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Diffstat (limited to 'arch/sparc64/kernel/isa.c')
-rw-r--r--arch/sparc64/kernel/isa.c329
1 files changed, 0 insertions, 329 deletions
diff --git a/arch/sparc64/kernel/isa.c b/arch/sparc64/kernel/isa.c
deleted file mode 100644
index 30862abee61..00000000000
--- a/arch/sparc64/kernel/isa.c
+++ /dev/null
@@ -1,329 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <asm/oplib.h>
-#include <asm/isa.h>
-
-struct sparc_isa_bridge *isa_chain;
-
-static void __init fatal_err(const char *reason)
-{
- prom_printf("ISA: fatal error, %s.\n", reason);
-}
-
-static void __init report_dev(struct sparc_isa_device *isa_dev, int child)
-{
- if (child)
- printk(" (%s)", isa_dev->prom_name);
- else
- printk(" [%s", isa_dev->prom_name);
-}
-
-static void __init isa_dev_get_resource(struct sparc_isa_device *isa_dev,
- struct linux_prom_registers *pregs,
- int pregs_size)
-{
- unsigned long base, len;
- int prop_len;
-
- prop_len = prom_getproperty(isa_dev->prom_node, "reg",
- (char *) pregs, pregs_size);
-
- if (prop_len <= 0)
- return;
-
- /* Only the first one is interesting. */
- len = pregs[0].reg_size;
- base = (((unsigned long)pregs[0].which_io << 32) |
- (unsigned long)pregs[0].phys_addr);
- base += isa_dev->bus->parent->io_space.start;
-
- isa_dev->resource.start = base;
- isa_dev->resource.end = (base + len - 1UL);
- isa_dev->resource.flags = IORESOURCE_IO;
- isa_dev->resource.name = isa_dev->prom_name;
-
- request_resource(&isa_dev->bus->parent->io_space,
- &isa_dev->resource);
-}
-
-/* I can't believe they didn't put a real INO in the isa device
- * interrupts property. The whole point of the OBP properties
- * is to shield the kernel from IRQ routing details.
- *
- * The P1275 standard for ISA devices seems to also have been
- * totally ignored.
- *
- * On later systems, an interrupt-map and interrupt-map-mask scheme
- * akin to EBUS is used.
- */
-static struct {
- int obp_irq;
- int pci_ino;
-} grover_irq_table[] = {
- { 1, 0x00 }, /* dma, unknown ino at this point */
- { 2, 0x27 }, /* floppy */
- { 3, 0x22 }, /* parallel */
- { 4, 0x2b }, /* serial */
- { 5, 0x25 }, /* acpi power management */
-
- { 0, 0x00 } /* end of table */
-};
-
-static int __init isa_dev_get_irq_using_imap(struct sparc_isa_device *isa_dev,
- struct sparc_isa_bridge *isa_br,
- int *interrupt,
- struct linux_prom_registers *pregs)
-{
- unsigned int hi, lo, irq;
- int i;
-
- hi = pregs->which_io & isa_br->isa_intmask.phys_hi;
- lo = pregs->phys_addr & isa_br->isa_intmask.phys_lo;
- irq = *interrupt & isa_br->isa_intmask.interrupt;
- for (i = 0; i < isa_br->num_isa_intmap; i++) {
- if ((isa_br->isa_intmap[i].phys_hi == hi) &&
- (isa_br->isa_intmap[i].phys_lo == lo) &&
- (isa_br->isa_intmap[i].interrupt == irq)) {
- *interrupt = isa_br->isa_intmap[i].cinterrupt;
- return 0;
- }
- }
- return -1;
-}
-
-static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev,
- struct linux_prom_registers *pregs)
-{
- int irq_prop;
-
- irq_prop = prom_getintdefault(isa_dev->prom_node,
- "interrupts", -1);
- if (irq_prop <= 0) {
- goto no_irq;
- } else {
- struct pci_controller_info *pcic;
- struct pci_pbm_info *pbm;
- int i;
-
- if (isa_dev->bus->num_isa_intmap) {
- if (!isa_dev_get_irq_using_imap(isa_dev,
- isa_dev->bus,
- &irq_prop,
- pregs))
- goto route_irq;
- }
-
- for (i = 0; grover_irq_table[i].obp_irq != 0; i++) {
- if (grover_irq_table[i].obp_irq == irq_prop) {
- int ino = grover_irq_table[i].pci_ino;
-
- if (ino == 0)
- goto no_irq;
-
- irq_prop = ino;
- goto route_irq;
- }
- }
- goto no_irq;
-
-route_irq:
- pbm = isa_dev->bus->parent;
- pcic = pbm->parent;
- isa_dev->irq = pcic->irq_build(pbm, NULL, irq_prop);
- return;
- }
-
-no_irq:
- isa_dev->irq = PCI_IRQ_NONE;
-}
-
-static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev)
-{
- int node = prom_getchild(parent_isa_dev->prom_node);
-
- if (node == 0)
- return;
-
- printk(" ->");
- while (node != 0) {
- struct linux_prom_registers regs[PROMREG_MAX];
- struct sparc_isa_device *isa_dev;
- int prop_len;
-
- isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL);
- if (!isa_dev) {
- fatal_err("cannot allocate child isa_dev");
- prom_halt();
- }
-
- memset(isa_dev, 0, sizeof(*isa_dev));
-
- /* Link it in to parent. */
- isa_dev->next = parent_isa_dev->child;
- parent_isa_dev->child = isa_dev;
-
- isa_dev->bus = parent_isa_dev->bus;
- isa_dev->prom_node = node;
- prop_len = prom_getproperty(node, "name",
- (char *) isa_dev->prom_name,
- sizeof(isa_dev->prom_name));
- if (prop_len <= 0) {
- fatal_err("cannot get child isa_dev OBP node name");
- prom_halt();
- }
-
- prop_len = prom_getproperty(node, "compatible",
- (char *) isa_dev->compatible,
- sizeof(isa_dev->compatible));
-
- /* Not having this is OK. */
- if (prop_len <= 0)
- isa_dev->compatible[0] = '\0';
-
- isa_dev_get_resource(isa_dev, regs, sizeof(regs));
- isa_dev_get_irq(isa_dev, regs);
-
- report_dev(isa_dev, 1);
-
- node = prom_getsibling(node);
- }
-}
-
-static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
-{
- int node = prom_getchild(isa_br->prom_node);
-
- while (node != 0) {
- struct linux_prom_registers regs[PROMREG_MAX];
- struct sparc_isa_device *isa_dev;
- int prop_len;
-
- isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL);
- if (!isa_dev) {
- fatal_err("cannot allocate isa_dev");
- prom_halt();
- }
-
- memset(isa_dev, 0, sizeof(*isa_dev));
-
- /* Link it in. */
- isa_dev->next = NULL;
- if (isa_br->devices == NULL) {
- isa_br->devices = isa_dev;
- } else {
- struct sparc_isa_device *tmp = isa_br->devices;
-
- while (tmp->next)
- tmp = tmp->next;
-
- tmp->next = isa_dev;
- }
-
- isa_dev->bus = isa_br;
- isa_dev->prom_node = node;
- prop_len = prom_getproperty(node, "name",
- (char *) isa_dev->prom_name,
- sizeof(isa_dev->prom_name));
- if (prop_len <= 0) {
- fatal_err("cannot get isa_dev OBP node name");
- prom_halt();
- }
-
- prop_len = prom_getproperty(node, "compatible",
- (char *) isa_dev->compatible,
- sizeof(isa_dev->compatible));
-
- /* Not having this is OK. */
- if (prop_len <= 0)
- isa_dev->compatible[0] = '\0';
-
- isa_dev_get_resource(isa_dev, regs, sizeof(regs));
- isa_dev_get_irq(isa_dev, regs);
-
- report_dev(isa_dev, 0);
-
- isa_fill_children(isa_dev);
-
- printk("]");
-
- node = prom_getsibling(node);
- }
-}
-
-void __init isa_init(void)
-{
- struct pci_dev *pdev;
- unsigned short vendor, device;
- int index = 0;
-
- vendor = PCI_VENDOR_ID_AL;
- device = PCI_DEVICE_ID_AL_M1533;
-
- pdev = NULL;
- while ((pdev = pci_get_device(vendor, device, pdev)) != NULL) {
- struct pcidev_cookie *pdev_cookie;
- struct pci_pbm_info *pbm;
- struct sparc_isa_bridge *isa_br;
- int prop_len;
-
- pdev_cookie = pdev->sysdata;
- if (!pdev_cookie) {
- printk("ISA: Warning, ISA bridge ignored due to "
- "lack of OBP data.\n");
- continue;
- }
- pbm = pdev_cookie->pbm;
-
- isa_br = kmalloc(sizeof(*isa_br), GFP_KERNEL);
- if (!isa_br) {
- fatal_err("cannot allocate sparc_isa_bridge");
- prom_halt();
- }
-
- memset(isa_br, 0, sizeof(*isa_br));
-
- /* Link it in. */
- isa_br->next = isa_chain;
- isa_chain = isa_br;
-
- isa_br->parent = pbm;
- isa_br->self = pdev;
- isa_br->index = index++;
- isa_br->prom_node = pdev_cookie->prom_node;
- strncpy(isa_br->prom_name, pdev_cookie->prom_name,
- sizeof(isa_br->prom_name));
-
- prop_len = prom_getproperty(isa_br->prom_node,
- "ranges",
- (char *) isa_br->isa_ranges,
- sizeof(isa_br->isa_ranges));
- if (prop_len <= 0)
- isa_br->num_isa_ranges = 0;
- else
- isa_br->num_isa_ranges =
- (prop_len / sizeof(struct linux_prom_isa_ranges));
-
- prop_len = prom_getproperty(isa_br->prom_node,
- "interrupt-map",
- (char *) isa_br->isa_intmap,
- sizeof(isa_br->isa_intmap));
- if (prop_len <= 0)
- isa_br->num_isa_intmap = 0;
- else
- isa_br->num_isa_intmap =
- (prop_len / sizeof(struct linux_prom_isa_intmap));
-
- prop_len = prom_getproperty(isa_br->prom_node,
- "interrupt-map-mask",
- (char *) &(isa_br->isa_intmask),
- sizeof(isa_br->isa_intmask));
-
- printk("isa%d:", isa_br->index);
-
- isa_fill_devices(isa_br);
-
- printk("\n");
- }
-}
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