diff options
| author | Shengzhou Liu <Shengzhou.Liu@freescale.com> | 2011-10-14 16:26:05 +0800 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-10-18 00:36:55 -0500 |
| commit | 2a523f524090d7fc5600ece9f12d7c955db567d7 (patch) | |
| tree | 5c7e51b81be51bae4f7ef571861dab675652bb4d /include | |
| parent | 4d28db8a1e8b90e1e3ffd95d7f949b849e33fa2f (diff) | |
fdt: Add new fdt_set_node_status & fdt_set_status_by_alias helpers
Add common function fdt_set_node_status() to assist in various locations
that we set a nodes status. This function utilizes the status values
that are part of the EPAPR spec (on power.org).
fdt_set_status_by_alias() is based on fdt_set_node_status() but uses an
alias string to identify the node to update.
We also add some shortcut functions to help the common cases of setting
"okay" and "disabled":
fdt_status_okay()
fdt_status_disabled()
fdt_status_okay_by_alias()
fdt_status_disabled_by_alias()
Finally, we fixup the corenet_ds ethernet code which previously had
a function by the same name that can be replaced with the new helpers.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/fdt_support.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/fdt_support.h b/include/fdt_support.h index 4826eee1ba..c7b4605f06 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -104,5 +104,33 @@ int fdt_verify_alias_address(void *fdt, int anode, const char *alias, u64 addr); u64 fdt_get_base_address(void *fdt, int node); +enum fdt_status { + FDT_STATUS_OKAY, + FDT_STATUS_DISABLED, + FDT_STATUS_FAIL, + FDT_STATUS_FAIL_ERROR_CODE, +}; +int fdt_set_node_status(void *fdt, int nodeoffset, + enum fdt_status status, unsigned int error_code); +static inline int fdt_status_okay(void *fdt, int nodeoffset) +{ + return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_OKAY, 0); +} +static inline int fdt_status_disabled(void *fdt, int nodeoffset) +{ + return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_DISABLED, 0); +} + +int fdt_set_status_by_alias(void *fdt, const char* alias, + enum fdt_status status, unsigned int error_code); +static inline int fdt_status_okay_by_alias(void *fdt, const char* alias) +{ + return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_OKAY, 0); +} +static inline int fdt_status_disabled_by_alias(void *fdt, const char* alias) +{ + return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_DISABLED, 0); +} + #endif /* ifdef CONFIG_OF_LIBFDT */ #endif /* ifndef __FDT_SUPPORT_H */ |