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splash: get devpart from environment variable

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By default several types of splash locations are supported and the
user can select one of them through environment var (splashsource).

However the devpart is still hardcoded and we cannot change it from
the environment.

This patch add the support of "splashdevpart" which allow the user to
set the devpart though this environment variable.

Example: image located in splashscreen partition (MMC as raw)
```
splashsource=mmc_raw
splashdevpart=0#splashscreen
```

Signed-off-by: Julien Masson <jmasson@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Julien Masson 2022-10-17 10:33:22 +02:00 committed by Anatolij Gustschin
parent a638d9a47c
commit 7fcb30c0e0
1 changed files with 5 additions and 0 deletions
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5
common/splash_source.c
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@ -448,6 +448,7 @@ int splash_source_load(struct splash_location *locations, uint size)
{
struct splash_location *splash_location;
char *env_splashimage_value;
char *devpart;
u32 bmp_load_addr;
env_splashimage_value = env_get("splashimage");
@ -464,6 +465,10 @@ int splash_source_load(struct splash_location *locations, uint size)
if (!splash_location)
return -EINVAL;
devpart = env_get("splashdevpart");
if (devpart)
splash_location->devpart = devpart;
if (splash_location->flags == SPLASH_STORAGE_RAW)
return splash_load_raw(splash_location, bmp_load_addr);
else if (splash_location->flags == SPLASH_STORAGE_FS)