Support reads of arbitrary range

That means you can tell flashrom to read exactly bytes 12345-56789
(start 12345, length 44445) and it will not fetch a single byte more.

Uwe tested this on one LPC, one SPI, and one parallel flash board.

Corresponding to flashrom svn r596.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/ichspi.c b/ichspi.c
index e3fb740..9091230 100644
--- a/ichspi.c
+++ b/ichspi.c
@@ -647,14 +647,14 @@ static int ich_spi_write_page(struct flashchip *flash, uint8_t * bytes,
 	return 0;
 }
 
-int ich_spi_read(struct flashchip *flash, uint8_t * buf)
+int ich_spi_read(struct flashchip *flash, uint8_t * buf, int start, int len)
 {
 	int maxdata = 64;
 
 	if (spi_controller == SPI_CONTROLLER_VIA)
 		maxdata = 16;
 
-	return spi_read_chunked(flash, buf, maxdata);
+	return spi_read_chunked(flash, buf, start, len, maxdata);
 }
 
 int ich_spi_write_256(struct flashchip *flash, uint8_t * buf)