Introduce helpers.c

Move some suitable functions there, add it to the Makefile, but leave the
declarations in flash.h for now.

Corresponding to flashrom svn r1819.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

1 files changed, 0 insertions, 11 deletions

diff --git a/at45db.c b/at45db.c
index 41fc497..5396d7f 100644
--- a/at45db.c
+++ b/at45db.c
@@ -215,17 +215,6 @@ int probe_spi_at45db(struct flashctx *flash)
 	return 1;
 }
 
-/* Returns the minimum number of bits needed to represent the given address.
- * FIXME: use mind-blowing implementation.
- * FIXME: move to utility module. */
-static uint32_t address_to_bits(uint32_t addr)
-{
-	unsigned int lzb = 0;
-	while (((1 << (31 - lzb)) & ~addr) != 0)
-		lzb++;
-	return 32 - lzb;
-}
-
 /* In case of non-power-of-two page sizes we need to convert the address flashrom uses to the address the
  * DataFlash chips use. The latter uses a segmented address space where the page address is encoded in the
  * more significant bits and the offset within the page is encoded in the less significant bits. The exact