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* gen: Add sha h/w acceleration to hashAkshay Saraswat2013-03-291-0/+18
| | | | | | | | | Adding H/W acceleration support to hash which can be used to test SHA 256 hash algorithm. Signed-off-by: ARUN MANKUZHI <arun.m@samsung.com> Signed-off-by: Akshay Saraswat <akshay.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
* hash: Use lower case for hash algorithm namesSimon Glass2013-02-281-5/+6
| | | | | | | | | | Rather than use strcasecmp() in the hash algorithm search, require the caller to do this first. Most of U-Boot can use lower case anyway, and the hash command can convert to lower case before calling hash_command(). This saves needing strcasecmp() for boards that use hashing but not the hash command. Signed-off-by: Simon Glass <sjg@chromium.org>
* sandbox: Allow hash functions to work correctlySimon Glass2013-02-281-8/+16
| | | | | | Use map_sysmem() so that hashing is possible on sandbox. Signed-off-by: Simon Glass <sjg@chromium.org>
* Roll crc32 into hash infrastructureSimon Glass2013-02-281-38/+80
| | | | | | | | | | | | | | | | | Add the CRC32 algorithm to the list of available hashes, and make the crc32 command use hash_command(). Add a new crc32_wd_buf() to make this possible, which puts its result in a buffer rather than returning it as a 32-bit value. Note: For some boards the hash command is not enabled, neither are sha1, sha256 or the verify option. In this case the full hash implementation adds about 500 bytes of overhead. So as a special case, we use #ifdef to select very simple bahaviour in that case. The justification for this is that it is currently a very common case (virtually all boards enable crc32 but only some enable more advanced features). Signed-off-by: Simon Glass <sjg@chromium.org>
* hash: Add a flag to support saving hashes in the environmentSimon Glass2013-02-281-17/+52
| | | | | | | | | Some hashing commands permit saving the hash in an environment variable, and verifying a hash from there. But the crc32 command does not support this. In order to permit crc32 to use the generic hashing infrastructure, add a flag to select which behaviour to use. Signed-off-by: Simon Glass <sjg@chromium.org>
* Add generic hash APISimon Glass2012-12-111-0/+221
We have a SHA1 command and want to add a SHA256 command also. Instead of duplicating the code, create a generic hash API which can process commands for different algorithms. Signed-off-by: Simon Glass <sjg@chromium.org>