add firmware/driver/sd.c which contains common code between SD drivers

ingenic SD driver needs more cleanup so it still doesn't use the common code
correct a comment in hotswap.c: card_extract_bits assume most significant word of register first (so, use this order)
fix debug menu which used MMC specific commands / bits positions in csd/cid
move the default block size of 512 into sd.h
move the mantissa & exponent table into a single file (sd.c) to reduce binsize. we don't need to export it anymore anyway

TODO : ingenic cleanup (will happen soon so building sd.c is not conditional)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21601 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/hotswap.c b/firmware/hotswap.c
index ec298f7243..79595e4591 100644
--- a/firmware/hotswap.c
+++ b/firmware/hotswap.c
@@ -36,7 +36,7 @@ unsigned long card_extract_bits(
     unsigned int long_index, bit_index;
     unsigned long result;
 
-    /* we assume words of CSD/CID are stored least significant word first */
+    /* we assume words of CSD/CID are stored most significant word first */
     start = 127 - start;
 
     long_index = start / 32;