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| author | Cyril Bur <cyril.bur@au1.ibm.com> | 2015-03-12 17:42:06 +1100 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2015-03-17 17:58:03 +1100 |
| commit | 672f26aeae18352e1fe8e4c7030cf1e338188487 (patch) | |
| tree | a6f4cd3262216e7f2744e164bfa685cc48a87eb6 /libflash/ecc.h | |
| parent | 5e10de0c32edc997407ef1911946f700e30ffd5e (diff) | |
| download | skiboot-672f26aeae18352e1fe8e4c7030cf1e338188487.zip skiboot-672f26aeae18352e1fe8e4c7030cf1e338188487.tar.gz skiboot-672f26aeae18352e1fe8e4c7030cf1e338188487.tar.bz2 | |
libflash: Improved ECC interface
This patch is twofold.
1. Improves the low level ecc memcpy code to better
specify that we're reading/writing buffers with ecc bytes.
2. Improves/creates the libflash interfaces for ecc.
This patch also includes some tests
Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'libflash/ecc.h')
| -rw-r--r-- | libflash/ecc.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/libflash/ecc.h b/libflash/ecc.h index 581886f..d58ec3e 100644 --- a/libflash/ecc.h +++ b/libflash/ecc.h @@ -20,6 +20,7 @@ #define __ECC_H #include <stdint.h> +#include <ccan/endian/endian.h> /* Bit field identifiers for syndrome calculations. */ enum eccbitfields @@ -36,7 +37,14 @@ enum eccbitfields E7 = 64 //< Error in ECC bit 7 }; -extern uint8_t eccmemcpy(uint64_t *dst, uint64_t *src, uint32_t len); +struct ecc64 { + beint64_t data; + uint8_t ecc; +} __attribute__((__packed__)); + +extern uint8_t memcpy_from_ecc(uint64_t *dst, struct ecc64 *src, uint32_t len); + +extern uint8_t memcpy_to_ecc(struct ecc64 *dst, const uint64_t *src, uint32_t len); /* * Calculate the size of a buffer if ECC is added |