diff options
| author | Michal Simek | 2023-08-31 08:59:05 +0200 |
|---|---|---|
| committer | Michal Simek | 2023-09-21 13:20:11 +0200 |
| commit | db5e349d3ddfc75953b2364e94b111ea1795f3c8 (patch) | |
| tree | 993ebc7d3e58645baabfa8f1fae32193f4a405cf /include/dm | |
| parent | 99b46477e3495f819f6826d11470d46f12a4f9f7 (diff) | |
dm: core: ofnode: Add ofnode_read_bootscript_address()
ofnode_read_bootscript_address() reads bootscript address from
/options/u-boot DT node. bootscr-address or bootscr-ram-offset properties
are read and values are filled. bootscr-address has higher priority than
bootscr-ram-offset and the only one should be described in DT.
Also add test to cover this new function.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/23be3838502efef61803c90ef6e8b32bbd6ede41.1693465140.git.michal.simek@amd.com
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/ofnode.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index 0a85db31f36..c38596acbd0 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -20,6 +20,7 @@ struct resource; #include <dm/ofnode_decl.h> +#include <linux/errno.h> struct ofnode_phandle_args { ofnode node; @@ -1512,6 +1513,26 @@ int ofnode_conf_read_int(const char *prop_name, int default_val); */ const char *ofnode_conf_read_str(const char *prop_name); +/** + * ofnode_read_bootscript_address() - Read bootscr-address or bootscr-ram-offset + * + * @bootscr_address: pointer to 64bit address where bootscr-address property value + * is stored + * @bootscr_offset: pointer to 64bit offset address where bootscr-ram-offset + * property value is stored + * + * This reads a bootscr-address or bootscr-ram-offset property from + * the /options/u-boot/ node of the devicetree. bootscr-address holds the full + * address of the boot script file. bootscr-ram-offset holds the boot script + * file offset from the start of the ram base address. When bootscr-address is + * defined, bootscr-ram-offset property is ignored. + * + * This only works with the control FDT. + * + * Return: 0 if OK, -EINVAL if property is not found. + */ +int ofnode_read_bootscript_address(u64 *bootscr_address, u64 *bootscr_offset); + #else /* CONFIG_DM */ static inline bool ofnode_conf_read_bool(const char *prop_name) { @@ -1528,6 +1549,11 @@ static inline const char *ofnode_conf_read_str(const char *prop_name) return NULL; } +static inline int ofnode_read_bootscript_address(u64 *bootscr_address, u64 *bootscr_offset) +{ + return -EINVAL; +} + #endif /* CONFIG_DM */ /** |