Commit 10436481 authored by David S. Miller's avatar David S. Miller
Browse files

sparc: Remove SBUS layer resource and irq handling. 



All the drivers use OF device objects now for this
information.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 33c4655c

arch/sparc/include/asm/sbus_32.h

+0 −15
Original line number Diff line number Diff line
@@ -51,17 +51,6 @@ struct sbus_dev { 
	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;



	struct linux_prom_ranges device_ranges[PROMREG_MAX];

	int num_device_ranges;



	unsigned int irqs[4];

	int num_irqs;

};

#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev)
@@ -73,9 +62,6 @@ struct sbus_bus { 
	int			prom_node;	/* PROM device tree node for this SBus */

	char			prom_name[64];  /* Usually "sbus" or "sbi" */

	int			clock_freq;



	struct linux_prom_ranges sbus_ranges[PROMREG_MAX];

	int num_sbus_ranges;

};

#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev)
@@ -103,7 +89,6 @@ sbus_is_slave(struct sbus_dev *dev) 
void prom_adjust_ranges(struct linux_prom_ranges *, int,

			struct linux_prom_ranges *, 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 int sbus_arch_preinit(void);

extern void sbus_arch_postinit(void);

arch/sparc/include/asm/sbus_64.h

+0 −16
Original line number Diff line number Diff line
@@ -51,17 +51,6 @@ struct sbus_dev { 
	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;



	struct linux_prom_ranges device_ranges[PROMREG_MAX];

	int num_device_ranges;



	unsigned int irqs[4];

	int num_irqs;

};

#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev)
@@ -73,10 +62,6 @@ struct sbus_bus { 
	int			prom_node;      /* OBP node of SBUS	*/

	char			prom_name[64];	/* Usually "sbus" or "sbi" */

	int			clock_freq;



	struct linux_prom_ranges sbus_ranges[PROMREG_MAX];

	int num_sbus_ranges;



	int portid;

};

#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev)
@@ -94,7 +79,6 @@ extern struct sbus_bus *sbus_root; 
	for ((bus) = sbus_root; (bus); (bus) = (bus)->next) \

		for ((device) = (bus)->devices; (device); (device) = (device)->next)



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 int sbus_arch_preinit(void);

extern void sbus_arch_postinit(void);

arch/sparc/kernel/ioport.c

+0 −27
Original line number Diff line number Diff line
@@ -394,33 +394,6 @@ void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t s 
}



/* 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)

{

#ifndef CONFIG_SUN4

arch/sparc64/kernel/sbus.c

+0 −4
Original line number Diff line number Diff line
@@ -650,10 +650,6 @@ fatal_memory_error: 
	prom_printf("sbus_iommu_init: Fatal memory allocation error.\n");

}



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);

drivers/sbus/sbus.c

+1 −123
Original line number Diff line number Diff line
@@ -51,38 +51,11 @@ static void __init fill_sbus_device_iommu(struct sbus_dev *sdev) 
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;

	int 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);

	}



	sd = &sdev->ofdev.dev.archdata;

	sd->prom_node = dp;

	sd->op = &sdev->ofdev;
@@ -105,97 +78,6 @@ static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sde 
	fill_sbus_device_iommu(sdev);

}



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.

 */
@@ -263,8 +145,6 @@ static void __init build_one_sbus(struct device_node *dp, int num_sbus) 


	strcpy(sbus->prom_name, dp->name);



	sbus_bus_ranges_init(dp, sbus);



	sbus->ofdev.node = dp;

	sbus->ofdev.dev.parent = NULL;

	sbus->ofdev.dev.bus = &sbus_bus_type;
@@ -295,8 +175,6 @@ static void __init build_one_sbus(struct device_node *dp, int num_sbus) 
		}

		dev_dp = dev_dp->sibling;

	}



	sbus_fixup_all_regs(sbus->devices);

}



static int __init sbus_init(void)

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