[PATCH v2 05/41] sandbox: mmc: Support a backing file

[Simon Glass]

Provide a way for sandbox MMC to present data from a backing file. This
allows a filesystem to be created on the host and easily served via an
emulated mmc device.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v2:
- Free the memory buffer, to avoid running out of memory
- Unmap the file
- Reorder struct sandbox_mmc_priv

 doc/device-tree-bindings/mmc/sandbox,mmc.txt | 18 ++++++
 drivers/mmc/sandbox_mmc.c                    | 60 +++++++++++++++++---
 2 files changed, 69 insertions(+), 9 deletions(-)
 create mode 100644 doc/device-tree-bindings/mmc/sandbox,mmc.txt

Applied to u-boot-dm/next, thanks!