[Qemu-devel] [PATCH 0/5] Fix MMC card detection for Realview boards

[Peter Maydell <peter.maydell@linaro.org>]

This patchset fixes a number of problems which were preventing
Linux on Realview boards (EB926, EB 11MPCore, PB-A8 and PBX)
from recognising the presence of an MMC card. Basically the
PL181 needs to export some output pins for card status,
which we can then wire up to both a system register and a
PL061 GPIO module. However we weren't actually instantiating
the PL061 and in any case the ID registers weren't correct for
Linux to detect it.

Combined with the SD card model patch I posted earlier
(http://patchwork.ozlabs.org/patch/83594/) these patches
allow Linux on a PBX to detect and mount an SD card rootfs.

(I'm doing this work not for the sake of the realview boards,
but because it's also mostly necessary for the Versatile Express
model patchset I'm cleaning up and hope to post shortly.)

Peter Maydell (5):
  hw/pl181: Implement GPIO output pins for card status
  hw/arm_sysctl.c: Wire MCI register MMC card status bits to GPIO inputs
  hw/pl061.c: Implement ARM PL061 as well as Luminary one
  hw/irq: Add qemu_irq_split() so one GPIO output can feed two inputs
  hw/realview: Wire up the MMC card status

 hw/arm_sysctl.c |   47 ++++++++++++++++++++++++++++++++++++++++++++++-
 hw/irq.c        |   15 +++++++++++++++
 hw/irq.h        |    3 +++
 hw/pl061.c      |   23 +++++++++++++++++++----
 hw/pl181.c      |    6 ++++++
 hw/primecell.h  |    4 ++++
 hw/realview.c   |   29 ++++++++++++++++++++++++++---
 hw/stellaris.c  |    2 +-
 8 files changed, 120 insertions(+), 9 deletions(-)