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memory: renesas-rpc-if: Add support for R-Car Gen4

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The SPI Multi I/O Bus Controller (RPC-IF) on R-Car Gen4 SoCs is very
similar to the RPC-IF on R-Car Gen3 SoCs.  It does support four instead
of three bits of strobe timing adjustment (STRTIM), and thus requires a
new mask and new settings.

Inspired by a patch in the BSP by Cong Dang.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/4d0824bf5ed0fb95c51cd36f9a3f0f562b1a6bf8.1665583089.git.geert+renesas@glider.be
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
This commit is contained in:
Geert Uytterhoeven
2022-10-12 16:01:52 +02:00
committed by Krzysztof Kozlowski
parent 5192481f90
commit 1de3866f6d
2 changed files with 13 additions and 7 deletions
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1
include/memory/renesas-rpc-if.h
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@@ -59,6 +59,7 @@ struct rpcif_op {
enum rpcif_type {
RPCIF_RCAR_GEN3,
RPCIF_RCAR_GEN4,
RPCIF_RZ_G2L,
};