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loader: Support Flattened Image Trees (FIT images)

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Introduce support for loading Flattened Image Trees, as used by modern
U-Boot. FIT images are essentially flattened device tree files which
contain binary images such as kernels, FDTs or ramdisks along with one
or more configuration nodes describing boot configurations.

The MIPS Boston board typically boots kernels in the form of FIT images,
and will make use of this code.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
[yongbok.kim@imgtec.com:
  fixed potential memory leaks,
  isolated building option]
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
This commit is contained in:
Paul Burton 2016-09-08 15:51:56 +01:00 • committed by Yongbok Kim
parent 6e85fce022
commit 51b58561c1
5 changed files with 374 additions and 6 deletions
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6
include/hw/loader.h
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@ -164,6 +164,8 @@ int load_uimage(const char *filename, hwaddr *ep,
*/
int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz);
ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src, size_t srclen);
ssize_t read_targphys(const char *name,
int fd, hwaddr dst_addr, size_t nbytes);
void pstrcpy_targphys(const char *name,
@ -214,4 +216,8 @@ void hmp_info_roms(Monitor *mon, const QDict *qdict);
int rom_add_vga(const char *file);
int rom_add_option(const char *file, int32_t bootindex);
/* This is the usual maximum in uboot, so if a uImage overflows this, it would
* overflow on real hardware too. */
#define UBOOT_MAX_GUNZIP_BYTES (64 << 20)
#endif