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authorJiri Slaby <jirislaby@gmail.com>2007-05-08 03:36:13 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 14:15:23 -0400
commit58936d8d944e27b75c99b1c59cfeea3f253b03cb (patch)
tree07d41785b900fa6293422804af3e8d902fc7a302 /drivers/char/cyclades.c
parent2b1da41fb3eb41fab1e27cdcce7712b61ef45186 (diff)
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>
Diffstat (limited to 'drivers/char/cyclades.c')
-rw-r--r--drivers/char/cyclades.c623
1 files changed, 318 insertions, 305 deletions
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index a49232746438..e5de0409b37c 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -4698,7 +4698,8 @@ static int __init cy_detect_isa(void)
4698#endif /* CONFIG_ISA */ 4698#endif /* CONFIG_ISA */
4699} /* cy_detect_isa */ 4699} /* cy_detect_isa */
4700 4700
4701static void plx_init(void __iomem * addr, __u32 initctl) 4701#ifdef CONFIG_PCI
4702static void __devinit plx_init(void __iomem * addr, __u32 initctl)
4702{ 4703{
4703 /* Reset PLX */ 4704 /* Reset PLX */
4704 cy_writel(addr + initctl, readl(addr + initctl) | 0x40000000); 4705 cy_writel(addr + initctl, readl(addr + initctl) | 0x40000000);
@@ -4800,355 +4801,367 @@ static int __devinit cy_init_Ze(unsigned long cy_pci_phys0,
4800 return 0; 4801 return 0;
4801} 4802}
4802 4803
4803/* 4804static int __devinit cy_pci_probe(struct pci_dev *pdev,
4804 * --------------------------------------------------------------------- 4805 const struct pci_device_id *ent)
4805 * cy_detect_pci() - Test PCI bus presence and Cyclom-Ye/PCI.
4806 * sets global variables and return the number of PCI boards found.
4807 * ---------------------------------------------------------------------
4808 */
4809static int __init cy_detect_pci(void)
4810{ 4806{
4811#ifdef CONFIG_PCI
4812
4813 struct pci_dev *pdev = NULL;
4814 unsigned char cyy_rev_id; 4807 unsigned char cyy_rev_id;
4815 unsigned char cy_pci_irq = 0; 4808 unsigned char cy_pci_irq;
4816 __u32 cy_pci_phys0, cy_pci_phys2; 4809 __u32 cy_pci_phys0, cy_pci_phys2, mailbox;
4817 void __iomem *cy_pci_addr0, *cy_pci_addr2; 4810 void __iomem *cy_pci_addr0, *cy_pci_addr2;
4818 unsigned short i, j, cy_pci_nchan, plx_ver; 4811 unsigned int device_id;
4819 unsigned short device_id, dev_index = 0; 4812 unsigned short j, cy_pci_nchan, plx_ver;
4820 __u32 mailbox;
4821 int retval; 4813 int retval;
4822 4814
4823 for (i = 0; i < NR_CARDS; i++) { 4815 retval = pci_enable_device(pdev);
4824 /* look for a Cyclades card by vendor and device id */ 4816 if (retval) {
4825 while ((device_id = cy_pci_dev_id[dev_index].device) != 0) { 4817 dev_err(&pdev->dev, "cannot enable device\n");
4826 if ((pdev = pci_get_device(PCI_VENDOR_ID_CYCLADES, 4818 return retval;
4827 device_id, pdev)) == NULL) { 4819 }
4828 dev_index++; /* try next device id */
4829 } else {
4830 break; /* found a board */
4831 }
4832 }
4833 4820
4834 if (device_id == 0) 4821 /* read PCI configuration area */
4835 break; 4822 cy_pci_irq = pdev->irq;
4823 cy_pci_phys0 = pci_resource_start(pdev, 0);
4824 cy_pci_phys2 = pci_resource_start(pdev, 2);
4825 pci_read_config_byte(pdev, PCI_REVISION_ID, &cyy_rev_id);
4836 4826
4837 if (pci_enable_device(pdev)) 4827 device_id = pdev->device & ~PCI_DEVICE_ID_MASK;
4838 continue;
4839 4828
4840 /* read PCI configuration area */ 4829 if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo ||
4841 cy_pci_irq = pdev->irq; 4830 device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
4842 cy_pci_phys0 = pci_resource_start(pdev, 0); 4831#ifdef CY_PCI_DEBUG
4843 cy_pci_phys2 = pci_resource_start(pdev, 2); 4832 printk("Cyclom-Y/PCI (bus=0x0%x, pci_id=0x%x, ",
4844 pci_read_config_byte(pdev, PCI_REVISION_ID, &cyy_rev_id); 4833 pdev->bus->number, pdev->devfn);
4834 printk("rev_id=%d) IRQ%d\n",
4835 cyy_rev_id, (int)cy_pci_irq);
4836 printk("Cyclom-Y/PCI:found winaddr=0x%lx "
4837 "ctladdr=0x%lx\n",
4838 (ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
4839#endif
4845 4840
4846 device_id &= ~PCI_DEVICE_ID_MASK; 4841 if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) {
4842 printk(" Warning: PCI I/O bit incorrectly "
4843 "set. Ignoring it...\n");
4844 pdev->resource[2].flags &= ~IORESOURCE_IO;
4845 }
4847 4846
4848 if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo || 4847 /* Although we don't use this I/O region, we should
4849 device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) { 4848 request it from the kernel anyway, to avoid problems
4850#ifdef CY_PCI_DEBUG 4849 with other drivers accessing it. */
4850 retval = pci_request_regions(pdev, "Cyclom-Y");
4851 if (retval) {
4852 printk(KERN_ERR "cyclades: failed to reserve "
4853 "PCI resources\n");
4854 return retval;
4855 }
4856#if defined(__alpha__)
4857 if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo) { /* below 1M? */
4851 printk("Cyclom-Y/PCI (bus=0x0%x, pci_id=0x%x, ", 4858 printk("Cyclom-Y/PCI (bus=0x0%x, pci_id=0x%x, ",
4852 pdev->bus->number, pdev->devfn); 4859 pdev->bus->number, pdev->devfn);
4853 printk("rev_id=%d) IRQ%d\n", 4860 printk("rev_id=%d) IRQ%d\n",
4854 cyy_rev_id, (int)cy_pci_irq); 4861 cyy_rev_id, (int)cy_pci_irq);
4855 printk("Cyclom-Y/PCI:found winaddr=0x%lx " 4862 printk("Cyclom-Y/PCI:found winaddr=0x%lx "
4856 "ctladdr=0x%lx\n", 4863 "ctladdr=0x%lx\n",
4857 (ulong)cy_pci_phys2, (ulong)cy_pci_phys0); 4864 (ulong)cy_pci_phys2,
4858#endif 4865 (ulong)cy_pci_phys0);
4859 4866 printk("Cyclom-Y/PCI not supported for low "
4860 if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) { 4867 "addresses in Alpha systems.\n");
4861 printk(" Warning: PCI I/O bit incorrectly " 4868 return -EIO;
4862 "set. Ignoring it...\n"); 4869 }
4863 pdev->resource[2].flags &= ~IORESOURCE_IO;
4864 }
4865
4866 /* Although we don't use this I/O region, we should
4867 request it from the kernel anyway, to avoid problems
4868 with other drivers accessing it. */
4869 if (pci_request_regions(pdev, "Cyclom-Y") != 0) {
4870 printk(KERN_ERR "cyclades: failed to reserve "
4871 "PCI resources\n");
4872 continue;
4873 }
4874#if defined(__alpha__)
4875 if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo) { /* below 1M? */
4876 printk("Cyclom-Y/PCI (bus=0x0%x, pci_id=0x%x, ",
4877 pdev->bus->number, pdev->devfn);
4878 printk("rev_id=%d) IRQ%d\n",
4879 cyy_rev_id, (int)cy_pci_irq);
4880 printk("Cyclom-Y/PCI:found winaddr=0x%lx "
4881 "ctladdr=0x%lx\n",
4882 (ulong)cy_pci_phys2,
4883 (ulong)cy_pci_phys0);
4884 printk("Cyclom-Y/PCI not supported for low "
4885 "addresses in Alpha systems.\n");
4886 i--;
4887 continue;
4888 }
4889#endif 4870#endif
4890 cy_pci_addr0 = pci_iomap(pdev, 0, CyPCI_Yctl); 4871 cy_pci_addr0 = pci_iomap(pdev, 0, CyPCI_Yctl);
4891 cy_pci_addr2 = pci_iomap(pdev, 2, CyPCI_Ywin); 4872 cy_pci_addr2 = pci_iomap(pdev, 2, CyPCI_Ywin);
4892 4873
4893#ifdef CY_PCI_DEBUG 4874#ifdef CY_PCI_DEBUG
4894 printk("Cyclom-Y/PCI: relocate winaddr=0x%lx " 4875 printk("Cyclom-Y/PCI: relocate winaddr=0x%lx "
4895 "ctladdr=0x%lx\n", 4876 "ctladdr=0x%lx\n",
4896 (u_long)cy_pci_addr2, (u_long)cy_pci_addr0); 4877 (u_long)cy_pci_addr2, (u_long)cy_pci_addr0);
4897#endif 4878#endif
4898 cy_pci_nchan = (unsigned short)(CyPORTS_PER_CHIP * 4879 cy_pci_nchan = (unsigned short)(CyPORTS_PER_CHIP *
4899 cyy_init_card(cy_pci_addr2, 1)); 4880 cyy_init_card(cy_pci_addr2, 1));
4900 if (cy_pci_nchan == 0) { 4881 if (cy_pci_nchan == 0) {
4901 printk("Cyclom-Y PCI host card with "); 4882 printk("Cyclom-Y PCI host card with ");
4902 printk("no Serial-Modules at 0x%lx.\n", 4883 printk("no Serial-Modules at 0x%lx.\n",
4903 (ulong) cy_pci_phys2); 4884 (ulong) cy_pci_phys2);
4904 i--; 4885 return -EIO;
4905 continue; 4886 }
4906 } 4887 if ((cy_next_channel + cy_pci_nchan) > NR_PORTS) {
4907 if ((cy_next_channel + cy_pci_nchan) > NR_PORTS) { 4888 printk("Cyclom-Y/PCI found at 0x%lx ",
4908 printk("Cyclom-Y/PCI found at 0x%lx ", 4889 (ulong) cy_pci_phys2);
4909 (ulong) cy_pci_phys2); 4890 printk("but no channels are available.\n");
4910 printk("but no channels are available.\n"); 4891 printk("Change NR_PORTS in cyclades.c and "
4911 printk("Change NR_PORTS in cyclades.c and " 4892 "recompile kernel.\n");
4912 "recompile kernel.\n"); 4893 return -EIO;
4913 return i; 4894 }
4914 } 4895 /* fill the next cy_card structure available */
4915 /* fill the next cy_card structure available */ 4896 for (j = 0; j < NR_CARDS; j++) {
4916 for (j = 0; j < NR_CARDS; j++) { 4897 if (cy_card[j].base_addr == 0)
4917 if (cy_card[j].base_addr == 0)
4918 break;
4919 }
4920 if (j == NR_CARDS) { /* no more cy_cards available */
4921 printk("Cyclom-Y/PCI found at 0x%lx ",
4922 (ulong) cy_pci_phys2);
4923 printk("but no more cards can be used.\n");
4924 printk("Change NR_CARDS in cyclades.c and "
4925 "recompile kernel.\n");
4926 return i;
4927 }
4928
4929 /* allocate IRQ */
4930 if (request_irq(cy_pci_irq, cyy_interrupt,
4931 IRQF_SHARED, "Cyclom-Y", &cy_card[j])) {
4932 printk("Cyclom-Y/PCI found at 0x%lx ",
4933 (ulong) cy_pci_phys2);
4934 printk("but could not allocate IRQ%d.\n",
4935 cy_pci_irq);
4936 return i;
4937 }
4938
4939 /* set cy_card */
4940 cy_card[j].base_phys = (ulong) cy_pci_phys2;
4941 cy_card[j].ctl_phys = (ulong) cy_pci_phys0;
4942 cy_card[j].base_addr = cy_pci_addr2;
4943 cy_card[j].ctl_addr = cy_pci_addr0;
4944 cy_card[j].irq = (int)cy_pci_irq;
4945 cy_card[j].bus_index = 1;
4946 cy_card[j].first_line = cy_next_channel;
4947 cy_card[j].num_chips = cy_pci_nchan / 4;
4948 cy_card[j].pdev = pdev;
4949 pci_set_drvdata(pdev, &cy_card[j]);
4950
4951 /* enable interrupts in the PCI interface */
4952 plx_ver = readb(cy_pci_addr2 + CyPLX_VER) & 0x0f;
4953 switch (plx_ver) {
4954 case PLX_9050:
4955
4956 cy_writeb(cy_pci_addr0 + 0x4c, 0x43);
4957 break; 4898 break;
4899 }
4900 if (j == NR_CARDS) { /* no more cy_cards available */
4901 printk("Cyclom-Y/PCI found at 0x%lx ",
4902 (ulong) cy_pci_phys2);
4903 printk("but no more cards can be used.\n");
4904 printk("Change NR_CARDS in cyclades.c and "
4905 "recompile kernel.\n");
4906 return -EIO;
4907 }
4958 4908
4959 case PLX_9060: 4909 /* allocate IRQ */
4960 case PLX_9080: 4910 retval = request_irq(cy_pci_irq, cyy_interrupt,
4961 default: /* Old boards, use PLX_9060 */ 4911 IRQF_SHARED, "Cyclom-Y", &cy_card[j]);
4962 4912 if (retval) {
4963 plx_init(cy_pci_addr0, 0x6c); 4913 printk("Cyclom-Y/PCI found at 0x%lx ",
4964 /* For some yet unknown reason, once the PLX9060 reloads 4914 (ulong) cy_pci_phys2);
4965 the EEPROM, the IRQ is lost and, thus, we have to 4915 printk("but could not allocate IRQ%d.\n",
4966 re-write it to the PCI config. registers. 4916 cy_pci_irq);
4967 This will remain here until we find a permanent 4917 return retval;
4968 fix. */ 4918 }
4969 pci_write_config_byte(pdev, PCI_INTERRUPT_LINE,
4970 cy_pci_irq);
4971
4972 cy_writew(cy_pci_addr0 + 0x68,
4973 readw(cy_pci_addr0 + 0x68) | 0x0900);
4974 break;
4975 }
4976 4919
4977 /* print message */ 4920 /* set cy_card */
4978 printk("Cyclom-Y/PCI #%d: 0x%lx-0x%lx, IRQ%d, ", 4921 cy_card[j].base_phys = (ulong) cy_pci_phys2;
4979 j + 1, (ulong)cy_pci_phys2, 4922 cy_card[j].ctl_phys = (ulong) cy_pci_phys0;
4980 (ulong) (cy_pci_phys2 + CyPCI_Ywin - 1), 4923 cy_card[j].base_addr = cy_pci_addr2;
4981 (int)cy_pci_irq); 4924 cy_card[j].ctl_addr = cy_pci_addr0;
4982 printk("%d channels starting from port %d.\n", 4925 cy_card[j].irq = (int)cy_pci_irq;
4983 cy_pci_nchan, cy_next_channel); 4926 cy_card[j].bus_index = 1;
4927 cy_card[j].first_line = cy_next_channel;
4928 cy_card[j].num_chips = cy_pci_nchan / 4;
4929 cy_card[j].pdev = pdev;
4930 pci_set_drvdata(pdev, &cy_card[j]);
4984 4931
4985 cy_next_channel += cy_pci_nchan; 4932 /* enable interrupts in the PCI interface */
4986 } else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Lo) { 4933 plx_ver = readb(cy_pci_addr2 + CyPLX_VER) & 0x0f;
4987 /* print message */ 4934 switch (plx_ver) {
4988 printk("Cyclades-Z/PCI (bus=0x0%x, pci_id=0x%x, ", 4935 case PLX_9050:
4989 pdev->bus->number, pdev->devfn); 4936
4990 printk("rev_id=%d) IRQ%d\n", 4937 cy_writeb(cy_pci_addr0 + 0x4c, 0x43);
4991 cyy_rev_id, (int)cy_pci_irq);
4992 printk("Cyclades-Z/PCI: found winaddr=0x%lx "
4993 "ctladdr=0x%lx\n",
4994 (ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
4995 printk("Cyclades-Z/PCI not supported for low "
4996 "addresses\n");
4997 break; 4938 break;
4998 } else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Hi) {
4999#ifdef CY_PCI_DEBUG
5000 printk("Cyclades-Z/PCI (bus=0x0%x, pci_id=0x%x, ",
5001 pdev->bus->number, pdev->devfn);
5002 printk("rev_id=%d) IRQ%d\n",
5003 cyy_rev_id, (int)cy_pci_irq);
5004 printk("Cyclades-Z/PCI: found winaddr=0x%lx "
5005 "ctladdr=0x%lx\n",
5006 (ulong) cy_pci_phys2, (ulong) cy_pci_phys0);
5007#endif
5008 cy_pci_addr0 = pci_iomap(pdev, 0, CyPCI_Zctl);
5009 4939
5010 /* Disable interrupts on the PLX before resetting it */ 4940 case PLX_9060:
5011 cy_writew(cy_pci_addr0 + 0x68, 4941 case PLX_9080:
5012 readw(cy_pci_addr0 + 0x68) & ~0x0900); 4942 default: /* Old boards, use PLX_9060 */
5013 4943
5014 plx_init(cy_pci_addr0, 0x6c); 4944 plx_init(cy_pci_addr0, 0x6c);
5015 /* For some yet unknown reason, once the PLX9060 reloads 4945 /* For some yet unknown reason, once the PLX9060 reloads
5016 the EEPROM, the IRQ is lost and, thus, we have to 4946 the EEPROM, the IRQ is lost and, thus, we have to
5017 re-write it to the PCI config. registers. 4947 re-write it to the PCI config. registers.
5018 This will remain here until we find a permanent 4948 This will remain here until we find a permanent
5019 fix. */ 4949 fix. */
5020 pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, 4950 pci_write_config_byte(pdev, PCI_INTERRUPT_LINE,
5021 cy_pci_irq); 4951 cy_pci_irq);
5022 4952
5023 mailbox = (__u32)readl(&((struct RUNTIME_9060 __iomem *) 4953 cy_writew(cy_pci_addr0 + 0x68,
5024 cy_pci_addr0)->mail_box_0); 4954 readw(cy_pci_addr0 + 0x68) | 0x0900);
4955 break;
4956 }
5025 4957
5026 if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) { 4958 /* print message */
5027 printk(" Warning: PCI I/O bit incorrectly " 4959 printk("Cyclom-Y/PCI #%d: 0x%lx-0x%lx, IRQ%d, ",
5028 "set. Ignoring it...\n"); 4960 j + 1, (ulong)cy_pci_phys2,
5029 pdev->resource[2].flags &= ~IORESOURCE_IO; 4961 (ulong) (cy_pci_phys2 + CyPCI_Ywin - 1),
5030 } 4962 (int)cy_pci_irq);
4963 printk("%d channels starting from port %d.\n",
4964 cy_pci_nchan, cy_next_channel);
5031 4965
5032 /* Although we don't use this I/O region, we should 4966 cy_next_channel += cy_pci_nchan;
5033 request it from the kernel anyway, to avoid problems 4967 } else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Lo) {
5034 with other drivers accessing it. */ 4968 /* print message */
5035 if (pci_request_regions(pdev, "Cyclades-Z") != 0) { 4969 printk("Cyclades-Z/PCI (bus=0x0%x, pci_id=0x%x, ",
5036 printk(KERN_ERR "cyclades: failed to reserve " 4970 pdev->bus->number, pdev->devfn);
5037 "PCI resources\n"); 4971 printk("rev_id=%d) IRQ%d\n",
5038 continue; 4972 cyy_rev_id, (int)cy_pci_irq);
5039 } 4973 printk("Cyclades-Z/PCI: found winaddr=0x%lx "
4974 "ctladdr=0x%lx\n",
4975 (ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
4976 printk("Cyclades-Z/PCI not supported for low "
4977 "addresses\n");
4978 return -EIO;
4979 } else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Hi) {
4980#ifdef CY_PCI_DEBUG
4981 printk("Cyclades-Z/PCI (bus=0x0%x, pci_id=0x%x, ",
4982 pdev->bus->number, pdev->devfn);
4983 printk("rev_id=%d) IRQ%d\n",
4984 cyy_rev_id, (int)cy_pci_irq);
4985 printk("Cyclades-Z/PCI: found winaddr=0x%lx "
4986 "ctladdr=0x%lx\n",
4987 (ulong) cy_pci_phys2, (ulong) cy_pci_phys0);
4988#endif
4989 cy_pci_addr0 = pci_iomap(pdev, 0, CyPCI_Zctl);
4990
4991 /* Disable interrupts on the PLX before resetting it */
4992 cy_writew(cy_pci_addr0 + 0x68,
4993 readw(cy_pci_addr0 + 0x68) & ~0x0900);
4994
4995 plx_init(cy_pci_addr0, 0x6c);
4996 /* For some yet unknown reason, once the PLX9060 reloads
4997 the EEPROM, the IRQ is lost and, thus, we have to
4998 re-write it to the PCI config. registers.
4999 This will remain here until we find a permanent
5000 fix. */
5001 pci_write_config_byte(pdev, PCI_INTERRUPT_LINE,
5002 cy_pci_irq);
5040 5003
5041 if (mailbox == ZE_V1) { 5004 mailbox = (__u32)readl(&((struct RUNTIME_9060 __iomem *)
5042 retval = cy_init_Ze(cy_pci_phys0, cy_pci_phys2, 5005 cy_pci_addr0)->mail_box_0);
5043 cy_pci_addr0, cy_pci_irq, pdev); 5006
5044 if (retval < 0) 5007 if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) {
5045 i--; 5008 printk(" Warning: PCI I/O bit incorrectly "
5046 continue; 5009 "set. Ignoring it...\n");
5047 } else { 5010 pdev->resource[2].flags &= ~IORESOURCE_IO;
5048 cy_pci_addr2 = pci_iomap(pdev, 2, CyPCI_Zwin); 5011 }
5049 } 5012
5013 /* Although we don't use this I/O region, we should
5014 request it from the kernel anyway, to avoid problems
5015 with other drivers accessing it. */
5016 retval = pci_request_regions(pdev, "Cyclades-Z");
5017 if (retval) {
5018 printk(KERN_ERR "cyclades: failed to reserve "
5019 "PCI resources\n");
5020 return retval;
5021 }
5022
5023 if (mailbox == ZE_V1) {
5024 retval = cy_init_Ze(cy_pci_phys0, cy_pci_phys2,
5025 cy_pci_addr0, cy_pci_irq, pdev);
5026 return retval;
5027 } else {
5028 cy_pci_addr2 = pci_iomap(pdev, 2, CyPCI_Zwin);
5029 }
5050 5030
5051#ifdef CY_PCI_DEBUG 5031#ifdef CY_PCI_DEBUG
5052 printk("Cyclades-Z/PCI: relocate winaddr=0x%lx " 5032 printk("Cyclades-Z/PCI: relocate winaddr=0x%lx "
5053 "ctladdr=0x%lx\n", 5033 "ctladdr=0x%lx\n",
5054 (ulong) cy_pci_addr2, (ulong) cy_pci_addr0); 5034 (ulong) cy_pci_addr2, (ulong) cy_pci_addr0);
5055 if (mailbox == ZO_V1) { 5035 if (mailbox == ZO_V1) {
5056 cy_writel(&((struct RUNTIME_9060 *) 5036 cy_writel(&((struct RUNTIME_9060 *)
5057 (cy_pci_addr0))->loc_addr_base, 5037 (cy_pci_addr0))->loc_addr_base,
5058 WIN_CREG); 5038 WIN_CREG);
5059 printk("Cyclades-8Zo/PCI: FPGA id %lx, ver " 5039 printk("Cyclades-8Zo/PCI: FPGA id %lx, ver "
5060 "%lx\n", (ulong) (0xff & 5040 "%lx\n", (ulong) (0xff &
5061 readl(&((struct CUSTOM_REG *) 5041 readl(&((struct CUSTOM_REG *)
5062 (cy_pci_addr2))->fpga_id)), 5042 (cy_pci_addr2))->fpga_id)),
5063 (ulong)(0xff & 5043 (ulong)(0xff &
5064 readl(&((struct CUSTOM_REG *) 5044 readl(&((struct CUSTOM_REG *)
5065 (cy_pci_addr2))-> 5045 (cy_pci_addr2))->
5066 fpga_version))); 5046 fpga_version)));
5067 cy_writel(&((struct RUNTIME_9060 *) 5047 cy_writel(&((struct RUNTIME_9060 *)
5068 (cy_pci_addr0))->loc_addr_base, 5048 (cy_pci_addr0))->loc_addr_base,
5069 WIN_RAM); 5049 WIN_RAM);
5070 } else { 5050 } else {
5071 printk("Cyclades-Z/PCI: New Cyclades-Z board. " 5051 printk("Cyclades-Z/PCI: New Cyclades-Z board. "
5072 "FPGA not loaded\n"); 5052 "FPGA not loaded\n");
5073 } 5053 }
5074#endif 5054#endif
5075 /* The following clears the firmware id word. This 5055 /* The following clears the firmware id word. This
5076 ensures that the driver will not attempt to talk to 5056 ensures that the driver will not attempt to talk to
5077 the board until it has been properly initialized. 5057 the board until it has been properly initialized.
5078 */ 5058 */
5079 if ((mailbox == ZO_V1) || (mailbox == ZO_V2)) 5059 if ((mailbox == ZO_V1) || (mailbox == ZO_V2))
5080 cy_writel(cy_pci_addr2 + ID_ADDRESS, 0L); 5060 cy_writel(cy_pci_addr2 + ID_ADDRESS, 0L);
5081 5061
5082 /* This must be a Cyclades-8Zo/PCI. The extendable 5062 /* This must be a Cyclades-8Zo/PCI. The extendable
5083 version will have a different device_id and will 5063 version will have a different device_id and will
5084 be allocated its maximum number of ports. */ 5064 be allocated its maximum number of ports. */
5085 cy_pci_nchan = 8; 5065 cy_pci_nchan = 8;
5086 5066
5087 if ((cy_next_channel + cy_pci_nchan) > NR_PORTS) { 5067 if ((cy_next_channel + cy_pci_nchan) > NR_PORTS) {
5088 printk("Cyclades-8Zo/PCI found at 0x%lx but" 5068 printk("Cyclades-8Zo/PCI found at 0x%lx but"
5089 "no channels are available.\nChange " 5069 "no channels are available.\nChange "
5090 "NR_PORTS in cyclades.c and recompile " 5070 "NR_PORTS in cyclades.c and recompile "
5091 "kernel.\n", (ulong)cy_pci_phys2); 5071 "kernel.\n", (ulong)cy_pci_phys2);
5092 return i; 5072 return -EIO;
5093 } 5073 }
5094 5074
5095 /* fill the next cy_card structure available */ 5075 /* fill the next cy_card structure available */
5096 for (j = 0; j < NR_CARDS; j++) { 5076 for (j = 0; j < NR_CARDS; j++) {
5097 if (cy_card[j].base_addr == 0) 5077 if (cy_card[j].base_addr == 0)
5098 break; 5078 break;
5099 } 5079 }
5100 if (j == NR_CARDS) { /* no more cy_cards available */ 5080 if (j == NR_CARDS) { /* no more cy_cards available */
5101 printk("Cyclades-8Zo/PCI found at 0x%lx but" 5081 printk("Cyclades-8Zo/PCI found at 0x%lx but"
5102 "no more cards can be used.\nChange " 5082 "no more cards can be used.\nChange "
5103 "NR_CARDS in cyclades.c and recompile " 5083 "NR_CARDS in cyclades.c and recompile "
5104 "kernel.\n", (ulong)cy_pci_phys2); 5084 "kernel.\n", (ulong)cy_pci_phys2);
5105 return i; 5085 return -EIO;
5106 } 5086 }
5107#ifdef CONFIG_CYZ_INTR 5087#ifdef CONFIG_CYZ_INTR
5108 /* allocate IRQ only if board has an IRQ */ 5088 /* allocate IRQ only if board has an IRQ */
5109 if ((cy_pci_irq != 0) && (cy_pci_irq != 255)) { 5089 if ((cy_pci_irq != 0) && (cy_pci_irq != 255)) {
5110 if (request_irq(cy_pci_irq, cyz_interrupt, 5090 retval = request_irq(cy_pci_irq, cyz_interrupt,
5111 IRQF_SHARED, "Cyclades-Z", 5091 IRQF_SHARED, "Cyclades-Z",
5112 &cy_card[j])) { 5092 &cy_card[j]);
5113 printk("Cyclom-8Zo/PCI found at 0x%lx " 5093 if (retval) {
5114 "but could not allocate " 5094 printk("Cyclom-8Zo/PCI found at 0x%lx "
5115 "IRQ%d.\n", (ulong)cy_pci_phys2, 5095 "but could not allocate "
5116 cy_pci_irq); 5096 "IRQ%d.\n", (ulong)cy_pci_phys2,
5117 return i; 5097 cy_pci_irq);
5118 } 5098 return retval;
5119 } 5099 }
5100 }
5120#endif /* CONFIG_CYZ_INTR */ 5101#endif /* CONFIG_CYZ_INTR */
5121 5102
5122 /* set cy_card */ 5103 /* set cy_card */
5123 cy_card[j].base_phys = cy_pci_phys2; 5104 cy_card[j].base_phys = cy_pci_phys2;
5124 cy_card[j].ctl_phys = cy_pci_phys0; 5105 cy_card[j].ctl_phys = cy_pci_phys0;
5125 cy_card[j].base_addr = cy_pci_addr2; 5106 cy_card[j].base_addr = cy_pci_addr2;
5126 cy_card[j].ctl_addr = cy_pci_addr0; 5107 cy_card[j].ctl_addr = cy_pci_addr0;
5127 cy_card[j].irq = (int)cy_pci_irq; 5108 cy_card[j].irq = (int)cy_pci_irq;
5128 cy_card[j].bus_index = 1; 5109 cy_card[j].bus_index = 1;
5129 cy_card[j].first_line = cy_next_channel; 5110 cy_card[j].first_line = cy_next_channel;
5130 cy_card[j].num_chips = -1; 5111 cy_card[j].num_chips = -1;
5131 cy_card[j].pdev = pdev; 5112 cy_card[j].pdev = pdev;
5132 pci_set_drvdata(pdev, &cy_card[j]); 5113 pci_set_drvdata(pdev, &cy_card[j]);
5133 5114
5134 /* print message */ 5115 /* print message */
5135#ifdef CONFIG_CYZ_INTR 5116#ifdef CONFIG_CYZ_INTR
5136 /* don't report IRQ if board is no IRQ */ 5117 /* don't report IRQ if board is no IRQ */
5137 if ((cy_pci_irq != 0) && (cy_pci_irq != 255)) 5118 if ((cy_pci_irq != 0) && (cy_pci_irq != 255))
5138 printk("Cyclades-8Zo/PCI #%d: 0x%lx-0x%lx, " 5119 printk("Cyclades-8Zo/PCI #%d: 0x%lx-0x%lx, "
5139 "IRQ%d, ", j + 1, (ulong)cy_pci_phys2, 5120 "IRQ%d, ", j + 1, (ulong)cy_pci_phys2,
5140 (ulong) (cy_pci_phys2 + CyPCI_Zwin - 1), 5121 (ulong) (cy_pci_phys2 + CyPCI_Zwin - 1),
5141 (int)cy_pci_irq); 5122 (int)cy_pci_irq);
5142 else 5123 else
5143#endif /* CONFIG_CYZ_INTR */ 5124#endif /* CONFIG_CYZ_INTR */
5144 printk("Cyclades-8Zo/PCI #%d: 0x%lx-0x%lx, ", 5125 printk("Cyclades-8Zo/PCI #%d: 0x%lx-0x%lx, ",
5145 j + 1, (ulong)cy_pci_phys2, 5126 j + 1, (ulong)cy_pci_phys2,
5146 (ulong)(cy_pci_phys2 + CyPCI_Zwin - 1)); 5127 (ulong)(cy_pci_phys2 + CyPCI_Zwin - 1));
5128
5129 printk("%d channels starting from port %d.\n",
5130 cy_pci_nchan, cy_next_channel);
5131 cy_next_channel += cy_pci_nchan;
5132 }
5133
5134 return 0;
5135}
5136#endif
5137
5138/*
5139 * ---------------------------------------------------------------------
5140 * cy_detect_pci() - Test PCI bus presence and Cyclom-Ye/PCI.
5141 * sets global variables and return the number of PCI boards found.
5142 * ---------------------------------------------------------------------
5143 */
5144static int __init cy_detect_pci(void)
5145{
5146#ifdef CONFIG_PCI
5147 struct pci_dev *pdev = NULL;
5148 unsigned int i, device_id, dev_index = 0;
5147 5149
5148 printk("%d channels starting from port %d.\n", 5150 for (i = 0; i < NR_CARDS; i++) {
5149 cy_pci_nchan, cy_next_channel); 5151 /* look for a Cyclades card by vendor and device id */
5150 cy_next_channel += cy_pci_nchan; 5152 while ((device_id = cy_pci_dev_id[dev_index].device) != 0) {
5153 if ((pdev = pci_get_device(PCI_VENDOR_ID_CYCLADES,
5154 device_id, pdev)) == NULL) {
5155 dev_index++; /* try next device id */
5156 } else {
5157 break; /* found a board */
5158 }
5151 } 5159 }
5160
5161 if (device_id == 0)
5162 break;
5163
5164 i -= !!cy_pci_probe(pdev, &cy_pci_dev_id[dev_index]);
5152 } 5165 }
5153 5166
5154 return i; 5167 return i;
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-24 02:16:32 -0400