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[Qemu-devel] [PATCH v2 0/3] SD emulation fixes for Pi2 Tianocore EDK2 UE


From: Andrew Baumann
Subject: [Qemu-devel] [PATCH v2 0/3] SD emulation fixes for Pi2 Tianocore EDK2 UEFI
Date: Wed, 16 Dec 2015 11:02:45 -0800

This series contains fixes to the SD card emulation that are needed to
unblock Tianocore EDK2 UEFI (specifically, the bootloader for Windows
on Raspberry Pi 2).

Changes in v2, based on feedback from Peter Crosthwaite:
 * correct implementation of CMD23 to switch to transfer state on completion
 * use an actual timer for the power-up delay, rather than relying on
   the guest polling ACMD41 twice
 * added patch 3: replace fprintfs with guest error logging

(I'm guessing at the CC list here, since this code appears to be
unmaintained. Apologies if I guessed wrong!)

Cheers,
Andrew

Andrew Baumann (3):
  hw/sd: implement CMD23 (SET_BLOCK_COUNT) for MMC compatibility
  hw/sd: model a power-up delay, as a workaround for an EDK2 bug
  hw/sd: use guest error logging rather than fprintf to stderr

 hw/sd/sd.c | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 90 insertions(+), 14 deletions(-)

-- 
2.5.3




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