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OpenCloudOS-Kernel
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sparc: Move core of OF device tree building code into prom_common.c 

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-12-05 01:21:41 -08:00
parent 4aef8c53fe
commit 6524036a1e
4 changed files with 80 additions and 132 deletions
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17
arch/sparc/kernel/prom.h
View File

@ -15,7 +15,20 @@ extern void irq_trans_init(struct device_node *dp);
extern unsigned int prom_unique_id;
extern struct device_node * __init create_node(phandle node,
struct device_node *parent);
static inline int is_root_node(const struct device_node *dp)
{
if (!dp)
return 0;
return (dp->parent == NULL);
}
extern char *build_path_component(struct device_node *dp);
extern struct device_node * __init prom_create_node(phandle node,
struct device_node *parent);
extern struct device_node * __init prom_build_tree(struct device_node *parent,
phandle node,
struct device_node ***nextp);
#endif /* __PROM_H */

69
arch/sparc/kernel/prom_32.c
View File

@ -42,14 +42,6 @@ void * __init prom_early_alloc(unsigned long size)
return ret;
}
static int is_root_node(const struct device_node *dp)
{
if (!dp)
return 0;
return (dp->parent == NULL);
}
/* The following routines deal with the black magic of fully naming a
* node.
*
@ -161,7 +153,7 @@ static void __init __build_path_component(struct device_node *dp, char *tmp_buf)
return sparc32_path_component(dp, tmp_buf);
}
static char * __init build_path_component(struct device_node *dp)
char * __init build_path_component(struct device_node *dp)
{
char tmp_buf[64], *n;
@ -176,57 +168,6 @@ static char * __init build_path_component(struct device_node *dp)
return n;
}
static char * __init build_full_name(struct device_node *dp)
{
int len, ourlen, plen;
char *n;
plen = strlen(dp->parent->full_name);
ourlen = strlen(dp->path_component_name);
len = ourlen + plen + 2;
n = prom_early_alloc(len);
strcpy(n, dp->parent->full_name);
if (!is_root_node(dp->parent)) {
strcpy(n + plen, "/");
plen++;
}
strcpy(n + plen, dp->path_component_name);
return n;
}
static struct device_node * __init build_tree(struct device_node *parent, phandle node, struct device_node ***nextp)
{
struct device_node *ret = NULL, *prev_sibling = NULL;
struct device_node *dp;
while (1) {
dp = create_node(node, parent);
if (!dp)
break;
if (prev_sibling)
prev_sibling->sibling = dp;
if (!ret)
ret = dp;
prev_sibling = dp;
*(*nextp) = dp;
*nextp = &dp->allnext;
dp->path_component_name = build_path_component(dp);
dp->full_name = build_full_name(dp);
dp->child = build_tree(dp, prom_getchild(node), nextp);
node = prom_getsibling(node);
}
return ret;
}
struct device_node *of_console_device;
EXPORT_SYMBOL(of_console_device);
@ -360,14 +301,14 @@ void __init prom_build_devicetree(void)
{
struct device_node **nextp;
allnodes = create_node(prom_root_node, NULL);
allnodes = prom_create_node(prom_root_node, NULL);
allnodes->path_component_name = "";
allnodes->full_name = "/";
nextp = &allnodes->allnext;
allnodes->child = build_tree(allnodes,
prom_getchild(allnodes->node),
&nextp);
allnodes->child = prom_build_tree(allnodes,
prom_getchild(allnodes->node),
&nextp);
of_console_init();
printk("PROM: Built device tree with %u bytes of memory.\n",

69
arch/sparc/kernel/prom_64.c
View File

@ -51,14 +51,6 @@ void * __init prom_early_alloc(unsigned long size)
return ret;
}
static int is_root_node(const struct device_node *dp)
{
if (!dp)
return 0;
return (dp->parent == NULL);
}
/* The following routines deal with the black magic of fully naming a
* node.
*
@ -364,7 +356,7 @@ static void __init __build_path_component(struct device_node *dp, char *tmp_buf)
}
}
static char * __init build_path_component(struct device_node *dp)
char * __init build_path_component(struct device_node *dp)
{
char tmp_buf[64], *n;
@ -379,57 +371,6 @@ static char * __init build_path_component(struct device_node *dp)
return n;
}
static char * __init build_full_name(struct device_node *dp)
{
int len, ourlen, plen;
char *n;
plen = strlen(dp->parent->full_name);
ourlen = strlen(dp->path_component_name);
len = ourlen + plen + 2;
n = prom_early_alloc(len);
strcpy(n, dp->parent->full_name);
if (!is_root_node(dp->parent)) {
strcpy(n + plen, "/");
plen++;
}
strcpy(n + plen, dp->path_component_name);
return n;
}
static struct device_node * __init build_tree(struct device_node *parent, phandle node, struct device_node ***nextp)
{
struct device_node *ret = NULL, *prev_sibling = NULL;
struct device_node *dp;
while (1) {
dp = create_node(node, parent);
if (!dp)
break;
if (prev_sibling)
prev_sibling->sibling = dp;
if (!ret)
ret = dp;
prev_sibling = dp;
*(*nextp) = dp;
*nextp = &dp->allnext;
dp->path_component_name = build_path_component(dp);
dp->full_name = build_full_name(dp);
dp->child = build_tree(dp, prom_getchild(node), nextp);
node = prom_getsibling(node);
}
return ret;
}
static const char *get_mid_prop(void)
{
return (tlb_type == spitfire ? "upa-portid" : "portid");
@ -640,14 +581,14 @@ void __init prom_build_devicetree(void)
{
struct device_node **nextp;
allnodes = create_node(prom_root_node, NULL);
allnodes = prom_create_node(prom_root_node, NULL);
allnodes->path_component_name = "";
allnodes->full_name = "/";
nextp = &allnodes->allnext;
allnodes->child = build_tree(allnodes,
prom_getchild(allnodes->node),
&nextp);
allnodes->child = prom_build_tree(allnodes,
prom_getchild(allnodes->node),
&nextp);
of_console_init();
printk("PROM: Built device tree with %u bytes of memory.\n",

57
arch/sparc/kernel/prom_common.c
View File

@ -216,8 +216,8 @@ static char * __init get_one_property(phandle node, const char *name)
return buf;
}
struct device_node * __init create_node(phandle node,
struct device_node *parent)
struct device_node * __init prom_create_node(phandle node,
struct device_node *parent)
{
struct device_node *dp;
@ -240,3 +240,56 @@ struct device_node * __init create_node(phandle node,
return dp;
}
static char * __init build_full_name(struct device_node *dp)
{
int len, ourlen, plen;
char *n;
plen = strlen(dp->parent->full_name);
ourlen = strlen(dp->path_component_name);
len = ourlen + plen + 2;
n = prom_early_alloc(len);
strcpy(n, dp->parent->full_name);
if (!is_root_node(dp->parent)) {
strcpy(n + plen, "/");
plen++;
}
strcpy(n + plen, dp->path_component_name);
return n;
}
struct device_node * __init prom_build_tree(struct device_node *parent,
phandle node,
struct device_node ***nextp)
{
struct device_node *ret = NULL, *prev_sibling = NULL;
struct device_node *dp;
while (1) {
dp = prom_create_node(node, parent);
if (!dp)
break;
if (prev_sibling)
prev_sibling->sibling = dp;
if (!ret)
ret = dp;
prev_sibling = dp;
*(*nextp) = dp;
*nextp = &dp->allnext;
dp->path_component_name = build_path_component(dp);
dp->full_name = build_full_name(dp);
dp->child = prom_build_tree(dp, prom_getchild(node), nextp);
node = prom_getsibling(node);
}
return ret;
}