[SPARC64]: Use in-kernel OBP device tree for PCI controller probing.
It can be pushed even further down, but this is a first step.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index cc662e9..d268200 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -16,6 +16,7 @@
#include <asm/irq.h>
#include <asm/upa.h>
#include <asm/pstate.h>
+#include <asm/prom.h>
#include "pci_impl.h"
#include "iommu_common.h"
@@ -1437,7 +1438,7 @@
pci_fixup_host_bridge_self(pbm->pci_bus);
pbm->pci_bus->self->sysdata = cookie;
- pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);
+ pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node->node);
pci_record_assignments(pbm, pbm->pci_bus);
pci_assign_unassigned(pbm, pbm->pci_bus);
pci_fixup_irq(pbm, pbm->pci_bus);
@@ -1456,10 +1457,12 @@
pbm_config_busmastering(&p->pbm_B);
p->pbm_B.is_66mhz_capable =
- prom_getbool(p->pbm_B.prom_node, "66mhz-capable");
+ (of_find_property(p->pbm_B.prom_node, "66mhz-capable", NULL)
+ != NULL);
pbm_config_busmastering(&p->pbm_A);
p->pbm_A.is_66mhz_capable =
- prom_getbool(p->pbm_A.prom_node, "66mhz-capable");
+ (of_find_property(p->pbm_A.prom_node, "66mhz-capable", NULL)
+ != NULL);
pbm_scan_bus(p, &p->pbm_B);
pbm_scan_bus(p, &p->pbm_A);
@@ -1661,13 +1664,18 @@
{
struct pci_iommu *iommu = pbm->iommu;
unsigned long i, tagbase, database;
+ struct property *prop;
u32 vdma[2], dma_mask;
u64 control;
- int err, tsbsize;
+ int tsbsize;
- err = prom_getproperty(pbm->prom_node, "virtual-dma",
- (char *)&vdma[0], sizeof(vdma));
- if (err == 0 || err == -1) {
+ prop = of_find_property(pbm->prom_node, "virtual-dma", NULL);
+ if (prop) {
+ u32 *val = prop->value;
+
+ vdma[0] = val[0];
+ vdma[1] = val[1];
+ } else {
/* No property, use default values. */
vdma[0] = 0xc0000000;
vdma[1] = 0x40000000;
@@ -1778,6 +1786,7 @@
static void schizo_pbm_hw_init(struct pci_pbm_info *pbm)
{
+ struct property *prop;
u64 tmp;
schizo_write(pbm->pbm_regs + SCHIZO_PCI_IRQ_RETRY, 5);
@@ -1791,7 +1800,8 @@
pbm->chip_version >= 0x2)
tmp |= 0x3UL << SCHIZO_PCICTRL_PTO_SHIFT;
- if (!prom_getbool(pbm->prom_node, "no-bus-parking"))
+ prop = of_find_property(pbm->prom_node, "no-bus-parking", NULL);
+ if (!prop)
tmp |= SCHIZO_PCICTRL_PARK;
else
tmp &= ~SCHIZO_PCICTRL_PARK;
@@ -1831,16 +1841,17 @@
}
static void schizo_pbm_init(struct pci_controller_info *p,
- int prom_node, u32 portid,
+ struct device_node *dp, u32 portid,
int chip_type)
{
- struct linux_prom64_registers pr_regs[4];
- unsigned int busrange[2];
+ struct linux_prom64_registers *regs;
+ struct property *prop;
+ unsigned int *busrange;
struct pci_pbm_info *pbm;
const char *chipset_name;
- u32 ino_bitmap[2];
+ u32 *ino_bitmap;
int is_pbm_a;
- int err;
+ int len;
switch (chip_type) {
case PBM_CHIP_TYPE_TOMATILLO:
@@ -1868,16 +1879,10 @@
* 3) PBM PCI config space
* 4) Ichip regs
*/
- err = prom_getproperty(prom_node, "reg",
- (char *)&pr_regs[0],
- sizeof(pr_regs));
- if (err == 0 || err == -1) {
- prom_printf("%s: Fatal error, no reg property.\n",
- chipset_name);
- prom_halt();
- }
+ prop = of_find_property(dp, "reg", NULL);
+ regs = prop->value;
- is_pbm_a = ((pr_regs[0].phys_addr & 0x00700000) == 0x00600000);
+ is_pbm_a = ((regs[0].phys_addr & 0x00700000) == 0x00600000);
if (is_pbm_a)
pbm = &p->pbm_A;
@@ -1886,92 +1891,62 @@
pbm->portid = portid;
pbm->parent = p;
- pbm->prom_node = prom_node;
+ pbm->prom_node = dp;
pbm->pci_first_slot = 1;
pbm->chip_type = chip_type;
- pbm->chip_version =
- prom_getintdefault(prom_node, "version#", 0);
- pbm->chip_revision =
- prom_getintdefault(prom_node, "module-revision#", 0);
+ pbm->chip_version = 0;
+ prop = of_find_property(dp, "version#", NULL);
+ if (prop)
+ pbm->chip_version = *(int *) prop->value;
+ pbm->chip_revision = 0;
+ prop = of_find_property(dp, "module-revision#", NULL);
+ if (prop)
+ pbm->chip_revision = *(int *) prop->value;
- pbm->pbm_regs = pr_regs[0].phys_addr;
- pbm->controller_regs = pr_regs[1].phys_addr - 0x10000UL;
+ pbm->pbm_regs = regs[0].phys_addr;
+ pbm->controller_regs = regs[1].phys_addr - 0x10000UL;
if (chip_type == PBM_CHIP_TYPE_TOMATILLO)
- pbm->sync_reg = pr_regs[3].phys_addr + 0x1a18UL;
+ pbm->sync_reg = regs[3].phys_addr + 0x1a18UL;
- sprintf(pbm->name,
- (chip_type == PBM_CHIP_TYPE_TOMATILLO ?
- "TOMATILLO%d PBM%c" :
- "SCHIZO%d PBM%c"),
- p->index,
- (pbm == &p->pbm_A ? 'A' : 'B'));
+ pbm->name = dp->full_name;
- printk("%s: ver[%x:%x], portid %x, "
- "cregs[%lx] pregs[%lx]\n",
+ printk("%s: %s PCI Bus Module ver[%x:%x]\n",
pbm->name,
- pbm->chip_version, pbm->chip_revision,
- pbm->portid,
- pbm->controller_regs,
- pbm->pbm_regs);
+ (chip_type == PBM_CHIP_TYPE_TOMATILLO ?
+ "TOMATILLO" : "SCHIZO"),
+ pbm->chip_version, pbm->chip_revision);
schizo_pbm_hw_init(pbm);
- prom_getstring(prom_node, "name",
- pbm->prom_name,
- sizeof(pbm->prom_name));
-
- err = prom_getproperty(prom_node, "ranges",
- (char *) pbm->pbm_ranges,
- sizeof(pbm->pbm_ranges));
- if (err == 0 || err == -1) {
- prom_printf("%s: Fatal error, no ranges property.\n",
- pbm->name);
- prom_halt();
- }
-
+ prop = of_find_property(dp, "ranges", &len);
+ pbm->pbm_ranges = prop->value;
pbm->num_pbm_ranges =
- (err / sizeof(struct linux_prom_pci_ranges));
+ (len / sizeof(struct linux_prom_pci_ranges));
schizo_determine_mem_io_space(pbm);
pbm_register_toplevel_resources(p, pbm);
- err = prom_getproperty(prom_node, "interrupt-map",
- (char *)pbm->pbm_intmap,
- sizeof(pbm->pbm_intmap));
- if (err != -1) {
- pbm->num_pbm_intmap = (err / sizeof(struct linux_prom_pci_intmap));
- err = prom_getproperty(prom_node, "interrupt-map-mask",
- (char *)&pbm->pbm_intmask,
- sizeof(pbm->pbm_intmask));
- if (err == -1) {
- prom_printf("%s: Fatal error, no "
- "interrupt-map-mask.\n", pbm->name);
- prom_halt();
- }
+ prop = of_find_property(dp, "interrupt-map", &len);
+ if (prop) {
+ pbm->pbm_intmap = prop->value;
+ pbm->num_pbm_intmap =
+ (len / sizeof(struct linux_prom_pci_intmap));
+
+ prop = of_find_property(dp, "interrupt-map-mask", NULL);
+ pbm->pbm_intmask = prop->value;
} else {
pbm->num_pbm_intmap = 0;
- memset(&pbm->pbm_intmask, 0, sizeof(pbm->pbm_intmask));
}
- err = prom_getproperty(prom_node, "ino-bitmap",
- (char *) &ino_bitmap[0],
- sizeof(ino_bitmap));
- if (err == 0 || err == -1) {
- prom_printf("%s: Fatal error, no ino-bitmap.\n", pbm->name);
- prom_halt();
- }
+ prop = of_find_property(dp, "ino-bitmap", NULL);
+ ino_bitmap = prop->value;
pbm->ino_bitmap = (((u64)ino_bitmap[1] << 32UL) |
((u64)ino_bitmap[0] << 0UL));
- err = prom_getproperty(prom_node, "bus-range",
- (char *)&busrange[0],
- sizeof(busrange));
- if (err == 0 || err == -1) {
- prom_printf("%s: Fatal error, no bus-range.\n", pbm->name);
- prom_halt();
- }
+ prop = of_find_property(dp, "bus-range", NULL);
+ busrange = prop->value;
pbm->pci_first_busno = busrange[0];
pbm->pci_last_busno = busrange[1];
@@ -1989,16 +1964,20 @@
return (x == y);
}
-static void __schizo_init(int node, char *model_name, int chip_type)
+static void __schizo_init(struct device_node *dp, char *model_name, int chip_type)
{
struct pci_controller_info *p;
struct pci_iommu *iommu;
+ struct property *prop;
int is_pbm_a;
u32 portid;
- portid = prom_getintdefault(node, "portid", 0xff);
+ portid = 0xff;
+ prop = of_find_property(dp, "portid", NULL);
+ if (prop)
+ portid = *(u32 *) prop->value;
- for(p = pci_controller_root; p; p = p->next) {
+ for (p = pci_controller_root; p; p = p->next) {
struct pci_pbm_info *pbm;
if (p->pbm_A.prom_node && p->pbm_B.prom_node)
@@ -2009,8 +1988,8 @@
&p->pbm_B);
if (portid_compare(pbm->portid, portid, chip_type)) {
- is_pbm_a = (p->pbm_A.prom_node == 0);
- schizo_pbm_init(p, node, portid, chip_type);
+ is_pbm_a = (p->pbm_A.prom_node == NULL);
+ schizo_pbm_init(p, dp, portid, chip_type);
return;
}
}
@@ -2051,20 +2030,20 @@
/* Like PSYCHO we have a 2GB aligned area for memory space. */
pci_memspace_mask = 0x7fffffffUL;
- schizo_pbm_init(p, node, portid, chip_type);
+ schizo_pbm_init(p, dp, portid, chip_type);
}
-void schizo_init(int node, char *model_name)
+void schizo_init(struct device_node *dp, char *model_name)
{
- __schizo_init(node, model_name, PBM_CHIP_TYPE_SCHIZO);
+ __schizo_init(dp, model_name, PBM_CHIP_TYPE_SCHIZO);
}
-void schizo_plus_init(int node, char *model_name)
+void schizo_plus_init(struct device_node *dp, char *model_name)
{
- __schizo_init(node, model_name, PBM_CHIP_TYPE_SCHIZO_PLUS);
+ __schizo_init(dp, model_name, PBM_CHIP_TYPE_SCHIZO_PLUS);
}
-void tomatillo_init(int node, char *model_name)
+void tomatillo_init(struct device_node *dp, char *model_name)
{
- __schizo_init(node, model_name, PBM_CHIP_TYPE_TOMATILLO);
+ __schizo_init(dp, model_name, PBM_CHIP_TYPE_TOMATILLO);
}