diff options
| -rw-r--r-- | arch/sparc/kernel/prom.c | 30 | ||||
| -rw-r--r-- | arch/sparc64/kernel/prom.c | 30 | ||||
| -rw-r--r-- | include/asm-sparc/prom.h | 2 | ||||
| -rw-r--r-- | include/asm-sparc64/prom.h | 2 |
4 files changed, 64 insertions, 0 deletions
diff --git a/arch/sparc/kernel/prom.c b/arch/sparc/kernel/prom.c index 946ce6d15819..4b06dcb00ebd 100644 --- a/arch/sparc/kernel/prom.c +++ b/arch/sparc/kernel/prom.c @@ -190,6 +190,36 @@ int of_getintprop_default(struct device_node *np, const char *name, int def) } EXPORT_SYMBOL(of_getintprop_default); +int of_n_addr_cells(struct device_node *np) +{ + int* ip; + do { + if (np->parent) + np = np->parent; + ip = of_get_property(np, "#address-cells", NULL); + if (ip != NULL) + return *ip; + } while (np->parent); + /* No #address-cells property for the root node, default to 2 */ + return 2; +} +EXPORT_SYMBOL(of_n_addr_cells); + +int of_n_size_cells(struct device_node *np) +{ + int* ip; + do { + if (np->parent) + np = np->parent; + ip = of_get_property(np, "#size-cells", NULL); + if (ip != NULL) + return *ip; + } while (np->parent); + /* No #size-cells property for the root node, default to 1 */ + return 1; +} +EXPORT_SYMBOL(of_n_size_cells); + int of_set_property(struct device_node *dp, const char *name, void *val, int len) { struct property **prevp; diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c index 8e87e7ea0325..6aa856a18157 100644 --- a/arch/sparc64/kernel/prom.c +++ b/arch/sparc64/kernel/prom.c @@ -190,6 +190,36 @@ int of_getintprop_default(struct device_node *np, const char *name, int def) } EXPORT_SYMBOL(of_getintprop_default); +int of_n_addr_cells(struct device_node *np) +{ + int* ip; + do { + if (np->parent) + np = np->parent; + ip = of_get_property(np, "#address-cells", NULL); + if (ip != NULL) + return *ip; + } while (np->parent); + /* No #address-cells property for the root node, default to 2 */ + return 2; +} +EXPORT_SYMBOL(of_n_addr_cells); + +int of_n_size_cells(struct device_node *np) +{ + int* ip; + do { + if (np->parent) + np = np->parent; + ip = of_get_property(np, "#size-cells", NULL); + if (ip != NULL) + return *ip; + } while (np->parent); + /* No #size-cells property for the root node, default to 1 */ + return 1; +} +EXPORT_SYMBOL(of_n_size_cells); + int of_set_property(struct device_node *dp, const char *name, void *val, int len) { struct property **prevp; diff --git a/include/asm-sparc/prom.h b/include/asm-sparc/prom.h index f9cf44c07164..7032d02d3197 100644 --- a/include/asm-sparc/prom.h +++ b/include/asm-sparc/prom.h @@ -101,6 +101,8 @@ extern int of_set_property(struct device_node *node, const char *name, void *val extern int of_getintprop_default(struct device_node *np, const char *name, int def); +extern int of_n_addr_cells(struct device_node *np); +extern int of_n_size_cells(struct device_node *np); extern void prom_build_devicetree(void); diff --git a/include/asm-sparc64/prom.h b/include/asm-sparc64/prom.h index 265614d497c4..4cecfe6d135d 100644 --- a/include/asm-sparc64/prom.h +++ b/include/asm-sparc64/prom.h @@ -101,6 +101,8 @@ extern int of_set_property(struct device_node *node, const char *name, void *val extern int of_getintprop_default(struct device_node *np, const char *name, int def); +extern int of_n_addr_cells(struct device_node *np); +extern int of_n_size_cells(struct device_node *np); extern void prom_build_devicetree(void); |