[SPARC]: Beginnings of generic of_device framework.

The idea is to fully construct the device register and
interrupt values into these of_device objects, and convert
all of SBUS, EBUS, ISA drivers to use this new stuff.

Much ideas and code taken from Ben H.'s powerpc work.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-06-29 14:34:50 -07:00 коммит произвёл David S. Miller
Родитель 3ae9a3489a
Коммит cf44bbc26c
6 изменённых файлов: 936 добавлений и 8 удалений

Просмотреть файл

@ -153,10 +153,424 @@ struct bus_type sbus_bus_type = {
EXPORT_SYMBOL(sbus_bus_type);
#endif
struct bus_type of_bus_type = {
.name = "of",
.match = of_platform_bus_match,
.probe = of_device_probe,
.remove = of_device_remove,
.suspend = of_device_suspend,
.resume = of_device_resume,
};
EXPORT_SYMBOL(of_bus_type);
static inline u64 of_read_addr(u32 *cell, int size)
{
u64 r = 0;
while (size--)
r = (r << 32) | *(cell++);
return r;
}
static void __init get_cells(struct device_node *dp,
int *addrc, int *sizec)
{
if (addrc)
*addrc = of_n_addr_cells(dp);
if (sizec)
*sizec = of_n_size_cells(dp);
}
/* Max address size we deal with */
#define OF_MAX_ADDR_CELLS 4
struct of_bus {
const char *name;
const char *addr_prop_name;
int (*match)(struct device_node *parent);
void (*count_cells)(struct device_node *child,
int *addrc, int *sizec);
u64 (*map)(u32 *addr, u32 *range, int na, int ns, int pna);
int (*translate)(u32 *addr, u64 offset, int na);
unsigned int (*get_flags)(u32 *addr);
};
/*
* Default translator (generic bus)
*/
static void of_bus_default_count_cells(struct device_node *dev,
int *addrc, int *sizec)
{
get_cells(dev, addrc, sizec);
}
static u64 of_bus_default_map(u32 *addr, u32 *range, int na, int ns, int pna)
{
u64 cp, s, da;
cp = of_read_addr(range, na);
s = of_read_addr(range + na + pna, ns);
da = of_read_addr(addr, na);
if (da < cp || da >= (cp + s))
return OF_BAD_ADDR;
return da - cp;
}
static int of_bus_default_translate(u32 *addr, u64 offset, int na)
{
u64 a = of_read_addr(addr, na);
memset(addr, 0, na * 4);
a += offset;
if (na > 1)
addr[na - 2] = a >> 32;
addr[na - 1] = a & 0xffffffffu;
return 0;
}
static unsigned int of_bus_default_get_flags(u32 *addr)
{
return IORESOURCE_MEM;
}
/*
* PCI bus specific translator
*/
static int of_bus_pci_match(struct device_node *np)
{
return !strcmp(np->type, "pci") || !strcmp(np->type, "pciex");
}
static void of_bus_pci_count_cells(struct device_node *np,
int *addrc, int *sizec)
{
if (addrc)
*addrc = 3;
if (sizec)
*sizec = 2;
}
static u64 of_bus_pci_map(u32 *addr, u32 *range, int na, int ns, int pna)
{
u64 cp, s, da;
/* Check address type match */
if ((addr[0] ^ range[0]) & 0x03000000)
return OF_BAD_ADDR;
/* Read address values, skipping high cell */
cp = of_read_addr(range + 1, na - 1);
s = of_read_addr(range + na + pna, ns);
da = of_read_addr(addr + 1, na - 1);
if (da < cp || da >= (cp + s))
return OF_BAD_ADDR;
return da - cp;
}
static int of_bus_pci_translate(u32 *addr, u64 offset, int na)
{
return of_bus_default_translate(addr + 1, offset, na - 1);
}
static unsigned int of_bus_pci_get_flags(u32 *addr)
{
unsigned int flags = 0;
u32 w = addr[0];
switch((w >> 24) & 0x03) {
case 0x01:
flags |= IORESOURCE_IO;
case 0x02: /* 32 bits */
case 0x03: /* 64 bits */
flags |= IORESOURCE_MEM;
}
if (w & 0x40000000)
flags |= IORESOURCE_PREFETCH;
return flags;
}
/*
* SBUS bus specific translator
*/
static int of_bus_sbus_match(struct device_node *np)
{
return !strcmp(np->name, "sbus") ||
!strcmp(np->name, "sbi");
}
static void of_bus_sbus_count_cells(struct device_node *child,
int *addrc, int *sizec)
{
if (addrc)
*addrc = 2;
if (sizec)
*sizec = 1;
}
static u64 of_bus_sbus_map(u32 *addr, u32 *range, int na, int ns, int pna)
{
return of_bus_default_map(addr, range, na, ns, pna);
}
static int of_bus_sbus_translate(u32 *addr, u64 offset, int na)
{
return of_bus_default_translate(addr, offset, na);
}
static unsigned int of_bus_sbus_get_flags(u32 *addr)
{
return IORESOURCE_MEM;
}
/*
* Array of bus specific translators
*/
static struct of_bus of_busses[] = {
/* PCI */
{
.name = "pci",
.addr_prop_name = "assigned-addresses",
.match = of_bus_pci_match,
.count_cells = of_bus_pci_count_cells,
.map = of_bus_pci_map,
.translate = of_bus_pci_translate,
.get_flags = of_bus_pci_get_flags,
},
/* SBUS */
{
.name = "sbus",
.addr_prop_name = "reg",
.match = of_bus_sbus_match,
.count_cells = of_bus_sbus_count_cells,
.map = of_bus_sbus_map,
.translate = of_bus_sbus_translate,
.get_flags = of_bus_sbus_get_flags,
},
/* Default */
{
.name = "default",
.addr_prop_name = "reg",
.match = NULL,
.count_cells = of_bus_default_count_cells,
.map = of_bus_default_map,
.translate = of_bus_default_translate,
.get_flags = of_bus_default_get_flags,
},
};
static struct of_bus *of_match_bus(struct device_node *np)
{
int i;
for (i = 0; i < ARRAY_SIZE(of_busses); i ++)
if (!of_busses[i].match || of_busses[i].match(np))
return &of_busses[i];
BUG();
return NULL;
}
static int __init build_one_resource(struct device_node *parent,
struct of_bus *bus,
struct of_bus *pbus,
u32 *addr,
int na, int ns, int pna)
{
u32 *ranges;
unsigned int rlen;
int rone;
u64 offset = OF_BAD_ADDR;
ranges = of_get_property(parent, "ranges", &rlen);
if (ranges == NULL || rlen == 0) {
offset = of_read_addr(addr, na);
memset(addr, 0, pna * 4);
goto finish;
}
/* Now walk through the ranges */
rlen /= 4;
rone = na + pna + ns;
for (; rlen >= rone; rlen -= rone, ranges += rone) {
offset = bus->map(addr, ranges, na, ns, pna);
if (offset != OF_BAD_ADDR)
break;
}
if (offset == OF_BAD_ADDR)
return 1;
memcpy(addr, ranges + na, 4 * pna);
finish:
/* Translate it into parent bus space */
return pbus->translate(addr, offset, pna);
}
static void __init build_device_resources(struct of_device *op,
struct device *parent)
{
struct of_device *p_op;
struct of_bus *bus;
int na, ns;
int index, num_reg;
void *preg;
if (!parent)
return;
p_op = to_of_device(parent);
bus = of_match_bus(p_op->node);
bus->count_cells(op->node, &na, &ns);
preg = of_get_property(op->node, bus->addr_prop_name, &num_reg);
if (!preg || num_reg == 0)
return;
/* Convert to num-cells. */
num_reg /= 4;
/* Conver to num-entries. */
num_reg /= na + ns;
for (index = 0; index < num_reg; index++) {
struct resource *r = &op->resource[index];
u32 addr[OF_MAX_ADDR_CELLS];
u32 *reg = (preg + (index * ((na + ns) * 4)));
struct device_node *dp = op->node;
struct device_node *pp = p_op->node;
struct of_bus *pbus;
u64 size, result = OF_BAD_ADDR;
unsigned long flags;
int dna, dns;
int pna, pns;
size = of_read_addr(reg + na, ns);
flags = bus->get_flags(reg);
memcpy(addr, reg, na * 4);
/* If the immediate parent has no ranges property to apply,
* just use a 1<->1 mapping.
*/
if (of_find_property(pp, "ranges", NULL) == NULL) {
result = of_read_addr(addr, na);
goto build_res;
}
dna = na;
dns = ns;
while (1) {
dp = pp;
pp = dp->parent;
if (!pp) {
result = of_read_addr(addr, dna);
break;
}
pbus = of_match_bus(pp);
pbus->count_cells(dp, &pna, &pns);
if (build_one_resource(dp, bus, pbus, addr, dna, dns, pna))
break;
dna = pna;
dns = pns;
bus = pbus;
}
build_res:
memset(r, 0, sizeof(*r));
if (result != OF_BAD_ADDR) {
r->start = result;
r->end = result + size - 1;
r->flags = flags;
} else {
r->start = ~0UL;
r->end = ~0UL;
}
r->name = op->node->name;
}
}
static struct of_device * __init scan_one_device(struct device_node *dp,
struct device *parent)
{
struct of_device *op = kzalloc(sizeof(*op), GFP_KERNEL);
unsigned int *irq;
int len;
if (!op)
return NULL;
op->node = dp;
op->clock_freq = of_getintprop_default(dp, "clock-frequency",
(25*1000*1000));
op->portid = of_getintprop_default(dp, "upa-portid", -1);
if (op->portid == -1)
op->portid = of_getintprop_default(dp, "portid", -1);
irq = of_get_property(dp, "interrupts", &len);
if (irq)
op->irq = *irq;
else
op->irq = 0xffffffff;
build_device_resources(op, parent);
op->dev.parent = parent;
op->dev.bus = &of_bus_type;
if (!parent)
strcpy(op->dev.bus_id, "root");
else
strcpy(op->dev.bus_id, dp->path_component_name);
if (of_device_register(op)) {
printk("%s: Could not register of device.\n",
dp->full_name);
kfree(op);
op = NULL;
}
return op;
}
static void __init scan_tree(struct device_node *dp, struct device *parent)
{
while (dp) {
struct of_device *op = scan_one_device(dp, parent);
if (op)
scan_tree(dp->child, &op->dev);
dp = dp->sibling;
}
}
static void __init scan_of_devices(void)
{
struct device_node *root = of_find_node_by_path("/");
struct of_device *parent;
parent = scan_one_device(root, NULL);
if (!parent)
return;
scan_tree(root->child, &parent->dev);
}
static int __init of_bus_driver_init(void)
{
int err = 0;
int err;
err = bus_register(&of_bus_type);
#ifdef CONFIG_PCI
if (!err)
err = bus_register(&ebus_bus_type);
@ -165,7 +579,11 @@ static int __init of_bus_driver_init(void)
if (!err)
err = bus_register(&sbus_bus_type);
#endif
return 0;
if (!err)
scan_of_devices();
return err;
}
postcore_initcall(of_bus_driver_init);

Просмотреть файл

@ -163,10 +163,492 @@ struct bus_type sbus_bus_type = {
EXPORT_SYMBOL(sbus_bus_type);
#endif
struct bus_type of_bus_type = {
.name = "of",
.match = of_platform_bus_match,
.probe = of_device_probe,
.remove = of_device_remove,
.suspend = of_device_suspend,
.resume = of_device_resume,
};
EXPORT_SYMBOL(of_bus_type);
static inline u64 of_read_addr(u32 *cell, int size)
{
u64 r = 0;
while (size--)
r = (r << 32) | *(cell++);
return r;
}
static void __init get_cells(struct device_node *dp,
int *addrc, int *sizec)
{
if (addrc)
*addrc = of_n_addr_cells(dp);
if (sizec)
*sizec = of_n_size_cells(dp);
}
/* Max address size we deal with */
#define OF_MAX_ADDR_CELLS 4
struct of_bus {
const char *name;
const char *addr_prop_name;
int (*match)(struct device_node *parent);
void (*count_cells)(struct device_node *child,
int *addrc, int *sizec);
u64 (*map)(u32 *addr, u32 *range, int na, int ns, int pna);
int (*translate)(u32 *addr, u64 offset, int na);
unsigned int (*get_flags)(u32 *addr);
};
/*
* Default translator (generic bus)
*/
static void of_bus_default_count_cells(struct device_node *dev,
int *addrc, int *sizec)
{
get_cells(dev, addrc, sizec);
}
static u64 of_bus_default_map(u32 *addr, u32 *range, int na, int ns, int pna)
{
u64 cp, s, da;
cp = of_read_addr(range, na);
s = of_read_addr(range + na + pna, ns);
da = of_read_addr(addr, na);
if (da < cp || da >= (cp + s))
return OF_BAD_ADDR;
return da - cp;
}
static int of_bus_default_translate(u32 *addr, u64 offset, int na)
{
u64 a = of_read_addr(addr, na);
memset(addr, 0, na * 4);
a += offset;
if (na > 1)
addr[na - 2] = a >> 32;
addr[na - 1] = a & 0xffffffffu;
return 0;
}
static unsigned int of_bus_default_get_flags(u32 *addr)
{
return IORESOURCE_MEM;
}
/*
* PCI bus specific translator
*/
static int of_bus_pci_match(struct device_node *np)
{
return !strcmp(np->type, "pci") || !strcmp(np->type, "pciex");
}
static void of_bus_pci_count_cells(struct device_node *np,
int *addrc, int *sizec)
{
if (addrc)
*addrc = 3;
if (sizec)
*sizec = 2;
}
static u64 of_bus_pci_map(u32 *addr, u32 *range, int na, int ns, int pna)
{
u64 cp, s, da;
/* Check address type match */
if ((addr[0] ^ range[0]) & 0x03000000)
return OF_BAD_ADDR;
/* Read address values, skipping high cell */
cp = of_read_addr(range + 1, na - 1);
s = of_read_addr(range + na + pna, ns);
da = of_read_addr(addr + 1, na - 1);
if (da < cp || da >= (cp + s))
return OF_BAD_ADDR;
return da - cp;
}
static int of_bus_pci_translate(u32 *addr, u64 offset, int na)
{
return of_bus_default_translate(addr + 1, offset, na - 1);
}
static unsigned int of_bus_pci_get_flags(u32 *addr)
{
unsigned int flags = 0;
u32 w = addr[0];
switch((w >> 24) & 0x03) {
case 0x01:
flags |= IORESOURCE_IO;
case 0x02: /* 32 bits */
case 0x03: /* 64 bits */
flags |= IORESOURCE_MEM;
}
if (w & 0x40000000)
flags |= IORESOURCE_PREFETCH;
return flags;
}
/*
* ISA bus specific translator
*/
static int of_bus_isa_match(struct device_node *np)
{
return !strcmp(np->name, "isa");
}
static void of_bus_isa_count_cells(struct device_node *child,
int *addrc, int *sizec)
{
if (addrc)
*addrc = 2;
if (sizec)
*sizec = 1;
}
static u64 of_bus_isa_map(u32 *addr, u32 *range, int na, int ns, int pna)
{
u64 cp, s, da;
/* Check address type match */
if ((addr[0] ^ range[0]) & 0x00000001)
return OF_BAD_ADDR;
/* Read address values, skipping high cell */
cp = of_read_addr(range + 1, na - 1);
s = of_read_addr(range + na + pna, ns);
da = of_read_addr(addr + 1, na - 1);
if (da < cp || da >= (cp + s))
return OF_BAD_ADDR;
return da - cp;
}
static int of_bus_isa_translate(u32 *addr, u64 offset, int na)
{
return of_bus_default_translate(addr + 1, offset, na - 1);
}
static unsigned int of_bus_isa_get_flags(u32 *addr)
{
unsigned int flags = 0;
u32 w = addr[0];
if (w & 1)
flags |= IORESOURCE_IO;
else
flags |= IORESOURCE_MEM;
return flags;
}
/*
* SBUS bus specific translator
*/
static int of_bus_sbus_match(struct device_node *np)
{
return !strcmp(np->name, "sbus") ||
!strcmp(np->name, "sbi");
}
static void of_bus_sbus_count_cells(struct device_node *child,
int *addrc, int *sizec)
{
if (addrc)
*addrc = 2;
if (sizec)
*sizec = 1;
}
static u64 of_bus_sbus_map(u32 *addr, u32 *range, int na, int ns, int pna)
{
return of_bus_default_map(addr, range, na, ns, pna);
}
static int of_bus_sbus_translate(u32 *addr, u64 offset, int na)
{
return of_bus_default_translate(addr, offset, na);
}
static unsigned int of_bus_sbus_get_flags(u32 *addr)
{
return IORESOURCE_MEM;
}
/*
* Array of bus specific translators
*/
static struct of_bus of_busses[] = {
/* PCI */
{
.name = "pci",
.addr_prop_name = "assigned-addresses",
.match = of_bus_pci_match,
.count_cells = of_bus_pci_count_cells,
.map = of_bus_pci_map,
.translate = of_bus_pci_translate,
.get_flags = of_bus_pci_get_flags,
},
/* ISA */
{
.name = "isa",
.addr_prop_name = "reg",
.match = of_bus_isa_match,
.count_cells = of_bus_isa_count_cells,
.map = of_bus_isa_map,
.translate = of_bus_isa_translate,
.get_flags = of_bus_isa_get_flags,
},
/* SBUS */
{
.name = "sbus",
.addr_prop_name = "reg",
.match = of_bus_sbus_match,
.count_cells = of_bus_sbus_count_cells,
.map = of_bus_sbus_map,
.translate = of_bus_sbus_translate,
.get_flags = of_bus_sbus_get_flags,
},
/* Default */
{
.name = "default",
.addr_prop_name = "reg",
.match = NULL,
.count_cells = of_bus_default_count_cells,
.map = of_bus_default_map,
.translate = of_bus_default_translate,
.get_flags = of_bus_default_get_flags,
},
};
static struct of_bus *of_match_bus(struct device_node *np)
{
int i;
for (i = 0; i < ARRAY_SIZE(of_busses); i ++)
if (!of_busses[i].match || of_busses[i].match(np))
return &of_busses[i];
BUG();
return NULL;
}
static int __init build_one_resource(struct device_node *parent,
struct of_bus *bus,
struct of_bus *pbus,
u32 *addr,
int na, int ns, int pna)
{
u32 *ranges;
unsigned int rlen;
int rone;
u64 offset = OF_BAD_ADDR;
ranges = of_get_property(parent, "ranges", &rlen);
if (ranges == NULL || rlen == 0) {
offset = of_read_addr(addr, na);
memset(addr, 0, pna * 4);
goto finish;
}
/* Now walk through the ranges */
rlen /= 4;
rone = na + pna + ns;
for (; rlen >= rone; rlen -= rone, ranges += rone) {
offset = bus->map(addr, ranges, na, ns, pna);
if (offset != OF_BAD_ADDR)
break;
}
if (offset == OF_BAD_ADDR)
return 1;
memcpy(addr, ranges + na, 4 * pna);
finish:
/* Translate it into parent bus space */
return pbus->translate(addr, offset, pna);
}
static void __init build_device_resources(struct of_device *op,
struct device *parent)
{
struct of_device *p_op;
struct of_bus *bus;
int na, ns;
int index, num_reg;
void *preg;
if (!parent)
return;
p_op = to_of_device(parent);
bus = of_match_bus(p_op->node);
bus->count_cells(op->node, &na, &ns);
preg = of_get_property(op->node, bus->addr_prop_name, &num_reg);
if (!preg || num_reg == 0)
return;
/* Convert to num-cells. */
num_reg /= 4;
/* Conver to num-entries. */
num_reg /= na + ns;
for (index = 0; index < num_reg; index++) {
struct resource *r = &op->resource[index];
u32 addr[OF_MAX_ADDR_CELLS];
u32 *reg = (preg + (index * ((na + ns) * 4)));
struct device_node *dp = op->node;
struct device_node *pp = p_op->node;
struct of_bus *pbus;
u64 size, result = OF_BAD_ADDR;
unsigned long flags;
int dna, dns;
int pna, pns;
size = of_read_addr(reg + na, ns);
flags = bus->get_flags(reg);
memcpy(addr, reg, na * 4);
/* If the immediate parent has no ranges property to apply,
* just use a 1<->1 mapping. Unless it is the 'dma' child
* of an isa bus, which must be passed up towards the root.
*
* Also, don't try to translate PMU bus device registers.
*/
if ((of_find_property(pp, "ranges", NULL) == NULL &&
strcmp(pp->name, "dma") != 0) ||
!strcmp(pp->name, "pmu")) {
result = of_read_addr(addr, na);
goto build_res;
}
dna = na;
dns = ns;
while (1) {
dp = pp;
pp = dp->parent;
if (!pp) {
result = of_read_addr(addr, dna);
break;
}
pbus = of_match_bus(pp);
pbus->count_cells(dp, &pna, &pns);
if (build_one_resource(dp, bus, pbus, addr, dna, dns, pna))
break;
dna = pna;
dns = pns;
bus = pbus;
}
build_res:
memset(r, 0, sizeof(*r));
if (result != OF_BAD_ADDR) {
r->start = result;
r->end = result + size - 1;
r->flags = flags;
} else {
r->start = ~0UL;
r->end = ~0UL;
}
r->name = op->node->name;
}
}
static struct of_device * __init scan_one_device(struct device_node *dp,
struct device *parent)
{
struct of_device *op = kzalloc(sizeof(*op), GFP_KERNEL);
unsigned int *irq;
int len;
if (!op)
return NULL;
op->node = dp;
op->clock_freq = of_getintprop_default(dp, "clock-frequency",
(25*1000*1000));
op->portid = of_getintprop_default(dp, "upa-portid", -1);
if (op->portid == -1)
op->portid = of_getintprop_default(dp, "portid", -1);
irq = of_get_property(dp, "interrupts", &len);
if (irq)
op->irq = *irq;
else
op->irq = 0xffffffff;
build_device_resources(op, parent);
op->dev.parent = parent;
op->dev.bus = &of_bus_type;
if (!parent)
strcpy(op->dev.bus_id, "root");
else
strcpy(op->dev.bus_id, dp->path_component_name);
if (of_device_register(op)) {
printk("%s: Could not register of device.\n",
dp->full_name);
kfree(op);
op = NULL;
}
return op;
}
static void __init scan_tree(struct device_node *dp, struct device *parent)
{
while (dp) {
struct of_device *op = scan_one_device(dp, parent);
if (op)
scan_tree(dp->child, &op->dev);
dp = dp->sibling;
}
}
static void __init scan_of_devices(void)
{
struct device_node *root = of_find_node_by_path("/");
struct of_device *parent;
parent = scan_one_device(root, NULL);
if (!parent)
return;
scan_tree(root->child, &parent->dev);
}
static int __init of_bus_driver_init(void)
{
int err = 0;
int err;
err = bus_register(&of_bus_type);
#ifdef CONFIG_PCI
if (!err)
err = bus_register(&isa_bus_type);
@ -177,7 +659,11 @@ static int __init of_bus_driver_init(void)
if (!err)
err = bus_register(&sbus_bus_type);
#endif
return 0;
if (!err)
scan_of_devices();
return err;
}
postcore_initcall(of_bus_driver_init);

Просмотреть файл

@ -4,10 +4,12 @@
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <asm/openprom.h>
#include <asm/prom.h>
extern struct bus_type ebus_bus_type;
extern struct bus_type sbus_bus_type;
extern struct bus_type of_bus_type;
/*
* The of_device is a kind of "base class" that is a superset of
@ -16,8 +18,16 @@ extern struct bus_type sbus_bus_type;
*/
struct of_device
{
struct device_node *node; /* OF device node */
struct device dev; /* Generic device interface */
struct device_node *node;
struct device dev;
struct resource resource[PROMREG_MAX];
unsigned int irq;
void *sysdata;
int slot;
int portid;
int clock_freq;
};
#define to_of_device(d) container_of(d, struct of_device, dev)

Просмотреть файл

@ -69,6 +69,8 @@ struct device_node {
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
#define OF_BAD_ADDR ((u64)-1)
static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
{
dn->pde = de;

Просмотреть файл

@ -4,11 +4,13 @@
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <asm/openprom.h>
#include <asm/prom.h>
extern struct bus_type isa_bus_type;
extern struct bus_type ebus_bus_type;
extern struct bus_type sbus_bus_type;
extern struct bus_type of_bus_type;
/*
* The of_device is a kind of "base class" that is a superset of
@ -17,8 +19,16 @@ extern struct bus_type sbus_bus_type;
*/
struct of_device
{
struct device_node *node; /* OF device node */
struct device dev; /* Generic device interface */
struct device_node *node;
struct device dev;
struct resource resource[PROMREG_MAX];
unsigned int irq;
void *sysdata;
int slot;
int portid;
int clock_freq;
};
#define to_of_device(d) container_of(d, struct of_device, dev)

Просмотреть файл

@ -69,6 +69,8 @@ struct device_node {
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
#define OF_BAD_ADDR ((u64)-1)
static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
{
dn->pde = de;