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Diffstat (limited to 'drivers/sbus/sbus.c')
-rw-r--r--drivers/sbus/sbus.c316
1 files changed, 0 insertions, 316 deletions
diff --git a/drivers/sbus/sbus.c b/drivers/sbus/sbus.c
deleted file mode 100644
index 9c129248466..00000000000
--- a/drivers/sbus/sbus.c
+++ /dev/null
@@ -1,316 +0,0 @@
-/* sbus.c: SBus support routines.
- *
- * Copyright (C) 1995, 2006 David S. Miller (davem@davemloft.net)
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/of_device.h>
-
-#include <asm/system.h>
-#include <asm/sbus.h>
-#include <asm/dma.h>
-#include <asm/oplib.h>
-#include <asm/prom.h>
-#include <asm/bpp.h>
-#include <asm/irq.h>
-
-static ssize_t
-show_sbusobppath_attr(struct device * dev, struct device_attribute * attr, char * buf)
-{
- struct sbus_dev *sbus;
-
- sbus = to_sbus_device(dev);
-
- return snprintf (buf, PAGE_SIZE, "%s\n", sbus->ofdev.node->full_name);
-}
-
-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)
-{
- 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);
-
- base = (unsigned long) sdev->reg_addrs[0].phys_addr;
-
- /* 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;
- }
-
- 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);
- }
-
- sbus_fill_device_irq(sdev);
-
- sd = &sdev->ofdev.dev.archdata;
- sd->prom_node = dp;
- sd->op = &sdev->ofdev;
-
- sdev->ofdev.node = dp;
- if (sdev->parent)
- sdev->ofdev.dev.parent = &sdev->parent->ofdev.dev;
- else
- sdev->ofdev.dev.parent = &sdev->bus->ofdev.dev;
- sdev->ofdev.dev.bus = &sbus_bus_type;
- dev_set_name(&sdev->ofdev.dev, "sbus[%08x]", dp->node);
-
- if (of_device_register(&sdev->ofdev) != 0)
- printk(KERN_DEBUG "sbus: device registration error for %s!\n",
- dp->path_component_name);
-
- /* 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;
-}
-
-static void __init sdev_insert(struct sbus_dev *sdev, struct sbus_dev **root)
-{
- while (*root)
- root = &(*root)->next;
- *root = sdev;
- sdev->next = NULL;
-}
-
-static void __init walk_children(struct device_node *dp, struct sbus_dev *parent, struct sbus_bus *sbus)
-{
- dp = dp->child;
- while (dp) {
- struct sbus_dev *sdev;
-
- sdev = kzalloc(sizeof(struct sbus_dev), GFP_ATOMIC);
- if (sdev) {
- sdev_insert(sdev, &parent->child);
-
- 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);
-
- walk_children(dp, sdev, sbus);
- }
- dp = dp->sibling;
- }
-}
-
-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;
-
- 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_set_name(&sbus->ofdev.dev, "sbus%d", num_sbus);
-
- if (of_device_register(&sbus->ofdev) != 0)
- printk(KERN_DEBUG "sbus: device registration error for %s!\n",
- dev_name(&sbus->ofdev.dev));
-
- dev_dp = dp->child;
- while (dev_dp) {
- struct sbus_dev *sdev;
-
- sdev = kzalloc(sizeof(struct sbus_dev), GFP_ATOMIC);
- if (sdev) {
- sdev_insert(sdev, &sbus->devices);
-
- sdev->bus = sbus;
- sdev->parent = NULL;
- sdev->ofdev.dev.archdata.iommu =
- sbus->ofdev.dev.archdata.iommu;
- sdev->ofdev.dev.archdata.stc =
- sbus->ofdev.dev.archdata.stc;
-
- fill_sbus_device(dev_dp, sdev);
-
- walk_children(dev_dp, sdev, sbus);
- }
- dev_dp = dev_dp->sibling;
- }
-
- sbus_fixup_all_regs(sbus->devices);
-
- dvma_init(sbus);
-}
-
-static int __init sbus_init(void)
-{
- struct device_node *dp;
- const char *sbus_name = "sbus";
- int num_sbus = 0;
-
- if (sbus_arch_preinit())
- return 0;
-
- if (sparc_cpu_model == sun4d)
- sbus_name = "sbi";
-
- for_each_node_by_name(dp, sbus_name) {
- build_one_sbus(dp, num_sbus);
- num_sbus++;
-
- }
-
- sbus_arch_postinit();
-
- return 0;
-}
-
-subsys_initcall(sbus_init);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-08 21:49:52 +0000