On 10.10.2015 16:20, Paul Kocialkowski wrote:
> Some chips such as the ENE KB9012 internal flash require a write granularity
> of
> 128 bytes.
>
> Signed-off-by: Paul Kocialkowski <[email protected]>
clean patch, +2
> ---
> flash.h | 1 +
> flashrom.c | 6 ++++++
> 2 files changed, 7 insertions(+)
>
> diff --git a/flash.h b/flash.h
> index 2c2839f..24861ba 100644
> --- a/flash.h
> +++ b/flash.h
> @@ -85,6 +85,7 @@ enum write_granularity {
> write_gran_1bit, /* Each bit can be cleared individually. */
> write_gran_1byte, /* A byte can be written once. Further writes
> to an already written byte cause
> * its contents to be either undefined or to
> stay unchanged. */
> + write_gran_128bytes, /* If less than 128 bytes are written, the
> unwritten bytes are undefined. */
> write_gran_264bytes, /* If less than 264 bytes are written, the
> unwritten bytes are undefined. */
> write_gran_512bytes, /* If less than 512 bytes are written, the
> unwritten bytes are undefined. */
> write_gran_528bytes, /* If less than 528 bytes are written, the
> unwritten bytes are undefined. */
> diff --git a/flashrom.c b/flashrom.c
> index d51a44c..c9c7e31 100644
> --- a/flashrom.c
> +++ b/flashrom.c
> @@ -781,6 +781,9 @@ int need_erase(const uint8_t *have, const uint8_t *want,
> unsigned int len, enum
> break;
> }
> break;
> + case write_gran_128bytes:
> + result = need_erase_gran_bytes(have, want, len, 128);
> + break;
> case write_gran_256bytes:
> result = need_erase_gran_bytes(have, want, len, 256);
> break;
> @@ -847,6 +850,9 @@ static unsigned int get_next_write(const uint8_t *have,
> const uint8_t *want, uns
> case write_gran_1byte_implicit_erase:
> stride = 1;
> break;
> + case write_gran_128bytes:
> + stride = 128;
> + break;
> case write_gran_256bytes:
> stride = 256;
> break;
>
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