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Add additional fdt fixup helper functions

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Added the following fdt fixup helpers:
 * do_fixup_by_prop{_u32} - Find matching nodes by property name/value
 * do_fixup_by_compat{_u32} - Find matching nodes by compat

The _u32 variants work the same only the property they are setting
is know to be a 32-bit integer instead of a byte buffer.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala 2007-11-21 13:30:15 -06:00
parent ab544633ab
commit 9eb77cea1f
2 changed files with 66 additions and 0 deletions
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55
common/fdt_support.c
View File

@ -386,6 +386,61 @@ void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop,
do_fixup_by_path(fdt, path, prop, &val, sizeof(val), create);
}
void do_fixup_by_prop(void *fdt,
const char *pname, const void *pval, int plen,
const char *prop, const void *val, int len,
int create)
{
int off;
#if defined(DEBUG)
int i;
debug("Updating property '%s/%s' = ", node, prop);
for (i = 0; i < len; i++)
debug(" %.2x", *(u8*)(val+i));
debug("\n");
#endif
off = fdt_node_offset_by_prop_value(fdt, -1, pname, pval, plen);
while (off != -FDT_ERR_NOTFOUND) {
if (create || (fdt_get_property(fdt, off, prop, 0) != NULL))
fdt_setprop(fdt, off, prop, val, len);
off = fdt_node_offset_by_prop_value(fdt, off, pname, pval, plen);
}
}
void do_fixup_by_prop_u32(void *fdt,
const char *pname, const void *pval, int plen,
const char *prop, u32 val, int create)
{
val = cpu_to_fdt32(val);
do_fixup_by_prop(fdt, pname, pval, plen, prop, &val, 4, create);
}
void do_fixup_by_compat(void *fdt, const char *compat,
const char *prop, const void *val, int len, int create)
{
int off = -1;
#if defined(DEBUG)
int i;
debug("Updating property '%s/%s' = ", node, prop);
for (i = 0; i < len; i++)
debug(" %.2x", *(u8*)(val+i));
debug("\n");
#endif
off = fdt_node_offset_by_compatible(fdt, -1, compat);
while (off != -FDT_ERR_NOTFOUND) {
if (create || (fdt_get_property(fdt, off, prop, 0) != NULL))
fdt_setprop(fdt, off, prop, val, len);
off = fdt_node_offset_by_compatible(fdt, off, compat);
}
}
void do_fixup_by_compat_u32(void *fdt, const char *compat,
const char *prop, u32 val, int create)
{
val = cpu_to_fdt32(val);
do_fixup_by_compat(fdt, compat, prop, &val, 4, create);
}
void fdt_fixup_ethernet(void *fdt, bd_t *bd)
{
int node;

11
include/fdt_support.h
View File

@ -33,6 +33,17 @@ void do_fixup_by_path(void *fdt, const char *path, const char *prop,
const void *val, int len, int create);
void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop,
u32 val, int create);
void do_fixup_by_prop(void *fdt,
const char *pname, const void *pval, int plen,
const char *prop, const void *val, int len,
int create);
void do_fixup_by_prop_u32(void *fdt,
const char *pname, const void *pval, int plen,
const char *prop, u32 val, int create);
void do_fixup_by_compat(void *fdt, const char *compat,
const char *prop, const void *val, int len, int create);
void do_fixup_by_compat_u32(void *fdt, const char *compat,
const char *prop, u32 val, int create);
void fdt_fixup_ethernet(void *fdt, bd_t *bd);
#ifdef CONFIG_OF_HAS_UBOOT_ENV