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[SPARC]: Port sparc64 in-kernel device tree code to sparc32.
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Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller committed Jun 24, 2006
1 parent a2bd4fd commit 942a6bd
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Showing 9 changed files with 668 additions and 91 deletions.
2 changes: 1 addition & 1 deletion arch/sparc/kernel/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ obj-y := entry.o wof.o wuf.o etrap.o rtrap.o traps.o $(IRQ_OBJS) \
sys_sparc.o sunos_asm.o systbls.o \
time.o windows.o cpu.o devices.o sclow.o \
tadpole.o tick14.o ptrace.o sys_solaris.o \
unaligned.o muldiv.o semaphore.o
unaligned.o muldiv.o semaphore.o prom.o

obj-$(CONFIG_PCI) += pcic.o
obj-$(CONFIG_SUN4) += sun4setup.o
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164 changes: 84 additions & 80 deletions arch/sparc/kernel/ebus.c
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
#include <asm/ebus.h>
#include <asm/io.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/bpp.h>

struct linux_ebus *ebus_chain = NULL;
Expand Down Expand Up @@ -83,79 +84,81 @@ int __init ebus_blacklist_irq(char *name)
return 0;
}

void __init fill_ebus_child(int node, struct linux_prom_registers *preg,
struct linux_ebus_child *dev)
void __init fill_ebus_child(struct device_node *dp,
struct linux_ebus_child *dev)
{
int regs[PROMREG_MAX];
int irqs[PROMREG_MAX];
char lbuf[128];
int *regs;
int *irqs;
int i, len;

dev->prom_node = node;
prom_getstring(node, "name", lbuf, sizeof(lbuf));
strcpy(dev->prom_name, lbuf);

len = prom_getproperty(node, "reg", (void *)regs, sizeof(regs));
if (len == -1) len = 0;
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_name, len, dev->parent->num_addrs);
dev->prom_node->name, len,
dev->parent->num_addrs);
panic(__FUNCTION__);
}
dev->resource[i].start = dev->parent->resource[regs[i]].start; /* XXX resource */

/* 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_name)) != 0) {
if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
dev->num_irqs = 1;
} else if ((len = prom_getproperty(node, "interrupts",
(char *)&irqs, sizeof(irqs))) == -1 || len == 0) {
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];
/* P3 */ /* printk("EBUS: dev %s irq %d from parent\n", dev->prom_name, dev->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_name, irqs[0]);
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->irqs[0] = pcic_pin_to_irq(irqs[0], dev->prom_name);
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);
}
}
}
}

void __init fill_ebus_device(int node, struct linux_ebus_device *dev)
void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *dev)
{
struct linux_prom_registers regs[PROMREG_MAX];
struct linux_prom_registers *regs;
struct linux_ebus_child *child;
int irqs[PROMINTR_MAX];
char lbuf[128];
int *irqs;
int i, n, len;
unsigned long baseaddr;

dev->prom_node = node;
prom_getstring(node, "name", lbuf, sizeof(lbuf));
strcpy(dev->prom_name, lbuf);
dev->prom_node = dp;

len = prom_getproperty(node, "reg", (void *)regs, sizeof(regs));
regs = of_get_property(dp, "reg", &len);
if (len % sizeof(struct linux_prom_registers)) {
prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
dev->prom_name, len,
dev->prom_node->name, len,
(int)sizeof(struct linux_prom_registers));
panic(__FUNCTION__);
}
Expand Down Expand Up @@ -197,7 +200,7 @@ void __init fill_ebus_device(int node, struct linux_ebus_device *dev)
if ((baseaddr = (unsigned long) ioremap(baseaddr,
regs[i].reg_size)) == 0) {
panic("ebus: unable to remap dev %s",
dev->prom_name);
dev->prom_node->name);
}
}
dev->resource[i].start = baseaddr; /* XXX Unaligned */
Expand All @@ -206,91 +209,93 @@ void __init fill_ebus_device(int node, struct linux_ebus_device *dev)
for (i = 0; i < PROMINTR_MAX; i++)
dev->irqs[i] = PCI_IRQ_NONE;

if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_name)) != 0) {
if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
dev->num_irqs = 1;
} else if ((len = prom_getproperty(node, "interrupts",
(char *)&irqs, sizeof(irqs))) == -1 || len == 0) {
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_name, irqs[0]);
irqs = of_get_property(dp, "interrupts", &len);
if (!irqs) {
dev->num_irqs = 0;
dev->irqs[0] = 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->irqs[0] = pcic_pin_to_irq(irqs[0], dev->prom_name);
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);
}
}
}

if ((node = prom_getchild(node))) {
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(node, &regs[0], child);
fill_ebus_child(dp, child);

while ((node = prom_getsibling(node)) != 0) {
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(node, &regs[0], child);
fill_ebus_child(dp, child);
}
}
}

void __init ebus_init(void)
{
struct linux_prom_pci_registers regs[PROMREG_MAX];
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;
char lbuf[128];
struct device_node *dp;
unsigned long addr, *base;
unsigned short pci_command;
int nd, len, ebusnd;
int reg, nreg;
int len, reg, nreg;
int num_ebus = 0;

prom_getstring(prom_root_node, "name", lbuf, sizeof(lbuf));
dp = of_find_node_by_path("/");
for (sp = ebus_blacklist; sp->esname != NULL; sp++) {
if (strcmp(lbuf, sp->esname) == 0) {
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) {
if (!pdev)
return;
}

cookie = pdev->sysdata;
ebusnd = cookie->prom_node;
dp = cookie->prom_node;

ebus_chain = ebus = (struct linux_ebus *)
ebus_alloc(sizeof(struct linux_ebus));
ebus->next = NULL;

while (ebusnd) {
while (dp) {
struct device_node *nd;

prom_getstring(ebusnd, "name", lbuf, sizeof(lbuf));
ebus->prom_node = ebusnd;
strcpy(ebus->prom_name, lbuf);
ebus->prom_node = dp;
ebus->self = pdev;
ebus->parent = pbm = cookie->pbm;

Expand All @@ -299,9 +304,8 @@ void __init ebus_init(void)
pci_command |= PCI_COMMAND_MASTER;
pci_write_config_word(pdev, PCI_COMMAND, pci_command);

len = prom_getproperty(ebusnd, "reg", (void *)regs,
sizeof(regs));
if (len == 0 || len == -1) {
regs = of_get_property(dp, "reg", &len);
if (!regs) {
prom_printf("%s: can't find reg property\n",
__FUNCTION__);
prom_halt();
Expand All @@ -317,7 +321,7 @@ void __init ebus_init(void)
*base++ = addr;
}

nd = prom_getchild(ebusnd);
nd = dp->child;
if (!nd)
goto next_ebus;

Expand All @@ -330,7 +334,7 @@ void __init ebus_init(void)
dev->bus = ebus;
fill_ebus_device(nd, dev);

while ((nd = prom_getsibling(nd)) != 0) {
while ((nd = nd->sibling) != NULL) {
dev->next = (struct linux_ebus_device *)
ebus_alloc(sizeof(struct linux_ebus_device));

Expand All @@ -348,7 +352,7 @@ void __init ebus_init(void)
break;

cookie = pdev->sysdata;
ebusnd = cookie->prom_node;
dp = cookie->prom_node;

ebus->next = (struct linux_ebus *)
ebus_alloc(sizeof(struct linux_ebus));
Expand Down
3 changes: 2 additions & 1 deletion arch/sparc/kernel/pcic.c
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@

#include <asm/irq.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/pcic.h>
#include <asm/timer.h>
#include <asm/uaccess.h>
Expand Down Expand Up @@ -665,7 +666,7 @@ void __init pcibios_fixup_bus(struct pci_bus *bus)
/* cookies */
pcp = pci_devcookie_alloc();
pcp->pbm = &pcic->pbm;
pcp->prom_node = node;
pcp->prom_node = of_find_node_by_phandle(node);
dev->sysdata = pcp;

/* fixing I/O to look like memory */
Expand Down
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