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splash: add support for loading splash from a FIT image

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Enable support for loading a splash image from within a FIT image.
The image is assumed to be generated with mkimage -E flag to hold
the data external to the FIT.

Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
This commit is contained in:
tomas.melin@vaisala.com
2017-01-13 13:20:14 +02:00
committed by Anatolij Gustschin
parent 7583f1f577
commit db1b79b886
5 changed files with 136 additions and 8 deletions
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48
common/image-fit.c
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@@ -777,6 +777,54 @@ int fit_image_get_data(const void *fit, int noffset,
return 0;
}
/**
* Get 'data-offset' property from a given image node.
*
* @fit: pointer to the FIT image header
* @noffset: component image node offset
* @data_offset: holds the data-offset property
*
* returns:
* 0, on success
* -ENOENT if the property could not be found
*/
int fit_image_get_data_offset(const void *fit, int noffset, int *data_offset)
{
const fdt32_t *val;
val = fdt_getprop(fit, noffset, FIT_DATA_OFFSET_PROP, NULL);
if (!val)
return -ENOENT;
*data_offset = fdt32_to_cpu(*val);
return 0;
}
/**
* Get 'data-size' property from a given image node.
*
* @fit: pointer to the FIT image header
* @noffset: component image node offset
* @data_size: holds the data-size property
*
* returns:
* 0, on success
* -ENOENT if the property could not be found
*/
int fit_image_get_data_size(const void *fit, int noffset, int *data_size)
{
const fdt32_t *val;
val = fdt_getprop(fit, noffset, FIT_DATA_SIZE_PROP, NULL);
if (!val)
return -ENOENT;
*data_size = fdt32_to_cpu(*val);
return 0;
}
/**
* fit_image_hash_get_algo - get hash algorithm name
* @fit: pointer to the FIT format image header