Neil Armstrong 8a38a4d51c mmc: meson-gx: do not use memcpy_to/fromio for dram-access-quirk ... The memory at the end of the controller only accepts 32bit read/write accesses, but the arm64 memcpy_to/fromio implementation only uses 64bit (which will be split into two 32bit access) and 8bit leading to incomplete copies to/from this memory when the buffer is not multiple of 8bytes. Add a local copy using writel/readl accesses to make sure we use the right memory access width. The switch to memcpy_to/fromio was done because of 285133040e ("arm64: Import latest memcpy()/memmove() implementation"), but using memcpy worked before since it mainly used 32bit memory acceses. Fixes: 103a5348c2 ("mmc: meson-gx: use memcpy_to/fromio for dram-access-quirk") Reported-by: Christian Hewitt <christianshewitt@gmail.com> Suggested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210928073652.434690-1-narmstrong@baylibre.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>		2021-10-06 17:23:28 +02:00
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core	TTY / Serial patches for 5.15-rc1	2021-09-01 09:51:16 -07:00
host	mmc: meson-gx: do not use memcpy_to/fromio for dram-access-quirk	2021-10-06 17:23:28 +02:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00