mmc: meson-gx: use memcpy_to/fromio for dram-access-quirk

It has been reported that usage of memcpy() to/from an iomem mapping is invalid,
and a recent arm64 memcpy update [1] triggers a memory abort when dram-access-quirk
is used on the G12A/G12B platforms.

This adds a local sg_copy_to_buffer which makes usage of io versions of memcpy
when dram-access-quirk is enabled.

[1] 285133040e6c ("arm64: Import latest memcpy()/memmove() implementation")

Fixes: acdc8e71d9bb ("mmc: meson-gx: add dram-access-quirk")
Reported-by: Marek Szyprowski <[email protected]>
Suggested-by: Mark Rutland <[email protected]>
Signed-off-by: Neil Armstrong <[email protected]>
Tested-by: Marek Szyprowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Cc: [email protected]
Signed-off-by: Ulf Hansson <[email protected]>

0 files changed, 0 insertions, 0 deletions