[PATCH 0/5] sdcard improvements

[Kevin O'Connor]

This series expands the sdcard init sequence (as detailed in the SDHCI
spec).  It will probably still only work under QEMU, but it's further
along.

-Kevin

Kevin O'Connor (5):
  sdcard: Check if card is present before sending commands to card
  sdcard: Implement controller frequency setting according to sdhci spec
  sdcard: Make sure controller support 3.3V before enabling it
  sdcard: Set timeout control register during init (to max allowed
    timeout)
  sdcard: Improve SD card initialization command sequence

src/hw/sdcard.c | 110 +++++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 101 insertions(+), 9 deletions(-)