title: V3U; upport RPC fixes and enable for V3U
team: IO
key: af952030-922c-11eb-a0e9-17a4402ca5c4
status: New

bsp41x:
 - c419cfd7766efb7bbc95d964586ca3668b61cdb7 # memory: renesas-rpc-if: Use burst read operation
 - f817442ce56d351a2c69515570ca750edb54622b # memory: renesas-rpc-if: Do not write to reserved bits
 - 3612986e5109c4de99cd3f75caf5bf6c756ef0f0 # memory: renesas-rpc-if: Correct data transfer in Manual mode
 - 85f41a8a4d61f366d1591516349ba2447a59e06f # Revert "memory: renesas-rpc-if: Correct data transfer in Manual mode"
 - 0d37f69cacb3343514380ff4a9c271b746959190 # memory: renesas-rpc-if: Correct QSPI data transfer in Manual mode
 - b587ed1d5e129cc32ab3c69b9489377bf158b9b6 # dt-bindings: rpc: renesas-rpc-if: Add support for the R8A779A0 RPC-IF
 - e05ce4b3ba724c77bd19f138476dc97d27eba824 # arm64: dts: renesas: r8a779a0: Add RPC-IF node
 - 44c210c0fa36a53c3fb08e95e5a6dad8ad9b345d # arm64: dts: renesas: falcon: Add QSPI flash support

upstream:

comments:
 - "85f41a8a4d61f366d1591516349ba2447a59e06f is the revert of 3612986e5109c4de99cd3f75caf5bf6c756ef0f0: no action needed for those"
 - "0d37f69cacb3343514380ff4a9c271b746959190 must be upported before enabling V3U. Otherwise flash memory might get broken, i.e. wrongly fused"
 - "0d37f69cacb3343514380ff4a9c271b746959190 very likely must be refactored. The mixture of regmap and direct register writes does not look good"
 - "because HW access to V3U is still very limited, it is suggested to upport/refactor the driver fixes using locally available boards first"
 - "for that, RPC must be enabled in TFA, cf: https://github.com/ARM-software/arm-trusted-firmware/commit/6e93392b7a761c43c1f4b5b564fe57c51d806388"