diff options
Diffstat (limited to 'boot/bootflow.c')
| -rw-r--r-- | boot/bootflow.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/boot/bootflow.c b/boot/bootflow.c index 487552fa28c..b820678d41a 100644 --- a/boot/bootflow.c +++ b/boot/bootflow.c @@ -12,6 +12,7 @@ #include <bootmeth.h> #include <bootstd.h> #include <dm.h> +#include <env_internal.h> #include <malloc.h> #include <dm/device-internal.h> #include <dm/uclass-internal.h> @@ -552,3 +553,60 @@ int bootflow_iter_check_system(const struct bootflow_iter *iter) return -ENOTSUPP; } + +/** + * bootflow_cmdline_set() - Set the command line for a bootflow + * + * @value: New command-line string + * Returns 0 if OK, -ENOENT if no current bootflow, -ENOMEM if out of memory + */ +int bootflow_cmdline_set(struct bootflow *bflow, const char *value) +{ + char *cmdline = NULL; + + if (value) { + cmdline = strdup(value); + if (!cmdline) + return -ENOMEM; + } + + free(bflow->cmdline); + bflow->cmdline = cmdline; + + return 0; +} + +#ifdef CONFIG_BOOTSTD_FULL +/** + * on_bootargs() - Update the cmdline of a bootflow + */ +static int on_bootargs(const char *name, const char *value, enum env_op op, + int flags) +{ + struct bootstd_priv *std; + struct bootflow *bflow; + int ret; + + ret = bootstd_get_priv(&std); + if (ret) + return 0; + bflow = std->cur_bootflow; + if (!bflow) + return 0; + + switch (op) { + case env_op_create: + case env_op_overwrite: + ret = bootflow_cmdline_set(bflow, value); + if (ret && ret != ENOENT) + return 1; + return 0; + case env_op_delete: + bootflow_cmdline_set(bflow, NULL); + fallthrough; + default: + return 0; + } +} +U_BOOT_ENV_CALLBACK(bootargs, on_bootargs); +#endif |