[SBUS]: Rewrite and plug into of_device framework.

I severely apologize, I was still learning how to program
in C when I wrote this stuff 10 years ago...
Signed-off-by: David S. Miller <davem@davemloft.net>

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

arch/sparc64/kernel/sbus.c

@@ -1099,7 +1099,7 @@ static void __init sysio_register_error_handlers(struct sbus_bus *sbus)
 }
 
 /* Boot time initialization. */
-void __init sbus_iommu_init(int __node, struct sbus_bus *sbus)
+static void __init sbus_iommu_init(int __node, struct sbus_bus *sbus)
 {
 	struct linux_prom64_registers *pr;
 	struct device_node *dp;
@@ -1247,3 +1247,32 @@ void sbus_fill_device_irq(struct sbus_dev *sdev)
 		sdev->irqs[0] =	sbus_build_irq(sdev->bus, pri);
 	}
 }
+
+void __init sbus_arch_bus_ranges_init(struct device_node *pn, struct sbus_bus *sbus)
+{
+}
+
+void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
+{
+	sbus_iommu_init(dp->node, sbus);
+}
+
+void __init sbus_setup_arch_props(struct sbus_bus *sbus, struct device_node *dp)
+{
+}
+
+int __init sbus_arch_preinit(void)
+{
+	return 0;
+}
+
+void __init sbus_arch_postinit(void)
+{
+	extern void firetruck_init(void);
+	extern void auxio_probe(void);
+	extern void clock_probe(void);
+
+	firetruck_init();
+	auxio_probe();
+	clock_probe();
+}

include/asm-sparc/sbus.h

@@ -11,7 +11,8 @@
 #include <linux/ioport.h>
 
 #include <asm/oplib.h>
-/* #include <asm/iommu.h> */ /* Unused since we use opaque iommu (|io-unit) */
+#include <asm/prom.h>
+#include <asm/of_device.h>
 #include <asm/scatterlist.h>
 
 /* We scan which devices are on the SBus using the PROM node device
@@ -42,18 +43,19 @@ struct sbus_bus;
 
 /* Linux SBUS device tables */
 struct sbus_dev {
-	struct sbus_bus	*bus;       /* Back ptr to sbus */
-	struct sbus_dev	*next;      /* next device on this SBus or null */
-	struct sbus_dev	*child;     /* For ledma and espdma on sun4m */
-	struct sbus_dev	*parent;    /* Parent device if not toplevel */
-	int prom_node;              /* PROM device tree node for this device */
-	char prom_name[64];         /* PROM device name */
+	struct of_device	ofdev;
+	struct sbus_bus		*bus;
+	struct sbus_dev		*next;
+	struct sbus_dev		*child;
+	struct sbus_dev		*parent;
+	int prom_node;	
+	char prom_name[64];
 	int slot;
 
 	struct resource resource[PROMREG_MAX];
 
 	struct linux_prom_registers reg_addrs[PROMREG_MAX];
-	int num_registers, ranges_applied;
+	int num_registers;
 
 	struct linux_prom_ranges device_ranges[PROMREG_MAX];
 	int num_device_ranges;
@@ -61,9 +63,11 @@ struct sbus_dev {
 	unsigned int irqs[4];
 	int num_irqs;
 };
+#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev)
 
 /* This struct describes the SBus(s) found on this machine. */
 struct sbus_bus {
+	struct of_device	ofdev;
 	void			*iommu;		/* Opaque IOMMU cookie */
 	struct sbus_dev		*devices;	/* Link to devices on this SBus */
 	struct sbus_bus		*next;		/* next SBus, if more than one SBus */
@@ -77,6 +81,7 @@ struct sbus_bus {
 	int devid;
 	int board;
 };
+#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev)
 
 extern struct sbus_bus *sbus_root;
 
@@ -140,4 +145,10 @@ extern void sbus_dma_sync_sg_for_device(struct sbus_dev *, struct scatterlist *,
 BTFIXUPDEF_CALL(unsigned int, sbint_to_irq, struct sbus_dev *sdev, unsigned int)
 #define sbint_to_irq(sdev, sbint) BTFIXUP_CALL(sbint_to_irq)(sdev, sbint)
 
+extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *);
+extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *);
+extern void sbus_setup_arch_props(struct sbus_bus *, struct device_node *);
+extern int sbus_arch_preinit(void);
+extern void sbus_arch_postinit(void);
+
 #endif /* !(_SPARC_SBUS_H) */

include/asm-sparc64/sbus.h

@@ -11,6 +11,8 @@
 #include <linux/ioport.h>
 
 #include <asm/oplib.h>
+#include <asm/prom.h>
+#include <asm/of_device.h>
 #include <asm/iommu.h>
 #include <asm/scatterlist.h>
 
@@ -42,18 +44,19 @@ struct sbus_bus;
 
 /* Linux SBUS device tables */
 struct sbus_dev {
-	struct sbus_bus *bus;	/* Our toplevel parent SBUS	*/
-	struct sbus_dev *next;	/* Chain of siblings		*/
-	struct sbus_dev *child;	/* Chain of children		*/
-	struct sbus_dev *parent;/* Parent device if not toplevel*/
-	int prom_node;		/* OBP node of this device	*/
-	char prom_name[64];	/* OBP device name property	*/
-	int slot;		/* SBUS slot number		*/
+	struct of_device	ofdev;
+	struct sbus_bus		*bus;
+	struct sbus_dev		*next;
+	struct sbus_dev		*child;
+	struct sbus_dev		*parent;
+	int prom_node;	
+	char prom_name[64];
+	int slot;
 
 	struct resource resource[PROMREG_MAX];
 
 	struct linux_prom_registers reg_addrs[PROMREG_MAX];
-	int num_registers, ranges_applied;
+	int num_registers;
 
 	struct linux_prom_ranges device_ranges[PROMREG_MAX];
 	int num_device_ranges;
@@ -61,9 +64,11 @@ struct sbus_dev {
 	unsigned int irqs[4];
 	int num_irqs;
 };
+#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev)
 
 /* This struct describes the SBus(s) found on this machine. */
 struct sbus_bus {
+	struct of_device	ofdev;
 	void			*iommu;		/* Opaque IOMMU cookie	*/
 	struct sbus_dev		*devices;	/* Tree of SBUS devices	*/
 	struct sbus_bus		*next;		/* Next SBUS in system	*/
@@ -77,6 +82,7 @@ struct sbus_bus {
 	int portid;
 	void *starfire_cookie;
 };
+#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev)
 
 extern struct sbus_bus *sbus_root;
 
@@ -120,4 +126,10 @@ extern void sbus_dma_sync_sg_for_cpu(struct sbus_dev *, struct scatterlist *, in
 #define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu
 extern void sbus_dma_sync_sg_for_device(struct sbus_dev *, struct scatterlist *, int, int);
 
+extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *);
+extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *);
+extern void sbus_setup_arch_props(struct sbus_bus *, struct device_node *);
+extern int sbus_arch_preinit(void);
+extern void sbus_arch_postinit(void);
+
 #endif /* !(_SPARC64_SBUS_H) */