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bootstd: Allow iterating to the next label in a list

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Add a function which moves to the next label in a list of labels. This
allows processing the boot_targets environment variable.

This works using a new label list in the bootflow iterator. The logic to
set this up is included in a subsequent commit.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2023-01-17 10:48:10 -07:00
committed by Tom Rini
parent 66e3dce787
commit e4b694893f
4 changed files with 123 additions and 3 deletions
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4
include/bootflow.h
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@@ -175,6 +175,8 @@ enum bootflow_meth_flags_t {
* @cur_dev: Current bootdev number, an index into @dev_order[]
* @dev_order: List of bootdevs to scan, in order of priority. The scan starts
* with the first one on the list
* @labels: List of labels to scan for bootdevs
* @cur_label: Current label being processed
* @num_methods: Number of bootmeth devices in @method_order
* @cur_method: Current method number, an index into @method_order
* @first_glob_method: First global method, if any, else -1
@@ -196,6 +198,8 @@ struct bootflow_iter {
int num_devs;
int cur_dev;
struct udevice **dev_order;
const char *const *labels;
int cur_label;
int num_methods;
int cur_method;
int first_glob_method;