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Diffstat (limited to 'src/include/fit.h')
-rw-r--r-- | src/include/fit.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/include/fit.h b/src/include/fit.h new file mode 100644 index 0000000000..1b2f975042 --- /dev/null +++ b/src/include/fit.h @@ -0,0 +1,78 @@ +/* + * Copyright 2013 Google Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but without any warranty; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __BOOT_FIT_H__ +#define __BOOT_FIT_H__ + +#include <stddef.h> +#include <stdint.h> + +#include "base/device_tree.h" +#include "base/list.h" + +typedef enum CompressionType +{ + CompressionInvalid, + CompressionNone, + CompressionLzma, + CompressionLz4, +} CompressionType; + +typedef struct FitImageNode +{ + const char *name; + void *data; + uint32_t size; + CompressionType compression; + + ListNode list_node; +} FitImageNode; + +typedef struct FitConfigNode +{ + const char *name; + const char *kernel; + FitImageNode *kernel_node; + const char *fdt; + FitImageNode *fdt_node; + const char *ramdisk; + FitImageNode *ramdisk_node; + FdtProperty compat; + int compat_rank; + int compat_pos; + + ListNode list_node; +} FitConfigNode; + +/* + * Unpack a FIT image into memory, choosing the right configuration through the + * compatible string set by fit_add_compat() and unflattening the corresponding + * kernel device tree. + */ +FitImageNode *fit_load(void *fit, char *cmd_line, DeviceTree **dt); + +/* + * Add a compatible string for the preferred kernel DT to the list for this + * platform. This should be called before the first fit_load() so it will be + * ranked as a better match than the default compatible strings. |compat| must + * stay accessible throughout depthcharge's runtime (i.e. not stack-allocated)! + */ +void fit_add_compat(const char *compat); + +void fit_add_ramdisk(DeviceTree *tree, void *ramdisk_addr, size_t ramdisk_size); + +#endif /* __BOOT_FIT_H__ */ |