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-rw-r--r--arch/sparc/kernel/ioport.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 00cf41182912..ae4c667c906f 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -39,6 +39,8 @@
#include <asm/io.h>
#include <asm/vaddrs.h>
#include <asm/oplib.h>
+#include <asm/prom.h>
+#include <asm/sbus.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
#include <asm/dma.h>
@@ -458,6 +460,89 @@ void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev, struct scatterlist *sg,
{
printk("sbus_dma_sync_sg_for_device: not implemented yet\n");
}
+
+/* Support code for sbus_init(). */
+/*
+ * XXX This functions appears to be a distorted version of
+ * prom_sbus_ranges_init(), with all sun4d stuff cut away.
+ * Ask DaveM what is going on here, how is sun4d supposed to work... XXX
+ */
+/* added back sun4d patch from Thomas Bogendoerfer - should be OK (crn) */
+void __init sbus_arch_bus_ranges_init(struct device_node *pn, struct sbus_bus *sbus)
+{
+ int parent_node = pn->node;
+
+ if (sparc_cpu_model == sun4d) {
+ struct linux_prom_ranges iounit_ranges[PROMREG_MAX];
+ int num_iounit_ranges, len;
+
+ len = prom_getproperty(parent_node, "ranges",
+ (char *) iounit_ranges,
+ sizeof (iounit_ranges));
+ if (len != -1) {
+ num_iounit_ranges =
+ (len / sizeof(struct linux_prom_ranges));
+ prom_adjust_ranges(sbus->sbus_ranges,
+ sbus->num_sbus_ranges,
+ iounit_ranges, num_iounit_ranges);
+ }
+ }
+}
+
+void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
+{
+ struct device_node *parent = dp->parent;
+
+ if (sparc_cpu_model != sun4d &&
+ parent != NULL &&
+ !strcmp(parent->name, "iommu")) {
+ extern void iommu_init(int iommu_node, struct sbus_bus *sbus);
+
+ iommu_init(parent->node, sbus);
+ }
+
+ if (sparc_cpu_model == sun4d) {
+ extern void iounit_init(int sbi_node, int iounit_node,
+ struct sbus_bus *sbus);
+
+ iounit_init(dp->node, parent->node, sbus);
+ }
+}
+
+void __init sbus_setup_arch_props(struct sbus_bus *sbus, struct device_node *dp)
+{
+ if (sparc_cpu_model == sun4d) {
+ struct device_node *parent = dp->parent;
+
+ sbus->devid = of_getintprop_default(parent, "device-id", 0);
+ sbus->board = of_getintprop_default(parent, "board#", 0);
+ }
+}
+
+int __init sbus_arch_preinit(void)
+{
+ extern void register_proc_sparc_ioport(void);
+
+ register_proc_sparc_ioport();
+
+#ifdef CONFIG_SUN4
+ {
+ extern void sun4_dvma_init(void);
+ sun4_dvma_init();
+ }
+ return 1;
+#else
+ return 0;
+#endif
+}
+
+void __init sbus_arch_postinit(void)
+{
+ if (sparc_cpu_model == sun4d) {
+ extern void sun4d_init_sbi_irq(void);
+ sun4d_init_sbi_irq();
+ }
+}
#endif /* CONFIG_SBUS */
#ifdef CONFIG_PCI