memory: renesas-rpc-if: Move static bridge configurations out of dirmap hot paths

Move the initialization of the xSPI Bridge Control Register 0
(XSPI_BMCTL0) and Bridge Configuration Register (XSPI_BMCFG) from the
dirmap read and write implementations into the hardware initialization
function.

The bridge configuration values remain unchanged across sequential dirmap
transfers. Keeping these regmap_update_bits() calls inside the hot paths
(xspi_dirmap_read_impl and xspi_dirmap_write) introduces significant
software overhead and redundant register locking cycles.

Statically setting CS0ACC to 0x3 during xspi_hw_init_impl() permanently
enables the memory area for both read and write operations.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://patch.msgid.link/20260727103449.3188105-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

0 files changed, 0 insertions, 0 deletions