static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_sbusobppath_attr, NULL);
-struct sbus_bus *sbus_root;
-
-static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sdev)
+static void __init fill_sbus_device_iommu(struct sbus_dev *sdev)
{
- struct dev_archdata *sd;
- unsigned long base;
- const void *pval;
- int len, err;
-
- sdev->prom_node = dp->node;
- strcpy(sdev->prom_name, dp->name);
-
- pval = of_get_property(dp, "reg", &len);
- sdev->num_registers = 0;
- if (pval) {
- memcpy(sdev->reg_addrs, pval, len);
-
- sdev->num_registers =
- len / sizeof(struct linux_prom_registers);
+ struct of_device *op = of_find_device_by_node(sdev->ofdev.node);
+ struct dev_archdata *sd, *bus_sd;
+ struct sbus_bus *sbus;
- base = (unsigned long) sdev->reg_addrs[0].phys_addr;
+ sbus = sdev->bus;
+ bus_sd = &sbus->ofdev.dev.archdata;
- /* Compute the slot number. */
- if (base >= SUN_SBUS_BVADDR && sparc_cpu_model == sun4m)
- sdev->slot = sbus_dev_slot(base);
- else
- sdev->slot = sdev->reg_addrs[0].which_io;
- }
+ sd = &sdev->ofdev.dev.archdata;
+ sd->iommu = bus_sd->iommu;
+ sd->stc = bus_sd->stc;
- pval = of_get_property(dp, "ranges", &len);
- sdev->num_device_ranges = 0;
- if (pval) {
- memcpy(sdev->device_ranges, pval, len);
- sdev->num_device_ranges =
- len / sizeof(struct linux_prom_ranges);
- }
+ sd = &op->dev.archdata;
+ sd->iommu = bus_sd->iommu;
+ sd->stc = bus_sd->stc;
+}
- sbus_fill_device_irq(sdev);
+static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sdev)
+{
+ struct dev_archdata *sd;
+ int err;
sd = &sdev->ofdev.dev.archdata;
sd->prom_node = dp;
/* WE HAVE BEEN INVADED BY ALIENS! */
err = sysfs_create_file(&sdev->ofdev.dev.kobj, &dev_attr_obppath.attr);
-}
-
-static void __init sbus_bus_ranges_init(struct device_node *dp, struct sbus_bus *sbus)
-{
- const void *pval;
- int len;
-
- pval = of_get_property(dp, "ranges", &len);
- sbus->num_sbus_ranges = 0;
- if (pval) {
- memcpy(sbus->sbus_ranges, pval, len);
- sbus->num_sbus_ranges =
- len / sizeof(struct linux_prom_ranges);
-
- sbus_arch_bus_ranges_init(dp->parent, sbus);
- }
-}
-
-static void __init __apply_ranges_to_regs(struct linux_prom_ranges *ranges,
- int num_ranges,
- struct linux_prom_registers *regs,
- int num_regs)
-{
- if (num_ranges) {
- int regnum;
-
- for (regnum = 0; regnum < num_regs; regnum++) {
- int rngnum;
-
- for (rngnum = 0; rngnum < num_ranges; rngnum++) {
- if (regs[regnum].which_io == ranges[rngnum].ot_child_space)
- break;
- }
- if (rngnum == num_ranges) {
- /* We used to flag this as an error. Actually
- * some devices do not report the regs as we expect.
- * For example, see SUNW,pln device. In that case
- * the reg property is in a format internal to that
- * node, ie. it is not in the SBUS register space
- * per se. -DaveM
- */
- return;
- }
- regs[regnum].which_io = ranges[rngnum].ot_parent_space;
- regs[regnum].phys_addr -= ranges[rngnum].ot_child_base;
- regs[regnum].phys_addr += ranges[rngnum].ot_parent_base;
- }
- }
-}
-
-static void __init __fixup_regs_sdev(struct sbus_dev *sdev)
-{
- if (sdev->num_registers != 0) {
- struct sbus_dev *parent = sdev->parent;
- int i;
-
- while (parent != NULL) {
- __apply_ranges_to_regs(parent->device_ranges,
- parent->num_device_ranges,
- sdev->reg_addrs,
- sdev->num_registers);
-
- parent = parent->parent;
- }
-
- __apply_ranges_to_regs(sdev->bus->sbus_ranges,
- sdev->bus->num_sbus_ranges,
- sdev->reg_addrs,
- sdev->num_registers);
-
- for (i = 0; i < sdev->num_registers; i++) {
- struct resource *res = &sdev->resource[i];
-
- res->start = sdev->reg_addrs[i].phys_addr;
- res->end = (res->start +
- (unsigned long)sdev->reg_addrs[i].reg_size - 1UL);
- res->flags = IORESOURCE_IO |
- (sdev->reg_addrs[i].which_io & 0xff);
- }
- }
-}
-static void __init sbus_fixup_all_regs(struct sbus_dev *first_sdev)
-{
- struct sbus_dev *sdev;
-
- for (sdev = first_sdev; sdev; sdev = sdev->next) {
- if (sdev->child)
- sbus_fixup_all_regs(sdev->child);
- __fixup_regs_sdev(sdev);
- }
-}
-
-/* We preserve the "probe order" of these bus and device lists to give
- * the same ordering as the old code.
- */
-static void __init sbus_insert(struct sbus_bus *sbus, struct sbus_bus **root)
-{
- while (*root)
- root = &(*root)->next;
- *root = sbus;
- sbus->next = NULL;
+ fill_sbus_device_iommu(sdev);
}
static void __init sdev_insert(struct sbus_dev *sdev, struct sbus_dev **root)
sdev->bus = sbus;
sdev->parent = parent;
- sdev->ofdev.dev.archdata.iommu =
- sbus->ofdev.dev.archdata.iommu;
- sdev->ofdev.dev.archdata.stc =
- sbus->ofdev.dev.archdata.stc;
fill_sbus_device(dp, sdev);
static void __init build_one_sbus(struct device_node *dp, int num_sbus)
{
- struct sbus_bus *sbus;
- unsigned int sbus_clock;
struct device_node *dev_dp;
+ struct sbus_bus *sbus;
sbus = kzalloc(sizeof(struct sbus_bus), GFP_ATOMIC);
if (!sbus)
return;
- sbus_insert(sbus, &sbus_root);
- sbus->prom_node = dp->node;
-
sbus_setup_iommu(sbus, dp);
printk("sbus%d: ", num_sbus);
- sbus_clock = of_getintprop_default(dp, "clock-frequency",
- (25*1000*1000));
- sbus->clock_freq = sbus_clock;
-
- printk("Clock %d.%d MHz\n", (int) ((sbus_clock/1000)/1000),
- (int) (((sbus_clock/1000)%1000 != 0) ?
- (((sbus_clock/1000)%1000) + 1000) : 0));
-
- strcpy(sbus->prom_name, dp->name);
-
- sbus_setup_arch_props(sbus, dp);
-
- sbus_bus_ranges_init(dp, sbus);
-
sbus->ofdev.node = dp;
sbus->ofdev.dev.parent = NULL;
sbus->ofdev.dev.bus = &sbus_bus_type;
}
dev_dp = dev_dp->sibling;
}
-
- sbus_fixup_all_regs(sbus->devices);
-
- dvma_init(sbus);
}
static int __init sbus_init(void)
projects / firefly-linux-kernel-4.4.55.git / blobdiff