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sparc: Kill EBUS driver layer.

Browse Source 
All that remains is the EBUS DMA programming library for
sparc64.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-30 00:36:11 -07:00
parent 75081322c9
commit 356d164757
11 changed files with 6 additions and 877 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/sparc/include/asm/ebus.h
View File

@ -1,8 +0,0 @@
#ifndef ___ASM_SPARC_EBUS_H
#define ___ASM_SPARC_EBUS_H
#if defined(__sparc__) && defined(__arch64__)
#include <asm/ebus_64.h>
#else
#include <asm/ebus_32.h>
#endif
#endif

99
arch/sparc/include/asm/ebus_32.h
View File

@ -1,99 +0,0 @@
/*
* ebus.h: PCI to Ebus pseudo driver software state.
*
* Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
*
* Adopted for sparc by V. Roganov and G. Raiko.
*/
#ifndef __SPARC_EBUS_H
#define __SPARC_EBUS_H
#ifndef _LINUX_IOPORT_H
#include <linux/ioport.h>
#endif
#include <linux/of_device.h>
#include <asm/oplib.h>
#include <asm/prom.h>
struct linux_ebus_child {
struct linux_ebus_child *next;
struct linux_ebus_device *parent;
struct linux_ebus *bus;
struct device_node *prom_node;
struct resource resource[PROMREG_MAX];
int num_addrs;
unsigned int irqs[PROMINTR_MAX];
int num_irqs;
};
struct linux_ebus_device {
struct of_device ofdev;
struct linux_ebus_device *next;
struct linux_ebus_child *children;
struct linux_ebus *bus;
struct device_node *prom_node;
struct resource resource[PROMREG_MAX];
int num_addrs;
unsigned int irqs[PROMINTR_MAX];
int num_irqs;
};
#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev)
struct linux_ebus {
struct of_device ofdev;
struct linux_ebus *next;
struct linux_ebus_device *devices;
struct linux_pbm_info *parent;
struct pci_dev *self;
struct device_node *prom_node;
};
#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev)
struct linux_ebus_dma {
unsigned int dcsr;
unsigned int dacr;
unsigned int dbcr;
};
#define EBUS_DCSR_INT_PEND 0x00000001
#define EBUS_DCSR_ERR_PEND 0x00000002
#define EBUS_DCSR_DRAIN 0x00000004
#define EBUS_DCSR_INT_EN 0x00000010
#define EBUS_DCSR_RESET 0x00000080
#define EBUS_DCSR_WRITE 0x00000100
#define EBUS_DCSR_EN_DMA 0x00000200
#define EBUS_DCSR_CYC_PEND 0x00000400
#define EBUS_DCSR_DIAG_RD_DONE 0x00000800
#define EBUS_DCSR_DIAG_WR_DONE 0x00001000
#define EBUS_DCSR_EN_CNT 0x00002000
#define EBUS_DCSR_TC 0x00004000
#define EBUS_DCSR_DIS_CSR_DRN 0x00010000
#define EBUS_DCSR_BURST_SZ_MASK 0x000c0000
#define EBUS_DCSR_BURST_SZ_1 0x00080000
#define EBUS_DCSR_BURST_SZ_4 0x00000000
#define EBUS_DCSR_BURST_SZ_8 0x00040000
#define EBUS_DCSR_BURST_SZ_16 0x000c0000
#define EBUS_DCSR_DIAG_EN 0x00100000
#define EBUS_DCSR_DIS_ERR_PEND 0x00400000
#define EBUS_DCSR_TCI_DIS 0x00800000
#define EBUS_DCSR_EN_NEXT 0x01000000
#define EBUS_DCSR_DMA_ON 0x02000000
#define EBUS_DCSR_A_LOADED 0x04000000
#define EBUS_DCSR_NA_LOADED 0x08000000
#define EBUS_DCSR_DEV_ID_MASK 0xf0000000
extern struct linux_ebus *ebus_chain;
extern void ebus_init(void);
#define for_each_ebus(bus) \
for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
#define for_each_ebusdev(dev, bus) \
for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
#define for_each_edevchild(dev, child) \
for((child) = (dev)->children; (child); (child) = (child)->next)
#endif /* !(__SPARC_EBUS_H) */

64
arch/sparc/include/asm/ebus_64.h
View File

@ -1,64 +0,0 @@
/*
* ebus.h: PCI to Ebus pseudo driver software state.
*
* Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1999 David S. Miller (davem@redhat.com)
*/
#ifndef __SPARC64_EBUS_H
#define __SPARC64_EBUS_H
#include <linux/of_device.h>
#include <asm/oplib.h>
#include <asm/prom.h>
struct linux_ebus_child {
struct linux_ebus_child *next;
struct linux_ebus_device *parent;
struct linux_ebus *bus;
struct device_node *prom_node;
struct resource resource[PROMREG_MAX];
int num_addrs;
unsigned int irqs[PROMINTR_MAX];
int num_irqs;
};
struct linux_ebus_device {
struct of_device ofdev;
struct linux_ebus_device *next;
struct linux_ebus_child *children;
struct linux_ebus *bus;
struct device_node *prom_node;
struct resource resource[PROMREG_MAX];
int num_addrs;
unsigned int irqs[PROMINTR_MAX];
int num_irqs;
};
#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev)
struct linux_ebus {
struct of_device ofdev;
struct linux_ebus *next;
struct linux_ebus_device *devices;
struct pci_dev *self;
int index;
int is_rio;
struct device_node *prom_node;
};
#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev)
extern struct linux_ebus *ebus_chain;
extern void ebus_init(void);
#define for_each_ebus(bus) \
for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
#define for_each_ebusdev(dev, bus) \
for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
#define for_each_edevchild(dev, child) \
for((child) = (dev)->children; (child); (child) = (child)->next)
#endif /* !(__SPARC64_EBUS_H) */

1
arch/sparc/kernel/Makefile
View File

@ -21,7 +21,6 @@ obj-$(CONFIG_PCI) += pcic.o
obj-$(CONFIG_SUN4) += sun4setup.o
obj-$(CONFIG_SMP) += trampoline.o smp.o sun4m_smp.o sun4d_smp.o
obj-$(CONFIG_SUN_AUXIO) += auxio.o
obj-$(CONFIG_PCI) += ebus.o
obj-$(CONFIG_SUN_PM) += apc.o pmc.o
obj-$(CONFIG_MODULES) += module.o sparc_ksyms.o
obj-$(CONFIG_SPARC_LED) += led.o

392
arch/sparc/kernel/ebus.c
View File

@ -1,392 +0,0 @@
/*
* ebus.c: PCI to EBus bridge device.
*
* Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
*
* Adopted for sparc by V. Roganov and G. Raiko.
* Fixes for different platforms by Pete Zaitcev.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <asm/system.h>
#include <asm/page.h>
#include <asm/pbm.h>
#include <asm/ebus.h>
#include <asm/io.h>
#include <asm/oplib.h>
#include <asm/prom.h>
struct linux_ebus *ebus_chain = NULL;
/* We are together with pcic.c under CONFIG_PCI. */
extern unsigned int pcic_pin_to_irq(unsigned int, const char *name);
/*
* IRQ Blacklist
* Here we list PROMs and systems that are known to supply crap as IRQ numbers.
*/
struct ebus_device_irq {
char *name;
unsigned int pin;
};
struct ebus_system_entry {
char *esname;
struct ebus_device_irq *ipt;
};
static struct ebus_device_irq je1_1[] = {
{ "8042", 3 },
{ "SUNW,CS4231", 0 },
{ "parallel", 0 },
{ "se", 2 },
{ NULL, 0 }
};
/*
* Gleb's JE1 supplied reasonable pin numbers, but mine did not (OBP 2.32).
* Blacklist the sucker... Note that Gleb's system will work.
*/
static struct ebus_system_entry ebus_blacklist[] = {
{ "SUNW,JavaEngine1", je1_1 },
{ NULL, NULL }
};
static struct ebus_device_irq *ebus_blackp = NULL;
/*
*/
static inline unsigned long ebus_alloc(size_t size)
{
return (unsigned long)kmalloc(size, GFP_ATOMIC);
}
/*
*/
static int __init ebus_blacklist_irq(const char *name)
{
struct ebus_device_irq *dp;
if ((dp = ebus_blackp) != NULL) {
for (; dp->name != NULL; dp++) {
if (strcmp(name, dp->name) == 0) {
return pcic_pin_to_irq(dp->pin, name);
}
}
}
return 0;
}
static void __init fill_ebus_child(struct device_node *dp,
struct linux_ebus_child *dev)
{
const int *regs;
const int *irqs;
int i, len;
dev->prom_node = dp;
regs = of_get_property(dp, "reg", &len);
if (!regs)
len = 0;
dev->num_addrs = len / sizeof(regs[0]);
for (i = 0; i < dev->num_addrs; i++) {
if (regs[i] >= dev->parent->num_addrs) {
prom_printf("UGH: property for %s was %d, need < %d\n",
dev->prom_node->name, len,
dev->parent->num_addrs);
panic(__func__);
}
/* XXX resource */
dev->resource[i].start =
dev->parent->resource[regs[i]].start;
}
for (i = 0; i < PROMINTR_MAX; i++)
dev->irqs[i] = PCI_IRQ_NONE;
if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
dev->num_irqs = 1;
} else {
irqs = of_get_property(dp, "interrupts", &len);
if (!irqs) {
dev->num_irqs = 0;
dev->irqs[0] = 0;
if (dev->parent->num_irqs != 0) {
dev->num_irqs = 1;
dev->irqs[0] = dev->parent->irqs[0];
}
} else {
dev->num_irqs = len / sizeof(irqs[0]);
if (irqs[0] == 0 || irqs[0] >= 8) {
/*
* XXX Zero is a valid pin number...
* This works as long as Ebus is not wired
* to INTA#.
*/
printk("EBUS: %s got bad irq %d from PROM\n",
dev->prom_node->name, irqs[0]);
dev->num_irqs = 0;
dev->irqs[0] = 0;
} else {
dev->irqs[0] =
pcic_pin_to_irq(irqs[0],
dev->prom_node->name);
}
}
}
}
static void __init fill_ebus_device(struct device_node *dp,
struct linux_ebus_device *dev)
{
const struct linux_prom_registers *regs;
struct linux_ebus_child *child;
struct dev_archdata *sd;
const int *irqs;
int i, n, len;
unsigned long baseaddr;
dev->prom_node = dp;
regs = of_get_property(dp, "reg", &len);
if (!regs)
len = 0;
if (len % sizeof(struct linux_prom_registers)) {
prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
dev->prom_node->name, len,
(int)sizeof(struct linux_prom_registers));
panic(__func__);
}
dev->num_addrs = len / sizeof(struct linux_prom_registers);
for (i = 0; i < dev->num_addrs; i++) {
/*
* XXX Collect JE-1 PROM
*
* Example - JS-E with 3.11:
* /ebus
* regs
* 0x00000000, 0x0, 0x00000000, 0x0, 0x00000000,
* 0x82000010, 0x0, 0xf0000000, 0x0, 0x01000000,
* 0x82000014, 0x0, 0x38800000, 0x0, 0x00800000,
* ranges
* 0x00, 0x00000000, 0x02000010, 0x0, 0x0, 0x01000000,
* 0x01, 0x01000000, 0x02000014, 0x0, 0x0, 0x00800000,
* /ebus/8042
* regs
* 0x00000001, 0x00300060, 0x00000008,
* 0x00000001, 0x00300060, 0x00000008,
*/
n = regs[i].which_io;
if (n >= 4) {
/* XXX This is copied from old JE-1 by Gleb. */
n = (regs[i].which_io - 0x10) >> 2;
} else {
;
}
/*
* XXX Now as we have regions, why don't we make an on-demand allocation...
*/
dev->resource[i].start = 0;
if ((baseaddr = dev->bus->self->resource[n].start +
regs[i].phys_addr) != 0) {
/* dev->resource[i].name = dev->prom_name; */
if ((baseaddr = (unsigned long) ioremap(baseaddr,
regs[i].reg_size)) == 0) {
panic("ebus: unable to remap dev %s",
dev->prom_node->name);
}
}
dev->resource[i].start = baseaddr; /* XXX Unaligned */
}
for (i = 0; i < PROMINTR_MAX; i++)
dev->irqs[i] = PCI_IRQ_NONE;
if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
dev->num_irqs = 1;
} else {
irqs = of_get_property(dp, "interrupts", &len);
if (!irqs) {
dev->num_irqs = 0;
if ((dev->irqs[0] = dev->bus->self->irq) != 0) {
dev->num_irqs = 1;
/* P3 */ /* printk("EBUS: child %s irq %d from parent\n", dev->prom_name, dev->irqs[0]); */
}
} else {
dev->num_irqs = 1; /* dev->num_irqs = len / sizeof(irqs[0]); */
if (irqs[0] == 0 || irqs[0] >= 8) {
/* See above for the parent. XXX */
printk("EBUS: %s got bad irq %d from PROM\n",
dev->prom_node->name, irqs[0]);
dev->num_irqs = 0;
dev->irqs[0] = 0;
} else {
dev->irqs[0] =
pcic_pin_to_irq(irqs[0],
dev->prom_node->name);
}
}
}
sd = &dev->ofdev.dev.archdata;
sd->prom_node = dp;
sd->op = &dev->ofdev;
sd->iommu = dev->bus->ofdev.dev.parent->archdata.iommu;
dev->ofdev.node = dp;
dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
dev->ofdev.dev.bus = &ebus_bus_type;
sprintf(dev->ofdev.dev.bus_id, "ebus[%08x]", dp->node);
/* Register with core */
if (of_device_register(&dev->ofdev) != 0)
printk(KERN_DEBUG "ebus: device registration error for %s!\n",
dp->path_component_name);
if ((dp = dp->child) != NULL) {
dev->children = (struct linux_ebus_child *)
ebus_alloc(sizeof(struct linux_ebus_child));
child = dev->children;
child->next = NULL;
child->parent = dev;
child->bus = dev->bus;
fill_ebus_child(dp, child);
while ((dp = dp->sibling) != NULL) {
child->next = (struct linux_ebus_child *)
ebus_alloc(sizeof(struct linux_ebus_child));
child = child->next;
child->next = NULL;
child->parent = dev;
child->bus = dev->bus;
fill_ebus_child(dp, child);
}
}
}
void __init ebus_init(void)
{
const struct linux_prom_pci_registers *regs;
struct linux_pbm_info *pbm;
struct linux_ebus_device *dev;
struct linux_ebus *ebus;
struct ebus_system_entry *sp;
struct pci_dev *pdev;
struct pcidev_cookie *cookie;
struct device_node *dp;
struct resource *p;
unsigned short pci_command;
int len, reg, nreg;
int num_ebus = 0;
dp = of_find_node_by_path("/");
for (sp = ebus_blacklist; sp->esname != NULL; sp++) {
if (strcmp(dp->name, sp->esname) == 0) {
ebus_blackp = sp->ipt;
break;
}
}
pdev = pci_get_device(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_EBUS, NULL);
if (!pdev)
return;
cookie = pdev->sysdata;
dp = cookie->prom_node;
ebus_chain = ebus = (struct linux_ebus *)
ebus_alloc(sizeof(struct linux_ebus));
ebus->next = NULL;
while (dp) {
struct device_node *nd;
ebus->prom_node = dp;
ebus->self = pdev;
ebus->parent = pbm = cookie->pbm;
/* Enable BUS Master. */
pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
pci_command |= PCI_COMMAND_MASTER;
pci_write_config_word(pdev, PCI_COMMAND, pci_command);
regs = of_get_property(dp, "reg", &len);
if (!regs) {
prom_printf("%s: can't find reg property\n",
__func__);
prom_halt();
}
nreg = len / sizeof(struct linux_prom_pci_registers);
p = &ebus->self->resource[0];
for (reg = 0; reg < nreg; reg++) {
if (!(regs[reg].which_io & 0x03000000))
continue;
(p++)->start = regs[reg].phys_lo;
}
ebus->ofdev.node = dp;
ebus->ofdev.dev.parent = &pdev->dev;
ebus->ofdev.dev.bus = &ebus_bus_type;
sprintf(ebus->ofdev.dev.bus_id, "ebus%d", num_ebus);
/* Register with core */
if (of_device_register(&ebus->ofdev) != 0)
printk(KERN_DEBUG "ebus: device registration error for %s!\n",
dp->path_component_name);
nd = dp->child;
if (!nd)
goto next_ebus;
ebus->devices = (struct linux_ebus_device *)
ebus_alloc(sizeof(struct linux_ebus_device));
dev = ebus->devices;
dev->next = NULL;
dev->children = NULL;
dev->bus = ebus;
fill_ebus_device(nd, dev);
while ((nd = nd->sibling) != NULL) {
dev->next = (struct linux_ebus_device *)
ebus_alloc(sizeof(struct linux_ebus_device));
dev = dev->next;
dev->next = NULL;
dev->children = NULL;
dev->bus = ebus;
fill_ebus_device(nd, dev);
}
next_ebus:
pdev = pci_get_device(PCI_VENDOR_ID_SUN,
PCI_DEVICE_ID_SUN_EBUS, pdev);
if (!pdev)
break;
cookie = pdev->sysdata;
dp = cookie->prom_node;
ebus->next = (struct linux_ebus *)
ebus_alloc(sizeof(struct linux_ebus));
ebus = ebus->next;
ebus->next = NULL;
++num_ebus;
}
if (pdev)
pci_dev_put(pdev);
}

8
arch/sparc/kernel/pcic.c
View File

@ -17,7 +17,6 @@
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <asm/ebus.h>
#include <asm/swift.h> /* for cache flushing. */
#include <asm/io.h>
@ -429,7 +428,6 @@ static int __init pcic_init(void)
pcic_pbm_scan_bus(pcic);
ebus_init();
return 0;
}
@ -492,10 +490,6 @@ static void pcic_map_pci_device(struct linux_pcic *pcic,
* do ioremap() before accessing PC-style I/O,
* we supply virtual, ready to access address.
*
* Ebus devices do not come here even if
* CheerIO makes a similar conversion.
* See ebus.c for details.
*
* Note that request_region()
* works for these devices.
*
@ -676,7 +670,7 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
}
/*
* pcic_pin_to_irq() is exported to ebus.c.
* pcic_pin_to_irq() is exported to bus probing code
*/
unsigned int
pcic_pin_to_irq(unsigned int pin, const char *name)

4
arch/sparc/kernel/sparc_ksyms.c
View File

@ -45,9 +45,6 @@
#ifdef CONFIG_SBUS
#include <asm/dma.h>
#endif
#ifdef CONFIG_PCI
#include <asm/ebus.h>
#endif
#include <asm/io-unit.h>
#include <asm/bug.h>
@ -152,7 +149,6 @@ EXPORT_SYMBOL(BTFIXUP_CALL(pgprot_noncached));
EXPORT_SYMBOL(sbus_set_sbus64);
#endif
#ifdef CONFIG_PCI
EXPORT_SYMBOL(ebus_chain);
EXPORT_SYMBOL(insb);
EXPORT_SYMBOL(outsb);
EXPORT_SYMBOL(insw);

4
arch/sparc64/kernel/Makefile
View File

@ -11,12 +11,12 @@ obj-y := process.o setup.o cpu.o idprom.o \
traps.o auxio.o una_asm.o sysfs.o iommu.o \
irq.o ptrace.o time.o sys_sparc.o signal.o \
unaligned.o central.o starfire.o \
power.o sbus.o sparc64_ksyms.o \
power.o sbus.o sparc64_ksyms.o ebus.o \
visemul.o prom.o of_device.o hvapi.o sstate.o mdesc.o
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_PCI) += ebus.o pci.o pci_common.o \
obj-$(CONFIG_PCI) += pci.o pci_common.o \
pci_psycho.o pci_sabre.o pci_schizo.o \
pci_sun4v.o pci_sun4v_asm.o pci_fire.o
obj-$(CONFIG_PCI_MSI) += pci_msi.o

295
arch/sparc64/kernel/ebus.c
View File

@ -1,5 +1,4 @@
/*
* ebus.c: PCI to EBus bridge device.
/* ebus.c: EBUS DMA library code.
*
* Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1999 David S. Miller (davem@redhat.com)
@ -9,24 +8,12 @@
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/of_device.h>
#include <asm/system.h>
#include <asm/page.h>
#include <asm/ebus.h>
#include <asm/ebus_dma.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/irq.h>
#include <asm/io.h>
/* EBUS dma library. */
#define EBDMA_CSR 0x00UL /* Control/Status */
#define EBDMA_ADDR 0x04UL /* DMA Address */
#define EBDMA_COUNT 0x08UL /* DMA Count */
@ -268,283 +255,3 @@ void ebus_dma_enable(struct ebus_dma_info *p, int on)
spin_unlock_irqrestore(&p->lock, flags);
}
EXPORT_SYMBOL(ebus_dma_enable);
struct linux_ebus *ebus_chain = NULL;
static inline void *ebus_alloc(size_t size)
{
void *mem;
mem = kzalloc(size, GFP_ATOMIC);
if (!mem)
panic("ebus_alloc: out of memory");
return mem;
}
static void __init fill_ebus_child(struct device_node *dp,
struct linux_ebus_child *dev,
int non_standard_regs)
{
struct of_device *op;
const int *regs;
int i, len;
dev->prom_node = dp;
printk(" (%s)", dp->name);
regs = of_get_property(dp, "reg", &len);
if (!regs)
dev->num_addrs = 0;
else
dev->num_addrs = len / sizeof(regs[0]);
if (non_standard_regs) {
/* This is to handle reg properties which are not
* in the parent relative format. One example are
* children of the i2c device on CompactPCI systems.
*
* So, for such devices we just record the property
* raw in the child resources.
*/
for (i = 0; i < dev->num_addrs; i++)
dev->resource[i].start = regs[i];
} else {
for (i = 0; i < dev->num_addrs; i++) {
int rnum = regs[i];
if (rnum >= dev->parent->num_addrs) {
prom_printf("UGH: property for %s was %d, need < %d\n",
dp->name, len, dev->parent->num_addrs);
prom_halt();
}
dev->resource[i].start = dev->parent->resource[i].start;
dev->resource[i].end = dev->parent->resource[i].end;
dev->resource[i].flags = IORESOURCE_MEM;
dev->resource[i].name = dp->name;
}
}
op = of_find_device_by_node(dp);
if (!op) {
dev->num_irqs = 0;
} else {
dev->num_irqs = op->num_irqs;
for (i = 0; i < dev->num_irqs; i++)
dev->irqs[i] = op->irqs[i];
}
if (!dev->num_irqs) {
/*
* Oh, well, some PROMs don't export interrupts
* property to children of EBus devices...
*
* Be smart about PS/2 keyboard and mouse.
*/
if (!strcmp(dev->parent->prom_node->name, "8042")) {
if (!strcmp(dev->prom_node->name, "kb_ps2")) {
dev->num_irqs = 1;
dev->irqs[0] = dev->parent->irqs[0];
} else {
dev->num_irqs = 1;
dev->irqs[0] = dev->parent->irqs[1];
}
}
}
}
static int __init child_regs_nonstandard(struct linux_ebus_device *dev)
{
if (!strcmp(dev->prom_node->name, "i2c") ||
!strcmp(dev->prom_node->name, "SUNW,lombus"))
return 1;
return 0;
}
static void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *dev)
{
struct linux_ebus_child *child;
struct dev_archdata *sd;
struct of_device *op;
int i, len;
dev->prom_node = dp;
printk(" [%s", dp->name);
op = of_find_device_by_node(dp);
if (!op) {
dev->num_addrs = 0;
dev->num_irqs = 0;
} else {
const int *regs = of_get_property(dp, "reg", &len);
if (!regs)
len = 0;
dev->num_addrs = len / sizeof(struct linux_prom_registers);
for (i = 0; i < dev->num_addrs; i++)
memcpy(&dev->resource[i],
&op->resource[i],
sizeof(struct resource));
dev->num_irqs = op->num_irqs;
for (i = 0; i < dev->num_irqs; i++)
dev->irqs[i] = op->irqs[i];
}
sd = &dev->ofdev.dev.archdata;
sd->prom_node = dp;
sd->op = &dev->ofdev;
sd->iommu = dev->bus->ofdev.dev.parent->archdata.iommu;
sd->stc = dev->bus->ofdev.dev.parent->archdata.stc;
sd->numa_node = dev->bus->ofdev.dev.parent->archdata.numa_node;
dev->ofdev.node = dp;
dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
dev->ofdev.dev.bus = &ebus_bus_type;
dev_set_name(&dev->ofdev.dev, "ebus[%08x]", dp->node);
/* Register with core */
if (of_device_register(&dev->ofdev) != 0)
printk(KERN_DEBUG "ebus: device registration error for %s!\n",
dp->path_component_name);
dp = dp->child;
if (dp) {
printk(" ->");
dev->children = ebus_alloc(sizeof(struct linux_ebus_child));
child = dev->children;
child->next = NULL;
child->parent = dev;
child->bus = dev->bus;
fill_ebus_child(dp, child,
child_regs_nonstandard(dev));
while ((dp = dp->sibling) != NULL) {
child->next = ebus_alloc(sizeof(struct linux_ebus_child));
child = child->next;
child->next = NULL;
child->parent = dev;
child->bus = dev->bus;
fill_ebus_child(dp, child,
child_regs_nonstandard(dev));
}
}
printk("]");
}
static struct pci_dev *find_next_ebus(struct pci_dev *start, int *is_rio_p)
{
struct pci_dev *pdev = start;
while ((pdev = pci_get_device(PCI_VENDOR_ID_SUN, PCI_ANY_ID, pdev)))
if (pdev->device == PCI_DEVICE_ID_SUN_EBUS ||
pdev->device == PCI_DEVICE_ID_SUN_RIO_EBUS)
break;
*is_rio_p = !!(pdev && (pdev->device == PCI_DEVICE_ID_SUN_RIO_EBUS));
return pdev;
}
void __init ebus_init(void)
{
struct linux_ebus_device *dev;
struct linux_ebus *ebus;
struct pci_dev *pdev;
struct device_node *dp;
int is_rio;
int num_ebus = 0;
pdev = find_next_ebus(NULL, &is_rio);
if (!pdev) {
printk("ebus: No EBus's found.\n");
return;
}
dp = pci_device_to_OF_node(pdev);
ebus_chain = ebus = ebus_alloc(sizeof(struct linux_ebus));
ebus->next = NULL;
ebus->is_rio = is_rio;
while (dp) {
struct device_node *child;
/* SUNW,pci-qfe uses four empty ebuses on it.
I think we should not consider them here,
as they have half of the properties this
code expects and once we do PCI hot-plug,
we'd have to tweak with the ebus_chain
in the runtime after initialization. -jj */
if (!dp->child) {
pdev = find_next_ebus(pdev, &is_rio);
if (!pdev) {
if (ebus == ebus_chain) {
ebus_chain = NULL;
printk("ebus: No EBus's found.\n");
return;
}
break;
}
ebus->is_rio = is_rio;
dp = pci_device_to_OF_node(pdev);
continue;
}
printk("ebus%d:", num_ebus);
ebus->index = num_ebus;
ebus->prom_node = dp;
ebus->self = pdev;
ebus->ofdev.node = dp;
ebus->ofdev.dev.parent = &pdev->dev;
ebus->ofdev.dev.bus = &ebus_bus_type;
dev_set_name(&ebus->ofdev.dev, "ebus%d", num_ebus);
/* Register with core */
if (of_device_register(&ebus->ofdev) != 0)
printk(KERN_DEBUG "ebus: device registration error for %s!\n",
dp->path_component_name);
child = dp->child;
if (!child)
goto next_ebus;
ebus->devices = ebus_alloc(sizeof(struct linux_ebus_device));
dev = ebus->devices;
dev->next = NULL;
dev->children = NULL;
dev->bus = ebus;
fill_ebus_device(child, dev);
while ((child = child->sibling) != NULL) {
dev->next = ebus_alloc(sizeof(struct linux_ebus_device));
dev = dev->next;
dev->next = NULL;
dev->children = NULL;
dev->bus = ebus;
fill_ebus_device(child, dev);
}
next_ebus:
printk("\n");
pdev = find_next_ebus(pdev, &is_rio);
if (!pdev)
break;
dp = pci_device_to_OF_node(pdev);
ebus->next = ebus_alloc(sizeof(struct linux_ebus));
ebus = ebus->next;
ebus->next = NULL;
ebus->is_rio = is_rio;
++num_ebus;
}
pci_dev_put(pdev); /* XXX for the case, when ebusnd is 0, is it OK? */
}

4
arch/sparc64/kernel/pci.c
View File

@ -18,11 +18,12 @@
#include <linux/msi.h>
#include <linux/irq.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/irq.h>
#include <asm/ebus.h>
#include <asm/prom.h>
#include <asm/apb.h>
@ -808,7 +809,6 @@ static int __init pcibios_init(void)
pci_scan_each_controller_bus();
ebus_init();
power_init();
return 0;

4
arch/sparc64/kernel/sparc64_ksyms.c
View File

@ -45,9 +45,6 @@
#ifdef CONFIG_SBUS
#include <asm/dma.h>
#endif
#ifdef CONFIG_PCI
#include <asm/ebus.h>
#endif
#include <asm/ns87303.h>
#include <asm/timer.h>
#include <asm/cpudata.h>
@ -165,7 +162,6 @@ EXPORT_SYMBOL(insb);
EXPORT_SYMBOL(insw);
EXPORT_SYMBOL(insl);
#ifdef CONFIG_PCI
EXPORT_SYMBOL(ebus_chain);
EXPORT_SYMBOL(pci_alloc_consistent);
EXPORT_SYMBOL(pci_free_consistent);
EXPORT_SYMBOL(pci_map_single);