);
|
||||
printk("Cyclades-8Zo/PCI: FPGA id %lx, ver "
|
||||
"%lx\n", (ulong) (0xff &
|
||||
readl(&((struct CUSTOM_REG *)
|
||||
(cy_pci_addr2))->fpga_id)),
|
||||
(ulong)(0xff &
|
||||
readl(&((struct CUSTOM_REG *)
|
||||
(cy_pci_addr2))->
|
||||
fpga_version)));
|
||||
cy_writel(&((struct RUNTIME_9060 *)
|
||||
(cy_pci_addr0))->loc_addr_base,
|
||||
WIN_RAM);
|
||||
} else {
|
||||
printk("Cyclades-Z/PCI: New Cyclades-Z board. "
|
||||
"FPGA not loaded\n");
|
||||
}
|
||||
#endif
|
||||
/* The following clears the firmware id word. This
|
||||
ensures that the driver will not attempt to talk to
|
||||
the board until it has been properly initialized.
|
||||
*/
|
||||
if ((mailbox == ZO_V1) || (mailbox == ZO_V2))
|
||||
cy_writel(cy_pci_addr2 + ID_ADDRESS, 0L);
|
||||
|
||||
/* This must be a Cyclades-8Zo/PCI. The extendable
|
||||
version will have a different device_id and will
|
||||
be allocated its maximum number of ports. */
|
||||
cy_pci_nchan = 8;
|
||||
|
||||
if ((cy_next_channel + cy_pci_nchan) > NR_PORTS) {
|
||||
printk("Cyclades-8Zo/PCI found at 0x%lx but"
|
||||
"no channels are available.\nChange "
|
||||
"NR_PORTS in cyclades.c and recompile "
|
||||
"kernel.\n", (ulong)cy_pci_phys2);
|
||||
return i;
|
||||
}
|
||||
|
||||
/* fill the next cy_card structure available */
|
||||
for (j = 0; j < NR_CARDS; j++) {
|
||||
if (cy_card[j].base_addr == 0)
|
||||
break;
|
||||
}
|
||||
if (j == NR_CARDS) { /* no more cy_cards available */
|
||||
printk("Cyclades-8Zo/PCI found at 0x%lx but"
|
||||
"no more cards can be used.\nChange "
|
||||
"NR_CARDS in cyclades.c and recompile "
|
||||
"kernel.\n", (ulong)cy_pci_phys2);
|
||||
return i;
|
||||
}
|
||||
#ifdef CONFIG_CYZ_INTR
|
||||
/* allocate IRQ only if board has an IRQ */
|
||||
if ((cy_pci_irq != 0) && (cy_pci_irq != 255)) {
|
||||
if (request_irq(cy_pci_irq, cyz_interrupt,
|
||||
IRQF_SHARED, "Cyclades-Z",
|
||||
&cy_card[j])) {
|
||||
printk("Cyclom-8Zo/PCI found at 0x%lx "
|
||||
"but could not allocate "
|
||||
"IRQ%d.\n", (ulong)cy_pci_phys2,
|
||||
cy_pci_irq);
|
||||
return i;
|
||||
}
|
||||
}
|
||||
#endif /* CONFIG_CYZ_INTR */
|
||||
|
||||
/* set cy_card */
|
||||
cy_card[j].base_phys = cy_pci_phys2;
|
||||
cy_card[j].ctl_phys = cy_pci_phys0;
|
||||
cy_card[j].base_addr = cy_pci_addr2;
|
||||
cy_card[j].ctl_addr = cy_pci_addr0;
|
||||
cy_card[j].irq = (int)cy_pci_irq;
|
||||
cy_card[j].bus_index = 1;
|
||||
cy_card[j].first_line = cy_next_channel;
|
||||
cy_card[j].num_chips = -1;
|
||||
cy_card[j].pdev = pdev;
|
||||
pci_set_drvdata(pdev, &cy_card[j]);
|
||||
|
||||
/* print message */
|
||||
#ifdef CONFIG_CYZ_INTR
|
||||
/* don't report IRQ if board is no IRQ */
|
||||
if ((cy_pci_irq != 0) && (cy_pci_irq != 255))
|
||||
printk("Cyclades-8Zo/PCI #%d: 0x%lx-0x%lx, "
|
||||
"IRQ%d, ", j + 1, (ulong)cy_pci_phys2,
|
||||
(ulong) (cy_pci_phys2 + CyPCI_Zwin - 1),
|
||||
(int)cy_pci_irq);
|
||||
else
|
||||
#endif /* CONFIG_CYZ_INTR */
|
||||
printk("Cyclades-8Zo/PCI #%d: 0x%lx-0x%lx, ",
|
||||
j + 1, (ulong)cy_pci_phys2,
|
||||
(ulong)(cy_pci_phys2 + CyPCI_Zwin - 1));
|
||||
|
||||
printk("%d channels starting from port %d.\n",
|
||||
cy_pci_nchan, cy_next_channel);
|
||||
cy_next_channel += cy_pci_nchan;
|
||||
}
|
||||
i -= !!cy_pci_probe(pdev, &cy_pci_dev_id[dev_index]);
|
||||
}
|
||||
|
||||
return i;
|
||||
|
|
|
|||
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