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memory: add Renesas RPC-IF driver

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Add the memory driver for Renesas RPC-IF which registers either SPI or
HyperFLash device depending on the contents of the device tree subnode.
It also provides the absract "back end" device APIs that can be used by
the "front end" SPI/MTD drivers to talk to the real hardware.

Based on the original patch by Mason Yang <masonccyang@mxic.com.tw>.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Link: https://lore.kernel.org/r/9a3606ec-d4d0-c63a-4fb6-631ab38e621c@cogentembedded.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sergei Shtylyov
2020-06-16 23:03:48 +03:00
committed by Mark Brown
parent ab1c362061
commit ca7d8b980b
4 changed files with 700 additions and 0 deletions
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9
drivers/memory/Kconfig
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@@ -174,6 +174,15 @@ config PL353_SMC
This driver is for the ARM PL351/PL353 Static Memory
Controller(SMC) module.
config RENESAS_RPCIF
tristate "Renesas RPC-IF driver"
depends on ARCH_RENESAS
select REGMAP_MMIO
help
This supports Renesas R-Car Gen3 RPC-IF which provides either SPI
host or HyperFlash. You'll have to select individual components
under the corresponding menu.
source "drivers/memory/samsung/Kconfig"
source "drivers/memory/tegra/Kconfig"